CN218721985U - Cooling system and air conditioning unit - Google Patents

Cooling system and air conditioning unit Download PDF

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Publication number
CN218721985U
CN218721985U CN202222995991.4U CN202222995991U CN218721985U CN 218721985 U CN218721985 U CN 218721985U CN 202222995991 U CN202222995991 U CN 202222995991U CN 218721985 U CN218721985 U CN 218721985U
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China
Prior art keywords
liquid cooling
throttling element
liquid
compressor
refrigerant
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CN202222995991.4U
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Chinese (zh)
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梁湖
黄成武
周宇
钟瑞兴
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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Abstract

The utility model discloses a cooling system and air conditioning unit relates to air conditioner technical field. The cooling system comprises an indoor heat exchanger, a compressor, an outdoor heat exchanger, a first throttling element and a liquid cooling cavity, wherein the indoor heat exchanger, the compressor, the outdoor heat exchanger and the first throttling element are sequentially connected through pipelines; the first outlet of the liquid cooling cavity is connected to an air inlet of the compressor or the indoor heat exchanger and used for discharging gaseous refrigerants after heat exchange; the liquid cooling cavity is provided with a pressure detection piece for detecting the pressure of a refrigerant in the liquid cooling cavity, the inlet of the liquid cooling cavity is provided with a second throttling element, the first outlet of the liquid cooling cavity is provided with a third throttling element, and the second throttling element and the third throttling element can adjust the opening degree according to the detection result of the pressure detection piece so as to enable the refrigerant in the liquid cooling cavity to be at the preset saturation temperature. The problem of condensation caused by throttling and cooling by using a refrigerant is avoided.

Description

Cooling system and air conditioning unit
Technical Field
The utility model relates to an air conditioning technology field, in particular to cooling system and air conditioning unit.
Background
The integrated centrifugal compressor integrates the frequency converter into the compressor, the space of the airborne frequency converter is saved, the unit structure is more compact, the size is smaller, and the integrated compressor is the first-choice scheme of the modular unit.
On the integrated compressor, the IGBT, the switching power supply, the electric capacity of motor, converter etc. belong to the device that generates heat, and these devices high temperature can lead to each device to fall the appearance, causes the unable normal use of trouble even, for guaranteeing the normal reliable operation of compressor, need carry out thermal management control to the compressor. The cooling scheme that uses commonly at present is that get the high pressure from the unit condenser, the refrigerant liquid of high temperature, be used for the cooling of above-mentioned device after the throttle cooling, then the lower position of pressure on the refrigerant progress unit, this scheme cooling capacity is big, can ensure to cool fully, the problem of device overtemperature has been avoided, but because the refrigerant temperature after the throttle is lower, during the lower refrigerant entering compressor cooling structure of temperature, can lead to cooling structure surface temperature lower, when cooling structure ambient temperature is higher relatively and humidity is great, the condition of condensation can appear, there is the condensation water on the electrical part, can lead to the compressor often to break down, unable normal work, arouse the device short circuit even and burn out serious problem.
How to avoid the condensation problem caused by throttling and cooling by using a refrigerant becomes a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cooling system and air conditioning unit aims at avoiding using the condensation problem that refrigerant throttle cooling brought.
In order to achieve the above object, the present invention provides a cooling system, which includes an indoor heat exchanger, a compressor, an outdoor heat exchanger, and a first throttling element connected in sequence via a pipeline, and further includes a liquid cooling chamber for cooling the compressor, wherein an inlet of the liquid cooling chamber is connected to the pipeline between the first throttling element and the outdoor heat exchanger, and is used for inputting a liquid refrigerant; the first outlet of the liquid cooling cavity is connected to an air inlet of the compressor or the indoor heat exchanger and used for discharging gaseous refrigerants after heat exchange; the liquid cooling device is characterized in that a pressure detection piece for detecting the pressure of a refrigerant in the liquid cooling cavity is arranged on the liquid cooling cavity, a second throttling element is arranged at an inlet of the liquid cooling cavity, a third throttling element is arranged at a first outlet of the liquid cooling cavity, and the opening degree of the second throttling element and the opening degree of the third throttling element can be adjusted according to the detection result of the pressure detection piece, so that the refrigerant in the liquid cooling cavity is at a preset saturation temperature.
In an embodiment of the present application, the method further includes:
and the heat pipe is connected to the compressor, is positioned in the liquid cooling cavity and is used for conducting heat exchange between the heat generated by the compressor and a refrigerant in the liquid cooling cavity after being led out.
In an embodiment of the present application, the method further includes:
and the cold plate is arranged between the compressor and the heat pipe and used for fixing the heat pipe.
In an embodiment of the application, a second outlet for leading out a liquid refrigerant is further disposed on the liquid cooling cavity, and a fourth throttling element for adjusting an opening degree according to a detection result of the pressure detection part is disposed on the second outlet so that the refrigerant in the liquid cooling cavity is in a saturated state.
In an embodiment of the application, the level of the inlet is smaller than the level of the second outlet, which is smaller than the level of the first outlet.
In an embodiment of the application, liquid level detection spare that detects the liquid level height still is equipped with in the liquid cooling intracavity.
The application also discloses an air conditioning unit, which adopts the cooling system.
By adopting the technical scheme, the branch is arranged on the refrigerant circulation loop, the liquid cooling cavity is connected on the branch, the liquid cooling cavity is connected with the compressor, the liquid cooling cavity is adjusted in saturation temperature of the liquid refrigerant by utilizing the isothermal characteristic when the liquid cooling cavity is connected with the compressor and adjusting the pressure in the liquid cooling cavity, so that the compressor is kept at a proper operation temperature, and surface condensation of the compressor is avoided. Simple structure and convenient implementation.
Drawings
The invention will be described in detail with reference to the following embodiments and the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic flow structure diagram of the control method.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is described in detail with reference to the accompanying drawings and embodiments. It should be understood that the following specific examples are only for illustrating the present invention and are not to be construed as limiting the present invention.
As shown in fig. 1 to fig. 2, in order to achieve the above object, the present invention provides a cooling system, which includes an indoor heat exchanger 19, a compressor 20, an outdoor heat exchanger 18, and a first throttling element 21, which are sequentially connected through a pipeline, and further includes a liquid cooling chamber 10 for cooling the compressor 20, wherein an inlet of the liquid cooling chamber 10 is connected to the pipeline between the first throttling element 21 and the outdoor heat exchanger 18, and is used for inputting a liquid refrigerant; a first outlet of the liquid cooling cavity 10 is connected to an air inlet of the compressor 20 or the indoor heat exchanger 19, and is used for discharging gaseous refrigerant after heat exchange; the liquid cooling device is characterized in that a pressure detection part 16 for detecting the pressure of a refrigerant in the liquid cooling cavity 10 is arranged on the liquid cooling cavity 10, a second throttling element 11 is arranged at an inlet of the liquid cooling cavity 10, a third throttling element 12 is arranged at a first outlet of the liquid cooling cavity 10, and the second throttling element 11 and the third throttling element 12 can adjust the opening degree according to the detection result of the pressure detection part 16, so that the refrigerant in the liquid cooling cavity 10 is at a preset saturation temperature.
Specifically, the utility model provides a cooling system, including indoor heat exchanger 19, compressor 20, outdoor heat exchanger 18, first throttling element 21, liquid cooling chamber 10, second throttling element 11, third throttling element 12 and pressure measurement 16.
Indoor heat exchanger 19 adopts the heat exchanger commonly used among the prior art, in the middle of this application, owing to need introduce the liquid refrigerant of high temperature from outdoor heat exchanger 18, consequently indoor heat exchanger 19 uses as the evaporimeter in this application.
The outdoor heat exchanger 18 is a heat exchanger commonly used in the prior art, and in the present application, since a high-temperature liquid refrigerant needs to be introduced from the outdoor heat exchanger 18, the outdoor heat exchanger 18 is used as a condenser in the present application.
The compressor 20 is a centrifugal compressor 20 commonly used in the prior art, and the centrifugal compressor 20 has the advantages of large air flow, simple and compact structure, light weight, small unit size, small occupied area and the like.
The first throttling element 21 is a throttling element commonly used in the prior art, and as it is the prior art, it is not described in detail herein.
The first throttling element 21, the outdoor heat exchanger 18, the compressor 20, and the indoor heat exchanger 19 constitute a refrigerant circulation circuit.
The liquid cooling chamber 10 is a chamber isolated from an external space and storing a liquid refrigerant therein. The liquid-cooling chamber 10 is connected to the compressor 20 for cooling the compressor 20. The working principle is as follows: the compressor 20 generates heat, the generated heat is transferred to the liquid cooling chamber 10, and the liquid refrigerant inside the liquid cooling chamber 10 is heated and then converted into a gaseous refrigerant. Thereby achieving cooling of the compressor 20.
An inlet of the liquid cooling chamber 10 is connected to a pipe between the first throttling element 21 and the outdoor heat exchanger 18, so that liquid refrigerant inside the outdoor heat exchanger 18 can be introduced into the liquid cooling chamber 10. The liquid-cooling chamber 10 is connected to a pipe between the first throttling element 21 and the outdoor heat exchanger 18 through a pipe.
The first outlet of the liquid cooling chamber 10 is used for discharging a gaseous refrigerant, which is generated after the liquid refrigerant is vaporized, thereby absorbing heat of the compressor 20. The first outlet of the liquid cooling chamber 10 is directly connected to the air inlet of the compressor 20 or the inlet of the indoor heat exchanger 19, and when the first outlet of the liquid cooling chamber 10 is directly connected to the compressor 20, the air intake compensation of the compressor 20 is realized; when the first outlet of the liquid cooling chamber 10 is directly connected to the indoor heat exchanger 19, the gaseous refrigerant and the indoor air exchange heat again, and the heat absorption efficiency of the refrigerant is improved.
The pressure detection part 16 is a pressure detection part 16 commonly used in the prior art, the pressure detection part 16 is used for detecting the pressure in the liquid cooling cavity 10, and the saturation temperature of the refrigerant can be controlled by changing the pressure due to the correlation between the vaporization temperature and the pressure of the refrigerant.
The second throttling element 11 is arranged at the inlet of the liquid cooling chamber 10, and the second throttling element 11 is the same as the first throttling element 21, so that the same advantages and properties are achieved, and the description is omitted. The second throttling element 11 is used to open or close the inlet of the liquid-cooled chamber 10.
A third throttling element 12 is arranged at the first outlet of the liquid cooling chamber 10, and the third throttling element 12 is the same as the first throttling element 21, so that the same advantages and properties are achieved, and the description is omitted. The third throttling element 12 is used to open or close the first outlet of the liquid-cooled chamber 10.
The second throttling element 11 and the third throttling element 12 adjust the opening degree according to the detection result of the pressure detection part 16, so that the refrigerant in the liquid cooling cavity 10 is in a saturated state, wherein the saturated state in the application refers to a critical value of changing the liquid refrigerant into the gaseous refrigerant.
For example: when the pressure in the liquid cooling chamber 10 is smaller than the preset threshold, the opening degree of the second throttling element 11 is increased, and the opening degree of the third throttling element 12 is decreased, so that the pressure in the liquid cooling chamber 10 is increased by approximately preset parameters, and the vaporization temperature of the refrigerant is increased.
When the pressure in the liquid cooling chamber 10 is greater than the preset parameter, the opening degree of the second throttling element 11 is decreased, the opening degree of the third throttling element 12 is increased, the pressure in the liquid cooling chamber 10 is decreased to the preset parameter, and therefore the vaporization temperature of the refrigerant is reduced
Because the liquid cooling cavity 10 is connected with the compressor 20, the temperature of the compressor 20 is equal to the temperature of the liquid refrigerant by utilizing the isothermal characteristic when the compressor 20 is connected with the liquid cooling cavity 10, the adjustment of the working temperature of the compressor 20 is realized by adjusting the saturation temperature of the liquid refrigerant, the compressor 20 can be always kept at the proper operating temperature, and therefore surface condensation on the compressor 20 is avoided.
By adopting the technical scheme, the branch is arranged on the refrigerant circulation loop, the liquid cooling cavity 10 is connected on the branch, the liquid cooling cavity 10 is connected with the compressor 20, and the saturation temperature of the liquid refrigerant is adjusted by adjusting the pressure in the liquid cooling cavity 10 by utilizing the isothermal characteristic when the liquid cooling cavity 10 is connected with the compressor 20, so that the compressor 20 is kept at a proper operation temperature, and the surface condensation of the compressor 20 is avoided. Simple structure and convenient implementation.
In an embodiment of the present application, the method further includes:
and the heat pipe 15 is connected to the compressor 20, is positioned in the liquid cooling cavity 10, and is used for conducting heat generated by the compressor 20 out and then exchanging heat with a refrigerant in the liquid cooling cavity 10.
Specifically, the cooling system further includes a heat pipe 15.
The heat pipe 15 is made of metal materials, and the heat pipe 15 made of metal materials has the advantages of strong supporting capacity, wear resistance, good heat-conducting property and the like. The heat pipe 15 is connected to the compressor 20, and the heat pipe 15 and the compressor 20 are connected by a fixed connection, such as welding. The heat pipe 15 is connected with the compressor 20 in a fixed connection mode, so that the connection strength between the heat pipe 15 and the compressor 20 can be improved, and the stability of the heat pipe 15 in working is ensured. Of course, the heat pipe 15 and the compressor 20 may be detachably connected, such as by bolts, screws, etc., according to the design requirement. The heat pipe 15 is detachably connected with the compressor 20, so that the heat pipe 15 can be conveniently mounted and dismounted, and later maintenance is facilitated.
The heat pipe 15 is located in the liquid cooling chamber 10, heat generated by the compressor 20 is conducted to the heat pipe 15, and the heat pipe 15 exchanges heat with a refrigerant in the liquid cooling chamber 10, so that the heat of the compressor 20 is exchanged with the refrigerant. Cooling of the compressor 20 is achieved. Because the heat pipe 15 is directly inserted into the liquid cooling cavity 10, the temperature of the heat pipe 15 is equal to the temperature of the refrigerant, and at the same time, the temperature of the heat pipe 15 is equal to the temperature of the compressor 20, so that the refrigerant is adjusted to be kept at a proper saturation temperature, the compressor 20 can be kept at a proper temperature, and condensation on the compressor 20 is avoided.
By adopting the technical scheme, the heat conduction of the compressor 20 is realized by arranging the heat pipe 15, so that the position between the compressor 20 and the liquid cooling cavity 10 is convenient to fix, the structure is simple, and the implementation is convenient.
In an embodiment of the present application, the method further includes:
and the cold plate 14 is arranged between the compressor 20 and the heat pipe 15 and used for fixing the heat pipe 15.
Specifically, the cooling system further comprises a cold plate 14 made of a metal material, and the cold plate 14 made of the metal material has the advantages of strong supporting capability, good heat-conducting property and the like.
The cold plate 14 is disposed between the compressor 20 and the heat pipe 15 for effecting heat transfer between the compressor 20 and the heat pipe 15. The cold plate 14 and the compressor 20 may be fixedly connected, such as by welding. The cold plate 14 is connected with the compressor 20 in a fixed connection manner, so that the connection strength between the cold plate 14 and the compressor 20 can be improved, and the stability of the cold plate 14 during operation can be ensured. Of course, the cold plate 14 and the compressor 20 may be detachably connected, such as by screws, bolts, etc., as desired. The cold plate 14 is detachably connected with the compressor 20, so that the cold plate 14 can be conveniently mounted and dismounted, and later maintenance is facilitated.
The cold plate 14 and the heat pipe 15 are connected by a fixed connection method, such as welding, and the connection is performed by a fixed connection method, so that the connection strength between the heat pipe 15 and the cold plate 14 can be improved, and the stability of the heat pipe 15 during operation can be ensured. Certainly according to the needs of design, can also adopt the detachable mode to be connected between cold plate 14 and the heat pipe 15, adopt the detachable mode to connect, can make things convenient for the installation and the dismantlement of heat pipe 15, the maintenance of the later stage of being convenient for.
When the number of the heat pipes 15 is plural, the plural heat pipes 15 are installed in parallel on the cold plate 14, thereby improving the heat exchange efficiency between the compressor 20 and the refrigerant.
By adopting the technical scheme, the structure is simple and the implementation is convenient.
In an embodiment of the present application, the liquid cooling chamber 10 is further provided with a second outlet for guiding out a liquid refrigerant, and the second outlet is provided with a fourth throttling element 13 for adjusting an opening degree according to a detection result of the pressure detecting element 16, so that the refrigerant in the liquid cooling chamber 10 is in a saturated state.
Specifically, the liquid cooling chamber 10 is further provided with a second outlet, and the second outlet is used for leading out the liquid refrigerant. The second outlet is provided with a fourth throttling element 13, and the fourth throttling element 13 has the same structure as the first throttling element 21, so that the fourth throttling element 13 has the same advantages and properties, and the description is omitted. The fourth throttling element 13 can adjust the opening thereof according to the detection result of the pressure detecting element 16, so that the refrigerant in the liquid cooling chamber 10 is at a preset saturation temperature.
By adopting the technical scheme, the liquid cooling chamber 10 is provided with the second outlet, so that the liquid refrigerant in the liquid cooling chamber 10 can be conveniently discharged, the pressure in the liquid cooling chamber 10 can be further conveniently adjusted, the structure is simple, and the implementation is convenient.
In an embodiment of the application, the level of the inlet is smaller than the level of the second outlet, which is smaller than the level of the first outlet.
Specifically, the level of the inlet of the liquid cooling chamber 10 is smaller than the level of the second outlet, which is smaller than the level of the first outlet.
As can be seen from the above, the inlet of the refrigerant is the lowest, so that the liquid refrigerant can be ensured to stably enter the liquid cooling chamber 10. The second outlet is used for discharging the liquid refrigerant, and the second outlet is higher than the inlet of the liquid cooling cavity 10, so that the liquid refrigerant in the liquid cooling cavity 10 is prevented from being completely discharged. The horizontal height of the first outlet is higher than that of the second outlet, so that the refrigerant discharged from the first outlet is ensured to be gaseous refrigerant all the time. Thereby ensuring the safety of the whole cooling system, avoiding the air suction and liquid entrainment of the compressor 20 and improving the stability and the safety of the compressor 20 during the operation.
By adopting the technical scheme, the structure is simple and the implementation is convenient.
In an embodiment of the present application, a liquid level detecting member 17 for detecting a liquid level height is further disposed in the liquid cooling chamber 10.
Specifically, a liquid level detection part 17 is further arranged in the liquid cooling cavity 10, and the liquid level detection part 17 is used for detecting the height of a liquid refrigerant in the liquid cooling cavity 10, so that the second throttling element 11 and the fourth throttling element 13 are controlled. The safety and the stability of the cooling system are improved.
The application also discloses a control method of the cooling system, which comprises the following steps:
obtaining the pressure value in the liquid cooling cavity 10;
judging whether the pressure value of the liquid cooling cavity 10 is equal to a preset value or not;
when the pressure value is not equal to the preset value, judging whether the pressure value is larger than a preset value or not;
when the pressure value is greater than a preset value, the opening degree of the second throttling element 11 is decreased, and the opening degrees of the third throttling element 12 and the fourth throttling element 13 are increased.
Specifically, the control method of the cooling system comprises the following steps:
obtain the pressure value in the liquid cooling chamber 10 earlier, after having obtained the pressure value in the liquid cooling chamber 10, judge whether the pressure value in the liquid cooling chamber 10 equals the default, the default here indicates: the pressure value corresponding to the refrigerant at the preset saturation temperature is obtained.
When the pressure value in the liquid cooling chamber 10 is not equal to the preset value, it indicates that the pressure in the liquid cooling chamber 10 is abnormal currently. At this time, whether the pressure value in the liquid cooling chamber 10 is greater than the preset value is judged, when the pressure value in the liquid cooling chamber 10 is greater than the preset value, it indicates that the pressure in the liquid cooling chamber 10 is too high, at this time, the opening degree of the second throttling element 11 is correspondingly reduced, and the opening degrees of the third throttling element 12 and the fourth throttling element 13 are increased, so that the pressure in the liquid cooling chamber 10 is reduced, and the pressure in the liquid cooling chamber 10 is equal to the preset value.
By adopting the technical scheme, the process is simple and convenient to implement.
In an embodiment of the present application, when the pressure value is smaller than a preset value, the opening degree of the second throttling element 11 is increased, and the opening degrees of the third throttling element 12 and the fourth throttling element 13 are decreased.
Specifically, when the pressure value in the liquid cooling chamber 10 is smaller than the preset value, it indicates that the pressure in the liquid cooling chamber 10 is too low, and at this time, the opening degree of the second throttling element 11 is correspondingly increased, so that more liquid refrigerants enter the liquid cooling chamber 10. And the opening degrees of the third throttling element 12 and the fourth throttling element 13 are reduced, so that the pressure in the liquid cooling cavity 10 is increased, and the pressure in the liquid cooling cavity 10 is ensured to be equal to a preset value. It is conceivable that the opening degrees of the second throttling element 11, the third throttling element 12, and the fourth throttling element 13 are maintained when the pressure value in the liquid cooling chamber 10 is equal to a preset value.
By adopting the technical scheme, the process is simple and convenient to implement.
In an embodiment of the present application, the method further includes:
acquiring the liquid level height in the liquid cooling cavity 10;
and judging whether the liquid level height is greater than a first preset threshold value, and when the liquid level height is greater than the first preset threshold value, reducing the opening degree of the second throttling element 11 and increasing the opening degree of the fourth throttling element 13.
Specifically, the method further comprises the steps of obtaining the liquid level height in the liquid cooling cavity 10;
and judging whether the liquid level height is greater than a first preset threshold value, when the liquid level height is greater than the first preset threshold value, indicating that the liquid level in the current liquid cooling cavity 10 is higher, at the moment, reducing the opening degree of the second throttling element 11, and increasing the opening degree of the fourth throttling element 13. Correspondingly, when the opening degree of the second throttling element 11 is decreased and the opening degree of the fourth throttling element 13 is increased, the liquid level of the liquid refrigerant in the liquid cooling chamber 10 is decreased. Thereby restoring the liquid refrigerant in the liquid cooling chamber 10 to a predetermined state.
In an embodiment of the present application, when the liquid level height is smaller than a first preset threshold, it is determined whether the liquid level height is smaller than a second preset threshold, and when the liquid level height is smaller than the second preset threshold, the opening degree of the second throttling element 11 is increased, and the opening degree of the fourth throttling element 13 is decreased.
Specifically, when the liquid level height is smaller than the first preset threshold, whether the liquid level height is smaller than the second preset threshold is further judged, and when the liquid level height is smaller than the second preset threshold, it indicates that the liquid level of the liquid refrigerant in the liquid cooling chamber 10 is lower currently, at this time, the opening degree of the second throttling element 11 is increased, and the opening degree of the fourth throttling element 13 is decreased, so that the liquid level of the liquid refrigerant in the liquid cooling chamber 10 rises, and the liquid refrigerant in the liquid cooling chamber 10 is restored to the preset state. In this application, liquid refrigerant liquid level height is between first preset threshold value and the second preset threshold value.
By adopting the technical scheme, the process is simple and convenient to implement.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all be in the utility model discloses a under the design, utilize the equivalent structure transform of what the content of the description and the attached drawing was done, or direct/indirect application all includes in other relevant technical field the utility model discloses a patent protection is within range.

Claims (7)

1. A cooling system comprises an indoor heat exchanger, a compressor, an outdoor heat exchanger and a first throttling element which are sequentially connected through pipelines, and is characterized by also comprising a liquid cooling cavity for cooling the compressor, wherein an inlet of the liquid cooling cavity is connected to the pipeline between the first throttling element and the outdoor heat exchanger and is used for inputting a liquid refrigerant; the first outlet of the liquid cooling cavity is connected to an air inlet of the compressor or the indoor heat exchanger and used for discharging gaseous refrigerants after heat exchange; the liquid cooling device is characterized in that a pressure detection piece for detecting the pressure of a refrigerant in the liquid cooling cavity is arranged on the liquid cooling cavity, a second throttling element is arranged at an inlet of the liquid cooling cavity, a third throttling element is arranged at a first outlet of the liquid cooling cavity, and the opening degree of the second throttling element and the opening degree of the third throttling element can be adjusted according to the detection result of the pressure detection piece, so that the refrigerant in the liquid cooling cavity is at a preset saturation temperature.
2. The cooling system of claim 1, further comprising:
and the heat pipe is connected to the compressor, is positioned in the liquid cooling cavity and is used for conducting heat exchange between the heat generated by the compressor and a refrigerant in the liquid cooling cavity after being led out.
3. The cooling system of claim 2, further comprising:
and the cold plate is arranged between the compressor and the heat pipe and used for fixing the heat pipe.
4. The cooling system according to claim 1, wherein the liquid cooling chamber is further provided with a second outlet for guiding out a liquid refrigerant, and the second outlet is provided with a fourth throttling element for adjusting an opening degree according to a detection result of the pressure detection member so as to enable the refrigerant in the liquid cooling chamber to be in a saturated state.
5. The cooling system of claim 4, wherein the level of the inlet is less than the level of the second outlet, which is less than the level of the first outlet.
6. The cooling system of claim 1, wherein a liquid level detecting member for detecting a liquid level is further provided in the liquid cooling chamber.
7. An air conditioning assembly, characterized in that a cooling system according to any one of claims 1 to 6 is used.
CN202222995991.4U 2022-11-10 2022-11-10 Cooling system and air conditioning unit Active CN218721985U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222995991.4U CN218721985U (en) 2022-11-10 2022-11-10 Cooling system and air conditioning unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222995991.4U CN218721985U (en) 2022-11-10 2022-11-10 Cooling system and air conditioning unit

Publications (1)

Publication Number Publication Date
CN218721985U true CN218721985U (en) 2023-03-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222995991.4U Active CN218721985U (en) 2022-11-10 2022-11-10 Cooling system and air conditioning unit

Country Status (1)

Country Link
CN (1) CN218721985U (en)

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