CN204885059U - Breaker - Google Patents
Breaker Download PDFInfo
- Publication number
- CN204885059U CN204885059U CN201520617718.5U CN201520617718U CN204885059U CN 204885059 U CN204885059 U CN 204885059U CN 201520617718 U CN201520617718 U CN 201520617718U CN 204885059 U CN204885059 U CN 204885059U
- Authority
- CN
- China
- Prior art keywords
- copper sheet
- conductive copper
- thermistor
- bimetal leaf
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
The utility model provides a breaker, is including insulating frame, conductive copper sheet 1, and conductive copper sheet 2, thermistor and bimetallic strip, this bimetallic strip is synthetic by two -layer the thermal expansion coefficient different materials, and the opposite direction that can face under high temperature and the normal atmospheric temperature warp to this comes the disconnection or connects two conductive copper sheet, causes closing of circuit and disconnection. This technical scheme simple structure, small in size to can used repeatedly, be applicable to in the accurate part product.
Description
Technical field
The utility model relates to a kind of circuit breaker, and especially a kind of high temperature auto-breaking is protected and can reusable circuit breaker.
Background technology
Along with the development of electric equipment products; the safety problem of electric equipment products is also more and more subject to people and payes attention to; and the overtemperature protection problem of electric equipment products is exactly wherein important problem; electric equipment products volume is more and more less; and traditional circuit breaker general structure more complicated; volume is comparatively large, or can not reuse, and causes the difficulty in use.
Summary of the invention
In order to solve the deficiency of existing circuit breaker, the utility model provides a kind of circuit breaker with bimetal leaf, and not only structure is simple, and compact, is applicable to numerous electric equipment products.
The technical solution of the utility model is: a kind of circuit breaker, comprises dielectric moldings, conductive copper sheet 1, conductive copper sheet 2, and thermistor and one can with the bimetal leafs of temperature deformation.This bimetal leaf is that shape is hemisphere by two-layer thermal expansion coefficients different materials synthesis, and because the thermal expansion coefficients of bi-material is different, this bimetal leaf at ambient and elevated temperatures can towards contrary Direction distortion.
Conductive copper sheet 1 and conductive copper sheet 2 are arranged in dielectric moldings, and respectively have one end to extend the access point of dielectric moldings as circuit.In dielectric moldings, one end of conductive copper sheet 1 is provided with thermistor, and one end of conductive copper sheet 2 is provided with bimetal leaf, and bimetal leaf is connected with thermistor.
Under normal temperature state, bimetal leaf bends towards thermistor, and thermistor is just in the spherical hollow of bimetal leaf, and conductive copper sheet 1 is communicated with conductive copper sheet 2, and circuit is that closure state runs well.
At high operating temperatures, bimetal leaf is out of shape towards the opposite direction of thermistor, and opening is towards conductive copper sheet 2 and backed down conductive copper sheet 2 junction with conductive copper sheet 1, and like this, conductive copper sheet 1 is connected disconnection with the direct of conductive copper sheet 2, the disconnection of normality circuit.Electric current is via thermistor and this connection of bimetal leaf.Due to thermistor Resistance Maximum under high temperature, only have a small amount of electric current to pass through between conductive copper sheet 1 and conductive copper sheet 2, form a dry circuit state, signal does not cut off still in transmission.So just reach the effect of high temperature power-off.
When temperature is cooled to normal condition, bimetal leaf can recoil to normal condition again, and conductive copper sheet 1 and conductive copper sheet 2 reconnect, and circuit returns normally closed state.
This technical scheme structure is simple, critical piece thermistor and bimetal leaf are all very small and exquisite, so this circuit breaker volume is little, be applicable in precise part product, and due to temperature normal after, bimetal leaf can recoil to normal condition, and thus this circuit breaker can be reused, and further enhancing the practicality of this technology.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of this circuit breaker under normal temperature.
Fig. 2 is the schematic diagram that under high temperature, this breaker circuit disconnects.
1. dielectric moldings in figure, 2. conductive copper sheet 1,3. conductive copper sheet 2,4. thermistor, 5. bimetal leaf.
Embodiment
In FIG, it is the schematic diagram under circuit breaker is in normal temperature state, bimetal leaf (5) bends towards the direction of thermistor (4), thermistor (4) is in the spherical hollow place of bimetal leaf (5), the conductive copper sheet 2 (3) being connected to bimetal leaf (5) is pulled to conductive copper sheet 1 (2), conductive copper sheet 1 (2) and conductive copper sheet 2 (3) are in connected state, and closing of circuit runs well.
In fig. 2, it is the schematic diagram under circuit breaker is in the condition of high temperature, bimetal leaf (5) is out of shape towards the opposite direction of thermistor (4), opening is towards conductive copper sheet 2 (3) and conductive copper sheet 2 (3) contact with conductive copper sheet 1 (2) backed down, conductive copper sheet 1 (2) is connected disconnection with the direct of conductive copper sheet 2 (3), normality circuit disconnects, only have a small amount of electric current by thermistor (4) and bimetal leaf (5) transmission, circuit is weak current state.
Claims (3)
1. a circuit breaker, comprise dielectric moldings, conductive copper sheet 1, conductive copper sheet 2, thermistor and bimetal leaf, is characterized in that: one end of conductive copper sheet 1 is provided with thermistor, and one end of conductive copper sheet 2 is provided with bimetal leaf, thermistor is connected with bimetal leaf, and conductive copper sheet 1 is connected with circuit respectively with the other end of conductive copper sheet 2.
2. circuit breaker according to claim 1, is characterized in that: described bimetal leaf is by the different materials synthesis of two kinds of thermal expansion coefficients, and in hemisphere, one side is connected with conductive copper sheet 2, and one side is connected with thermistor.
3. circuit breaker according to claim 1, is characterized in that: under normal temperature, conductive copper sheet 1 is connected with conductive copper sheet 2; Under high temperature, bi-metal plate deformed, conductive copper sheet 1 is connected disconnection with the direct of conductive copper sheet 2, and electric current forms dry circuit via bimetal leaf and thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617718.5U CN204885059U (en) | 2015-08-17 | 2015-08-17 | Breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617718.5U CN204885059U (en) | 2015-08-17 | 2015-08-17 | Breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204885059U true CN204885059U (en) | 2015-12-16 |
Family
ID=54829407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520617718.5U Expired - Fee Related CN204885059U (en) | 2015-08-17 | 2015-08-17 | Breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204885059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992103A (en) * | 2016-01-21 | 2017-07-28 | 瑞侃电子(上海)有限公司 | Thermal circuit beraker |
-
2015
- 2015-08-17 CN CN201520617718.5U patent/CN204885059U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992103A (en) * | 2016-01-21 | 2017-07-28 | 瑞侃电子(上海)有限公司 | Thermal circuit beraker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203367751U (en) | Temperature indicator in switch cabinet | |
| CN204885059U (en) | Breaker | |
| CN103871799B (en) | 100000 level self-healing fuses and semi-self-resetting circuit | |
| CN203553041U (en) | Miniature bimetallic strip type overheating protector | |
| CN109103708B (en) | Automatic fuse with recyclable overheat protection function for electric plug and use method of automatic fuse | |
| CN204271013U (en) | A kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function | |
| CN202084489U (en) | Thermomagnetic plastic-case breaker with overload alarm non-tripping function | |
| CN202268313U (en) | Delayed-alarming and non-tripping molded case circuit breaker used for fire protection | |
| CN206098323U (en) | Thermal protector | |
| CN204516710U (en) | Overcurrent, overload, overheat protector | |
| CN203339061U (en) | Reverse-support temperature protector | |
| CN203503552U (en) | Electromagnetic electrothermal relay | |
| CN203910714U (en) | Load protection device capable of transient quick-tripping in the case of overtemperature and overload | |
| CN204391428U (en) | There is the plug and socket of flameproof protection device | |
| CN102683124A (en) | Overload alarm non-tripping device of thermomagnetic plastic housing circuit breaker | |
| CN204243387U (en) | There is the plug and socket of flameproof protection device | |
| CN207456626U (en) | Switch jack panel is implanted into temperature limit alarm | |
| CN204927181U (en) | Hot protector of sensitive type of resetting current postpones | |
| CN206116310U (en) | Moulded case circuit breaker transmission that heat overload was reported to police and is not threaded off | |
| CN214956621U (en) | Self-locking type temperature controller | |
| CN104064414A (en) | Load protection device for over-temperature, overload and instantaneous kicking | |
| CN105591253A (en) | Plug and socket having fireproof protection apparatus | |
| CN210245434U (en) | Push type alarming non-tripping device | |
| CN203942195U (en) | A kind of high-voltage contact box for metal closed switch cabinet remote visible | |
| CN203910713U (en) | Load overtemperature and overload protection device capable of transient quick-tripping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |