JPH0617170U - Card edge connector - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To protect the spring part that contacts the board and stabilize the contact pressure with the board. A connector housing 1 having a partition wall 16 and a support hole 16a for communicating the insertion port 15 and the connection space 17 with each other.
1, an insertion opening 1 including a spring portion 13A and a tab portion 13C
The spring portion 13A is located at a position where it can come into contact with the wiring portion of the substrate P within 5.
For connecting the tab portion 13C to the support hole 16a and projecting into the connecting space 17 and the female fitting portion 14A for connecting and fitting to the tab portion 13C.
In addition, the female fitting portion 14A is fitted to the tab portion 13C of the board connecting terminal 13 by being electrically connected to the tip of the electric wire 3 and being inserted from the rear into the connecting space 17 of the connector housing 11. Mating terminal 14
And the mating terminal 14 to the board connecting terminal 13
The fixing mechanism 30 accommodates and fixes the connector housing 11 in the state of being fitted to the connector housing 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a card edge connector that is directly attached to a card-shaped substrate such as a printed wiring board.

[0002]

[Prior art]

 Conventionally, as this type of connector, for example, the connector described in Japanese Utility Model Laid-Open No. 53-40486 is known. As shown in the examples of FIGS. 6 and 7, this connector is composed of a connector housing 1 and a board connecting terminal 2. As shown in FIG. 5, the board connecting terminal 2 is configured as a spring section 2A whose rear end is crimped to the front end of the electric wire 3 and whose front end contacts the wiring section of the board P.

At the stage before assembly of the connector, the board connecting terminal 2 having the electric wire 3 and the connector housing 1 are handled separately. At the time of assembly, the number of terminals 2 according to the number of poles is attached to the connector housing 1 to complete the connector as shown in FIGS.

[0004]

[Problems to be solved by the device]

 By the way, in the conventional board connecting terminal 2, as shown in FIG. 5, the portion to be crimped on the electric wire 3 and the spring portion 2A which comes into contact with the board P are integrally provided, and at a stage before being assembled as a connector Is handled with the spring portion 2A at the tip exposed. Therefore, the spring portion 2A, which should be sufficiently managed as a contact, may be deformed during the handling work. Although it is possible to cover the spring portion 2A with a hood in order to prevent deformation during work, such a measure cannot be taken because the spring portion 2A cannot be directly attached to the substrate.

Further, as shown in FIG. 7, in a state where the terminal 2 is incorporated in the connector housing 1, a gap t for fitting the substrate P is secured between the upper and lower terminals 2, but in the conventional case, There is also a problem that the clearance t is not constant due to the clearance relationship between the connector housing 1 and the terminal 2, and the contact pressure when the board P is fitted is not stable.

In view of the above circumstances, the present invention provides a card edge connector capable of protecting a spring portion that contacts a substrate and capable of bringing the spring portion into contact with the substrate with a stable contact pressure. With the goal.

[0007]

[Means for Solving the Problems]

 The present invention is a card edge connector that achieves an electrical connection with a wiring part of a board by fitting the end part of the board such as a printed wiring board. A connector housing having an insertion opening for insertion, a connection space at the rear portion, and a support hole for communicating the insertion opening with the connection space in the partition wall; a spring portion and a tab portion; The above-mentioned spring portion is arranged at a position where it can contact the wiring portion of the substrate within the insertion opening, and the tab portion is supported by the support hole and protrudes into the connecting space; The female fitting portion has a female fitting portion to be connected and fitted to the tab portion of the board connecting terminal, is conductively connected to the tip of the electric wire, and is inserted into the connecting space of the connector housing from the rear side, whereby the female fitting portion is inserted. Joint part is the board contact And a fixing mechanism for accommodating and fixing the fitting terminal in the connector housing with the fitting terminal fitted to the board connecting terminal. There is.

[0008]

[Action]

 In the connector having the above structure, the spring portion that comes into contact with the substrate is located inside the insertion opening of the connector housing. Moreover, the board connecting terminal having the spring portion is supported by the supporting hole of the partition wall. Therefore, the spring portion is protected by the connector housing and is securely held without rattling. When assembling the connector, insert the fitting terminal to which the wire is connected from the rear of the connector housing, fit the female fitting part to the tab part of the board connection terminal, and fix the fitting terminal in that state. The connector can be completed if it is housed and fixed by a mechanism.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of a connector 10 of the embodiment. FIG. 2 is a cross-sectional view of the connector 10 connected to the base plate P. The connector 10 includes a connector housing 11, a rear holder 12, a board connecting terminal 13, and a fitting terminal 14.

The connector housing 11 has a box-shaped insertion port 15 for inserting the substrate P in the front part of the partition wall 16 and a connecting space 17 in the rear part of the partition wall 16. The partition wall 16 is provided with a support hole 16a. The connecting space 17 is a space for connecting the board connecting terminal 13 and the fitting terminal 14, and has a rear end face opened so that the fitting terminal 14 and the rear holder 12 can be inserted therein. There is.

The connecting space 17 is vertically divided by a partition wall 18, and the fitting terminal 14 can be inserted into each of the spaces. By forming appropriate cuts in the upper and lower walls of the connecting space 17, a number of flexible engaging pieces 19 corresponding to the number of terminals 13 and 14 are formed.

As shown in FIG. 2, the flexible engagement piece 19 is provided so as to be movable as shown by an arrow (a) with the base portion at the right end in the figure as a fulcrum, and allows the insertion of the fitting terminal 14 and the rear wheel. The insertion of the rudder 12 restricts the outward movement (in the state shown in FIG. 2), and the engagement with the fitting terminal 14 is locked to prevent the fitting terminal 14 from being pulled out rearward. It is a thing.

A flexible rock arm 34 having a locking projection 33 is provided on the outer surface of the side of the connector housing 11, and when the tip of the connector housing 11 is fitted into the hood portion 35 on the board P side. In addition, it can be locked by fitting it into the locking hole on the hood portion 35 side.

As shown in FIG. 3A, the board connection terminal 13 has a curved flange portion 13A at its tip, and its rear end portion has a rectangular cross section than the intermediate press-fitting stopper step portion 13B. It is formed as a tab portion 13C. In this board connection terminal 13, a spring portion 13A is arranged at a position where it can come into contact with a wiring portion of a board P in an insertion opening 15 of a connector housing 11, and a tab portion 13C is provided in a support hole 16a of a partition wall 16. It is press-fitted into and supported by and is projected into the connecting space 17. The spring portions 13A arranged in two rows above and below in the insertion opening 15 are arranged so that the convex curved portions 13a contacting the wiring portion of the board face each other inwardly, and the upper and lower board connecting terminals 13 are arranged. The end portions of the substrate P can be fitted between the convex curved portions 13a, 13a.

On the other hand, as shown in FIG. 3 (b), the fitting terminal 14 has a female fitting portion 14 A formed at the tip thereof so as to be connectable with the tab portion 13 C of the board connecting terminal 13. Inside the female fitting portion 14A, a spring (not shown) for ensuring the fitting with the tab portion 13C of the board connecting terminal 13 is provided. The tip of the electric wire 3 is crimped to the rear end of the fitting terminal 14.

Further, as shown in FIGS. 1 and 2, the rear holder 12 has a pair of slide plates 12C and 12C provided above and below a frame-shaped main body 12B having a hole 12A for drawing an electric wire. It has a protruding shape. The slide plates 12C and 12C prevent the outward movement of the flexible engagement piece 19 described above by being inserted into the slots 20 formed at the rear end of the connector housing 11. A notch 12D is provided at an appropriate position to avoid the rib 21 on the 11 side.

Therefore, in this embodiment, the above-mentioned flexible engagement piece 19 and the rear holder 12 constitute a fixing mechanism 30 for fixing the fitting terminal 14.

The rear holder 12 itself is fixed by engaging the engaging pieces 12E provided on the upper and lower sides and both side portions of the main body 12B of the rear holder 12 with the engaging holes 31 (provided on the upper and lower sides and both side portions of the rear end portion of the connector housing 11). However, this is done by engaging with both sides (not shown).

In this connector 10, before the assembly, the board connecting terminal 13 is already press-fitted into the partition wall 16 in the insertion opening 15 of the connector housing 11, and the front end spring portion 13 A is inserted into the insertion opening 15. positioned. Therefore, the tip spring portion 13A is protected, is not deformed during handling, and is securely held in a fixed position, so that the contact pressure is stable even when the board P is fitted.

Although a fitting terminal 14 is provided on the side of the electric wire 3, this terminal 14 has a female fitting portion 14A fitted to the board connecting terminal 13 for handling. You don't have to worry too much about it.

Next, a procedure for assembling the connector 10 will be described with reference to FIGS. 1, 2 and 4.

When assembling the connector 10, first, the connector housing 11 into which the board connecting terminal 13 is press-fitted is prepared, and the fitting terminal 14 is inserted from the rear into the connecting space 17 of the connector housing 11. At that time, the fitting terminal 14 is inserted in a state where the upper and lower stages of the partition wall 18 are back to back. Then, as shown in FIGS. 4A and 4B, the female fitting portion 14A of the fitting terminal 14 is fitted to the tab portion 13C of the board connecting terminal 13 protruding into the connecting space 17, respectively. To combine.

Then, in this state, the slide plate 12C of the rear holder 12 is inserted into the slot 20 of the connector housing 11 from the rear, and the main body 12B of the rear holder 12 is fixed to the connector housing 11. Then, the slide plate 12C restricts the outward movement of the flexible engagement piece 19 and engages the shoulder portion 14B of the fitting terminal 14. As a result, the fitting terminal 14 is fixed and prevented from coming off, and the connector is completed.

As shown in FIG. 2 and FIG. 4C, the completed connector 10 is fitted into the board P-side hood portion 35, and the end portion of the board P is inserted through the insertion port 15. By doing so, the spring portion 13A of the board connecting terminal 13 bends, the spring portion 13A and the wiring portion of the board P come into contact with each other, and both are electrically connected to each other.

As described above, the connector 10 is completely assembled by inserting the fitting terminal 14 into the connector housing 11 in which the board connecting terminal 13 is set in advance, and further inserting the rear holder 12. However, it is easy to automate.

[0027]

[Effect of device]

 As described above, according to the present invention, since the spring portion that comes into contact with the board is set in the connector housing in advance, there is no fear of deforming the spring portion during handling work or the like. Further, since the board connecting terminal having the spring portion is supported by the partition wall of the connector housing, the spring portion does not rattle and the contact pressure with the board is stable. Further, the shape of the fitting terminal may be any shape as long as it can be fitted to the rear end portion of the board connecting terminal, so that a general-purpose terminal can be used, which is advantageous in terms of cost.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a side sectional view showing details of a state in which a connector according to an embodiment of the present invention is fitted to a board.

FIG. 3 shows a structure of a terminal in one embodiment of the present invention, (a) is a perspective view of a board connecting terminal 13,
FIG. 14B is a perspective view of the fitting terminal.

FIG. 4 is a schematic cross-sectional view showing, in sequence, the procedure for assembling a connector according to an embodiment of the present invention.

FIG. 5 is a perspective view of a board connecting terminal used in a conventional card edge connector.

FIG. 6 is a side sectional view showing a state in which a conventional card edge connector is fitted to a board.

FIG. 7 is a side sectional view showing a state before the conventional card edge connector is fitted to the board.

[Explanation of symbols]

 10 Connector 11 Connector Housing 12 Rear Holder (Fixing Mechanism Element) 12C Slide Plate 13 Board Connecting Terminal 13A Spring Part 13C Tab Part 14 Fitting Terminal 14A Female Fitting Part 15 Insert Port 19 Flexible Engagement Piece (Fixing Mechanism Element ) 30 fixing mechanism

Claims (1)

[Scope of utility model registration request] 1. A card edge connector that achieves an electrical connection with a wiring portion of a board by fitting the end portion of the board such as a printed wiring board, wherein the board is placed in front of a partition wall. A connector housing having a support space for communicating the insertion space and the connection space in the partition wall, and a spring part and a tab part, A substrate connecting terminal, in which the spring portion is arranged at a position where it can contact the wiring portion of the substrate in the insertion opening, and the tab portion is supported by the supporting hole and protrudes into the connecting space; The female fitting portion has a female fitting portion that is connected and fitted to the tab portion of the connection terminal, is conductively connected to the tip of the electric wire, and is inserted from the rear into the connecting space of the connector housing, thereby forming the female fitting portion. Is the board connection A terminal for fitting into a tab portion of a terminal for use, and a fixing mechanism for accommodating and fixing the terminal in the connector housing in a state where the terminal for fitting is fitted to the terminal for connecting board. Edge connector.