JPH0717850Y2 - Clip for electrical parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Purpose of the Invention (Industrial Field of Application) The present invention relates to a clip for an electric component, and more specifically, for example, coupling of a connector housing having contacts arranged and housed to a printed circuit board. A clip for holding a state.

(Prior Art and Problems Thereof) Conventionally, a clip has been put to practical use as a means for holding the connected state of a connector housing in which contacts are arranged and housed and a printed circuit board. Compared to screws, clips are easier to install, but when the clip itself or the part to which it is attached receives an external force such as an impact, it moves through the through-hole, which is the part to be attached, or backlash. This may result in deterioration or loss of retention function. In such a case, there is no guarantee that the combined state of the housing and the printed circuit board will be maintained reliably, and there is a risk that the two will separate and cause contact failure of the contacts.

An object of the present invention is to provide a clip that can reliably hold the above-mentioned coupled state and that does not pull out unless artificial pulling force is applied.

(2) Configuration of the Invention (Means for Solving the Problems) The present invention has an electric component, and has a concentric first through hole that is divided into a small diameter portion and a large diameter portion through a step portion. And a second through hole of the printed circuit board, the clip for electrical parts that attaches the electric component to the printed circuit board by inserting into the printed circuit board.

According to the present invention, on the premise, a plurality of first locking portions that are inserted into the first through hole and that are located at the large diameter portion of the first through hole and that engage with the stepped portion are provided on the outer circumference. And a circular annular base portion spaced apart from each other, extending from one side edge of the annular base portion to the electric component side, penetrating the small diameter portion of the first through hole and engaging with an outer peripheral edge of the small diameter portion. A plurality of first elastic leg pieces having second locking portions, and extending from the other side edge of the annular base portion to the printed circuit board side, penetrating the large diameter portion of the first through hole, and It is an object of the present invention to solve the above-mentioned problems by the clip having a one-piece structure including a plurality of second elastic leg pieces that engage with the second through holes of the printed circuit board.

(Embodiment) The present invention will be described based on the illustrated preferred embodiment.
It is as follows.

1 to 3, a clip 1 is made of metal, synthetic resin or the like, and has a circular annular base portion 2 and both side edges thereof in a direction intersecting the base portion at predetermined intervals in the circumferential direction of the base portion. And leg pieces 3 extending from 2a and 2b.

The leg piece 3 and the elastic leg piece 5 having the locking portion 4 that is bent in a substantially U shape are bent outward with a relatively large opening angle at a substantially central portion in the longitudinal direction, and the V-shaped bending concave surface faces each other. The elastic leg pieces 6 are bent so that

Further, the clip 1 has an elastic locking portion 7 that is obliquely cut and raised so as to face the locking portion 4 at the central portion where the base portion 2 and the leg piece 3 intersect.

As in the illustrated example, three or more leg pieces 3 are preferably formed, but at least two leg pieces 3 are preferably arranged at opposing positions.

As shown in FIG. 4, the clip 1 holds the electrical connector housing 9 in which a large number of contacts 8 are arranged and housed, and the printed circuit board 10 in a coupled state.
It is used to engage the through hole 11 formed in them.

In FIGS. 5-A to 5-C, usage examples and functions of the clip 1 are shown. The through hole 11 of the housing 9 is formed concentrically and is divided by the stepped portion 11a into a small diameter portion 11b.
And a large diameter portion 11c.

As shown in FIG. 5-A, the clip 1 is inserted into the through hole 11 from below with the locking portion 4 facing upward.

As shown in FIG. 5-B, when the clip 1 is further pushed in the inserted state, the leg piece 5 is pinched inward against the pressure expanding elasticity and the locking portion 7 is stepped. Press against 11a.

As shown in FIG. 5-C, when the clip 1 is further pushed in, the locking portion 4 projects from the upper edge of the small diameter portion 11b of the through hole 11 and engages with the upper edge, and the leg piece 5 is restored. , The locking portion 7 is pressed against the stepped portion 11a against the elasticity and pushed open,
The clip 1 is locked to the housing 9.

Next, when the clip 1 of the housing 9 is aligned with the through hole 12 of the printed circuit board 10 and the housing 9 is pressed against the printed circuit board 10, the leg piece 6 of the clip 1 is inserted into the through hole of the printed circuit board 10.
It is clamped by 12. When the housing 9 is further pushed into the printed circuit board 10, the leg piece 6 expands due to its elasticity as shown in FIG. The housing 9 is held in a fixed state.

(3) Effects of the Invention The clip according to the present invention holds the connector housing having the contacts and the electrical components such as the printed circuit board in a coupled state, and therefore, when mounted in the through holes, the clip is mounted in any of the up, down, left and right directions. Does not move or rattle, and does not press the printed circuit board side while applying a pinching force inward to the locking part that intentionally engages with the outer edge of the through hole of the electric component. As long as it does not come off from the through hole.

In addition, the leg portions of the clip extending toward the electric component side and the printed circuit board side have a circular annular base portion therebetween, so that an external force is applied to one of the leg portions, for example, pushing the clip inward. When pressure is applied, the pressing force is not directly transmitted to the other of the leg pieces. Therefore, even if such an external force is applied to one of the two leg pieces, the clip does not accidentally pull out from the through hole.

Also, in the clip according to the present invention, a plurality of first and second leg pieces extend from both side edges of a circular annular base portion, a first locking portion is provided on the base portion, and a first engaging portion is provided on the first leg piece. Compared to, for example, a clip having only two locking parts and provided with elastic locking pieces (parts) on the side surface of the cylindrical body, less material is required, nevertheless the base part is As a center, it provides a robust structure in which each leg is held together and elastically deforms to fit freely into the through holes of the electrical component. Moreover, since the material has a simple structure with few materials, it has a low thermal conductivity and a high heat dissipation rate.

Therefore, the clip according to the present invention is suitable as a clip for easily connecting an electric component, particularly an electric connector, and a printed circuit board and securely holding the connected state.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the clip of the present invention. FIG. 2 is a side view of the clip. FIG. 3 is a plan view of the clip. FIG. 4 is a partial perspective view of a housing in which a contact is housed and a printed circuit board, which is an example of an electric component in which the clip is to be used. 5A to 5D are cross-sectional views of a process of mounting the clip on the electric component. 1: Clip 2: Base 4: Second locking part 5: First leg piece 6: Second leg piece 7: First locking part 9: Electrical component 10: Printed circuit board 11: First transparent part Hole 11a: Stepped portion 11b: Small diameter portion 11c: Large diameter portion 12: Second through hole

Claims (1)

[Scope of utility model registration request] 1. An electric component has a concentric first through hole which is divided into a small diameter portion and a large diameter portion through a step portion, and is inserted into a second through hole of a printed circuit board. Thus, in the clip for electric component for attaching the electric component to the printed circuit board, the clip is inserted into the first through hole and is positioned at the large diameter portion of the first through hole and engages with the step portion. A circular annular base portion having a plurality of first locking portions spaced apart from each other on the outer circumference, and a portion extending from one side edge of the annular base portion to the electric component side and penetrating the small diameter portion of the first through hole. A plurality of first elastic leg pieces having a second locking portion that engages with the outer peripheral edge of the small diameter portion, and extends from the other side edge of the annular base portion to the printed circuit board side,
A plurality of second elastic leg pieces penetrating the large diameter portion of the first through hole and engaging with the second through hole of the printed circuit board; clip.