CN207179803U - A kind of warmer overheating protection circuit - Google Patents
A kind of warmer overheating protection circuit Download PDFInfo
- Publication number
- CN207179803U CN207179803U CN201721009167.XU CN201721009167U CN207179803U CN 207179803 U CN207179803 U CN 207179803U CN 201721009167 U CN201721009167 U CN 201721009167U CN 207179803 U CN207179803 U CN 207179803U
- Authority
- CN
- China
- Prior art keywords
- circuit
- thermistor
- heater
- air switch
- warmer
- 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
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- Control Of Resistance Heating (AREA)
Abstract
Utility model devises a kind of warmer overheating protection circuit; including lighting circuit, blowing circuit and heater circuit; it is in parallel between the lighting circuit, blowing circuit and heater circuit; the heater circuit includes calandria, thermistor and air switch; the calandria is in parallel with thermistor; the calandria, thermistor are connected with air switch, and the thermistor is installed on heater, and the thermistor reduces with temperature rise resistance.The utility model is connected by installing thermistor, thermistor on heating body of heater with after heater parallel connection with air switch, and when the temperature that generates heat is too high, air switch disconnects automatically, excludes potential safety hazard.
Description
Technical field
Bathroom heating device technical field is the utility model is related to, particularly a kind of warmer overheating protection circuit.
Background technology
With the development of society, in daily life the conditioner such as air-conditioning, bathroom heating device, household warming should
With more and more extensive, the winter particularly in severe cold, bathroom heating device is even more indispensable electric in family.At present, conventional bathroom
Warmer does not have overheat protective function, when user, which forgets to close warmer or warmer, to go out circuit question and heater overheat occur,
Potential safety hazard can not be excluded in time.
Utility model content
The defects of for above-mentioned prior art and existing technical problem, the utility model devise a kind of warmer overheat
Protection circuit, when heating body of heater overheats, heater circuit is automatically cut off, excludes potential safety hazard.
Technical scheme is used by the utility model solves its technical problem：A kind of warmer overheating protection circuit, bag
Include lighting circuit, blowing circuit and heater circuit, be between the lighting circuit, blowing circuit and heater circuit it is in parallel, it is described
Heater circuit includes calandria, thermistor and air switch, and the calandria is in parallel with thermistor, the calandria,
Thermistor is connected with air switch, and the thermistor is installed on heater, and the thermistor hinders as temperature raises
Value reduces.
The beneficial effects of the utility model are：Contrast prior art, a kind of warmer overtemperature protection electricity of the present utility model
Road, by installing thermistor on heating body of heater, thermistor is connected with air switch with after heater parallel connection, sent out
When hot temperature is too high, air switch disconnects automatically, excludes potential safety hazard.
Brief description of the drawings
Fig. 1 is the block diagram of the utility model.
In figure：1st, lighting circuit, 11, light switch, 2, blowing circuit, 21, blower switch, 3, heater circuit, 31, heating
Body, 32, thermistor, 33, air switch, 4, power switch.
Embodiment
Specific embodiment of the present utility model is elaborated below in conjunction with the accompanying drawings, furthers elucidate the utility model
The advantages of and the outstanding contributions relative to prior art, it is possible to understand that, following embodiments is only preferable to the utility model
The detailed description of embodiment, it should not be construed as any restrictions to technical solutions of the utility model.
As shown in figure 1, the utility model provides a kind of warmer overheating protection circuit, including lighting circuit 1, blowing circuit
2 and heater circuit 3, it is in parallel between the lighting circuit 1, blowing circuit 2 and heater circuit 3, the heater circuit 3 includes adding
Hot body 31, thermistor 32 and air switch 33, the calandria 31 is in parallel with thermistor 32, the calandria 31, heat
Quick resistance 32 is connected with air switch 33, and the thermistor 32 is installed on heater 31, and the thermistor 32 is with temperature
Degree rise resistance reduces.After power switch 4 is connected, open heater circuit 3 and begin to warm up, when the temperature of heater 31 is too high, heat
Because temperature raises, resistance value diminishes quick resistance 32, the electric current increase passed through, the circuit mistake on the air switch 33 of series connection with it
Greatly, cause air switch 33 to disconnect, so as to cause the open circuit of heater circuit 3, stop heating, exclude potential safety hazard.
Claims (1)
- A kind of 1. warmer overheating protection circuit, it is characterised in that：It is described including lighting circuit, blowing circuit and heater circuit It is in parallel between lighting circuit, blowing circuit and heater circuit, the heater circuit includes calandria, thermistor and air Switch, the calandria is in parallel with thermistor, and the calandria, thermistor are connected with air switch, the thermistor It is installed on heater, the thermistor reduces with temperature rise resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721009167.XU CN207179803U (en) | 2017-08-14 | 2017-08-14 | A kind of warmer overheating protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721009167.XU CN207179803U (en) | 2017-08-14 | 2017-08-14 | A kind of warmer overheating protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207179803U true CN207179803U (en) | 2018-04-03 |
Family
ID=61740601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721009167.XU Expired - Fee Related CN207179803U (en) | 2017-08-14 | 2017-08-14 | A kind of warmer overheating protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207179803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880905A (en) * | 2019-11-18 | 2020-03-13 | 中国南方电网有限责任公司超高压输电公司广州局 | Motor thermosensitive control system of high-voltage direct-current valve cooling system |
-
2017
- 2017-08-14 CN CN201721009167.XU patent/CN207179803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880905A (en) * | 2019-11-18 | 2020-03-13 | 中国南方电网有限责任公司超高压输电公司广州局 | Motor thermosensitive control system of high-voltage direct-current valve cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20190814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |