CN2672831Y - Single sheet type circuit switchs spring sheet - Google Patents
Single sheet type circuit switchs spring sheet Download PDFInfo
- Publication number
- CN2672831Y CN2672831Y CN 03270752 CN03270752U CN2672831Y CN 2672831 Y CN2672831 Y CN 2672831Y CN 03270752 CN03270752 CN 03270752 CN 03270752 U CN03270752 U CN 03270752U CN 2672831 Y CN2672831 Y CN 2672831Y
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- section
- pushing
- distortion
- shell fragment
- segment
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Abstract
The utility model discloses a single sheet type circuit switch spring sheet. Comprising the following parts molded in a whole by a punching mode, such as a welding segment; a deforming buffer segment which is connected with the end edge of the welding segment and extends in a certain angle; a pressing segment connected with the end edge of the deforming buffer segment; two supporting segments which is adjacently connected to the two contrary side edges of the pressing segment and extends in an angle in the direction beyond the pressing segment. The elastic sheet is located to a circuit board by the surface adhesion method. The deforming buffer segment generates the elastic deformation when the pressing segment is stressed to absorb the pushing force in the direction of the welding segment after the pressing segment is stressed. The location steadiness of the welding segment on the circuit board is maintained.
Description
Technical field
The utility model relates to a kind of shell fragment, particularly relates to a kind of with the one-body molded and shell fragment that use as contactor of punching out mode.
Background technology
Generally in electronic product, the switch of press-type is adopted on the interface of man-machine communication usually in large quantities, for example in mobile phone or the home telephone in order to the usefulness that Enters Number push keyboard, computer equipment in order to control panel of the keyboard of importing the literary composition numeral even various household appliances with micro-computer controlling apparatus or the like, all can see the application of press-type switch.
As Fig. 1, the single push-button structure 9 of the keyboard that uses with mobile phone is example, is wherein a kind of structure of press-type switch.
This press-key structure 9 is mounted on the circuit board 8, circuit board 8 is provided with plural electrical contact 81 (only showing single electrical contact 81 on the figure), and press-key structure 9 from bottom to top includes a plastic cement shell fragment 91 in regular turn, one covers the silica gel cover plate 92 on plastic cement shell fragment 91, and button joint 93 on silica gel cover plate 92, wherein, the bottom surface of plastic cement shell fragment 91 is provided with the corresponding conductive part 911 of a position and electrical contact 81, when the user presses down button joint 93, and then compressing silica gel cover plate 92 and plastic cement shell fragment 91 are out of shape downwards, the conductive part 911 of plastic cement shell fragment 91 will contact corresponding electrical contact 81, cause the conducting of circuit and produce an electric signal, and when the user no longer forces in button joint 93, by the elastic-restoring force of plastic cement shell fragment 91, make its conductive part 911 separate and reset with corresponding electrical contact 81.
Yet, from the viewpoint of making, because plastic cement shell fragment 91 is not directly to be fixed on the circuit board 8, but form in advance one in silica gel cover plate 92 corresponding positions for the ccontaining acupuncture point 921 of plastic cement shell fragment 91, utilize silica gel cover plate 92 and circuit board 8 relative fixed again, reach the effect of electrical contact 81 contrapositions on plastic cement shell fragment 91 and the circuit board 8, silica gel cover plate 92 and all acupuncture points 921 must be one-body molded, with the electrical contact 81 on the 921 alignment circuit plates 8 of acupuncture point, and the plastic cement shell fragment 91 of correspondence is contained in respectively in each acupuncture point 921, can be assembled to circuit board 8, because flow process is complicated, make the very difficult automation of assembling process, many at present with artificial assembling, manufacturing cost can't descend.In addition,, also force material cost to improve, and the number of element the more, the more difficult trend that meets thin typeization in product design because a silica gel cover plate 92 must be set.
In addition, as with the keyboard that uses of computer equipment be example, also be the application of another kind of press-type switch.And the button that the press-key structure of the keyboard that computer equipment is used is used than aforementioned mobile phone more complexity and component number are more, so-called scissor support structure is wherein arranged usually in the centre of keycap of pushing for the user and circuit board, perhaps adopt other extra support structures or the like, therefore face the aforementioned shortcoming that automation assembling, material and assembly cost can't further descend that is difficult to equally, and because the non-emphasis for the utility model discussion of the keyboard structure of computer equipment, so no longer be described in further detail with graphic.
The utility model content
The purpose of this utility model is to provide a kind of one-body molded and one chip shell fragment that use as contactor of impact style that utilizes, it can significantly reduce the electronic product element cost of manufacture, and the element that is welded on the circuit board, need not additionally locatees with can utilizing the automation of surface mount method, can significantly reduce the electronic product assembly cost.
One chip contactor shell fragment of the present utility model, it is characterized in that: this shell fragment is one-body molded in the punching out mode, but and utilize the surface mount method be positioned on the circuit board, stressed after the electrical contact of a correspondence on circuit board of elastic reset ground contact, borrow shell fragment to contact with electrical contact to trigger an electric signal, shell fragment includes a welding section, the section of pushing, a distortion breeze way and two hold segment.Wherein:
Welding section be the position in electrical contact one side and solid welding on circuit board, the distortion breeze way is to extend from the ora terminalis of welding section and press from both sides an angle towards extending away from the welding section direction, the section of pushing then connects the ora terminalis of distortion breeze way away from welding section, and hold segment is respectively in abutting connection with the section of pushing two opposite sides edge and press from both sides an angle towards extending away from the section of pushing direction, and be located on the same one side side of the section of pushing with the distortion breeze way, when stress not, distortion breeze way and two hold segment flexibly support the section of pushing jointly, make push Duan Zaiwei when stressed and electrical contact keep a spacing distance and in order to bear one to circuit board approaching push strength, and it is stressed and during near circuit board in the section of pushing, the distortion breeze way produces strain with the push strength of the absorption section of pushing to the compressing of welding section direction, in order to keep the location steadiness of welding section on circuit board.
One chip contactor shell fragment of the present utility model, directly be welded on the circuit board by welding section, push the design of strength behind the cooperation distortion breeze way absorption section of the pushing pressurized to the welding section direction, make that only needing single shell fragment promptly to can be used as contactor uses, and need not other complicated locating structures, still be not that material cost reduces, its minimizing of forming member also can reach the possibility of the further thin typeization of electronic product.The more important thing is, utilize the push section of the adsorbent equipment of automation equipment with the absorption shell fragment, and then single shell fragment moved on the circuit board on any certain location, and utilize the surface mount method to be welded on the circuit board rapidly and accurately, the surface mount technology of this kind automation is the quite ripe fabrication schedule of industry, design of the present utility model is kind in this automatable advantage, make and to have more efficient on being located by connecting of the shell fragment that uses as contactor and circuit board, also can significantly save the cost of making and assembling, so can reach the purpose of this utility model really.
In order further to understand the utility model essence, shell fragment of the present utility model is elaborated below by the drawings and the specific embodiments.
Description of drawings
Fig. 1 is a kind of cross-sectional schematic of press-key structure in the past;
Fig. 2 is a stereogram, illustrate preferred embodiment 1 of the present utility model shape structure and with a circuit board on the circuit trace relation of electrical contact;
Fig. 3 is a stereogram, and the circuit trace relation of electrical contact on this preferred embodiment 1 and another circuit board is described;
Fig. 4 is a schematic side view, and the state that this preferred embodiment 1 is not stressed is described;
Fig. 5 is a schematic side view, and this preferred embodiment 1 state after stressed is described;
Fig. 6 is a stereogram, illustrates that this preferred embodiment 1 has additional the structure of a contact site;
Fig. 7 is a schematic side view, the state after the shell fragment of key diagram 6 is stressed;
Fig. 8 is a stereogram, and the structure of preferred embodiment 2 of the present utility model is described;
Fig. 9 is a stereogram, and the structure of preferred embodiment 3 of the present utility model is described; And
Figure 10 is a stereogram, and the structure of preferred embodiment 4 of the present utility model is described.
Embodiment
Embodiment 1
Consult Fig. 2 and Fig. 3, the preferred embodiment 1 of one chip contactor shell fragment 5 of the present utility model is to utilize conductive metallic material integrated punching bending forming and the structure that constitutes a single sheet, make shell fragment 5 be applied on the circuit board 2, circuit board 2 surfaces then are formed with plural electrical contact 21 (being representative with single electrical contact 21 only on the figure) in advance, and stick together the needs of method and be provided with two weld pads 22 on circuit board 2 surfaces at the two opposite sides matching surface of electrical contact 21.As Fig. 2, a weld pad 22 wherein is to be connected with a circuit trace 23, and electrical contact 21 is the electric conducting material formation of single area, can be connected with another circuit trace 24, make circuit trace 23 and circuit trace 24 form the circuit breaker state, make its circuit turn-on to trigger an electric signal with the contacting (the back narration is held in effect) of electrical contact 21 by shell fragment 5.For another shown in Figure 3, electrical contact 21 also can be divided into disconnected one first conduction region 211 and one second conduction region 212 mutually, first conduction region 211 is connected with a circuit trace 25, and second conduction region 212 is connected with another circuit trace 26, so make circuit trace 25 and circuit trace 26 form the circuit breaker state, can make its circuit turn-on to trigger an electric signal with the contacting (promptly contacting first conduction region 211 and second conduction region 212 simultaneously) of electrical contact 21 by shell fragment 5 equally.Certainly, the pattern of other electrical contacts 21 is arranged also, only lift two example explanations herein, non-for limiting the range of application of the utility model shell fragment 5.
As Fig. 2 and shown in Figure 4, shell fragment 5 of the present utility model includes two welding sections 51,56, two distortion breeze way 53,55, a section of pushing 52 and two hold segment 54.
Two distortion breeze ways the 53, the 55th, self- corresponding welding section 51,56 ora terminalis toward each other extends with the direction away from welding section 51,56 towards the top respectively.In this example, distortion breeze way 53 has one from the welding section 51 ora terminalis bend 531 of bending extension inwardly in opposite directions, and one connect bend 531 and upwardly extending erection part 532, and this bend 531 is with reverse U shape cross section kenel institute bending formation.And distortion breeze way 55 also is to adopt same modality.
The two opposite sides of the section of pushing 52 then connects the ora terminalis of the erection part of distortion breeze way 53,55 away from welding section 51,56 respectively.In this example, the section of pushing 52 bearing of trends are general parallel with circuit board 2 plane bearing of trends, its purpose in order to bear one to circuit board 2 approaching push strength, but the section of pushing 52 is to maintain a spacing distance with circuit board 2 under not stressed state, and connect electrical contact 21 this moment on the circuit board 2 circuit is an off state.
Again simultaneously with reference to Fig. 5, when the section of pushing 52 is subjected to pressure downward shown in the figure solid arrow (for example the user depresses the state of button), the section of pushing 52 will be bent downwardly distortion and touch electrical contact 21, by the conductive characteristic of shell fragment 5 materials own, make on the circuit board 2 circuit turn-on and produce an electric signal.On the other hand, because welding section 51 is to be fixed on the circuit board 2, and the section of pushing 52 stressed being bent downwardly can be just like the strength of pushing to side welding section 51 directions respectively shown in the figure dotted line arrow when being out of shape, for avoiding the destruction that steadiness is subjected to the side direction shearing that is connected of welding section 51 and weld pad 22, distortion breeze way 53 just plays a role at this moment, bend 531 by distortion breeze way 53 produces the deformation effect of elastic compression to absorb the most strength of pushing on side surface direction, make welding section 51 firmly be positioned on the circuit board 2, being out of shape breeze way 55 in addition also is to have same function, and welding section 56 firmly is positioned on the circuit board 2.Simultaneously, hold segment 54 also can produce strain and its free end is upheld towards the direction away from the section of pushing 52, has the effect of strengthening the section of pushing 52 elastic resets, in addition, hold segment 54 can produce the sound of " answer, answer " in the process of distortion and answer original shape, when shell fragment 5 is applied to keyboard structure, can constitute as conventional keyboard similar acoustics when knocking keyboard.And after the section of pushing 52 stressed disappearances, but has the characteristic of elastic recovery and reinstatement based on shell fragment 5 materials.
Figure 6 and Figure 7 for another example, in order further to increase section of pushing 52 and the electrical contact 21 electrical reliabilities that contact, can be simultaneously when shell fragment 5 drawings the centre of the section of pushing 52 towards set out one below two welding sections, 51,56 centres circuit board 2 directions be the contact site 521 of standing shape, the section of pushing 52 stressed and to circuit board 2 near the time, contact with electrical contact 21 by contact site 521, to guarantee the accuracy on both contact positions.
As Fig. 8, it is the shell fragment 5 of preferred embodiment 2 of the present utility model, its structure mainly is to have omitted distortion breeze way 55 and the welding section 56 (can contrast shown in Figure 6) that preferred embodiment 1 is positioned at the section of pushing 52 1 sides, make the section of pushing 52 only form supported at three point jointly and get final product that all the other structures are identical with preferred embodiment 1 by a distortion breeze way 53 and two hold segment 54.
Embodiment 3 and embodiment 4
Again with reference to figure 9 and Figure 10, it is the shell fragment 6 of preferred embodiment 3 of the present utility model and embodiment 4, its structure can contrast Fig. 6 and Fig. 8 respectively, it is bowed state outside the employing that the thought difference is in the form of distortion breeze way 63 or distortion breeze way 65, this is out of shape breeze way 63,65th, directly from this welding section 61 in opposite directions the curved state of ora terminalis to connect corresponding this section of pushing 62 ora terminalis.
Reach equally by the change of distortion breeze way 63 or 65 arc curvature and to absorb the push strength of the section of pushing 62, so that each welding section 61 or 66 has preferable connection steadiness on circuit board to welding section 61 or 66 directions.All the other structures partly are then identical with aforementioned preferred embodiment with effect, as being example with the section of pushing 62, formed the mode of appearance of differences such as circle also changing in shape.
Claims (6)
1, a kind of one chip contactor shell fragment, the distortion breeze way, that includes a welding section, this welding section of connection connects the section of pushing of this distortion breeze way, and the hold segment of two these sections of pushing of connection, it is characterized in that:
This distortion breeze way is to extend from the ora terminalis of this welding section and press from both sides an angle towards extending away from this welding section direction, this section of pushing is the ora terminalis away from this welding section that connects this distortion breeze way, this two hold segment is then respectively in abutting connection with this section of pushing two opposite sides edge and press from both sides an angle towards extending away from this section of pushing direction again, and with the same one side side of this distortion breeze way coordination in this section of pushing.
2, one chip contactor shell fragment as claimed in claim 1 is characterized in that: this distortion breeze way has a bend from this welding section ora terminalis bending extension, and the erection part of this bend of connection and this section of pushing ora terminalis.
3, one chip contactor shell fragment as claimed in claim 2 is characterized in that: this bend be with a reverse U shape cross section kenel bending constitute.
4, one chip contactor shell fragment as claimed in claim 1 is characterized in that: this distortion breeze way be directly from this welding section in opposite directions the curved state of ora terminalis to connect this corresponding section of pushing ora terminalis.
5, one chip contactor shell fragment as claimed in claim 1 is characterized in that: this section of pushing is provided with a contact site that is standing shape to this welding section and hold segment third side to dashing.
6, one chip contactor shell fragment as claimed in claim 1 is characterized in that: this section of pushing more is provided with a distortion breeze way and a welding section of same modality at opposite another ora terminalis that connects this distortion breeze way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270752 CN2672831Y (en) | 2003-08-14 | 2003-08-14 | Single sheet type circuit switchs spring sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03270752 CN2672831Y (en) | 2003-08-14 | 2003-08-14 | Single sheet type circuit switchs spring sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2672831Y true CN2672831Y (en) | 2005-01-19 |
Family
ID=34473597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03270752 Expired - Fee Related CN2672831Y (en) | 2003-08-14 | 2003-08-14 | Single sheet type circuit switchs spring sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2672831Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108012208A (en) * | 2016-10-27 | 2018-05-08 | 茂邦电子有限公司 | The acoustic control module used for earphone |
| CN108092020A (en) * | 2017-12-04 | 2018-05-29 | 珠海格力电器股份有限公司 | Shrapnel and electronic equipment |
| CN114103131A (en) * | 2021-11-30 | 2022-03-01 | 重庆卡福汽车制动转向系统有限公司 | Thermal insulation housing welding device with deformable welding edge |
-
2003
- 2003-08-14 CN CN 03270752 patent/CN2672831Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108012208A (en) * | 2016-10-27 | 2018-05-08 | 茂邦电子有限公司 | The acoustic control module used for earphone |
| CN108092020A (en) * | 2017-12-04 | 2018-05-29 | 珠海格力电器股份有限公司 | Shrapnel and electronic equipment |
| CN114103131A (en) * | 2021-11-30 | 2022-03-01 | 重庆卡福汽车制动转向系统有限公司 | Thermal insulation housing welding device with deformable welding edge |
| CN114103131B (en) * | 2021-11-30 | 2024-02-02 | 重庆卡福汽车制动转向系统有限公司 | Welding device for heat preservation housing with deformable welding edge |
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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 |