CN1104366A - Micro switch - Google Patents
Micro switch Download PDFInfo
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- CN1104366A CN1104366A CN 94115700 CN94115700A CN1104366A CN 1104366 A CN1104366 A CN 1104366A CN 94115700 CN94115700 CN 94115700 CN 94115700 A CN94115700 A CN 94115700A CN 1104366 A CN1104366 A CN 1104366A
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- movable platen
- housing
- fixed
- microswitch
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Abstract
An microswitch has a construction, in which a movable plate is elastically supported by an elastic member such as a helical tension spring in place of an existing blade spring. An axial center of this elastic member ascends and descends by ascending and descending operation of a button 16 which is coupled to an upper wall of a case. Accordingly, the movable plate selectively touches one of fixed terminals. This present invention has a simple construction and high reliability for operation.
Description
The present invention relates to microswitch (microswitch), the microswitch that particularly structure is simpler, the switching manipulation reliability is higher.
Attached Fig. 1 and 2 illustrates the structure of prior art microswitch.As according to microswitch shown in attached Fig. 1 and 2, be respectively equipped with the fixed terminal (2,3) of contact (2a, 3a), it separates up and down on the sidewall (1a) that is individually fixed in housing (1) at certain intervals.Common terminal (4) is fixed in lower wall (1b).Utilize the elastic force of plate-shaped springs (5), movable platen (6) and anchor (7) are intermeshed and be assembled on the regulation position of this common terminal.Be provided with guide hole (1d) on the upper wall (1c) of above-mentioned housing (1), button (8) liftable with movable platen (6) pushing in this guide hole (1d) is connected on the upper wall (1c) freely.Be respectively equipped with the contact (6a, 66) of contact (2a, the 3a) contact of same fixed terminal (2,3) in the top and bottom of above-mentioned movable platen (6) one sides.
So the operational circumstances of the prior art microswitch that constitutes is as follows.
On the button shown in the accompanying drawing 1 (8), do not add under the state of external force, because the elastic force of plate-shaped springs (5), movable platen (6) are subjected to the power that will rise upward, and this climbing power is stoped because of button (8), therefore, another shaft portion of movable platen (6) then rises.Therefore, go up at the contact (2a) of top fixed terminal (2) and contact with the contact (6a) of movable platen (6), thus top fixed terminal (2) and movably pull out (6) and common terminal (4) with regard to electric the contacting of formation.
In this state, as shown in Figure 2, be subjected to the external force effect as button (8), along guide hole (1d) decline, then because button (8) descends, movable platen (6) also descends.As the displacement of movable platen (6) of decline drop to the dead point (5) (dead point) of plate-shaped springs when above, formed contact (6b) touches the contact (3a) of bottom fixed terminal (3) below movable platen (6), therefore, bottom fixed terminal (3) and movable platen (6) and common terminal (4) electrically contact with regard to constituting.
On the other hand, as shown in Figure 2, under the state that button (8) descends, when the power that adds is removed, then because elastic force makes plate-shaped springs (5) recover the origin-location.Therefore, microswitch returns to the original state as accompanying drawing 1.
Yet above-mentioned such prior art microswitch has following shortcoming: the constitutional detail number increases, and its complex structure is difficult for assembling, and therefore, percent defective increases, assemble time-consuming, the rise of parts expense.In addition, owing to be the elastic force that utilizes plate-shaped springs, the load of spring is manageability not, because the operation of parts is not noticed that caused load variations is remarkable, therefore, makes the worry increase of people to faulty operation.In addition, when assembling, because possibility handwork hardly needs to supply the special purpose machinery of assembling automatically, so the high problem of manufacturing expense is arranged again.
The object of the invention is: a kind of microswitch that makes its designs simplification that reduces by parts is provided.
Another purpose of the present invention is: provide a kind of by replacing plate-shaped springs to make the microswitch that carries out quality management easily with helical spring.
Still a further object of the present invention is: provide a kind of not only with mounter but also the microswitch that also can assemble of operation by hand.
The present invention seeks to reach like this: a kind of microswitch is provided, and the structure of this microswitch comprises: housing; Be individually fixed in two fixed terminals on described housing one sidewall at certain intervals; Be fixed in the common terminal of above-mentioned housing lower wall; Be rotatably connected on the above-mentioned common terminal and selectively with the said fixing terminal in any movable platen that electrically contacts; Along the formed liftably conjugate button of wall of leading of the upper wall of above-mentioned housing; One side end is fixed on the housing, end side and above-mentioned movable platen link fixing, any carries out the elastomeric element of selective exposure in above-mentioned movable platen and the said fixing terminal for the lifting action owing to above-mentioned button makes.
In the present invention, above-mentioned common terminal is provided with the formed a pair of hinge locking ditch in both sides, end thereon, above-mentioned movable platen has the support protrusion portion that forms in one side end both sides, and under this support protrusion portion inserted state in the above-mentioned hinge locking ditch respectively, above-mentioned movable platen rotated.
In addition, above-mentioned elastomeric element is the draft helical spring that flexibly supports above-mentioned movable platen, the one side end is fixedly linked on formed fixed protrusion on the above-mentioned inner walls, the intermediate portion is by the recess of above-mentioned common terminal and the recess of above-mentioned movable platen, and end side then is fixedly linked at the inboard formed locking fixing hole of above-mentioned movable platen recess.
In the microswitch of the present invention that so constitutes, under the state that does not apply external force on the button because the elastic force of elastomeric element (also being draft helical spring), movable platen be subjected to upward to power, therefore, movable platen contacts with the top fixed terminal.
In addition, when descending because of external force as button, the central part of button bottom compressing elastomeric element, when the axial center of this elastomeric element by the dead point consistent with the movable platen direction of principal axis, then the elastic force of elastomeric element is towards the downside effect, and movable platen is rotated to direction down.Therefore, movable platen is contacted with the bottom fixed terminal.On the other hand, when the external force on the button was removed, elastomeric element was owing to elastic force recovers original form, and therefore, movable platen contacts with the top fixed terminal once again to direction rotation up.
The present invention has good result, because microswitch overall structure of the present invention is simplified, therefore, producing cost reduces, and assembling operation is more prone to, and can prevent the generation of assembly failure.In addition, carry out switching manipulation owing to utilize the elastic force of draft helical spring to make, therefore, easy operating not only is easier to carry out quality management under the monotonic loading adjustment, and not only with the assembling special purpose machinery by hand operation also can assemble.
Below the present invention is described in detail by drawings and Examples.
Accompanying drawing 1 and accompanying drawing 2 are respectively the structure and the operate condition stereograms of prior art microswitch, have narrated at leading portion.
Accompanying drawing 3 is stereograms of microswitch structure normal condition of the present invention;
Accompanying drawing 4 is the button of microswitch structure of the present invention stereograms when being pressed state;
Accompanying drawing 5 is exploded perspective views of A part in the accompanying drawing 4.
About being described as follows of used label among the figure:
The 11-housing; A sidewall of 11a, 11b, 11c-housing, lower wall, upper wall; The guide channel of 11d-housing; The 11e-housing because of deciding lug boss
12,13-fixed terminal; The 14-common terminal;
14a, 15a-recess; 14c-hinge locking ditch
The 15-movable platen; The 15b-contact; 15c-supporting projections portion
15d-locking fixing hole; The 16-button;
17-elastomeric material (draft helical spring)
Accompanying drawing 3 and 4 is that the structure of microswitch embodiment of the present invention and the three-dimensional oblique view of operation are shown respectively.Accompanying drawing 5 is exploded perspective oblique views of A part in the accompanying drawing 4.With reference to accompanying drawing 3～accompanying drawing 5, microswitch of the present invention is provided with: housing (11); The fixed terminal (12,13) of fixed contact (12a, 13a) is gone up and be respectively equipped with to a sidewall (11a) that is individually fixed in this housing (11) at certain intervals; Be fixed in the common terminal (14) of above-mentioned housing (11) lower wall (11b); Movable platen (15) with the travelling contact (15a, 15b) that is rotatably connected to that above-mentioned common terminal (14) goes up and electrically contacts with said fixing terminal (12,13); Along the formed liftably conjugate button of wall (11d) (16) of leading of the upper wall (11c) of above-mentioned housing (11); One side end is fixed in that housing (11) is gone up, end side with movable platen (15) is connected and fixed, for any carries out the elastomeric element (17) of selective exposure in above-mentioned movable platen (15) and the said fixing terminal because the lifting action of above-mentioned button makes.
Above-mentioned common terminal (14) mid portion in the top forms the roughly recess of U font (14a), forms support portion (14b) respectively in its both sides, forms hinge locking ditch (14c) respectively in the both sides of this support portion (14b).Above-mentioned movable platen (15) as shown in Figure 5, form the roughly recess of U font (15a) at the one side end, form support portion (15b) in its both sides respectively, on the both side ends of this support portion (15b), form the support protrusion portion (15c) in two the hinge locking ditches (14c) that are inserted in common terminal (14) respectively.
Above-mentioned elastomeric element (17), it is the draft helical spring that flexibly supports above-mentioned movable platen, the one side end is fixedly linked on formed fixed protrusion (11e) on housing (1) inwall, the intermediate portion is by the recess (14a) of common terminal (14) and the recess (15a) of movable platen (15), and end side then is fixedly linked on the inboard formed locking fixing hole of above-mentioned recess (15a) (15d).
The mode of operation of the microswitch of the present invention that so constitutes below is described.
As shown in Figure 3, do not add under the state of external force on button (16), because the elastic force of elastomeric element (17), movable platen (15) is subjected to the power of direction up.Therefore, above the movable platen (15) formed contact (15b) since with top fixed terminal (12) contact top fixed terminal (12) and movable platen (15) and common terminal 914) form electric contacting.
On the other hand, in this state, as shown in Figure 4, when descending owing to external force as button, the central part of the bottom of button (16) compressing elastomeric element (17), therefore, the axial centre of this elastomeric element (17) descends.Under this state, when the axial centre of elastomeric element (17) was passed through the dead point (dead point) consistent with the axial centre of movable platen, the elastic force of elastomeric element (17) rotated movable platen (15) downwards to the downside effect.
Therefore, because formed contact (15b) contacts with bottom fixed terminal (13) below movable platen (15), bottom fixed terminal (13) forms contacting of electricity with movable platen (15) and common terminal (14).
Under above-mentioned state, when will be when the external force on the button (16) is removed, elastomeric element (17) be owing to elastic force recovers original form, and movable platen (15) rotates again upward.Therefore, such as shown in Figure 3, movable platen (15) is got back to the normal condition that electrically contacts with top fixed terminal (12).
Claims (3)
1, a kind of microswitch is characterized in that being made up of following parts: housing; Be individually fixed in two fixed terminals on described housing one sidewall at certain intervals; Be fixed in the common terminal of above-mentioned housing lower wall; Be rotatably connected on the above-mentioned common terminal and selectively with the said fixing terminal in any movable platen that electrically contacts; Along the formed liftably conjugate button of wall of leading of the upper wall of above-mentioned housing; One side end is fixed on the housing, end side and above-mentioned movable platen link fixing, any carries out the elastomeric element of selective exposure in above-mentioned movable platen and the said fixing terminal for the lifting action owing to above-mentioned button makes.
2, according to the described microswitch of claim 1, it is characterized in that: above-mentioned common terminal is provided with the formed a pair of hinge locking ditch in both sides, end thereon, above-mentioned movable platen has the support protrusion portion that forms in one side end both sides, under this support protrusion portion inserted state in the above-mentioned hinge locking ditch respectively, above-mentioned movable platen rotated.
3, according to the described microswitch of claim 1, it is characterized in that: above-mentioned elastomeric element is the draft helical spring that flexibly supports above-mentioned movable platen, the one side end is fixedly linked on formed fixed protrusion on the above-mentioned inner walls, the intermediate portion is by the recess of above-mentioned common terminal and the recess of above-mentioned movable platen, and end side then is fixedly linked on the inboard formed locking fixing hole of above-mentioned movable platen recess.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KRU93-18595 | 1993-09-16 | ||
| KR1019930018595A KR970003679B1 (en) | 1992-09-17 | 1993-09-16 | Thermal image detecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1104366A true CN1104366A (en) | 1995-06-28 |
Family
ID=19363624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94115700 Pending CN1104366A (en) | 1993-09-16 | 1994-09-16 | Micro switch |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH07153347A (en) |
| CN (1) | CN1104366A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390914C (en) * | 2003-05-22 | 2008-05-28 | 德丰零件有限公司 | Power tool trigger assembly |
| WO2018214908A1 (en) * | 2017-05-26 | 2018-11-29 | 青岛海尔洗衣机有限公司 | Novel microswitch |
| CN113903610A (en) * | 2021-11-18 | 2022-01-07 | 青岛易来智能科技股份有限公司 | Switch with press prompt |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6608415B2 (en) | 2017-06-01 | 2019-11-20 | ディーフォン エレクテック カンパニー リミテッド | Contact lever for use in electrical switch assemblies |
| CN107749363B (en) * | 2017-12-04 | 2020-10-02 | 漳州聚安美电气科技有限公司 | Micro switch |
-
1994
- 1994-09-16 CN CN 94115700 patent/CN1104366A/en active Pending
- 1994-09-16 JP JP22169394A patent/JPH07153347A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390914C (en) * | 2003-05-22 | 2008-05-28 | 德丰零件有限公司 | Power tool trigger assembly |
| WO2018214908A1 (en) * | 2017-05-26 | 2018-11-29 | 青岛海尔洗衣机有限公司 | Novel microswitch |
| CN113903610A (en) * | 2021-11-18 | 2022-01-07 | 青岛易来智能科技股份有限公司 | Switch with press prompt |
| CN113903610B (en) * | 2021-11-18 | 2024-04-26 | 青岛易来智能科技股份有限公司 | Switch with press prompt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07153347A (en) | 1995-06-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |