JP6792537B2 - Shielded connector and shielded connector system - Google Patents

Description

The present invention relates mainly to a shield connector suitable for connecting a coaxial cable to a device, a circuit, or the like, and a shield connector system including a plurality of shield connectors.

In order to electrically connect the coaxial cable to the electronic / electric circuit provided on the substrate, plug connectors and receptacle connectors that are detachable from each other are often used. The plug connector is attached to the end of the coaxial cable and the receptacle connector is attached to the board.

Some plug connectors and resector pull connectors for coaxial cables have a structure in which the coaxial terminals are housed in a resin housing.

Specifically, the plug connector includes a housing made of resin and a coaxial terminal housed in the housing. The coaxial terminal has a structure in which the central conductor is surrounded by a tubular outer conductor via an insulator. The inner conductor (core wire) of the coaxial cable is connected to the center conductor, and the outer conductor (braid) of the coaxial cable is connected to the outer conductor.

On the other hand, the resector pull connector also includes a resin housing and a coaxial terminal housed in the housing. The central conductor of the coaxial terminal of the resector pull connector is connected to, for example, the signal circuit of the substrate, and the outer conductor of the coaxial terminal of the resector pull connector is connected to the ground circuit of the substrate.

For example, if the housing of the plug connector is male and the housing of the recessive pull connector is female, when connecting the plug connector to the receptacle connector, the tip side of the housing of the plug connector is the housing of the receptacle connector. It is inserted into the insertion slot of. As a result, the center conductor of the coaxial terminal of the plug connector and the center conductor of the coaxial terminal of the resector pull connector are connected to each other, and the outer conductor of the coaxial terminal of the plug connector and the outer conductor of the coaxial terminal of the resector pull connector are connected to each other. Are connected to each other.

Further, when the signal handled by the plug connector and the receptacle connector for the coaxial cable is a high frequency signal such as a digital video signal, the plug connector and the resector pull connector are made of a metal shield shell in order to remove high frequency noise. May be covered with.

Further, in order to exert the noise removal effect of the shield shell well, it is necessary to electrically connect the outer conductor of the coaxial cable to the shield shell and electrically connect the shield shell to the ground circuit of the substrate.

The electrical connection between the outer conductor of the coaxial cable and the shield shell may be made, for example, as follows. That is, a connection portion electrically connected to the outer conductor of the coaxial terminal or the outer conductor of the coaxial cable is provided on the outer peripheral side of the housing of the plug connector. Then, a shield shell is provided on the outer peripheral side of the housing of the receptacle connector, and a connection piece electrically connected to the shield shell is provided on the inner peripheral side of the housing. As a result, when the housing of the plug connector is inserted into the insertion port of the housing of the receptacle connector, the connection portion provided on the outer peripheral side of the housing of the plug connector and the connection piece provided on the inner peripheral side of the housing of the resector pull connector. Are in contact with each other, and the outer conductor of the coaxial cable and the shield shell are electrically connected.

Further, the electrical connection between the shield shell and the ground circuit of the substrate can be performed, for example, by providing the substrate connection portion in the shield shell and connecting the substrate connection portion to the ground circuit of the substrate.

Patent Document 1 below describes an example of a technique for electrically connecting an outer conductor of a coaxial cable connected to a plug connector and a shield shell provided in a resector pull connector.

Japanese Unexamined Patent Publication No. 2013-235733

In the above-mentioned receptacle connector, if the connection piece for electrically connecting the outer conductor of the coaxial cable and the shield shell is called a "shell connection piece", the shell connection piece has a plug connector housing of a resector pull connector. When inserted into the insertion port of the housing, the shell connector piece is formed so as to project inward of the housing of the receptacle connector so as to come into contact with the connection portion provided on the outer peripheral side of the housing of the plug connector. Unintended objects such as other cables and tools may enter the inside of the housing of the receptacle connector from the insertion port of the housing. Then, such an object may come into contact with the shell connection piece, and the shell connection piece may be damaged. For this reason, it is desirable that the resector pull connector be provided with a structure that protects the shell connection piece from unintended contact with an object. As this structure, for example, it is conceivable to provide the housing with a partition wall or the like that prevents the object from advancing to the shell connection piece.

On the other hand, in order to handle the same type of signal (for example, a video signal of a video image captured by a plurality of cameras in a vehicle around view monitor system), a shield connector system having a plurality of receptacle connectors may be mounted on the vehicle or the like. is there. At this time, in order to prevent erroneous insertion of the plug connector into the resector pull connector, it is desired to provide an erroneous insertion prevention structure in each of the plurality of resector pull connectors. The erroneous insertion prevention structure can be realized by changing the shape of the insertion port of the housing for each of a plurality of resector pull connectors.

However, if each resector pull connector is provided with a structure for protecting the shell connection piece from unintended contact with an object and a structure for preventing erroneous insertion, the shape of the resector pull connector may become complicated. Therefore, it may be difficult to manufacture the resector pull connector, or the manufacturing cost may increase.

The present invention has been made in view of the above-mentioned problems, for example, and an object of the present invention is to provide a structure for protecting a shell connection portion (shell connection piece) from unintended contact with an object and a structure for preventing erroneous insertion of a connector. It is an object of the present invention to provide a shielded connector and a shielded connector system which can be formed without complicating the shape.

In order to solve the above problems, the shield connector of the present invention is formed in a tubular shape by a signal terminal and an insulating material, an insertion port into which the mating connector is inserted is formed on the front end side, and the signal terminal is housed in the rear portion. The housing is provided with a shield shell formed of a conductive material and having an upper plate portion covering the outer surface of the upper wall of the housing and left and right side plate portions covering the outer surfaces of the left and right side walls of the housing, respectively, and the left and right side plate portions of the shield shell. One side plate portion of the housing is provided with a shell connection portion protruding inward of the housing through an insertion hole formed in one side wall corresponding to the one side plate portion of the left and right side walls of the housing. The front end of the housing, the peripheral edge of the insertion slot, has an uneven shape, and an erroneous insertion prevention part is provided to prevent erroneous insertion of the mating connector into the insertion port. It has a protrusion that projects inward of the housing from the front end of one side wall, the protrusion is located in front of the shell connector, and the protrusion and shell connection when the housing insertion slot is viewed from the front. Is characterized by overlapping with each other.

In the shield connector of the present invention, the convex portion of the erroneous insertion prevention portion has a function of preventing erroneous insertion into the insertion port of the mating connector, and the shell connection portion is damaged when an unintended object comes into contact with the shell connection portion. It also has a function to prevent. In this way, by providing a part of the erroneous insertion prevention part with a function of protecting the shell connection part, it is not necessary to separately form a structure for protecting the shell connection part, so that the structure of the shield connector can be simplified. Can be done.

Further, in the shield connector of the present invention described above, the shield shell is provided with a board connection portion for connecting the shield shell to the ground circuit of the board, and both the shell connection portion and the board connection portion are arranged at the front end portion of the housing. Is preferable.

Further, in the shield connector of the present invention described above, the shell connection portion is curved after or while projecting inward of the housing from one side plate portion of the shield shell through an insertion hole formed in one side wall of the housing. Further, it is preferable that the tip portion of the shell connection portion is in contact with one side plate portion of the shield shell through the insertion hole formed in one side wall of the housing from the inside of the housing again.

Further, in the shield connector of the present invention described above, the portion of one side plate of the shield shell where the tip of the shell connection portion is in contact is elastically deformed by receiving an external force from the inside of the shield shell to cause the shield shell. It is preferable that an elastic displacement portion that can be displaced to the outside is formed.

Further, in the shield connector of the present invention described above, the insertion hole formed in one side wall of the housing is a slit extending from the rear end portion of one side wall of the housing to the convex portion, and is a slit extending in the vertical direction of the slit. The length is preferably equal to or greater than the length of the convex portion in the vertical direction.

Further, in the shield connector of the present invention described above, it is preferable that a part of the erroneous insertion prevention portion is formed by adding a radius to the lower corner portion of the insertion port.

Further, in order to solve the above problems, the shield connector system of the present invention is a shield connector system having a plurality of shield connectors, and each shield connector is formed in a tubular shape by a signal terminal and an insulating material, and has a front end. An insertion port into which the mating connector is inserted is formed on the side, a housing in which the signal terminal is housed at the rear, an upper plate portion formed of a conductive material and covering the outer surface of the upper wall of the housing, and the outer surfaces of the left and right side walls of the housing. A shield shell having left and right side plate portions covering each is provided, and one side plate portion of the left and right side plate portions of the shield shell of each shield connector corresponds to the one side plate portion of the left and right side walls of the housing. A shell connection portion is provided that protrudes inside the housing through an insertion hole formed in one side wall, and the front end portion of the housing of each shield connector and the peripheral edge portion of the insertion port has an uneven shape. An erroneous insertion prevention part is provided to prevent erroneous insertion of the mating connector into the insertion port, and the erroneous insertion prevention part of each shield connector has a convex portion protruding inward from the front end of one side wall of the housing. The convex portion of each shield connector is arranged in front of the shell connection portion, and when the insertion port of each housing of the plurality of shield connectors is viewed from the front thereof, the position or shape of the convex portion is a plurality of shields. Even if the connectors are different, the convex portion and the shell connection portion are overlapped with each other in any of the plurality of shield connectors.

In each shield connector of the shield connector system of the present invention, the convex portion of the erroneous insertion prevention portion has a function of preventing erroneous insertion of the mating connector into the insertion port, and an unintended object comes into contact with the shell connection portion to connect the shell. It also has a function to prevent the part from being damaged. In this way, by providing a function of protecting the shell connection portion to a part of the erroneous insertion prevention portion, it is not necessary to separately form a structure for protecting the shell connection portion, so that the structure of each shield connector is simplified. be able to.

According to the present invention, a structure for protecting the shell connection portion from unintended contact with an object and a structure for preventing erroneous insertion can be formed without complicating the shape of the connector.

It is a perspective view which shows the state which the shield connector of embodiment of this invention is seen from the upper right front. It is a perspective view which shows the state which the shield connector of embodiment of this invention is seen from the upper right rear. It is an exploded perspective view of the shield connector of the embodiment of this invention. It is an external view which shows the state which the shield connector of embodiment of this invention is seen from the front. It is sectional drawing which shows the state which the shield connector of embodiment of this invention is seen from the arrow VV direction in FIG. FIG. 5 is a cross-sectional view showing a state in which the front left side and the front right side of the shield connector according to the embodiment of the present invention are viewed from the direction of the arrow VI-VI in FIG. It is a perspective view which shows the front part of the shield shell in the shield connector of embodiment of this invention. It is explanatory drawing which shows the shield connector system of embodiment of this invention. It is a perspective view which shows the mating connector corresponding to the shield connector of embodiment of this invention. FIG. 5 is a cross-sectional view showing a state in which the mating connector corresponding to the shield connector of the embodiment of the present invention is viewed from the direction of arrow XX in FIG. FIG. 5 is a cross-sectional view showing a state in which the coaxial terminal of the mating connector corresponding to the shield connector of the embodiment of the present invention is viewed from the direction of arrow XI-XI in FIG.

(Shield connector)
FIG. 1 shows a state in which the shield connector 1 according to the embodiment of the present invention is viewed from the upper right front. FIG. 2 shows a state in which the shield connector 1 is viewed from the upper right rear. FIG. 3 shows a state in which the shield connector 1 is disassembled. FIG. 4 shows a state in which the shield connector 1 is viewed from the front. FIG. 5 shows a cross section of the shield connector 1 as viewed from the direction of arrow VV in FIG.

In the following embodiments, the direction in which the tip end side of the mating connector 71 (see FIG. 9) is inserted into the insertion port 27 of the shield connector 1 is referred to as the "connector insertion direction", and the opposite direction is referred to as the "connector removal direction". In FIG. 1 and the like, the arrow In indicates the connector insertion direction, and the arrow Out indicates the connector removal direction. Further, the front side of the shield connector 1 in the connector insertion direction is the front side, and the front side is the back side. Further, the side where the shield connector 1 is attached to the substrate is on the bottom, and the opposite side is on the top. As for the left and right, as shown in FIG. 4, the left and right when the shield connector 1 is viewed from the front are used as a reference. The arrows U, D, L, and R in FIG. 1 and the like indicate the upward direction, the downward direction, the left direction, and the right direction, respectively. Note that the front, back, top, bottom, left, and right are provided only for convenience of explanation.

In FIG. 1, the shield connector 1 is a resector pull connector of a type that is used by being attached to a substrate. A mating connector 71 (see FIG. 9), which is a plug connector, can be detachably connected to the shield connector 1. By connecting the mating connector 71 to the shield connector 1, the inner conductor 122 and the outer conductor 123 of the coaxial cable 121 attached to the mating connector 71 are electrically connected to the signal circuit and the ground circuit of the substrate, respectively.

As shown in FIG. 3, the shield connector 1 includes a coaxial terminal 11, a housing 21, and a shield shell 46.

As shown in FIG. 5, the coaxial terminal 11 includes a central conductor 12, an outer conductor 13, an insulating member 14, a first circuit connection portion 15, and a second circuit connection portion 16 as signal terminals. The central conductor 12 is formed of a conductive material in a rod shape or a linear shape. The outer conductor 13 is formed in a cylindrical shape by a conductive material, and is provided on the outer peripheral side of the central conductor 12. The insulating member 14 is formed of an insulating material and is provided between the central conductor 12 and the outer conductor 13. The first circuit connection portion 15 is a terminal for connecting the central conductor 12 to, for example, a signal circuit of a substrate, and is integrally formed with the central conductor 12 at the rear portion of the central conductor 12. The second circuit connection portion 16 is a terminal for connecting the outer conductor 13 to, for example, the ground circuit of the substrate, and is integrally formed with the outer conductor 13 at the rear portion of the outer conductor 13. Further, a locking convex portion 17 for locking the coaxial terminal 11 to the housing 21 is formed on the upper portion of the outer peripheral surface of the outer conductor 13.

The center conductor 12 and the first circuit connection portion 15 are formed by, for example, pressing a metal plate material, or cutting and bending a metal rod or a metal wire. Further, the outer conductor 13 and the pair of second circuit connection portions 16 are formed by, for example, pressing and bending a metal plate material.

The housing 21 is made of an insulating material. For example, the housing 21 is formed by resin molding. As shown in FIGS. 3 and 5, the housing 21 is formed in a cylindrical shape having a substantially quadrangular cross-sectional shape, the front end side is open, and the rear end side is closed. The housing 21 has an upper wall 22, a lower wall 23, a left wall 24, a right wall 25, and a rear wall 26. Further, the opening on the front end side of the housing 21 is an insertion port 27 into which the tip end side of the mating connector 71 is inserted. The tip end side of the mating connector 71 is fitted into the housing 21.

As shown in FIGS. 2 and 5, the rear portion of the housing 21 accommodates the front portion of the coaxial terminal 11. That is, the rear wall 26 of the housing 21 is formed with a terminal support hole 28 penetrating the rear wall 26, and the front portion of the coaxial terminal 11 is inserted into the terminal support hole 28. In the coaxial terminal 11, the locking convex portion 17 formed on the upper portion of the outer peripheral surface of the outer conductor 13 of the coaxial terminal 11 is locked to the locking recess formed on the inner peripheral surface of the terminal support hole 28. , Fixed in the terminal support hole 28.

Further, as shown in FIG. 4, an erroneous insertion prevention portion 31 for preventing erroneous insertion when inserting the mating connector into the insertion port 27 is provided at the front end portion of the housing 21 and the peripheral edge portion of the insertion port 27. It is provided. The erroneous insertion prevention portion 31 is formed by unevenness or the like formed on the peripheral edge portion of the insertion port 27.

Here, FIG. 8 shows a shield connector system 150, which will be described later. The shielded connector system 150 includes, for example, six shielded connectors 151-156. These shield connectors 151 to 156 are formed in the same manner except that the erroneous insertion prevention portion 31 and the slits 39L and 39R are different. Of the shielded connectors 151 to 156 shown in FIG. 8, the shielded connector 151 corresponds to the shielded connector 1 shown in FIG. The alternate long and short dash line in FIG. 8 shows the shape of the insertion port 27 when the erroneous insertion prevention portion 31 is not formed.

As shown in FIG. 4, the erroneous insertion prevention portion 31 of the shield connector 1 (151) has a pair of convex portions 32L, 32R, one square protruding portion 34, and one square rounded portion 35.

One convex portion 32L is a front end portion of the left wall 24 of the housing 21, is arranged at an intermediate portion in the vertical direction, and projects from the portion to the inside of the housing 21, that is, to the right. Further, as shown in FIG. 5, the left convex portion 32L is formed only on the front end portion of the left wall 24 of the housing 21.

As shown in FIG. 4, the other convex portion 32R is a front end portion of the right wall 25 of the housing 21, is arranged at an intermediate portion in the vertical direction, and projects from the portion to the inside of the housing 21, that is, to the left. .. Further, the convex portion 32R on the right side is formed only on the front end portion of the right wall 25 of the housing 21.

The positions of the left convex portion 32L and the right convex portion 32R in the erroneous insertion prevention portion 31 of the shield connector 1 (151) are different from each other in the vertical direction. Further, the convex portion 32L and the convex portion 32R have different shapes, specifically, lengths (widths) in the vertical direction.

The square protrusion 34 of the erroneous insertion prevention portion 31 of the shield connector 1 (151) is arranged on the upper part of the right wall 25 of the housing 21, and protrudes from the portion to the inside of the housing 21, that is, to the left. Further, the square protrusion 34 extends from the front end portion to the rear end portion of the housing 21.

The square rounded portion 35 in the erroneous insertion prevention portion 31 of the shield connector 1 (151) is arranged below the right wall 25 of the housing 21. The lower right corner of the insertion slot 27 is gently curved as compared with the lower left corner. That is, the lower right corner of the insertion slot 27 has a larger radius than the lower left corner. The portion with this large radius is the corner radius portion 35. Further, the square rounded portion 35 extends from the front end portion to the rear end portion of the housing 21.

Further, as shown in FIG. 3, locking notches 37 for locking and fixing the shield shell 46 to the housing 21 are formed on the left and right portions on the upper rear side of the housing 21, respectively. Further, although not shown, locking grooves for locking and fixing the shield shell 46 to the housing 21 are formed on the left and right portions on the lower rear side of the housing 21, respectively.

Further, as shown in FIG. 4, a slit 39L as an insertion hole for passing the left shell connection piece 53L is formed in the vertical intermediate portion of the left wall 24 of the housing 21. As shown in FIG. 5, the slit 39L extends from the rear end portion of the left wall 24 of the housing 21 to the position immediately before the convex portion 32L on the left side. Further, as shown in FIG. 4, the rear end portion 40L of the slit 39L extends the left end portion of the rear wall 26 of the housing 21 to the right. The slit 39L penetrates the left wall 24 of the housing 21 in the left-right direction, and the rear end portion 40L of the slit 39L penetrates the rear wall 26 of the housing 21 in the front-rear direction. The vertical length (width) of the slit 39L is equal to or greater than the vertical length (width) of the left convex portion 32L. Further, the amount of extension of the rear end portion 40L of the slit 39L to the right is equal to or greater than the amount of protrusion of the left convex portion 32L to the right.

Further, a slit 39R as an insertion hole for passing the shell connection piece 53R on the right side is formed in the vertical intermediate portion of the right wall 25 of the housing 21. Similar to the slit 39L on the left side, the slit 39R extends from the rear end portion of the right wall 25 of the housing 21 to the position immediately before the convex portion 32R on the right side. Further, as shown in FIG. 4, the rear end portion 40R of the slit 39R extends the right end portion of the rear wall 26 of the housing 21 to the left. The slit 39R penetrates the right wall 25 of the housing 21 in the left-right direction, and the rear end portion 40R of the slit 39R penetrates the rear wall 26 of the housing 21 in the front-rear direction. Further, the length (width) of the slit 39R in the vertical direction is equal to or larger than the length (width) of the convex portion 32R on the right side in the vertical direction. Further, the amount of extension of the rear end portion 40R of the slit 39R to the left is equal to or greater than the amount of protrusion of the right convex portion 32R to the left.

Further, as shown in FIG. 4, a beam portion insertion portion 43 into which the beam portion 89 of the lock mechanism 88 of the mating connector 71 is inserted is formed in the upper part of the housing 21. Further, as shown in FIG. 5, a lock hole 44 for locking the lock protrusion 90 of the lock mechanism 88 of the mating connector 71 is formed at the front end portion of the upper wall 22 of the housing 21.

The shield shell 46 is made of a conductive material. For example, the shield shell 46 is formed by pressing and bending a metal plate material. As shown in FIG. 3, the shield shell 46 has an upper plate portion 47, a left plate portion 48, and a right plate portion 49. As shown in FIG. 1, the shield shell 46 is attached to the outer peripheral side of the housing 21. The upper plate portion 47, the left plate portion 48, and the right plate portion 49 of the shield shell 46 completely cover the outer surface of the upper wall 22 of the housing 21, the outer surface of the left wall 24, and the outer surface of the right wall 25, respectively. The shield shell 46 mainly shields and removes high-frequency noise between the inner conductor 122 and the outer conductor 123 of the coaxial cable 121 attached to the mating connector 71 and the circuit of the board to which the shield connector 1 is attached. Has the function of

As shown in FIG. 3, upper locking portions 50 for locking and fixing the shield shell 46 to the locking notch 37 of the housing 21 are formed on the left and right portions on the upper rear side of the shield shell 46, respectively. Has been done. Further, lower locking portions 51 for locking and fixing the shield shell 46 in the locking groove of the housing 21 are formed on the left and right portions on the lower rear side of the shield shell 46, respectively ( Only the left side is shown).

Further, as shown in FIG. 3, the shield shell 46 is integrally formed with a plurality of board connection portions 52 for connecting the shield shell 46 to the ground circuit of the board. Specifically, six board connecting portions 52 are formed in the shield shell 46, and three of these board connecting portions 52 are the front portion of the lower portion of the left plate portion 48 of the shield shell 46 and the intermediate portion in the front-rear direction. It is arranged at the rear part and the rear part, respectively, and projects downward from the lower part of the left plate portion 48. The remaining three board connecting portions 52 are arranged at the front portion, the middle portion in the front-rear direction, and the rear portion of the lower portion of the right plate portion 49 of the shield shell 46, and project downward from the lower portion of the right plate portion 49, respectively.

Further, as shown in FIG. 3, the shield shell 46 has a pair of shells as a shell connection portion for electrically connecting the outer conductor 123 of the coaxial cable 121 attached to the mating connector 71 and the shield shell 46. Connection pieces 53L and 53R are formed. When the tip end side of the mating connector 71 is inserted into the shield connector 1, the pair of shell connector pieces 53L and 53R of the shield connector 1 come into contact with the pair of external connecting portions 84 (see FIG. 11) of the mating connector 71, respectively.

Of the pair of shell connection pieces 53L and 53R, one shell connection piece 53L is arranged at the middle portion in the vertical direction at the front end portion of the left plate portion 48 of the shield shell 46, and projects to the right from the portion. The left shell connection piece 53L projects inside the housing 21 through the slit 39L of the left wall 24 of the housing 21. The other shell connection piece 53R is arranged at an intermediate portion in the vertical direction at the front end portion of the right plate portion 49 of the shield shell 46, and projects to the left from the portion. The shell connection piece 53L on the right side projects to the inside of the housing 21 through the slit 39R of the right wall 25 of the housing 21. Further, as in the present embodiment, it is preferable that the pair of shell connection pieces 53L and 53R are arranged at the same position in the vertical direction. Further, as in the present embodiment, it is preferable that the positions of the pair of shell connection pieces 53L and 53R in the vertical direction are within the range in the vertical direction of the outer conductor 13. Further, in the present embodiment, the shell connection pieces 53L and 53R are integrally formed on the shield shell 46, respectively, and their respective shapes are set by bending, for example.

Further, as shown in FIG. 5, the left shell connection piece 53L is located behind the left convex portion 32L of the erroneous insertion prevention portion 31. That is, the arrangement of the convex portion 32L on the left side is set to be in front of the shell connection piece 53L on the left side. As a result, when the insertion port 27 of the housing 21 is viewed from the front thereof, as shown in FIG. 4, the convex portion 32L on the left side and the shell connection piece 53L on the left side overlap each other, that is, the shell connection piece 53L. Is located within the range of the convex portion 32L. Specifically, although the vertical length (width) of the left shell connection piece 53L is smaller than the vertical length (width) of the left convex portion 32L, the left side shell connection piece 53L is laterally long. The length (protrusion amount) is slightly larger than the left-right convex portion 32L length (protrusion amount) in the left-right direction. Therefore, when the insertion port 27 of the housing 21 is viewed from the front, the left portion of the shell connection piece 53L does not protrude from the left convex portion 32L, but the right end portion of the shell connection piece 53L is a small amount from the left convex portion 32L. It is sticking out.

Further, the shell connection piece 53R on the right side is located behind the convex portion 32R on the right side of the erroneous insertion prevention portion 31. That is, the arrangement of the convex portion 32R on the right side is set to be in front of the shell connection piece 53R on the right side. As a result, when the insertion port 27 of the housing 21 is viewed from the front thereof, the convex portion 32R on the right side and the shell connection piece 53R on the right side overlap each other, that is, the shell connection piece 53R is within the range of the convex portion 32R. Is located in. Specifically, although the vertical length (width) of the right shell connection piece 53R is smaller than the vertical length (width) of the right convex portion 32R, the right side shell connection piece 53R is laterally long. The length (protrusion amount) is slightly larger than the left-right length (protrusion amount) of the convex portion 32R on the right side. Therefore, when the insertion port 27 of the housing 21 is viewed from the front, the right portion of the shell connection piece 53R does not protrude from the right convex portion 32R, but the left end portion of the shell connection piece 53R is a small amount from the right convex portion 32R. It is sticking out.

By setting the positional relationship between the shell connection pieces 53L and 53R and the convex portions 32L and 32R of the erroneous insertion prevention portion 31 in this way, unintended objects such as other cables and tools can be moved from the insertion port 27 of the housing 21. It is possible to prevent the shell connecting pieces 53L and 53R from being damaged by entering the housing 21 and coming into contact with the shell connecting pieces 53L and 53R. On the other hand, when the tip end side of the mating connector 71 is inserted into the housing 21 from the insertion port 27 of the housing 21 of the shield connector 1, the shell connecting pieces 53L and 53R are brought into contact with the pair of external connecting portions 84 of the mating connector 71, respectively. Can be done.

Further, the shell connection piece 53L on the left side coincides with the slit 39L formed on the left wall 24 of the housing 21 in the vertical direction. Further, the vertical length (width) of the slit 39L is larger than the vertical length of the left shell connection piece 53L. Further, the amount of extension of the rear end portion 40L of the slit 39L to the right is larger than the length (protrusion amount) of the left shell connection piece 53L in the left-right direction. Similarly, the shell connection piece 53R on the right side coincides with the slit 39R formed on the right wall 25 of the housing 21 in the vertical direction. Further, the vertical length (width) of the slit 39R is larger than the vertical length of the shell connecting piece 53R on the right side. Further, the amount of extension of the rear end portion 40R of the slit 39R to the left is larger than the length (protrusion amount) of the shell connection piece 53R on the right side in the left-right direction.

By setting the positional relationship between the shell connection pieces 53L and 53R and the slits 39L and 36R of the housing 21 in this way, the shield shell 46 is moved from the rear to the front of the housing 21 along the housing 21 when the shield connector 1 is manufactured. When the shell connecting pieces 53L and 53R are slid and attached to the housing 21, the shell connecting pieces 53L and 53R can be smoothly moved to the front end portion of the housing 21 through the slits 39L and 39R.

Further, the pair of shell connection pieces 53L and 53R are arranged at the front end portions of the left plate portion 48 and the right plate portion 49 of the shield shell 46, respectively. As a result, the shell connection pieces 53L and 53R are close to each other of the pair of board connection portions 52 arranged at the lower front ends of the left plate portion 48 and the right plate portion 49 of the shield shell 46, respectively. Specifically, as shown in FIG. 5, the left shell connection piece 53L is arranged directly above the board connection portion 52 arranged at the lower front end portion of the left plate portion 48. Similarly, the shell connection piece 53R on the right side is arranged directly above the board connection portion 52 arranged at the lower front end portion of the right plate portion 49.

By bringing the positions of the shell connection pieces 53L and 53R and the positions of the board connection portion 52 close to each other, the electric path between the shell connection pieces 53L and 53R and the ground circuit of the board is shortened, so that the noise removal effect can be obtained. Can be enhanced.

Further, each shell connection piece 53L and 53R has a loop shape. Here, FIG. 6 shows a cross section of the shield connector 1 seen from the direction of the arrow VI-VI in FIG. 5 on the front left side and the front right side. As shown in FIG. 6, the left shell connection piece 53L passes through the slit 39L formed in the left wall 24 of the housing 21 from the left plate portion 48 of the shield shell 46 from left to right and projects inward of the housing 21. It curves backwards and then extends backwards. After that, the shell connection piece 53L passes through the slit 39L from the inside of the housing 21 from right to left while being curved to the left, and the tip end (rear end portion) of the shell connection piece 53L is the left plate portion of the shield shell 46. It is in contact with 48. Similarly, the shell connection piece 53R on the right side passes through the slit 39R formed in the right wall 25 of the housing 21 from the right plate portion 49 of the shield shell 46 from right to left, protrudes inward of the housing 21, and curves backward. After that, it extends backward. After that, the shell connection piece 53R passes through the slit 39R from the inside of the housing 21 from left to right while being curved to the right, and the tip end (rear end portion) of the shell connection piece 53R is the right plate portion of the shield shell 46. It is in contact with 49.

By setting the shapes of the shell connection pieces 53L and 53R in a loop shape in this way, the electric path between each external connection portion 84 of the mating connector 71 and the shield shell 46 can be shortened. That is, when the tip end side of the mating connector 71 is inserted into the shield connector 1, the left and right external connecting portions 84 of the mating connector 71 are portions extending in the front-rear direction in the left and right shell connecting pieces 53L and 53R. Contact each other (the portion indicated by the alternate long and short dash line in FIG. 6). As a result, between the left external connection portion 84 and the left plate portion 48 of the shield shell 46, the shell connection piece 53L is formed from the front side of the portion where the left external connection portion 84 and the left shell connection piece 53L are in contact with each other. After the portion where the electrical path to the left plate portion 48 of the shield shell 46 via the front end portion (see arrow KL1 in FIG. 6) and the left external connection portion 84 and the left shell connection piece 53L are in contact with each other. An electrical path (see arrow KL2 in FIG. 6) is formed from the side to the left plate portion 48 of the shield shell 46 via the rear end portion of the shell connection piece 53L. All of these electrical paths are close to the shortest distance between the left external connection 84 and the left plate 48 of the shield shell 46. By forming a plurality of short electric paths between the external connection portion 84 on the left side and the left plate portion 48 of the shield shell 46 in this way, the noise removal effect can be enhanced.

Similarly, when the tip end side of the mating connector 71 is inserted into the shield connector 1, the space between the right external connection portion 84 and the right plate portion 49 of the shield shell 46 is indicated by arrows KR1 and KR2 in FIG. Multiple electrical paths such as are formed. The length of each of these electric paths is close to the shortest distance between the external connection portion 84 on the right side and the right plate portion 49 of the shield shell 46. As a result, the noise removal effect can be enhanced.

Further, in the left plate portion 48 of the shield shell 46, the elastic displacement portion 55L that can be displaced to the left by elastically deforming by receiving an external force from the right to the portion where the rear end portion of the left shell connection piece 53L contacts. Is formed. Here, FIG. 7 shows the front part of the shield shell 46. As shown in FIG. 7, a horizontal hole 58 is formed at the front end of the left plate portion 48 of the shield shell 46, and an elastic displacement portion 55L is provided in the horizontal hole 58. The elastic displacement portion 55L is formed in a rod shape extending in the front-rear direction, the front end portion 56L (base end portion) of the elastic displacement portion 55L is supported by the left plate portion 48, and the rear end portion 57L (tip portion) of the elastic displacement portion 55L. ) Is a free end. As shown in FIG. 6, when the tip end side of the mating connector 71 is inserted into the shield connector 1, the left shell connecting piece 53L is pushed from right to left by the external connecting portion 84 on the left side of the mating connector 71, whereby. The rear end of the shell connector 53L pushes the rear end 57L of the elastic displacement portion 55L to the left. As a result, the rear end portion of the shell connection piece 53L and the rear end portion 57L of the elastic displacement portion 55L are both displaced to the left. Since not only the shell connection piece 53L but also the elastic displacement portion 55L is displaced, the displacement range of the shell connection piece 53L becomes large.

Similarly, in the right plate portion 49 of the shield shell 46, the portion where the rear end portion of the right shell connection piece 53R contacts is an elastic displacement portion that can be displaced to the right by elastically deforming by receiving an external force from the left. 55R is formed. As shown in FIG. 7, the elastic displacement portion 55R is provided in the lateral hole 58 formed at the front end portion of the right plate portion 49 of the shield shell 46. The front end portion 56R (base end portion) of the elastic displacement portion 55R is supported by the right plate portion 49, and the rear end portion 57R (tip portion) of the elastic displacement portion 55R is a free end. As shown in FIG. 6, when the tip end side of the mating connector 71 is inserted into the shield connector 1, the shell connecting piece 53R on the right side is pushed from left to right by the external connecting portion 84 on the right side of the mating connector 71, whereby. The rear end of the shell connector 53R pushes the rear end 57R of the elastic displacement portion 55R to the right. As a result, both the rear end portion of the shell connection piece 53R and the rear end portion 57R of the elastic displacement portion 55R are displaced to the right. Since not only the shell connection piece 53R but also the elastic displacement portion 55R is displaced, the displacement range of the shell connection piece 53R becomes large.

(Mother connector)
FIG. 9 shows the mating connector 71 corresponding to the shield connector 1. FIG. 10 shows a cross section of the mating connector 71 as viewed from the arrow XX direction in FIG. FIG. 11 shows a cross section of the coaxial terminal 11 of the mating connector 71 as viewed from the direction of arrow XI-XI in FIG.

The mating connector 71 is a plug connector that can be inserted into the shield connector 1 and is attached to the end of the coaxial cable 121. As shown in FIG. 10, the mating connector 71 includes a coaxial terminal 72, a conductive member 83, and a housing 86.

As shown in FIG. 11, the coaxial terminal 72 of the mating connector 71 has a center conductor 73, an outer conductor 76 provided on the outer peripheral side of the center conductor 73, and insulation provided between the center conductor 73 and the outer conductor 76. A member 81 is provided.

The center conductor 73 has a center contact portion 74 and an inner conductor barrel portion 75. In the present embodiment, the central contact portion 74 is a female type and is formed in a tubular shape. When the tip end side of the mating connector 71 is inserted into the shield connector 1, the center conductor 12 of the coaxial terminal 11 of the shield connector 1 is fitted into the center contact portion 74 in an elastic contact state. Further, the internal conductor 122 of the coaxial cable 121 is crimp-connected to the internal conductor barrel portion 75.

The outer conductor 76 has an outer fitting portion 77, an outer conductor barrel portion 78, and a coated barrel portion 79. When the tip end side of the mating connector 71 is inserted into the shield connector 1, the outer conductor 13 of the coaxial terminal 11 of the shield connector 1 is fitted into the outer fitting portion 77. Further, the outer conductor 123 of the coaxial cable 121 is crimp-connected to the outer conductor barrel portion 78. Further, the insulating coating 125 of the coaxial cable 121 is crimp-fixed to the coating barrel portion 79.

In the outer conductor 76 of the coaxial terminal 72 of the mating connector 71, the inner conductor 122 when the coaxial cable 121 is attached to the mating connector 71 is located above and below the portion where the inner conductor barrel portion 75 of the central conductor 73 is arranged. A tool inlet 80 for inserting a tool for crimping and connecting to the inner conductor barrel portion 75 is formed.

Further, in the outer conductor 76 of the coaxial terminal 72 of the mating connector 71, the conductive member 83 is attached to the place where the inner conductor barrel portion 75 of the central conductor 73 is arranged. The conductive member 83 covers the lower side, the left side, and the right side of the coaxial terminal 72. However, the conductive member 83 does not cover the upper side of the portion of the coaxial terminal 72. That is. The lower tool inlet 80 of the coaxial terminal 72 is closed by the conductive member 83, but the upper tool inlet 80 is not blocked by the conductive member 83.

Further, the conductive member 83 is in contact with the outer conductor 76 of the coaxial terminal 72 and is electrically connected. Further, on the left and right surfaces of the conductive member 83, a pair of external connecting portions 84 connected to the shell connecting pieces 53L and 53R of the shield connector 1 are formed when the tip end side of the mating connector 71 is inserted into the shield connector 1, respectively. Has been done.

As shown in FIGS. 8 and 10, the housing 86 of the mating connector 71 is formed of an insulating material such as resin to have a substantially quadrangular cross-sectional shape and a tubular shape with both ends open. A coaxial terminal 72 is housed in the housing 86. Further, as shown in FIG. 9, connection holes 87 are formed on the left wall and the right wall of the housing 86, respectively, and external connection portions 84 are arranged at positions corresponding to the connection holes 87 in the housing 86, respectively. .. As a result, when the tip end side of the mating connector 71 is inserted into the shield connector 1, the shell connection pieces 53L and 53R of the shield connector 1 can enter the connection hole 87 and come into contact with the external connection portion 84.

Further, the housing 86 of the mating connector 71 is provided with a lock mechanism 88 for preventing the mating connector 71 from coming off from the shield connector 1. The lock mechanism 88 includes a beam portion 89, a lock protrusion 90, and the like.

Further, the tip end side of the housing 86 of the mating connector 71 has a shape that matches the shape of the erroneous insertion prevention portion 31 of the housing 21 of the shield connector 1.

When the tip end side of the mating connector 71 is inserted from the insertion port 27 of the shield connector 1 to the depth of the housing 21 of the shield connector 1, the lock protrusion 90 of the lock mechanism 88 of the mating connector 71 enters the lock hole 44 of the shield connector 1. As a result, the mating connector 71 is fixed to the shield connector 1. In this state, the center conductor 12 of the coaxial terminal 11 of the shield connector 1 enters the center contact portion 74 of the center conductor 73 of the coaxial terminal 72 of the mating connector 71, and the center conductors 12 and 73 are electrically connected to each other. To. As a result, the inner conductor 122 of the coaxial cable 121 is connected to, for example, the signal circuit of the substrate. Further, the outer conductor 13 of the coaxial terminal 11 of the shield connector 1 enters the outer fitting portion 77 of the outer conductor 76 of the coaxial terminal 72 of the mating connector 71, and these outer conductors 13 and 76 are electrically connected to each other. .. As a result, the outer conductor 123 of the coaxial cable 121 is connected to the ground circuit of the substrate.

Further, in the state where the mating connector 71 is fixed to the shield connector 1 in this way, the shell connecting pieces 53L and 53R of the shield shell 46 of the shield connector 1 are connected to the pair of external connecting portions 84 of the conductive member 83 of the mating connector 71. Each is electrically connected. As a result, the outer conductor 123 of the coaxial cable 121 is connected to the ground circuit of the substrate via the shield shell 46. Then, the tip end side of the coaxial terminal 72 of the mating connector 71 enters the shield shell 46 of the shield connector 1, and the upper side, the left side, and the right side of the portion are covered by the shield shell 46. As a result, the connection portion between the mating connector 71 and the shield connector 1 is widely surrounded by the shield on which the ground potential is set. Thereby, the high frequency noise emitted from the inner conductor 122 of the coaxial cable 121, the center conductor 73 of the mating connector 71, or the center conductor 12 of the shield connector 1 can be removed by the shield shell 46. Further, the shield shell 46 can suppress external high-frequency noise from being mixed into the inner conductor 122 of the coaxial cable 121, the center conductor 73 of the mating connector 71, or the center conductor 12 of the shield connector 1.

In particular, in the mating connector 71, the range covered by the shield shell 46 includes a portion of the outer conductor 76 of the coaxial terminal 72 of the mating connector 71 in which the inner conductor barrel portion 75 of the central conductor 73 is arranged. .. That is, the range covered by the shield shell 46 includes the tool insertion port 80 opened at the upper part of the outer conductor 76 of the coaxial terminal 72 of the mating connector 71. Therefore, the tool inlet 80 is electrically blocked by the shield shell 46. As a result, the shield shell 46 can remove high-frequency noise emitted from the inner conductor barrel portion 75 of the central conductor 73 of the mating connector 71 and its vicinity via the tool inlet 80. Further, the shield shell 46 can suppress external high-frequency noise from being mixed into the central conductor 73 of the mating connector 71 via the tool inlet 80.

(Shielded connector system)
FIG. 8 shows a shielded connector system 150 according to an embodiment of the present invention. As shown in FIG. 8, the shielded connector system 150 includes a plurality of (for example, six) shielded connectors 151 to 156. These shield connectors 151 to 156 are formed in the same manner except that the erroneous insertion prevention portion 31 and the slits 39L and 39R are different.

Specifically, the erroneous insertion prevention portions 31 of the shield connectors 151 to 156 are (a) the position of the left convex portion 32L in the vertical direction, (b) the position of the right convex portion 32R in the vertical direction, and (c) the left side. The vertical length of the convex portion 32L, (d) the vertical length of the convex portion 32R on the right side, (e) the presence or absence or position of the angular protruding portion 34, or (f) the presence or absence or position of the angular rounded portion 35. Is different for each shield connector 151-156. In the shield connectors 151 to 156, there may be no two or more shield connectors having the same erroneous insertion prevention unit 31 in all of the above (a) to (f).

However, in all the shield connectors 151 to 156 included in the shield connector system 150, when the insertion openings 27 of the housings 21 of the respective shield connectors 151 to 156 are viewed from the front thereof, a pair of protrusions of the erroneous insertion prevention portion 31 The pair of shell connecting pieces 53L and 53R of the portions 32L and 32R and the shield shell 46 overlap each other, respectively. That is, in all the shield connectors 151 to 156, the convex portions 32L and 32R are arranged immediately before the shell connection pieces 53L and 53R.

More specifically, the shield shell 46 is common to all shield connectors 151-156 included in the shield connector system 150. Therefore, the positions of the shell connection pieces 53L on the left side are the same in each of the shield connectors 151 to 156, and the positions of the shell connection pieces 53R on the right side are also the same in each of the shield connectors 151 to 156. The vertical position of the convex portion 32L on the left side may be different between the shield connectors 151 to 156, but the vertical position of each convex portion 32L is such that the insertion port 27 of the housing 21 of the shield connectors 151 to 156 is inserted. When viewed from the front of them, the convex portion 32L and the shell connecting piece 53L are set to overlap each other. That is, when the vertical positions of the convex portions 32L are different from each other, the vertical positions thereof are different from each other while satisfying the condition that the convex portion 32L and the shell connecting piece 53L overlap each other. Further, the vertical length of the convex portion 32L on the left side may differ between the shield connectors 151 to 156, but the vertical length of each convex portion 32L is the length of the housing 21 of the shield connectors 151 to 156. When the insertion openings 27 are viewed from the front of them, the convex portion 32L and the shell connection piece 53L are set so as to overlap each other. That is, when the vertical lengths of the convex portions 32L are different from each other, the vertical lengths thereof are different from each other while satisfying the condition that the convex portions 32L and the shell connecting piece 53L overlap each other. .. Further, although the vertical position or the vertical length of the convex portion 32R on the right side may differ between the shield connectors 151 to 156, the vertical position and the vertical length of the convex portion 32R are shielded. When the insertion ports 27 of the housings 21 of the connectors 151 to 156 are viewed from the front thereof, the convex portion 32R and the shell connection piece 53R are set so as to overlap each other.

Further, in each of the shield connectors 151 to 156, the vertical position and the vertical length of the slit 39L formed on the left wall 24 of the housing 21 are the vertical position and the vertical length of the left convex portion 32L. It is set accordingly. Therefore, if the vertical position or vertical length of the left convex portion 32L is different between the shield connectors 151 to 156, the vertical position or vertical length of the slit 39L is correspondingly different. different. Similarly, if the position of the convex portion 32R on the right side in the vertical direction or the length in the vertical direction is different between the shield connectors 151 to 156, the slit 39R formed in the right wall 25 of the housing 21 corresponds to the difference. The position in the vertical direction or the length in the vertical direction is different.

However, as described above, the vertical length of the left slit 39L is equal to or greater than the vertical length of the left convex portion 32L, and the vertical length of the right slit 39R is that of the right convex portion 32R. It is longer than the length in the vertical direction. Therefore, the vertical position and length of the left convex portion 32L are set so that the convex portion 32L and the shell connecting piece 53L overlap each other, and the vertical position and length of the right convex portion 32R are set. When the convex portion 32R and the shell connecting piece 53R are set to overlap each other, the shield shell 46 is slid from the rear to the front of the housing 21 along the housing 21 when the shield connector 1 is manufactured. The effect that the shell connector pieces 53L and 53R can be smoothly moved to the front end portion of the housing 21 through the slits 39L and 39R is maintained.

As described above, according to the shield connector 1 and the shield connector system 150 of the embodiment of the present invention, since the shield connector 1 (151 to 156) is provided with the erroneous insertion prevention portion 31, the shield connector 1 (151 to 151). Even if an attempt is made to insert a mating connector that does not correspond to the shield connector into 156), the convex portions 32L, 32R, the square protruding portion 34 or the square rounded portion 35 of the shield connector collide with the tip portion of the mating connector and are inserted. Can't.

Further, in any of the shield connectors 1 (151 to 156) included in the shield connector system 150, the pair of convex portions 32L and 32R of the erroneous insertion prevention portion 31 are arranged immediately before the pair of shell connection pieces 53L and 53R, respectively. When the insertion port of the housing 21 is viewed from the front thereof, the pair of convex portions 32L and 32R and the pair of shell connector pieces 53L and 53R overlap each other. Therefore, the convex portions 32L and 32R can prevent an unintended object from coming into contact with the shell connecting pieces 53L and 53R and damaging the shell connecting pieces 53L and 53R.

As described above, the pair of convex portions 32L and 32R of the erroneous insertion prevention portion 31 of the shield connector 1 (151 to 156) have a function of preventing erroneous insertion of the mating connector into the shield connector 1 (151 to 156). It also has a function of protecting the shell connector pieces 53L and 53R from unintended contact with an object. Therefore, since it is not necessary to separately form a structure for protecting the shell connector pieces 53L and 53R on the shield connector 1 (151 to 156), the structure of the shield connector 1 (151 to 156) can be simplified. As a result, the manufacturing cost of the shielded connector 1 and the shielded connector system 150 can be reduced.

Further, in the shield connector 1 of the embodiment of the present invention, the shell connector pieces 53L and 53R are arranged at the front end portion of the housing 21, and two of the six board connection portions 52 of the shield shell 46 are the front end portion of the housing 21. It is arranged in the department. Therefore, the distance between the shell connection pieces 53L and 53R and the substrate connection portion 52 is small, and the electric path between them is short. As a result, the noise removal effect can be enhanced.

Further, since the shell connection pieces 53L and 53R and the two board connection portions 52 are arranged at the front end portions of the housing 21, as can be seen from FIG. 10, between the shell connection pieces 53L and 53R and the board connection portion 52. Is formed at a position close to the front end portion of the shield connector 1. As a result, when the mating connector 71 is connected to the shield connector 1 and fixed by the lock mechanism 88, the electric path between the shell connecting pieces 53L and 53R and the board connecting portion 52 becomes the coaxial terminal 72 of the mating connector 71. The outer conductor 76 is arranged at a position corresponding to the location where the inner conductor barrel portion 75 of the center conductor 73 is arranged (the portion where the tool insertion port 80 is formed), or at a position closer to the coaxial cable 121 than that. To. Therefore, the high-frequency noise transmitted to the connection portion between the mating connector 71 and the shield connector 1 via the coaxial cable 121 is mixed into the inner conductor barrel portion 75 of the central conductor 73 via the tool insertion port 80. It can be removed by an electric path formed from a pair of external connection portions 84, shell connection pieces 53L and 53R, the above two substrate connection portions 52, and a ground circuit of the substrate.

Further, in the shield connector 1 of the embodiment of the present invention, as shown in FIG. 6, the shell connection pieces 53L and 53R are formed in a loop shape. As a result, the tip end side of the mating connector 71 is connected to the shield connector 1, and with both connectors fixed by the lock mechanism 88, the electrical path between each external connection portion 84 of the mating connector 71 and the shield shell 46 of the shield connector 1. Can be shortened. As a result, the noise removal effect can be enhanced.

Further, in the shield connector 1 of the embodiment of the present invention, as shown in FIG. 7, elastic displacement portions 55L and 55R are formed on the shield shell 46, and the tip end side of the mating connector 71 is the insertion port 27 of the shield connector 1. When inserted, the elastic displacement portions 55L and 55R are elastically deformed in the outward direction of the housing 21 (shield shell 46) together with the shell connector pieces 53L and 53R. As a result, the range in which the shell connection pieces 53L and 53R can be elastically deformed can be expanded, so that an appropriate elastic force of the shell connection pieces 53L and 53R can be easily set. Further, it is possible to prevent the shell connection pieces 53L and 53R from being crushed and damaged between the external connection portion 84 of the mating connector 71 and the shield shell 46.

Further, in the shield connector 1 of the embodiment of the present invention, the vertical length of the slit 39L formed on the left wall 24 of the housing 21 is equal to or longer than the vertical length of the left convex portion 32L, and the slit. The amount of extension of the rear end portion 40L of 39L to the right is equal to or greater than the amount of protrusion of the left convex portion 32L to the right. Further, the vertical length of the slit 39R formed on the right wall 25 of the housing 21 is equal to or longer than the vertical length of the right convex portion 32R, and the rear end portion 40R of the slit 39R is to the right. The amount of extension is equal to or greater than the amount of protrusion of the right convex portion 32R to the right. As a result, when the housing 21 is formed by injection molding using resin, it can be molded with a mold that can move in the front-rear direction so as to match the shape of the housing 21. Therefore, the structure of the mold can be simplified, and the manufacturing cost of the shield connector 1 can be reduced.

Further, in the shield connector 1 of the embodiment of the present invention, the erroneous insertion prevention portion 31 is formed by forming the corner radius portion 35 at at least one corner of the lower side of the insertion port 27 of the housing 21. There is. When the shield connector 1 is fixed to the substrate, the stress in the lower portion of the housing 21 tends to increase when an external force is applied to the shield connector 1. Therefore, by forming the square rounded portion 35 on the lower portion of the housing 21, the portion of the housing 21 where the stress tends to be large can be reinforced by the square rounded portion 35. Therefore, the strength of the housing 21 can be increased.

Further, the shield connector 1 of the embodiment of the present invention can satisfactorily exhibit the noise removal effect of the shield shell 46 by applying it to, for example, transmitting a signal having a frequency of several hundred Hz to several GHz, and the signal. The quality of transmission can be improved.

In the above-described embodiment, the case where the shell connection pieces 53L and 53R are provided on the left plate portion 48 and the right plate portion 49 of the shield shell 46, respectively, has been given as an example, but the present invention is not limited to this, and the shield shell is not limited to this. The shell connection piece may be provided only on one of the left plate portion 48 and the right plate portion 49 of 46.

Further, in the above-described embodiment, the case where a pair of left and right convex portions 32L and 32R are provided on the erroneous insertion prevention portion 31 has been given as an example, but any one of the left plate portion 48 and the right plate portion 49 of the shield shell 46. When the shell connection piece is provided only on one side, the convex portion of the erroneous insertion prevention portion is provided only on the side wall of the left wall 24 and the right wall 25 of the housing 21 where the shell connection piece is provided. You may.

Further, in the above-described embodiment, the coaxial terminal 11 is provided on the shield connector 1, but other types of signal terminals may be provided on the shield connector.

Further, in the above-described embodiment, the case where the shell connection pieces 53L and 53R are arranged immediately after the convex portions 32L and 32R of the erroneous insertion prevention portion 31 has been given as an example, but the positions of the shell connection pieces 53L and 53R are erroneous. If it is behind the convex portions 32L and 32R of the insertion prevention portion 31, it does not have to be immediately after.

Further, the shape of the erroneous insertion prevention portion 31 is as long as the condition that the convex portions 32L and 32R and the shell connection pieces 53L and 53R are overlapped with each other when the insertion port 27 of the housing 21 is viewed from the front thereof is satisfied. Various shapes can be adopted.

Further, the number of shield connectors constituting the shield connector system 150 may be two or more.

Further, the present invention can be appropriately modified within the scope of claims and within a range not contrary to the gist or idea of the invention that can be read from the entire specification, and the shield connector and the shield connector system accompanied by such modification are also the present invention. It is included in the technical idea of.

1 Shield connector 11 Coaxial terminal 12 Center conductor (signal terminal)
13 Outer conductor 14 Insulation member 21 Housing 24 Left wall 25 Right wall 27 Insertion port 31 Incorrect insertion prevention part 32L, 32R Convex part 35 Square round part 39L, 39R Slit (insertion hole)
46 Shield shell 47 Top plate 48 Left plate 49 Right plate 52 Board connection 53L, 53R Shell connection piece (shell connection)
55L, 55R Elastic displacement part 150 Shielded connector system 151-156 Shielded connector

Claims (7)

Signal terminal and
A housing that is formed in a tubular shape by an insulating material, an insertion port into which a mating connector is inserted is formed on the front end side, and the signal terminal is housed in the rear part.
A shield shell formed of a conductive material and having an upper plate portion covering the outer surface of the upper wall of the housing and left and right side plate portions covering the outer surfaces of the left and right side walls of the housing, respectively.
One side plate portion of the left and right side plate portions of the shield shell is passed through an insertion hole formed in one of the left and right side wall portions of the housing corresponding to the one side plate portion, and is inside the housing. A shell connection that protrudes from the housing is provided.
The front end portion of the housing and the peripheral edge portion of the insertion port are provided with an erroneous insertion prevention portion for preventing erroneous insertion of the mating connector into the insertion port.
The erroneous insertion prevention portion has a convex portion that protrudes inward of the housing from the front end portion of the one side wall of the housing.
The convex portion is arranged in front of the shell connection portion.
A shield connector characterized in that the convex portion and the shell connecting portion overlap each other when the insertion port of the housing is viewed from the front thereof. The shield shell is provided with a board connection portion for connecting the shield shell to the ground circuit of the board, and both the shell connection portion and the board connection portion are arranged at the front end portion of the housing. The shield connector according to claim 1. The shell connector is curved after or while projecting inward of the housing from the one side plate portion of the shield shell through the insertion hole formed in the one side wall of the housing, and further, the housing. The claim is characterized in that the tip portion of the shell connecting portion is in contact with the one side plate portion of the shield shell through the insertion hole formed in the one side wall of the housing from the inside of the housing. The shield connector according to 1 or 2. The portion of the one side plate of the shield shell that is in contact with the tip of the shell connection can be displaced to the outside of the shield shell by elastically deforming by receiving an external force from the inside of the shield shell. The shield connector according to claim 3, wherein an elastic displacement portion is formed. The insertion hole formed in the one side wall of the housing is a slit extending from the rear end portion of the one side wall of the housing until it reaches the convex portion, and the vertical length of the slit is the convex portion. The shield connector according to any one of claims 1 to 4, wherein the length of the portion is longer than the length in the vertical direction. The shield connector according to any one of claims 1 to 5, wherein a part of the erroneous insertion prevention portion is formed by forming a radius at a lower corner portion of the insertion port. A shielded connector system with multiple shielded connectors
Each of the shield connectors is
Signal terminal and
A housing that is formed in a tubular shape by an insulating material, an insertion port into which a mating connector is inserted is formed on the front end side, and the signal terminal is housed in the rear part.
A shield shell formed of a conductive material and having an upper plate portion covering the outer surface of the upper wall of the housing and left and right side plate portions covering the outer surfaces of the left and right side walls of the housing, respectively.
An insertion hole formed in one of the left and right side plate portions of the shield shell of each of the shield connectors, which corresponds to the one side plate portion of the left and right side walls of the housing, is passed through the side plate portion. A shell connection is provided that protrudes inside the housing.
The front end of the housing of each of the shield connectors and the peripheral edge of the insertion port is provided with an erroneous insertion prevention portion for preventing erroneous insertion of the mating connector into the insertion port. ,
The erroneous insertion prevention portion of each of the shield connectors has a convex portion protruding inward of the housing from the front end portion of the one side wall of the housing.
The convex portion of each shield connector is arranged in front of the shell connection portion.
When the insertion port of each of the housings of the plurality of shield connectors is viewed from the front thereof, even if the position or shape of the convex portion is different among the plurality of shield connectors, any of the plurality of shield connectors. The shield connector system is also characterized in that the convex portion and the shell connecting portion overlap each other.

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