CN203100074U - Protective device for electrical heating of air conditioner - Google Patents
Protective device for electrical heating of air conditioner Download PDFInfo
- Publication number
- CN203100074U CN203100074U CN 201320081655 CN201320081655U CN203100074U CN 203100074 U CN203100074 U CN 203100074U CN 201320081655 CN201320081655 CN 201320081655 CN 201320081655 U CN201320081655 U CN 201320081655U CN 203100074 U CN203100074 U CN 203100074U
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- CN
- China
- Prior art keywords
- electrical heating
- air conditioner
- temperature
- protective device
- air
- 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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- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 230000001681 protective effect Effects 0.000 title claims abstract description 13
- 238000004378 air conditioning Methods 0.000 claims description 33
- 238000005485 electric heating Methods 0.000 claims description 17
- 239000003365 glass fiber Substances 0.000 claims description 4
- 238000013021 overheating Methods 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 description 6
- 230000000977 initiatory effect Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The utility model provides a protective device for electrical heating of an air conditioner. The protective device comprises an evaporator and an electrical heating pipe. A rectangular support is fixedly arranged on a side board of the evaporator. A temperature relay and a thermal fuse are arranged on the rectangular support. The temperature relay is arranged on the upper surface of the evaporator in an attached and combined mode. The temperature relay and the thermal fuse are electrically connected with the electrical heating pipe in sequence through wires. According to the protective device for the electrical heating of the air conditioner, the temperature relay and the thermal fuse are adopted for classification action, secondary overheating protection for the electrical heating of the air conditioner is realized, the possibility that a draught fan in the air conditioner does not operate but the electrical heating pipe still operates and generates heat is effectively eliminated, the situation that the surface temperature of the evaporator is so high that the temperature of surrounding components rises and the surrounding components deform or accumulated heat causes a fire at the time of the electrical heating of the air conditioner is prevented from happening, and the safety of the air conditioner is ensured.
Description
Technical field
The utility model relates to air-conditioning technical field, is specifically related to a kind of air-conditioning electrical heating protective device.
Background technology
Along with the needs of modern technologies development, the purposes of air-conditioning equipment has been proposed requirements at the higher level, not only require refrigeration also to require to heat, also require air-conditioning being lower than under-45 ℃ the low temperature environment in special place and still can normally heat work.
At present, the mode that air-conditioning heats in low temperature environment generally adopts electric heating tube to embed the mode that heats of evaporimeter, and the heat that this kind mode of heating produces must dispel the heat by evaporator surface, is dispersed in the space that needs heating by the blower fan circulation again.Because all there are the possibility of inefficacy in electronic devices and components and blower fan, as when air-conditioning equipment electric heating heats, the air-conditioning inner blower does not turn round; Also might shut down by air-conditioning equipment, cut off the power supply to the A.C. contactor of electric heating tube power supply or the control signal of relay contact, but main contacts discharges inefficacy.When above situation took place, electric heating tube still produced heat in work, causes the surface of evaporimeter to gather very high heat, existed to cause the raise potential safety hazard of distortion or accumulation of heat initiation fire of part temperatures on every side.So electrical heating is installed protective device additional and is prevented overheated and cause damage particularly important to air-conditioning.
The utility model content
The utility model will solve above-mentioned deficiency exactly, and a kind of air-conditioning electrical heating protective device is provided, the device of overheated, the overcurrent safeguard protection of under electronic devices and components and the blower fan failure conditions evaporimeter being carried out when solving existing air-conditioning electric heating and heating.
In order to reach above-mentioned effect, the utility model provides a kind of air-conditioning electrical heating protective device, comprise evaporimeter, electric heating tube, be installed with rectangular support on the side plate of described evaporimeter, described support is provided with temperature relay, and described temperature relay is fitted and is arranged on the upper surface of described evaporimeter; Described temperature relay is electrically connected by lead with described electric heating tube.
For the air-conditioning electrical heating is realized dual secondary safeguard protection, also be provided with thermal cut-off on the described support, described thermal cut-off is serially connected between electric heating tube and the temperature relay by lead.
For fear of the influence of high temperature to lead, described lead is arranged with glass fibre sleeve outward.
Support of the present utility model is fixed on the evaporimeter side plate, and according to the position of electric heating tube in the evaporimeter, adjust its installation site up and down, and then thermal cut-off and temperature relay be fixed on the support, can satisfy air-conditioning and in the Applicable temperature scope, normally heat, can guarantee that again air-conditioning stops electrical heating when the evaporator surface temperature is too high.And make the temperature relay position apart from the distance at evaporimeter edge greater than hot zone not, electric heating tube end, thereby truly reflect the evaporator surface temperature.
The utility model can be experienced the evaporator surface temperature in real time according to temperature relay and thermal cut-off, and with the characteristics that temperature raises, accumulation of heat is understood automatic disconnection, realizes the electrically heated secondary safeguard protection of air-conditioning.Because temperature relay is close on the evaporator surface, exactly the temperature on induction evaporation mode device surface.When the evaporator surface temperature is higher than one-level set point of temperature value, the temperature relay contact meeting tripping of first order protection, thus the operating circuit of disconnection electric heater quits work electric heater, avoids it to continue heating and makes temperature too high.If the temperature relay protection was lost efficacy; the evaporator external heat continues to accumulate when being higher than secondary set point of temperature value; the thermal cut-off of second level protection will fuse; thereby disconnect the operating circuit of electric heater, reach too high distortion of part temperatures rising on every side or the accumulation of heat initiation fire of causing of the device surface temperature that avoids evaporating.
So, the utlity model has following advantage:
1) the utility model has adopted temperature relay and thermal cut-off classification action; realized the electrically heated overheated second class protection of air-conditioning; having solved the air-conditioning inner blower does not effectively turn round; electrothermal tube is still in the possibility of generation heat that works on; the evaporator surface temperature is too high and cause on every side and part temperatures raise distortion or accumulation of heat initiation fire to have guaranteed the security of air-conditioning equipment when preventing the air-conditioning electrical heating.
2) this device can be adjusted its installation site up and down according to the position of electric heating tube in the evaporimeter, can satisfy air-conditioning and normally heat in the Applicable temperature scope, can guarantee that again air-conditioning stops electrical heating when the evaporator surface temperature is too high.
3) the utility model volume is little, in light weight, easy for installation, simple in structure, be easy to make, fault rate is low, safe and reliable.
4) position of thermal cut-off of the present utility model greater than hot zone not, electric heating tube end, can be reflected the evaporator surface temperature apart from the distance at evaporimeter edge really, has guaranteed the normal operation of air-conditioning.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model is installed in the schematic diagram on the evaporimeter;
Among the figure: 1-support, 2-thermal cut-off, 3-lead, 4-temperature relay, 5-evaporimeter, 6-side plate, 7-glass fibre sleeve.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of air-conditioning electrical heating protective device, comprise evaporimeter 5, electric heating tube, be installed with rectangular support 1 on the side plate 6 of described evaporimeter 5, described support 1 is provided with temperature relay 4 and thermal cut-off 2, and described temperature relay 4 is fitted and is arranged on the upper surface of described evaporimeter 5; Temperature relay 4, thermal cut-off 2 are connected in series by lead 3 successively with electric heating tube; For fear of the influence of high temperature to lead, the lead 3 outer glass fibre sleeves 7 that are arranged with.
This device is installed in evaporator surface, when the evaporator surface temperature is higher than one-level set point of temperature value, the meeting tripping of temperature relay contact, thus the operating circuit of disconnection electric heater quits work electric heater, avoids it to continue heating and makes temperature too high.If the temperature relay protection was lost efficacy; the evaporator external heat continues to accumulate when being higher than secondary set point of temperature value; this moment, thermal cut-off will fuse; thereby disconnect the operating circuit of electric heater, reach too high distortion of part temperatures rising on every side or the accumulation of heat initiation fire of causing of the device surface temperature that avoids evaporating.Realized the electrically heated overheated second class protection of air-conditioning; solved effectively when the air-conditioning inner blower does not turn round or air-conditioning shuts down; electrothermal tube is still in the possibility of generation heat that works on; the evaporator surface temperature is too high and cause on every side and part temperatures raise distortion or accumulation of heat initiation fire to have guaranteed the security of air-conditioning equipment when preventing the air-conditioning electrical heating.
Above embodiment is not limited only to protection domain of the present utility model, all make amendment based on basic thought of the present utility model or change all belong to protection domain of the present utility model.
Claims (3)
1. air-conditioning electrical heating protective device, comprise evaporimeter and electric heating tube, it is characterized in that: be installed with rectangular support on the side plate of described evaporimeter, described support is provided with temperature relay, and described temperature relay is fitted and is arranged on the upper surface of described evaporimeter; Described temperature relay is electrically connected by lead with described electric heating tube.
2. a kind of air-conditioning electrical heating protective device according to claim 1, it is characterized in that: also be provided with thermal cut-off on the described support, described thermal cut-off is serially connected between electric heating tube and the temperature relay by lead.
3. a kind of air-conditioning electrical heating protective device according to claim 1 and 2, it is characterized in that: described lead is arranged with glass fibre sleeve outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320081655 CN203100074U (en) | 2013-02-22 | 2013-02-22 | Protective device for electrical heating of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320081655 CN203100074U (en) | 2013-02-22 | 2013-02-22 | Protective device for electrical heating of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203100074U true CN203100074U (en) | 2013-07-31 |
Family
ID=48851472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320081655 Expired - Fee Related CN203100074U (en) | 2013-02-22 | 2013-02-22 | Protective device for electrical heating of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203100074U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729156A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Heat exchanger assembly and air conditioner |
| CN106500285A (en) * | 2015-09-08 | 2017-03-15 | 周峙东 | A kind of old-fashioned air conditioner electric concurrent heating system, control method and its air-conditioner |
| CN109780637A (en) * | 2019-03-13 | 2019-05-21 | 宁波奥克斯电气股份有限公司 | A heating assembly, electric heating device and ceiling machine |
| CN113137695A (en) * | 2021-04-14 | 2021-07-20 | 宁波奥克斯电气股份有限公司 | Control method and device for reliable operation of electric heating of air conditioner and air conditioner |
| CN113654109A (en) * | 2020-05-12 | 2021-11-16 | 青岛海尔空调器有限总公司 | Air conditioner, control method and control device thereof |
-
2013
- 2013-02-22 CN CN 201320081655 patent/CN203100074U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729156A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Heat exchanger assembly and air conditioner |
| CN106500285A (en) * | 2015-09-08 | 2017-03-15 | 周峙东 | A kind of old-fashioned air conditioner electric concurrent heating system, control method and its air-conditioner |
| CN109780637A (en) * | 2019-03-13 | 2019-05-21 | 宁波奥克斯电气股份有限公司 | A heating assembly, electric heating device and ceiling machine |
| CN113654109A (en) * | 2020-05-12 | 2021-11-16 | 青岛海尔空调器有限总公司 | Air conditioner, control method and control device thereof |
| CN113137695A (en) * | 2021-04-14 | 2021-07-20 | 宁波奥克斯电气股份有限公司 | Control method and device for reliable operation of electric heating of air conditioner and air conditioner |
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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: 20130731 Termination date: 20210222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |