CN107990482B - Explosion-proof control method and air conditioner - Google Patents
Explosion-proof control method and air conditioner Download PDFInfo
- Publication number
- CN107990482B CN107990482B CN201711218177.9A CN201711218177A CN107990482B CN 107990482 B CN107990482 B CN 107990482B CN 201711218177 A CN201711218177 A CN 201711218177A CN 107990482 B CN107990482 B CN 107990482B
- Authority
- CN
- China
- Prior art keywords
- liquid pipe
- air conditioner
- temperature
- valve
- explosion
- 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.)
- Active
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an explosion-proof control method and an air conditioner. The explosion-proof control method provided by the invention controls the throttle assembly to be opened to a first preset opening degree according to the temperature of the liquid pipe of the air conditioner liquid pipe, so that the refrigerant in the air conditioner liquid pipe is unloaded through the condenser, and the explosion-proof control of the air conditioner liquid pipe is realized. According to the invention, explosion prevention is realized through a control mode, any valve piece and pipeline structure similar to a safety valve is not required to be added, the design difficulty and cost are not influenced, and the manufacturing cost of the air conditioner is reduced when the service life of the air conditioner is prolonged.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an explosion-proof control method and an air conditioner.
Background
The existing air conditioner with cooling and heating functions, especially a multi-split air conditioner, has an outdoor unit which is provided with a throttling component in front of a liquid pipe valve in order to realize the flow path switching of the cooling and heating modes and prevent the refrigerant from flowing backwards when the multi-split air conditioner is connected in parallel. The configuration of the throttling component provides necessary conditions for the unit to realize free switching of different modes of operation, and certain hidden dangers are caused: when the liquid pipe valve is closed and the throttling assembly is also closed, the middle part is sealed with a variable amount of refrigerant, when the environmental temperature is greatly changed or repeatedly changed, the sealed refrigerant amount (volume) is larger and larger, the pressure is higher and higher, and the risk of pipe explosion exists.
In order to solve the problem, some manufacturers add an unloading valve (safety valve) at the position, and when the pressure is too high, the unloading valve directly releases the pressure to other positions. The scheme can partially solve the hidden danger, but cannot solve the hidden danger of pipe explosion caused by volume expansion of the sealing section along with the annular temperature waveguide due to the full liquid refrigerant, and increases the structural design difficulty and the manufacturing cost.
Disclosure of Invention
In view of this, the present invention is directed to an anti-explosion control method to improve the service life of an air conditioner and reduce the manufacturing cost of the air conditioner.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an explosion-proof control method, comprising:
the liquid pipe temperature according to air conditioner liquid pipe controls the throttling component to be opened to a first preset opening degree, so that the refrigerant in the air conditioner liquid pipe is unloaded through the condenser, wherein the air conditioner liquid pipe is connected with the condenser through the throttling component.
Further, the step of controlling the throttling assembly to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe comprises:
judging whether a liquid pipe valve is closed or not according to the temperature of the liquid pipe;
when the liquid pipe valve is closed, the throttling assembly is controlled to be opened to the first preset opening degree.
Further, the explosion-proof control method further comprises the following steps:
detecting the liquid pipe temperature of the air conditioner liquid pipe;
the step of judging whether the liquid pipe valve is closed according to the liquid pipe temperature comprises the following steps:
and comparing the liquid pipe temperature with the ambient temperature, and judging that the liquid pipe valve is closed when the liquid pipe temperature is equal to the ambient temperature.
Further, before the step of detecting the liquid pipe temperature of the air conditioner liquid pipe, the step of judging whether a liquid pipe valve is closed according to the liquid pipe temperature further includes: and controlling the throttle assembly to be opened to a second preset opening degree and maintaining the first preset time.
Further, the step of controlling the throttling assembly to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe further comprises: and after the air conditioner is continuously stopped for a second preset time, controlling the throttling assembly to reach a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe.
Compared with the prior art, the explosion-proof control method has the following advantages:
the explosion-proof control method provided by the invention controls the throttle assembly to be opened to a first preset opening degree according to the temperature of the liquid pipe of the air conditioner liquid pipe, so that the refrigerant in the air conditioner liquid pipe is unloaded through the condenser, and the explosion-proof control of the air conditioner liquid pipe is realized. According to the invention, explosion prevention is realized through a control mode, any valve piece and pipeline structure similar to a safety valve is not required to be added, the design difficulty and cost are not influenced, and the manufacturing cost of the air conditioner is reduced when the service life of the air conditioner is prolonged.
Another objective of the present invention is to provide an air conditioner, so as to prolong the service life of the air conditioner and reduce the manufacturing cost of the air conditioner.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an air conditioner comprises a control unit, a throttling component, a condenser and an air conditioner liquid pipe, wherein the air conditioner liquid pipe is connected with the condenser through the throttling component;
the control unit is connected with the throttling assembly and used for controlling the throttling assembly to reach a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe, so that the refrigerant in the air conditioner liquid pipe passes through the condenser for unloading, and the air conditioner liquid pipe is explosion-proof.
Furthermore, the air conditioner also comprises a liquid pipe valve, and the liquid pipe valve is connected with one end, far away from the throttling component, of the air conditioner liquid pipe;
the control unit is connected with the liquid pipe valve and judges whether the liquid pipe valve is closed or not according to the temperature of the liquid pipe;
the control unit is further used for controlling the throttle component to the first preset opening degree when the liquid pipe valve is closed.
Further, the air conditioner also comprises a temperature sensor,
the temperature sensor is used for detecting the liquid pipe temperature of the air conditioner liquid pipe;
the control unit is connected with the temperature sensor and used for comparing the liquid pipe temperature with the ambient temperature, and when the liquid pipe temperature is equal to the ambient temperature, the liquid pipe valve is judged to be closed.
Further, the control unit is further configured to control the throttling assembly to open to a second preset opening degree and maintain for a first preset time.
Furthermore, the control unit is further configured to control the throttling assembly to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe after the air conditioner is continuously stopped for a second preset time.
Compared with the prior art, the air conditioner and the explosion-proof control method have the same advantages, and are not described again.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a block diagram of an air conditioner according to a first embodiment of the present invention;
fig. 2 is a block diagram of an air conditioner according to a first embodiment of the present invention;
fig. 3 is a flowchart of an explosion-proof control method according to a second embodiment of the present invention;
fig. 4 is a flowchart illustrating the sub-steps of step S1 of the explosion-proof control method according to the second embodiment of the present invention;
fig. 5 is a flowchart illustrating the sub-step of step S3 of the explosion-proof control method according to the second embodiment of the present invention; .
Description of reference numerals: 1-air conditioning; 2-a control unit; 3-a throttling component; 6-a one-way valve; 7-a throttle valve; 4-a condenser; 5-air conditioner liquid pipe; 8-liquid line valve; 9-temperature sensor.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
Referring to fig. 1 and fig. 2, the present embodiment provides an air conditioner 1, and the air conditioner 1 provided in the present embodiment can improve the service life and reduce the manufacturing cost.
In the present embodiment, the air conditioner 1 includes a control unit 2, a throttling assembly 3, a condenser 4 and an air conditioner liquid pipe 5, wherein the air conditioner liquid pipe 5 is connected with the condenser 4 through the throttling assembly 3;
the control unit 2 is connected with the throttling component 3 and is used for controlling the throttling component 3 to be opened to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe 5, so that the refrigerant in the air conditioner liquid pipe 5 is unloaded through the condenser 4.
In this embodiment, the refrigerant in the air conditioner liquid pipe 5 will cause the volume of the refrigerant to expand as the temperature of the liquid pipe changes. In the present embodiment, the control unit 2 controls the throttling assembly 3 according to the liquid pipe temperature.
In the present embodiment, the throttling assembly 3 includes a check valve 6 and a throttle valve 7, and the check valve 6 is connected in parallel with the throttle valve 7.
The control unit 2 is used for controlling the throttle valve 7 to be opened to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe 5.
In the present embodiment, the throttle valve 7 is an expansion valve.
In the present embodiment, the throttle valve 7 is an expansion valve, but the present invention is not limited thereto, and in another embodiment of the present invention, the throttle valve 7 may be an electromagnetic valve.
In this embodiment, the first predetermined opening degree refers to the opening size of the expansion valve.
In this embodiment, the control unit 2 is further configured to determine whether the air conditioner 1 is continuously stopped for a second preset time.
In this embodiment, the control unit 2 is further configured to control the throttling assembly 3 to be opened to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe 5 after the air conditioner 1 is continuously stopped for a second preset time, so that the refrigerant in the air conditioner liquid pipe 5 is unloaded through the condenser 4 to achieve explosion prevention on the air conditioner liquid pipe 5.
In the present embodiment, the explosion-proof control of the air conditioner liquid pipe 5 is performed when the air conditioner 1 is in the stopped state, and the explosion-proof of the air conditioner liquid pipe 5 is not required when the air conditioner 1 is in the operating state.
In this embodiment, the air conditioner 1 further includes a liquid pipe valve 8, and the liquid pipe valve 8 is connected to an end of the air conditioner liquid pipe 5 far away from the throttling assembly 3;
the control unit 2 is connected with the liquid pipe valve 8, and judges whether the liquid pipe valve 8 is closed or not according to the temperature of the liquid pipe;
the control unit 2 is further configured to control the throttle assembly 3 to open to a first preset opening degree when the liquid pipe valve 8 is closed.
In this embodiment, judge earlier whether liquid pipe valve 8 closes, when liquid pipe valve 8 opens, air conditioner liquid pipe 5 need not be explosion-proof, and when liquid pipe valve 8 closed, air conditioner liquid pipe 5 needs explosion-proof. That is, before the air conditioner liquid pipe 5 is explosion-proof, it is necessary to determine whether the liquid pipe valve 8 is closed.
In the present embodiment, when the air conditioner 1 continuously stops for the second preset time and the liquid pipe valve 8 is in the closed state, the throttling assembly 3 is controlled to open to the first preset opening degree.
In the present embodiment, the air conditioner 1 further includes a temperature sensor 9, the temperature sensor 9 is used for detecting the liquid pipe temperature of the air conditioner liquid pipe 5;
the control unit 2 is connected with a temperature sensor 9 and used for comparing the temperature of the liquid pipe with the ambient temperature, and when the temperature of the liquid pipe is equal to the ambient temperature, the liquid pipe valve 8 is judged to be closed.
It should be noted that the liquid pipe temperature is considered to be equal to the ambient temperature when the temperature deviation of the liquid pipe temperature from the ambient temperature is ± 3 ℃ and there is no significant change (change is less than 1 ℃/min).
In this embodiment, the control unit 2 is further configured to control the throttling assembly 3 to open to a second preset opening degree and maintain the second preset opening degree for a first preset time.
In the present embodiment, the control unit 2 is further configured to control the throttle valve 7 to be opened to a second preset opening degree for a first preset time.
In this embodiment, the first preset opening degree is equal to the second preset opening degree.
In another embodiment of the present invention, the first preset opening degree may not be equal to the second preset opening degree, the first preset opening degree may be greater than the second preset opening degree, or the first preset opening degree may be smaller than the second preset opening degree. The equivalent solutions to the present embodiment can achieve the effects of the present embodiment, and are all within the protection scope of the present invention.
In this embodiment, when detecting whether the liquid pipe valve 8 is closed, after the throttle valve 7 is opened to the second predetermined opening degree and maintained for the first predetermined time, the temperature sensor 9 detects the liquid pipe temperature of the air conditioner liquid pipe 5, and when the liquid pipe temperature is equal to the ambient temperature, the liquid pipe valve 8 is determined to be closed.
The working principle of the air conditioner 1 provided by the embodiment is as follows: in this embodiment, after the air conditioner 1 is continuously stopped for the second preset time, whether the liquid pipe valve 8 is closed is detected. When detecting whether liquid pipe valve 8 closes, open throttle valve 7 earlier and maintain first preset time after the second predetermines the aperture, temperature sensor 9 detects the liquid pipe temperature of air conditioner liquid pipe 5, and when liquid pipe temperature equals ambient temperature, it is closed to judge liquid pipe valve 8.
When the tube valve 8 is in the closed state, the air conditioner tube 5 needs to be explosion proof. When the liquid pipe valve 8 is in a closed state, the control unit 2 controls the throttle valve 7 to be opened to a first preset opening degree, so that the refrigerant in the air conditioner liquid pipe 5 is unloaded to the condenser 4 until the liquid pipe temperature is approximately equal to the ambient temperature.
In summary, in the air conditioner 1 provided in this embodiment, when the air conditioner 1 is connected to the shutdown state for the first preset time, the temperature sensor 9 detects the liquid pipe temperature of the air conditioner liquid pipe 5 to determine whether the liquid pipe valve 8 is closed, and when the liquid pipe valve 8 is closed, the control unit 2 controls the throttle valve 7 to open to the first preset opening degree, so that the refrigerant in the air conditioner liquid pipe 5 is unloaded to the condenser 4. In this embodiment, the state of the liquid pipe valve 8 and the connecting surface of the air conditioner 1 is judged in real time by 5, necessary measures are taken to solve the problem of refrigerant sealing, the refrigerant cannot flow backwards, and the reliability of the unit is improved by switching the cold/hot modes of the unit is not influenced:
in this embodiment, realize explosion-proof through control mode, need not to increase any valve member and the pipeline structure of similar relief valve, do not influence and increase the design degree of difficulty and cost, when improving air conditioner 1 life, reduced air conditioner 1's manufacturing cost. Example two
The embodiment provides an explosion-proof control method, which can prolong the service life of the air conditioner 1 and reduce the manufacturing cost of the air conditioner 1. The explosion-proof control method provided in this embodiment will be specifically described with reference to the air conditioner 1 provided in the first embodiment.
For the sake of brevity, reference may be made to embodiment one where nothing is mentioned in this embodiment.
The method comprises the following specific steps:
referring to fig. 3, in step S1, the throttle assembly 3 is controlled to be opened to a first predetermined opening degree according to the tube temperature of the air conditioner liquid tube 5, so that the refrigerant in the air conditioner liquid tube 5 is unloaded through the condenser 4. Wherein the step S1 may include the steps S2, S3 and S4.
In the present embodiment, the control unit 2 controls the throttle assembly 3 to be opened to a first preset opening degree according to the tube temperature of the air conditioner liquid tube 5, so that the refrigerant in the air conditioner liquid tube 5 is unloaded through the condenser 4.
In the present embodiment, the control unit 2 controls the throttle valve 7 to be opened to a first preset opening degree according to the tube temperature of the air conditioner liquid tube 5.
Referring to fig. 4, in step S2, it is determined whether the air conditioner 1 is continuously stopped for a second preset time.
In the present embodiment, the control unit 2 determines whether the air conditioner 1 is connected to stop for a second preset time.
After the air conditioner 1 is continuously stopped for a second preset time, the throttling assembly 3 is controlled to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe 5.
In the present embodiment, the control unit 2 is configured to control the throttle valve 7 to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe 5 after the air conditioner 1 is continuously stopped for a second preset time.
Step S3, whether the liquid pipe valve 8 is closed. Wherein the step S3 may include step S5, step S6, step S7 and step S8.
Referring to fig. 5, in step S5, the throttle assembly 3 is controlled to open to the second predetermined opening degree and maintain the first predetermined time.
In this embodiment, the control unit 2 is further configured to control the throttling assembly 3 to open to a second preset opening degree and maintain the second preset opening degree for a first preset time.
In the present embodiment, the control unit 2 is further configured to control the throttle valve 7 to be opened to a second preset opening degree for a first preset time.
In the present embodiment, after the air conditioner 1 is continuously stopped for the second preset time,
in step S6, the tube temperature of the air conditioner liquid tube 5 is detected.
In the present embodiment, the temperature sensor 9 is used to detect the tube temperature of the air conditioner liquid tube 5.
Step S7, the tube temperature is compared to the ambient temperature.
In this embodiment, the control unit 2 compares the tube temperature with the ambient temperature.
In step S8, it is determined whether the liquid pipe valve 8 is closed according to the liquid pipe temperature.
In this embodiment, the control unit 2 determines whether the liquid pipe valve 8 is closed according to the liquid pipe temperature.
In this embodiment, the liquid pipe valve 8 is judged to be closed when the liquid pipe temperature is equal to the ambient temperature.
Referring to fig. 4, in step S4, when the liquid pipe valve 8 is closed, the throttle element 3 is controlled to open to a first predetermined opening degree.
In this embodiment, the control unit 2 is configured to control the throttling assembly 3 to a first preset opening degree when the liquid pipe valve 8 is closed.
In this embodiment, the control unit 2 is adapted to control the throttle valve 7 to a first preset opening when the liquid line valve 8 is closed.
In this embodiment, the liquid pipe temperature is compared with the ambient temperature, and when the liquid pipe temperature is equal to the ambient temperature, the liquid pipe valve 8 is determined to be closed.
In this embodiment, the control unit 2 is configured to compare the liquid pipe temperature with the ambient temperature, and determine that the liquid pipe valve 8 is closed when the liquid pipe temperature is equal to the ambient temperature.
The working principle of the explosion-proof control method provided by the embodiment is as follows: in this embodiment, after the air conditioner 1 is continuously stopped for the second preset time, whether the liquid pipe valve 8 is closed is detected. When detecting whether liquid pipe valve 8 closes, open throttle valve 7 earlier and maintain first preset time after the second predetermines the aperture, temperature sensor 9 detects the liquid pipe temperature of air conditioner liquid pipe 5, and when liquid pipe temperature equals ambient temperature, it is closed to judge liquid pipe valve 8. When the tube valve 8 is in the closed state, the air conditioner tube 5 needs to be explosion proof. When the liquid pipe valve 8 is in a closed state, the control unit 2 controls the throttle valve 7 to be opened to a first preset opening degree, so that the refrigerant in the air conditioner liquid pipe 5 is unloaded to the condenser 4 until the liquid pipe temperature is approximately equal to the ambient temperature.
In summary, in the explosion-proof control method provided in this embodiment, explosion-proof is achieved through a control method, any valve element and pipeline structure similar to a safety valve are not required to be added, increasing design difficulty and cost are not affected, and when the service life of the air conditioner 1 is prolonged, the manufacturing cost of the air conditioner 1 is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An explosion-proof control method, characterized in that the explosion-proof control method comprises:
controlling a throttling component (3) to be opened to a first preset opening degree according to the liquid pipe temperature of an air conditioner liquid pipe (5) so as to unload the refrigerant in the air conditioner liquid pipe (5) through a condenser (4), wherein the air conditioner liquid pipe (5) is connected with the condenser (4) through the throttling component (3);
the step of controlling the throttling component (3) to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe (5) comprises the following steps:
judging whether a liquid pipe valve (8) is closed or not according to the temperature of the liquid pipe;
when the liquid pipe valve (8) is closed, the throttling component (3) is controlled to be opened to the first preset opening degree.
2. The explosion-proof control method according to claim 1, wherein the step of judging whether the liquid pipe valve (8) is closed according to the liquid pipe temperature comprises:
detecting the liquid pipe temperature of the air conditioner liquid pipe (5);
and comparing the liquid pipe temperature with the ambient temperature, and judging that the liquid pipe valve (8) is closed when the liquid pipe temperature is equal to the ambient temperature.
3. The explosion-proof control method according to claim 2, wherein the step of judging whether the liquid pipe valve (8) is closed according to the liquid pipe temperature before the step of detecting the liquid pipe temperature of the air conditioner liquid pipe (5) further comprises: and controlling the throttle component (3) to be opened to a second preset opening degree and maintaining the first preset time.
4. The explosion-proof control method according to claim 1, further comprising:
judging whether the air conditioner (1) is continuously stopped for a second preset time;
and after the air conditioner (1) is continuously stopped for a second preset time, controlling the throttling assembly (3) to reach a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe (5).
5. An air conditioner is characterized by comprising a control unit (2), a throttling component (3), a condenser (4) and an air conditioner liquid pipe (5), wherein the air conditioner liquid pipe (5) is connected with the condenser (4) through the throttling component (3);
the control unit (2) is connected with the throttling assembly (3) and is used for controlling the throttling assembly (3) to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe (5), so that the refrigerant in the air conditioner liquid pipe (5) is unloaded through the condenser (4), and the explosion prevention of the air conditioner liquid pipe (5) is realized;
the air conditioner (1) further comprises a liquid pipe valve (8), and the liquid pipe valve (8) is connected with one end, far away from the throttling component (3), of the air conditioner liquid pipe (5);
the control unit (2) is connected with the liquid pipe valve (8), and whether the liquid pipe valve (8) is closed or not is judged according to the liquid pipe temperature;
the control unit (2) is further configured to control the throttle assembly (3) to the first preset opening when the liquid pipe valve (8) is closed.
6. Air conditioner according to claim 5, characterized in that the air conditioner (1) further comprises a temperature sensor (9),
the temperature sensor (9) is used for detecting the liquid pipe temperature of the air conditioner liquid pipe (5);
the control unit (2) is connected with the temperature sensor (9) and used for comparing the liquid pipe temperature with the ambient temperature, and when the liquid pipe temperature is equal to the ambient temperature, the liquid pipe valve (8) is judged to be closed.
7. Air conditioner according to claim 6, characterized in that the control unit (2) is also adapted to control the throttle assembly (3) to open to a second preset opening degree and to maintain for a first preset time.
8. The air conditioner according to claim 5,
the control unit (2) is also used for judging whether the air conditioner (1) is continuously stopped for a second preset time;
the control unit (2) is also used for controlling the throttling component (3) to a first preset opening degree according to the liquid pipe temperature of the air conditioner liquid pipe (5) after the air conditioner (1) is continuously stopped for a second preset time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218177.9A CN107990482B (en) | 2017-11-28 | 2017-11-28 | Explosion-proof control method and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218177.9A CN107990482B (en) | 2017-11-28 | 2017-11-28 | Explosion-proof control method and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107990482A CN107990482A (en) | 2018-05-04 |
| CN107990482B true CN107990482B (en) | 2020-07-03 |
Family
ID=62034055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711218177.9A Active CN107990482B (en) | 2017-11-28 | 2017-11-28 | Explosion-proof control method and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107990482B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494445A (en) * | 2011-12-12 | 2012-06-13 | 龚文浩 | Start method for quickly discharging pressure of compressor of refrigeration system |
| CN202630535U (en) * | 2012-06-07 | 2012-12-26 | 珠海格力电器股份有限公司 | Pressure-regulating valve assembly and water source multi-connected machine air conditioner provided with same |
| CN106895486A (en) * | 2017-02-28 | 2017-06-27 | 广东美的制冷设备有限公司 | A kind of air-conditioner, the control device of air-conditioner and its control method |
| CN206291547U (en) * | 2016-11-25 | 2017-06-30 | 广州华凌制冷设备有限公司 | A kind of air-conditioning system |
| CN206347772U (en) * | 2016-12-12 | 2017-07-21 | 铁木真电子科技（昆山）有限公司 | A kind of compressor cooling provided with regulating valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6381712B2 (en) * | 2017-03-09 | 2018-08-29 | 三菱電機株式会社 | Refrigeration cycle equipment |
-
2017
- 2017-11-28 CN CN201711218177.9A patent/CN107990482B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494445A (en) * | 2011-12-12 | 2012-06-13 | 龚文浩 | Start method for quickly discharging pressure of compressor of refrigeration system |
| CN202630535U (en) * | 2012-06-07 | 2012-12-26 | 珠海格力电器股份有限公司 | Pressure-regulating valve assembly and water source multi-connected machine air conditioner provided with same |
| CN206291547U (en) * | 2016-11-25 | 2017-06-30 | 广州华凌制冷设备有限公司 | A kind of air-conditioning system |
| CN206347772U (en) * | 2016-12-12 | 2017-07-21 | 铁木真电子科技（昆山）有限公司 | A kind of compressor cooling provided with regulating valve |
| CN106895486A (en) * | 2017-02-28 | 2017-06-27 | 广东美的制冷设备有限公司 | A kind of air-conditioner, the control device of air-conditioner and its control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107990482A (en) | 2018-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7010927B2 (en) | Refrigerant system with controlled refrigerant charge amount | |
| JP2017219304A (en) | Air conditioning system, and leak detection method in air conditioning system | |
| JPWO2007083794A1 (en) | Air conditioner | |
| US10976090B2 (en) | Air conditioner | |
| CN107560101A (en) | A kind of fault detection method of air conditioner electronic expansion valve | |
| US20050086951A1 (en) | Expansion device with low refrigerant charge monitoring | |
| US11274866B2 (en) | Refrigeration apparatus with a refrigerant leakage detection and release mechanism | |
| CN107990482B (en) | Explosion-proof control method and air conditioner | |
| JP2009204168A (en) | Compressor protecting controlling device for air conditioner | |
| JP2004142701A (en) | Refrigeration cycle | |
| JP2009068812A (en) | Air conditioner | |
| CN104422209A (en) | Air conditioning system | |
| US9163862B2 (en) | Receiver fill valve and control method | |
| CN111412636A (en) | Air conditioner without communication circuit between indoor unit and outdoor unit and control method thereof | |
| CN104896683A (en) | Pressure reducing device, air conditioning system and air conditioner control method and device | |
| CN107228501A (en) | A kind of air conditioner | |
| JP2022181077A (en) | air conditioner | |
| EP4317836A1 (en) | Air conditioner | |
| US20220404082A1 (en) | Pressure relief arrangement in refrigerant circuits | |
| JPS58127058A (en) | Controller for refrigeration cycle | |
| CN115523532A (en) | Air conditioner, control method, defrosting device and storage medium | |
| KR200362652Y1 (en) | The Gas engine driven Heat Pump using the Double Gas Valve for the Interception | |
| CN111720950A (en) | Control method for reducing indoor side refrigerant leakage of air conditioner and air conditioner | |
| CN116989424A (en) | Refrigerant recovery method, controller, air conditioner and computer readable storage medium | |
| JPH10176865A (en) | Refrigeration cycle device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |