阅读说明：本技术 分液器、压缩机、空调器 (Liquid separator, compressor and air conditioner ) 是由 潘登 张远传 李建宾 黄振丽 赵旭敏 于 2020-12-24 设计创作，主要内容包括：本发明提供一种分液器、压缩机、空调器,其中的分液器,包括第一环壁以及处于第一环壁的径向外侧的第二环壁,第一环壁与第二环壁之间形成分液空间,分液空间中设有分隔件,将分液空间分隔为彼此独立的第一分液腔、第二分液腔,其中,第一分液腔对应第一环壁的第一壁体区域,第一壁体区域能够与压缩机的外壳进行热交换,第二分液腔对应第一环壁的第二壁体区域,第二壁体区域与压缩机的外壳之间绝热。根据本发明,通过将分液空间合理分割为相互独立的分液腔,并针对空调器的制冷与制热模式的不同将分液腔与压缩机的外壳之间进行导热或者绝热处理,可满足分液器内不同状态冷媒对压缩机本体和外部环境热量传递的不同需求。(The invention provides a liquid distributor, a compressor and an air conditioner, wherein the liquid distributor comprises a first annular wall and a second annular wall positioned on the radial outer side of the first annular wall, a liquid distribution space is formed between the first annular wall and the second annular wall, a separator is arranged in the liquid distribution space and divides the liquid distribution space into a first liquid distribution cavity and a second liquid distribution cavity which are independent from each other, the first liquid distribution cavity corresponds to a first wall body area of the first annular wall, the first wall body area can exchange heat with a shell of the compressor, the second liquid distribution cavity corresponds to a second wall body area of the first annular wall, and the second wall body area is insulated from the shell of the compressor. According to the invention, the liquid separation space is reasonably divided into the liquid separation cavities which are mutually independent, and heat conduction or heat insulation treatment is carried out between the liquid separation cavities and the shell of the compressor according to the difference of the refrigeration and heating modes of the air conditioner, so that different requirements of refrigerants in different states in the liquid separator on heat transfer of the compressor body and the external environment can be met.)

1. The liquid distributor is characterized by comprising a first annular wall (11) and a second annular wall (12) located on the radial outer side of the first annular wall (11), wherein a liquid separating space is formed between the first annular wall (11) and the second annular wall (12), a separating piece (13) is arranged in the liquid separating space and is used for separating the liquid separating space into a first liquid separating cavity (14) and a second liquid separating cavity (15) which are independent of each other, the first liquid separating cavity (14) corresponds to a first wall body area of the first annular wall (11), the first wall body area can perform heat exchange with a shell of a compressor (100), the second liquid separating cavity (15) corresponds to a second wall body area of the first annular wall (11), and the second wall body area is insulated from the shell of the compressor (100).

2. The dispenser according to claim 1, wherein the first wall region has a thermally conductive coating thereon; and/or, a thermal insulation coating at the second wall region; and/or the second annular wall (12) has a thermally insulating coating on its peripheral side.

3. The dispenser according to claim 2, wherein the heat conducting temperature of the heat conducting coating is in the range of-30 ℃ to 150 ℃; and/or the heat insulation temperature range of the heat insulation coating is-30 ℃ to 150 ℃.

4. The liquid distributor according to claim 1, wherein the upper part of the first liquid dividing chamber (14) is provided with a first inlet pipe (141), the lower part of the first liquid dividing chamber (14) is provided with a first outlet pipe (142), and a first filter element (143) is arranged between the outlet of the first inlet pipe (141) and the inlet of the first outlet pipe (142); and/or a second air inlet pipe (151) is arranged at the upper part of the second liquid dividing cavity (15), a second air outlet pipe (152) is arranged at the lower part of the second liquid dividing cavity (15), and a second filter element (153) is arranged between the air outlet of the second air inlet pipe (151) and the air inlet of the second air outlet pipe (152).

5. The liquid distributor according to claim 4, wherein the first inlet pipe (141) and the second inlet pipe (151) are combined in parallel in a main inlet pipe (16) and the main inlet pipe (16) is provided with a first three-way valve to communicate the main inlet pipe (16) with the first inlet pipe (141) or the second inlet pipe (151); and/or the first outlet pipe (142) and the second outlet pipe (152) are connected in parallel and are gathered in the total outlet pipe (17).

6. The liquid distributor according to claim 1, characterized in that, in projection on a radial plane of the liquid distributor, the first wall area corresponds to a first arc and the second wall area corresponds to a second arc, the first arc being concentric with and in contact with the casing of the compressor (100), the second arc forming a fitting gap with the casing of the compressor (100).

7. The dispenser according to claim 6, characterized in that the maximum radial thickness of the fitting clearance is δ, 2mm δ 10 mm.

8. The dispenser according to claim 1, characterized in that the first annular wall (11) and the second annular wall (12) are both circular in projection in a radial plane of the dispenser, the first annular wall (11) and the second annular wall (12) being arranged concentrically or the first annular wall (11) and the second annular wall (12) being arranged eccentrically.

9. Liquid distributor according to claim 8, characterized in that, when the first annular wall (11) and the second annular wall (12) are arranged eccentrically, the eccentricity between the first annular wall (11) and the second annular wall (12) is e, the diameter of the radially outer side of the first annular wall (11) is d, 10% d ≧ e > 0.

10. The liquid distributor according to claim 9, characterized in that the first annular wall (11) and the second annular wall (12) have the same height and are both H, the diameter of the radially outer side of the second annular wall (12) being D, 1. ltoreq. H/D. ltoreq.3; and/or the diameter of the radial outer side of the second annular wall (12) is D, D/D is more than or equal to 1 and less than or equal to 2.

11. The dispenser according to claim 1, characterized in that the first chamber (14) has a volume of Vr and the second chamber (15) has a volume of Vl, 1 ≦ Vr/Vl ≦ 20.

12. The dispenser according to claim 4, wherein the first dispensing chamber (14) includes a plurality of first subchambers (144), any two of the plurality of first subchambers (144) being selectively communicable with each other; and/or the second liquid separation cavity (15) comprises a plurality of second sub-cavities (154), and any two of the second sub-cavities (154) can be selectively communicated.

13. The liquid distributor according to claim 12, wherein the first sub-cavities (144) are respectively provided with a first inlet pipe (145) and a first outlet pipe (146) in a one-to-one correspondence manner, the first inlet pipes (145) are respectively provided with an electromagnetic stop valve (147) in a one-to-one correspondence manner, the first inlet pipes (145) are gathered in the first inlet pipe (141), and the first outlet pipes (146) are gathered in the first outlet pipe (142); and/or, a plurality of second sub cavities (154) respectively one-to-one have the second advance pipe (155) and second exit tube (156), many it is provided with electromagnetism stop valve (147) and many respectively one-to-one on second advance pipe (155) the second advance pipe (155) gather in second intake pipe (151), many second exit tube (156) gather respectively in second outlet duct (152).

14. The liquid distributor according to claim 13, wherein the radial cross-sectional area of any one of the first sub-chambers (144) is S1, and the radial cross-sectional area of the first inlet pipe (145) corresponding to the any one of the first sub-chambers (144) is S1, S1/S1 is 1/2; and/or the radial cross-sectional area of any one of the second sub-cavities (154) is S2, the radial cross-sectional area of the first inlet pipe (145) corresponding to the first sub-cavity (144) is S2, and S2/S2 is not more than 1/2.

15. The liquid distributor according to claim 14, characterized in that the first inlet pipe (145) and the first outlet pipe (146) corresponding to the same first subchamber (144) have the same radial cross-sectional area; and/or the radial cross-sectional areas of a second inlet pipe (155) and a second outlet pipe (156) corresponding to the same second sub-cavity (154) are equal.

16. The dispenser according to claim 12, wherein a plurality of the first sub-chambers (144) have different volumes; and/or the volume of a plurality of the second sub-cavities (154) is different.

17. The dispenser according to claim 16, wherein a first subchamber (144) of the plurality of first subchambers (144) having a largest volume is two times and more larger than a volume of a first subchamber (144) having a smallest volume; and/or the volume of the second sub-cavity (154) with the largest volume in the plurality of second sub-cavities (154) is two times or more larger than the volume of the second sub-cavity (154) with the smallest volume.

18. A compressor comprising a liquid distributor, wherein the liquid distributor is as claimed in any one of claims 1 to 17.

19. An air conditioner comprising a compressor, wherein said compressor is as recited in claim 18.

Technical Field

The invention belongs to the technical field of air conditioning, and particularly relates to a liquid separator, a compressor and an air conditioner.

Background

In the upstream industry of the traditional air conditioner compressor, a liquid distributor component adopted by the compressor is generally in a cylindrical barrel structure, a liquid distributor barrel is not in contact with the surface of a compressor shell, and heat transfer does not exist between the liquid distributor barrel and the compressor shell; in addition, a part of the liquid separator is in a special-shaped structure, the surface part of the cylinder body of the liquid separator is in contact with the surface of the shell of the compressor, and heat transfer exists between the liquid separator and the shell of the compressor, the structural sketch of the liquid separator is shown in figure 2, when the liquid separator is used in an air-conditioning refrigeration mode, the heat transferred to the liquid separator by the compressor is harmful heat, so that the suction gas overheating of the compressor is generated, the suction specific volume and the suction gas temperature of the compressor are increased, the energy efficiency of the compressor is reduced, and the exhaust temperature of the compressor is increased, so that the reliability of the compressor is reduced, namely the conventional non-contact and contact type liquid separators cannot meet the refrigerant in the liquid separator under different working conditions.

Disclosure of Invention

Therefore, the invention provides a liquid distributor, a compressor and an air conditioner, which overcome the defect that the heat of a shell of the compressor cannot be reasonably utilized by the liquid distributor according to the operation mode of the air conditioner in the prior art.

In order to solve the above problems, the present invention provides a liquid separator, including a first annular wall and a second annular wall located at a radial outer side of the first annular wall, a liquid separation space is formed between the first annular wall and the second annular wall, a partition is provided in the liquid separation space to partition the liquid separation space into a first liquid separation chamber and a second liquid separation chamber which are independent of each other, wherein the first liquid separation chamber corresponds to a first wall body region of the first annular wall, the first wall body region can perform heat exchange with a shell of a compressor, the second liquid separation chamber corresponds to a second wall body region of the first annular wall, and the second wall body region is insulated from the shell of the compressor.

Preferably, the first wall region has a thermally conductive coating; and/or, a thermal insulation coating at the second wall region; and/or the second surround has a thermally insulating coating on its peripheral side.

Preferably, the heat conduction temperature range of the heat conduction coating is-30 ℃ to 150 ℃; and/or the heat insulation temperature range of the heat insulation coating is-30 ℃ to 150 ℃.

Preferably, a first air inlet pipe is arranged at the upper part of the first liquid separation cavity, a first air outlet pipe is arranged at the lower part of the first liquid separation cavity, and a first filter element is arranged between an air outlet of the first air inlet pipe and an air inlet of the first air outlet pipe; and/or a second air inlet pipe is arranged at the upper part of the second liquid dividing cavity, a second air outlet pipe is arranged at the lower part of the second liquid dividing cavity, and a second filtering piece is arranged between the air outlet of the second air inlet pipe and the air inlet of the second air outlet pipe.

Preferably, the first air inlet pipe and the second air inlet pipe are connected in parallel and gathered in a total air inlet pipe, and the total air inlet pipe is provided with a first three-way valve so as to communicate the total air inlet pipe with the first air inlet pipe or the second air inlet pipe; and/or the first air outlet pipe and the second air outlet pipe are connected in parallel and gathered on the main air outlet pipe.

Preferably, in a radial plane projection of the liquid distributor, the first wall area corresponds to a first arc line, the second wall area corresponds to a second arc line, the first arc line is concentric with and in contact with the casing of the compressor, and a fitting gap is formed between the second arc line and the casing of the compressor.

Preferably, the maximum radial thickness of the assembly gap is delta, and delta is more than or equal to 2mm and less than or equal to 10 mm.

Preferably, in a projection on a radial surface of the liquid distributor, the first annular wall and the second annular wall are both circular, and the first annular wall and the second annular wall are concentrically arranged, or the first annular wall and the second annular wall are eccentrically arranged.

Preferably, when the first annular wall and the second annular wall are arranged eccentrically, the eccentricity between the first annular wall and the second annular wall is e, the diameter of the radial outer side of the first annular wall is d, and 10% of d is more than or equal to e and is more than 0.

Preferably, the first annular wall and the second annular wall have the same height and are both H, the diameter of the radial outer side of the second annular wall is D, and H/D is more than or equal to 1 and less than or equal to 3; and/or the diameter of the radial outer side of the second annular wall is D, and D/D is more than or equal to 1 and less than or equal to 2.

Preferably, the volume of the first liquid dividing cavity is Vr, the volume of the second liquid dividing cavity is Vl, and Vr/Vl is more than or equal to 1 and less than or equal to 20.

Preferably, the first liquid separation chamber comprises a plurality of first sub-chambers, and any two of the first sub-chambers can be selectively communicated; and/or the second liquid separation cavity comprises a plurality of second sub-cavities, and any two of the second sub-cavities can be selectively communicated.

Preferably, the plurality of first sub-cavities are respectively provided with a first inlet pipe and a first outlet pipe in a one-to-one correspondence manner, the plurality of first inlet pipes are respectively provided with an electromagnetic stop valve in a one-to-one correspondence manner, the plurality of first inlet pipes are gathered in the first inlet pipe, and the plurality of first outlet pipes are gathered in the first outlet pipe; and/or, it is a plurality of the second sub cavity one-to-one respectively has the second and advances pipe and second exit tube, many the second advances to be provided with electromagnetism stop valve and many on the pipe respectively one-to-one the second advance the pipe gather in the second intake pipe, many the second exit tube gather respectively in the second outlet duct.

Preferably, the radial cross-sectional area of any one of the first sub-cavities is S1, the radial cross-sectional area of the first inlet pipe corresponding to the any one of the first sub-cavities is S1, and S1/S1 is not more than 1/2; and/or the radial cross-sectional area of any one of the second sub-cavities is S2, the radial cross-sectional area of the first inlet pipe corresponding to any one of the first sub-cavities is S2, and S2/S2 is not more than 1/2.

Preferably, the radial sectional areas of the first inlet pipe and the first outlet pipe corresponding to the same first subchamber are equal; and/or the radial sectional areas of the second inlet pipe and the second outlet pipe corresponding to the same second sub-cavity are equal.

Preferably, the volumes of the plurality of first sub-cavities are different; and/or the volumes of the plurality of second sub-cavities are different.

Preferably, the volume of the first sub-cavity with the largest volume in the plurality of first sub-cavities is two times or more larger than the volume of the first sub-cavity with the smallest volume; and/or the volume of the second sub-cavity with the largest volume in the plurality of second sub-cavities is two times or more larger than the volume of the second sub-cavity with the smallest volume.

The invention also provides a compressor, which comprises the liquid distributor.

The invention also provides an air conditioner which comprises the compressor.

According to the liquid separator, the compressor and the air conditioner, the liquid separating space is divided into the first liquid separating cavity and the second liquid separating cavity through the partition piece, so that the liquid separating space can adapt to different operation modes of the air conditioner, specifically, heat exchange can be carried out between the first liquid separating cavity and the shell of the compressor, heat transfer generated by the compressor body is absorbed by the first liquid separating cavity of the liquid separator through the shell of the compressor can be accelerated, the evaporation speed of liquid refrigerants in the liquid separator is increased, liquid entrainment and even liquid impact during heating are avoided, the refrigerant mass flow rate during heating is increased, and the heating performance and the working reliability of the compressor are improved; make between the shell of second branch sap cavity and compressor adiabatic then avoid the second branch sap cavity absorbs the heat that the compressor body produced through the shell of compressor, prevents to breathe in overheated, reduces refrigerant superheat degree, improves compressor efficiency and operational reliability, also this technical scheme through will divide into mutually independent branch sap cavity rationally in the liquid separation space to carry out heat conduction or adiabatic processing between the shell of branch sap cavity and compressor to the refrigeration of air conditioner and the difference of the mode of heating, can effectively solve the compressor respectively under heating and refrigeration operating mode, different demands of different states refrigerant to compressor body and external environment heat transfer in the knockout, thereby improve compressor refrigeration, heating performance and operational reliability.

Drawings

FIG. 1 is a schematic diagram of a prior art dispenser;

FIG. 2 is a schematic view of another prior art dispenser;

FIG. 3 is a schematic perspective view of a liquid distributor according to an embodiment of the present invention;

FIG. 4 is a schematic view (in radial section) of the internal structure of a liquid distributor according to an embodiment of the present invention;

FIG. 5 is a schematic view (in radial section) of the internal structure of a liquid distributor according to another embodiment of the present invention;

FIG. 6 is a schematic view (in axial section) of the internal structure of the dispenser corresponding to FIG. 5;

FIG. 7 is a schematic view (in radial section) of the internal structure of a liquid distributor according to yet another embodiment of the present invention;

FIG. 8 is a schematic view (in radial section) of the internal structure of a liquid distributor according to yet another embodiment of the present invention;

FIG. 9 is a schematic view (in radial section) of the internal structure of a liquid distributor according to yet another embodiment of the present invention;

FIG. 10 is a schematic view of a plurality of first sub-chambers or second sub-chambers communicating with each other in a dispenser according to an embodiment of the present invention;

fig. 11 is a schematic structural view (cross section) of a compressor according to an embodiment of the present invention.

The reference numerals are represented as:

11. a first annular wall; 12. a second annular wall; 13. a separator; 14. a first liquid separation chamber; 141. a first intake pipe; 142. a first air outlet pipe; 143. a first filter member; 144. a first sub-cavity; 145. a first inlet pipe; 146. a first outlet pipe; 147. an electromagnetic cut-off valve; 15. a second liquid dividing cavity; 151. a second intake pipe; 152. a second air outlet pipe; 153. a second filter member; 154. a second subchamber; 155. a second inlet pipe; 156. a second outlet pipe; 16. a main air inlet pipe; 17. a main air outlet pipe; 18. a central bore; 100. a compressor.

Detailed Description

Referring to fig. 1 to 11 in combination, according to an embodiment of the present invention, there is provided a liquid separator, including a first annular wall 11 and a second annular wall 12 located at a radial outer side of the first annular wall 11, a liquid separating space is formed between the first annular wall 11 and the second annular wall 12 (it is understood that there are corresponding closing plates at ends of two ends of a length of the first annular wall 11 and the second annular wall 12, so as to make the liquid separating space a closed space), a partition 13 (for example, a partition) is provided in the liquid separating space to divide the liquid separating space into a first liquid separating cavity 14 and a second liquid separating cavity 15 which are independent from each other, wherein the first liquid separating cavity 14 corresponds to a first wall body area of the first annular wall 11, the first wall body area can perform heat exchange with a shell of the compressor 100, and the first liquid separating cavity 14 corresponds to an air conditioner in a heating mode, the second liquid dividing chamber 15 corresponds to a second wall region of the first annular wall 11, which is thermally insulated from the housing of the compressor 100, in which case the second liquid dividing chamber 15 corresponds to the air conditioner being in the cooling mode. In the technical scheme, the liquid separating space is divided into the first liquid separating cavity 14 and the second liquid separating cavity 15 through the partition 13, so that the liquid separating space can adapt to different operation modes of the air conditioner, specifically, the first liquid separating cavity 14 and the shell of the compressor 100 can exchange heat, the heat transfer generated by the compressor body absorbed by the first liquid separating cavity 14 of the liquid separator through the shell of the compressor can be accelerated, the evaporation speed of liquid refrigerant in the liquid separator is increased, the phenomenon that air is sucked with liquid or even liquid impact under the heating working condition is avoided, the refrigerant mass flow under the heating working condition is increased, and the heating performance and the working reliability of the compressor are improved; the heat insulation between the second liquid separation cavity 15 and the shell of the compressor 100 is avoided, the second liquid separation cavity 15 absorbs the heat generated by the compressor body through the shell of the compressor, the suction overheating is prevented, the refrigerant superheat degree is reduced, and the compressor energy efficiency and the working reliability are improved. In a specific embodiment, the first annular wall 11 has a central hole 18 at the center, and the compressor 100 is inserted into the central hole 18.

As a specific embodiment, preferably, the first wall region has a thermally conductive coating; and/or, a thermal insulation coating at the second wall region; and/or, the heat insulation coating is provided on the outer peripheral side surface of the second annular wall 12, so that the heat conduction or heat insulation capability between the corresponding liquid separation chamber and the shell of the compressor 100 can be enhanced, and the heat insulation coating provided on the outer peripheral side surface of the second annular wall 12 can prevent the refrigerant in the liquid separator chamber from absorbing heat from the external environment. In addition, the side of the partition 13 is also preferably provided with a heat insulating coating to prevent heat conduction between the first branch chamber 14 and the second branch chamber 15.

As mentioned above, the heat conductive coating is applied in heating mode, which is designed to be suitable for heating and ventilating equipment with evaporation temperature ranging from-30 ℃ to 25 ℃, and at the same time, the heat conductive coating material is required not to fail at the ambient temperature ranging from-30 ℃ to 150 ℃; the thermal insulation coating is applied in a refrigeration mode and is designed to be suitable for heating and ventilating equipment with a condensation temperature ranging from 25 ℃ to 75 ℃, and meanwhile, the thermal insulation coating material is required not to lose effectiveness at an ambient temperature ranging from-30 ℃ to 150 ℃.

In some embodiments, the upper portion of the first liquid-separation chamber 14 has a first inlet pipe 141, the lower portion of the first liquid-separation chamber 14 has a first outlet pipe 142, and a first filter 143 is disposed between an outlet of the first inlet pipe 141 and an inlet of the first outlet pipe 142; and/or, the upper portion of the second liquid dividing cavity 15 is provided with a second air inlet pipe 151, the lower portion of the second liquid dividing cavity 15 is provided with a second air outlet pipe 152, a second filter element 153 is arranged between an air outlet of the second air inlet pipe 151 and an air inlet of the second air outlet pipe 152, and the arrangement of the first filter element 143 and the second filter element 153 can facilitate the impurity filtration and the gas-liquid separation of the inlet air of the first air inlet pipe 141 and the second air inlet pipe 151. The first filter 143 and the second filter 153 may be filter screens.

Preferably, the first intake pipe 141 and the second intake pipe 151 are connected in parallel and gathered in a total intake pipe 16, and the total intake pipe 16 is provided with a first three-way valve (not shown) to communicate the total intake pipe 16 with the first intake pipe 141 or the second intake pipe 151; and/or, the first outlet pipe 142 and the second outlet pipe 152 are connected in parallel and gathered at the total outlet pipe 17, that is, the first three-way valve can selectively conduct one of the total inlet pipe 16 and the first inlet pipe 141 or the second inlet pipe 151 according to the operation mode of the air conditioner.

As shown in fig. 7 in particular, in the radial plane projection of the liquid distributor, the first wall region corresponds to a first arc line, the second wall region corresponds to a second arc line, the first arc line is concentric with and in contact with the casing of the compressor 100, and the second arc line forms an assembly gap with the casing of the compressor 100, the presence of the assembly gap enables air insulation to be formed between the second wall region and the casing of the compressor 100, and in some cases, the assembly gap may be filled with a corresponding insulation material. The maximum radial thickness of the assembling clearance is delta, delta is more than or equal to 2mm and less than or equal to 10mm, so that poor heat insulation caused by too large space occupied by too thick clearance or too small clearance after the liquid distributor is assembled is prevented.

Specifically, in the radial plane projection of the liquid separator, the first annular wall 11 and the second annular wall 12 may be elliptical or polygonal, and preferably, the first annular wall 11 and the second annular wall 12 are both circular, so that the structure is more compact, the first annular wall 11 and the second annular wall 12 are concentrically arranged, and the concentric arrangement mode can effectively meet the use requirement of an air conditioning system on the miniaturization of the compressor appearance assembly volume, and has a lower vibration noise level.

In some cases, the first annular wall 11 and the second annular wall 12 are arranged eccentrically, in this case, the eccentricity between the first annular wall 11 and the second annular wall 12 is e, the diameter of the radial outer side of the first annular wall 11 is d, and 10% d ≧ e > 0, so as to prevent the problem of excessive volume due to the eccentric arrangement.

Preferably, the heights of the first annular wall 11 and the second annular wall 12 are the same and are both H, the diameter of the radial outer side of the second annular wall 12 is D, and H/D is more than or equal to 1 and less than or equal to 3; and/or the diameter of the radial outer side of the second annular wall 12 is D, and D/D is more than or equal to 1 and less than or equal to 2. This ensures that the dispenser is more compact and reasonable in construction, and in some cases, the H/D is preferably close to 3, so that the outer diameter of the dispenser can be made smaller, and the dispenser can be made more compact.

Preferably, the volume of the first liquid dividing chamber 14 is Vr, the volume of the second liquid dividing chamber 15 is Vl, Vr/Vl is greater than or equal to 1 and less than or equal to 20, that is, Vr is not less than V1, because the evaporation temperature and the condensation temperature are both lower than the refrigeration condition and the refrigerant circulation volume is smaller under the heating condition of the air conditioner, and therefore the volume of the refrigerant to be stored in the liquid separator is larger than the refrigeration condition under the heating condition; under the low-temperature working condition, because the evaporation temperature is lower, the refrigerant circulation volume is smaller, the difference is obvious, and if under the ultralow-temperature heating working condition, the refrigerant stored in the liquid separator is more obvious than that under the refrigeration working condition, and the general volume ratio is controlled within 20.

The inventor researches and discovers that when the liquid distributor in the prior art is used for a variable frequency air conditioner compressor, particularly a variable frequency compressor with a very wide variable frequency range, the volume of a cavity of the liquid distributor is fixed, so that the mass flow demand is increased when the frequency is high, and the volume of the cavity of the liquid distributor is too small to meet the large flow demand, so that the performance of the compressor is affected; when the compressor operates at a low frequency (such as minimum refrigeration), the mass flow demand of the compressor is reduced, at the moment, the volume of the liquid distributor is overlarge, the heat transfer between the refrigerant inside the liquid distributor and the ambient temperature is increased, so that the specific volume and the suction temperature of the gaseous refrigerant inside the liquid distributor are increased, the energy efficiency of the compressor is reduced, the exhaust temperature of the compressor is increased, and the reliability of the compressor is reduced, namely, the volume of the liquid distributor is fixed and cannot meet the requirements of the full-band high energy efficiency and high reliability of the variable frequency compressor, and actually, the compressor needs a small volume when the compressor operates at the low frequency and needs a large volume when the compressor operates at the high frequency, based on the discovery, the first liquid distribution cavity 14 further comprises a plurality of first sub-cavities 144, and any; and/or, the second liquid distribution chamber 15 includes a plurality of second sub-chambers 154, and any two of the plurality of second sub-chambers 154 can be selectively communicated, specifically, for example, as shown in fig. 10, any two of the first sub-chambers 144 or any two of the second sub-chambers 154 can be selectively communicated through corresponding electromagnetic stop valves 147, so that actual capacities of different liquid distribution chambers can be matched according to different compressor operation conditions, that is, adjustment of the action volumes of the liquid distribution chambers is variable. Further, the first sub-cavities 144 respectively have first inlet pipes 145 and first outlet pipes 146 in a one-to-one correspondence manner, the first inlet pipes 145 are respectively provided with electromagnetic stop valves 147 in a one-to-one correspondence manner, the first inlet pipes 145 are gathered in the first inlet pipe 141, and the first outlet pipes 146 are gathered in the first outlet pipe 142; and/or, a plurality of the second sub-cavities 154 are respectively provided with a second inlet pipe 155 and a second outlet pipe 156 in a one-to-one correspondence manner, a plurality of the second inlet pipes 155 are respectively provided with an electromagnetic stop valve 147 and a plurality of the second inlet pipes 155 which are gathered in the second inlet pipe 151, and a plurality of the second outlet pipes 156 which are gathered in the second outlet pipe 152.

In some embodiments, the volume of the plurality of first subchambers 144 varies; and/or the volume of a plurality of second subchambers 154 may vary. Further, the volume of the first sub-chamber 144 with the largest volume among the plurality of first sub-chambers 144 is two times or more larger than the volume of the first sub-chamber 144 with the smallest volume; and/or, the volume of the second sub-chamber 154 with the largest volume among the plurality of second sub-chambers 154 is two times and more larger than the volume of the second sub-chamber 154 with the smallest volume.

For example, in a specific embodiment, as shown in fig. 10, the first liquid-separation chamber 14 has four first sub-chambers 144, and the volumes of the four first sub-chambers 144 are V, 2V, 4V, and 8V, respectively, since any two of the first sub-chambers 144 can be selectively communicated with each other, so that the first liquid-separation chamber 14 can actually form fifteen different volumes through the communication of the electromagnetic stop valve 147, which are V, 2V, 3V, 4V, 5V, 6V, 7V, 8V, 9V, 10V, 11V, 12V, 13V, 14V, and 15V, respectively, and can be one-to-one corresponding to different operating frequencies of the compressor, thereby achieving the purpose of matching the volumes with the operating frequencies. The second liquid dividing chamber 15 and the first liquid dividing chamber 14 can be arranged in the same way, and are not described in detail herein.

Preferably, the radial cross-sectional area of any one of the first sub-cavities 144 is S1, the radial cross-sectional area of the first inlet pipe 145 of the corresponding first sub-cavity 144 is S1, and S1/S1 is not more than 1/2; and/or the radial cross-sectional area of any one of the second sub-chambers 154 is S2, the radial cross-sectional area of the first inlet pipe 145 of the corresponding first sub-chamber 144 is S2, and S2/S2 is not more than 1/2. Further, the radial cross-sectional areas of the first inlet pipe 145 and the first outlet pipe 146 corresponding to the same first subchamber 144 are equal; and/or the radial cross-sectional areas of second inlet tube 155 and second outlet tube 156 corresponding to the same second subchamber 154 are equal.

According to an embodiment of the present invention, there is also provided a compressor, including the above-mentioned liquid distributor, specifically, the first annular wall 11 of the liquid distributor is sleeved outside the shell of the compressor 100.

According to an embodiment of the invention, an air conditioner is also provided, which comprises the compressor.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.