CN209804940U - Elastic sheet connector structure - Google Patents
Elastic sheet connector structure Download PDFInfo
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- CN209804940U CN209804940U CN201920452582.5U CN201920452582U CN209804940U CN 209804940 U CN209804940 U CN 209804940U CN 201920452582 U CN201920452582 U CN 201920452582U CN 209804940 U CN209804940 U CN 209804940U
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- substrate
- arm
- bent
- elastic
- connector structure
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Abstract
The utility model discloses a spring plate connector structure, which comprises a base plate, a first bending part, a second bending part, a first elastic arm, a third bending part and an elastic contact arm which are connected in sequence, wherein one end of the base plate is bent downwards to form the first bending part, and the other end of the first bending part, which is far away from the base plate, is bent upwards to form the second bending part; at least one side of two opposite sides of the substrate is bent downwards to form an overhead part, one end of the overhead part, which is far away from the substrate, extends towards the lower part of the substrate to form a welding part parallel to the substrate, the second bending part is positioned above the welding part, and the elastic contact arm is positioned above the substrate. The first bending part and the second bending part form a V-shaped elastic arm, the stress concentration condition of the U-shaped force arm is relieved by the V-shaped elastic arm, the probability of permanent deformation caused by the falling of the U-shaped force arm is reduced, the service life of the elastic sheet connector is prolonged, and the stability of the elastic sheet structure is improved.
Description
Technical Field
The utility model relates to a connector technical field especially relates to a shell fragment connector structure.
Background
As shown in fig. 1, the conventional spring plate structure used as a connector includes a welding portion 8 and a U-shaped force arm 200 connected to the welding portion 8, wherein a straight line segment 201 of the U-shaped force arm 200 is connected to one end of the welding portion 8, and the straight line segment 201 is flush with the welding portion 8.
The miniaturized development trend of electronic equipment forces the shell fragment structure to miniaturize more and more, and a measure of shell fragment structure miniaturization just shortens the length of the straightway of the U type arm of force, but can cause the problem of U type arm of force bending department stress concentration after the length of the straightway of the U type arm of force shortens, and when shell fragment structure work pushed down promptly, the U type arm of force produced the settlement easily because of stress concentration, caused permanent deformation, in other words, miniaturized shell fragment structure has the unstable condition of structure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provides a spring plate structure with stable structure.
In order to solve the technical problem, the utility model discloses a technical scheme be: a spring plate connector structure comprises a substrate, a first bent part, a second bent part, a first elastic arm, a third bent part and an elastic contact arm which are sequentially connected, wherein one end of the substrate is bent downwards to form the first bent part, and one end of the first bent part, which is far away from the substrate, is bent upwards to form the second bent part; at least one side of two opposite sides of the substrate is bent downwards to form an empty part, one end of the empty part, far away from the substrate, extends towards the lower part of the substrate to form a welding part parallel to the substrate, the second bending part is positioned above the welding part, and the elastic contact arm is positioned above the substrate.
Furthermore, the two opposite sides of the substrate are respectively provided with the overhead part.
Further, at least a part of the second bending part is located between the two overhead parts.
Furthermore, the elastic contact arm comprises a suction part, a fourth bent part, a second elastic arm and a contact part which are sequentially connected, one end of the suction part is connected with the third bent part, the other end of the suction part is bent upwards to form the fourth bent part, and the suction part is parallel to the substrate.
Furthermore, the device also comprises a supporting part, one end of the supporting part is connected with the contact part, and the other end of the supporting part extends towards the direction close to the substrate in an inclined mode.
Furthermore, the protective frame body is further included, at least one part of the first elastic arm and at least one part of the supporting part are both positioned in the protective frame body, and the other end of the substrate is connected with the protective frame body.
Furthermore, the opposite sides of one end of the supporting part, which is far away from the contact part, are respectively provided with a limiting block extending outwards, and a part of the limiting block is positioned under the protective frame body.
Furthermore, the protective frame body comprises a main protective arm and two opposite L-shaped protective arms, one end, far away from the first bending part, of the substrate bends upwards to extend to form the main protective arm, one side of the main protective arm is connected with one L-shaped protective arm, and the other side of the main protective arm is connected with the other L-shaped protective arm.
Furthermore, one part of the L-shaped protection arm is positioned right above the limiting block.
Furthermore, one end of the supporting part, which is far away from the contact part, is provided with an anti-scratch transition section, and the limiting block is arranged on the anti-scratch transition section.
The beneficial effects of the utility model reside in that: the first bending part and the second bending part form a V-shaped elastic arm, the V-shaped elastic arm relieves the stress concentration condition of the U-shaped force arm, reduces the probability of permanent deformation of the U-shaped force arm due to falling, is favorable for prolonging the service life of the elastic sheet connector and improving the stability of the elastic sheet structure, and particularly when the length of the elastic sheet is shorter, the V-shaped elastic arm has more remarkable stress sharing effect and is favorable for promoting the elastic sheet connector to develop to a short form; the welding part is formed below the substrate, so that the elastic sheet connector is still in an on-board structure, hole breaking processing is not needed to be carried out on the PCB, and convenience is brought to manufacturers.
Drawings
Fig. 1 is a schematic structural diagram of a prior art spring connector;
fig. 2 and fig. 3 are schematic structural views of a shell fragment connector according to a first embodiment of the present invention;
Fig. 4 is a side view of a dome connector according to a first embodiment of the present invention;
Fig. 5 is a sectional view taken along line a-a of fig. 4.
Description of reference numerals:
1. a substrate; 2. a first bent portion; 3. a second bent portion; 4. a first resilient arm; 5. a third bent portion; 6. a resilient contact arm; 61. a suction part; 62. a fourth bent portion; 63. a second resilient arm; 64. a contact portion; 7. an overhead portion; 8. welding the part; 9. a support portion; 10. a protective frame body; 101. a main guard arm;
102. An L-shaped arm protector; 11. a limiting block; 12. preventing the transition section from being scratched; 200. a U-shaped force arm;
201. A straight line segment.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model discloses the most crucial design lies in: one end of the substrate is provided with a V-shaped elastic arm capable of sharing stress for the third bending part, and the V-shaped elastic arm is composed of a first bending part and a second bending part which are connected.
Referring to fig. 2 to 5, a connector structure of a spring plate includes a substrate 1, a first bending portion 2, a second bending portion 3, a first elastic arm 4, a third bending portion 5 and an elastic contact arm 6, which are connected in sequence, wherein one end of the substrate 1 is bent downward to form the first bending portion 2, and one end of the first bending portion 2, which is far away from the substrate 1, is bent upward to form the second bending portion 3; at least one of two opposite sides of the substrate 1 is bent downwards to form an empty part 7, one end of the empty part 7, which is far away from the substrate 1, extends towards the lower part of the substrate 1 to form a welding part 8 parallel to the substrate 1, the second bending part 3 is positioned above the welding part 8, and the elastic contact arm 6 is positioned above the substrate 1.
The utility model discloses a structural principle brief follows as follows: the first bending part and the second bending part form a V-shaped elastic arm, and when the elastic sheet connector works and is pressed, the V-shaped elastic arm can share part of stress for the third bending part 5, so that the situation that the stress of the elastic sheet connector is too concentrated is avoided.
From the above description, the beneficial effects of the present invention are: the first bending part and the second bending part form a V-shaped elastic arm, the V-shaped elastic arm relieves the stress concentration condition of the U-shaped force arm, reduces the probability of permanent deformation of the U-shaped force arm due to falling, is favorable for prolonging the service life of the elastic sheet connector and improving the stability of the elastic sheet structure, and particularly when the length of the elastic sheet is shorter, the V-shaped elastic arm has more remarkable stress sharing effect and is favorable for promoting the elastic sheet connector to develop to a short form; the welding part is formed below the substrate, so that the elastic sheet connector is still in an on-board structure, hole breaking processing is not needed to be carried out on the PCB, and convenience is brought to manufacturers.
Further, the two opposite sides of the substrate 1 are respectively provided with the empty space portion 7.
From the above description, the structure of the spring plate connector is symmetrical, which is beneficial to further improving the stability of the structure of the spring plate connector.
Further, at least a part of the second bending portion 3 is located between the two hollow portions 7.
it can be known from the above description that the two hollow portions can protect the V-shaped elastic arm formed by the first and second bending portions, which is beneficial to further improving the structural stability of the elastic sheet connector.
Further, the elastic contact arm 6 includes a suction portion 61, a fourth bent portion 62, a second elastic arm 63 and a contact portion 64, which are connected in sequence, one end of the suction portion 61 is connected to the third bent portion 5, the other end of the suction portion 61 is bent upward to form the fourth bent portion 62, and the suction portion 61 is disposed parallel to the substrate 1.
As can be seen from the above description, the spring plate connector can be assembled by adopting an SMT process, which is beneficial to reducing the assembly cost of manufacturers.
Further, the display device further comprises a support portion 9, one end of the support portion 9 is connected to the contact portion 64, and the other end of the support portion 9 extends obliquely toward the substrate 1.
Furthermore, the device also comprises a protective frame 10, at least a part of the first elastic arm 4 and at least a part of the supporting part 9 are both positioned in the protective frame 10, and the other end of the substrate 1 is connected with the protective frame 10.
It can be known from the above description that the main functional components of the elastic sheet connector can be prevented from being impacted from the periphery by the arrangement of the protection frame body, and the stability of the structure of the elastic sheet connector is further improved.
Furthermore, two opposite sides of one end of the support portion 9 away from the contact portion 64 are respectively provided with a stop block 11 extending outwards, and a part of the stop block 11 is located right below the protective frame 10.
According to the above description, the protection frame body can limit the maximum ascending stroke of the limiting block, and the limiting block and the protection frame body are matched to form the anti-hooking structure of the elastic sheet connector, so that the structure of the elastic sheet connector is more stable.
further, the protective frame 10 includes a main guard arm 101 and two L-shaped guard arms 102 disposed oppositely, one end of the substrate 1 away from the first bending portion 2 is bent upwards and extended to form the main guard arm 101, one side of the main guard arm 101 is connected to one of the L-shaped guard arms 102, and the other side of the main guard arm 101 is connected to the other L-shaped guard arm 102.
As can be seen from the above description, the protection frame is substantially rectangular, and the protection frame is symmetrical in structure, so that the stability of the structure of the spring connector is further improved.
Further, a part of the L-shaped guard arm 102 is located right above the limiting block 11.
According to the above description, the L-shaped guard arm can limit the maximum ascending stroke of the limiting block, and the limiting block and the L-shaped guard arm are matched to form the hook-up prevention structure of the elastic sheet connector.
Furthermore, one end of the support portion 9, which is far away from the contact portion 64, is provided with an anti-scratch transition section 12, and the limit block 11 is arranged on the anti-scratch transition section 12.
According to the description, the anti-scratch transition section can prevent one end, far away from the contact part, of the supporting part from scratching the substrate in the pressing process, and the service life of the elastic sheet connector is prolonged.
Example one
Referring to fig. 2 to 5, a first embodiment of the present invention is: a shell fragment connector structure, through cutting out, bend the shaping, it includes consecutive plaque 1, the first kink 2, the second kink 3, the first elastic arm 4, the third kink 5 and elastic contact arm 6, one end of the said plaque 1 is bent down and formed the said first kink 2, one end far away from said plaque 1 of the said first kink 2 is bent up and formed the said second kink 3; at least one of two opposite sides of the substrate 1 is bent downwards to form an empty part 7, one end of the empty part 7, which is far away from the substrate 1, extends towards the lower part of the substrate 1 to form a welding part 8 parallel to the substrate 1, the second bending part 3 is positioned above the welding part 8, and the elastic contact arm 6 is positioned above the substrate 1.
Specifically, the second bent portion 3 is located below the welding portion 8. When the elastic sheet connector works and is pressed to a certain degree, the second bending part 3 props against the welding part 8.
Preferably, the two opposite sides of the substrate 1 are respectively provided with the hollow portions 7, and at least a part of the second bending portion 3 is located between the two hollow portions 7. Thus, the two hollow portions 7 can protect the second bent portion 3.
In this embodiment, the elastic contact arm 6 includes a suction portion 61, a fourth bent portion 62, a second elastic arm 63 and a contact portion 64, which are connected in sequence, one end of the suction portion 61 is connected to the third bent portion 5, the other end of the suction portion 61 is bent upward to form the fourth bent portion 62, and the suction portion 61 is disposed parallel to the substrate 1. Of course, in other embodiments, the elastic contact arm 6 may not have the suction portion 61 and the fourth bending portion 62.
And the device also comprises a supporting part 9, wherein one end of the supporting part 9 is connected with the contact part 64, and the other end of the supporting part 9 obliquely extends towards the direction close to the substrate 1.
The circuit board further comprises a protective frame 10, at least one part of the first elastic arm 4 and at least one part of the supporting part 9 are both located in the protective frame 10, and the other end of the substrate 1 is connected with the protective frame 10.
Two opposite sides of one end of the support portion 9, which is far away from the contact portion 64, are respectively provided with a limiting block 11 extending outwards, and a part of the limiting block 11 is located right below the protective frame 10, that is, the limiting block 11 is located between the bottom surface of the protective frame 10 and the top surface of the substrate 1 in the height direction.
In this embodiment, the protective frame 10 is a rectangular frame, the protective frame 10 includes a main guard arm 101 and two L-shaped guard arms 102 disposed opposite to each other, one end of the substrate 1 away from the first bent portion 2 is bent upward and extends to form the main guard arm 101, one side of the main guard arm 101 is connected to one of the L-shaped guard arms 102, and the other side of the main guard arm 101 is connected to the other L-shaped guard arm 102. Correspondingly, a part of the L-shaped protection arm 102 is located right above the limiting block 11. Optionally, the top surface of the suction portion 61 is slightly lower than the top surface of the protection frame body 10, so that the protection frame body 10 also serves as a limit stop for the working height of the spring connector.
One end of the supporting portion 9, which is far away from the contact portion 64, is provided with an anti-scratch transition section 12, the limiting block 11 is arranged on the anti-scratch transition section 12, and when the elastic sheet connector is pressed to a certain degree in work, the anti-scratch transition section 12 abuts against the substrate 1 and slides on the substrate 1. Optionally, the scratch-proof transition section 12 is a circular arc section.
To sum up, in the structure of the elastic sheet connector provided by the present invention, the first and second bending portions form a V-shaped elastic arm, which relieves the stress concentration of the U-shaped force arm, reduces the probability of permanent deformation of the U-shaped force arm due to yielding, is beneficial to prolonging the service life of the elastic sheet connector, and improves the stability of the elastic sheet structure, especially when the length of the elastic sheet is short, the effect of the V-shaped elastic arm for sharing stress is more significant, and is beneficial to promoting the shape development of the elastic sheet connector towards shortening; a welding part is formed below the substrate, so that the elastic sheet connector is still in an on-board structure, and the PCB does not need to be subjected to hole breaking treatment, and is convenient for manufacturers to use; the service life is long.
the above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. A shell fragment connector structure which characterized in that: the elastic contact arm comprises a substrate, a first bent part, a second bent part, a first elastic arm, a third bent part and an elastic contact arm which are sequentially connected, wherein one end of the substrate is bent downwards to form the first bent part, and one end of the first bent part, which is far away from the substrate, is bent upwards to form the second bent part; at least one side of two opposite sides of the substrate is bent downwards to form an empty part, one end of the empty part, far away from the substrate, extends towards the lower part of the substrate to form a welding part parallel to the substrate, the second bending part is positioned above the welding part, and the elastic contact arm is positioned above the substrate.
2. A leaf spring connector structure according to claim 1, characterized in that: the two opposite sides of the substrate are respectively provided with the overhead part.
3. A leaf spring connector structure according to claim 2, characterized in that: at least a portion of the second bend portion is located between the two overhead portions.
4. A leaf spring connector structure according to claim 1, characterized in that: the elastic contact arm comprises a suction part, a fourth bent part, a second elastic arm and a contact part which are sequentially connected, one end of the suction part is connected with the third bent part, the other end of the suction part is bent upwards to form the fourth bent part, and the suction part is parallel to the substrate.
5. A leaf spring connector structure according to claim 4, characterized in that: the substrate is characterized by further comprising a supporting part, one end of the supporting part is connected with the contact part, and the other end of the supporting part extends towards the direction close to the substrate in an inclined mode.
6. A leaf spring connector structure according to claim 5, characterized in that: still include the protection framework, at least partly of first elastic arm and at least partly of supporting part all are located in the protection framework, the other end of base plate is connected the protection framework.
7. a dome connector structure, according to claim 6, characterized in that: the opposite sides of one end of the supporting part, which is far away from the contact part, are respectively provided with limiting blocks extending outwards, and part of the limiting blocks are positioned under the protective frame body.
8. The spring connector structure of claim 7, wherein: the protective frame body comprises a main protective arm and two opposite L-shaped protective arms, one end, far away from the first bending portion, of the substrate is bent upwards and extends to form the main protective arm, one side of the main protective arm is connected with one L-shaped protective arm, and the other side of the main protective arm is connected with the other L-shaped protective arm.
9. The spring connector structure of claim 8, wherein: and one part of the L-shaped protection arm is positioned right above the limiting block.
10. The spring connector structure of claim 7, wherein: one end of the supporting part, which is far away from the contact part, is provided with an anti-scratch transition section, and the limiting block is arranged on the anti-scratch transition section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920452582.5U CN209804940U (en) | 2019-04-01 | 2019-04-01 | Elastic sheet connector structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920452582.5U CN209804940U (en) | 2019-04-01 | 2019-04-01 | Elastic sheet connector structure |
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| Publication Number | Publication Date |
|---|---|
| CN209804940U true CN209804940U (en) | 2019-12-17 |
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|---|---|---|---|
| CN201920452582.5U Active CN209804940U (en) | 2019-04-01 | 2019-04-01 | Elastic sheet connector structure |
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| CN (1) | CN209804940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950714A (en) * | 2019-04-01 | 2019-06-28 | 深圳市信维通信股份有限公司 | A kind of elastic sheet connector structure |
-
2019
- 2019-04-01 CN CN201920452582.5U patent/CN209804940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950714A (en) * | 2019-04-01 | 2019-06-28 | 深圳市信维通信股份有限公司 | A kind of elastic sheet connector structure |
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