JP2011044383A - Terminal installation method and terminal installation jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal installation method in which a shift of a terminal pressed into a press-fit hole can be suppressed. <P>SOLUTION: When a terminal 4 is pressed into a press-fit hole 31 of a bottom wall 3, firstly a terminal installation jig 5 is arranged at the rear of the bottom wall 3 and a guide 7 is arranged at the front of the bottom wall 3, respectively, and one end of the terminal 4 housed in a housing hole 71 of the guide 7 is made to pass through the press-fit hole 31 of the bottom wall 3, and to abut on a support hole 51. Then, when the terminal 4 is pressed into the press-fit hole 31, the terminal 4 projecting from a rear end opening of the press-fit hole 31 is inserted into the support hole 51 from a front end opening. After the terminal 4 is pressed into the press-fit hole 31, the guide 7 is separated from the terminal 4, and the terminal installation jig 5 is separated and removed from the terminal 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a terminal mounting method for press-fitting a terminal into a press-fitting hole provided in a housing.

  The board connector terminal holding structure disclosed in Patent Document 1 below is configured by press-fitting board terminals into terminal holding holes penetrating the terminal holding wall of the connector housing. On both side portions of the board terminal in the lateral direction, a front locking projection and a rear locking projection are provided side by side. The front locking protrusion and the rear locking protrusion are rectangular protrusions having different height and lateral dimensions, and are press-fitted into both side walls of the terminal holding hole.

JP 2005-340068 A

  In the above terminal holding structure, the front locking protrusion and the rear locking protrusion of the board terminal are press-fitted into both side walls of the terminal holding hole. Metal burrs may be generated by contact between the locking projections and both side walls of the terminal holding hole, which may cause a short circuit between the terminals. For this reason, the excessive inspection process regarding the short circuit between terminals etc. may be needed. Further, if the interval between both side walls of the terminal holding hole is widened in order to suppress the generation of metal burrs, there is a possibility that the terminal alignment may be deteriorated due to the deflection of the terminal during press-fitting.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide a terminal mounting method and a terminal mounting jig capable of suppressing the deflection of the terminals press-fitted into the press-fitting holes of the connector housing.

In order to achieve such an object, the terminal mounting method of the present invention is a terminal mounting method in which a terminal is press-fitted into a press-fitting hole provided in a housing from one end opening portion, and the terminal is mounted on the housing. The terminal is press-fitted into the press-fitting hole while supporting a side surface of the terminal protruding from the other end opening of the hole.
The terminal mounting jig according to the present invention is a terminal mounting jig used in the terminal mounting method, wherein the terminal protruding from the other end opening of the press-fitting hole is inserted to support the side surface of the terminal. The terminal support part to be provided is provided.

  According to the present invention, terminal deflection can be suppressed by supporting the side surface of the terminal press-fitted into the press-fitting hole. As a result, the terminal alignment can be improved and the occurrence of metal burrs due to the contact between the terminals and the press-fitting holes can be suppressed.

It is a partially broken perspective view which shows the connector housing which a terminal is mounted | worn with the terminal mounting method of one Embodiment of this invention. It is a 1st figure which shows a mode that a terminal is mounted | worn with the terminal mounting method of one Embodiment of this invention, and has shown the state before press-fit of the terminal to a press-fit hole. It is a 2nd figure which shows a mode that a terminal is mounted | worn with the terminal mounting method of one Embodiment of this invention, and has shown the state which press-fits the terminal in the press-fit hole. It is a 3rd figure which shows a mode that a terminal is mounted | worn with the terminal mounting method of one Embodiment of this invention, and has shown the state which the press injection of the terminal to the press-fit hole was completed. It is a 4th figure which shows a mode that a terminal is mounted | worn with the terminal mounting method of one Embodiment of this invention, and has shown the state which removed the jig | tool for terminal mounting from the press-fit terminal. It is a figure which shows the terminal press-fit in the connector housing shown in FIG. 1 without using the jig for terminal mounting. It is a figure which shows the state which the terminal press-fitted without using the jig | tool for terminal mounting | wearing shown in FIG. 1 is colliding with the inner wall of a press-fit hole. It is sectional drawing which expands and shows the terminal press-fit using the jig for terminal mounting in the press-fit hole of the connector housing shown in FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a partially broken perspective view of a connector housing 1 to which a terminal 4 is mounted by the terminal mounting method of the present embodiment. 2 to 5 are views showing a state in which the terminal 4 is press-fitted and attached to the connector housing 1 by the terminal attachment method of the present embodiment. FIG. 2 is a view before the terminal 4 is press-fitted into the press-fitting hole 31, and FIG. 4 shows a state after press-fitting, and FIG. 5 shows a state after the terminal mounting jig 5 is detached. In addition, each direction of the up-down, front-back, left-right used in the following description is shown in each figure used for description. These top / bottom, front / rear, and left / right are described for explanation, and needless to say, may be different from the actual arrangement.

  As shown in FIG. 1, the connector housing 1 includes a bottom wall 3 at a rear end portion of a peripheral wall 2 that exhibits a square cylinder and extends in the front-rear direction. A plurality of press-fit holes 31 are arranged in the bottom wall 3 in the vertical and horizontal directions.

  The press-fitting hole 31 is a hole for press-fitting the terminal 4 protruding from the bottom wall 3 and penetrates from the front surface to the rear surface of the bottom wall 3. The terminal 4 is guided by the guide portion 7 of the press-fitting machine and press-fitted from the front end opening of the press-fitting hole 31. The guide portion 7 has a square bar shape and includes a storage hole 71 for storing the terminal 4. The terminal 4 stored in the storage hole 71 is pushed out from the front end opening side of the storage hole 71 and press-fitted into the press-fitting hole 31 from the rear end opening side.

  In this embodiment, when the terminal 4 is press-fitted from the guide portion 7 into the press-fitting hole 31, the side surface of the terminal 4 protruding from the rear end opening of the press-fitting hole 31 is shown in FIG. Use to support. The terminal mounting jig 5 has a rectangular bar shape similar to that of the guide portion 7 and has support holes 51 into which the terminals 4 are inserted opened on the front surface and the rear surface. The terminal mounting jig 5 supports the side surface of the terminal 4 with the inner wall of the support hole 51.

  A terminal mounting method for press-fitting the terminal 4 into the press-fitting hole 31 using the terminal mounting jig 5 will be described with reference to FIGS. When the terminal 4 is press-fitted into the press-fitting hole 31 of the bottom wall 3, first, as shown in FIG. 2, the terminal mounting jig 5 is arranged behind the bottom wall 3, and the rear end opening of the press-fitting hole 31 is placed. The front end opening of the support hole 51 is faced. Further, the guide portion 7 is disposed in front of the bottom wall 3, and the rear end opening portion of the storage hole 71 faces the front end opening portion of the press-fitting hole 31. Accordingly, one end of the terminal 4 accommodated in the accommodation hole 71 of the guide portion 7 is opposed to the support hole 51 through the press-fitting hole 31.

  The terminal 4 may be stored in the storage hole 71 after the guide portion 7 is disposed in front of the bottom wall 3 or may be stored before being disposed in front of the bottom wall 3. In FIG. 2, one end portion of the terminal 4 accommodated in the accommodation hole 71 is projected from the rear end opening of the accommodation hole 71 and the guide portion 7 is disposed in front of the bottom wall 3. The guide portion 7 may be disposed forward by being immersed in the storage hole 71 to one end.

  Subsequently, as shown in FIG. 3, the terminal 4 is pushed backward from the front end opening side of the accommodation hole 71 to press-fit the terminal 4 into the press-fitting hole 31. The terminal 4 press-fitted into the press-fitting hole 31 is inserted into the support hole 51 from the front-end opening with one end protruding from the rear-end opening of the press-fitting hole 31.

  As shown in FIG. 4, the terminal 4 is press-fitted into the press-fitting hole 31 until the extension amount of the terminal 4 from the front end opening of the press-fitting hole 31 reaches a predetermined length. When the terminal 4 is press-fitted into the press-fitting hole 31, the guide portion 7 is separated from the terminal 4 and the terminal mounting jig 5 is detached from the terminal 4 as shown in FIG.

  For example, as shown in FIG. 6, when the terminal 4 is press-fitted from the accommodation hole 71 of the guide portion 7 into the press-fitting hole 31 without using the terminal mounting jig 5, the terminal 4 protrudes from the rear end opening of the bottom wall 3. When one end side of the terminal 4 is swung as shown by an arrow in FIG. 6, a portion located in the press-fitting hole 31 of the terminal 4 is also swung as shown by an arrow in FIG. For this reason, as shown by a frame A in FIG. 7, the terminal 4 may come into contact with the inner wall of the press-fitting hole 31 to cause a metal burr.

  On the other hand, in the terminal mounting method of this embodiment, as shown in FIG. 8, the side surface of the terminal 4 protruding from the rear end opening of the press-fitting hole 31 is supported by the inner wall of the support hole 51. 4 can be suppressed and occurrence of metal burrs due to contact between the inner wall of the press-fitting hole 31 and the terminal 4 can be suppressed.

  As described above, according to the present embodiment, the side surface of the terminal 4 that is press-fitted into the press-fitting hole 31 and protrudes from the rear end opening of the press-fitting hole 31 is supported by the support hole 51 of the terminal mounting jig 5. Since the terminal 4 is attached to the connector housing 1, the terminal 4 can be prevented from shaking. For this reason, terminal alignment can be improved and generation | occurrence | production of the metal burr | flash by the contact with the terminal 4 and the press-fit hole 31 can also be suppressed.

  Further, by improving the terminal alignment, it is possible to reduce the contact area between the terminal 4 and the press-fitting hole 31, to allow the pressure input necessary for mounting the terminal 4, and to reduce the load of the press-fitting machine. As a result, the production capacity is improved to reduce the cost of the product, the choice of press-fitting machine is expanded to reduce the cost of the equipment, and the number of terminals 4 to be attached to the connector housing 1 is increased. It is also possible to cope with multipolarization.

  In the above-described embodiment, the case where the terminal mounting jig 5 and the guide part 7 have a shape in which the support hole 51 and the storage hole 71 are provided in the rectangular bar-shaped body has been described. If the terminal 4 can be guided, the shapes of the terminal mounting jig 5 and the guide portion 7 are arbitrary.

  For example, the terminal mounting jig 5 does not support the side surface of the terminal 4 with the inner wall of the support hole 51, but supports the side surface of the terminal 4 with the side surfaces of a plurality of support members extending in the press-fitting direction of the terminal 4. You may have a structure.

  The number of support holes 51 provided in the terminal mounting jig 5 is also arbitrary. For example, when the terminals 4 are press-fitted into a plurality of press-fitting holes 31 at a time, as many support holes 51 as the number of the press-fitting holes 31 are provided. The mounting jig 5 may be provided.

  Further, the support hole 51 does not need to penetrate the terminal mounting jig 5 in the front-rear direction. Also, the method for press-fitting the terminal 4 into the press-fitting hole 31 is arbitrary, and the present invention can be applied to a method that does not use the guide portion 7.

DESCRIPTION OF SYMBOLS 1 Connector housing 2 Perimeter wall 3 Bottom wall 31 Press-fit hole 4 Terminal 5 Terminal mounting jig 51 Storage hole 7 Guide part 71 Storage hole

Claims (2)

  A terminal mounting method in which a terminal is press-fitted into a press-fitting hole provided in a housing from one end opening and the terminal is mounted on the housing, while supporting a side surface of the terminal protruding from the other end opening of the press-fitting hole. A terminal mounting method comprising press-fitting a terminal into the press-fitting hole. A terminal mounting jig used in the terminal mounting method according to claim 1,
A terminal mounting jig, comprising: a terminal support portion that inserts the terminal projecting from the other end opening of the press-fitting hole and supports a side surface of the terminal.

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