CN1092854C - Connector board holding device - Google Patents

Abstract

A connector substrate fixing device comprises a main body part, a clamping part, a stopping part and a substrate buckling part, wherein the stopping part is abutted against the bottom wall of an accommodating space of an insulating body when the main body part is installed in the insulating body of a connector, so that the main body part is smoothly positioned. The substrate buckling part is provided with an elastic arm area, a clamping area, a compression area, a buffer area and a propping area, and the compression area can avoid scratching the inner surface of the substrate relative to the jack. An inner concave surface is formed on the clamping area with the inclination, so that the clamping area can firmly clamp the substrate jack. The buffer area is provided with an inner concave surface and buffers the insertion force and the rebound force of the fixing device inserted into the substrate jack; the clamping area is arranged between the elastic arm area and the compression area; a buffer area adjacent to the substrate holding part and contacting the uppermost part of the substrate; an abutting region opposite the buffer region.

Description

Connector board holding device

The invention relates to a connector substrate holding device, in particular to a connector substrate holding device with strong structural strength and good assembly performance.

The traditional electrical connector is used to buckle the holding device on the substrate. Its structure includes at least two parts: a clamping part and a substrate buckling part. The clamping part is mostly a barb structure so that the substrate holding device can be clamped on The electrical connector is insulated within the body. As shown in FIG. 1, the substrate holding part is a pair of elastic claws 20, wherein a slot 30 is formed between the pair of claws, and each claw 20 includes an elastic support arm 22, a buckle area 24, Sharp point area 26 and lead-in area 28, when the claw 20 is intended to be buckled in the socket 15 of a substrate 10, the lead-in area 28 will first contact the outer periphery of the upper surface of the socket 15, and pass through the lead-in area The inclined surface formed by the contacting surface of 28 and the elastic compression produced by the elastic support arm 22 constrained by the insertion hole 15 can push the claw 20 into the insertion hole 15 along the way. However, the contact surface of the lead-in area 28 of the conventional claw 20 is like a blade surface, and the elastic support arm 22 will generate a horizontal rebound force after being pressed, and the insertion force in the vertical direction given by the insertion hole is very easy. Scratches on the periphery of the upper surface of the substrate socket. When the claw 20 continues to enter along the slope of the introduction area 28 until the highest point, that is, the sharp point area 26, the elastic support arm 22 at this time is also being compressed to the maximum value, correspondingly making the rebound force generated by itself Raise to the extreme, so that the sharp chamfer of the sharp point area 26 is easy to penetrate into the hole wall of the substrate insertion hole 15; if the claw 20 continues to go deeper, the hole wall of the insertion hole 15 will be further scratched. After the sharp point area 26 passes through the socket, the next step is an upwardly inclined buckle area 24 slope, which allows the claw 20 to pass through the lower surface of the insertion hole 15, but the slope of the buckle area 24 Like the introduction area 28, it has a blade-shaped contact surface, which is also easy to scratch the outer periphery of the lower surface of the socket. When the buckle 20 is vibrated in the up and down direction, the buckle 24 may reversely retreat along the slope of the original buckle area 24, so that the buckle 20 jumps off. In addition, the structure of the elastic support arm 22 of the conventional claw 20 is like a cantilever beam, and its overall width is mostly the same. Therefore, when it is inserted into the socket 15 whose aperture is smaller than the standard aperture, the root of the elastic support arm 22 may be overstressed. Concentrated and permanently deformed. For traditional connector substrate holding devices, reference can be made to Taiwan Patent Nos. 80202099, 81207106, 82204413, 82206344, 82216079, 83207936 and 84101384.

Therefore, in order to solve the above-mentioned traditional technical problems, the main purpose of the present invention is to provide a connector substrate holding device, which has a flat pressure receiving area, which can reduce the compressive stress generated when it is pressed, and avoid scratching the substrate. Relative to the inner surface of the insertion hole, and for the same hole diameter of the insertion hole, its elastic deformation is smaller than that of the traditional claw, so the probability of permanent deformation of the elastic support arm can be reduced.

In order to achieve the purpose of the present invention, a connector substrate holding device is provided, which holds the connector on the substrate. The substrate holding device includes: a main body, which is plate-shaped and has a first end edge and a second edge. Two end edges; a clamping portion, extending from the first end edge adjacent to the main body, and embedded in the electrical connector; a substrate buckling portion, buckled in the opposite socket of the substrate, which It has: an elastic arm area that provides the elasticity required for the substrate buckling portion to pass through the substrate insertion hole, and the elastic arm area is an elastic support arm extending from the second end edge of the main body portion; a pressure-receiving area , connecting one end of the elastic arm area and being a raised area with a flat top that can reduce the rebound compressive stress on the substrate socket; a clamping area, which is arranged between the elastic arm area and the pressure receiving area a buffer zone, which is adjacent to the uppermost part of the substrate holding part contacting the substrate; and an abutment zone, which is opposite to the buffer zone.

The present invention also provides a connector equipped with the above-mentioned connector substrate holding device, which has: an insulating body with a receiving space; a substrate holding device that can fix the electrical connector on the substrate, and the fastening portion , is a barb extending from the first end edge of the main body and embedded in the electrical connector receiving space.

The advantage of the device of the present invention is that its elastic support arm is not easy to be permanently deformed, the device will not fall off from the base plate when it is shaken, it is easy to use, easy to locate and not easy to damage; in addition, the present invention has a clamping system with a specific slope area, between the elastic arm area and the pressure area, the clamping part is formed with an inner concave surface, so that the clamping area can firmly clamp the periphery of the lower surface of the substrate insertion hole, so that the substrate holding device It is not easy to fall off from the substrate when it is shaken; in addition, the present invention also has a buffer zone, which is adjacent to the initial position where the buckling part of the substrate contacts the substrate, and the buffer zone is formed by the junction of two curved surfaces, wherein the junction of the curved surfaces forms a There is an inner concave surface to buffer the insertion force and rebound force of the substrate holding device inserted into the substrate insertion hole, thereby avoiding scratches on the periphery of the upper surface of the substrate insertion hole; in addition, the present invention also has a stopper to make the substrate holding device When the main body part is put into the accommodating space of the insulating body, it abuts against the side wall of the accommodating space, so that the main part can be positioned smoothly.

Embodiments of the present invention are described below in conjunction with the accompanying drawings, wherein:

1 is a cross-sectional view of a conventional connector substrate holding device, showing the situation before and after the substrate holding device is inserted into a substrate jack;

2A is a front view of the connector substrate holding device of the present invention;

2B is a side view of the electrical connector substrate holding device of the present invention;

3 is a partial cross-sectional view of the connector substrate holding device of the present invention installed in the insulating housing, showing the situation before and after the substrate holding device is inserted into the substrate insertion hole.

The substrate holding device 200 of the connector 10 of the present invention as shown in Figure 3 is suitable for connectors of general electronic devices such as computer hosts or their peripheral equipment. For ease of understanding, only a part of the connector 10 is used in this embodiment The insulating housing 100 is illustrated.

The substrate holding device 200 shown in FIG. 2A and FIG. 2B is used to hold the connector 10 on the substrate 30, and the substrate holding device 200 includes: a main body part 210, a stopper part 220, a clamping part 230 and a substrate The buckle part 240, wherein the main body 210 is plate-shaped, has two opposite first end edges 212, a second end edge 214 and a third end edge 216, wherein the second end edge 214 and the third end edge 216 are opposite to each other, and the two first end edges 212 are located on the left and right sides between the second end edge 214 and the third end edge 216 . The fastening portion 230 is a pair of barb structures, which respectively extend from the left and right first end edges 212 of the main body portion 210, and are embedded in two opposite side walls of the accommodating space 120 of the insulating body 100 ( As shown in Figure 3).

A pair of stoppers 220 extend and protrude from both ends of the third end edge 216 of the main body 210 respectively, and form a strip breaking area 2122 integrally connecting a strip (not shown) between the pair of stoppers 220 , wherein A gap 2124 is further formed between each stop portion 220 and the strip breaking area 2122 to separate the stop portion 220 from the strip breaking area 2122, so that the stress can be concentrated on the strip breaking area 2122 and easy to bend . Therefore, as shown in FIG. 3 , when the main body 210 is put into the receiving space 120 of the insulating body 100, the stopper 220 can abut against the bottom wall of the receiving space 120, so that other parts of the main body 210 It is smoothly positioned at a corresponding position in the storage space 120 .

As shown in FIG. 2A , FIG. 2B and FIG. 3 , a pair of substrate buckling parts 240 extend outward from the second end edge 214 of the main body part 210 so that its position is opposite to the stop part 220 , A slot 2412 is formed between the pair of substrate holding portions 240, wherein each substrate holding portion 240 can be divided into an elastic arm area 2402, a clamping area 2404, a pressure receiving area 2406, a buffer zone 2408 and an abutting area 2410, wherein The elastic arm region 2402 is an elastic arm structure extending from the second end edge 214 of the main body 210 to provide the required elasticity when the substrate buckling portion 240 passes through the insertion hole 32 of the substrate 30 . The pressure receiving area 2406 is connected to one end of the elastic arm area 2402 and is substantially a raised area with a flat top, so that when the pressure receiving area 2406 is pressed by the wall of the insertion hole 32 of the substrate 3 , Because the pressure area 2406 can provide a larger pressure area, it can reduce its rebound stress on the inner wall of the socket 32, and avoid scratching the inner wall surface; When inserting and pulling out the socket 32 with the same diameter, the elastic deformation of the elastic arm region 2402 of the present invention is smaller than that of the conventional claw, thus reducing the probability of permanent deformation of the elastic arm region 2402 . The clamping area 2404 is a curved surface with a specific slope, and is located between the spring arm area 2402 and the pressure receiving area 2406, wherein a first inner concave surface 2405 is formed near the middle of the clamping area 2404 , so that the clamping area 2404 can securely clamp the periphery of the lower surface 324 of the substrate insertion hole 32 . The buffer zone 2408 is located at the end of the substrate holding part 240 and close to the uppermost position of the periphery of the upper surface 322 of the contact substrate insertion hole 32. It is mainly formed by connecting two curved surfaces, wherein the junction of the curved surfaces is a first Two inner concave surfaces 2409, which can buffer the vertical insertion force exerted by the substrate holding device 200 when inserted into the substrate insertion hole 32 and the horizontal rebound force generated by the elastic arm region 2402 under pressure, so as to avoid scratching the substrate The periphery of the upper surface 322 of the socket. The abutment area 2410 is opposite to the buffer zone 2408 and extends toward the slot 2412, so that when the pair of substrate holding portions 240 are pressed and approach each other, the elastic deformation increases to a certain amount Each abutment area 2410 of the pair of substrate holding parts 240 will be relatively abutted, so that the pressures in two opposite horizontal directions respectively acting on the pair of substrate holding parts 240 cancel each other out, preventing the pair of substrate holding parts 240 from 240 further permanent deformation. It should be noted that, as shown in FIG. 2A , the elastic arm area 2402 has an overall width gradually narrowing from the width, extending from the integral connection with the second end edge 214 of the main body 210 to the integral connection with the clamping area 2404 , The shear stress and bending stress of the spring arm region 2402 will be evenly distributed on the overall structure of the substrate holding portion 240, thereby preventing the bending stress and shear stress acting on the spring arm region 2404 from being excessively concentrated on the second part of the elastic arm region 2404 and the main body 210. The joint of the end edge 214 is permanently deformed.

Claims (11)

1. A connector substrate holding device, which holds the connector on the substrate, characterized in that the substrate holding device includes: a main body, which is plate-shaped and has a first end edge and a second end edge The fastening part extends from the first end edge adjacent to the main body part, and is embedded in the electrical connector; the substrate buckling part is buckled in the opposite socket of the substrate, which has: providing The spring arm area required for elasticity when the substrate buckling part penetrates the substrate insertion hole, the elastic arm area is an elastic support arm extending from the second end edge of the main body part; the pressure receiving area is connected to the One end of the elastic arm area is a raised and flat top area that can reduce the rebound compressive stress on the substrate jack; the clamping area is located between the elastic arm area and the pressure-receiving area; buffer an area, which is adjacent to the uppermost part of the substrate holding part contacting the substrate; and an abutment area, which is opposite to the buffer zone. 2 . The connector substrate holding device according to claim 1 , wherein the main body further comprises a third end edge serving as a breaking area of the strip. 3 . 3. The connector board holding device according to claim 1, wherein the fastening portion is a barb. 4. The connector substrate holding device according to claim 1, wherein the clamping area is a curved surface with a certain inclination, which has a feature that enables the clamping area to clamp the periphery of the substrate insertion hole. first concave surface. 5. The connector substrate holding device according to claim 1 or 4, wherein a second inner concave surface is formed on the buffer zone. 6. The substrate holding device of the connector according to claim 1, wherein the abutment area extends toward the slot, and when the pair of substrate holding parts are relatively elastically deformed to a certain deformation When measuring, each abutment area of the pair of substrate holding parts will be relatively abutted against, preventing excessive deformation of the pair of substrate holding parts. 7. The connector board holding device as claimed in claim 2, wherein the buffer zone is formed by connecting a plurality of curved surfaces. 8. A connector equipped with the connector substrate holding device as claimed in claim 1, comprising: an insulating body having a receiving space; a substrate holding device capable of fixing the electrical connector on the substrate, the card The solid portion is a barb extending from the first edge of the main body and embedded in the electrical connector receiving space. 9. The connector according to claim 8, wherein the substrate holding device further comprises a stopper extending from the main body toward the side arm of the receiving space, and engaging with the substrate holding portion Opposite to each other, when the main body is put into the housing space of the insulating body, the stopper part can abut against the side wall of the housing space, so that the main body and the fastening part can be smoothly positioned in the housing space. inside the containment space. 10 . The connector substrate holding device according to claim 9 , wherein the main body further comprises a third end edge serving as a strip breaking area. 11 . 11 . The connector board holding device according to claim 10 , wherein there is a gap between the strip breaking area of the third end edge and the stopper portion. 12 .

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