CN103578826A - Anti-overheating push switch - Google Patents
Anti-overheating push switch Download PDFInfo
- Publication number
- CN103578826A CN103578826A CN201310546915.8A CN201310546915A CN103578826A CN 103578826 A CN103578826 A CN 103578826A CN 201310546915 A CN201310546915 A CN 201310546915A CN 103578826 A CN103578826 A CN 103578826A
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- plate
- button
- switching
- contact
- push button
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Abstract
The invention belongs to the field of parts of electric switches. An anti-overheating push switch comprises a switch box, wherein a switching-on button and a switching-off button are arranged on the top wall of the switch box, and a movable contact and a fixed contact are arranged in the switch box. The anti-overheating push switch further comprises a swing plate below the two buttons, wherein the two ends of the swing plate are a switching-on end corresponding to the switching-on button and a switching-off end corresponding to the switching-off button respectively, the switching-off end is connected with the movable contact, the swing plate can swing leftward and rightward around a rotating shaft of the swing plate, the switching-on end of the swing plate is connected with a bimetallic top plate, a bimetallic sheet is fixed to the lower portion of the bimetallic top plate, the switching-off end of the swing plate is connected with a side wall of the switch box through an elbow type spring, a contact pressing plate is arranged below the switching-off end of the swing plate, and the contact pressing plate is located above the movable contact.
Description
Technical field
The invention belongs to the part field of electric switch.
Background technology
In various types of electric switches, modal is push-button switch and rocker switch.Rocker switch generally includes the rocker component of changing between can at least two optional stable operation positions corresponding in the optional operator scheme from different.Push-button switch generally includes linear activated button, and this button is by the simple linear motor performance of a definite sequence.
Existing push-button switch adopts slip working method mostly, mainly by conduction seesaw, button, Compress Spring, contact, left and right and switch pedestal, formed, one end of Compress Spring is fixedly installed on the button back side, the other end is provided with slide bar, during work, while relying on button to swing, the power of rocking becomes to making slide bar to slide on seesaw, thereby drive control conduction seesaw to swing, make to be arranged on conduction seesaw both ends upper contact and contact with pedestal upper contact, realize electric joint or disconnection.
Its shortcoming of aforesaid way is: 1. slide bar is easy to wear, thereby the wobble accuracy of impact conduction seesaw causes conducting electricity the contact contact sensitivity at seesaw two ends, and button functional reliability is poor; 2. without overload protection arrangement, when there is overload current, push-button switch easy burn-out.
Summary of the invention
The invention is intended to provide a kind of safe and reliable, highly sensitive and there is the anti-overheated push switch of overload protection function.
Object of the present invention can reach by following measures: anti-overheated push switch, comprise switch enclosure, switch enclosure roof is provided with push button and cut-off push button, in switch enclosure, be provided with moving contact and fixed contact, the pendulum plate that also comprises two button belows, the two ends of pendulum plate are respectively and push button, connection end and open end that cut-off push button is relative, and open end is connected with moving contact, and putting plate can swing around putting plate rotating shaft; Pendulum plate is connected end and is connected with bimetallic top board, and bimetallic top board below is fixed with bimetal leaf; Pendulum plate open end is connected with switch enclosure sidewall by an elbow formula spring, and the below of pendulum plate open end is provided with contact pressing plate, and this contact pressing plate is positioned at moving contact top.
Technique scheme difference with the prior art is: thus adopt the make-and-break contact that swings of putting plate, compare slide bar more durable; While pressing push button, the connection end of pendulum plate moves down, open end lifts, and because open end is connected with moving contact, moves with fixed contact and be connected on moving contact, thereby connect circuit, and elbow formula spring makes to put plate and keeps this state, guarantees the continuous connection of circuit; When pressing cut-off push button, the open end of pendulum plate moves down, connects end and lifts, and open end presses down contact pressing plate, and contact pressing plate presses down moving contact and makes it separated with fixed contact, thus open circuit; When circuit overloads, thereby bimetal leaf is bent upwards and makes to move on bimetal leaf top board, and pendulum plate connects that end lifts, open end moves down, and contact pressing plate presses down movable shake-up and makes it separated with fixed contact, also can open circuit.
Further, for the ease of pressing, described push button lower end is the press head of cultrating, and cut-off push button bottom is comprised of flechette-type press head, reverting bar and button Compress Spring successively, fast open circuit.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the present invention's structural representation of anti-overheated push switch embodiment in fact.
Embodiment
As shown in Figure 1: anti-overheated push switch, comprise switch enclosure 1, switch enclosure 1 roof be from left to right respectively equipped with a push button 2, a cut-off push button 3, push button 2 is from top to bottom comprised of ON button and flechette-type press head successively, cut-off push button 3 is from top to bottom comprised of OFF button, flechette-type press head, reverting bar and button compression bullet 4 springs successively, and in switch enclosure, diapire is provided with fixed contact 5.
Pendulum plate 6 is positioned at the below of push button 2 and cut-off push button 3, and by pendulum plate rotating shaft connection and switch enclosure 1 sidewall, pendulum plate 6 can swing around the rotating shaft of pendulum plate.The end that swings of pendulum plate 6 is respectively relative with push button 2, cut-off push button 3, is to connect end and open end, and this open end is connected with moving contact 11.
The connection end of pendulum plate 6 is connected with bimetal leaf top board 7, and bimetal leaf top board 7 belows are fixed with bimetal leaf 8, and the active layers of this bimetal leaf 8 upward; The open end of pendulum plate 6 is connected with switch enclosure 1 sidewall by an elbow formula spring 9, and the below of the open end of pendulum plate 6 is provided with contact pressing plate 10, and this contact pressing plate 10 is positioned at moving contact 11 tops, and described contact pressing plate 10 is to be made by the colloidal materials insulating.
While pressing ON button, the connection end of pendulum plate 6 moves down, open end lifts, and on moving contact 11, moves with fixed contact 5 and is connected, thereby connect circuit, and elbow formula spring 9 makes to put plate 6 and keeps this state, guarantees the continuous connection of circuit; When pressing OFF button, the open end of pendulum plate 6 moves down, connects end and lifts, and open end presses down contact pressing plate 10, and contact pressing plate 10 presses down moving contact 11 and makes it separated with fixed contact 5, thus open circuit; When circuit overloads, thereby bimetal leaf 8 is bent upwards and makes to move on bimetal leaf top board 7, and the connection end of pendulum plate 6 lifts, open end moves down, and contact pressing plate 10 presses down moving contact 11 and makes it separated with fixed contact 5, also can open circuit.
The foregoing is only the detailed description of preferred embodiment of the present invention, be not used for limiting the present invention, the embodiment of all similar variations of doing according to creation spirit of the present invention, all should be contained among the present invention.
Claims (2)
1. prevent overheated push switch, comprise switch enclosure, switch enclosure roof is provided with push button and cut-off push button, in switch enclosure, be provided with moving contact and fixed contact, it is characterized in that: the pendulum plate that also comprises two button belows, the two ends of pendulum plate are respectively and push button, connection end and open end that cut-off push button is relative, and open end is connected with moving contact, and putting plate can swing around putting plate rotating shaft; Pendulum plate is connected end and is connected with bimetallic top board, and bimetallic top board below is fixed with bimetal leaf; Pendulum plate open end is connected with switch enclosure sidewall by an elbow formula spring, and the below at pendulum plate section beginning is provided with contact pressing plate, and this contact pressing plate is positioned at moving contact top.
2. anti-overheated push switch according to claim 1, is characterized in that: described push button lower end is the press head of cultrating, and cut-off push button bottom is comprised of flechette-type press head, reverting bar and button Compress Spring successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546915.8A CN103578826A (en) | 2013-11-07 | 2013-11-07 | Anti-overheating push switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546915.8A CN103578826A (en) | 2013-11-07 | 2013-11-07 | Anti-overheating push switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103578826A true CN103578826A (en) | 2014-02-12 |
Family
ID=50050377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310546915.8A Pending CN103578826A (en) | 2013-11-07 | 2013-11-07 | Anti-overheating push switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103578826A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195500A (en) * | 2017-07-07 | 2017-09-22 | 佛山市正略信息科技有限公司 | A kind of novel point pusher-type switch |
| CN113270299A (en) * | 2021-06-30 | 2021-08-17 | 宁波友信电器有限公司 | Overcurrent protector with indicating lamp |
-
2013
- 2013-11-07 CN CN201310546915.8A patent/CN103578826A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195500A (en) * | 2017-07-07 | 2017-09-22 | 佛山市正略信息科技有限公司 | A kind of novel point pusher-type switch |
| CN113270299A (en) * | 2021-06-30 | 2021-08-17 | 宁波友信电器有限公司 | Overcurrent protector with indicating lamp |
| CN113270299B (en) * | 2021-06-30 | 2022-04-01 | 宁波友信电器有限公司 | Overcurrent protector with indicating lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |