CN108767507B

CN108767507B - Low-height anti-scraping spring sheet

Info

Publication number: CN108767507B
Application number: CN201810466301.1A
Authority: CN
Inventors: 董波
Original assignee: JUST CONNECTOR KUNSHAN CO Ltd
Current assignee: JUST CONNECTOR KUNSHAN CO Ltd
Priority date: 2018-05-16
Filing date: 2018-05-16
Publication date: 2020-05-19
Anticipated expiration: 2038-05-16
Also published as: CN108767507A

Abstract

A low-height anti-scraping elastic sheet comprises a plate-shaped base part, a tensioning part formed by reversely bending one end of the plate-shaped base part, an elastic arm formed by obliquely and upwardly extending from the tensioning part, a contact part formed at the top of the elastic arm and a supporting arm formed by reversely bending the tail end of the elastic arm and then extending towards the plate-shaped base part, wherein a prepressing hole is formed in one side of the supporting arm close to the plate-shaped base part, and the plate-shaped base part is torn and upwardly extended corresponding to the position of the prepressing hole to form a prepressing sheet prepressed in the prepressing hole; this application is low highly prevents scraping shell fragment size little.

Description

Low-height anti-scraping spring sheet

Technical Field

The present application relates to the field of electrical connectors, and more particularly to a low-height anti-scratching spring.

Background

The elastic sheet is widely applied to electronic equipment and is used for transmitting electric signals between an antenna or an electronic element and a main board. Various different elastic sheets are also promoted in various application occasions, such as common patch type elastic sheets, and are directly welded on the surface of the mainboard; the breaking plate is welded and inserted in a notch formed in the main plate; there is also a market demand for both the upper and lower surfaces to be contacted.

Generally, the design of the elastic sheet requires a scratch-resistant function to prevent the elastic contact portion from being damaged, and generally, the elastic sheet is bent and extended upwards at the transverse outer side of the plate-shaped base portion to form a wing and a prepressing portion to form prepressing with the supporting arm of the elastic arm, so that the size of the elastic sheet is limited by the wing and the prepressing structure, and the size of the elastic sheet cannot be further reduced.

Disclosure of Invention

In view of the above, it is desirable to provide a low-height anti-scratch spring sheet with a smaller size.

In order to solve the technical problem, the application provides a low height is prevented scraping shell fragment, include the slabby base, certainly the take-up portion that slabby base one end reverse bend formed, certainly the take-up portion upwards extends the elastic arm that forms to one side, form in the contact site at elastic arm top reaches certainly the terminal back orientation of bending of elastic arm the slabby base extends the support arm that forms, the support arm is close to slabby base one side has seted up the pre-compaction hole, slabby base corresponds the pre-compaction hole position is torn upwards to extend and is formed the pre-compaction in the downthehole preforming of pre-compaction.

The support arm is provided with the prepressing hole, and the plate-shaped base part is torn at the position corresponding to the prepressing hole to form the prepressing piece abutted to the prepressing hole, so that the prepressing of the elastic arm is realized. Compared with the prior art that the prepressing structure is arranged on the side wing of the plate-shaped base part, the product can be more miniaturized.

Preferably, the support arm includes a support beam portion and a support end portion bent from the support beam portion and abutting against the plate-shaped base portion, and the pre-pressing hole is located on one side of the support beam portion close to the support end portion or on the support beam portion and the support end portion.

Preferably, the pre-pressing piece passes through the pre-pressing hole and presses against the supporting end part.

Preferably, the prepressing piece is punched towards one side of the supporting end part to form a limiting bayonet, and the corner of the supporting end part abuts against the limiting bayonet.

Preferably, the elastic arm is provided with a position avoiding hole so that the elastic arm does not interfere with the pre-pressing piece when the elastic arm is pressed downwards.

Preferably, the elastic arm includes a first extension arm extending from the tensioning portion and a second extension arm extending from a terminal of the first extension arm in an inclined upward direction, and a joint of the first extension arm and the second extension arm is bent toward the plate-shaped base to form an auxiliary supporting point.

Preferably, the lateral width of the avoiding hole is greater than the lateral widths of the lower portion of the supporting beam portion and the supporting end portion of the supporting arm.

Preferably, the auxiliary supporting points are located on two lateral sides of the avoiding hole, and when the elastic arm presses down, the auxiliary supporting points can avoid the prepressing piece and the supporting end to contact the plate-shaped base to form an auxiliary support, so that better elastic performance is provided.

Preferably, the first extension arm is formed by extending horizontally or extending obliquely upwards.

Preferably, the position avoiding hole extends from the first extension arm to the second extension arm.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective view of a low-height anti-scratch spring plate according to the present application;

FIG. 2 is a perspective view of the low-height anti-scratch spring of the present application at another angle;

3 FIG. 33 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 31 3; 3

Fig. 4 is a partially enlarged view of the dotted circle shown in fig. 3.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 4, the low-height anti-scratch spring plate of the present application includes a plate-shaped base 10, a tensioning portion 20 formed by bending one end of the plate-shaped base 10 in an opposite direction, an elastic arm 30 formed by extending from the tensioning portion 20 in an oblique upward direction, a contact portion 50 formed at the top of the elastic arm 30, and a supporting arm 40 formed by bending the end of the elastic arm 30 in an opposite direction and extending toward the plate-shaped base 10.

The elastic arm 30 includes a first extension arm 31 extending from the tensioning portion 20 and a second extension arm 32 extending obliquely upward from the end of the first extension arm 31. The first extension arm 31 extends horizontally or obliquely upwards. The elastic arm 30 is provided with a position-avoiding hole 33, and the position-avoiding hole 33 extends from the first extension arm 31 to the second extension arm 32.

The support arm 40 includes a support beam portion 41 formed by extending after the end of the elastic arm 30 is bent reversely and a support end portion 42 formed by bending the end of the support beam portion 41, and a pre-pressing hole 43 is opened at a position of the support beam portion 41 close to the support end portion 42. The pre-pressure hole 43 may span the support beam portion 41 and the support end portion 42.

The two lateral sides of the plate-shaped base 10 away from one end of the tension part 20 are bent upwards to form an overpressure-proof ear 12 to prevent the elastic arm 30 from being damaged by being pressed down excessively. The plate-shaped base 10 is torn at a position corresponding to the pre-pressing hole 43 and extends upwards to form a pre-pressing piece 11, the pre-pressing piece 11 passes through the pre-pressing hole 43 and is pressed against the supporting end part 42, and the pre-pressing piece 11 is punched towards one side of the supporting end part 42 to form a limiting bayonet 13 so that the corner of the supporting end part 42 is clamped in the limiting bayonet 13, so that the pre-pressing effect is better and more accurate.

The supporting arm 40 is slightly bent towards the direction of the plate-shaped base 10 at the joint of the first extending arm 31 and the second extending arm 32 to form an auxiliary supporting point 34; the transverse width of the avoiding hole 33 is larger than the transverse widths of the lower part of the supporting beam part 41 and the supporting end part 42 of the supporting arm 40; the auxiliary supporting points 34 are positioned at two transverse sides of the avoiding hole 33; when the elastic arm 30 is pressed down, the auxiliary supporting point 34 can avoid the pre-pressing piece 11 and the supporting end 42 to contact the plate-shaped base 10 to form an auxiliary support to provide better elastic performance.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A low-height anti-scraping elastic sheet comprises a plate-shaped base part, a tensioning part formed by reversely bending one end of the plate-shaped base part, an elastic arm formed by obliquely and upwardly extending from the tensioning part, a contact part formed at the top of the elastic arm and a supporting arm formed by reversely bending the tail end of the elastic arm and then extending towards the plate-shaped base part, and is characterized in that a pre-pressing hole is formed in one side of the supporting arm close to the plate-shaped base part, and the plate-shaped base part is torn and upwardly extended corresponding to the position of the pre-pressing hole to form a pre-pressing sheet pre-pressed in the pre-pressing; the support arm comprises a support beam part and a support end part bent from the support beam part and pressed against the plate-shaped base part, and the pre-pressing hole is positioned on one side of the support beam part close to the support end part or positioned on the support beam part and the support end part; the elastic arm is provided with a position avoiding hole so that the elastic arm cannot interfere with the preforming piece when the elastic arm is pressed downwards; the elastic arm comprises a first extension arm extending from the tensioning part and a second extension arm formed by extending the tail end of the first extension arm upwards in an inclined mode, and the joint of the first extension arm and the second extension arm is bent towards the direction of the plate-shaped base to form an auxiliary supporting point; the transverse width of the avoiding hole is greater than the transverse widths of the lower part of the supporting beam part and the supporting end part of the supporting arm; the auxiliary supporting points are positioned on the two transverse sides of the avoiding hole, when the elastic arm is pressed downwards, the auxiliary supporting points can avoid the prepressing piece and the supporting end part to contact the plate-shaped base part to form an auxiliary support so as to provide better elastic performance, and the two transverse sides of one end, far away from the tensioning part, of the plate-shaped base part are bent upwards and extend to form anti-overpressure lug parts so as to prevent the elastic arm from being excessively pressed downwards to be damaged; the prepressing piece is punched towards one side of the supporting end part to form a limiting bayonet, and the corner of the supporting end part is abutted to the limiting bayonet.

2. The low-height shrapnel for scratch resistance as recited in claim 1, wherein said pre-pressing piece passes through said pre-pressing hole and presses against said supporting end portion.

3. The low-height ballistic blade of claim 1 wherein the first extension arm is formed to extend horizontally or obliquely upwardly.

4. The low-height anti-scratch spring sheet according to claim 1, wherein the avoiding hole extends from the first extension arm to the second extension arm.