JP2008305566A - Electric connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connector capable of positioning and preventing the deflection of a contact by simple structure, and not causing a connection failure by moisture condensation. <P>SOLUTION: In the electric connector having a plurality of contacts 12, a front insert 14, a rear insert 16, a holding means 22, a shell 18, and a retainer ring 24, a bush member 20 having an insert part 202 into which a connection part 125 of the contact 12 is inserted is installed, the bush member 20 is mounted to a recessed part 162 of the rear insert 16, an engaging part 164 projecting outward is formed at the tip of a projecting piece 163 of the rear insert 16, a locking part 143 projecting inward is formed in an insertion recessed part 142 of the font insert 14, and by making the engaging part 164 engaged with the locking part 143, the contact 12 is positioned and the deflection of the contact 12 is prevented, and moreover, countermeasures against a creepage distance are taken, and the prevention of the connection failure caused by the moisture condensation is also performed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to an electrical connector with a cable used for industrial equipment, electronic / electrical equipment, etc., and particularly to a structure in which contact positioning and vibration prevention can be prevented with a simple structure and connection failure due to condensation does not occur. .

A conventional electrical connector will be described. The electrical connector has a contact portion that contacts at least one end side with a mating connector, a first collar portion and a second collar portion for positioning, and a hook portion located between the first collar portion and the second collar portion. And a plurality of contacts having a connecting portion for connecting to the cable at the other end, an insertion hole in which the contacts are arranged and held, a front insert having an insertion recess connected to the insertion hole on the cable connecting side, and the front insert A rear insert having an insertion hole in which the contacts are arranged and held, a recess into which the second flange portion of the contact enters, a rear insert having a protruding piece into the insertion recess of the front insert, and the contact The holding means for holding the rear insert, the engaging means for inserting the mating connector and the mating connector, and the housing are fixed to the housing. It comprises a shell having a flange portion, and a retainer ring for clamping the rear insert and the front insert into the shell.
Examples of electrical connectors with cables include Patent Document 1 (Japanese Patent Laid-Open No. 2005-285333) and Patent Document 2 (Japanese Patent Laid-Open No. 10-223297) proposed by the present applicant.
According to the summary of Japanese Patent Application Laid-Open No. 2005-285333 of Patent Document 1, it is an object of the present invention to provide a single waterproof connector having a rear release structure that can be easily assembled even when the pitch is narrowed and the cost is not increased. A retainer ring 70 for fixing the shell 60, the intermediate insert 30, the front insert 20, the rear insert 40, and the three inserts 20, 30, 40 to the receptacle shell 60 in the order of the front 20, the intermediate 30, and the rear 40, and a rear release structure insert In the single waterproof crimp connector 10 having the crimp pin contact 50 to be mounted, at least one engagement means is provided on the intermediate insert 30 side or the front insert 20 side of the front insert 20 or the intermediate insert 30, Alone waterproof connector structure providing a locking means in a position corresponding to the engaging means of the front insert 20 or the intermediate insert 30 is disclosed in concert 30 or front insert 20. According to the summary of Japanese Patent Laid-Open No. 10-223297 of Patent Document 2, an object of the present invention is to provide a single waterproof crimp connector in which a crimp pin contact can be reliably and easily attached, and a receptacle shell 1 and a plurality of crimp pin contacts 15 are provided. An intermediate insert 12 made of an insulating material having an insertion hole, and a front insert 13 having insertion holes for the same number of crimp pin contacts 15 as the intermediate insert 12 and being fixed to the intermediate insert 12 and integrally formed with the intermediate insert 12. And the rear insert 14 made of an insulating material having the same number of crimp pin contact insertion holes as the intermediate insert 12 and provided with contact retention 14b in the insertion hole, the intermediate insert 12, the front insert 13 and the rear insert 14 The reception A retainer ring 6 for fixing the Kurusheru 1, alone waterproof crimp connector structure and a crimp pin contacts to be installed in the insertion hole of said each insert is disclosed.

An electrical connector with a cable used for industrial equipment, electronic / electrical equipment, etc. has a clearance between the contact and the recess of the rear insert due to the structure of the contact connecting portion. There has been a problem that it swings around (the insertion hole portion of the front insert) as a fulcrum, which may lead to breakage or poor connection of the contact when mated with the mating connector.
In addition, when condensation occurs, there is a demand for applying silicon between the front insert and the rear insert so as not to cause a connection failure. However, applying silicon has a problem in that it takes man-hours and is very laborious and leads to an increase in cost.
Furthermore, although the holding means for holding the contact to the rear insert is a separate part, the separate part leads to an increase in assembly man-hours and management man-hours.
Patent Document 1 and Patent Document 2 described above have different purposes, and a structure like the document does not lead to the solution of the problem.

  The present invention has been made in view of such conventional problems, and it is an object of the present invention to provide an electrical connector that can perform contact positioning and shake prevention with a simple structure and does not cause poor connection due to condensation.

  The object is the electrical connector 10 which is attached to and detached from the mating connector and connected to the cable 60 as in the first aspect, and the contact portion 121 which contacts the mating connector on one end side and the positioning first A plurality of contacts having a hook part 123, a second hook part 124, a hook part 123 positioned between the first hook part 122 and the second hook part 124, and a connection part 125 connected to the cable 60 at the other end. 12, a front insert 14 having an insertion hole 141 in which the contacts 12 are arranged and held, an insertion recess 142 connected to the insertion hole 141 on the cable connection side, and a cable connection side of the front insert 14. An insertion hole 161 in which the contacts 12 are arranged and held, a recess 162 in which the second flange 124 of the contact 12 is inserted, and the front inserter 14, the rear insert 16 having the protruding piece 163 that enters the insertion recess 142, the holding means 22 for holding the contact 12 to the rear insert 16, and the engagement port 40 into which the mating connector is inserted and the mating connector. In the electrical connector, comprising the joint 182, a shell 18 having a flange portion 181 for fixing to the housing 80, and a retainer ring 24 for clamping the front insert 14 and the rear insert 16 to the shell 18, the contact 12 The bushing member 20 having the insertion portion 202 into which the connecting portion 125 is inserted is provided, and the bushing member 20 is mounted in the concave portion 162 of the rear insert 16 to prevent the contact 12 from being positioned and shaken. It can be achieved by an electrical connector characterized by

  In addition, the object is the electrical connector 10 which is attached to and detached from the mating connector and connected to the cable 60 as in claim 2, and for positioning the contact portion 121 which contacts the mating connector on one end side. A plurality of first hook parts 122 and second hook parts 124, a hook part 123 positioned between the first hook part 122 and the second hook part 124, and a connecting part 125 connected to the cable 60 at the other end. The contact 12, the insertion hole 141 in which the contact 12 is arranged and held, the front insert 14 having the insertion recess 142 connected to the insertion hole 141 on the cable connection side, and the cable connection side of the front insert 14. An insertion hole 161 in which the contacts 12 are arranged and held, a recess 162 in which the second flange 124 of the contact 12 is inserted, and the front A rear insert 16 having a projecting piece 163 that enters the insertion recess 142 of the seat 14, a holding means 22 for holding the contact 12 to the rear insert 16, a fitting port 40 into which the mating connector is inserted, and a mating connector An electrical connector comprising: a shell 18 having an engaging means 182 and a flange portion 181 for fixing to a housing 80; and a retainer ring 24 for holding the front insert 14 and the rear insert 16 between the shell 18; An engaging portion 164 that protrudes outward is provided at the tip of the protruding piece 163 of the insert 16, and an engaging portion 143 that protrudes inward is provided in the insertion concave portion 142 of the front insert 14, and the engaging portion 164 and the engaging portion are provided. 143 is engaged to prevent creepage distance and prevent poor connection due to condensation. It can be achieved by an electrical connector to be.

In the electrical connector according to claim 3, the bush member 20 is provided with the slit 201 connected to the insertion portion 202, and the bush member 20 has elasticity, so that the bushing member 20 is easily held by the connection portion 125 of the contact 12. The electrical connector 10 according to claim 1.
Moreover, the electrical connector 10 according to claim 4 is the electrical connector 10 according to claim 2, wherein tips of the engaging portion 164 and the locking portion 143 are substantially hemispherical.
Furthermore, the electrical connector 10 according to claim 5 is the electrical connector 10 according to claim 1, 2, 3, or 4, wherein the holding means 22 is integrated with the rear insert 16.

The electrical connector 10 according to claim 6 is characterized in that the holding means 22 is provided with a plurality of comb wings 221 having a substantially U-shape.
7. The electrical connector 10 according to claim 7, wherein the flange portion 181 is rectangular and the center of the fitting port 40 is shifted from the center of the flange portion 181. Or the electrical connector 10 according to claim 1.

As is clear from the above description, according to the electrical connector 10 connected to the cable 40, the following excellent remarkable effects can be obtained.
(1) The electrical connector 10 according to the first aspect is an electrical connector 10 which is attached to and detached from the mating connector and to which the cable 60 is connected, and for positioning the contact portion 121 which contacts the mating connector on one end side. A plurality of first hook parts 122 and second hook parts 124, a hook part 123 positioned between the first hook part 122 and the second hook part 124, and a connecting part 125 connected to the cable 60 at the other end. The contact 12, the insertion hole 141 in which the contact 12 is arranged and held, the front insert 14 having the insertion recess 142 connected to the insertion hole 141 on the cable connection side, and the cable connection side of the front insert 14. The insertion holes 161 in which the contacts 12 are arranged and held, the recesses 162 in which the second flanges 124 of the contacts 12 are inserted, and the freon. A rear insert 16 having a projecting piece 163 that enters the insertion recess 142 of the insert 14, a holding means 22 for holding the contact 12 to the rear insert 16, a fitting port 40 into which the mating connector is inserted, and a mating connector An electrical connector comprising: a shell 18 having a flange portion 181 for fixing to an engagement means 182 and a housing 80; and a retainer ring 24 for holding the front insert 14 and the rear insert 16 between the shell 18; The bush member 20 having the insertion portion 202 into which the twelve connection portions 125 are inserted is provided, and the bush member 20 is mounted in the concave portion 162 of the rear insert 16 to prevent the contact 12 from being positioned and shaken. The electrical connector is characterized by , Without said contact 12 swings, it is possible to reliably be positioned, without damage to the contact 12, nor lead to connection failure.
(2) The electrical connector 10 according to claim 2 is an electrical connector 10 that is attached to and detached from the mating connector and to which the cable 60 is connected, and for positioning the contact portion 121 that contacts the mating connector on one end side. A plurality of first hook parts 122 and second hook parts 124, a hook part 123 positioned between the first hook part 122 and the second hook part 124, and a connecting part 125 connected to the cable 60 at the other end. The contact 12, the insertion hole 141 in which the contact 12 is arranged and held, the front insert 14 having the insertion recess 142 connected to the insertion hole 141 on the cable connection side, and the cable connection side of the front insert 14. The insertion holes 161 in which the contacts 12 are arranged and held, the recesses 162 in which the second flanges 124 of the contacts 12 are inserted, and the freon. A rear insert 16 having a projecting piece 163 that enters the insertion recess 142 of the insert 14, a holding means 22 for holding the contact 12 to the rear insert 16, a fitting port 40 into which the mating connector is inserted, and a mating connector An electrical connector comprising: a shell 18 having a flange portion 181 for fixing to an engagement means 182 and a housing 80; and a retainer ring 24 for holding the front insert 14 and the rear insert 16 between the shell 18; An engaging portion 164 that protrudes outward is provided at the tip of the protruding piece 163 of the insert 16, and an engaging portion 143 that protrudes inward is provided in the insertion concave portion 142 of the front insert 14, and the engaging portion 164 and the engaging portion are provided. Engage 143 to prevent creepage distance and prevent poor connection due to condensation Since the electrical connector, wherein, creepage distance can be ensured even with a simple structure, by reliable seal can prevent poor connection due to dew condensation.
(3) In the electrical connector 10 according to claim 3, the bush member 20 is provided with the slit 201 connected to the insertion portion 202, and the bush member 20 has elasticity, and is held by the connection portion 125 of the contact 12. The electrical connector 10 according to claim 1, wherein the bush member 20 can be easily held on the contact 12, the contact does not swing, and positioning can be ensured. There is no breakage of the contact 12 and no connection failure occurs.
(4) Since the electrical connector 10 according to the fourth aspect is the electrical connector 10 according to the second aspect, the distal ends of the engaging portion 164 and the locking portion 143 are substantially hemispherical. A reliable seal can be made and connection failure due to condensation can be prevented.
(5) Since the electric connector 10 according to the fifth aspect is the electric connector 10 according to the first, second, third, or fourth aspect, the holding means 22 is integrated with the rear insert 16. Easy to assemble, easy to manage, and no cost increase.
(6) Since the electrical connector 10 according to claim 6 is the electrical connector 10 according to claim 5, wherein the holding means 22 is provided with a plurality of comb wings 221 having a substantially U-shape. The contact 12 can be securely held on the rear insert 16.
(7) The electrical connector 10 according to claim 7 is characterized in that the flange portion 181 is rectangular and the center of the fitting port 40 is shifted from the center of the flange portion 181. Since any one of the electrical connectors 10 is provided, when the electrical connector 10 is attached to the housing 80, the cables 60 can be easily distributed by effectively utilizing the space.

An embodiment of the electrical connector of the present invention will be described with reference to FIGS.
1A is a perspective view of the electrical connector of the present invention as seen from the fitting direction, and FIG. 1B is a perspective view of the electrical connector of the present invention as seen from the cable protruding direction. FIG. 2 is a longitudinal sectional view of the present invention, and FIG. 3 is a perspective view of a contact. 4A is a perspective view of the bush member viewed from the fitting port side, and FIG. 4B is a perspective view of the bush member viewed from the cable side. FIG. 5A is a perspective view of the rear insert viewed from the fitting port side, and FIG. 5B is a perspective view of the rear insert viewed from the cable side. FIG. 6A is a perspective view of the front insert as viewed from the fitting port side, and FIG. 6B is a perspective view of the front insert as viewed from the cable side. FIG. 7A is a perspective view of the shell viewed from the fitting port side, and FIG. 7B is a perspective view of the shell viewed from the cable side. FIG. 8 is a perspective view of the retainer ring. 9A is a perspective view of the front insert, the contact, the reinforcer, the bush member, and the retainer ring as viewed from the fitting port side, and FIG. 9B is the retainer ring, the bush member, the rear insert, the contact, and the front insert as viewed from the cable side. FIG. FIG. 10 is a diagram illustrating a state in which the cables are gathered.
The electrical connector 10 of the present invention includes at least a plurality of contacts 12, a front insert 14, a rear insert 16, a shell 18, a bush member 20, and a retainer ring 24.

The components of the electrical connector 10 according to the present invention will be described with reference to FIGS.
First, the bush member 20 which is the point of this invention is demonstrated. As shown in FIG. 4, the bush member 20 has a substantially cylindrical shape, and is attached to the contact 12 to prevent the contact 12 from swinging and perform reliable positioning. The bush member 20 is an electrically insulating plastic, and is manufactured by a known technique of injection molding. This material is appropriately selected in consideration of springiness, dimensional stability, workability, cost, etc. Examples thereof include polybutylene terephthalate (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), and synthetic materials thereof. The bush member 20 includes at least an insertion portion 202 into which the contact 12 and the cable 60 are inserted, a slit 201 for facilitating insertion of the contact 12 and the cable 60, and a press-fit portion for fixing the rear insert 16. 203.

  The role of the bush member 20 is to attach the bush member 20 to the contact 12 when there is a clearance between the connection portion 125 of the contact 12 and the concave portion 162 of the rear insert 16. By complementing the clearance between the portion 125 and the recess 162 of the rear insert 16 with the bush member 20, the contact 12 is prevented from swinging and reliably positioned.

The insertion portion 202 only needs to be able to insert the contact 12 to which the cable 60 is connected, and the shape and size are appropriately designed in consideration of the above role, the shape / size, workability, and the like of the contact 12.
The slit 201 is provided so that the contact 12 connected after the cable 60 is connected to the bush member 20, so that the contact 12 to which the cable 60 is connected can be easily and easily inserted. The member 20 is provided with elasticity (spring property). The shape and size of the slit 201 are appropriately designed in consideration of such role, springiness, workability, and the like.

  The press-fitting portion 203 only needs to be able to fix the bush member 20 in a state where the contact 12 is mounted to the concave portion 162 of the rear insert 16, and the size / shape of the press-fit portion 203 is such as the holding force and workability of the bush member 20. Design accordingly. In this embodiment, three band-shaped protrusions are provided on the outer periphery of the bush member 20.

Next, the front insert 14 will be described. The front insert 14 has a substantially cylindrical shape as shown in FIG. The front insert 14 is an electrically insulating rubber, and is manufactured by compression molding of a known technique. The material is appropriately selected in consideration of elasticity, dimensional stability, workability, cost, etc. Examples thereof include silicon rubber, nitrile rubber, chloroprene rubber, and synthetic materials thereof.
The front insert 14 is provided with a required number of insertion holes 141 at positions where the mating object and the contact 12 can come into contact with each other on the fitting port side, and an insertion recess 142 provided continuously with the insertion hole 141 on the cable connection side. It has been. A protrusion 144 is provided at the front end of the insertion hole 141 and a locking portion 143 is provided at the front end of the opening of the insertion recess 142. A first step portion 145 is provided on the outer periphery of the front insert 14 so that the front insert 14 does not protrude toward the fitting port side by engaging with the second step portion 184 of the shell 18. It has been.

The engaging portion 143 is engaged with the engaging portion 164 of the protruding piece 163 of the rear insert 16 so as to ensure that connection failure does not occur even if condensation occurs. The locking portion 143 has a substantially hemispherical shape in the present embodiment in order to ensure a reliable seal. The size of the locking portion 143 is appropriately designed in consideration of the above role, workability, sealability, and the like.
The insertion hole 141 suffices if the contact 12 can be inserted, and rubber is used as a material to improve adhesion with the contact 12. In order to improve the adhesion, the size of the insertion hole 141 is made somewhat smaller within the range in which it can be inserted from the contact 12. Furthermore, a protrusion 144 is provided to improve the adhesion.

  The insertion recess 142 only needs to be provided with the protruding piece 163 of the rear insert 16. The shape and size of the insertion recess 142 are appropriately designed in consideration of the sealing performance, the above role, the creepage distance, workability, strength, and the like.

Next, the rear insert 16 will be described. The rear insert 16 has a substantially cylindrical shape as shown in FIG. The rear insert 16 is an electrically insulating plastic, and is manufactured by a known injection molding method. The material is appropriately selected in consideration of dimensional stability, workability, cost, etc. Generally, polybutylene is used. Examples thereof include terephthalate (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), and synthetic materials thereof.
The rear insert 16 is provided with a recess 162 into which the bush member 20 is inserted on the cable connecting portion side. The shape and size of the concave portion 162 may be such that the bush member 20 can be inserted and the role of the bush member 20 can be satisfied. The role and holding force of the bush member 20, the miniaturization of the connector, the strength of the rear insert 16, It is designed appropriately in consideration of workability and the like.

  The rear insert 16 is provided with a projecting piece 163 projecting into a substantially cylindrical shape that enters the insertion recess 142 of the front insert 14, and an engaging portion 164 at the tip of the projecting piece 163. The protruding piece 163 and the engaging portion 164 enter the insertion recess 142 of the front insert 14 and the engaging portion 164 and the locking portion 143 engage with each other, so that dew condensation occurs. By reliably bringing the front insert 14 and the rear insert 16 into close contact with each other, connection failure due to condensation is prevented. Therefore, the engaging portion 164 protrudes outward and has a substantially hemispherical cross section in order to improve adhesion. The shape and size of the protruding piece 163 and the engaging portion 164 are appropriately designed in consideration of such a role, sealing performance, strength, workability, and the like.

  The rear insert 16 is integrally provided with holding means 22 inside the protruding piece 163. As the holding means 22, three comb wings 221 are provided, the tip of which protrudes inward, and the protruding portion is hooked and held on the hook portion 123 of the contact 12. Each of the three comb wings 221 is divided to give elasticity to the comb wings 221. The three comb wings 221 have a shape in which the tip portion is narrowed to improve the catch. Yes.

  An insertion hole 161 into which the contact 12 is inserted is provided inside the holding means 22 (the comb feather 221) of the rear insert 16. The shape and size of the mounting hole 161 may be designed as long as the contact 12 can be inserted, and is appropriately designed along the contact 12 in consideration of miniaturization of the electrical connector 10.

  Next, the contact 12 will be described. The contact 12 has a substantially rod shape as shown in FIG. 3, and the contact 12 is made of metal and is manufactured by a known cutting technique. Since the material of the contact 12 is required to have dimensional stability, conductivity, etc., examples thereof include brass, beryllium copper, and phosphor bronze. The contact 12 mainly includes a contact part 121 that contacts the mating connector on one end side, a connection part 125 connected to the cable 60 on the other end side, and two contact points between the contact part 121 and the connection part 125. It has a first collar part 122 and a second collar part 124, and a hook part located between the first collar part 122 and the second collar part 124. The contact 12 is fixed to the front insert 14 by press-fitting.

The contact portion 121 is a portion that comes into contact with the mating connector, and is appropriately designed in consideration of contactability with the mating connector, shape, contact force, and the like. In this embodiment, the pin shape is used, but a socket shape may be used as long as the same configuration is provided.
The first flange portion 122 and the second flange portion 124 are positioning portions when the contact 12 is inserted into the front insert 14 and the rear insert 16. It is designed appropriately.

The connection portion 125 is a portion to which the cable 60 is connected, and the shape and size are appropriately designed according to the connection method. In this embodiment, the wires are connected by crimping.
The hook portion 123 is a portion where the holding means 22 of the rear insert 16 is hooked, and the holding means 22 may be hooked, and the shape and size are appropriately designed in consideration of the holding force with the holding means 22 and the like. is doing.

Next, the shell 18 will be described. The shell 18 is made of metal and is manufactured by a known technique such as cutting or die casting, and the material is appropriately selected in consideration of dimensional stability, workability, cost, etc. An alloy, an aluminum alloy, etc. can be mentioned.
As shown in FIG. 7, the shell 18 has a substantially cylindrical main body 186 and a substantially plate-shaped flange 181. The flange portion 181 is a portion fixed to the housing 80 with a screw as shown in FIG. 10, and a hole 185 for inserting the screw is provided at a predetermined position. In the present embodiment, four holes 185 are provided at four corners of the flange portion 181.

The body portion 186 has a substantially cylindrical shape, and a hole penetrates as shown in FIG. 7, and the front connector 14 and the hole (the body portion 186) held in the hole fit the mating connector. A joint 40 is formed.
Engagement means 182 having a substantially R shape for engaging with the mating connector is provided on the outer peripheral portion of the body portion 186 on the fitting side. The engaging means 182 is provided at three locations so as to equalize the circumference. By making the engaging means 182 into a substantially R shape, it is possible to engage with one touch only by inserting the convex shape portion of the mating connector into the substantially R shape portion.

In the hole of the shell 18, the retainer ring 24 enters at a predetermined position, and a groove 183 for fixing the front insert 14 and the rear insert 16 by the retainer ring 24 is provided. The shape and size of the groove 183 may be designed so that the retainer ring 24 can be inserted, and the front insert 14 and the rear insert 16 can be fixed.
A second step portion 184 that engages with the first step portion 145 of the front insert 14 is provided in a predetermined position in the hole of the shell 18. The second step portion 184 is positioned so that the front insert 14 does not protrude toward the fitting port, and at the same time, the second step portion 184 and the retainer ring 24 sandwich the front insert 14 and the rear insert 16. Have
The positions of the groove portion 183 and the second step portion 184 are appropriately designed so that the front insert 14 and the rear insert 16 can be fixed and can be fitted to the mating connector.
As shown in FIG. 10, the center of the body portion 186 of the shell 18 is shifted from the center of the flange portion 181 in consideration of the processing of the cable 60. By shifting, the cable 60 can be efficiently stored when the electrical connector 10 is attached to the housing 80. The shift amount between the centers of the main body 186 and the flange 181 is appropriately designed in consideration of the processing of the cable 60.

  Finally, the retainer ring 24 will be described. The retainer ring 24 is substantially C-shaped. The retainer ring 24 is made of metal and is manufactured by a known forming process or coiling process. The material is appropriately selected in consideration of dimensional stability, workability, cost, etc. And copper alloys such as phosphor bronze. The retainer ring 24 has a substantially cylindrical shape, and the role of the retainer ring 24 is to insert the retainer ring into the groove portion 183 of the shell 18 by inserting the front insert 14 and the rear insert 16 into the shell 18. And the retainer ring 24 to fix the front insert 14 and the rear insert 16 to the shell 18. The size of the retainer ring 24 is appropriately designed so as to enter the groove portion 183 of the shell 18 in consideration of such role, strength, workability, and the like.

  In the present embodiment, the pin connector using the pin-shaped contact 12 has been described. However, as long as the structure is as described above, a socket connector (not shown) using a socket-shaped contact may be used. Needless to say.

  As an application example of the present invention, it is used for an electrical connector with a cable used for industrial equipment, electronic / electrical equipment, etc., and can be positioned and prevented from swinging with a particularly simple structure, and a connection failure due to condensation does not occur It is about.

(A) It is the perspective view which looked at the electrical connector of this invention from the fitting direction. (B) It is the perspective view which looked at the electrical connector of this invention from the cable protrusion direction. It is a longitudinal cross-sectional view of this invention. It is a perspective view of a contact. (A) It is a perspective view of the bush member seen from the fitting port side. (B) It is a perspective view of the bush member seen from the cable side. (A) It is a perspective view of the rear insert seen from the fitting port side. (B) It is a perspective view of the rear insert seen from the cable side. (A) It is a perspective view of the front insert seen from the fitting port side. (B) It is a perspective view of the front insert seen from the cable side. (A) It is a perspective view of the shell seen from the fitting port side. (B) It is a perspective view of the shell seen from the cable side. It is a perspective view of a retainer ring. (A) It is a perspective view of a front insert, a contact, a renansert, a bush member, and a retainer ring seen from the fitting port side. (B) It is a perspective view of the retainer ring seen from the cable side, a bush member, a renansert, a contact, and a front insert. It is drawing explaining the state which put together the cable.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electrical connector 12 Contact 121 Contact part 122 1st collar part 123 Hook part 124 2nd collar part 125 Connection part 14 Front insert 141 Insertion hole 142 Insertion recessed part 143 Locking part 144 Protrusion part 145 First step part 16 Rear insert 161 Insertion Hole 162 Recessed portion 163 Protruding piece 164 Engaging portion 18 Shell 181 Flange portion 182 Engaging means 183 Groove portion 184 Second step portion 185 Hole 186 Main body portion 20 Bushing member 201 Slit 202 Inserting portion 203 Press-fit portion 22 Holding means 221 Comb wing 24 Retainer Ring 40 Mating port 60 Cable 80 Housing

Claims (7)

An electrical connector that is attached to and detached from the mating connector and to which a cable is connected,
A contact part that contacts the mating connector on one end side, a first hook part and a second hook part for positioning, a hook part located between the first hook part and the second hook part, and a cable on the other end A plurality of contacts having a connecting portion to connect with,
A front insert having an insertion hole in which the contacts are arranged and held, and an insertion recess connected to the insertion hole on the cable connection side;
A rear insert that is disposed on the cable connection side of the front insert and has an insertion hole in which the contacts are arranged and held; a recess into which the second flange portion of the contact enters; and a protruding piece that enters into the insertion recess of the front insert;
Holding means for holding the contact to the rear insert;
A shell having a fitting portion into which the mating connector is inserted and an engagement means between the mating connector and a flange portion for fixing to the housing;
In an electrical connector comprising a retainer ring that sandwiches the front insert and the rear insert with the shell,
A bushing member having an insertion portion into which the connection portion of the contact is inserted is provided, and the bushing member is mounted in the recess of the rear insert to prevent positioning of the contact and vibration. connector. An electrical connector that is attached to and detached from the mating connector and to which a cable is connected,
A contact part that contacts the mating connector on one end side, a first hook part and a second hook part for positioning, a hook part located between the first hook part and the second hook part, and a cable on the other end A plurality of contacts having a connecting portion to connect with,
A front insert having an insertion hole in which the contacts are arranged and held, and an insertion recess connected to the insertion hole on the cable connection side;
A rear insert that is disposed on the cable connection side of the front insert and has an insertion hole in which the contacts are arranged and held; a recess into which the second flange portion of the contact enters; and a protruding piece that enters into the insertion recess of the front insert;
Holding means for holding the contact to the rear insert;
A shell having a fitting portion into which the mating connector is inserted and an engagement means between the mating connector and a flange portion for fixing to the housing;
In an electrical connector comprising a retainer ring that sandwiches the front insert and the rear insert with the shell,
An engaging portion that protrudes outward is provided at the tip of the protruding piece of the rear insert, an engaging portion that protrudes inward is provided in the insertion recess of the front insert, and the engaging portion and the engaging portion are engaged. Electrical connectors characterized by creepage distance measures and prevention of poor connection due to condensation. The electrical connector according to claim 1, wherein the bush member is provided with a slit continuous with the insertion portion, and the bush member has elasticity so that the bush member can be easily held by the connection portion of the contact. The electrical connector according to claim 2, wherein tips of the engaging portion and the locking portion are substantially hemispherical. 5. The electrical connector according to claim 1, wherein the holding means is integrated with the rear insert. 6. The electrical connector according to claim 5, wherein the holding means is provided with a plurality of comb feathers each having a substantially U shape. The electrical connector according to claim 1, wherein the flange portion is rectangular and the center of the fitting port is shifted from the center of the flange portion.

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