JPH0246068Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a connector for electrically connecting the inside and outside of a housing, and is used to protect a circuit board when a connector inside the housing is attached to a wiring board. Regarding structure.

[Conventional technology]

The conventional structure of this type of connector part will be explained with reference to FIG. A female connector 3 is disposed on the front surface of a wiring board 2 that is attached and fixed to the circuit board 2 and has printed wiring, for example, and a male connector is inserted through the hole 4 of the housing 1 provided above the insertion opening where the female connector 3 is connected. 5 to the female connector 3 from a direction parallel to the wiring board 2, and a locking arm 6 formed at the tip of the locking arm 6 integrally provided on the male connector 5 to prevent it from coming off. The retaining claw 7 is engaged with a retaining portion 8 provided protrudingly from the female connector 3. Note that 9 is a cord coming out of the male connector, and 10 is an attachment part that protrudes from the female connector 3, is inserted into a hole provided in the wiring board 2, and has its tip thermally welded to the rear surface of the wiring board 2. Reference numeral 11 denotes a pin terminal that electrically connects the male connector 5 and the wiring board 2 via the female connector 3.

[The problem that the idea attempts to solve]

By the way, when manufacturing or repairing instruments, circuits, etc. to be housed in the housing 1, there are cases where the male connector 5 has to be disconnected. 1 to the locking arm 6 through the hole 4,
While pressing this locking arm with the bar 12 in a direction to release the lock between the locking claw 7 and the locking portion 8, press the male connector 5.
I'm trying to pull it out. However, at this time, the stress received from the bar 12 is transmitted from the locking arm 6 to the wiring board 2 via the female connector 3, resulting in cracks in the printed wiring on the wiring board 2 or damage to the soldered parts. Disconnection may occur due to separation, and when the stress applied from the bar 12 is large, the wiring board 2 may be damaged.

[Purpose of invention]

The present invention has been devised by focusing on the problems of the conventional example, and when releasing the coupling of the male and female connectors by releasing the locking state of the locking arm and the locking part, An object of the present invention is to provide a board protection structure capable of preventing an adverse effect on a wiring board due to a pressing force when a stop arm is deformed in a direction perpendicular to the wiring board.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a housing that accommodates instruments that operate by receiving electrical signals from the outside or circuits that process the electrical signals, and a wiring board that is installed and fixed inside the housing. a female or male connector disposed on the wiring board; a hole provided in the housing opposite to the connection point of the connector; and a hole connected to the female or male connector from a parallel direction of the wiring board through the hole. a male or female connector, one of the male and female connectors is provided with a locking arm that is elastically deformable in a direction perpendicular to the wiring board, and one of the male and female connectors is provided with a locking arm that is elastically deformable in a direction perpendicular to the wiring board; A locking portion is formed to lock and prevent the male and female connectors from coming off, and the inner side of the housing is configured to block the pressing movement direction of the locking arm when the locking arm and the locking portion are released from each other. A board protection part is integrally formed in the board protection part, and the wiring board is arranged at a position such that the surface of the wiring board on the downstream side in the pressing movement direction is in contact with or has a small distance from the board protection part. It is something.

〔Example〕

Hereinafter, the present invention will be described in detail based on examples.

FIG. 2 is a sectional view showing an embodiment of the present invention. In the figure, the same components as those shown in FIG. 1 are given the same reference numerals, and their explanations will be omitted.

Reference numeral 20 denotes a substrate protection wall as a substrate protection section formed integrally with the housing 1 inside the housing 1. This board protection wall 20 is the housing 1
It is provided so as to be in contact with the rear surface of the inner wiring board 2, and therefore, when removing the male connector 5 from the female connector 3, the locking arm 6 is moved from the front to the rear using the bar 12 (in the direction of the arrow in the figure). Press the wiring board 2 at this time.
Even if stress is applied to the substrate, the surface of the wiring board 2 on the downstream side in the direction of pressure movement, that is, the rear surface, is in contact with the board protection wall 20 formed to block this direction of pressure movement, so that the wiring board 2 is moved in the direction of pressure movement. This has the effect that movement along the wire is suppressed and deformation is less likely to occur, and therefore electrical circuit breakage and damage to the wiring board 2 are less likely to occur. In addition, when the locking force between the locking claw 7 and the locking portion 8 is strong, in the conventional case, the bar 12
According to the configuration of this embodiment, the wiring board 2 is deformed when the locking arm 6 is pressed, so that the lock between the locking claw 7 and the locking part 8 is difficult to disengage. 2 hits the board protection wall 20 and is difficult to deform, so the locked state is easier to release than before, and the male connector 5
It also has the effect of making it easier to pull out.

FIG. 3 shows another embodiment of the present invention, in which a locking arm 6A is provided on the female connector 3, a locking claw 7A is provided at the tip of the locking arm 6A, and one end of the upper surface of the male connector 5 is provided as a locking portion 8A. We are using. Moreover, 20A is a substrate protection wall as a substrate protection part, and is formed so as to be positioned with a small distance from the substrate 2.

In order to pull out the male connector 5 in this configuration, the bar 12 is placed against the locking claw 7A and pressed from the rear to the front (in the direction of the arrow in the figure), and the locking arm 6A is deformed and the locking claw 7A is pulled out. The male connector 5 is pulled out while releasing the lock from the locking portion 8A. At this time, the locking arm 6A is pushed forward by the pressure of the bar 12, and the wiring board 2 receives stress directed toward the board protection wall 20A along the direction of this pushing movement, but the wiring board 2 is Even if the substrate protection wall 20A is slightly deformed until it comes into contact with the downstream surface in the pressing movement direction of the substrate protection wall 20A located at a distance, in this case the front surface, the substrate protection wall 20A will continue to move in the pressing movement direction. Since it is blocked, it is difficult to deform, and therefore, the structure of this embodiment can also provide the same effects as the above embodiment.

FIG. 4 shows still another embodiment of the present invention, in which case a substrate protection rib 20 as a substrate protection portion is shown.
B is integrally formed inside the housing 1.

In this way, the same effect as in the above two embodiments can be obtained even if the substrate protection part is not formed as a wall as in the above two embodiments but is formed as a pin.

Further, as shown in FIG. 5, board protectors 20C may be provided on both sides of the wiring board 2.

Note that the connector to be attached to the wiring board may be attached to the wiring board in any manner. Further, the locking between the male connector and the female connector may be other than that shown in the above embodiment, and furthermore, in order to release this locking, it is not necessary to use a bar material as shown in the above embodiment. The present invention can be applied to anything to which stress is applied.

Furthermore, although the above embodiment shows a case in which the female connector is attached to the wiring board and the male connector is inserted from the outside, it is also possible to attach the male connector to the wiring board and insert the female connector from the outside. Can apply ideas. Furthermore, it goes without saying that various elements may be attached to the wiring board.

[Effect of idea]

As described above, the present invention includes a housing that houses instruments that operate by receiving electrical signals from the outside or circuits that process the electrical signals, and a wiring board that is installed and fixed inside the housing. A female or male connector disposed on the wiring board, a hole provided in the housing opposite to the connection point of the connector, and a male or male connector connected to the female or male connector from a parallel direction of the wiring board through the hole a female connector, a locking arm that is elastically deformable in a direction perpendicular to the wiring board is formed on one of the male and female connectors, and the locking arm is locked on one of the other of the male and female connectors. to form a locking portion that prevents the male and female connectors from coming off, and a substrate is provided inside the housing so as to block the pressing movement direction of the locking arm when the locking arm and the locking portion are released from each other. By integrally forming a protection part and arranging the wiring board at a position such that the surface of the wiring board on the downstream side in the pressing movement direction is in contact with the board protection part or at a small distance from the board protection part, When releasing the lock when pulling out the connector from the outside, the wiring board may be deformed, causing wiring cracks on the wiring board or soldering parts to come apart, cutting the electrical circuit or damaging the board itself. It can be prevented.

Further, in some cases, it is possible to achieve a substrate protection structure having such effects that the substrate protection portion can also be used for positioning when assembling instruments and the like.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a main part of a conventional example, Fig. 2 is a sectional view of a main part of an embodiment of the present invention, and Figs. 3 to 5 are sectional views of main parts of other embodiments of the present invention. be. 1: Housing, 2: Wiring board, 3: Female connector, 4: Hole, 5: Male connector, 6, 6A: Locking arm, 7, 7A: Locking claw, 8, 8A: Locking part, 9:
Code, 12: Bar material, 20, 20A, 20B, 2
0C: Board protection part.

Claims (1)

[Scope of utility model registration request] A housing that houses instruments that operate by receiving electrical signals from the outside or circuits that process the electrical signals, a wiring board that is installed and fixed inside the housing, and a female that is installed on the wiring board. Alternatively, the male and female connectors include a male connector, a hole provided in the housing opposite to a connection point of the connector, and a male or female connector connected to the female or male connector from a parallel direction of the wiring board through the hole. A locking arm that is elastically deformable in a direction perpendicular to the wiring board is formed on one of the connectors, and the locking arm is locked to the other of the male and female connectors to prevent the connector from slipping out between the male and female connectors. forming a locking part to join,
A substrate protection portion is integrally formed inside the housing so as to block the pressing movement direction of the locking arm when the locking arm and the locking portion are released, and the wiring is connected to the substrate protection portion. A board protection structure in which the wiring board is arranged at a position where downstream surfaces of the board in the pressing movement direction are in contact with each other or are spaced apart from each other by a small distance.