CN2796191Y - Conductive spring sheet - Google Patents
Conductive spring sheet Download PDFInfo
- Publication number
- CN2796191Y CN2796191Y CN 200520018087 CN200520018087U CN2796191Y CN 2796191 Y CN2796191 Y CN 2796191Y CN 200520018087 CN200520018087 CN 200520018087 CN 200520018087 U CN200520018087 U CN 200520018087U CN 2796191 Y CN2796191 Y CN 2796191Y
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- CN
- China
- Prior art keywords
- fixed part
- elastic sheet
- electroconductive elastic
- circuit board
- fixing part
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- Expired - Fee Related
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Abstract
The utility model discloses a conductive spring sheet, which comprises a fixing part, two spring parts and two contact parts, wherein two side edges of the fixing part are extended from outside to inside and are upwards bent so as to form the spring parts; the upper ends of the spring parts are horizontally extended so as to form the contact parts used for providing the conductive spring sheet having small volume and low height. The utility model is provided with at least one auxiliary welding part on the fixing part to increase the welding area between welding flux and the fixing part to achieve the goals that the conductive spring sheet has little possibility of disengaging and generates good electrical connection; in addition, the connecting point matched with the fixing part and the spring parts is upwards convexly provided with at least one convex part; in the way, when welded, the welding flux flows into a gap between the convex part and the circuit board and can not overflow below a bending angle between the fixing part and the spring parts; the spring parts can not lose elastic property because of being fixed by the welding flux, and has the advantage of long service life.
Description
Technical field
The utility model relates to a kind of shell fragment, and particularly a kind of making constitutes the electroconductive elastic sheet that electrically connects between electronic component and the circuit board.
Background technology
Generally on circuit board, be provided with a conducting element with transmission media as electric power, for instance, all contact with battery in the battery tray of products such as mobile phone in the past and notebook computer and form power circuit with a shell fragment, and this shell fragment is to be bent into the metal material punching press, again with surface mount technology (Surface Mount Technology, be called for short: mode SMT) is welded on the circuit board, utilize the material behavior and the shape thereof of shell fragment itself to produce certain elastic force, other electron component and circuit board are produced to be electrically connected, and it is available to prevent electromagnetic radiation and wave interference (EMI), the cushioning effect in the time of also can providing electronic component to contact with circuit board.
The structure of existing shell fragment sees also Fig. 1, and the profile of shell fragment is the S configuration, and it includes a fixed part 100, an elastic pressing part 110 and a contact site 120; Wherein fixed part 100 is flat plates, elastic pressing part 110 is that the end by fixed part 100 is bent upwards and becomes S shape to extend, thereby have a kink 130 between fixed part 100 and the elastic pressing part 110, and elastic pressing part 110 forms a contact site 120 from its upper end horizontal-extending again; In addition, the other end of fixed part 100 then is diagonally extending in the other direction with elastic pressing part 110, and and elastic pressing part 110 between form one first gap 140, and the other end of contact site 120 also is diagonally extending in the other direction with elastic pressing part 110, and and elastic pressing part 110 between form one second gap 150; By fixed part 100 shell fragment is fixedly welded on the circuit board (not shown), and contacts with the other electron component (not shown), and make both produce electric connection with contact site 120.
Yet, shell fragment generally is to utilize welding manner to be installed in circuit board, but with soldering appliance hot melt scolder to circuit board when connecting shell fragment, because fixed part 100 is tabulars, not only Han Jie situation is bad and come off easily, scolder meeting overflow is to kink 130 belows between fixed part 100 and the elastic pressing part 110 in addition, elastic pressing part 110 therefore can be by partial fixing, make the flexibility decrease of shell fragment, and increase along with the shell fragment access times, therefore kink 130 is constantly driven, and causes the fixed part 100 and the scolder of kink 130 belows to come off gradually, and then makes shell fragment breaking circuit plate.
In addition, because above-mentioned shell fragment has first gap 140 and second gap 150, therefore when shell fragment is subjected to pushing, with the distortion that produces the deflection displacement that contacts that makes contact site 120 with other electron component, thereby significantly reduce the conductivity of shell fragment and prevent the ability of electromagnetic radiation: and this shell fragment is because its external form is the S configuration, therefore highly higher, can't meet the demand of most of electronic installation low clearances, thereby limit the range of application of shell fragment.
In order to solve the height problem of above-mentioned shell fragment, disclosed a kind of low configuration shell fragment for No. 580234 at the Taiwan patent announcement, and its elastic arm extends from the lateral margin of fixed part, and press from both sides an obtuse angle with fixed part, make the distance of circuit board and electronic component more close by this, and can reduce the height of electronic installation.
Yet, though above-mentioned shell fragment meets the requirement of low clearance, because elastic arm extends outward and presss from both sides an obtuse angle with fixed part from the lateral margin of fixed part, not only the volume of shell fragment is bigger, and desire also needs relative increase with the volume that circuit board constitutes the electronic component that electrically connects, and could contact with shell fragment like this; In addition, still there be the problem of above-mentioned scolder meeting overflow to the below of the bent angle between fixed part and the elastic arm in this shell fragment.
The utility model content
The utility model provides a kind of electroconductive elastic sheet, and its function is the little and low clearance of volume, and is difficult for the breaking circuit plate and can keeps the excellent electrical property annexation.
For achieving the above object, the preferable embodiment of this electroconductive elastic sheet comprises a fixed part, two elastic pressing parts and two contact sites; Wherein fixed part is that electroconductive elastic sheet engages part with circuit board, elastic pressing part then from the both side edges of fixed part by outside toward interior extension and be bent upwards, in addition, elastic pressing part forms a contact site from its upper end horizontal-extending, contact part for other electron component with electroconductive elastic sheet, the electroconductive elastic sheet of the little and low clearance of a volume can be provided by this.
The utility model is also by being provided with at least one weldering portion that helps, scolder is extended to the weldering portion that helps on fixed part, and then increases the bonding area of scolder and fixed part, thereby improves the weld cases of electroconductive elastic sheet and circuit board.
Another preferred embodiment of the present utility model is that being connected part with elastic pressing part at fixed part up is convexly equipped with at least one protuberance, then in welding fixedly during electroconductive elastic sheet, scolder can flow in the space between protuberance and the circuit board, and can overflow to the below of the bent angle between fixed part and elastic pressing part, elastic pressing part then can be because of fixedly not followed the string by scolder, and have the advantage of long service life, also can reach electroconductive elastic sheet and be difficult for breaking away from and providing the excellent electrical property annexation.
To sum up, according to the little and low clearance of conduction monolithic volume of the present utility model, and be difficult for the breaking circuit plate and can keep the excellent electrical property annexation.
Description of drawings
Fig. 1 shows the structure of existing shell fragment.
Fig. 2 shows the embodiment structure of electroconductive elastic sheet.
Fig. 3 shows the vertical view of the embodiment of electroconductive elastic sheet.
Fig. 4 shows the end view of the embodiment of electroconductive elastic sheet.
Schematic diagram when the embodiment that Fig. 5 shows electroconductive elastic sheet moves.
Embodiment
At first see also Fig. 2, wherein show the electroconductive elastic sheet according to the utility model preferred embodiment, it comprises a fixed part 10, two elastic pressing part 20a, 20b and two contact site 30a, 30b.
The electroconductive elastic sheet of this preferred embodiment is an one and inseparable, and made by conductivity good metal material, and this material is generally copper, phosphor bronze or stainless steel etc., and if make with beallon, preferable electric wave screening effect also can be provided.
Please cooperate and consult Fig. 3～Fig. 5, wherein fixed part 10 is tabular, be electroconductive elastic sheet in order to the part that engages of circuit board 40; The both side edges of fixed part 10 by outer toward interior extension and be bent upwards and form two elastic pressing part 20a, 20b, by this, not only can form the electroconductive elastic sheet of a low clearance, and because elastic pressing part 20a, 20b extend toward the inboard of fixed part 10, and the expanded range that makes elastic pressing part 20a, 20b is still within fixed part 10, thereby the design of extending outward with respect to aforementioned existing shell fragment and have smaller volume; In addition, this two elastic pressing part 20a, 20b are arranged at the two ends of electroconductive elastic sheet, and both are opposite from the direction of fixed part 10 extensions, so the stressed situation of electroconductive elastic sheet is good and average, and can not produce the distortion that deflection is shifted, and can effectively improve the contact effect and the structural strength of electroconductive elastic sheet; Elastic pressing part 20a, 20b form a contact site 30a, 30b from its upper end horizontal-extending respectively again, are that other electron component 50 contacts part with electroconductive elastic sheet.
The design of elastic pressing part 20a, 20b makes this electroconductive elastic sheet have elasticity in the electroconductive elastic sheet, can guarantee that like this electroconductive elastic sheet can be in desiring to present the excessive extruding phenomenon of appearance between the electronic component 50 of electric connection and the circuit board 40 with circuit board 40; And because elastic pressing part 20a, 20b can produce an elastic-restoring force that makes progress after being compressed, and this strength can make the contact situation between contact site 30a, 30b and the electronic component 50 good.
And the preferred embodiment of above-mentioned electroconductive elastic sheet also comprises at least one 11a of weldering portion, 11b of helping on fixed part 10, is the groove that is positioned at fixed part 10 both sides and caves in toward the inboard in this preferred embodiment and help the 11a of weldering portion, 11b; Because electroconductive elastic sheet needs to be fixed on the circuit board 40 by the action of welding, therefore at first need to desire to be fixed on the position of circuit board 40 with soldering appliance hot melt scolder to electroconductive elastic sheet, and scolder is generally tin, before taking advantage of the scolder ot-yet-hardened electroconductive elastic sheet is placed on the scolder, increase the area of scolder absorption by the setting that helps the 11a of weldering portion, 11b, scolder can extend to groove, and then improves the weld cases of electroconductive elastic sheet and circuit board 40.So, help the demand that position and the visual user of number are set of the 11a of weldering portion, 11b and change, and shown in scheming, do not exceed.
Yet, help another preferred embodiment of the 11a of weldering portion, 11b to can be the projection (not shown) that fixed part 10 is convexly equipped with toward the outside, or be arranged in perforation (not shown) on the fixed part 10, and do not exceed with the above-mentioned groove that is opened in a side of fixed part 10, all can increase the area of scolder absorption by projection on the fixed part 10 and perforation, and reach electroconductive elastic sheet and circuit board 40 presents well secured purpose.
In addition, another preferred embodiment of the present utility model also can be at fixed part 10 and elastic pressing part 20a, the connection part of 20b up is convexly equipped with at least one protuberance 12a, 12b, by protuberance 12a, the setting of 12b and when making electroconductive elastic sheet be installed in circuit board 40, protuberance 12a, have a space 13a between 12b and the circuit board 40,13b, when electroconductive elastic sheet is welded on the circuit board 40, scolder can flow to space 13a, among the 13b, and can overflow to fixed part 10 and elastic pressing part 20a, bent angle below between the 20b, elastic pressing part 20a, 20b then can be because of being fixed by scolder and following the string, and increase along with the electroconductive elastic sheet access times, scolder is difficult drop-off also, and the fixedly situation between fixed part 10 and the circuit board 40 is good; In addition, the demand that the visual user of number is set of protuberance 12a, 12b and changing.
Present embodiment sees also Fig. 5 in use, and this preferred embodiment is that electronic component 50 desires produce electric connection by the electroconductive elastic sheet on the circuit board 40 with circuit board 40; Electroconductive elastic sheet is fixed on the circuit board 40 by welding as mentioned above, electronic component 50 is pushed contact site 30a, the 30b of electroconductive elastic sheet, and then compressing elastic pressing part 20a, 20b, and elastic pressing part 20a, 20b have an elastic-restoring force that makes progress owing to oppressed, this one strength that makes progress can make contact site 30a, 30b and electronic component 50 to contact situation good, thereby produce and electrically connect.
In sum, electroconductive elastic sheet of the present utility model mainly by the both side edges of fixed part 10 by outside toward interior extension and be bent upwards and form elastic pressing part 20a, 20b, in order to the electroconductive elastic sheet of the little and low clearance of a volume to be provided; In addition, be matched with at least one 11a of weldering portion, 11b of helping is set on the fixed part 10, scolder is extended to help the 11a of weldering portion, 11b, and then increase the bonding area of scolder and fixed part 10, and make that the weld cases of electroconductive elastic sheet and circuit board 40 is good; Also can be matched with fixed part 10 is connected part and up is convexly equipped with at least one protuberance 12a, 12b with elastic pressing part 20a, 20b, therefore scolder can overflow to the bent angle between fixed part 10 and elastic pressing part 20a, the 20b, elastic pressing part 20a, 20b can not follow the string, and scolder difficult drop-off, by this, when the user makes electronic component 50 produce electric connection with circuit board 40 with electroconductive elastic sheet, can reach electroconductive elastic sheet is difficult for breaking away from and the good electrically purpose of connecting of generation, in addition, the advantage that also has long service life according to electroconductive elastic sheet of the present utility model.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
1. an electroconductive elastic sheet makes an electronic component (50) constitute with a circuit board (40) and electrically connects, and it is characterized in that:
Described electroconductive elastic sheet comprises a fixed part (10), two elastic pressing parts (20a, 20b) and two contact sites (30a, 30b); Described fixed part (10) is tabular, and is described electroconductive elastic sheet and the part that engages of described circuit board (40); Described these elastic pressing parts (20a, 20b) are arranged at the two ends of described fixed part (10), and from the both side edges of described fixed part (10) by outside toward interior extension and be bent upwards; Described these contact sites (30a, 30b) extend horizontally away from the upper end of described these elastic pressing parts (20a, 20b), and are described electroconductive elastic sheet and the part that contacts of described electronic component (50).
2. electroconductive elastic sheet according to claim 1, the expanded range that it is characterized in that described these elastic pressing parts (20a, 20b) is still within described fixed part (10).
3. electroconductive elastic sheet according to claim 1 is characterized in that described these elastic pressing parts (20a, 20b) are opposite each other from the direction that described fixed part (10) extends.
4. electroconductive elastic sheet according to claim 1 is characterized in that also comprising on the described fixed part (10) at least one weldering portion (11a, 11b) that helps.
5. electroconductive elastic sheet according to claim 4 is characterized in that the described weldering portion (11a, 11b) that helps is a kind of groove that is positioned at described fixed part (10) both sides and caves in toward the inboard.
6. electroconductive elastic sheet according to claim 4 is characterized in that the described weldering portion (11a, 11b) that helps is a kind of projection that is positioned at described fixed part (10) both sides and is convexly equipped with toward the outside.
7. electroconductive elastic sheet according to claim 4 is characterized in that the described weldering portion (11a, 11b) that helps is a kind of perforation that is arranged on the described fixed part (10).
8. electroconductive elastic sheet according to claim 1, it is characterized in that described fixed part (10) up is convexly equipped with at least one protuberance (12a, 12b) with the part that is connected of described these elastic pressing parts (20a, 20b), and be formed with a space (13a, 13b) between described protuberance (12a, 12b) and the described circuit board (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520018087 CN2796191Y (en) | 2005-05-16 | 2005-05-16 | Conductive spring sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520018087 CN2796191Y (en) | 2005-05-16 | 2005-05-16 | Conductive spring sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2796191Y true CN2796191Y (en) | 2006-07-12 |
Family
ID=36813938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520018087 Expired - Fee Related CN2796191Y (en) | 2005-05-16 | 2005-05-16 | Conductive spring sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2796191Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204532A (en) * | 2016-03-17 | 2017-09-26 | 泰科电子(上海)有限公司 | Connector |
| CN107884881A (en) * | 2016-09-30 | 2018-04-06 | 宇龙计算机通信科技(深圳)有限公司 | A kind of light sensation connector construction and terminal |
| CN113783066A (en) * | 2021-08-09 | 2021-12-10 | 番禺得意精密电子工业有限公司 | Electric connector and manufacturing method thereof |
-
2005
- 2005-05-16 CN CN 200520018087 patent/CN2796191Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107204532A (en) * | 2016-03-17 | 2017-09-26 | 泰科电子(上海)有限公司 | Connector |
| CN107884881A (en) * | 2016-09-30 | 2018-04-06 | 宇龙计算机通信科技(深圳)有限公司 | A kind of light sensation connector construction and terminal |
| CN113783066A (en) * | 2021-08-09 | 2021-12-10 | 番禺得意精密电子工业有限公司 | Electric connector and manufacturing method thereof |
| CN113783066B (en) * | 2021-08-09 | 2023-10-24 | 番禺得意精密电子工业有限公司 | Electric connector and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |