JPH07220806A - Pulling-out prevention structure for connector - Google Patents

Abstract

PURPOSE:To prevent a connector from being easily pulled out and so prevent its pilferage by fixing a cover portion so as to cover up a connector and ah external connection terminal of an electronic unit, with a cord being inserted into an insertion hole in the cover portion. CONSTITUTION:Plural, round holes 151 for inserting special screws 16 are disposed on an upper case 15. The upper case 15 is formed as box with its lower portion being open. A cut 152 in inverted U form is provided so that by combining with a cut 143 in U form in a lower case 14, an insertion hole for a wire harness 12 going through is formed. A male connector 111 of a control unit 11 is inserted in a female connector 121 disposed at an end of the harness 12. The unit 11 is fixed to the case 14 by screwing. Then, with the harness 12 being through the insertion hole, the case 15 is placed on the case 14, and the cases 14, 15 are screwed together with screws 16. Accordingly, the connector 121 is covered up with a cover portion formed by the upper and the lower cover, and so becomes difficult to touch with finger tips.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector withdrawal prevention structure which is preferably used in a vehicle theft prevention device or the like and which makes it difficult to disconnect the connectors of these electronic devices.

[0002]

2. Description of the Related Art Conventionally, in order to prevent theft of a vehicle or the like, when all doors are locked and the system is in a set state, door locks are unlocked or opened by means other than keys. If you do, or if the window glass of the vehicle is broken, ring the horn,
Anti-theft devices that blink lights or prevent the engine from starting have been put into practical use.

Such an anti-theft device controls the actuator by inputting a signal from a sensor for detecting the state of a door or a broken glass, an actuator such as a horn or a light, and a signal from the sensor and detecting the theft according to the state. It is composed of a unit, and these sensors and actuators and the control unit are connected by a wire harness.
In order to facilitate the assembly, the wire harness is generally provided with a connector, and the connector is inserted into an external connection terminal of a control unit or the like for electrical connection. To prevent the connector from coming off, the connector is provided with a lock mechanism so that the wire harness does not come off even when pulled.

[0004]

However, in the above-described connector with lock mechanism, the unlocking claw is exposed, and the connector can be easily unlocked and the connector can be pulled out. Therefore, there is a problem that the anti-theft function is lost only by disconnecting the connector of the control unit even though the anti-theft device is installed. It is an object of the present invention to solve the above problem by providing a structure in which the connector cannot be easily pulled out.

[0005]

In order to achieve the above object, the present invention provides a connector which is connected to an external connection terminal of an electronic device and prevents the connector for electrically connecting the electronic device and the external device from being pulled out. In the removal prevention structure of, the cover portion having an insertion hole for inserting a cord connected to the connector and electrically connecting the electronic device and the external device, and the cord connected to the connector, A fixing means for fixing the cover part and the electronic device so that the cover part covers the connector and the external connection terminal of the electronic device in a state of being inserted into the insertion hole of the cover part. To do.

A second invention is characterized in that the cover portion is integrally formed with a bracket for fixing the electronic device to a vehicle or the like. In a third aspect of the invention, the insertion hole is a closed hole formed by stacking two open holes provided at opposite ends of the cover part and having one open end, by folding the cover part. It is characterized by.

A fourth aspect of the invention is characterized in that the cover portion is formed integrally with the housing of the electronic device.

[0008]

According to the present invention, since the connector inserted into the external connection terminal of the electronic device is covered with the cover portion, it is difficult to directly contact with a fingertip or the like, and it is difficult to pull out the connector from the external connection terminal of the electronic device. Further, according to the second aspect of the present invention, since the bracket for fixing the electronic device to the vehicle or the like and the cover are integrally formed, no separate parts are required, and the number of assembling steps can be reduced.

Further, according to the third aspect of the invention, since the cord insertion hole formed by bending and overlapping the two open holes provided at the opposite ends of the cover portion is provided, the cord is formed by the open holes. It is assembled so as to be sandwiched, and the laborious work of passing the cord through the hole is not required, and the assembly is facilitated. Further, according to the fourth invention, the cover part is integrally formed with the housing of the electronic device,
No separate parts are required, and the number of assembly steps can be reduced.

[0010]

1 is an exploded perspective view of an embodiment according to the first invention. As shown in the figure, for example, in a vehicle antitheft device, a male connector 111 is provided as an external connection terminal in the control unit 11, and a sensor / actuator which is an external device (not shown) of the antitheft device,
The female connector 121 provided at one end of the wire harness 12 that connects the control unit 11 is configured to be inserted and removed. Further, the ground terminal 122 connected to the ground line of the wire harness 12 and also connected to one terminal of the connector 121 is screwed directly to the lower case 14 described later by the screw 13.

The control unit 11 is fixed to the lower case 14 with screws (not shown), double-sided tape or the like. The lower case 14 is formed of a steel plate, a steel plate, stainless steel, or the like in a box shape with an open top, and the ground terminal 12
The nut 141 for fixing the screw 2 to the connector 111
A nut 142 provided in the vicinity and for fixing the upper case 15 and the lower case 14 with a special screw 16 that cannot be rotated by a normal plus / minus screwdriver.
Are provided on the side surface of the lower case 14. A U-shaped cut 143 is provided on the front surface of the lower case 14 so that the wire harness 12 can be inserted therethrough.

The upper case 15 is provided with a plurality of round holes 151 through which the special screws 16 are inserted. Upper case 1
5 is formed in a box shape with an open lower part of an iron plate, a steel plate, stainless steel, etc., and an inverted U-shaped notch 152 is provided on the front surface, and by overlapping it with the U-shaped notch 143 of the lower case 14. An insertion hole for passing the wire harness 12 is formed.

The size of the insertion hole formed by the notches 143 and 152 is such that the wire harness 12 can be inserted but the connector 121 cannot be inserted, and it is preferable that the size is as small as possible. Further, instead of the nuts 141 and 142, the lower case 14 may be burred to be screwed. A bracket for mounting on the vehicle is provided as needed, and in this embodiment, a bracket 17 provided on the lower portion of the lower case 14 is screwed to the vehicle by a special screw 18.

In order to assemble the control unit 11 having the above structure to a vehicle or the like, the male connector 111 of the control unit 11 is used.
Insert the female connector 121 provided at one end of the wire harness 12 into the lower case 1 and connect the ground terminal 122 to the lower case 1.
It is screwed to the nut 141 of No. 4 with the screw 13. And
The control unit 11 is fixed to the lower case 14 with screws or double-sided tape, and the upper case 15 is covered with the lower case 14 in a state where the wire harness 12 passes through the insertion hole formed by the notches 143 and 152. Screw 1
The lower case 14 and the upper case 15 are screwed by 6 to complete the assembly. Further, the bracket 17 provided on the lower case 14 is screwed to the vehicle with the special screw 18 to fix the control unit 11 to the vehicle.

With the above construction, the female connector 121 is surrounded by the cover formed by the upper case 15 and the lower case 14, so that it is very difficult to touch it with a fingertip or the like, and the connector 121 Withdrawal can be prevented and the anti-theft capability is improved. 2 is an exploded perspective view of an embodiment according to the second invention, and FIG. 3 is an assembly view of the embodiment according to the second invention. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, as in the embodiment according to the first invention, the control unit 1
Instead of covering the entire 1 with the upper case 15 and the lower case 14, as shown in FIG. 2, only the external connection terminals of the control unit 11, that is, the vicinity of the connector 111 is covered with the lower cover 21 and the upper cover 22. ing.

A lower cover 21 to which the control unit 11 is fixed by screwing or double-sided tape not shown.
As shown in FIG. 2, an iron plate, a steel plate, stainless steel, etc. are cut and bent. One end of the front part is bent upward to form a cover part 216, and the other end is also bent. A back wall part 217 that holds a control unit
Are formed. The cover portion 216 is provided with a U-shaped notch 213, and an insertion hole through which the wire harness 12 is inserted is formed.

On both side surfaces of the lower cover 21, the protrusions 2 are provided.
18 is provided, and further, a nut 212 for screwing with the special screw 16 is provided. Further, a nut 211 for screwing the ground terminal 122 of the wire harness 12 with the screw 13 is provided near the connector 111. The upper cover 22 is formed to have a convex cross section so as to cover the connector 121 by cutting or bending an iron plate, a steel plate, stainless steel or the like, and round holes 221 through which the special screws 16 are inserted are provided at both ends thereof. Has been.

As a vehicle mounting bracket, the lower cover 21 is provided with a rearwardly projecting bracket portion 214 on the lower cover 21, and a nut 215 to be mounted on the vehicle by a special screw 18 is formed on the bracket portion 214. Has been done. In order to assemble the control unit 11 having the above structure to a vehicle or the like, the male connector 11 of the control unit 11 is used.
1 into which a female connector 121 provided at one end of the wire harness 12 is inserted, and the ground terminal 122 is attached to the lower cover 21.
The nut 211 is screwed onto the nut 211 with the screw 13. Then, the control unit 11 is fixed to the lower cover 21 with screws or double-sided tape or the like, and the upper cover 22 is covered on the lower cover 21 with the wire harness 12 passing through the insertion hole formed by the notch 213 and the upper cover 22. The special screws 16 are screwed on and the assembly is completed as shown in FIG. Further, the control unit 11 can be attached to the vehicle by screwing the nut 215 of the bracket portion 214 provided on the lower cover 21 to the vehicle with the special screw 18.

With the above-described structure, the female connector 121 is surrounded by the cover portion formed by the upper cover 22 and the lower cover 21, so it is very difficult to touch it with a fingertip or the like, and the connector 121 Withdrawal can be prevented and the anti-theft capability is improved. FIG. 4 is an exploded perspective view of an embodiment according to the third invention, and FIG. 5 is an assembly view of the embodiment according to the third invention. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the cover portion that covers the connector 111 portion of the control unit 11 is formed by one component.

As shown in FIG. 4, a holder 31 for fixing the control unit 11 with screws (not shown) or double-sided tape is formed by bending an iron plate, a steel plate, stainless steel, etc. Forming part 31
9 and a cover forming portion 320 is formed at the other end by bending downward. The cover forming portion 319 is provided with an inverted U-shaped notch 312 through which the wire harness 12 is inserted, and two nuts 313 which are fastened together with the cover forming portion 320 by the special screws 16 are provided at both ends thereof. There is. In addition, the cover forming portion 320 is provided with an inverted U-shaped notch 315 that is formed to overlap with the inverted U-shaped notch 312 of the cover forming portion 319 to form an insertion hole for inserting the wire harness 12, and at both ends thereof. Is provided with two round holes 314 which are fastened together with the cover forming portion 319 by the special screw 16.

Further, in the vicinity of the center of the holder 31, there are provided two bending holes 316 opened at intervals so as to facilitate bending along the control unit 11, and the ground terminal 122 is screwed by the screw 13. A nut 311 to be attached is provided near the connector 111 of the control unit 11. Also, as a bracket for mounting on the vehicle, the holder 3
The bracket portion 317 is projected from the side end portion of 1.
The bracket portion 317 includes a bracket portion 31 for the vehicle.
Round hole 3 into which a special screw 18 is inserted to screw 7
18 is formed.

In order to assemble the control unit 11 having the above structure to a vehicle or the like, the male connector 111 of the control unit 11 is used.
Insert the female connector 121 provided at one end of the wire harness 12 into the
The nut 311 of No. 1 is screwed with the screw 13. And
The control unit 11 is fixed to the holder 31 with screws or double-sided tape, and the bent hole 316 is formed so that the holder 31 is held along the control unit 11 with the wire harness 12 passing through the inverted U-shaped cut 312. Bend at two places, and bend until the cover forming part 320 of the holder 31 overlaps with the cover forming part 319. Then, the cover forming part 320 is folded so that it comes to the front surface of the cover forming part 319, and the wire harness 12 is cut into
While being inserted into the insertion hole formed by 315, the two special screws 16 are screwed to complete the assembly as shown in FIG. Further, the control unit 11 can be attached to the vehicle by inserting the special screw 18 into the round hole 318 of the bracket portion 317 provided at the side end portion of the holder 31 and screwing the screw into the vehicle.

With the above-mentioned structure, the female connector 121 is surrounded by the cover forming portions 310 and 320, so that it is very difficult to touch it with a fingertip or the like, and the connector 121 can be prevented from being pulled out. The anti-theft ability is improved. FIG. 6 is an exploded perspective view of an embodiment according to the fourth invention, FIG. 7 is an assembled side view thereof, and FIG.
FIG. 4 is an assembled perspective view. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In the present embodiment, the cover portion that covers the connector 111 of the control unit 11 is
It is formed integrally with the housing 42 of the control unit 11.

As shown in FIG. 7, the control unit 11 includes
Printed circuit board 41 on which electrical components not shown are mounted
, The male connector 111 is attached to the printed circuit board 41, and the wiring harness 1
The female connector 461 provided at one end of the second connector 2 is configured to be inserted and removed. As shown in FIG. 6, the printed circuit board 41 is provided with a plurality of insertion holes 411 for inserting the plurality of screws 43 in order to fix the printed circuit board 41 to the housing 42.

The housing 42 is formed of an iron plate, a steel plate, stainless steel or the like, and a cover forming portion 423 is formed to cover the connectors 111 and 461. The cover forming portion 4 is formed.
Two nuts 424 are provided at 23 for tightening a cover forming portion 441 of an upper lid 44 described later together with the special screw 16. Further, the housing 42 is provided with a plurality of nuts 422 to which the printed board 41 is screwed by the plurality of screws 43. The cover forming portion 423 is provided with a U-shaped notch 425 formed upward so as to pass the wire harness 46 therethrough.

The upper lid 44, which is fitted to the housing 42 and protects the printed circuit board 41 on which electrical components are mounted, is made of an iron plate, a steel plate,
A cover forming portion 441 is provided that is formed of stainless steel or the like and is overlapped with the cover forming portion 423 of the housing 42 and covers the connector 461. Further, the upper lid 44 is provided with a plurality of claws 442, and the upper lid 4 is held by holding the housing 42 by bending the claws 442 inward.
4 is fitted in the housing 42. The cover forming portion 441 of the upper lid 44 is in an open state as shown (two-dot chain line in FIG. 7), and is overlapped with the cover forming portion 423 of the housing 42 so as to be fastened together with the special screw 16. The round hole 443, the notch 425 of the cover forming portion 423, and the inverted U-shaped notch 444 that is overlapped to form an insertion hole for inserting the wire harness 46 are provided.

To assemble the control unit 11 having the above structure, the printed board 41 is screwed to the housing 42 with a plurality of screws 43, and the plurality of claws 442 of the upper lid 44 are bent inward. Assemble to hold 42. In this state, the cover forming portion 441 is open. To assemble this into a vehicle or the like, the female connector 461 provided at one end of the wire harness 46 is inserted into the male connector 111 of the control unit 11. Then, the cover forming portion 441 of the upper lid 44 in the open state
Are folded and overlapped so as to come to the front surface of the cover forming portion 423 of the housing 42. And the wire harness 46
Attached so as to pass through the insertion hole formed by the notch 425 of the housing 42 and the notch 444 of the upper lid 44, and the special screw 1
6 is screwed onto the nut 424 of the housing 42. This completes the assembly as shown in FIG. Then, a vehicle mounting bracket (not shown) may be provided as in the embodiment shown in FIG.

With the configuration as described above, the female connector 121 is provided with the cover forming portion 441 of the upper lid 44 and the housing 42.
Since it is surrounded by the cover portion formed by the cover forming portion 423, it becomes very difficult to touch with a fingertip or the like, and pulling out of the connector 121 can be prevented, and the antitheft capability is improved.

[0029]

As described above, the tip of the cord for electrically connecting the electronic device and the external device in order to prevent the connector to be inserted and removed from the external connection terminal of the electronic device mounted on the vehicle or the like. Since the connector attached to is covered with the cover, it is difficult for the fingertip to directly contact the connector, and it is difficult to pull the connector out of the external connection terminal of the electronic device. As a result, it is possible to prevent the loss of function due to the removal of the connector of the electronic device.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment according to the first invention.

FIG. 2 is an exploded perspective view of an embodiment according to the second invention.

FIG. 3 is an assembly diagram of an embodiment according to the second invention.

FIG. 4 is an exploded perspective view of an embodiment according to the third invention.

FIG. 5 is an assembly diagram of an embodiment according to the third invention.

FIG. 6 is an exploded perspective view of an embodiment according to the fourth invention.

FIG. 7 is an assembled side view of an embodiment according to the fourth invention.

FIG. 8 is an assembled perspective view of an embodiment according to the fourth invention.

[Explanation of symbols]

 11 Control Unit 111 Male Connector 12 Wire Harness 121 Female Connector 13 Screws 14 Lower Case 15 Upper Case 16 Special Screws (for Upper and Lower Case Assembly) 17 Bracket 18 Special Screws (for Bracket Attachment)

Claims (4)

[Claims] 1. A disconnection preventing structure for a connector, which is connected to an external connection terminal of an electronic device and electrically connects the electronic device and an external device, to prevent the connector from being disconnected. A cover part having an insertion hole for inserting a cord for electrically connecting a device and an external device, and the cord connected to the connector in a state where the cord is inserted into the insertion hole of the cover part. A detachment prevention structure for a connector, characterized in that the part comprises a fixing means for fixing the cover part and the electronic device so that the part covers the connector and the external connection terminal of the electronic device. 2. The connector withdrawal prevention structure according to claim 1, wherein the cover portion is integrally formed with a bracket for fixing the electronic device to a vehicle or the like. 3. The insertion hole is a closed hole formed by stacking two opening holes provided at opposite ends of the cover portion and having one open end, by folding the cover portion. The connector withdrawal prevention structure according to claim 1. 4. The connector withdrawal prevention structure according to claim 1, wherein the cover portion is integrally formed with a housing of the electronic device.