Elastic sheet connector

Abstract

An elastic sheet connector comprises a substrate, a tensioning part formed by reversely bending from the rear end of the substrate, an elastic arm formed by obliquely extending from the tensioning part to the front upper side, and a supporting arm formed by bending and extending from the front end edge of the elastic arm to the substrate, the elastic arm comprises a horizontal part which is formed by horizontally extending from the front direction of the tensioning part, an inclined arm which is formed by obliquely extending from the horizontal part to the front upper part, a contact part which is formed by bending the inclined arm downwards and then obliquely extending to the front upper part, and a contact convex hull which is formed by protruding from the upper surface of the contact part; and a lifting bend is formed at the bent part of the contact part and the inclined arm. The elastic sheet connector is not easy to damage and long in service life.

Description

Technical Field

[0001] This application relates to the field of electrical connectors, and particularly to a shrapnel connector. Background Art

[0002] Application No. 202021013792.3 discloses a shrapnel connector, which includes a substrate, an elastic force arm bent from one end of the substrate, and a support arm bent and extended from the top of the elastic force arm toward one side of the substrate. The elastic force arm includes a horizontally extended horizontal portion, a contact portion obliquely extending upward from the horizontal portion and abutting against an external electronic component, and a contact protrusion protruding upward from the contact portion. The support arm includes a support arm bent and extended from the end of the elastic force arm toward one side of the substrate. The bending position of the support arm and the elastic force arm is located on one side of the front upper part of the contact protrusion. When the docking electronic component is pressed downward, it may first contact the bending position, and the bending position is the movement fulcrum. If it is subjected to downward hard pressure multiple times, it is easy to break. Utility Model Content

[0003] In view of this, it is necessary to provide a shrapnel connector with reliable connection and stable life.

[0004] To solve the above technical problems, this application provides a shrapnel connector, which includes a substrate, a tensioning portion bent backward from the rear end of the substrate, an elastic arm obliquely extending forward and upward from the tensioning portion, and a support arm bent and extended from the front edge of the elastic arm toward the substrate. The elastic arm includes a horizontally extended horizontal portion from the front of the tensioning portion, an inclined arm obliquely extending forward and upward from the horizontal portion, a contact portion obliquely extending forward and upward after being bent downward from the inclined arm, and a contact bump protruding from the upper surface of the contact portion. An upward bending is formed at the bending position of the contact portion and the inclined arm.

[0005] Preferably, the inclination angle of the contact portion is smaller than that of the inclined arm, and the contact bump is formed by stamping and protruding upward from the contact portion.

[0006] Preferably, the upward bending makes the highest point of the contact bump higher than the highest point of the front edge of the contact portion.

[0007] Preferably, the support arm includes a first support arm bent and extended downward from the front edge of the contact portion, a connecting portion formed at the bending position of the contact portion and the first support arm, a second support arm bent and extended backward from the lower end of the first support arm, and a support end portion bent from the end of the second support arm.

[0008] Preferably, the front end of the contact portion is formed by vertically bending downward, and the bending R angle of the connection portion is made smaller to enhance the toughness of the connection portion, and the first support arm is formed by vertically extending downward.

[0009] Preferably, the second support arm extends obliquely backward and downward, the support end abuts against the substrate, and a stress bending portion is formed at the junction of the first support arm and the second support arm. When the elastic piece is pressed down, the stress bending portion deforms under stress to reduce the stress on a part of the connection portion.

[0010] Preferably, the lateral widths of the lower part of the first support arm and the upper part of the second support arm are narrowed.

[0011] Preferably, a first bend is formed at the bend between the tensioning portion and the substrate, and a second bend is formed at the bend between the tensioning portion and the elastic arm.

[0012] Preferably, the elastic piece connector further includes wing portions formed by bending upward from the two lateral sides at the front end of the substrate. The wing portions include connecting portions formed by bending upward from the two lateral sides of the substrate, wing portion bodies formed by continuously extending upward from the connecting portions, and a preloading space formed between the rear ends of the wing portion bodies and the substrate.

[0013] Preferably, a preloaded portion is formed by extending the lower part of the second support arm laterally outward, and the preloaded portion extends into the preloading space.

[0014] In the elastic piece connector of the present application, the contact portion is formed by bending downward and then extending at the end of the inclined arm of the elastic arm, so that the inclination angle of the contact portion becomes smaller, thereby making the top surface of the contact convex protrude above the front edge of the contact portion, avoiding the object from initially pressing against the front edge of the contact portion.

[0015] At the same time, the front edge of the contact portion bends downward and extends to form a vertically downward first support arm, thereby making the bending R angle at the connection portion slower and avoiding being fractured. Then, the lower end of the first support arm bends backward to form a second support arm, and a stress bending portion is formed at the bend between the first support arm and the second support arm. The force of the stress bending portion is used to partially replace the pressure borne by the connection portion to protect the connection portion from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0017] Figure 1 is a perspective view of the elastic piece connector of the present application;

[0018] Figure 2 This is the front view of the shrapnel connector of the present application;

[0019] Figure 3 is the sectional view along Figure 2 the dashed line A-A shown.

[0020] Description of the reference numerals

[0021] Substrate - 10; Tension part - 20; First bend - 21; Second bend - 22; Elastic arm - 30; Horizontal part - 31; Tilted arm - 32; Contact part - 33; Lifting bend - 34; Contact convex hull - 35; Support arm - 40; First support arm - 41; Connection part - 42; Second support arm - 43; Support end - 44; Force-bearing bend part - 45; Pre-compressed part - 46; Wing part - 50; Connection part - 51; Wing part main body - 52; Pre-compression space - 53. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0023] The present application takes Figure 1 the left side in the X direction shown as the lateral direction, the front in the Y direction as the longitudinal direction, and the upper side in the Z direction as the vertical direction.

[0024] Please refer to Figures 1 to 3 as shown, the shrapnel connector of the present application includes a substrate 10, a tension part 20 formed by bending from the tail of the substrate 10, an elastic arm 30 extending forward from the top of the tension part 20, a support arm 40 formed by bending from the top of the elastic arm 30 towards the substrate 10, and wing parts 50 formed by bending upward from the front side of the substrate 10 on both lateral sides of the elastic arm 30.

[0025] The tension part 20 includes a first bend 21 formed by bending from the substrate 10 and a second bend 22 formed at the top of the tension part 20 for bending and connecting the elastic arm 30. In a specific implementation, the height of the tension part 20 can be compressed, that is, one bend can replace the tension part 20, the first bend 21 and the second bend 22.

[0026] The elastic arm 30 includes a horizontal portion 31 formed by horizontally extending forward from the tensioning portion 20, an inclined arm 32 formed by obliquely extending forward and upward from the horizontal portion 31, a contact portion 33 formed by bending downward from the inclined arm 32 and then obliquely extending forward and upward, a contact convex hull 35 formed by stamping upward from the contact portion 33, and a lifting bend 34 formed at the bending position between the inclined arm 32 and the contact portion 33. The contact portion 33 is in an inclined state. Although the contact convex hull 35 protrudes from the surface of the contact portion 33, due to the thickness of the plate, the height by which the contact convex hull 35 protrudes upward is limited. And the front end of the contact portion 33 bends downward, making the horizontal height of the front end of the contact portion 33 relatively high, which may be higher than the horizontal height of the contact convex hull 35. As a result, when the contact object docked with the elastic sheet of the present application first presses against the front edge of the contact portion 33, it may cause damage to the bending position between the front end of the contact portion 33 and the support arm 40. Therefore, the contact portion 33 bends downward at the position where it is combined with the inclined arm 32 to form the lifting bend 34, so as to reduce the inclination angle of the contact portion 33 and make the top of the contact convex hull 35 higher than the front end portion of the contact portion 33, avoiding damage caused by the contact object pressing against the front edge of the contact portion 33.

[0027] The support arm 40 includes a first support arm 41 formed by bending downward and extending from the contact portion 33, a connecting portion 42 formed at the bending position between the first support arm 41 and the contact portion 33, a second support arm 43 formed by bending backward from the end of the first support arm 41 and then extending toward the substrate 10, a support end portion 44 formed by bending the end of the second support arm 43, and a pre-pressed portion 46 formed by extending laterally from both sides of the lower part of the second support arm 43. A stress bending portion 45 is formed between the first support arm 41 and the second support arm 43. The support end portion 44 contacts and supports the substrate 10. The lateral widths of the lower part of the first support arm 41 and the upper part of the second support arm 43 are narrowed, making the stress bending portion 45 easier to bend compared to the connecting portion 42 to protect the connecting portion 42 and making the connecting portion 42 not easily cracked.

[0028] The wing portion 50 includes a connecting portion 51 formed by bending upward from both lateral sides of the front end of the substrate 10, a wing main body 52 formed by extending upward from the connecting portion 51, and a pre-pressed space 53 formed between the rear side of the wing main body 52 and the substrate 10. The pre-pressed portions 46 on both lateral sides of the second support arm 43 are restricted within the pre-pressed space 53.

[0029] In the shrapnel connector of the present application, the contact portion 33 is formed by bending downward and then extending at the end of the inclined arm 31 of the elastic arm 30, so that the inclination angle of the contact portion 33 becomes smaller, thereby making the top surface of the contact convex hull 35 higher than the front edge of the contact portion 33, and avoiding the front edge of the contact portion 33 being crimped at the beginning by an object.

[0030] Meanwhile, the front edge of the contact portion 33 is bent downward and extended to form a first support arm 41 vertically downward, so that the bending R angle at the joint portion 42 becomes gentler and is prevented from being fractured. Then, the lower end of the first support arm 41 is bent backward to form a second support arm 43, and a force-bearing bending portion 45 is formed at the bending portion between the first support arm 41 and the second support arm 43. The force of the force-bearing bending portion 45 is used to partially replace the pressure borne by the joint portion 42 to protect the joint portion 42 from being damaged.

[0031] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0032] The above embodiments only represent the preferred embodiments of the present invention, and the description thereof is relatively specific and detailed, but it should not be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A spring connector, comprising a substrate, a tensioning portion formed by reverse bending from the rear end of the substrate, an elastic arm extending obliquely forward and upward from the tensioning portion, and a support arm extending from the front end edge of the elastic arm toward the substrate, characterized in that: The elastic arm includes a horizontal portion extending horizontally forward from the tensioning portion, an inclined arm extending obliquely forward and upward from the horizontal portion, a contact portion extending obliquely forward and upward after the inclined arm is bent downward, and a contact bulge protruding from the upper surface of the contact portion, wherein the contact portion and the bending point of the inclined arm form an upward lifting bend.

2. The spring connector according to claim 1, characterized in that: The inclination angle of the contact portion is smaller than the inclination angle of the inclination arm, and the contact convex bump is formed by stamping and protruding upward from the contact portion.

3. The spring connector according to claim 2, characterized in that: The upward bend makes the highest point of the contact convex hull higher than the highest point of the front end edge of the contact portion.

4. The spring connector according to claim 3, characterized in that: The support arm includes a first support arm formed by bending downward and extending from the front end edge of the contact portion, a connecting portion formed at the bending point between the contact portion and the first support arm, a second support arm formed by bending backward and extending from the lower end of the first support arm, and a support end portion formed by bending from the end of the second support arm.

5. The spring connector according to claim 4, characterized in that: The front end of the contact portion is formed by vertically bending downward, and the bending R angle of the connecting portion is reduced to enhance the toughness of the connecting portion. The first supporting arm is formed by extending vertically downward.

6. The spring connector according to claim 5, characterized in that: The second support arm extends obliquely downward and rearward, the support end abuts against the base plate, and a force-bending portion is formed at the junction of the first support arm and the second support arm. When the spring sheet is pressed downward, the force-bending portion is deformed to reduce part of the force on the connecting portion.

7. The spring connector according to claim 5, characterized in that: The lateral widths of the lower portion of the first support arm and the upper portion of the second support arm are narrowed.

8. The spring connector according to claim 5, characterized in that: The tensioning portion and the base plate bend form a first bend, and the tensioning portion and the elastic arm bend form a second bend.

9. The spring connector according to claim 5, characterized in that: The spring connector also includes a wing portion formed by bending upward from both lateral sides of the front end of the substrate, and the wing portion includes a connecting portion formed by bending upward from both lateral sides of the substrate, a wing body formed by continuing to extend upward from the connecting portion, and a pre-compression space formed between the rear end of the wing body and the substrate.

10. The spring connector according to claim 9, characterized in that: The lower portion of the second support arm extends laterally outward to form a pre-pressed portion, and the pre-pressed portion extends into the pre-pressed space.

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