CN216769871U - Gas-liquid separator and air conditioner - Google Patents
Gas-liquid separator and air conditioner Download PDFInfo
- Publication number
- CN216769871U CN216769871U CN202220318411.5U CN202220318411U CN216769871U CN 216769871 U CN216769871 U CN 216769871U CN 202220318411 U CN202220318411 U CN 202220318411U CN 216769871 U CN216769871 U CN 216769871U
- Authority
- CN
- China
- Prior art keywords
- liquid
- return
- gas
- float switch
- air conditioner
- 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 embodiment of the utility model provides a gas-liquid separator and an air conditioner, and relates to the technical field of air conditioners. The gas-liquid separator comprises a shell and a float switch, the float switch is installed inside the shell, the resistance value of the float switch changes along with the change of the height of the liquid level in the shell so as to reflect the height of the liquid level in the shell, and when the height of the liquid level reaches the degree with the risk of liquid return, the liquid return control can be timely carried out on the air conditioner, the effect of liquid return protection is achieved, and the service life of the compressor is prolonged.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a gas-liquid separator and an air conditioner.
Background
The air conditioning unit runs in a low-temperature refrigeration and low-temperature heating state, due to the fact that heat exchange between a refrigerant and outside air is poor, the refrigerant is not completely evaporated, liquid refrigerant is easily sucked to an air suction port of a compressor through an air return pipe, liquid compression of the compressor is caused, the service life of the compressor is affected, the situation is worse under the condition that liquid is added to a long matching pipe, a gas-liquid separator is generally added to the front section of the air return pipe of the compressor at present, a part of liquid refrigerant is stored, and the phenomenon of liquid return of the compressor is avoided.
However, the gas-liquid separator in the current market has no preposed recognition, adjustment and control functions for the liquid return condition, and when the liquid level reaches a certain height, the liquid return phenomenon can also occur, so that the service life of the compressor is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problems that: the existing gas-liquid separator has no preposed recognition, regulation and control functions on the liquid return condition, and the liquid return phenomenon can also occur when the liquid level is at a certain height, so that the service life of the compressor is reduced.
In order to solve the above problem, the present invention provides, in a first aspect, a gas-liquid separator including:
a housing;
and the float switch is arranged in the shell, and the resistance value of the float switch changes along with the change of the liquid level in the shell so as to reflect the liquid level in the shell.
The gas-liquid separator provided by the embodiment has the beneficial effects that:
through add float switch in vapour and liquid separator, float switch's resistance value changes along with the liquid level altitude variation in the casing to liquid level in the reaction casing, when liquid level reached the degree that has the liquid return risk, can in time carry out liquid return control to the air conditioner, play the effect of liquid return protection, promote the life of compressor.
In an alternative embodiment, the float switch comprises:
the bar-shaped resistor is vertically arranged in the shell, and one end of the bar-shaped resistor is used for being electrically connected to the electric control board;
the buoy is slidably arranged on the strip-shaped resistor, is used for suspending on the liquid level and is electrically connected to the electric control board;
wherein, the bar-shaped resistor and the buoy form the slide rheostat.
Therefore, the float switch is simple in structural form, the buoy is suspended on the liquid level, the liquid level is different in height, the resistance values of the strip-shaped resistors connected into the circuit are different, and the height of the liquid level can be accurately reflected.
In an alternative embodiment, the gas-liquid separator further comprises:
one end of the outlet pipe is positioned in the shell, and the other end of the outlet pipe extends out of the shell;
wherein, the bottom of bar resistance is lower than the entry of outlet pipe, and the top of bar resistance is not lower than the entry of outlet pipe.
Because liquid will get into the entry of outlet pipe, cause the liquid that returns when liquid level reaches the entry of outlet pipe in the vapour and liquid separator, so the liquid level just need monitor when not reaching the entry of outlet pipe yet, is less than the entry of outlet pipe with the bottom of bar resistance, and the top of bar resistance is not less than the entry of outlet pipe, can monitor the liquid level and be about to reach the height of this section of entry of outlet pipe, when the liquid risk that will appear returning, in time makes liquid return control.
In a second aspect, the present invention provides an air conditioner comprising the gas-liquid separator of the preceding embodiments.
In an alternative embodiment, the air conditioner further comprises:
the electric control plate is electrically connected with the float switch;
wherein, the float switch is used for inputting constant current value, and the electric control board is used for real-time voltage value U according to the float switchReal timeAnd judging whether to perform liquid return control or not.
In a third aspect, the present invention provides a method of controlling an air conditioner including the gas-liquid separator of the foregoing embodiment, the method comprising:
the float switch is used for inputting a constant current value;
according to the real-time voltage value U of the float switchReal timeAnd judging whether to perform liquid return control or not.
The air conditioner and the control method thereof provided by the embodiment have the beneficial effects that:
the float switch is additionally arranged in the gas-liquid separator, the electric control board is electrically connected with the float switch, and after the float switch inputs a constant current value, the electric control board receives a real-time voltage value U of the float switchReal timeThe liquid level height in the gas-liquid separator can be reflected, when the liquid level height reaches the degree with the liquid return risk, the liquid return control can be timely carried out on the air conditioner, the effect of liquid return protection is achieved, and the service life of the compressor is prolonged.
In an alternative embodiment, the real-time voltage value U is dependent on the float switchReal-timeThe step of judging whether to carry out liquid return control comprises the following steps:
at UReal-time＜U2In the case of (3), it is determined that the liquid return control is not performed;
at UReal time≥U2In the case of (3), judging to perform liquid return control;
wherein, U2At a critical voltage value of UReal time＝U2In the case of (3), the liquid height H in the gas-liquid separator is free from the risk of liquid return, H and UReal timeIn an inverse proportional relationship.
In an alternative embodiment, at UReal time＜U2In the case of (3), the judgment is not madeAfter the step of controlling the liquid return, the control method of the air conditioner comprises the following steps:
controlling the compressor to normally run according to the first return gas superheat degree T1Real-time valve step P for controlling electronic expansion valveReal time；
Wherein, T1＝TReturn air-THeat exchanger-S0，TReturn airFor return air temperature, THeat exchangerIs the temperature of the heat exchanger, S0Is the first superheat correction value.
At this moment, the air conditioner has no liquid return risk, and the whole machine is normally controlled to meet the comfort requirement of a client.
In an alternative embodiment, at UReal time≥U2In the case of (3), after the step of determining to perform the liquid return control, the method for controlling an air conditioner includes:
at U1≥UReal time≥U2Under the condition of (1), controlling the compressor to normally operate according to the second return air superheat degree T2Real-time valve step P for controlling electronic expansion valveReal time；
Wherein, U1For a first predetermined voltage value, at UReal-time＝U1In the case of (2), there is a risk of liquid return at a liquid level H in the gas-liquid separator, T2＝TReturn air-THeat exchanger-S0-S2，S2And is the second superheat correction value.
At this moment, there is slight liquid return risk, need suitably improve the return air superheat degree, can effectively promote the content of gaseous state refrigerant in the return air, and then play the effect that slows down to the accumulation of the liquid refrigerant of vapour and liquid separator the inside, thereby play and reduce the risk of return liquid, satisfy the reliability of return liquid, wherein, the improvement of return air superheat degree is through reducing electronic expansion valve's valve step, can reduce the flow of refrigerant, and then make the refrigerant that gets into the heat exchanger obtain better heat transfer, more liquid refrigerant evaporates to the gaseous state, effectively improve the content of gaseous state refrigerant in the return air.
In an alternative embodiment, at UReal time≥U2In the case of (3), the step of determining to perform the liquid return control is followed by the step of determining to perform the liquid return controlThe control method of the air conditioner comprises the following steps:
at U0≥UReal time＞U1Under the condition of (3), controlling the compressor to normally operate according to the third return air superheat degree T3Real-time valve step P for controlling electronic expansion valveReal time；
Wherein, U0Is a limit voltage value, T3＝TReturn air-THeat exchanger-S0-S1，S1And is the third superheat correction value.
At the moment, the liquid return risk is serious, the degree of superheat of return gas needs to be quickly improved, the amount of gaseous refrigerants entering the gas-liquid separator is quickly improved, and the liquid return reliability is met.
In an alternative embodiment, at UReal time≥U2In the case of (3), after the step of determining to perform the liquid return control, the method for controlling an air conditioner includes:
at UReal time＞U0In the case of (3), the compressor is controlled to stop, and the real-time valve step P of the electronic expansion valveReal timeKeeping the preset time of the current opening degree, and adjusting to the first opening degree P1，P1＞0。
In an alternative embodiment, the first opening degree P1The value range is as follows: 3 pls-7 pls, and the value range of the preset duration is as follows: 100s to 140 s.
Here the real-time valve step P of the electronic expansion valveReal timeKeeping the preset time of the current opening degree to ensure the rapid pressure balance after the system is shut down, and adjusting the opening degree of the electronic expansion valve to the first opening degree P after the pressure balance1In order to avoid excessive reset during reset of the electronic expansion valve, the electronic expansion valve should be reset to 0pls theoretically, but the internal mechanical structure is easily damaged at the moment, and in order to avoid the situation that the electronic expansion valve is stuck after reset, the electronic expansion valve is only reduced to the first opening degree P1。
In an alternative embodiment, 4 ℃ ≧ S0≥0，5℃≥S1≥3℃，2℃≥S2≥1℃。
In an alternative embodiment, in the cooling mode, THeat exchanger＝TInner disc，TInner discThe temperature of the inner plate of the evaporator; in the heating mode, THeat exchanger＝TDefrosting，TDefrostingIs the defrost temperature of the condenser.
Drawings
FIG. 1 is a schematic view of a gas-liquid separator according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air conditioner according to a second embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method of an air conditioner according to a second embodiment of the present invention.
Description of reference numerals:
1-a gas-liquid separator; 11-a housing; 12-an outlet pipe; 13-an inlet tube; 14-a float switch; 141-bar resistors; 142-a buoy; 2, an air conditioner; 21-a compressor; 22-a four-way valve; 23-an evaporator; 24-a condenser; 25-an electronic expansion valve; 26-return air temperature sensor; 27-inner disc temperature sensor; 28-defrost temperature sensor.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
First embodiment
Referring to fig. 1, the present embodiment provides a gas-liquid separator 1, where the gas-liquid separator 1 includes a housing 11, an outlet pipe 12, an inlet pipe 13, and a float switch 14.
Wherein one end of the outlet pipe 12 is located inside the housing 11 and the other end of the outlet pipe 12 protrudes from the inside of the housing 11. The inlet pipe 13 is inserted into the interior of the housing 11 from the outside of the housing 11.
The float switch 14 is installed inside the casing 11, and the resistance value of the float switch 14 changes along with the change of the liquid level in the casing 11 to reflect the liquid level in the casing 11, when the liquid level reaches the degree with the risk of liquid return, the liquid return control can be timely performed on the air conditioner 2, the effect of liquid return protection is achieved, and the service life of the compressor 21 (shown in fig. 2) is prolonged.
Specifically, the float switch 14 is a slide rheostat, and the float switch 14 includes a bar resistor 141 and a float 142, wherein the bar resistor 141 is vertically installed in the housing 11, and one end of the bar resistor 141 is used for electrically connecting to the electronic control board. A float 142 is slidably mounted on the strip resistor 141, the float 142 being adapted to float on the liquid surface, the float 142 being adapted to be electrically connected to the electronic control board. Thus, the float switch 14 has a simple structure, the float 142 floats on the liquid surface, the liquid surface height is different, the resistance value of the strip-shaped resistor 141 connected to the circuit is different, and the liquid surface height can be accurately reflected.
Wherein, the bottom end of the bar-shaped resistor 141 is lower than the inlet of the outlet pipe 12, and the top end of the bar-shaped resistor 141 is not lower than the inlet of the outlet pipe 12. Because when the liquid level in the gas-liquid separator 1 reaches the inlet of the outlet pipe 12, the liquid will enter the inlet of the outlet pipe 12 to cause liquid return, the liquid level is monitored when the liquid level does not reach the inlet of the outlet pipe 12, the bottom end of the strip-shaped resistor 141 is lower than the inlet of the outlet pipe 12, and the top end of the strip-shaped resistor 141 is not lower than the inlet of the outlet pipe 12, so that the liquid level at the section where the liquid level is about to reach the inlet of the outlet pipe 12 can be monitored, and when the liquid return risk will occur, liquid return control is timely performed.
The gas-liquid separator 1 provided by the embodiment has the beneficial effects that:
by additionally arranging the float switch 14 in the gas-liquid separator 1, the resistance value of the float switch 14 changes along with the change of the liquid level in the shell 11 so as to reflect the liquid level in the shell 11, when the liquid level reaches the degree with the risk of liquid return, the liquid return control can be timely and automatically carried out on the air conditioner 2, the effect of liquid return protection is achieved, and the service life of the compressor 21 is prolonged.
Second embodiment
Referring to fig. 2, the present embodiment provides an air conditioner 2, and the air conditioner 2 includes a compressor 21, a four-way valve 22, an evaporator 23, a condenser 24, an electronic expansion valve 25, an electric control board (not shown in the figure) and the gas-liquid separator 1 of the first embodiment.
Wherein, the gas-liquid separator 1, the compressor 21 and the four-way valve 22 are sequentially communicated end to end. The condenser 24, the electronic expansion valve 25, the evaporator 23 and the four-way valve 22 are sequentially communicated end to end.
The electronic control board is electrically connected to the float switch 14 (see fig. 1), wherein the float switch 14 is used for inputting a constant current value, and the electronic control board is used for controlling the float switch 14 according to a real-time voltage value U of the float switch 14Real timeAnd judging whether to perform liquid return control or not.
The air conditioner 2 further includes an air-return temperature sensor 26, an inner panel temperature sensor 27, and a defrosting temperature sensor 28, the air-return temperature sensor 26 is installed on a pipe between the four-way valve 22 and the gas-liquid separator 1, and the air-return temperature sensor 26 is used for detecting an air-return temperature TReturn airAn inner tray temperature sensor 27 is installed on the inner tray of the evaporator 23, and the inner tray temperature sensor 27 is used for detecting the inner tray temperature T of the evaporator 23Inner discA defrost temperature sensor 28 is installed at the condenser 24, and the defrost temperature sensor 28 is used to detect a defrost temperature T of the condenser 24Defrosting。
Of course, the air conditioner 2 further includes other conventional components, such as a stop valve, a blower, etc., and the details thereof are not omitted herein.
Referring to fig. 3, the present embodiment further provides a control method of the air conditioner 2, which can be implemented by the electric control board and is common to both the cooling mode and the heating mode. The control method comprises the following steps:
s1: the float switch 14 is used to input a constant current value.
S2: calculating the real-time voltage value U of the float switch 14Real time。
In calculating the real-time voltage value UReal timeBefore, the compressor 21 can be controlled to operate for a first time, which is the time required from starting to stable operation of the compressor 21, and the process is unstable, liquid return protection control is not performed, and misjudgment is avoided. Wherein the first duration is greater than 3 min.
Real-time voltage value UReal-timeEqual to the product of the constant current value and the resistance value of the float switch 14, the real-time voltage value UReal timeIn direct proportion to the resistance value of the float switch 14.
S3: determine whether UReal time＜U2。
At UReal time＜U2Under the circumstances, at this moment, air conditioner 2 does not have the risk of returning liquid, then keeps complete machine normal control, satisfies customer' S travelling comfort demand, then judges not to return liquid and controls, carries out S4: controlling the compressor 21 to normally operate according to the first return air superheat degree T1Real-time valve step P for controlling electronic expansion valve 25Real time. Wherein, T1＝TReturn air-THeat exchanger-S0，TReturn airFor return air temperature, THeat exchangerIs the temperature of the heat exchanger, S0Is a first superheat correction value, and the temperature of 4 ℃ is more than or equal to S0≥0，500pls≥PReal time≥0。
At UReal time≥U2In the case of (1), wherein, U2At a critical voltage value of UReal time＝U2In the case of (1), the liquid level H in the gas-liquid separator is free from the risk of liquid return, H and UReal timeAnd in inverse proportion relation, after that, the liquid level continues to rise and the liquid return phenomenon is slightly intensified, and then the liquid return control is judged to be carried out, and S5: judging whether U is present1≥UReal time. Wherein, U1For a first predetermined voltage value, at UReal time＝U1In the case of (1), there is a risk of liquid return at a liquid level H in the gas-liquid separator 1, U1When each unit tests the low-temperature refrigeration and low-temperature heating state test liquid return experiment, the real-time voltage at two ends of the slide rheostat corresponding to a larger value is taken under the condition that the two buoys 142 are positioned on the liquid level, the voltage value corresponding to the worst liquid level height of the system during the whole unit design is represented, and different units are different and are constant values.
At U1≥UReal time≥U2In the case of (3), S6 is executed: controlling the compressor 21 to normally operate according to the second return air superheat degree T2Real-time valve step P for controlling electronic expansion valve 25Real time. Wherein, T2＝TReturn air-THeat exchanger-S0-S2，S2Is a second superheat correction value, 2 ℃ is more than or equal to S2More than or equal to 1 ℃. At this time, the risk of liquid return is slight, the superheat degree of return air needs to be properly improved, the content of the gaseous refrigerant in the return air can be effectively improved, and the liquid refrigerant in the gas-liquid separator 1 is further subjected to liquid refrigerant treatmentThe accumulation of play the effect that slows down to play and reduce the risk of returning the liquid, satisfy the reliability of returning the liquid, wherein, the improvement of return air superheat degree is through reducing electronic expansion valve 25's valve step, can reduce the flow of refrigerant, and then makes the refrigerant that gets into the heat exchanger obtain better heat transfer, and more liquid refrigerant evaporation are gaseous, effectively improve the content of gaseous state refrigerant in the return air.
Under the low temperature refrigeration state, only partial liquid refrigerant absorbs the heat in the air when passing through evaporimeter 23, and then evaporates to gaseous state refrigerant, and some refrigerant is in the liquid state of evaporation incomplete, and the content of gaseous state refrigerant in the return air can effectively be promoted to the improvement of return air superheat degree, and then plays the effect that slows down to the accumulation of the liquid refrigerant of vapour and liquid separator 1 the inside to play and reduce the risk of returning the liquid. Similarly, in the low-temperature heating state, the state in the condenser 24 coincides with the evaporator 23 in the cooling state.
The improvement of the degree of superheat of the return air is that the flow of the refrigerant can be reduced by reducing the valve step of the electronic expansion valve 25 in the outer unit, so that the refrigerant entering the evaporator 23 is better heat exchanged, more liquid refrigerants are evaporated into gaseous states, and the content of gaseous refrigerants in the return air is effectively improved.
At UReal time＞U1In the case of (3), S7 is executed: judging whether U is present0≥UReal-time. Wherein, U0Is a limit voltage value, U0The fixed value is determined according to the size of the gas-liquid separator 1.
At U0≥UReal time＞U1Under the circumstances, there is serious liquid return risk at this moment, need to improve the gas-return superheat degree fast, improve the gaseous refrigerant volume that gets into vapour and liquid separator 1 the inside fast, satisfy the liquid return reliability, then carry out S8: controlling the compressor 21 to normally operate according to the third return air superheat degree T3Real-time valve step P for controlling electronic expansion valve 25Real time. Wherein, T3＝TReturn air-THeat exchanger-S0-S1，S1Is a third superheat correction value, and the temperature of 5 ℃ is more than or equal to S1Not less than 3 ℃. At this time, the target degree of superheat of the returned air is increased for the purpose of increasing the degree of superheat of the returned airThe standard value is (S)0+S1) And further the superheat degree of the whole return air is improved by S1。
At UReal time＞U0In the case where the liquid level in the gas-liquid separator 1 reaches the maximum level, and the liquid level exceeds the inlet of the outlet pipe 12, a liquid return phenomenon occurs, then S9 is executed: controlling the compressor 21 to stop and the real-time valve step P of the electronic expansion valve 25Real-timeKeeping the preset time of the current opening degree, and adjusting to the first opening degree P1. Wherein, P1> 0, preferably a first opening P1The value range is as follows: 3 pls-7 pls, specifically 5pls, wherein the preset duration has a value range of: 100s to 140s, preferably 120 s.
Here the real-time valve step P of the electronic expansion valve 25Real timeKeeping the preset time of the current opening degree to ensure the rapid pressure balance after the system is shut down, and adjusting the opening degree of the electronic expansion valve 25 to the first opening degree P after the pressure balance1The reason is that in order to avoid excessive reset when the electronic expansion valve 25 is reset, the electronic expansion valve should be reset to 0pls theoretically, but the internal mechanical structure is easily damaged at this time, and in order to avoid the situation that the electronic expansion valve 25 is stuck after being reset, the electronic expansion valve is only reduced to the first opening degree P1。
Wherein, in the cooling mode, THeat exchanger＝TInner disc，TInner discIs the inner disc temperature of the evaporator 23; in the heating mode, THeat exchanger＝TDefrosting，TDefrosting deviceIs the defrost temperature of the condenser 24.
The air conditioner 2 and the control method thereof provided by the embodiment have the beneficial effects that:
1. by additionally arranging the float switch 14 in the gas-liquid separator 1 and electrically connecting the electric control board with the float switch 14, after the float switch 14 inputs a constant current value, the electric control board receives a real-time voltage value U of the float switch 14Real timeThe liquid level in the gas-liquid separator 1 can be reflected, when the liquid level reaches the level with the risk of liquid return, the liquid return control can be automatically carried out on the air conditioner 2 in time, the effect of liquid return protection is achieved, and the service life of the compressor 21 is prolonged;
2. the liquid level in the gas-liquid separator 1 can be well monitored and protected, the control of the electronic expansion valve 25 is realized, the division control of the return gas superheat degree is realized, automatic identification and adjustment are performed, the scheme is low in cost, the control is simple and accurate, and the liquid return protection effect is realized on the air conditioner 2.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected by one skilled in the art without departing from the spirit and scope of the utility model, as defined in the appended claims.
Claims (4)
1. A gas-liquid separator, comprising:
a housing (11);
a float switch (14) mounted inside the housing (11), the float switch (14) comprising:
the bar-shaped resistor (141) is vertically installed in the shell (11), and one end of the bar-shaped resistor (141) is used for being electrically connected to the electric control board; and
a float (142) slidably mounted on the strip resistor (141), the float (142) being adapted to float on a liquid surface, the float (142) being adapted to be electrically connected to an electronic control board;
the strip-shaped resistor (141) and the buoy (142) form a slide rheostat, and the resistance value of the slide rheostat is changed along with the change of the liquid level in the shell (11) so as to reflect the liquid level in the shell (11).
2. The gas-liquid separator of claim 1, further comprising: an outlet pipe (12), one end of the outlet pipe (12) being located inside the housing (11), the other end of the outlet pipe (12) protruding from the inside of the housing (11);
wherein the bottom end of the strip resistor (141) is lower than the inlet of the outlet pipe (12), and the top end of the strip resistor (141) is not lower than the inlet of the outlet pipe (12).
3. An air conditioner characterized in that it comprises the gas-liquid separator of claim 1.
4. The air conditioner according to claim 3, further comprising:
the electric control board is electrically connected with the float switch (14);
wherein the float switch (14) is used for inputting a constant current value, and the electric control board is used for controlling the current value according to the real-time voltage value U of the float switch (14)Real timeAnd judging whether to carry out liquid return control or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220318411.5U CN216769871U (en) | 2022-02-16 | 2022-02-16 | Gas-liquid separator and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220318411.5U CN216769871U (en) | 2022-02-16 | 2022-02-16 | Gas-liquid separator and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216769871U true CN216769871U (en) | 2022-06-17 |
Family
ID=81957211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220318411.5U Active CN216769871U (en) | 2022-02-16 | 2022-02-16 | Gas-liquid separator and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216769871U (en) |
-
2022
- 2022-02-16 CN CN202220318411.5U patent/CN216769871U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200285258A1 (en) | Method and Apparatus for Monitoring Refrigeration-Cycle Systems | |
| JP2997487B2 (en) | Refrigeration apparatus and method for indicating amount of refrigerant in refrigeration apparatus | |
| CN107906812B (en) | Air conditioning unit compressor cooling control method and system | |
| US20080315000A1 (en) | Integrated Controller And Fault Indicator For Heating And Cooling Systems | |
| CN105546770B (en) | The control method for frequency and air-conditioning of air-conditioning | |
| KR101917941B1 (en) | Air conditioner and control method thereof | |
| CN110895020B (en) | Refrigerant leakage detection method and air conditioner | |
| US20080051945A1 (en) | Method and apparatus for load reduction in an electric power system | |
| CN110895024A (en) | Refrigerant leakage detection method and air conditioner | |
| CN104964496A (en) | System and method for monitoring overheat of a compressor | |
| EP1914482A2 (en) | Method and apparatus for monitoring refrigerating-cycle systems | |
| CN109983286A (en) | Method for carrying out failure mitigation in vapor compression system | |
| CN105485992A (en) | Air conditioning system and refrigerant shortage detecting method thereof | |
| CN105674638A (en) | Gas-liquid separator, air-conditioning system and control method for preventing liquid returning of compressor | |
| CN216769871U (en) | Gas-liquid separator and air conditioner | |
| CN112393478B (en) | Defrosting control method of heat pump air conditioner | |
| WO2020235990A1 (en) | System and method for determining refrigerant charge status of an air conditioner | |
| CN116642276A (en) | Gas-liquid separator, air conditioner and control method thereof | |
| CN110926544B (en) | Detection equipment for heat exchanger unit and online automatic detection method thereof | |
| KR100565995B1 (en) | Method for Operating of Multi Type Air-conditioner by Install Position of Indoor-unit | |
| CN107101298A (en) | The windscreen control method for correcting and device of multiple on-line system and its outdoor fan | |
| CN111947280A (en) | Air conditioning system and control method thereof | |
| CN114341563B (en) | Method for operating an air conditioner unit based on an air flow | |
| CN114543268A (en) | Air conditioner and defrosting and descaling early warning control method thereof | |
| CN116294139A (en) | Air conditioner and defrosting control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220928 Address after: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee after: NINGBO AUX ELECTRIC Co.,Ltd. Patentee after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: 315000 No.1166 Mingguang North Road, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: NINGBO AUX ELECTRIC Co.,Ltd. Patentee before: Ningbo Oxfam intelligent commercial air conditioning manufacturing Co.,Ltd. |