JP2011141991A - Substrate-housing connector with wire harness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To protect from shocks a printed circuit board housed inside a connector housing or an electric component mounted on the printed circuit board even if a substrate-housing connector with a wire harness is given shocks from outside. <P>SOLUTION: In the substrate-housing connector with a wire harness 10 which is connected with a connector 11 with a printed circuit board 15 housed in a wire harness arranged in a vehicle beforehand, at least a peripheral edge of the printed circuit board 15 is fixed to a support part 21 fitted in protrusion from an inner surface of a connector housing 12 and housed inside the same 12, and a shock absorber 23 is fitted on an inner surface of the connector housing 12 facing to a protruded surface of an electronic component 16 mounted on the printed circuit board 15. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a board-accommodating connector with a wire harness, and more particularly to protecting a printed circuit board housed in a connector housing and electronic components mounted on the board from external impacts.

  2. Description of the Related Art Conventionally, a connector having a printed circuit board on which electronic components are mounted inside a connector housing and having a communication function and a control function is used. For example, Japanese Patent Laying-Open No. 2005-5168 (Patent Document 1) discloses a connector 1 in which a printed circuit board 3 in which an electronic component 3A such as a capacitor or IC is mounted is accommodated in a connector housing 2 as shown in FIG. It is shown. A terminal 4 connected to the conductor of the printed circuit board 3 and arranged on one end side of the connector housing 2 is connected to a terminal of each electric wire (not shown) constituting the wire harness and is also connected to a conductor of the printed circuit board 3. The terminal 5 arranged on the other end side of the connector housing 2 is connected to a terminal (not shown) on the device side.

The board accommodating connector 1 as described above is connected in advance to the wire harness in the wire harness manufacturing factory, and in this state is conveyed to the automobile assembly line.
At the time of this conveyance, an impact may be applied to the board housing connector 1 by loading another wire harness on the board housing connector 1. Further, in the automobile assembly line, the wire harness may be dropped, the board housing connectors may hit each other, the external cushioning material may collide, or a strong impact may be applied to the board housing connector 1. In this way, due to an external impact, the connector housing 2 is recessed toward the protruding surface side of the electronic component 3A of the printed circuit board 3 and comes into contact with the electronic component 3A, causing damage to the electronic component 3A and the printed circuit board 3 on which the electronic component 3A is mounted. There is a problem that is easy to make.

JP 2005-5168 A

  An object of the present invention is to protect a printed circuit board housed inside a connector housing and an electronic component mounted on the board from an impact even when the board housing connector with a wire harness receives an impact from the outside.

  In order to solve the above-mentioned problem, the present invention provides a board-containing connector with a wire harness in which a connector containing a printed board is connected in advance to a wire harness arranged in a vehicle, and at least the periphery of the printed board is a connector housing. A shock absorbing material is provided on the inner surface of the connector housing that is fixed to a support portion protruding from the inner surface of the connector housing and accommodated inside the connector housing, and facing the protruding surface of the electronic component mounted on the printed circuit board. The board accommodation connector with a wire harness characterized by being provided.

As described above, in the board housing connector with a wire harness of the present invention, the printed board is housed in the connector housing, and the shock absorbing material is provided on the inner surface of the connector housing facing the protruding surface of the electronic component mounted on the printed board. Provided. With this configuration, even if the connector housing bends to the protruding surface side of the electronic component due to an external impact, such as a falling wire harness or a collision between connectors, the shock absorber provided on the inner surface of the connector housing absorbs the impact. Therefore, the damage to the electronic component facing the shock absorbing material and the printed circuit board on which the electronic component is mounted can be greatly reduced. Moreover, since it is only necessary to provide the shock absorbing material on the inner surface of the connector housing facing the protruding surface of the electronic component, the printed circuit board and the mounted electronic component can be easily protected from the impact while reducing the manufacturing cost and the work man-hours. .
The outer surface of the shock absorbing material provided on the inner surface of the connector housing is preferably separated from the highest projecting surface of the electronic component by about 3 to 5 mm in consideration of the bending of the connector housing due to the impact.

Further, as described above, by fixing at least the peripheral edge of the printed circuit board to the support portion protruding from the inner surface of the connector housing, the printed circuit board can be stably held inside the connector housing. Therefore, even when the board-accommodating connector with the wire harness receives an impact from the outside, it is possible to prevent the printed board from being displaced and rattled, and to prevent damage to the printed board and the electronic components mounted on the printed board.
As the support portion, for example, a support portion having a predetermined height is erected continuously or spaced from the inner surface of the bottom wall of the connector housing along the periphery of the printed circuit board to be accommodated, and the support portion is placed on the support portion. There is a structure in which after the printed board is placed, the support part and the printed board are fixed by screws. Also, a similar support portion may be erected from the inner surface of the upper wall of the connector housing, and the periphery of the printed circuit board may be sandwiched and fixed between the support portion on the bottom wall side of the connector housing and the support portion on the upper wall side of the connector housing. Good.

  In addition to the above configuration, if a shock absorber is also provided on the side end surface of the printed circuit board accommodated in the connector housing, the shock from the side of the connector can be absorbed and alleviated by the shock absorber. Damage to the substrate can be further reduced. Further, an impact absorbing material may be provided not only on the inner surface of the connector housing facing the protruding surface of the electronic component but also on the entire inner surface of the connector housing. As a result, the printed circuit board and the mounted electronic component housed inside the connector housing can be more reliably protected from impact.

It is preferable that a rubber sheet, a foam sheet or an air cap sheet is used as the impact absorbing material and is fixed to the inner surface of the connector housing with an adhesive.
In particular, it is preferable to use a rubber sheet having a thickness of about 1 to 10 mm and having a heat resistance and safety of 100 ° C. or higher as the impact absorbing material. Rubber materials include isoprene rubber, butadiene rubber, butyl rubber, ethylene propylene rubber, chloroprene rubber, epichlorohydrin rubber, acrylic rubber, urethane rubber, silicone rubber, fluorine rubber, styrene butadiene rubber, chlorosulfonated polyethylene, chlorinated polyethylene, and nitrile rubber. It may be determined from among polysulfide rubber and the like in consideration of heat resistance, weather resistance, etc. according to the mounting location.

  Further, it is preferable that the electronic component mounted on one or both sides of the printed circuit board and on which the shock absorbing material is opposed is a capacitor, an LSI, a diode or / and a board mounted relay.

  Electronic components such as capacitors, LSIs, diodes, and board-mounted relays are mounted in a state of protruding from the printed circuit board surface, so that the housing bent by an impact is easily contacted and easily damaged. Therefore, it is preferable that the shock absorbing material provided on the inner surface of the connector housing is disposed to face the electronic component as described above.

  Moreover, it is preferable that the terminal connected to the conductor of the printed circuit board is disposed at one or both ends of the connector housing, and is configured to be fitted and connected to the terminals of the electric wire terminals constituting the wire harness.

According to the above configuration, the power supply circuit, the communication control circuit, and the ground circuit provided on the printed circuit board can be simply connected to the terminals arranged at the end of the connector housing with the terminals of the electric wire terminals constituting the wire harness. Etc. can be connected to each electric wire, and a high-function connector with a wire harness having a communication control function in addition to a power feeding function can be easily obtained.
Specifically, for example, a board mounting connector for fitting a wire harness side connector that accommodates a terminal of each wire terminal of the wire harness is mounted on an end of the printed board, and connected to a conductor of the printed board. It is preferable that the printed terminal is housed and fixed in the connector housing so that the terminal mounted is projected into the board-mounted connector and the board-mounted connector is exposed from an opening provided on a side surface of the connector housing.

  As described above, according to the board-accommodating connector with a wire harness of the present invention, the printed board is accommodated in the connector housing, and the shock absorption is applied to the inner surface of the connector housing facing the protruding surface of the electronic component mounted on the printed board. Material is provided. Therefore, even if the connector housing bends to the protruding surface side of the electronic component due to an external impact, the shock absorbing material provided on the inner surface of the connector housing absorbs and reduces the shock. The damage to the printed circuit board on which the electronic component is mounted can be greatly reduced. Moreover, since it is only necessary to provide the shock absorbing material on the inner surface of the connector housing facing the protruding surface of the electronic component, the printed circuit board and the mounted electronic component can be easily protected from the impact while reducing the manufacturing cost and the number of work steps. .

It is a schematic perspective view of the board | substrate accommodation connector with a wire harness of this embodiment. It is a schematic sectional drawing of the board | substrate accommodation connector connected to a wire harness. It is a principal part expanded sectional view which shows the fixed state of the printed circuit board accommodated in a connector housing. It is a schematic perspective view which shows the inner surface side of the cover part of a connector housing. It is a schematic sectional drawing which shows the state of a board | substrate accommodation connector when an impact is applied from the outside. It is a figure which shows a prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show an embodiment of the present invention.
A board housing connector 10 with a wire harness shown in FIG. 1 has a board housing connector 11 that houses a printed circuit board 15 inside a connector housing 12 as shown in FIG. 2 and is connected in advance to a wire harness W / H routed in a vehicle. It is what you are doing.

  The connector housing 12 has a rectangular bottom wall 12A-1 and a side wall 12A-2 and has a housing main body portion 12A that opens on the upper surface side, and a rectangular upper wall 12B-1 that covers the upper surface opening of the housing main body portion 12A. It consists of the cover part 12B which has side wall 12B-2. Both the housing body 12A and the lid 12B are formed by resin molding.

  The housing main body 12A and the lid 12B can be integrated by engagement of the locking claws 12A-3 and the locked frame 12B-3, and the housing main body 12A and the lid 12B are integrated. When the housing body 12A and the lid 12B are short, the rectangular openings 13 and 14 for exposing the board mounting connectors 17 and 18 mounted on both ends of the printed circuit board 15 accommodated therein are formed. Concave portions 13A, 13B, 14A, and 14B are formed in the side walls 12A-2 and 12B-2 on the side.

  A printed circuit board 15 is accommodated in the housing main body 12A, and a capacitor (16a), an LSI (16b), a diode (16c), a relay (16d), a resistor (16e) as electronic components 16 are provided on one side of the printed circuit board 15. ) Is implemented. These electronic components 16 are connected to conductors (not shown) such as a power supply circuit, a ground circuit, and a communication control circuit provided on the printed circuit board 15.

Further, at one end of the printed circuit board 15, a board mounted connector 17 that is fitted to the wire harness side connector 30 attached to the end of the wire harness W / H is provided. A plurality of L-shaped terminals 19 are arranged at one end of the printed circuit board 15, and one end of each terminal 19 is projected as a male tab 19 a into the board mounting connector 17, while the other end bent downward is formed on the printed circuit board 15. It is connected to the conductor of the circuit by passing through the terminal hole and soldering.
Further, the other end of the printed board 15 is provided with a board-mounted connector 18 that fits with a device-side connector (not shown). A plurality of L-shaped terminals 20 are also arranged at the other end of the printed circuit board 15, and one end of the terminal 20 is protruded into the board mounted connector 18 as a male tab 20a, while the other end bent downward is the printed circuit board. It is connected to the conductor of the circuit by penetrating through the 15 terminal holes and soldering.

In order to support the peripheral edge of the printed circuit board 15 to be accommodated, a support portion 21 having a predetermined height is continuously erected along the peripheral edge of the printed circuit board 15 from the inner surface of the bottom wall 12A-1 of the housing main body 12A. Screw holes 21a for screwing the printed circuit board 15 are drilled at four locations. Also, through holes 15a that communicate with the screw holes 21a when the printed circuit board 15 is placed on the support portion 21 are provided at four corners of the printed circuit board 15, and screws are provided in the communicating through holes 15a and the screw holes 21a. The printed circuit board 15 is firmly fixed on the support portion 21 by screwing 22 (FIG. 3).
In addition, after fixing the printed circuit board 15 on the support part 21, the cover part 12B of the connector housing 12 is integrated by covering the housing main body part 12A, so that the openings 13 and 14 formed on the side walls of the connector housing 12 are integrated. The board mounting connectors 17 and 18 of the printed board 15 are exposed.

  Further, as shown in FIGS. 2 and 4, a shock absorber 23 is provided on the inner surface of the upper wall 12B-1 of the lid portion 12B of the connector housing 12 that faces the protruding surface of the electronic component 16 mounted on the printed circuit board 15. Yes. In the present embodiment, a butyl rubber sheet having a thickness of about 3 mm is used as the shock absorber 23 and is fixed to the inner surface of the upper wall 12B-1 of the lid 12B with an adhesive 24. Between the outer surface 23a of the shock absorber 23 fixed to the inner surface of the upper wall 12B-1 of the lid 12B and the protruding surface of the electronic component 16, the deflection of the upper wall 12B-1 of the lid 12B due to the impact is taken into consideration. In this embodiment, the distance between the outer surface 23a of the shock absorber 23 and the protruding surface of the capacitor 16a that protrudes the highest among the electronic components 16 is 4 mm.

  The wire harness side connector 30 is fitted to the board mounted connector 17 exposed from the opening 13 formed on the side wall of the connector housing 12, and the terminal 19 (male tab 19 a) connected to the conductor of the printed board 15 and the wire harness side connector 30. By fitting and connecting the electric wires w housed in the terminal and the female terminals 31 of the terminal, the board housing connector 10 with the wire harness in which the board housing connector 11 is connected in advance to the wire harness W / H can be obtained.

  As described above, the printed circuit board 15 is accommodated in the housing main body 12A of the connector housing 12, and the upper wall 12B of the lid 12B of the connector housing 12 is opposed to the protruding surface of the electronic component 16 mounted on the printed circuit board 15. A shock absorbing material 23 made of a rubber sheet is provided on the inner surface. Therefore, as shown in FIG. 5, the impact provided on the inner surface of the upper wall 12 </ b> B- 1 by the upper wall 12 </ b> B- 1 of the lid 12 </ b> B being bent toward the protruding surface side of the electronic component 16 due to an external impact (impact in the arrow direction). Even when the absorbent material 23 comes into contact with the electronic component 16 temporarily, the shock absorber 23 absorbs and relieves the impact, thereby greatly reducing damage to the electronic component 16 and the printed circuit board 15 on which the electronic component 16 is mounted. can do. Further, since it is only necessary to provide the shock absorber 23 on the inner surface of the upper wall 12B-1 of the lid portion 12B facing the protruding surface of the electronic component 16, the printed circuit board and the mounted electronic component are shocked while suppressing the manufacturing cost and the work man-hour. Can be easily protected.

  Further, as described above, since the peripheral edge of the printed circuit board 15 is fixed to the support portion 21 projecting from the inner surface of the bottom wall 12A-1 of the housing main body 12A, the printed circuit board 15 is stabilized inside the housing main body 12A. Can be held. Therefore, even if the board-accommodating connector 10 with the wire harness receives an impact from the outside, the positional deviation and backlash of the printed board 15 can be suppressed, and damage to the printed board 15 and the electronic component 16 mounted on the printed board 15 can be prevented. be able to.

In this embodiment, since the electronic component 16 is mounted on one surface (upper surface) of the printed circuit board 15, the shock absorber 23 is fixed only to the inner surface of the upper wall 12B-1 of the lid portion 12B of the connector housing 12. However, the shock absorbing material 23 may be fixed to all the inner surfaces of the connector housing 12. Further, when the electronic components 16 are mounted on both surfaces of the printed circuit board, the shock absorber 23 is provided on at least the inner surface of the upper wall 12B-1 of the lid 12B and the inner surface of the bottom wall 12A-1 of the housing body 12A. Need to stick.
Further, an impact absorbing material may be fixed to the side end surface of the printed circuit board 15 facing the inner surface of the side wall 12A-2 of the housing main body 12A. Thereby, since the impact from the side of the board | substrate accommodation connector 11 can also be absorbed and relieve | moderated also by this impact-absorbing material, the damage to the printed circuit board 15 can further be reduced.

DESCRIPTION OF SYMBOLS 10 Board accommodation connector with wire harness 11 Board accommodation connector 12 Connector housing 12A Housing main-body part
12B Lid 15 Printed circuit board 16 Electronic components 17 and 18 Board mounted connectors 19 and 20 Terminal 21 Support section 23 Shock absorber 24 Adhesive 30 Wire harness side connector 31 Terminal of electric wire terminal

Claims (4)

A board housing connector with a wire harness that pre-connects a connector that houses a printed circuit board to a wire harness routed in a vehicle,
The connector housing, wherein at least a peripheral edge of the printed circuit board is fixed to a support portion projecting from the inner surface of the connector housing, is accommodated in the connector housing, and faces the projecting surface of the electronic component mounted on the printed circuit board A board-accommodating connector with a wire harness, wherein an impact absorbing material is provided on the inner surface of the wiring harness.   The board accommodating connector with a wire harness according to claim 1, wherein a rubber sheet, a foam sheet or an air cap sheet is used as the shock absorbing material, and is fixed to the inner surface of the connector housing with an adhesive.   3. The wire harness according to claim 1, wherein the electronic component mounted on one or both sides of the printed circuit board and the shock absorbing material is disposed to face each other is a capacitor, an LSI, a diode, and / or a board mounted relay. With board accommodating connector.   The terminal connected with the conductor of the said printed circuit board is arrange | positioned at the one end or both ends of the said connector housing, and it is fittingly connected with the terminal of each electric wire terminal which comprises the said wire harness. The board | substrate accommodation connector with a wire harness of description.

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