CN214469483U - Defrosting device for outdoor unit of air conditioner - Google Patents
Defrosting device for outdoor unit of air conditioner Download PDFInfo
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- CN214469483U CN214469483U CN202023320016.0U CN202023320016U CN214469483U CN 214469483 U CN214469483 U CN 214469483U CN 202023320016 U CN202023320016 U CN 202023320016U CN 214469483 U CN214469483 U CN 214469483U
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- outdoor unit
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- heat exchanger
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Abstract
The utility model discloses an outer quick-witted defroster of air-conditioner, including locating the electric heat defrosting subassembly on the off-premises station heat exchanger, its characterized in that: the electric heating defrosting assembly at least comprises a first heating wire, a second heating wire and a third heating wire, the first heating wire, the second heating wire and the third heating wire are sequentially and fixedly arranged at the middle lower part of the outdoor unit heat exchanger from top to bottom, and the third heating wire is arranged close to an output pipe of the outdoor unit heat exchanger; first heating wire, second heating wire and third heating wire three independent work are in order to select to open/close first heating wire, second heating wire and third heating wire as required under the defrosting mode, realize carrying out accurate defrosting to the off-premises station heat exchanger, have shortened the air conditioner and have leaded to the intermittent time of indoor heating because of the defrosting when heating in winter, promote actual comfort level and experience.
Description
Technical Field
The utility model belongs to the technical field of the technique of air conditioner defrosting and specifically relates to indicate an outer quick-witted defroster of air-conditioner.
Background
When the air conditioner is used in winter, the outdoor unit is easy to frost, especially when the outdoor environment temperature is low. After the frost layer on the outdoor unit heat exchanger is full, the heating capacity of the air conditioner is reduced, the long defrosting period easily causes the indoor heating to be suddenly and obviously, and the heating experience is poor. When most of existing outdoor units of air conditioners are defrosted, the electric heating wires are only mechanically controlled to be opened and closed, the defrosting entry point and the defrosting exit point cannot be accurately judged, and the situations that defrosting time is long and defrosting of the middle lower part of a heat exchanger of the outdoor unit of the air conditioner is not clean are easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a defrosting device of outer machine of air-conditioner that the defrosting is clean, avoid the defrosting time to be lengthy.
In order to achieve the above object, the utility model provides an outdoor unit defrosting device of an air conditioner, which comprises an electric heating defrosting assembly arranged on an outdoor unit heat exchanger, wherein the electric heating defrosting assembly at least comprises a first heating wire, a second heating wire and a third heating wire, the first heating wire, the second heating wire and the third heating wire are sequentially and fixedly arranged at the middle lower part of the outdoor unit heat exchanger from top to bottom, and the third heating wire is arranged close to an output pipe of the outdoor unit heat exchanger; the first, second, and third heating wires independently work to selectively turn on/off the first, second, and third heating wires as needed in a defrosting mode.
Further, the heating device further comprises an output temperature detection module arranged at the outlet end of an output pipe of the outdoor unit heat exchanger and a chassis temperature detection module arranged on a chassis water tank of the outdoor unit, wherein in the defrosting mode, the first heating wire, the second heating wire and the third heating wire are selectively turned on/off correspondingly based on the refrigerant output temperature TC monitored by the output temperature detection module and/or the chassis water tank temperature TQ monitored by the chassis temperature detection module.
Further, the first heating wire, the second heating wire and the third heating wire are fixedly buckled on the outdoor unit heat exchanger through at least one fixing buckle.
Further, the first heating wire, the second heating wire and the third heating wire are all in a U-shaped crank shaft shape.
Further, the first heating wire, the second heating wire and the third heating wire are installed at the middle-lower position of the outdoor unit heat exchanger at equal intervals from top to bottom.
Further, the output temperature detection module adopts a temperature sensor.
Further, the chassis temperature detection module adopts a temperature sensor.
Further, the chassis temperature detection module is located at an upstream position of the outdoor unit chassis water tank.
The utility model adopts the above technical scheme, its beneficial effect lies in: the first heating wire, the second heating wire and the third heating wire are selected to be turned on/off based on the refrigerant output temperature TC monitored by the output temperature detection module and/or the chassis water tank temperature TQ monitored by the chassis temperature detection module correspondingly, so that the tangent point and the exit point of heating and defrosting of the first heating wire, the second heating wire and the third heating wire are effectively determined and established, the position of the outdoor unit requiring defrosting is precisely defrosted, the intermittent time of indoor heating caused by defrosting when the air conditioner heats in winter is shortened, and the actual comfort level and experience are improved.
Drawings
FIG. 1 is a schematic diagram of the connection configuration of the system.
The device comprises a base plate, a first heating wire, a second heating wire, a third heating wire, a first output temperature detection module, a second output temperature detection module, a third output temperature detection module, a fourth output temperature detection module, a fifth output temperature detection module, a sixth output buckle, a sixth output temperature detection module, a sixth output tube, a sixth output heat exchanger, a sixth output tube, a sixth output heat exchange, a sixth output tube, a fifth output heat exchange, a sixth output tube, a sixth.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1, in the present embodiment, the defrosting apparatus for an outdoor unit of an air conditioner includes an electric heating defrosting assembly disposed on a heat exchanger 100 of the outdoor unit, an output temperature detection module 4, and a chassis temperature detection module 5, wherein the electric heating defrosting assembly at least includes a first heating wire 1, a second heating wire 2, and a third heating wire 3, and the first heating wire 1, the second heating wire 2, and the third heating wire 3 are sequentially and fixedly mounted at a middle-lower position of the heat exchanger 100 of the outdoor unit from top to bottom; since the output pipe 300 of the outdoor heat exchanger 100 is located at the lowermost position, the third heating wire 3 is disposed adjacent to the output pipe 300 of the outdoor heat exchanger 100, so that the lowermost position of the outdoor heat exchanger 100 is heated and defrosted when the third heating wire 3 is activated. In addition, the first heating wire 1, the second heating wire 2, and the third heating wire 3 are preferably installed on the outdoor unit heat exchanger 100 at equal intervals, which is more convenient for defrosting operation.
In this embodiment, the output temperature detecting module 4 is disposed at an outlet end of the output pipe 300 of the outdoor heat exchanger 100, and is configured to monitor and obtain the refrigerant output temperature TC. The chassis temperature detection module 5 is disposed on the outdoor unit chassis sink 200, and is configured to monitor and obtain a temperature TQ of the chassis sink 200.
Further, in order to more accurately obtain the temperature TQ of the chassis sink 200, the chassis temperature detecting module 5 of the present embodiment is located at an upstream position of the outdoor unit chassis sink 200.
In the present embodiment, the first heating wire 1, the second heating wire 2, and the third heating wire 3 are independently operated to selectively turn on/off the first heating wire 1, the second heating wire 2, and the third heating wire 3 as needed in the defrosting mode, and specifically, in the defrosting mode, the first heating wire 1, the second heating wire 2, and the third heating wire 3 are selectively turned on/off corresponding to the refrigerant output temperature TC monitored by the output temperature detection module 4 and/or the chassis water tank 200 temperature TQ monitored by the chassis temperature detection module 5.
To facilitate understanding of the above-described defrosting device, the following is further explained with reference to specific operating principles.
When the air conditioner enters a defrosting mode, firstly, the first heating wire 1 is started to heat and remove a frost layer in the middle of the outdoor unit heat exchanger 100, the frost layer at the moment is melted into a liquid state and drops downwards into the chassis water tank 200, and a small amount of heat is emitted during the dropping process, when a preset first time period T1 is reached (preferably 20 s), the current refrigerant output temperature TC is obtained through monitoring of the output temperature detection module 4, and comparison and judgment are carried out according to the refrigerant output temperature TC and a preset first temperature value T1 (preferably 5 ℃): 1) when the refrigerant output temperature TC is greater than or equal to the first temperature value T1, which means that there is no frost layer or few frost layers on the middle surface of the outdoor unit heat exchanger 100 and defrosting is not required, the first heating wire 1 is turned off and the feedback value of the temperature module is continuously monitored; 2) when the refrigerant output temperature TC is less than the first temperature T1, which means that the frost layer still exists at the lower middle portion of the outdoor unit heat exchanger 100, a further defrosting operation is required, and thus the second heating wire 2 needs to be additionally turned on.
Further, when the first heating wire 1 and the second heating wire 2 are turned on to heat and remove the frost layer at the middle lower part of the outdoor unit heat exchanger 100, and a preset second time period T2 is reached (preferably 20 s), the output temperature detection module 4 monitors and obtains a current refrigerant output temperature TC and the chassis temperature detection module 5 monitors and obtains a chassis water tank 200 temperature TQ, and a comparison judgment is performed according to the refrigerant output temperature TC and a preset second temperature value T2 (preferably 10 ℃) and a comparison judgment is performed according to the chassis water tank 200 temperature TQ and a preset third temperature value T3 (preferably 1 ℃): 1) when the refrigerant output temperature TC is greater than or equal to the second temperature value T2, which means that no or few frost layers are formed on the surface of the middle lower portion of the outdoor unit heat exchanger 100 and defrosting is not required, the first heating wire 1 and the second heating wire 2 are turned off and the feedback value of the temperature module is continuously monitored; 2) when the refrigerant output temperature TC is less than the second temperature value T2 and the refrigerant output temperature TC is greater than or equal to the third temperature value T3, which means that a part of frost layer still exists on the surface of the outdoor unit heat exchanger 100, the first heating wire 1 and the second heating wire 2 are started to continue heating, and monitoring and judging are performed again after the preset second time period T2 is reached; 3) when the refrigerant output temperature TC is less than the second temperature value T2 and the refrigerant output temperature TC is less than the third temperature value T3, it means that a frost layer still exists on the lower surface of the outdoor heat exchanger 100, and the third heating wire 3 needs to be additionally turned on.
Further, when the first heating wire 1, the second heating wire 2, and the third heating wire 3 are turned on to heat and remove the frost layer on the middle lower portion of the outdoor unit heat exchanger 100, the first heating wire 1, the second heating wire 2, and the third heating wire 3 continuously operate at this time, and the first heating wire 1, the second heating wire 2, and the third heating wire 3 are turned off until the air conditioner exits the defrosting mode.
Based on the working principle, the purposes of completely defrosting and avoiding long defrosting time are achieved by detecting and judging the output temperature detection module 4 and the chassis temperature detection module 5 and controlling independent on/off of a plurality of groups of heating wires.
Further, the first heating wire 1, the second heating wire 2, and the third heating wire 3 of the present embodiment are all fixedly fastened to the outdoor unit heat exchanger 100 by at least one fixing fastener 6, that is, the first heating wire 1, the second heating wire 2, and the third heating wire 3 are fixedly fastened to the outdoor unit heat exchanger 100 by the fixing fastener 6 (substantially, the first heating wire 1, the second heating wire 2, and the third heating wire 3 are fixedly fastened to the heat exchange tube by the fixing fastener 6), so that the assembling efficiency is effectively improved, and the heat exchange tube is not easy to fall off.
Further, the output temperature detection module 4 adopts a temperature sensor. The chassis temperature detection module 5 adopts a temperature sensor. The working principle and structure of the temperature sensor are common knowledge of conventional elements in the field, and are not described in detail herein.
Further, the first heating wire 1, the second heating wire 2 and the third heating wire 3 are all in a U-shaped crank shaft shape, so that the heating working surface is effectively enlarged, and defrosting is more convenient.
The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make many changes, modifications, and equivalents of the embodiments of the invention without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.
Claims (8)
1. The utility model provides an outdoor machine defroster of air-conditioner, is including locating the electric heat defrosting subassembly on outdoor machine heat exchanger (100), its characterized in that: the electric heating defrosting assembly at least comprises a first heating wire (1), a second heating wire (2) and a third heating wire (3), wherein the first heating wire (1), the second heating wire (2) and the third heating wire (3) are sequentially and fixedly arranged at the middle lower part of the outdoor unit heat exchanger (100) from top to bottom, and the third heating wire (3) is arranged close to an output pipe (300) of the outdoor unit heat exchanger (100); the first heating wire (1), the second heating wire (2) and the third heating wire (3) work independently to selectively turn on/off the first heating wire (1), the second heating wire (2) and the third heating wire (3) as required in a defrosting mode.
2. The defrosting apparatus of an outdoor unit of an air conditioner according to claim 1, wherein: still including locating output temperature detection module (4) of output tube (300) exit end of off-premises station heat exchanger (100) and locating chassis temperature detection module (5) on off-premises station chassis basin (200), wherein, under the defrosting mode, based on refrigerant output temperature TC that output temperature detection module (4) monitored and/or chassis basin (200) temperature TQ that chassis temperature detection module (5) monitored corresponding selection of open/close first heating wire (1), second heating wire (2) and third heating wire (3).
3. The defrosting apparatus of an outdoor unit of an air conditioner according to claim 1, wherein: the first heating wire (1), the second heating wire (2) and the third heating wire (3) are fixedly buckled on the outdoor unit heat exchanger (100) through at least one fixing buckle (6).
4. The defrosting apparatus of an outdoor unit of an air conditioner according to claim 1, wherein: the first heating wire (1), the second heating wire (2) and the third heating wire (3) are all in a U-shaped crank shaft shape.
5. The defrosting apparatus of an outdoor unit of an air conditioner according to claim 1, wherein: the first heating wire (1), the second heating wire (2) and the third heating wire (3) are arranged at the middle lower part of the outdoor unit heat exchanger (100) at equal intervals from top to bottom.
6. The defrosting apparatus of an outdoor unit of an air conditioner according to claim 2, wherein: the output temperature detection module (4) adopts a temperature sensor.
7. The defrosting apparatus of an outdoor unit of an air conditioner according to claim 2, wherein: the chassis temperature detection module (5) adopts a temperature sensor.
8. The defrosting apparatus of an outdoor unit of an air conditioner according to claim 2, wherein: the chassis temperature detection module (5) is positioned at the upstream position of the outdoor unit chassis water tank (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023320016.0U CN214469483U (en) | 2020-12-31 | 2020-12-31 | Defrosting device for outdoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023320016.0U CN214469483U (en) | 2020-12-31 | 2020-12-31 | Defrosting device for outdoor unit of air conditioner |
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| Publication Number | Publication Date |
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| CN214469483U true CN214469483U (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023320016.0U Active CN214469483U (en) | 2020-12-31 | 2020-12-31 | Defrosting device for outdoor unit of air conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383219A (en) * | 2021-12-27 | 2022-04-22 | 青岛海尔空调器有限总公司 | Method and device for defrosting of air conditioner and air conditioner |
| CN114636223A (en) * | 2022-03-21 | 2022-06-17 | 青岛海尔空调器有限总公司 | Defrosting and heating control method, system, equipment and storage medium |
| WO2023227730A1 (en) | 2022-05-27 | 2023-11-30 | Güntner Gmbh & Co. Kg | Device having a heat exchanger and method for operating a heat exchanger of a device |
-
2020
- 2020-12-31 CN CN202023320016.0U patent/CN214469483U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114383219A (en) * | 2021-12-27 | 2022-04-22 | 青岛海尔空调器有限总公司 | Method and device for defrosting of air conditioner and air conditioner |
| CN114383219B (en) * | 2021-12-27 | 2024-03-19 | 青岛海尔空调器有限总公司 | Method and device for defrosting air conditioner and air conditioner |
| CN114636223A (en) * | 2022-03-21 | 2022-06-17 | 青岛海尔空调器有限总公司 | Defrosting and heating control method, system, equipment and storage medium |
| WO2023227730A1 (en) | 2022-05-27 | 2023-11-30 | Güntner Gmbh & Co. Kg | Device having a heat exchanger and method for operating a heat exchanger of a device |
| DE102022113409A1 (en) | 2022-05-27 | 2023-11-30 | Güntner Gmbh & Co. Kg | Device with a heat exchanger and method for operating a heat exchanger of a device |
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