CN209399616U - Idle call supercooling apparatus and air-conditioning - Google Patents
Idle call supercooling apparatus and air-conditioning Download PDFInfo
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- CN209399616U CN209399616U CN201822000629.2U CN201822000629U CN209399616U CN 209399616 U CN209399616 U CN 209399616U CN 201822000629 U CN201822000629 U CN 201822000629U CN 209399616 U CN209399616 U CN 209399616U
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Abstract
The utility model relates to air-conditioning technical fields, aim to solve the problem that now air-conditioned supercooling apparatus is at high cost, the problem of easily losing refrigerant energy, thus, the utility model provides a kind of idle call supercooling apparatus and air-conditioning, the air-conditioning includes condenser and drip tray, the outlet of condenser is connected with cold medium main pipe road, drip tray is used to collect the condensed water generated during air conditioner refrigerating, the supercooling apparatus includes that condensation flow is threaded a pipe, condensation flow is threaded a pipe including the pipeline section that exchanges heat, heat exchange pipeline section is arranged to make the refrigerant in condensed water and cold medium main pipe road to exchange heat, to promote the degree of supercooling of refrigerant.The supercooling apparatus of the utility model, it is exchanged heat using the condensed water and refrigerant of low temperature, improve the degree of supercooling of refrigerant, to avoid refrigerant from flash phenomenon occur, the uniformity of the cold medium flux distribution of every interior machine can be improved, the refrigerating efficiency of air-conditioning can be substantially improved, reduce system power dissipation, supercooling apparatus structure is simple, easy for installation, helps to provide more stable and uniform refrigeration effect.
Description
Technical field
The utility model relates to air-conditioning technical fields, and in particular to a kind of idle call supercooling apparatus and air-conditioning.
Background technique
In the modern life, air-conditioning has become universal one of the household electrical appliance of comparison.Form that there are many air-conditionings, for example, it is small
The one-to-one air-conditioning system of type is usually used in the small spaces such as home dwelling, and it is biggish that VRF Air Conditioning System is generally used for space
Centralized management is convenient in place, such as large-scale market, office building, hotel etc..
By taking multi-gang air-conditioner as an example, existing multi-online air-conditioning system, due to the indoor unit quantity that is connect with outdoor unit compared with
It is more, need the refrigerant for exporting condenser to be assigned to different indoor units by a plurality of pipeline, so that refrigerant pipe in condenser
The main side liquid pipe crushing of end is larger, can reduce the refrigeration effect of air-conditioning system.In Super long tube air-conditioning system, the crushing of refrigerant
It is more obvious, cause the part refrigerant in the liquid pipe of main side flash phenomenon occur, further reduced the refrigeration effect of air-conditioning.To make
Air-conditioning system (especially multi-online air-conditioning system) reaches more preferably refrigeration effect, needs to increase cold charge in air-conditioner outdoor unit
It sets to increase the degree of supercooling of refrigerant in the liquid pipe of main side, reduces the crushing of liquid refrigerants.
Existing supercooling apparatus is substantially from main side liquid pipe and draws bypass supercooling loop apparatus, and bypass therein is subcooled back
Road device casing or economizer substantially with electric expansion valve are constituted, and this supercooling loop apparatus is not only at high cost, but also
The portion of energy of refrigerant in the liquid pipe of main side can be lost, to reduce the refrigeration performance of air-conditioning, increases system power dissipation.
Correspondingly, this field needs a kind of new idle call supercooling apparatus to solve the above problems.
Utility model content
In order to solve the above problem in the prior art, in order to solve, now air-conditioned supercooling apparatus is at high cost, rapid wear
The problem of losing refrigerant energy, the first aspect of the utility model provide a kind of idle call supercooling apparatus, which includes condensation
Device and drip tray, the outlet of the condenser are connected with cold medium main pipe road, and the drip tray is used to collect during air conditioner refrigerating
The condensed water of generation, the supercooling apparatus include that condensation flow is threaded a pipe, and the condensation flow is threaded a pipe including the pipeline section that exchanges heat, described
Heat exchange pipeline section is arranged to make the refrigerant in the condensed water and the cold medium main pipe road to exchange heat, to promote the mistake of the refrigerant
Cold degree.
In the optimal technical scheme of above-mentioned idle call supercooling apparatus, the heat exchange pipeline section is set in the cold medium main pipe road
Periphery, it is described heat exchange pipeline section inner wall and the cold medium main pipe road outside wall surface between space be used for supply the condensed water
Circulation.
In the optimal technical scheme of above-mentioned idle call supercooling apparatus, flowing of the condensed water in the heat exchange pipeline section
Direction is opposite with flow direction of the refrigerant in the cold medium main pipe road.
In the optimal technical scheme of above-mentioned idle call supercooling apparatus, it further includes delivery pipe that the condensation flow, which is threaded a pipe,
Section, the conveying pipeline section are connected between the entrance and the drip tray of the heat exchange pipeline section.
In the optimal technical scheme of above-mentioned idle call supercooling apparatus, it further includes drainpipe that the condensation flow, which is threaded a pipe,
Section, the draining pipeline section are connected to the outlet of the heat exchange pipeline section.
In the optimal technical scheme of above-mentioned idle call supercooling apparatus, the conveying pipeline section and/or the draining pipeline section are also
It is connected with valve.
In the optimal technical scheme of above-mentioned idle call supercooling apparatus, the heat exchange pipeline section and/or the conveying pipeline section are adopted
With cold insulation tubing.
In the optimal technical scheme of above-mentioned idle call supercooling apparatus, the height of the drip tray is greater than the heat exchange pipeline section
Height.
It will be appreciated to those of skill in the art that in the optimal technical scheme of the utility model, by condenser
Outlet connect cold medium main pipe road, and by condensation flow thread a pipe in heat exchange pipeline section be set in the periphery in the cold medium main pipe road,
Then the heat exchange pipeline section is inputted after the condensed water generated on evaporator in air conditioner refrigerating or dehumidification process being converged by drip tray
In, it is exchanged heat using the condensed water and refrigerant of low temperature, the degree of supercooling of refrigerant is improved, so that refrigerant be avoided flash phenomenon, system occur
Under identical power consumption, the refrigerating efficiency and refrigeration effect of air-conditioning can be substantially improved；For multi-online air-conditioning system, machine indoors
Installation is there are when height fall, making the refrigerant for being distributed to every indoor unit more uniform, to guarantee every indoor mechanism cold effect
The homogeneity of fruit, avoiding the occurrence of mechanism cold effect in same system different chamber has larger difference, while realizing drop
Low system energy consumption.Supercooling apparatus in the utility model, structure is simple, easy for installation, takes full advantage of the cooling capacity in condensed water,
Every interior mechanism cold effect is more uniform when high cooling efficiency, Super long tube and high drop are installed, and energy-saving effect is good.
In the optimal technical scheme of the utility model, by the way that condensed water exchanges heat by convection with refrigerant, help
In enhancing heat transfer effect, and then be conducive to be promoted the degree of supercooling of refrigerant.
In the optimal technical scheme of the utility model, by the way that valve, energy side is arranged in heat exchange pipeline section and/or draining pipeline section
Just condensed water residence time in heat exchange pipeline section is controlled, helps sufficiently to discharge the cooling capacity in condensed water.
In the optimal technical scheme of the utility model, heat exchange pipeline section and/or conveying pipeline section use cold insulation tubing, can be effective
Weaken the heat exchange in the condensed water process of circulation between air, and then reduces the loss of refrigeration capacity of condensed water.
In the optimal technical scheme of the utility model, by the way that drip tray to be placed on heat exchange pipeline section, that is, after installing
Air conditioner indoor unit is higher than air-conditioner outdoor unit, and in condensed water transmission process, condensed water only can be to changing under self gravitation effect
Hot pipe section flowing reduces the hardware configuration cost of supercooling apparatus, can also drop without being equipped with dedicated pump or other suction units
The failure rate of low supercooling apparatus.
The second aspect of the utility model additionally provides a kind of air-conditioning, which includes institute in any of the above-described technical solution
The idle call supercooling apparatus stated.
In the optimal technical scheme of above-mentioned air-conditioning, the air-conditioning includes outdoor unit and at least one indoor unit, described cold
Condenser and the heat exchange pipeline section are arranged in the outdoor unit, and the drip tray is arranged in the indoor unit.
It is understood that crossing cold charge since the air-conditioning is configured with idle call described in any one of aforementioned technical solution
It sets, therefore has all technical effects of aforementioned supercooling apparatus, details are not described herein.
Detailed description of the invention
The idle call supercooling apparatus of the utility model described with reference to the accompanying drawings and in conjunction with multi-connected machine, in attached drawing:
Fig. 1 is the schematic diagram of the air-conditioning of the utility model, and the position of air conditioner indoor unit and air-conditioner outdoor unit is shown
Relationship；
Fig. 2 is the organigram of the air-conditioner outdoor unit of the utility model, and the construction and peace of supercooling apparatus is shown
Holding position；
Fig. 3 is a kind of embodiment that the heat exchange pipeline section in the supercooling apparatus of the utility model is connected with cold medium main pipe road；
Fig. 4 is the pressure enthalpy schematic diagram of the refrigerant of the utility model, and the pressure of refrigerant in refrigerative circle system is shown
Corresponding relationship between the refrigerating capacity of variation relation corresponding with enthalpy and air conditioner, power and the degree of supercooling of refrigerant；
Reference signs list:
1, indoor units；2, outdoor unit；20, compressor；21, oil eliminator；22, check valve；23, four-way valve；24, it condenses
Device；25, cold medium main pipe road；26, refrigerating plant；260, exchange heat pipeline section；261, pipeline section is conveyed；2610, main leg is conveyed；2611,
Delivery branch pipe section；262, pipeline section is drained；3, refrigerant；4, condensed water.
Specific embodiment
Preferred embodiments of the present invention are described with reference to the accompanying drawings.It should be understood by those skilled in the art that
It is that these embodiments are used only for explaining the technical principle of the utility model, it is not intended that limit the protection of the utility model
Range.Although this is not restrictive, this reality for example, embodiment disclosed below is illustrated in conjunction with multi-connected machine
The small-sized air condition system of one-to-one, such as Domestic hanging air-conditioning, Household vertical sky are equally applicable to novel technical solution
Adjust etc., the change of this application is without departing from the principles of the present invention and range.
In addition, in order to which the utility model is better described, given in specific embodiment below numerous specific
Details.It will be appreciated by those skilled in the art that without certain details, the utility model equally be can be implemented.In some realities
In example, the construction of outdoor unit well known to those skilled in the art, the construction of indoor unit, refrigeration cycle principle etc. are made detailed
Description, in order to highlight the purport of the utility model.
It should be noted that in the description of the present invention, term " on ", "lower", "inner", "outside" etc. instruction direction or
The term of positional relationship is direction based on the figure or positional relationship, this is intended merely to facilitate description, rather than indicates
Or imply that described device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as
Limitations of the present invention.
It should also be noted that, in the description of the present invention, unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the utility model.
The problem of existing air-conditioned supercooling apparatus pointed out based on background technique is at high cost, easy loss refrigerant energy, this reality
A kind of idle call supercooling apparatus is provided with novel, it is intended to which the structure for simplifying supercooling apparatus reduces the cost of supercooling apparatus, sufficiently
The refrigeration effect that air-conditioning is promoted using the cooling capacity in condensed water can also be improved between indoor unit and be made for multi-gang air-conditioner
The uniformity of cold effect reduces the power consumption of air-conditioning system, is user's save the cost.
- Fig. 4 referring to Fig.1, Fig. 1 are the schematic diagram of the air-conditioning of the utility model, and air conditioner indoor unit and air-conditioning is shown
The installation site relationship of outdoor unit；Fig. 2 is the organigram of the air-conditioner outdoor unit of the utility model, and cold charge was shown
The construction and installation site set；Fig. 3 is one that the heat exchange pipeline section in the supercooling apparatus of the utility model is connected with cold medium main pipe road
Kind embodiment；Fig. 4 is the pressure enthalpy schematic diagram of the refrigerant of the utility model, and the pressure of refrigerant in refrigerative circle system is shown
Corresponding relationship between the refrigerating capacity of power variation relation corresponding with enthalpy and air conditioner, power and the degree of supercooling of refrigerant.
It should be noted that the name of evaporator and condenser is only fitted during stating following embodiments
For air-conditioning work under cooling condition, it is not offered as air-conditioning and is only capable of work under cooling condition.It is understood that working as air-conditioning
Work is under heating condition, and the evaporator under cooling condition is the condenser become under heating condition, the condensation under cooling condition
Device is the evaporator become under heating condition.The air-conditioning under heating condition is not covered in the present invention.
A kind of air-conditioning is provided with reference first to Fig. 1, Fig. 1, the air-conditioning is configured with the supercooling apparatus 26 in the utility model.It should
Air-conditioning includes the indoor units 1 that an outdoor unit 2 and several indoor units compose in parallel.Mounted outdoor unit 2 and interior
The connection of unit 1 forms the 3 distribution channel (not shown in figure 1) of refrigerant that can make 3 circulation of refrigerant.
Specifically, indoor unit includes shell, air supply device, the evaporator being arranged in air-supply passage, is arranged in evaporator
The components such as the drip tray of lower section.In air conditioner refrigerating operating condition or except the refrigerant 3 and air heat-exchange under wet cooling condition, to circulate in evaporator
Condensed water 4 can be generated in the process, and the temperature of condensed water 4 is more much lower than indoor air themperature, contains a large amount of available cold
Amount.Condensed water 4 is collected in drip tray.
Referring to Fig. 2, outdoor unit 2 includes shell, and compressor 20, oil eliminator 21, condenser 24, supercooling are provided in shell
26 refrigerant 3 of device etc..In process of refrigerastion, compressor 20 sucks the gaseous coolant 3 of low-temp low-pressure from vaporizer side, through compressor 20
The gaseous coolant 3 of high temperature and pressure is exported after compression, the gaseous coolant 3 of high temperature and pressure passes through oil eliminator 21, check valve 22 and four
Condenser 24 is delivered to after port valve 23, refrigerant 3 is condensed into medium temperature high pressure by the gaseous coolant of high temperature and pressure 3 after condenser 24
Liquid refrigerants 3, i.e., condenser 24 outlet output is medium temperature high pressure liquid refrigerants 3.
In the utility model, it is connected with cold medium main pipe road 25 in the outlet of condenser 24, is also set at cold medium main pipe road 25
It is equipped with supercooling apparatus 26, a kind of embodiment of supercooling apparatus 26 is illustrated below.
Referring to Fig. 2 and Fig. 3, in the present embodiment, supercooling apparatus 26 is threaded a pipe including condensation flow, condensation flow siphunculus Dow Jones index
Pipeline under working condition for the condensed water 4 that circulates.The condensation flow is threaded a pipe including the pipeline section 260 that exchanges heat, and heat exchange pipeline section 260 is set
Being set to can make the refrigerant 3 in condensed water 4 and cold medium main pipe road 25 exchange heat, to promote the degree of supercooling of refrigerant 3.
Specifically, referring to Fig. 3, heat exchange pipeline section 260 is set in the periphery in cold medium main pipe road 25, forms barrel forms, heat exchange
The space circulated for condensed water 4 is formed between the inner wall of pipeline section 260 and the outside wall surface in cold medium main pipe road 25.The cannula structure can
It is completed in the process in production cold medium main pipe road 25.The pipeline section 260 that exchanges heat is equipped with 4 entrance of condensed water and condensed water 4 exports, so that
Condensed water 4 can circulate in heat exchange pipeline section 260.
When condensed water 4 reaches a certain amount of in the pipeline section 260 that exchanges heat, condensed water 4 is directly contacted with cold medium main pipe road 25, cold
Condensate 4 is exchanged heat by cold medium main pipe road 25 and refrigerant 3, and cooling capacity is transmitted in refrigerant 3, so that the degree of supercooling of refrigerant 3 is improved,
It can avoid causing refrigerant 3 to occur showing for shwoot in pipeline because the flowing of refrigerant 3 generates crushing in subsequent 3 process of circulation of refrigerant
As under the identical power consumption of compressor 20, the high refrigerant 3 of degree of supercooling can release in heat transfer process to be more used for and Interior Space
The cooling capacity of heat exchange occurs for gas, to effectively improve the refrigeration effect of air-conditioning system, and guarantees the coolant quantity of every indoor unit
It is distributed more uniform, so that indoor air temperature is reached target temperature earlier, and then reduce 20 runing time of compressor, reach efficient
Energy-efficient effect.Supercooling apparatus 26 in the utility model, structure is simple, easy for installation, and by condensed water 4 directly contact it is cold
Matchmaker's main pipeline 25, reduces loss of refrigeration capacity, utilizes the cooling capacity in condensed water 4 more fully.
In some preferred embodiments, the relative position exported by setting 4 entrance of condensed water and condensed water 4, so that
Flow direction of the condensed water 4 in heat exchange pipeline section 260 is opposite with flow direction of the refrigerant 3 in cold medium main pipe road 25.Condensed water 4
Heat exchange efficiency can be enhanced with 3 convection current of refrigerant, be conducive to the degree of supercooling for preferably promoting refrigerant 3.
It is understood that the heat exchange pipeline section in supercooling apparatus may be arranged as other structures form, such as can incite somebody to action
Pipe hot pipe section can also promote the degree of supercooling of refrigerant with cold medium main pipe road and with being closely arranged.
In some preferred embodiments, supercooling apparatus 26 is threaded a pipe including condensation flow, which threads a pipe packet
Heat exchange pipeline section 260 and conveying pipeline section 261 are included, conveying pipeline section 261 is connected between the entrance and drip tray of heat exchange pipeline section 260.This
Embodiment is because by taking multi-gang air-conditioner as an example, therefore conveying pipeline section 261 includes conveying main leg 2610 and delivery branch pipe section 2611.Ginseng
According to Fig. 1, each indoor unit is each equipped with drip tray in indoor units 1, and each drip tray is connected with delivery branch pipe section 2611, each defeated
It is concentrated to conveying main leg 2610 after sending branch pipeline section 2611 to converge the condensed water 4 in corresponding drip tray, conveys main leg
2610 are connected on 4 entrance of condensed water of heat exchange pipeline section 260, so that condensed water 4 is delivered in heat exchange pipeline section 260.
Further, it is all made of cold insulation tubing for making the material of conveying pipeline section 261 and the pipeline section 260 that exchanges heat, or at least
One of pipeline section uses cold insulation tubing, is avoided that in 4 transmission process of condensed water and/or occurs in heat transfer process with air in this way
Heat exchange, to avoid loss of refrigeration capacity.
When condensed water 4 sufficiently release it is cold after, it further includes draining pipeline section for condensed water 4 to be discharged that condensation flow, which is threaded a pipe,
262, draining pipeline section 262 is connected to the outlet of heat exchange pipeline section 260.Pipeline section 262 is drained because of no cold insulation demand, therefore is used commonly
Plastic tube.
In some preferred embodiments, it is also connected with valve in conveying pipeline section 261 and/or draining pipeline section 262, for controlling
The on-off for condensate 4 of freezing.At air conditioner refrigerating initial stage, since the water of condensed water 4 is limited, to guarantee better heat transfer effect, need
Drainage pipeline is turned off for the time being by control valve, store a certain amount of condensed water 4 in heat exchange pipeline section 260.In addition, when needing
When extending retention time of the condensed water 4 in the pipeline section 260 that exchanges heat, drainage pipeline and delivery pipe can also be turned off by control valve
Road makes condensed water 4 be trapped in a period of time in heat exchange pipeline section 260, to extend heat-exchange time, sufficiently in release condensed water 4
Cooling capacity.
In some preferred embodiments, the height of drip tray is greater than the height of heat exchange pipeline section 260.Specifically, drip tray
It is arranged in machine indoors, is specifically located at the lower section of evaporator.Heat exchange pipeline section 260 is arranged in outdoor unit 2, specifically
It is connected to the end of condenser 24.Since indoor unit has multiple, during the installation process, guarantee the minimum indoor unit in position
Height is higher than the height of outdoor unit 2, in this way, the condensed water 4 in indoor unit only under the effect of gravity can be by conveying pipeline section 261
It is delivered in heat exchange pipeline section 260, it is at low cost without using other power devices, and be not easy to break down.
It is the pressure enthalpy schematic diagram of refrigerant 3 referring to Fig. 4, Fig. 4.In figure, t1With q respectively by condensed water 4 to refrigerant 3 into
The refrigerant temperature and refrigerating capacity of row supercooling, t2It is respectively to pass through the refrigerant temperature after refrigerant 3 is subcooled in condensed water 4 with △ q
With increased refrigerating capacity, W is system power dissipation.It can be seen that after being exchanged heat using low temperature cold condensate 4 and refrigerant 3, refrigerant 3
Degree of supercooling increases △ t=t2-t1, cooling system amount increase △ q, cooling system power consumption W is constant, cooling system coefficient ε=(q+ △
Q)/W becomes larger, and the refrigerating efficiency of air-conditioning has very big promotion.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the utility model, still, this
Field technical staff is it is easily understood that the protection scope of the utility model is expressly not limited to these specific embodiments.?
Under the premise of the principles of the present invention, those skilled in the art can make equivalent change to the relevant technologies feature
Or replacement, the technical solution after these changes or replacement are fallen within the protection scope of the utility model.
Claims (10)
1. a kind of idle call supercooling apparatus, the air-conditioning includes condenser and drip tray, and the outlet of the condenser is connected with cold
Matchmaker's main pipeline, the drip tray are used to collect the condensed water generated during air conditioner refrigerating,
It is characterized in that, the supercooling apparatus includes that condensation flow is threaded a pipe, the condensation flow is threaded a pipe including the pipeline section that exchanges heat,
The heat exchange pipeline section is arranged to make the refrigerant in the condensed water and the cold medium main pipe road to exchange heat, to promote the refrigerant
Degree of supercooling.
2. idle call supercooling apparatus according to claim 1, which is characterized in that the heat exchange pipeline section is set in the refrigerant
The periphery of main pipeline, the space between the inner wall of the heat exchange pipeline section and the outside wall surface in the cold medium main pipe road is for described in confession
Condensed water circulation.
3. idle call supercooling apparatus according to claim 2, which is characterized in that the condensed water is in the heat exchange pipeline section
Flow direction it is opposite with flow direction of the refrigerant in the cold medium main pipe road.
4. idle call supercooling apparatus according to claim 1, which is characterized in that it further includes defeated that the condensation flow, which is threaded a pipe,
Pipeline section is sent, the conveying pipeline section is connected between the entrance and the drip tray of the heat exchange pipeline section.
5. idle call supercooling apparatus according to claim 4, which is characterized in that it further includes row that the condensation flow, which is threaded a pipe,
Water pipe section, the draining pipeline section are connected to the outlet of the heat exchange pipeline section.
6. idle call supercooling apparatus according to claim 5, which is characterized in that the conveying pipeline section and/or the draining
Pipeline section is also connected with valve.
7. idle call supercooling apparatus according to claim 4, which is characterized in that the heat exchange pipeline section and/or the conveying
Pipeline section uses cold insulation tubing.
8. idle call supercooling apparatus described in any one of -7 according to claim 1, which is characterized in that the height of the drip tray
Greater than the height of the heat exchange pipeline section.
9. a kind of air-conditioning, which is characterized in that including idle call supercooling apparatus of any of claims 1-8.
10. air-conditioning according to claim 9, which is characterized in that the air-conditioning includes outdoor unit and at least one indoor unit,
The condenser and the heat exchange pipeline section are arranged in the outdoor unit, and the drip tray is arranged in the indoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000629.2U CN209399616U (en) | 2018-11-30 | 2018-11-30 | Idle call supercooling apparatus and air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822000629.2U CN209399616U (en) | 2018-11-30 | 2018-11-30 | Idle call supercooling apparatus and air-conditioning |
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| Publication Number | Publication Date |
|---|---|
| CN209399616U true CN209399616U (en) | 2019-09-17 |
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ID=67881363
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373644A (en) * | 2018-11-30 | 2019-02-22 | 青岛海尔空调电子有限公司 | Idle call supercooling apparatus and air-conditioning |
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2018
- 2018-11-30 CN CN201822000629.2U patent/CN209399616U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373644A (en) * | 2018-11-30 | 2019-02-22 | 青岛海尔空调电子有限公司 | Idle call supercooling apparatus and air-conditioning |
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