CN203376170U - Device for detecting air conditioner without inner machine - Google Patents
Device for detecting air conditioner without inner machine Download PDFInfo
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- CN203376170U CN203376170U CN201320332665.3U CN201320332665U CN203376170U CN 203376170 U CN203376170 U CN 203376170U CN 201320332665 U CN201320332665 U CN 201320332665U CN 203376170 U CN203376170 U CN 203376170U
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Abstract
The utility model discloses a device for detecting an air conditioner without an inner machine. The device comprises a compressor, a four-way valve, an outdoor heat exchanger, a restricting element, a gas-liquid separator, a first control valve, and a second control valve, wherein one end of the first control valve is connected with the restricting element, and the other end of the first control valve is connected with the inlet of the gas-liquid separator. One end of the second control valve is connected with the restricting element, and the other end of the second control valve is connected with a port of an indoor heat exchanger. According to the utility model, the device can complete the detection of the air conditioner in the condition that the inner heat exchanger is not connected during factory detection, thereby simplifying the detection process and improving work efficiency. The device is very practical.
Description
Technical field
The utility model relates to field of household appliances, in particular to a kind of air conditioner without interior machine detecting device.
Background technology
General air conditioner all must be through factory testing before dispatching from the factory, existing detection method needs indoor heat exchanger and detected machine are coupled together with pipeline in testing process, and connecting line is vacuumized, open again high-pressure stop valve and low-pressure shutoff valve, need power lead and connection etc. is coupled together simultaneously, operation is loaded down with trivial details, reduces production efficiency.And may cause coolant leakage or the incomplete situation of refrigerant recovering to occur, can have influence on the original actual coolant quantity of outer machine, poor practicability.
The utility model content
The utility model is intended at least solve one of technical matters existed in prior art.For this reason, a purpose of the present utility model is to propose a kind of air conditioner without interior machine detecting device, and this air conditioner can be realized not connecting indoor heat exchanger without interior machine detecting device and carry out factory testing.
According to air conditioner of the present utility model, without interior machine detecting device, comprising: compressor, compressor has air entry and exhausr port; Four-way valve, four-way valve has exhaust port, suction port, outdoor heat exchanger port and indoor heat exchanger port, and wherein the exhausr port of compressor is connected with the exhaust port of four-way valve; Outdoor heat exchanger, an end of outdoor heat exchanger is connected with the outdoor heat exchanger port; Restricting element, restricting element is connected with outdoor heat exchanger; Gas-liquid separator, gas-liquid separator has import and outlet, and the import of gas-liquid separator is connected with suction port, and the outlet of gas-liquid separator is connected with the air entry of compressor; The first operation valve, an end of the first operation valve is connected with restricting element, and the other end of the first operation valve is connected with the import of gas-liquid separator; The second operation valve, an end of the second operation valve connects and is connected with restricting element, and the other end of the second operation valve is connected with the indoor heat exchanger port.
By being set, the first operation valve, the second operation valve can not connect indoor heat exchanger when the factory testing without interior machine detecting device according to air conditioner of the present utility model, do not affect in the situation of original coolant quantity of air conditioner and just complete the detection to air conditioner, simplified trace routine, improved production efficiency, practicality is good.
In addition, also there is following additional technical feature according to air conditioner of the present utility model without interior machine detecting device:
The first operation valve is electromagnetic expanding valve, and the second operation valve is electromagnetic expanding valve.
The first operation valve is solenoid valve, and the second operation valve is solenoid valve.
Restricting element is kapillary.
Restricting element is solenoid valve.
According to air conditioner of the present utility model, without interior machine detecting device, also comprise: high-pressure stop valve, high-pressure stop valve is connected with restricting element; Low-pressure shutoff valve, low-pressure shutoff valve is connected with the indoor heat exchanger port.
Also comprise retaining valve according to air conditioner of the present utility model without interior machine detecting device, retaining valve at the other end from the second operation valve to one-way conduction the second operation valve the direction of an end.
Also comprise oil separator according to air conditioner of the present utility model without interior machine detecting device, oil separator is installed between the exhaust port of the exhausr port of compressor and four-way valve.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
The accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic diagram without interior machine detecting device according to the air conditioner of an embodiment of the utility model.
Fig. 2 is the schematic flow sheet without the detection method of interior machine detecting device according to the air conditioner of an embodiment of the utility model.
Reference list:
100, air conditioner is without interior machine detecting device; 1, compressor; 11, air entry; 12, exhausr port; 2, four-way valve; 21, suction port; 22, exhaust port; 23, outdoor heat exchanger port; 24, indoor heat exchanger port; 3, outdoor heat exchanger; 31, indoor heat exchanger; 4, restricting element; 5, the first operation valve; 6, retaining valve; 7, the second operation valve; 8, high-pressure stop valve; 9, low-pressure shutoff valve; 10, gas-liquid separator; 101, import; 102, outlet
Embodiment
Below describe embodiment of the present utility model in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " vertically ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Air conditioner according to the utility model first aspect embodiment is described without interior machine detecting device 100 below with reference to Fig. 1.
According to the air conditioner of the utility model first aspect embodiment, without interior machine detecting device 100, comprising: compressor 1, four-way valve 2, outdoor heat exchanger 3, restricting element 4, gas-liquid separator 10, the first operation valve 5 and the second operation valve 7.
Wherein compressor 1 has air entry 11 and exhausr port 12.Air conditioner is sucked in the compression chamber of compressor 1 through air entry 11 without the refrigerant in interior machine detecting device 100 and is compressed in this compression chamber, becomes the cold media gas of High Temperature High Pressure, then discharges compressors 1 by the exhausr port 12 of compressor 1.
As shown in Figure 1, four-way valve 2 has suction port 21, exhaust port 22, outdoor heat exchanger port 23 and indoor heat exchanger port 24.As shown in Figure 1, the exhausr port 12 of compressor 1 is connected with the exhaust port 22 of four-way valve 2.Gas-liquid separator 10 has import 101 and outlet 102, and the import 101 of gas-liquid separator 10 is connected with suction port 21, and the outlet 102 of gas-liquid separator 10 is connected with the air entry 11 of compressor 1.
Need explanation, here exhausr port 12 is connected and should makes broad understanding with exhaust port 22, can be not directly to be connected, for example, in an embodiment of the present utility model, also be provided with oil separator (scheming not shown) between exhausr port 12 and exhaust port 22, that is to say, the exhausr port 12 of compressor 1 is indirectly to be connected with the exhaust port 22 of four-way valve 2 by oil separator.Wherein, oil separator has been prior art, therefore just is not described in detail here.
Particularly, four-way valve 2 comprises valve body, pilot valve assembly and the elements such as solenoid that coordinate with this pilot valve assembly, wherein, be provided with reversing arrangement in valve body, be formed with two isolated the first chambers and the second chamber between the inwall of this reversing arrangement and valve body, the pilot valve assembly comprises first to fourth kapillary, the first kapillary is communicated with all the time with suction port, the second kapillary is communicated with all the time with exhaust port, three capillary is communicated with the first chamber, the 4th kapillary is communicated with the second chamber, pilot valve assembly and solenoid can make the first kapillary be communicated with in three capillary and the 4th kapillary one while coordinating, the second kapillary is communicated with another in three capillary and the 4th kapillary, now can form two kinds of situations, the first situation is that the first chamber is in environment under low pressure, the second chamber is in hyperbaric environment, the second situation is that the first chamber is in hyperbaric environment, the second chamber is in environment under low pressure, thereby can so that moving, reversing arrangement make the four-way valve commutation by the pressure environment that changes the first chamber and the second chamber.Wherein, when the first kapillary and three capillary connection, when the second kapillary and the 4th kapillary are communicated with, suction port 21 and indoor heat exchanger port 24 are communicated with, and exhaust port 22 and outdoor heat exchanger port 23 are communicated with.When the first kapillary and the connection of the 4th kapillary, when the second kapillary and three capillary are communicated with, suction port 21 and outdoor heat exchanger port 23 are communicated with, and exhaust port 22 and indoor heat exchanger port 24 are communicated with.Wherein, the concrete structure of pilot valve assembly and pilot valve assembly have been known by those skilled in the art with the principle etc. that coordinates of solenoid, just are not described in detail here.
With reference to Fig. 1, an end of outdoor heat exchanger 3 is connected with outdoor heat exchanger port 23.
Restricting element 4 is connected with outdoor heat exchanger 3.Be understandable that, restricting element 4 can be kapillary, can be also solenoid valve.Restricting element 4 has been prior art, therefore just is not described in detail here.
One end of the first operation valve 5 is connected with restricting element 4, and the other end of the first operation valve 5 is connected with the import 101 of gas-liquid separator 10, and specifically, the other end of the first operation valve 5 is connected between the import 101 of suction port 21 and gas-liquid separator 10.What deserves to be explained is, the first operation valve 5 has the opening and closing two states.Particularly, the first operation valve 5 can be electromagnetic expanding valve, and certain the first operation valve 5 also can be solenoid valve.
One end of the second operation valve 7 is connected with restricting element 4, and the other end of the second operation valve 7 is connected with indoor heat exchanger port 24.What deserves to be explained is, the second operation valve 7 has the opening and closing two states, and particularly, the second operation valve 7 can be electromagnetic expanding valve, and certain the second operation valve 7 also can be solenoid valve.
At air conditioner during without interior machine detecting device 100 factory testing, the content detected comprises refrigeration and heats two kinds of patterns, when whether the detection of air conditioner being carried out to refrigeration mode without interior machine detecting device 100 can run well without interior machine detecting device 100 to detect air conditioner, now open the first operation valve 5, close the second operation valve 7, by controlling solenoid and pilot valve assembly, coordinate, so that the first kapillary and three capillary are communicated with, the second kapillary and the 4th kapillary are communicated with, thereby make exhaust port 22 and outdoor heat exchanger port 23 be communicated with, suction port 21 and indoor heat exchanger port 24 are communicated with.
Then, control compressor 1 work, if at this moment air conditioner is working properly without interior machine detecting device 100, air conditioner can pass through exhaust port 22, outdoor heat exchanger port 23, outdoor heat exchanger 3 successively without the refrigerant in interior machine detecting device 100 so, restricting element 4, the rear inflow gas-liquid separator 10 of the first operation valve 5 carry out gas-liquid separation, then get back to compressor 1.Like this can be according to air conditioner without the operational situation of interior machine detecting device 100 under refrigeration mode, do not connect indoor heat exchanger 31 and just can judge whether air conditioner can run well without outdoor heat exchanger 3 and the heat pump of interior machine detecting device 100, simplify trace routine, improved production efficiency.
In addition, when whether the detection air conditioner can run well without interior machine detecting device 100, those skilled in the art can be by detecting compressor 1 running status, comprise running frequency or delivery temperature, or by the pipe Wen Wendu of sensing chamber's external heat exchanger 3, or the detection methods such as fluid state at air entry 11 places by detecting compressor 1 with judge air conditioner without interior machine detecting device 100 whether in normal operation.
Whether the detection of then air conditioner being carried out heating mode without interior machine detecting device 100 can normal commutation to detect four-way valve 2; now; by controlling the cooperation of pilot valve assembly and solenoid; so that the first kapillary and the 4th kapillary are communicated with; the second kapillary and three capillary are communicated with; now because the pressure environment changed in the first chamber and the second chamber needs predetermined time; be that four-way valve 2 commutates and needs predetermined time, so air conditioner is first according to the refrigeration mode operation, to control without interior machine detecting device 100 within this predetermined time.Wherein, this schedule time can be according to concrete settings the such as performance parameter of different four-way valve 2.
Close the second operation valve 7 within this schedule time, open the first operation valve 5, when between the first chamber of four-way valve 2 and the second chamber, produce certain pressure poor after, when if four-way valve 2 commutation is normal, reversing arrangement in four-way valve 2 can be commutated, now, from suction port 21 and indoor heat exchanger port 24, be communicated with, the state that exhaust port 22 and outdoor heat exchanger port 23 are communicated with is converted to suction port 21 and outdoor heat exchanger port 23 is communicated with, the state that exhaust port 22 and indoor heat exchanger port 24 are communicated with.Open the second operation valve 7 simultaneously, close the first operation valve 5, if at this moment air conditioner is working properly without interior machine detecting device 100, air conditioner can pass through exhaust port 22, indoor heat exchanger port 24, the second operation valve 7 successively without the refrigerant in interior machine detecting device 100 so, restricting element 4, outdoor heat exchanger 3, outdoor heat exchanger port 23, the rear inflow gas-liquid separator 10 of suction port 21 carry out gas-liquid separation, then get back to compressor 1.Like this can be according to air conditioner without the operational situation of interior machine detecting device 100 under heating mode; do not connect indoor heat exchanger 31 and just can judge whether air conditioner can run well without interior machine detecting device 100; whether four-way valve 2 can normal commutation, has improved production efficiency.
Be understandable that, in testing process, no matter under refrigeration mode or heating mode, signal piping all seals, the situation of secondary refrigerant leakage can not occur like this, and saved the step that reclaims refrigerant, do not affect air conditioner without original actual coolant quantity in interior machine detecting device 100.
By being set, the first operation valve 5, the second operation valve 7 can not connect indoor heat exchanger 31 when the factory testing without interior machine detecting device 100 according to the air conditioner of the utility model first aspect embodiment, do not affect air conditioner without just completing the detection without interior machine detecting device 100 to air conditioner in the situation of original coolant quantity of interior machine detecting device 100, simplified trace routine, improved production efficiency, practicality is good.
In an embodiment of the present utility model, when air conditioner needs to connect indoor heat exchanger 31 without interior machine detecting device 100, air conditioner also can comprise high-pressure stop valve 8 and low-pressure shutoff valve 9 without interior machine detecting device 100, particularly, one end of indoor heat exchanger 31 can be connected with restricting element 4, and the other end of indoor heat exchanger 31 can be connected with indoor heat exchanger port 24.Wherein high-pressure stop valve 8 is connected with restricting element 4, and high-pressure stop valve 8 can be located between restricting element 4 and indoor heat exchanger 31.Low-pressure shutoff valve 9 is connected with indoor heat exchanger port 24, and low-pressure shutoff valve 9 can be located between indoor heat exchanger port 24 and indoor heat exchanger 31.Thereby can be so that the connection more convenient and quicker of indoor heat exchanger 31 by high-pressure stop valve 8 and low-pressure shutoff valve 9 are set, and have simplified the manufacture process of complete machine.What deserves to be explained is, high-pressure stop valve 8 and low-pressure shutoff valve 9 all have the opening and closing two states.
In an embodiment of the present utility model, air conditioner also comprises retaining valve 6 without interior machine detecting device 100, retaining valve 6 at the other end from the second operation valve 7 to one-way conduction the second operation valve 7 direction of an end.That is to say, air conditioner can not pass through to the direction of the other end of the second operation valve 7 from an end of the second operation valve 7 without the refrigerant in interior machine detecting device 100.So further guarantee that refrigerant can not pass through to the direction of the other end of the second operation valve 7 from an end of the second operation valve 7, improved the reliability that air conditioner detects without interior machine detecting device 100.
Describe air conditioner according to the utility model first aspect embodiment in detail without the detection method of interior machine detecting device 100 when dispatching from the factory below with reference to Fig. 1 and Fig. 2.
Detection method according to the air conditioner of the utility model second aspect embodiment without interior machine detecting device 100, air conditioner without interior machine detecting device 100 be air conditioner according to the utility model first aspect embodiment without interior machine detecting device 100, detection method comprises the steps:
S1: exhaust port 22 and the outdoor heat exchanger port 23 of controlling four-way valve 2 are communicated with, suction port 21 and indoor heat exchanger port 24 are communicated with, and close the second operation valve 7, open the first operation valve 5, control compressor 1 operation, detect air conditioner and whether can complete refrigeration cycle without interior machine detecting device 100.If air conditioner is working properly without interior machine detecting device 100, air conditioner can pass through exhaust port 22, outdoor heat exchanger port 23, outdoor heat exchanger 3 successively without the refrigerant in interior machine detecting device 100, restricting element 4, the rear inflow gas-liquid separator 10 of the first operation valve 5 carry out gas-liquid separation, then get back to compressor 1, complete refrigeration cycle one time.Those skilled in the art can be by detecting compressor 1 running status, comprise running frequency or delivery temperature, or by the pipe Wen Wendu of sensing chamber's external heat exchanger 3, or the detection methods such as fluid state at air entry 11 places by detecting compressor 1 with judge air conditioner without interior machine detecting device 100 whether in normal operation.Particularly, the first operation valve 5 can be solenoid valve, and the second operation valve 7 can be electromagnetic expanding valve.
S2: control the second operation valve 7 and close with the first operation valve 5 and open after the schedule time and open the second operation valve 7 and close the first operation valve 5, detect air conditioner and whether complete and heat circulation without interior machine detecting device 100.Particularly, within this schedule time, by controlling the cooperation of pilot valve assembly and solenoid, so that the first kapillary and the 4th kapillary are communicated with, the second kapillary and three capillary are communicated with, now because the pressure environment that changes the first chamber and the second chamber needs the regular hour, therefore air conditioner is first according to the refrigeration mode operation, to control without interior machine detecting device 100 within this schedule time, within this schedule time the second operation valve 7 in closed condition, the first operation valve 5 is in open mode, when between the first chamber of four-way valve 2 and the second chamber, produce certain pressure poor after, when if four-way valve 2 commutation is normal, reversing arrangement after this schedule time in four-way valve 2 can be commutated, now from suction port 21 and indoor heat exchanger port 24, be communicated with, the state that exhaust port 22 and outdoor heat exchanger port 23 are communicated with is converted to suction port 21 and outdoor heat exchanger port 23 is communicated with, the state that exhaust port 22 and indoor heat exchanger port 24 are communicated with.Open the second operation valve 7 simultaneously, close the first operation valve 5, if at this moment air conditioner is working properly without interior machine detecting device 100, air conditioner can pass through exhaust port 22, indoor heat exchanger port 24, the second operation valve 7 successively without the refrigerant in interior machine detecting device 100 so, restricting element 4, outdoor heat exchanger 3, outdoor heat exchanger port 23, the rear inflow gas-liquid separator 10 of suction port 21 carry out gas-liquid separation, then get back to compressor 1.Those skilled in the art can be by detecting compressor 1 running status; comprise running frequency or delivery temperature; or by the pipe Wen Wendu of sensing chamber's external heat exchanger 3; or the detection methods such as fluid state at air entry 11 places by detecting compressor 1 with judge air conditioner without interior machine detecting device 100 whether in normal operation, whether four-way valve 2 can normal commutation.
Can not connect indoor heat exchanger 31 according to the air conditioner of the utility model second aspect embodiment without the detection method of interior machine detecting device 100, saved the operation that connects indoor heat exchanger and power lead and connection, thereby simplified trace routine, improved production efficiency.
In the detection method of air conditioner without interior machine detecting device 100 of the utility model second aspect embodiment, also comprise retaining valve 6, retaining valve 6 at the other end from the second operation valve 7 to one-way conduction the second operation valve 7 direction of an end.That is to say, air conditioner can not pass through to the direction of the other end of the second operation valve 7 from an end of the second operation valve 7 without the refrigerant in interior machine detecting device 100.So further guarantee that refrigerant can not pass through to the direction of the other end of the second operation valve 7 from an end of the second operation valve 7, improved the reliability that air conditioner detects without interior machine detecting device 100.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (8)
1. an air conditioner, without interior machine detecting device, is characterized in that, comprising:
Compressor, described compressor has air entry and exhausr port;
Four-way valve, described four-way valve has exhaust port, suction port, outdoor heat exchanger port and indoor heat exchanger port, and wherein the exhausr port of compressor is connected with the exhaust port of described four-way valve;
Outdoor heat exchanger, an end of described outdoor heat exchanger is connected with described outdoor heat exchanger port;
Restricting element, described restricting element is connected with described outdoor heat exchanger;
Gas-liquid separator, described gas-liquid separator has import and outlet, and the import of described gas-liquid separator is connected with described suction port, and the outlet of described gas-liquid separator is connected with the air entry of described compressor;
The first operation valve, an end of described the first operation valve is connected with described restricting element, and the other end of described the first operation valve is connected with the import of described gas-liquid separator;
The second operation valve, an end of described the second operation valve is connected with described restricting element, and the other end of described the second operation valve is connected with described indoor heat exchanger port.
2. air conditioner according to claim 1, without interior machine detecting device, is characterized in that, described the first operation valve is electromagnetic expanding valve, and described the second operation valve is electromagnetic expanding valve.
3. air conditioner according to claim 1, without interior machine detecting device, is characterized in that, described the first operation valve is solenoid valve, and described the second operation valve is solenoid valve.
4. air conditioner according to claim 1, without interior machine detecting device, is characterized in that, described restricting element is kapillary.
5. air conditioner according to claim 1, without interior machine detecting device, is characterized in that, described restricting element is solenoid valve.
6. air conditioner according to claim 1, without interior machine detecting device, is characterized in that, also comprises:
High-pressure stop valve, described high-pressure stop valve is connected with described restricting element;
Low-pressure shutoff valve, described low-pressure shutoff valve is connected with described indoor heat exchanger port.
7. air conditioner according to claim 2, without interior machine detecting device, is characterized in that, also comprises retaining valve, described retaining valve at the described other end from described the second operation valve to described the second operation valve of one-way conduction the direction of a described end.
8. air conditioner according to claim 1, without interior machine detecting device, is characterized in that, also comprises oil separator, and described oil separator is installed between the exhaust port of the exhausr port of described compressor and described four-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320332665.3U CN203376170U (en) | 2013-06-08 | 2013-06-08 | Device for detecting air conditioner without inner machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320332665.3U CN203376170U (en) | 2013-06-08 | 2013-06-08 | Device for detecting air conditioner without inner machine |
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| Publication Number | Publication Date |
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| CN203376170U true CN203376170U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320332665.3U Expired - Fee Related CN203376170U (en) | 2013-06-08 | 2013-06-08 | Device for detecting air conditioner without inner machine |
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| CN (1) | CN203376170U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236937A (en) * | 2013-06-08 | 2014-12-24 | 广东美的暖通设备有限公司 | Air-conditioner indoor-unit-free detection device and method |
| CN110836556A (en) * | 2019-11-20 | 2020-02-25 | 广东美的暖通设备有限公司 | Operation control device and method, air conditioning system, and computer-readable storage medium |
-
2013
- 2013-06-08 CN CN201320332665.3U patent/CN203376170U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236937A (en) * | 2013-06-08 | 2014-12-24 | 广东美的暖通设备有限公司 | Air-conditioner indoor-unit-free detection device and method |
| CN104236937B (en) * | 2013-06-08 | 2017-11-10 | 广东美的暖通设备有限公司 | Air conditioner is without interior machine detecting device and detection method |
| CN110836556A (en) * | 2019-11-20 | 2020-02-25 | 广东美的暖通设备有限公司 | Operation control device and method, air conditioning system, and computer-readable storage medium |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 |