CN103578851A - Overheating protection button switch - Google Patents
Overheating protection button switch Download PDFInfo
- Publication number
- CN103578851A CN103578851A CN201310546940.6A CN201310546940A CN103578851A CN 103578851 A CN103578851 A CN 103578851A CN 201310546940 A CN201310546940 A CN 201310546940A CN 103578851 A CN103578851 A CN 103578851A
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- CN
- China
- Prior art keywords
- button
- pressing plate
- rod
- bar
- jaw
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Abstract
The invention belongs to the field of electric switch parts and relates to an overheating protection button switch which comprises a base body, a connecting button and a disconnecting button. The connecting button comprises a button cap, a connecting rod, a movable contact and a fixed contact. The disconnecting button comprises a disconnecting rod and a reset spring. A jaw rod and double metal pieces are arranged on the base body. The jaw rod is fixed on the base body through a jaw rod rotating shaft. A hook jaw and a pressing plate are arranged at the two ends of the jaw rod respectively. The pressing plate is connected with a pressing spring. Deforming ends of the double metal pieces are fixed on the pressing plate. The front end of the connecting rod is provided with a clamping head which can be clamped with the hook jaw. The disconnecting rod abuts against the jaw rod pressing plate. The overheating protection button switch is safe, reliable and high in sensitivity and has a circuit overload protection function.
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 overtemperature protection push-button switch of overload protection function.
Object of the present invention can reach by following measures: overtemperature protection push-button switch, comprise pedestal, push button and cut-off push button, push button comprises button cap, connects bar, moving contact and fixed contact, cut-off push button comprises trip arm and back-moving spring, described pedestal is provided with claw bar and bimetal leaf, and claw bar is fixed on pedestal by claw bar rotating shaft, and the two ends of claw bar are respectively and hook pawl and pressing plate, pressing plate is connected with a stage clip, and the deformed end of bimetal leaf is fixed on this pressing plate; The dop of described connection bar front end for blocking with hook pawl, trip arm props up claw bar pressing plate.
Technique scheme difference with the prior art is: adopt connection bar to press moving contact and contact with fixed contact, thereby connection circuit, compare slide bar connection circuit more reliable, in addition, connect bar when pressing down, the dop of its front end can promote claw bar and turn clockwise, and final dop blocks with hook pawl, make push button keep pressed status, namely circuit keeps on-state; Press cut-off push button, trip arm presses down claw bar pressing plate, and claw bar is rotated counterclockwise, and drives hook pawl separated with dop, connects bar homing, and circuit disconnects; When overload appears in electric current, the distortion of bi-metal plate deformed end, presses down claw bar pressing plate, and claw bar is rotated counterclockwise, thus open circuit.
Further, described bimetal leaf quantity is two, lays respectively at the both sides of pressing plate, can further increase the dynamics that presses down of bimetal leaf, 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 that the real overtemperature protection push-button switch of the present invention is executed routine structural representation.
Embodiment
As shown in Figure 1: overtemperature protection push-button switch, comprise pedestal 1, push button and cut-off push button, push button and cut-off push button are oppositely arranged and are all positioned at pedestal 1 top.Push button comprises from top to bottom button cap, connects bar 2, moving contact 3 and fixed contact 4, and moving contact 3 is arranged on to be connected on bar 2, contacts, thereby connect circuit at connection bar 2 in the process moving down with fixed contact 4.The front end of connecting bar 2 is tip dop 21 upward.Cut-off push button comprises cut-off push button cap, trip arm 5 and back-moving spring, press after cut-off push button, cut-off push button cap and trip arm 5 can be under the effect of back-moving spring homing.
On described pedestal 1, along trip arm 5 and connection bar 2 place straight lines, claw bars 6 are installed, this claw bar 6 is hinged on pedestal by claw bar rotating shaft, and one end that claw bar 6 is relative with connecting bar 1 is tip pawl head 61 down, and this pawl head 61 matches with dop 21.One end that claw bar 6 is relative with trip arm 5 is pressing plate 62, between pressing plate 62 and pedestal 1, is fixed with stage clip.The both sides of claw bar 6 are equipped with the bimetal leaf 7 that is arranged in circuit, and the deformed end of this bimetal leaf 7 is all fixed on pressing plate 62 end faces, and the passive layer of bimetal leaf 7 is close to pressing plate 62, and active layers is positioned at passive layer end face.
During use, press push button, moving contact 3 contacts with fixed contact 4, thereby connects circuit, connects dop 21 promotion hook pawls 61 in bar 2 folding processes and moves down, thereby claw bar 6 clockwise rotates, when claw bar 6 clockwise rotates maximum position, dop 21 blocks mutually with hooking pawl 61, fixes and connects bar 2, make push button keep pressed state, circuit keeps on-state.Press cut-off push button, the pressing plate 62 that trip arm 5 promotes claw bar 6 moves down, thereby claw bar 6 rotates counterclockwise, make pawl head 61 separated with dop 21, connect on bar 2 and retract reposition, moving contact 3 is separated with fixed contact 4, open circuit, and cut-off push button also homing under the effect of back-moving spring.When circuit overloads, the distortion of the active layers of bimetal leaf 7 deformed end is greater than passive layer, thereby be bent downwardly, presses pressing plate 62, and claw bar 6 is rotated counterclockwise, thus 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. overtemperature protection push-button switch, comprise pedestal, push button and cut-off push button, push button comprises button cap, connects bar, moving contact and fixed contact, cut-off push button comprises trip arm and back-moving spring, it is characterized in that: described pedestal is provided with claw bar and bimetal leaf, claw bar is fixed on pedestal by claw bar rotating shaft, and the two ends of claw bar are respectively and hook pawl and pressing plate, pressing plate is connected with a stage clip, and the deformed end of bimetal leaf is fixed on this pressing plate; The dop of described connection bar front end for blocking with hook pawl, trip arm props up claw bar pressing plate.
2. overtemperature protection push-button switch according to claim 1, is characterized in that: described bimetal leaf quantity is two, lays respectively at the both sides of pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546940.6A CN103578851A (en) | 2013-11-07 | 2013-11-07 | Overheating protection button switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310546940.6A CN103578851A (en) | 2013-11-07 | 2013-11-07 | Overheating protection button switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103578851A true CN103578851A (en) | 2014-02-12 |
Family
ID=50050400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310546940.6A Pending CN103578851A (en) | 2013-11-07 | 2013-11-07 | Overheating protection button switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103578851A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128878A (en) * | 2016-08-18 | 2016-11-16 | 北源科技有限公司 | Intelligent breaker |
| CN106710985A (en) * | 2017-01-06 | 2017-05-24 | 国网山东省电力公司冠县供电公司 | Breaker switch operating mechanism |
| CN111508742A (en) * | 2020-04-21 | 2020-08-07 | 广州新域机电制造有限公司 | Mechanical interlocking button switch |
-
2013
- 2013-11-07 CN CN201310546940.6A patent/CN103578851A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128878A (en) * | 2016-08-18 | 2016-11-16 | 北源科技有限公司 | Intelligent breaker |
| CN106128878B (en) * | 2016-08-18 | 2017-05-24 | 北源科技有限公司 | Intelligent circuit breaker |
| CN106710985A (en) * | 2017-01-06 | 2017-05-24 | 国网山东省电力公司冠县供电公司 | Breaker switch operating mechanism |
| CN106710985B (en) * | 2017-01-06 | 2020-05-15 | 纵达电器有限公司 | Circuit breaker switch operating mechanism |
| CN111508742A (en) * | 2020-04-21 | 2020-08-07 | 广州新域机电制造有限公司 | Mechanical interlocking button switch |
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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 |