CN202817282U - A contact resilience piece - Google Patents
A contact resilience piece Download PDFInfo
- Publication number
- CN202817282U CN202817282U CN 201220366951 CN201220366951U CN202817282U CN 202817282 U CN202817282 U CN 202817282U CN 201220366951 CN201220366951 CN 201220366951 CN 201220366951 U CN201220366951 U CN 201220366951U CN 202817282 U CN202817282 U CN 202817282U
- Authority
- CN
- China
- Prior art keywords
- contact
- fixed part
- elastic arm
- contact site
- arm section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a contact resilience piece which is mainly used for connecting two electrical components and comprises a fixed part, a contact part and a resilient arm part. The contact part is disposed above the fixed part; the resilient arm part is connected between the fixed part and the contact part; the contact part comprises a first side wall, a second side wall and a bearing wall disposed between the first and second side walls; the resilient arm part extends forward from the tail end of the fixed part and then extends to the second side wall of the contact part after being bent afterward; the contact part is in the shape of an inverted V arching upward; the joint between the second side wall of the contact part and the elastic arm part is provided with a through hole; the fixed part is provided with a support corresponding to the through hole, the support being bent upward; the tail end of the support passes through the through hole and is bent downward for forming a hooking block; and the hooking block is disposed at the upper end of the elastic arm part. The contact resilience piece is characterized in that, with less material, the permanent deformation of a circular arc block of the elastic arm part because of excessive stretching can be prevented.
Description
Technical field
The utility model relates to a kind of contact flat spring, particularly a kind of contact flat spring for some connection between two electric components.
Background technology
Contact flat spring is for providing the path of a conducting telecommunication between connector and the assembly.In mobile communication equipment, for ease of assembly, dismounting, maintenance and replacing, the electric elements such as some antennas, grounding shell are connected with circuit board by contact flat spring usually.One end of contact flat spring is fixed on the circuit board, and the other end is Mechanical Contact electric elements flexibly then, connects with the point of finishing between the two.
A kind of contact flat spring as shown in Figure 1 is by having flexible sheet metal one bending forming.It comprises fixed part A, contact site C and the B of elastic arm section.Contact site C is arch, and its sidewall C1 and C2 are perpendicular with the B of elastic arm section; The end of sidewall C1 is extended with projection C3 to both sides.
Extended upward to the bilateral symmetry of fixed part A sidewall A1, the corresponding projection C3 of sidewall A1 place is provided with groove A2.Projection C3 is arranged in groove A2, ejects to prevent contact site B.When the height of contact flat spring was low, the height between the B of elastic arm section and the fixed part A also can step-down, thereby the B of elastic arm section can not produce enough elastic force, causes the contact inefficacy.And the both sides of stiff end A must have projection C3 and groove A2 to push down the B of elastic arm section, so the utilance of material sheet metal is low.
The utility model content
For solving the problems of the technologies described above, the utility model purpose is to provide the contact flat spring that a kind of elastic force is large, materials are economized.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of contact flat spring comprises fixed part, contact site and elastic arm section, and described contact site is in the top of described fixed part, and described elastic arm section is connected between described fixed part and the described contact site; Described contact site comprises the first side wall, the second sidewall and is positioned between the two bearing wall; The second sidewall that the tip forward of self-retaining section of described elastic arm section is extended and bending extends to described contact site backward, described contact site is upwards arch upward reverse V-shaped; The intersection of the second sidewall of described contact site and described elastic arm section is provided with through hole; Corresponding described through hole is provided with the upwards pillar of bending on the described fixed part; The end of described pillar passes described through hole, and piece is colluded in downward bending formation; Describedly collude the upper end that piece is positioned at described elastic arm section.
Preferably, the described piece that colludes is bent inwards by the end of described pillar and forms.Preferably, formed angle is 80 degree between described pillar and the described fixed part.
Preferably, described elastic arm section comprises and circular arc piece and back-up block that described circular arc piece links to each other with described fixed part, and described back-up block is connected between described circular arc piece and described the second sidewall.
Preferably, described back-up block is parallel with described fixed part.
Preferably, formed angle is 135 degree between described the second sidewall and the described back-up block.
By technique scheme, the contact flat spring that the utility model provides, by a block keep off hold and retrain contact site upwards, downward range of movement, just can prevent that with less material elastic arm section piece from because excessively being stretched the problem of permanent deformation occuring.Contact site is arranged to the reverse V-shaped extraneous applied pressure that cushions, makes elastic arm section can bear larger pressure, and produce enough elastic force, guarantee that contact is reliable.And under identical pressure, the height between back-up block and the fixed part can reduce, and has realized the low clearance design of contact flat spring integral body, has satisfied the day by day demand of miniaturization of product.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, during the below will describe embodiment or the accompanying drawing of required use in the prior art do to introduce simply.
The schematic diagram of the contact flat spring that Fig. 1 provides for prior art;
Fig. 2 is the structural representation of the disclosed a kind of contact flat spring of the utility model embodiment;
Fig. 3 is the end view of the disclosed a kind of contact flat spring of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.
The utility model provides a kind of contact flat spring (referring to Fig. 2), comprising:
Fixed part K, contact site S and the H of elastic arm section.
Contact site S is positioned at the top of fixed part K, and the H of elastic arm section is connected between fixed part K and the contact site S.
The H of elastic arm section comprises and circular arc piece H1 and back-up block H2 that circular arc piece H1 links to each other with fixed part K, and back-up block H2 is connected between circular arc piece H1 and the contact site S, and back-up block H2 is parallel with fixed part K.
Referring to Fig. 3, contact site S comprises the first side wall S4, the second sidewall S3 and is positioned between the two bearing wall S2.The second sidewall S3 that the tip forward of the H of the elastic arm section self-retaining K of section is extended and bending extends to contact site S backward.
Contact site S is upwards arch upward reverse V-shaped, and formed angle is 135 degree between the second sidewall S3 and the back-up block H2.The the second sidewall S3 that tilts can cushion extraneous applied pressure, makes the circular arc piece H1 of the H of elastic arm section can bear larger pressure.And under identical pressure, the height between back-up block H2 and the fixed part K can reduce, and has realized the low clearance design of contact flat spring integral body, has satisfied the day by day demand of miniaturization of product.
The intersection of the second sidewall S3 of contact site S and the support portion H2 of the H of elastic arm section is provided with through hole S1, and the corresponding described through hole S1 of fixed part K place is provided with the upwards pillar K1 of bending.The end of pillar K1 passes through hole S1, and piece K2 is colluded in downward bending formation.
Collude piece K2 and be positioned at the upper end of support portion H2, collude piece K2 and be pressed on the back-up block H2, keep off hold and retrain contact site S upwards, downward range of movement.
Formed angle is 80 degree between pillar K1 and the fixed part K.When the power that applies when the external world was excessive, pillar K1 can cushion extraneous strength, and produces enough elastic force, guaranteed that contact is reliable.And also frangibility not of pillar K1, longer service life.
The contact flat spring that the utility model provides just can prevent that with less material the circular arc piece of elastic arm section from because excessively being stretched the problem of permanent deformation occuring.Reverse V-shaped contact site cushions extraneous applied pressure, makes elastic arm section can bear larger pressure.Therefore, the utility model provides the contact flat spring that a kind of elastic force is large, materials are economized.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a contact flat spring comprises fixed part, contact site and elastic arm section, and described contact site is in the top of described fixed part, and described elastic arm section is connected between described fixed part and the described contact site; Described contact site comprises the first side wall, the second sidewall and is positioned between the two bearing wall; The second sidewall that the tip forward of self-retaining section of described elastic arm section is extended and bending extends to described contact site backward is characterized in that described contact site is upwards arch upward reverse V-shaped; The intersection of the second sidewall of described contact site and described elastic arm section is provided with through hole; Corresponding described through hole is provided with the upwards pillar of bending on the described fixed part; The end of described pillar passes described through hole, and piece is colluded in downward bending formation; Describedly collude the upper end that piece is positioned at described elastic arm section.
2. a kind of contact flat spring according to claim 2 is characterized in that, formed angle is 80 degree between described pillar and the described fixed part.
3. a kind of contact flat spring according to claim 1 and 2, it is characterized in that, described elastic arm section comprises and circular arc piece and back-up block that described circular arc piece links to each other with described fixed part, and described back-up block is connected between the second sidewall of described circular arc piece and described contact site.
4. a kind of contact flat spring according to claim 3 is characterized in that, described back-up block is parallel with described fixed part.
5. a kind of contact flat spring according to claim 4 is characterized in that, formed angle is 135 degree between described the second sidewall and the described back-up block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366951 CN202817282U (en) | 2012-07-27 | 2012-07-27 | A contact resilience piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366951 CN202817282U (en) | 2012-07-27 | 2012-07-27 | A contact resilience piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817282U true CN202817282U (en) | 2013-03-20 |
Family
ID=47876103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220366951 Expired - Fee Related CN202817282U (en) | 2012-07-27 | 2012-07-27 | A contact resilience piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202817282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275819A (en) * | 2017-05-27 | 2017-10-20 | 努比亚技术有限公司 | The attachment structure and mobile terminal of antenna shrapnel, antenna module and circuit board |
| CN108695114A (en) * | 2017-03-29 | 2018-10-23 | 德昌电机(深圳)有限公司 | Relay and its contact system |
-
2012
- 2012-07-27 CN CN 201220366951 patent/CN202817282U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695114A (en) * | 2017-03-29 | 2018-10-23 | 德昌电机(深圳)有限公司 | Relay and its contact system |
| CN107275819A (en) * | 2017-05-27 | 2017-10-20 | 努比亚技术有限公司 | The attachment structure and mobile terminal of antenna shrapnel, antenna module and circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20140727 |
|
| EXPY | Termination of patent right or utility model |