CN206695267U - Return-air tubular construction, air-conditioning double-compressor system and air conditioner - Google Patents
Return-air tubular construction, air-conditioning double-compressor system and air conditioner Download PDFInfo
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- CN206695267U CN206695267U CN201720387791.7U CN201720387791U CN206695267U CN 206695267 U CN206695267 U CN 206695267U CN 201720387791 U CN201720387791 U CN 201720387791U CN 206695267 U CN206695267 U CN 206695267U
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Abstract
The utility model discloses a kind of return-air tubular construction, air-conditioning double-compressor system and air conditioner, wherein, the return-air tubular construction includes：First air-returning pipe component, including the first shock absorbing pipe and the first muffler mutually concatenated, the free end of first shock absorbing pipe is used for the first compressor for connecting air-conditioning double-compressor system, and the free end of the first muffler is used for the gas-liquid separator for connecting air-conditioning double-compressor system；Second air-returning pipe component, including the second shock absorbing pipe and the second muffler mutually concatenated, the free end of the second shock absorbing pipe are used for the second compressor for connecting air-conditioning double-compressor system, and the free end of the second muffler is used to connect gas-liquid separator；And shock-damping connector, there is two through hole；The two through hole of shock-damping connector is socketed the first muffler respectively and the outer peripheral face of the second muffler is set.The vibration of return-air tubular construction when technical solutions of the utility model can reduce compressor operating, so as to reduce the running noises of compressor assembly, lift Consumer's Experience.
Description
Technical field
Air-conditioning products technical field is the utility model is related to, more particularly to a kind of return-air tubular construction, air-conditioning double-compressor system
System and air conditioner.
Background technology
Existing a kind of low temperature heat-flash multi-connected machine, in order to lift the heating effect of complete machine at low ambient temperatures, by compressor
Running frequency improve (for example allowing compressor to be operated above in 130HZ), compressor when operating in a high frequency, double compressor system
Return-air tubular construction produces vibration because refrigerant impacts, and easily produces discontinuous low-frequency beat together with blower fan system and shake sound, this
Kind noise can have a strong impact on people's work and rest.
Utility model content
Main purpose of the present utility model is to propose a kind of return-air tubular construction, it is intended to it is more to solve low temperature heat-flash in the prior art
For online compressor when high frequency is run, muffler structural vibration is strong, then produces the technical problem of larger noise.
To achieve the above object, the utility model proposes return-air tubular construction, including：
First air-returning pipe component, including the first shock absorbing pipe and the first muffler mutually concatenated, first shock absorbing pipe
Free end is used for the first compressor for connecting the air-conditioning double-compressor system, and the free end of first muffler is used to connect
The gas-liquid separator on front side of first compressor of the air-conditioning double-compressor system；
Second air-returning pipe component, including the second shock absorbing pipe and the second muffler mutually concatenated, second shock absorbing pipe
Free end is used for the second compressor on the right side of first compressor for connecting the air-conditioning double-compressor system, and described the
The free end of two mufflers is used to connect the gas-liquid separator；And
Shock-damping connector, there is two through hole；The two through hole of the shock-damping connector be socketed respectively first muffler and
The outer peripheral face of second muffler is set.
Preferably, the shock-damping connector is communicated with the installation gap of the through hole.
Preferably, the shock-damping connector is made up of elastomeric material.
Preferably, first muffler includes the first straight length, the first bend loss and the second straight length；Described first
Straight length one end is connected to first shock absorbing pipe, the other end extends towards right front and is connected to the one of first bend loss
End, the other end of first bend loss extends forward, and is connected to second straight length, and second straight length is used to connect
Lead to the gas-liquid separator.
Preferably, second muffler includes the 4th straight length, the second bend loss and the 5th straight length；
Described 4th straight length one end is connected to second shock absorbing pipe, the other end extends towards left front and it is described to be connected to
One end of second bend loss, the other end of second bend loss extend and are connected to the 5th straight length forward, and described
Five straight lengths are used to connect the gas-liquid separator.
Preferably, the angle of first straight length and the second straight length is α, 120 ° of 180 ° of ＜ α ＜；4th straight tube
The angle of section and the 5th straight length is β, 120 ° of 180 ° of ＜ β ＜.
Preferably, the return-air tubular construction also includes return-air house steward and a three-port structure, and first muffler also includes
3rd straight length and the 3rd bend loss, second muffler also include the 6th straight length and the 4th bend loss；
Described 3rd bend loss one end is connected to the front end of second straight length, and the other end extends and connected described down
3rd straight length；Described 4th bend loss one end connects the front end of the 5th straight length, and the other end extends and connects institute down
State the 6th straight length；
The bottom of 3rd straight length and the 6th straight length is connected to the return-air house steward's by the three-port structure
One end, the other end of the return-air house steward are used to connect the gas-liquid separator.
Preferably, the shock-damping connector is provided with two, and one is socketed the outer of first bend loss and the second bend loss
Side face is set, and another outer peripheral face for being socketed the 3rd bend loss and the 4th bend loss is set.
The utility model also proposes a kind of air-conditioning double-compressor system, including the first compressor, the second compressor, gas-liquid point
From device and return-air tubular construction；The return-air tubular construction includes the first air-returning pipe component, including the first shock absorbing pipe mutually concatenated and
First muffler, the free end of first shock absorbing pipe are used for the first compressor for connecting the air-conditioning double-compressor system, institute
The free end for stating the first muffler is used for the gas on front side of first compressor for connecting the air-conditioning double-compressor system
Liquid/gas separator；
Second air-returning pipe component, including the second shock absorbing pipe and the second muffler mutually concatenated, second shock absorbing pipe
Free end is used for the second compressor on the right side of first compressor for connecting the air-conditioning double-compressor system, and described the
The free end of two mufflers is used to connect the gas-liquid separator；And
Shock-damping connector, there is two through hole；The two through hole of the shock-damping connector be socketed respectively first muffler and
The outer peripheral face of second muffler is set；
For second compressor on the right side of first compressor, the gas-liquid separator is located at first compressor
With on front side of the second compressor, first air-returning pipe component connects first compressor and the gas-liquid separator, and described the
Two air-returning pipe components connect second compressor and the gas-liquid separator.
The utility model also proposes a kind of air conditioner, including air-conditioning double-compressor system, the air-conditioning double-compressor system bag
Include the first compressor, the second compressor, gas-liquid separator and return-air tubular construction；The return-air tubular construction includes the first muffler group
Part, including the first shock absorbing pipe and the first muffler mutually concatenated, the free end of first shock absorbing pipe are used to connect the sky
The first compressor of double compressor system is adjusted, the free end of first muffler is used to connect the air-conditioning double-compressor system
The gas-liquid separator on front side of first compressor；
Second air-returning pipe component, including the second shock absorbing pipe and the second muffler mutually concatenated, second shock absorbing pipe
Free end is used for the second compressor on the right side of first compressor for connecting the air-conditioning double-compressor system, and described the
The free end of two mufflers is used to connect the gas-liquid separator；And
Shock-damping connector, there is two through hole；The two through hole of the shock-damping connector be socketed respectively first muffler and
The outer peripheral face of second muffler is set；
For second compressor on the right side of first compressor, the gas-liquid separator is located at first compressor
With on front side of the second compressor, first air-returning pipe component connects first compressor and the gas-liquid separator, and described the
Two air-returning pipe components connect second compressor and the gas-liquid separator.
Technical solutions of the utility model are socketed the first muffler and the second muffler by shock-damping connector, in this way, the
In the running of one compressor and the second compressor, the impulsive force for the refrigerant that the first muffler and the second muffler are subject to one
Divide and offset by the fastening force of shock-damping connector, so as to reduce the vibration amplitude of the first muffler and the second muffler, then reduced
Vibration noise caused by air-conditioning double-compressor system, effectively improve Consumer's Experience during air conditioner operation.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the utility model air-conditioning double-compressor system one；
Fig. 2 is the structural representation of shock-damping connector in Fig. 1；
Fig. 3 is the structural representation of the part-structure of return-air structure in Fig. 1；
Fig. 4 is the schematic top plan view of the part-structure of return-air structure in Fig. 3.
Drawing reference numeral explanation：
| Label | Title | Label | Title | Label | Title |
| 1 | Return-air tubular construction | 11 | First air-returning pipe component | 111 | First shock absorbing pipe |
| 112 | First muffler | 112a | First straight length | 112b | Second straight length |
| 112c | 3rd straight length | 112d | First bend loss | 112e | 3rd bend loss |
| 12 | Second air-returning pipe component | 121 | Second shock absorbing pipe | 122 | Second muffler |
| 122a | 4th straight length | 122b | 5th straight length | 122c | 6th straight length |
| 122d | Second bend loss | 122e | 4th bend loss | 13 | Shock-damping connector |
| 131 | Through hole | 132 | Installation gap | 14 | Return-air house steward |
| 15 | Three-port structure | 2 | First compressor | 3 | Second compressor |
| 4 | Gas-liquid separator | 5 | First installing plate | 6 | Second installing plate |
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is relative between each part under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for describing purpose, and it is not intended that instruction or implying its relative importance or implicit indicating meaning
The quantity of the technical characteristic shown.Thus, " first " is defined, the feature of " second " can express or implicitly include at least one
Individual this feature.In addition, the technical scheme between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of air-conditioning double-compressor system.
Reference picture 1, the air-conditioning double-compressor system include base (not shown), the first compressor 2, the second compressor 3, gas
Liquid/gas separator 4 and return-air tubular construction 1, base are provided with the first installing plate 5 and the second installation positioned at the front side of the first installing plate 5
Plate 6, the left and right ends of the first installing plate 5 are arranged with the first compressor 2 and the second compressor 3, and gas-liquid separator 4 is located at the second peace
In loading board 6, return-air tubular construction 1 connects the first compressor 2, the second compressor 3 and gas-liquid separator 4, to realize the double pressures of air-conditioning
The return-air function of contracting machine system.
It is appreciated that when the first compressor 2 and the high-frequency of the second compressor 3 are run, refrigerant is also in return-air tubular construction 1
Accelerate to transmit, so that it easily impacts pipeline, cause return-air tubular construction 1 to vibrate, then produce larger noise, influence user's body
Test.The utility model proposes a kind of return-air tubular construction 1 to solve this problem.
In the utility model embodiment, referring to figs. 1 to Fig. 3, the return-air tubular construction includes：
First air-returning pipe component 11, including the first shock absorbing pipe 111 and the first muffler 112 mutually concatenated, the first shock-absorbing
The free end of pipe 111 connects the first compressor 2, the free end connection gas-liquid separator 4 of the first muffler 112；
Second air-returning pipe component 12, including the second shock absorbing pipe 121 and the second muffler 122 mutually concatenated, the second shock-absorbing
The free end of pipe 121 connects the second compressor 3, the free end connection gas-liquid separator 4 of the second muffler 122；And
Shock-damping connector 13, there is two through hole 131；The two through hole 131 of shock-damping connector 13 is socketed the first muffler respectively
112 and second muffler 122 outer peripheral face set.
It is appreciated that shock absorbing pipe includes bellows and the pipe joint located at bellows both ends, pipe joint is used to connect with pipeline
Connect, bellows is elastic hose, and elastic deformation can occur for stress, to assign shock absorbing pipe shock-absorbing performance.
Technical solutions of the utility model are socketed the first muffler 112 and the second muffler 122 by shock-damping connector 13, such as
This, in the running of the first compressor 2 and the second compressor 3, what the first muffler 112 and the second muffler 122 were subject to
An impulsive force part for refrigerant is offset by the fastening force of shock-damping connector 13, so as to reduce the first muffler 112 and the second return-air
The vibration amplitude of pipe 122, then vibration noise caused by reduction air-conditioning double-compressor system, is effectively improved when air conditioner is run
Consumer's Experience.
Further, reference picture 2, shock-damping connector 13 are communicated with the installation gap 132 of through hole 131.It is appreciated that such as
This is set, and the first muffler 112 and the second muffler 122 are entered in through hole 131 by the clamping of installation gap 132, effectively increased
The convenience of installation.It should be noted that the design not limited to this, in other embodiment, shock-damping connector 13 is not provided with this
Installation gap 132, the first muffler 112 and the second muffler 122 are installed by way of wearing in through hole 131.
Further, shock-damping connector 13 is made up of elastomeric material.It is appreciated that elastomeric material is extensive in the prior art
The material for being used to realize shock-absorbing function of application, is applied in the connection of the first muffler 112 and the second muffler 122, can be more
Weaken the vibration of the first muffler 112 and the second muffler 122 using its elastic effect well, so as to reduce compressor of air conditioner system
The noise of system operation.It should be noted that the design not limited to this, in other embodiment, shock-damping connector 13 also can be by gold
Category material is made.
Further, reference picture 2 and Fig. 4, the first muffler 112 include the first straight length 112a, the first bend loss 112d
And the second straight length 112b；First straight length 112a one end is connected to the first shock absorbing pipe 111, the other end extends simultaneously towards right front
The first bend loss 112d one end is connected to, the first bend loss 112d other end extends forward, and is connected to the second straight length
112b, the second straight length 112b are used to connect gas-liquid separator 4.It is appreciated that being arranged such, the first bend loss 112d can be effective
Alleviate impact of the refrigerant to the first muffler 112, the vibration of the first muffler 112 when then reducing the operation of the first compressor 2, from
And reduce noise when air-conditioning double-compressor system is run.It should be noted that the design not limited to this, in other embodiment
In, it is also extension forward that the first muffler 112, which does not include the first bend loss 112d, the first straight length 112a, is directly connected in the
Three straight length 112c.
Further, the second muffler 122 includes the 4th straight length 122a, the second bend loss 122d and the 5th straight length
122b；4th straight length 122a one end is connected to the second shock absorbing pipe 121, the other end extends towards left front and is connected to the second bend pipe
Section 122d one end, the second bend loss 122d other end extend and are connected to the 5th straight length 122b forward, the 5th straight length
122b is used to connect gas-liquid separator 4.It is appreciated that being arranged such, the second bend loss 122d can effectively alleviate refrigerant to second
The impact of muffler 122, the vibration of the second muffler 122 when then reducing the operation of the second compressor 3, so as to reduce the double pressures of air-conditioning
Noise during contracting machine system operation.It should be noted that the design not limited to this, in other embodiment, the second muffler 122
It is also extension forward not include the second bend loss 122d, the 4th straight length 122a, is directly connected in the 5th straight length 122b.
Further, reference picture 4, the first straight length 112a and the second straight length 112b angle are α, 120 ° of ＜ α ＜
180°；4th straight length 122a and the 5th straight length 122b angle is β, 120 ° of 180 ° of ＜ β ＜.In the present embodiment, 150 ° of ＜ α
180 ° of ＜, 150 ° of 180 ° of ＜ β ＜；It is appreciated that α or β are too small, refrigerant path, which is flung, hits the first bend loss 112d or the second bend loss
122d tube wall, damping effect may be bad.
Further, referring to Figures 1 and 2, return-air tubular construction 1 also includes the three-port structure 15 of return-air house steward 14 and one, and first
Muffler 112 also includes the 3rd straight length 112c and the 3rd bend loss 112e, and the second muffler 122 also includes the 6th straight length
122c and the 4th bend loss 122e；3rd bend loss 112e one end is connected to the second straight length 112b front end, and the other end is down
Extend and connect the 3rd straight length 112c；4th bend loss 122e one end connects the 5th straight length 122b front end, other end court
It is lower to extend and connect the 6th straight length 122c；3rd straight length 112c and the 6th straight length 122c bottom passes through three-port structure 15
It is connected to one end of return-air house steward 14, the other end connection gas-liquid separator 4 of return-air house steward 14.It is appreciated that be arranged such, the
Three bend loss 112e (or the 4th bend loss 122e) can effectively alleviate refrigerant to the first muffler 112 (or the second muffler
122) impact, so as to reduce noise during air-conditioning double-compressor system operation；Meanwhile by the first muffler 112 and second time
Tracheae 122 comes together in return-air house steward 14, reconnects gas-liquid separator 4, is also effectively simplified the pipeline of return-air structure.The present embodiment
In, three-port structure 15 is Y tube, and certainly, in other embodiment, three-port structure 15 also can be specially other structures, the design
This is not restricted.
Further, shock-damping connector 13 is provided with two, one socket the first bend loss 112d and the second bend loss 122d
Outer peripheral face set, the setting of another socket the 3rd bend loss 112e and the 4th bend loss 122e outer peripheral face.It is appreciated that refrigerant
It is larger in the direction of transfer change of bend loss, so that the Oscillation Amplitude of the position is larger, therefore shock-damping connector 13 is located at bend pipe
Section, can preferably suppress the vibration amplitude at bend loss, so as to reduce the vibration of return-air tubular construction 1, reduce air-conditioning double-compressor
Noise during system operation.It should be noted that in other embodiment, the also settable more than two of shock-damping connector 13, and
It is divided into the other positions of the first muffler 112 and the second muffler 122.
The utility model also proposes a kind of air conditioner, and the air conditioner includes air-conditioning double-compressor system, the double compressions of the air-conditioning
The concrete structure of machine system is with reference to above-described embodiment, because this air conditioner employs whole technical sides of above-mentioned all embodiments
Case, therefore all beneficial effects at least caused by the technical scheme with above-described embodiment, this is no longer going to repeat them.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure change under inventive concept of the present utility model, made using the utility model specification and accompanying drawing content
Change, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
- A kind of 1. return-air tubular construction, for air-conditioning double-compressor system, it is characterised in that including：First air-returning pipe component, including the first shock absorbing pipe and the first muffler mutually concatenated, the freedom of first shock absorbing pipe Hold the first compressor for connecting the air-conditioning double-compressor system, the free end of first muffler is used to connecting described The gas-liquid separator on front side of first compressor of air-conditioning double-compressor system；Second air-returning pipe component, including the second shock absorbing pipe and the second muffler mutually concatenated, the freedom of second shock absorbing pipe Hold the second compressor on the right side of first compressor for connecting the air-conditioning double-compressor system, described second time The free end of tracheae is used to connect the gas-liquid separator；AndShock-damping connector, there is two through hole；The two through hole of the shock-damping connector is socketed first muffler and second respectively The outer peripheral face of muffler is set.
- 2. return-air tubular construction as claimed in claim 1, it is characterised in that the shock-damping connector is communicated with the through hole Installation gap.
- 3. return-air tubular construction as claimed in claim 1, it is characterised in that the shock-damping connector is made up of elastomeric material.
- 4. the return-air tubular construction as described in claims 1 to 3 any one, it is characterised in that first muffler includes the One straight length, the first bend loss and the second straight length；Described first straight length one end is connected to first shock absorbing pipe, the other end extends towards right front and is connected to described One end of one bend loss, the other end of first bend loss extend forward, and are connected to second straight length, and described second Straight length is used to connect the gas-liquid separator.
- 5. return-air tubular construction as claimed in claim 4, it is characterised in that second muffler includes the 4th straight length, the Two bend loss and the 5th straight length；Described 4th straight length one end is connected to second shock absorbing pipe, the other end extends towards left front and is connected to described second One end of bend loss, the other end of second bend loss extend and are connected to the 5th straight length forward, and the described 5th is straight Pipeline section is used to connect the gas-liquid separator.
- 6. return-air tubular construction as claimed in claim 5, it is characterised in that the angle of first straight length and the second straight length For α, 120 ° of 180 ° of ＜ α ＜；The angle of 4th straight length and the 5th straight length is β, 120 ° of 180 ° of ＜ β ＜.
- 7. return-air tubular construction as claimed in claim 5, it is characterised in that the return-air tubular construction also includes return-air house steward and one Three-port structure, first muffler also include the 3rd straight length and the 3rd bend loss, and second muffler also includes the 6th Straight length and the 4th bend loss；Described 3rd bend loss one end is connected to the front end of second straight length, and the other end extends and connects the described 3rd down Straight length；Described 4th bend loss one end connects the front end of the 5th straight length, and the other end extends and connects described the down Six straight lengths；The bottom of 3rd straight length and the 6th straight length is connected to one end of the return-air house steward by the three-port structure, The other end of the return-air house steward is used to connect the gas-liquid separator.
- 8. return-air tubular construction as claimed in claim 7, it is characterised in that the shock-damping connector is provided with two, one socket The outer peripheral face of first bend loss and the second bend loss is set, another to be socketed the outer of the 3rd bend loss and the 4th bend loss Side face is set.
- A kind of 9. air-conditioning double-compressor system, it is characterised in that including the first compressor, the second compressor, gas-liquid separator with And the return-air tubular construction as described in claim 1 to 8 any one；Second compressor is right located at first compressor Side, for the gas-liquid separator on front side of first compressor and the second compressor, first air-returning pipe component connects institute The first compressor and the gas-liquid separator are stated, second air-returning pipe component connects second compressor and the gas-liquid point From device.
- 10. a kind of air conditioner, it is characterised in that including the air-conditioning double-compressor system described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720387791.7U CN206695267U (en) | 2017-04-13 | 2017-04-13 | Return-air tubular construction, air-conditioning double-compressor system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720387791.7U CN206695267U (en) | 2017-04-13 | 2017-04-13 | Return-air tubular construction, air-conditioning double-compressor system and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206695267U true CN206695267U (en) | 2017-12-01 |
Family
ID=60444409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720387791.7U Active CN206695267U (en) | 2017-04-13 | 2017-04-13 | Return-air tubular construction, air-conditioning double-compressor system and air conditioner |
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| CN (1) | CN206695267U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553424A (en) * | 2019-09-27 | 2019-12-10 | 海信（广东）空调有限公司 | Air conditioner |
| WO2020078002A1 (en) * | 2018-10-19 | 2020-04-23 | 青岛海尔空调电子有限公司 | Copper pipe fixing device and air conditioner outdoor unit having same |
| CN112229112A (en) * | 2020-11-18 | 2021-01-15 | 珠海格力电器股份有限公司 | Gas-liquid separator and air conditioner |
| CN112856840A (en) * | 2019-11-28 | 2021-05-28 | 中车沈阳机车车辆有限公司 | Refrigerating unit and refrigerator car |
-
2017
- 2017-04-13 CN CN201720387791.7U patent/CN206695267U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020078002A1 (en) * | 2018-10-19 | 2020-04-23 | 青岛海尔空调电子有限公司 | Copper pipe fixing device and air conditioner outdoor unit having same |
| CN110553424A (en) * | 2019-09-27 | 2019-12-10 | 海信（广东）空调有限公司 | Air conditioner |
| CN112856840A (en) * | 2019-11-28 | 2021-05-28 | 中车沈阳机车车辆有限公司 | Refrigerating unit and refrigerator car |
| CN112229112A (en) * | 2020-11-18 | 2021-01-15 | 珠海格力电器股份有限公司 | Gas-liquid separator and air conditioner |
| CN112229112B (en) * | 2020-11-18 | 2021-11-09 | 珠海格力电器股份有限公司 | Gas-liquid separator and air conditioner |
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