JP2587295Y2 - Multi-pole connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-pole connector for connecting a multi-pole contact provided on a card such as an IC card to a multi-pole contact provided on a computer or the like.

[0002]

2. Description of the Related Art In recent years, computers using the above card and related devices have been strongly required to be miniaturized, and for this reason, a thin multi-pole connector having a thickness of several mm has been required. . In addition, multi-polarization is also achieved by providing two rows of pin contact pieces on one multi-pole connector. A conventional multi-pole connector of this type is disclosed in Japanese Utility Model Laid-Open No. 4-73272 and Japanese Utility Model Laid-Open No. 5-73272.
No. 12945.

In the multi-pole connector described in the above publication, two rows of pin contacts are provided on the pin contact holding member having an insulating property so as to protrude forward, and an upper row of pin contacts are provided. The ends of the individual terminals forming the terminal row led out from the row to the rear of the pin contact piece holding member are bent so as to be located near the lower surface level of the pin contact piece holding member, and the pins in the lower row The ends of the individual terminals forming the terminal row led out of the connector row to the rear of the connector main body extend forward of the connector main body through a group of grooves formed on the lower surface of the connector main body. It is composed.

When such a terminal arrangement is employed, an end of a terminal forming a terminal row derived from the upper row of pin contact pieces and a terminal row derived from the lower row of pin contact pieces are formed. Since the ends of the terminals do not overlap in the vertical direction, the work of soldering each terminal of each terminal row to the circuit board, reworking defective soldering parts, removing all soldering parts, etc. Can be performed without being hindered by another terminal row.

A multi-pole connector of the above-described type, which has a multi-pole structure by projecting two rows of pin contact pieces in the upper and lower rows, is used as a connector main body, and such a connector main body is superimposed in two upper and lower stages. There is a case where the user wants to mount a pole connector on one circuit board and use it. Even in this multi-pole connector, it is extremely useful to take measures to enable the soldering of the terminals forming the terminal row and the rework of the soldered portion without being interrupted by another terminal row. is there.

[0006]

However, the multi-pole connector described in the above publication is of a type in which terminal rows respectively derived from upper and lower two pin contact strip rows are soldered to one circuit board. Therefore, it is difficult to apply the terminal row arrangement of the multi-pole connector described in the above-mentioned publication as it is to a multi-pole connector in which the connector main bodies are superimposed on the upper and lower two stages. Even if it is possible, when soldering all the terminal rows (four terminal rows) of each connector body to one circuit board or reworking the soldering location, it will not be interrupted by other terminal rows. It is impossible to do them.

The present invention has been made in view of the above circumstances, and in a multi-pole connector of a type in which a connector body is overlapped in two upper and lower stages, a contact provided in each connector body in upper and lower two rows. Soldering of terminals forming a total of four terminal rows derived from each of the single rows (for example, pin contact strips) and reworking of soldered portions are performed without being disturbed by the other rows of terminal rows. It is an object of the present invention to provide such a multi-pole connector.

Further, according to the present invention, in the above-mentioned multi-pole connector, even when the card is inserted into the upper or lower connector main body, the ground terminal provided on the card is replaced by the multi-pole connector. It can be connected to the ground line of the mounted circuit board, and the frame used for the connection can help to reinforce the connector body, and furthermore, signal lines can be arranged on the multi-pole connector mounting surface of the circuit board. It is another object to provide a multi-pole connector that can be installed.

[0009]

In the multipolar connector according to the present invention, the widthwise edges of the card are fitted into the left and right ends of the contact piece holding member to guide the card in the front-rear direction. A pair of right and left beam portions each having a guide groove are separately protruded forward, and a pair of connector bodies, each having two contact rows protruding from the contact piece holding member in up and down two rows, are vertically connected in two stages. The upper-side connector body is provided with a plurality of upper and lower contact pieces arranged in a vertical overlapping position between two upper and lower contact piece rows, and The two upper and lower terminal rows led out behind the side contact holding member are bent so that the end of the terminal is located near the lower surface level of the lower side contact holding member, and The bent part of the terminal row is located behind the bent part of the lower terminal row. And the corresponding ones of the ends of the terminals forming the upper terminal row and the ends of the terminals forming the lower terminal row are distributed right and left by a predetermined dimension. They are juxtaposed in the left-right direction, and in the lower connector body, the contact pieces are arranged at overlapping positions in the vertical direction between the two upper and lower contact piece rows, and the lower contact piece holding is performed from these contact piece rows. The upper and lower terminal rows led out behind the member are bent so as to extend forward of the contact holding member through a group of grooves formed on the lower surface of the lower contact holding member. The bent part of the upper terminal row is provided behind the bent part of the lower pin terminal row, and the end of the terminal forming the upper terminal row and the lower terminal row are formed. Those that correspond to the end of the terminal that is In which they are parallel with the lateral direction is.

A multi-pole connector according to a second aspect is obtained by adding the following configuration to the configuration of the first aspect. That is, in the upper-stage connector body, the first metal frame is spanned between the upper surfaces of the pair of left and right beams, and inserted into the first frame between the pair of left and right beams. A contact piece for contacting a ground terminal provided on the card is provided, and in the lower connector body, a metal second frame is superimposed on a lower surface of at least one beam portion,
The second frame is provided with a contact piece that contacts the ground terminal provided on the card inserted between the pair of left and right beam portions, and a ground contact piece that contacts the ground line of the circuit board, A hole communicating with the beam portion of the upper connector body and the beam portion of the lower connector body overlapping each other is formed, and a contact piece provided in the first frame and a contact piece provided in the second frame are formed in the hole. The contact piece thus inserted is inserted from the opposite side, and both contact pieces are in contact in the hole.

[0011]

According to the first aspect of the present invention, the upper connector body has two upper and lower terminal rows derived from the contact piece rows provided in the upper and lower two rows, and the lower connector body has two upper and lower rows. The two upper and lower terminal rows derived from the contact row are distributed to the rear and the front of the upper and lower contact holding members, and further, form a terminal row distributed to the rear. The ends of the individual terminals and the ends of the individual terminals forming the terminal row distributed forward are arranged in parallel in the left-right direction. Therefore, when only the ends of all the terminals are viewed, the terminal arrangement is the same as that of the multi-pole connector described in the above publication as a conventional example. Therefore, other work such as soldering the terminals allocated to the rear or the terminals allocated to the rear to the circuit board and reworking to correct defective soldering points or remove all soldering points are required. Can be performed without being hindered by the terminal row.

According to the invention of claim 2, the ground terminal of the card inserted between the beams of the upper connector body is
A ground line of a circuit board via a contact piece of the first frame, a first frame, a contact piece of the first frame, a contact piece of the second frame, a second frame, and a ground contact piece of the second frame. Connected to. The ground terminal of the card inserted between the beam portions of the lower connector body is connected to the ground line of the circuit board via the contact piece of the second frame, the second frame, and the ground contact piece of the second frame. Connected to.

On the other hand, since the first frame is laid between the pair of left and right beams of the upper connector, the first frame functions as a frame for reinforcing the upper connector body. . In the lower connector body, the lower surface of at least one beam portion is provided with a second
Since the frames are merely overlapped, the space between the pair of left and right beams is opened. Therefore, when the multi-pole connector is mounted on the circuit board, the multi-pole connector mounting surface of the circuit board is not covered by the frame or the like, and as a result, signal lines can be provided on the mounting surface.

[0014]

1 is a schematic plan view of a multi-pole connector according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a view of the terminal shown in FIG. FIG. 4 is a schematic perspective view of a second frame 5 to be described later, FIG. 5 is an enlarged sectional view taken along line VV of FIG. 1, and FIG. 6 is a view taken along line VI-VI of FIG. It is an expanded sectional view.

In this multipolar connector, a pair of connector bodies superimposed in two upper and lower stages have substantially the same configuration.
Accordingly, first, the main structure of the upper connector body 1 will be described.

FIG. 1 shows the upper connector body 1 in a plan view. Reference numeral 2 denotes a contact piece holding member made of an insulating synthetic resin, and as shown in detail in FIG. 2, a recessed space 21 having a long front surface open in the left-right direction (indicated by an arrow W in FIG. 1). In addition, pin-shaped contact pieces (hereinafter, referred to as pin contact pieces) 22 and 23 projecting into the recessed space 21 are held at positions overlapping in the vertical direction. And the upper pin contact piece 2
2 are arranged at equal pitches in the left-right direction W to form an upper row of pin contact pieces 22A, and the lower pin contact pieces 23 are arranged at equal pitches in the left-right direction W to form a lower pin contact piece row 23A. Has formed.

As shown in FIG. 2, the upper and lower rows of pin contact pieces 22
Terminals 24 and 25 extending through the contact piece holding member 2 and extending to the rear thereof are extended from the respective pin contact pieces 22 and 23 forming A and 23A. The terminals 24 derived from the pin contact pieces 22 forming the upper row of pin contact pieces 22A are arranged at equal pitches in the left-right direction W to form an upper row of terminal rows 24A, and the lower row of pin contact pieces 22A. Row 23
Terminal 25 derived from pin contact piece 23 forming A
Are arranged at equal pitches in the left-right direction W and the lower terminal row 25
A is formed. The individual terminals 24 belonging to the upper terminal row 24A are bent at substantially two right angles at the two locations 24a and 24b, and their ends 24c are located near the lower surface level of the contact piece holding member 2 'in the lower connector body 1'. It is located toward the rear R. The individual terminals 25 belonging to the lower terminal row 25A are also bent at substantially two right angles at the two locations 25a and 25b so that their ends 25c (see FIG. 3) are in the upper row of the terminal 2A.
4 is located toward the rear R at the same level as the end 24c. Here, the bent portions 24a and 24b of the individual terminals 24 belonging to the upper terminal row are located behind the bent portions 25a and 25b of the individual terminals 25 belonging to the lower terminal row 25A. Therefore, as can be seen from FIG. 2, the upper and lower terminal rows 24A and 25A are separated from each other. Also, the corresponding ones of the end 24c of the terminal 24 forming the upper terminal row 24A and the end 25c of the terminal 25 forming the lower terminal row 25A can be seen in FIG. In addition, the pin contact pieces 22 and 23 forming the upper and lower pin contact piece rows 22A and 23A are arranged right and left by だ け of the mutual pitch P1 and are arranged side by side in the left and right direction W. . Therefore, the relationship between P2 and P1 in FIG.
P2 = (P1) ・, and all the ends 2
, 25c... Have the same pitch. In addition,
The above-mentioned pitch P1 between the pin contact pieces 22 and 23 coincides with the pitch of the portion of the adjacent terminals 24 and 24 extending rearward of the contact piece holding member 2. Therefore, FIG. 3 shows the pitch of this portion as the pitch P1 between the pin contact pieces 22 and 23.

As shown in FIG. 1, a pair of left and right beams 3 and 3 project from the left and right ends of the contact piece holding member 2 in the upper connector body 1, respectively. These beam portions 3 are fitted with guide edges 31 in the width direction (corresponding to the left-right direction W) of a card, which will be described later, and guide the card in the front-rear direction (arrows F and R) (FIG. 5). And FIG. 6). As shown in FIG. 1, a support cylinder 32 is provided on one beam 3, and the tip of a push lever 33 slidably fitted to the support cylinder 32 is connected to a cam 34. ing. The push lever 33 and the cam 34 constitute a card ejection mechanism.

In FIG. 1, reference numeral 4 denotes a first plate-shaped frame made of a metal plate. The first frame 4 has projecting pieces 41 bent downward at a plurality of positions at both end edges in the left-right direction W. These projecting pieces 41 are provided with cut-and-raised engagement claws 42 as shown in FIG. Is formed. The projecting piece 41 is inserted into the slit-like hole 35 formed in the beam 3 from above, and as shown in FIG.
Is engaged with the stepped portion 36 provided in the above and is prevented from coming off.
And, as shown in FIG. 5, a contact piece 43 is integrally provided at the distal end of the protruding piece 41 provided at the front end of the first frame 4. Further, a predetermined projecting piece 41 of the first frame 4 has a contact piece 4 projecting into the guide groove 31 of the beam 3.
5 (see FIG. 1), and the contact piece 45 contacts a ground terminal (not shown) provided on the left and right end surfaces of the card inserted between the pair of left and right beams 3. It is supposed to.

As described above, when the first frame 4 having a flat plate shape is laid across the upper surfaces of the pair of beam portions 3 of the upper connector body 1, the first frame 4 is connected to the upper connector body. 1 helps to reinforce.

The lower connector body 1 'is formed of a frame 5, which will be described later, its mounting structure, and terminal rows 24A', 25A '.
The configuration is substantially the same as that of the above-described upper connector body 1 except for the shape of. Therefore, the portions corresponding to the respective portions of the upper-stage connector main body 1 are denoted by the same reference numerals as those used for the upper-stage connector main body 1, and the detailed description is omitted.

Next, in the lower connector body 1 ',
Differences from the upper connector body 1 will be described.

In FIG. 2, the upper and lower pin contact piece rows 22
A ', 23A', the individual pin contacts 22 ',
Terminals 24 'and 25' extending through the contact piece holding member 2 'and extending to the rear thereof extend to each of the contacts 23'. The terminal 24 'derived from the pin contact piece 22' forming the upper row of pin contact piece rows 22A '
The terminal row 24A 'of the upper row is formed side by side at equal pitches, and the terminals 25' derived from the pin contact pieces 23 'forming the lower row of pin contact pieces 23A' are equally pitched in the left-right direction W. A lower terminal row 25A 'is formed side by side.
The individual terminals 24 'belonging to the upper terminal row 24A' are bent substantially at right angles at the two locations 24a 'and 24b'.
It extends forward of the contact holding member 2 'through a groove (not shown in the figure) formed on the lower surface of the lower contact holding member 2'. Individual terminals 2 belonging to the lower terminal row 25A '
5 'is also bent at a substantially right angle at the two locations 25a' and 25b ', and extends forward of the contact holding member 2' through a groove 26 formed on the lower surface of the lower contact holding member 2 '. . Here, the upper row of terminals 24 'and the lower row of terminals 25' are distributed to the right and left at an appropriate place in the middle. Therefore, the terminal 2 is located on the lower surface of the contact piece holding member 2 '.
The 4 'and the terminal 25' do not overlap with each other, and they are individually fitted into the adjacent grooves 26. Here, the upper terminal row 2
4A ', the bent portions 24a' of the individual terminals 24 ',
24b 'is located behind the bent portions 25a' and 25b 'of the individual terminals 25' belonging to the lower terminal row 25A '. Therefore, as can be seen from FIG. 2, the upper and lower terminal rows 24A 'and 25A' are separated from each other. Also,
The end 24c 'of the terminal 24' forming the upper terminal row 24A 'and the terminal 2 forming the lower terminal row 25A'
Those corresponding to the ends 25c 'of the 5' are arranged right and left without overlapping each other, and their ends 24c 'and 25c' are arranged side by side in the left-right direction W. The relationship described here is based on the pitch P1 between the pin contact pieces 22 and 23 and the terminals 24 and 2 of the upper connector body 1.
5 has the same relationship as the pitch P2 between the ends 24c and 25c. That is, the ends 24c ', 25c' of the terminals 24 ', 25' of the lower connector body 1 '.
Is 1/4 of the pitch between the pin contact pieces 22 'and 23'.
The pitch between c ′ and 25c ′ is the same.

The beam portion 3 'protruding from the left and right ends of the contact piece holding member 2' in the lower connector body 1 'is formed with a slit-shaped hole 37' (see FIG. 6) at an appropriate position. The hole 3 is provided in the beam 3 of the upper connector body 1.
The slit-shaped hole 37 (see FIGS. 1 and 6)
Reference) is formed. A hole 35 '(see FIG. 5) communicating with the hole 35 at the front end of the beam 3 of the upper connector body 1 is formed at the front end of the beam 3'.

FIG. 4 shows the beam 3 'of the lower connector body 1'.
2 shows a metal second frame 5 to be superimposed on the lower surface of FIG. The second frame 5 has protruding pieces 52, 52a bent upward at a plurality of positions on the edge of the frame main body 51. The other protruding pieces 52 except for the protruding piece 52a at the front end are cut and raised at two upper and lower positions. A pair of engaging claws 53 and 54 are formed, and the protruding piece 52a at the front end is formed with an engaging claw 54 and a contact piece 57 having a contact 56. Is provided. The second frame 5 is provided with a ground contact piece 59.

Then, as shown in FIG. 6, the protruding pieces 52 are inserted into the respective holes 37 ', 37 of the beams 3', 3 from below.
The engaging claws 53, 54 are engaged with the stepped portions 37a, 37a 'provided in the holes 37, 37', and are prevented from being removed. Therefore, the upper connector body 1 and the lower connector body 1 ′ are connected to each other via the projecting piece 52 of the second frame 5. On the other hand, the protrusion 52a at the front end
5 ', 35 are inserted from below, the engaging claws 54 are engaged with the stepped portions 35a' of the holes 35 'to prevent them from coming off, and the contact pieces 57, 43 are connected to each other in the holes 35. They are in overlapping contact. When the multipolar connector having the above configuration is mounted on a circuit board, the terminal row 24 on the upper connector body 1 side is used.
A, 25A and terminal row 24 on lower connector body 1 'side
A ′ and 25A ′ are placed on a circuit board P indicated by phantom lines in FIG. 2 and their terminal rows 24A, 25A, 24A ′,
25A 'each terminal 24,25,24', 2
The ends 24c, 25c, 24c ', 25c' of the 5 'are soldered. At this time, the soldering is performed by the terminal rows 24A and 25A on the upper connector body 1 and the lower connector body 1 '.
Side terminal rows 24A 'and 25A' are distributed to the rear and front of the upper and lower contact piece holding members 2 and 2 ', so that they can be easily performed without being obstructed by other terminal rows. it can. Further, the rework of the soldering portion can be easily performed without being hindered by another terminal row.

When the multi-pole connector is mounted on the circuit board P, the second frame 5 has its ground contact piece 59 connected to the circuit board P.
And is in electrical contact with the ground line (not shown). Therefore, when a card is inserted between the pair of left and right beams 3 of the upper connector body 1, the ground terminal of the card is connected to the contact piece 45 of the first frame 4 and the first frame 4.
The frame 4, the contact piece 43 of the first frame 4, the contact piece 57 of the second frame 5, the second frame 5, and the ground contact 59 are connected to the ground line of the circuit board P. The ground terminal of the card inserted between the pair of left and right beams 3 'of the lower connector body 1' is the second terminal.
The contact piece 57 of the frame 5, the second frame 5, and the ground contact piece 59 are connected to the ground line of the circuit board. Further, in the lower connector body 1 ', since the second frame 5 is merely superimposed on the lower surface of the beam 3', the space between the pair of left and right beams 3 'is opened. Therefore, when the multi-pole connector is mounted on the circuit board P, the multi-pole connector mounting surface of the circuit board P is not covered by the frame or the like, and as a result, signal lines can be provided on the mounting surface. .

[0028]

According to the first aspect of the present invention, a multi-pole connector in which a connector body having pin contact pieces arranged in two upper and lower rows is overlapped in two upper and lower rows, and a total of four rows of terminals are provided. There is an effect that soldering of terminals forming a row and reworking of a soldering portion can be performed without being hindered by another row of terminals.

According to the invention of claim 2, the ground terminals of the cards inserted into the upper and lower connector bodies can be connected to the ground line provided on one circuit board. There is an effect that the upper connector body is reinforced by the first frame contributing to the connection. Also, since various signal lines can be provided using the mounting surface of the multi-pole connector on the circuit board, a large number of signal lines required by mounting the multi-pole connector of the present invention are mounted. There is an effect that it can be provided on the circuit board itself.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a multi-pole connector according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is an explanatory diagram of the terminal row shown in FIG. 2 as viewed from the direction of arrow III.

FIG. 4 is a schematic perspective view of a second frame.

FIG. 5 is an enlarged sectional view taken along line VV of FIG.

FIG. 6 is an enlarged sectional view taken along line VI-VI of FIG.

[Explanation of symbols]

1, 1 'connector body 2, 2' contact holding member 3, 3 'beam 4 first frame 5 second frame 22A, 23A, 22A', 23A 'contact row 24, 25, 24', 25 'terminal 24A, 25A, 24A ', 25A' Terminal row 24a, 24b, 25a, 25b Bend point of upper row of terminal rows 24a ', 24b', 25a ', 25b' Bend point of lower row of terminal rows 24c, 25c, 24c ', 25c' Terminal end 31, 31 'Guide groove 35, 35' Hole 43, 57 Contact piece 45, 58 Contact piece 59 Ground contact piece

Claims (2)

(57) [Scope of request for utility model registration] 1. A pair of left and right beam portions having guide grooves for guiding the card in the front-rear direction by fitting the edges in the width direction of the card into the left and right ends of the contact piece holding member. It is projected separately, and the upper and lower
A multi-pole connector in which a pair of connector bodies each having a contact row protruding over the rows are superimposed in two upper and lower stages. In the upper-stage connector main body, contact is established between the two upper and lower rows of contact rows. The upper and lower terminal rows are led out of the upper and lower contact holding members from these contact rows so that the ends of the terminals are connected to the lower contact holding section. While being bent so as to be located near the lower surface level of the member, the bent part of the upper terminal row is provided behind the bent part of the lower terminal row, and the upper terminal row is Corresponding ones of the end of the terminal being formed and the end of the terminal forming the lower row of terminals are arranged right and left by a predetermined dimension, and they are arranged in parallel in the left and right direction. In the connector body, the upper and lower contact strips The upper and lower terminal rows, which are arranged at overlapping positions in the direction and are drawn out of the row of contact pieces to the rear of the lower contact piece holding member, have multiple grooves formed on the lower surface of the lower contact piece holding member. While being bent so as to extend forward of the contact piece holding member through the group, the bent portion of the upper row of terminal rows is provided behind the bent location of the lower row of pin terminal rows, and Those corresponding to the end of the terminal forming the terminal row of the row and the end of the terminal forming the terminal row of the lower row are arranged right and left by a predetermined dimension, and they are arranged in the horizontal direction. A multi-pole connector, which is arranged in parallel. 2. In the upper connector body, a first metal frame is spanned between upper surfaces of a pair of left and right beam portions, and the first frame is interposed between the pair of left and right beam portions. A contact piece for contacting a ground terminal provided on the inserted card is provided. In the lower connector body, a metal second frame is superimposed on a lower surface of at least one beam portion.
The frame is provided with a contact piece for contacting the ground terminal provided on the card inserted between the pair of left and right beams, and a ground contact piece for contacting the ground line of the circuit board. A hole communicating with the beam of the upper connector main body and the beam of the lower connector main body is formed, and a contact piece provided on the first frame and a contact provided on the second frame are formed in the hole. The contact piece is inserted from the opposite side, and both contact pieces are in contact in the hole.
The multi-pole connector according to 1.