CN218542637U - Frequency converter integrated compressor, cooling structure thereof and air conditioning equipment - Google Patents

Abstract

The application relates to a frequency converter integrated compressor, a cooling structure of the frequency converter integrated compressor and air conditioning equipment. The cooling structure of the frequency converter integrated compressor comprises a compressor main body; the frequency converter is at least partially arranged on the outer side of the compressor main body; wherein, a heat exchange channel for circulating a heat exchange medium is formed between the compressor main body and the frequency converter. Above-mentioned converter integration compressor and cooling structure, air conditioning equipment set up the heat transfer passageway between compressor main part and converter, through circulation heat transfer medium in the heat transfer passageway, can directly carry out the heat transfer with the converter, and then avoid the converter the condition of subcooling, overheated and condensation to appear.

Description

Frequency converter integrated compressor, cooling structure thereof and air conditioning equipment

Technical Field

The application relates to the technical field of air conditioners, in particular to a frequency converter integrated compressor, a cooling structure of the frequency converter integrated compressor and air conditioning equipment.

Background

Centrifugal chiller units are widely used in commercial air conditioning systems, centrifugal refrigeration compressors are the core devices of centrifugal chiller units, and generally speaking, centrifugal refrigeration compressors are driven by frequency converters for pressure regulation. The traditional centrifugal refrigeration compressor adopts a compressor and a frequency converter independent structure, the volumes of the compressor and the frequency converter are both large, so that the total volume of the centrifugal water chilling unit is very large to a great extent, and the occupied area and the space of the centrifugal water chilling unit are very large.

Since the 21 st century, the industrial miniaturization and integration become an epoch development trend, and with the breakthrough of the frequency converter part technology, the size of the part is more and more miniaturized, so that the frequency converter integrated compressor is produced. The frequency converter integrated compressor highly integrates the frequency converter and the compressor, greatly reduces the volume of the original independent compressor and the frequency converter, obviously reduces the total volume of the centrifugal water chilling unit and improves the foundation for the miniaturization development of the water chilling unit.

However, although the inverter-integrated compressor has many advantages, the cooling method of the inverter becomes a difficult problem. Because the frequency converter is integrated on the compressor, the arrangement of parts is extremely compact, and the structure of the compressor is also quite compact, so that the arrangement of the cooling structure of the frequency converter is very limited. Meanwhile, the compressor is structurally connected with the frequency converter, so that thermal interference between the compressor and the frequency converter is likely to occur, namely, the frequency converter is supercooled, overheated and condensed.

SUMMERY OF THE UTILITY MODEL

Therefore, the inverter integrated compressor, the cooling structure thereof and the air conditioning equipment are needed to be provided for solving the problems of supercooling, overheating and condensation of the inverter in the existing inverter integrated compressor, and the inverter integrated compressor and the cooling structure thereof can relieve the supercooling, overheating and condensation of the inverter.

In a first aspect, the present application provides a cooling structure of an inverter-integrated compressor, including:

a compressor main body; and

the frequency converter is at least partially arranged on the outer side of the compressor main body;

wherein, a heat exchange channel for circulating a heat exchange medium is formed between the compressor main body and the frequency converter.

Above-mentioned cooling structure of converter integration compressor sets up the heat transfer passageway between compressor main part and converter, through circulation heat transfer medium in the heat transfer passageway, can directly carry out the heat transfer with the converter, and then avoids the converter the condition of subcooling, overheated and condensation to appear.

In some of these embodiments, the compressor body includes a motor, the inverter is disposed at least partially outside the motor, and the heat exchange passage is formed between the motor and the inverter.

In some embodiments, the electric machine includes a machine housing, the frequency converter is at least partially disposed outside the machine housing, and the heat exchanging channel is formed in the machine housing.

In some embodiments, the motor housing has a groove formed on an outer side thereof for defining a heat exchange passage.

In some embodiments, the cooling structure further includes a heat transfer member disposed outside the compressor body and between the heat exchange passage and the inverter.

In some of these embodiments, the side of the heat transfer element facing away from the frequency converter is used to define heat exchange channels.

In some of these embodiments, the heat exchange channels have inlet and outlet ends at their respective ends, at least one of the inlet and outlet ends communicating with the interior of the compressor body.

In some of these embodiments, the compressor body includes a motor, and at least one of the inlet end and the outlet end is in communication with an interior of the motor.

In some embodiments, the electric machine further comprises a machine housing, and a stator, a rotor, and a first spacer all disposed within the machine housing;

the stator surrounds the outer side of the rotor, the first separating part is arranged on one side of the stator along the axial direction of the rotor, a first inner cavity is formed between the first separating part and the stator, and the inlet end or the outlet end is communicated with the first inner cavity.

In some embodiments, the compressor main body further comprises a second partition, the second partition is arranged on one side of the first partition, which faces away from the stator, along the axial direction of the rotor, and forms a second inner cavity with the first partition, one of the inlet end and the outlet end is communicated with the first inner cavity, and the other is communicated with the second inner cavity; and/or

The motor also comprises a third partition part, the third partition part is arranged on one side of the stator far away from the first partition part along the axial direction of the rotor, a third inner cavity is formed between the third partition part and the stator, one of the inlet end and the outlet end is communicated with the first inner cavity, and the other of the inlet end and the outlet end is communicated with the third inner cavity.

In some embodiments, the heat exchange channels comprise at least two heat exchange media, and the heat exchange medium in each heat exchange channel is used for exchanging heat for a component of the same frequency converter, or the heat exchange media of the at least two heat exchange channels are used for exchanging heat for different components of the frequency converter.

In some embodiments, the cooling structure further includes a flow regulating valve disposed on the heat exchange channel for regulating the flow of the heat exchange medium in the heat exchange channel.

In some of the embodiments, the cooling structure further comprises a temperature detector for detecting the temperature of the frequency converter, and the flow regulating valve is responsive to the temperature of the temperature detector for regulating the flow of the heat exchange medium.

In a second aspect, there is provided an inverter-integrated compressor including the cooling structure of the inverter-integrated compressor in any of the above embodiments.

Above-mentioned converter integration compressor sets up the heat transfer passageway between compressor main part and converter, through circulation heat transfer medium in the heat transfer passageway, can directly carry out the heat transfer with the converter, and then avoids the converter the condition of subcooling, overheated and condensation to appear.

In a third aspect, an air conditioning apparatus is provided, including the inverter-integrated compressor in any of the above embodiments.

Above-mentioned air conditioning equipment sets up the heat transfer passageway between compressor main part and converter, through circulation heat transfer medium in the heat transfer passageway, can directly carry out the heat transfer with the converter, and then avoids the converter the condition of subcooling, overheated and condensation to appear.

Drawings

Fig. 1 is a schematic sectional view showing a cooling structure of an inverter-integrated compressor according to an embodiment of the present application;

fig. 2 is a schematic structural view of a part of the cooling structure of the inverter-integrated compressor shown in fig. 1.

Reference numerals:

a cooling structure 100 of the inverter-integrated compressor;

a compressor main body 10;

the motor 11, the motor housing 111, the groove 111a, the rotor 112, the stator 113, the first partition 114, the first inner cavity 115, the third partition 116, the third inner cavity 117, the second partition 12, the second inner cavity 13;

a frequency converter 20;

a converter diode 21, an insulated gate bipolar transistor 22;

heat exchange channels 30;

inlet end 31, outlet end 32;

a heat transfer member 40;

a flow rate regulating valve 50;

and a temperature detector 60.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The accompanying drawings are not 1:1, and the relative sizes of the various elements in the drawings are drawn for illustration only and not necessarily to true scale.

Fig. 1 is a schematic sectional view showing a cooling structure of an inverter-integrated compressor according to an embodiment of the present application; fig. 2 is a schematic structural view of a part of the cooling structure of the inverter-integrated compressor shown in fig. 1.

Referring to the drawings, an embodiment of the present application provides a cooling structure 100 of an inverter-integrated compressor, including a compressor body 10 and an inverter 20.

The inverter-integrated compressor in the present application refers to a compressor in which the inverter 20 and the compressor main body 10 are integrated.

In an embodiment of the present application, the compressor main body 10 may include a compressor body (not shown) and a motor 11, the compressor body may be a centrifugal compressor body, and specifically includes a rotating impeller, and the motor 11 may be in transmission connection with the rotating impeller to control the rotating impeller to rotate to compress a refrigerant to do work. In other embodiments, the compressor body may also be a reciprocating piston compressor body, which is not limited herein.

The frequency converter 20 is in communication connection with the motor 11 and is used for controlling the rotating speed of the motor 11 to enable the motor 11 to be in an optimal rotating speed state all the time, so that the energy efficiency ratio is improved.

The inverter 20 is at least partially disposed outside the compressor body 10, and specifically, the inverter 20 may be at least partially disposed outside the compressor body or outside the motor 11. Preferably, however, the frequency converter 20 is disposed outside the motor 11, on one hand, because the distance between the two is shorter, the circuit connection between the two can be simplified, and on the other hand, the frequency conversion control is more timely and accurate.

A heat exchange passage 30 through which a heat exchange medium flows is formed between the compressor body 10 and the inverter 20.

It should be noted that the heat exchange medium in the heat exchange channel 30 of the present application exchanges heat with at least the inverter 20, for example, cools the inverter 20 to remove heat generated by the inverter 20, and also exchanges heat with the compressor body 10, for example, cools the motor 11 to remove heat generated by the motor 11, and is not limited in particular.

Therefore, the cooling structure 100 of the frequency converter integrated compressor of the present application sets the heat exchange channel 30 between the compressor main body 10 and the frequency converter 20, and can directly exchange heat with the frequency converter 20 by passing a heat exchange medium through the heat exchange channel 30, thereby avoiding the occurrence of supercooling, overheating and condensation of the frequency converter 20.

In the embodiment of the present application, the motor 11 includes a motor housing 111, the frequency converter 20 is at least partially disposed outside the motor housing 111, and the heat exchanging channel 30 is formed on the motor housing 111.

Directly forming the heat exchange channel 30 on the motor housing 111 can avoid adding an additional heat exchange pipe between the motor 11 and the frequency converter 20, thereby simplifying the cooling structure 100, improving the structural compactness of the frequency converter integrated compressor, and reducing the part cost.

Further, the motor housing 111 is opened at an outer side thereof with a groove 111a for defining the heat exchanging passage 30.

The formation of the grooves 111a on the motor housing 111 is simple and has little effect on the structural strength of the motor housing 111.

Specifically, the groove 111a opens on the outer circumferential wall of the motor housing 111. More specifically, the recess 111a forms an opening in the motor housing 111, the opening being provided in the outer circumferential wall.

In other embodiments, the groove 111a may also be opened on the sidewall of the motor housing 111, which is not limited in particular.

In some embodiments, in order to enable the heat exchange medium in the heat exchange channel 30 to be efficiently exchanged with the inverter 20, the cooling structure 100 is provided to further include a heat transfer member 40, and the heat transfer member 40 is provided outside the compressor body 10 and between the heat exchange channel 30 and the inverter 20.

Specifically, the heat transfer member includes a member processed from a material that is easily heat conductive and heat conductive. Specifically, the heat transfer element may be a metal material, and may also be another non-metal heat conduction material.

Further, the heat transfer member 40 may also function to support the frequency converter 20.

Preferably, the side of the heat transfer element 40 facing away from the frequency converter 20 is used to define the heat exchange channel 30. Specifically, the heat transfer member 40 is disposed to cover an opening of the groove 111a. So, can simplify the structure to can make heat transfer medium more be close to converter 20, in order to improve heat exchange efficiency between the two.

In the embodiment of the present application, the heat exchange channels 30 include at least two, and the heat exchange channels 30 are spaced apart from each other.

The arrangement of the plurality of heat exchange channels 30 can improve the heat exchange efficiency, and meanwhile, the cross-sectional area of the heat exchange channels 30 can be reduced, so that the influence on the structural strength of the compressor main body 10 is reduced.

Specifically, a plurality of heat exchange passages 30 are provided spaced apart from each other in the circumferential direction of the compressor body 10. In this way, the inverter 20 mounted outside the compressor body 10 can exchange heat over the entire surface. More specifically, the plurality of heat exchange passages 30 are arranged at intervals from each other in the circumferential direction of the motor housing 111.

Further, the heat transfer member 40 is annularly disposed outside the compressor body 10. By the sheathing, a closer relationship between the heat transfer member 40 and the compressor main body 10 can be formed, and the opening of the groove 111a can be sealed only by providing an elastic sealing member between the outside of the compressor main body 10 and the heat transfer member 40, thereby simplifying the sealing of the heat exchange passage 30.

In some embodiments, the heat exchange medium within each heat exchange channel 30 is used to exchange heat with components of the same frequency converter 20. In other embodiments, the heat exchange medium of at least two heat exchange channels 30 is used to exchange heat for different components of the frequency converter 20.

For example, the frequency converter 20 comprises frequency converter diodes 21 and Insulated-Gate Bipolar-transistors (IGBT) 22, wherein the heat exchanging medium of at least one heat exchanging channel 30 is used for exchanging heat for the frequency converter diodes 21, and wherein the heat exchanging medium of at least one other heat exchanging channel 30 is used for exchanging heat for the Insulated-Gate Bipolar transistors 22.

It should be noted that the inverter diode 21 includes at least three identical diodes connected in parallel, and the heat generation is significant when high voltage current flows through the diodes.

The inverter 20 may include at least three identical and parallel-arranged insulated-gate bipolar transistors 22, the insulated-gate bipolar transistors 22 being electrically connectable to an input power source of the inverter-integrated compressor to provide electrical power to the inverter-integrated compressor.

In the embodiment of the present application, inverter diode 21 and igbt 22 are provided at a distance from each other in the axial direction of motor housing 111. The heat exchanging channel 30 corresponding to the inverter diode 21 and the sub-heat exchanging channel 30 corresponding to the insulated gate bipolar transistor 22 are arranged at intervals from each other in the axial direction of the motor housing 111.

In some embodiments, the heat exchange channels 30 are terminated at the inlet end 31 and the outlet end 32, respectively, and at least one of the inlet end 31 and the outlet end 32 communicates with the interior of the compressor body 10.

By communicating at least one of the inlet end 31 and the outlet end 32 of the heat exchange channel 30 with the inside of the motor 11, the heat exchange medium can be returned to the inside of the compressor main body 10 for recycling, thereby optimizing the overall heat exchange effect of the frequency converter integrated compressor.

Preferably, at least one of the inlet end 31 and the outlet end 32 communicates with the interior of the motor 11.

The motor 11 generates a large amount of heat due to operation, and needs to be continuously cooled to prevent the motor 11 from being damaged by demagnetization and burnout due to overhigh temperature, so that at least one of the inlet end 31 and the outlet end 32 of the heat exchange channel 30 is communicated with the inside of the compressor main body 10, and the heat exchange medium can exchange heat with the motor 11 at the same time.

In other embodiments, at least one of the inlet end 31 and the outlet end 32 communicates with the inside of the other portion of the compressor main body 10 except the motor 11, for example, communicates with the inside of the compressor body, and is not limited in particular.

Further, the motor 11 includes a rotor 112, a stator 113, and a first separator 114, which are disposed inside the motor housing 111. The stator 113 is disposed around the outer side of the rotor 112, the first partition 114 is disposed on one side of the stator 113 along the axial direction of the rotor 112, and forms a first inner cavity 115 with the stator 113, and the inlet end 31 or the outlet end 32 is communicated with the first inner cavity 115.

Specifically, the rotor 112 is a strong magnetic shaft, is composed of a main shaft and magnetic steel, is a core moving part of the compressor, has strong magnetism, and can rotate at high speed under the action of the stator 113.

Specifically, the stator 113 includes a coil winding and a magnetic steel sheet, and is operated at a high speed by generating a strong magnetic field by inputting a high voltage to the rotor 112.

Therefore, a heat exchange medium can enter the first inner cavity 115, and further exchange heat for the rotor 112 or the stator 113, and the heat exchange effect is improved. In addition, the first inner cavity 115 is formed, so that the first inner cavity 115 can be separated from other parts, and the influence of the heat exchange medium on other parts is avoided.

Specifically, the first separator 114 is a first bearing, an inner ring of which is rotationally engaged with the rotor 112, and an outer ring of which is fixedly engaged with an inner peripheral wall of the motor housing 111. The first bearing can provide not only radial support for the motor housing 111, but also support for the rotor 112.

More specifically, the compressor main body 10 further includes a second partition 12, the second partition 12 is disposed on a side of the first partition 114 facing away from the stator 113 in the axial direction of the rotor 112, and forms a second inner cavity 13 with the first partition 114, one of the inlet end 31 and the outlet end 32 communicates with the first inner cavity 115, and the other communicates with the second inner cavity 13.

By arranging the second inner cavity 13, the heat exchanger can be matched with the first inner cavity 115 to form a circulating path, so that the heat exchange of the frequency converter 20 and the recovery of a heat exchange medium are realized.

In particular to the present embodiment, the inlet end 31 communicates with the first interior cavity 115 and the outlet end 32 communicates with the second interior cavity 13.

Specifically, the second partition 12 is a first diffuser, an inner hole of the first diffuser is rotatably fitted to the rotor 112, and an outer periphery of the first diffuser is fixedly fitted to an inner peripheral wall of the motor housing 111. Specifically, the second partition 12 is a one-stage diffuser.

The first diffuser can diffuse high-speed gas from the impeller into high-pressure gas, and simultaneously, has a sealing effect on the inside of the compressor body 10.

In some embodiments, the motor 11 further includes a third partition 116, the third partition 116 is disposed on a side of the stator 113 far from the first partition 114 along the axial direction of the rotor 112, and forms a third inner cavity 117 with the stator 113, and one of the inlet end 31 or the outlet end 32 is communicated with the first inner cavity 115, and the other is communicated with the third inner cavity 117.

Similarly, by providing the third cavity 117, it can cooperate with the first cavity 115 to form a circulation path, so as to realize heat exchange of the frequency converter 20 and recovery of the heat exchange medium.

In the present embodiment, the inlet end 31 communicates with the first interior cavity 115 and the outlet end 32 communicates with the third interior cavity 117.

Specifically, the third spacer 116 is a second bearing, an inner ring of which is rotatably engaged with the rotor 112, and an outer ring of which is fixedly engaged with the inner peripheral wall of the motor housing 111. The second bearing can provide not only radial support for the motor housing 111, but also support for the rotor 112.

In the embodiment of the present application, the inlet end 31 of at least one of the heat exchange channels 30 is in communication with the first cavity 115, and the outlet end 32 is in communication with the second cavity 13, and the inlet end 31 of at least one other of the heat exchange channels 30 is in communication with the first cavity 115, and the outlet end 32 is in communication with the third cavity 117. In this way, the inlet ends 31 can be communicated with the first inner cavity 115 and respectively flow to the different second inner cavity 13 and third inner cavity 117 through the different heat exchange channels 30, so that the circulation path is simplified.

In some embodiments, the cooling structure 100 further includes a flow regulating valve 50, and the flow regulating valve 50 is disposed on the heat exchange channel 30 for regulating the flow of the heat exchange medium in the heat exchange channel 30.

By providing the flow rate adjustment valve 50, the flow rate of the heat exchange medium can be controlled, so that the temperature of the frequency converter 20 can be accurately adjusted.

Specifically, when the heat exchanging channels 30 include at least two, the flow regulating valve 50 may also include a plurality of flow regulating valves, and at least one flow regulating valve 50 is correspondingly disposed in each heat exchanging channel 30.

In some embodiments, the flow regulating valve 50 is provided at the inlet end 31 of the heat exchange channel 30, so that the flow rate into the heat exchange channel 30 can be quickly regulated.

In other embodiments, the flow regulating valve 50 may also be disposed at the outlet end 32, and is not limited in particular.

Further, the cooling structure 100 further includes a temperature detector 60, the temperature detector 60 is used for detecting the temperature of the frequency converter 20, and the flow regulating valve 50 is responsive to the temperature of the temperature detector 60 to regulate the flow of the heat exchange medium.

Thus, the temperature detector 60 can detect the temperature of the frequency converter 20 at any time, and adjust the opening degree of the flow regulating valve 50, so as to increase or decrease the flow of the heat exchange medium, so that the frequency converter 20 is cooled or heated as soon as possible, and a preset temperature range or a preset temperature value is reached.

Specifically, the temperature detector 60 and the flow control valve 50 can both communicate with the main control board of the frequency converter 20, and after detecting a temperature signal, the temperature detector 60 can feed back the temperature signal to the main control board of the frequency converter 20, and the main control board of the frequency converter 20 sends out an opening signal according to the temperature signal, and the flow control valve 50 adjusts the opening according to the opening signal.

Based on the same inventive concept, the present application further provides an inverter-integrated compressor including the cooling structure 100 of the inverter-integrated compressor in any of the above embodiments.

The utility model provides a converter integration compressor sets up heat transfer passageway 30 between compressor main part 10 and converter 20, through circulation heat transfer medium in heat transfer passageway 30, can directly carry out the heat transfer with converter 20, and then avoids converter 20 the condition of subcooling, overheated and condensation to appear.

Based on the same inventive concept, the application also provides air conditioning equipment comprising the frequency converter integrated compressor.

The application of the air conditioning equipment sets up heat transfer passageway 30 between compressor main part 10 and converter 20, through circulation heat transfer medium in heat transfer passageway 30, can directly carry out the heat transfer with converter 20, and then avoids the condition of subcooling, overheated and condensation to appear in converter 20.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the present invention, and these changes and modifications are all within the scope of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (15)

1. A cooling structure (100) of a frequency converter integrated compressor, comprising:

a compressor main body (10); and

an inverter (20) at least partially disposed outside the compressor body (10);

wherein a heat exchange channel (30) for circulating a heat exchange medium is formed between the compressor main body (10) and the frequency converter (20).

2. The cooling structure (100) of an inverter-integrated compressor according to claim 1, wherein the compressor body (10) comprises an electric motor (11), the inverter (20) is at least partially provided outside the electric motor (11), and the heat exchanging channel (30) is formed between the electric motor (11) and the inverter (20).

3. The cooling structure (100) of the inverter-integrated compressor according to claim 2, wherein the motor (11) includes a motor housing (111), the inverter (20) is at least partially provided outside the motor housing (111), and the heat exchanging passage (30) is formed on the motor housing (111).

4. The cooling structure (100) of the inverter-integrated compressor according to claim 3, wherein a groove (111 a) for defining the heat exchange passage (30) is opened at an outer side of the motor housing (111).

5. The cooling structure (100) of an inverter-integrated compressor according to claim 1, wherein the cooling structure (100) further comprises a heat transfer member (40), the heat transfer member (40) being provided outside the compressor body (10) and between the heat exchange channel (30) and the inverter (20).

6. Cooling structure (100) of an inverter-integrated compressor according to claim 5, wherein a side of the heat transfer element (40) facing away from the inverter (20) is adapted to delimit the heat exchanging channel (30).

7. The cooling structure (100) of the inverter-integrated compressor according to claim 1, wherein the heat exchange channel (30) has an inlet end (31) and an outlet end (32) at its two ends, respectively, at least one of the inlet end (31) and the outlet end (32) communicating with the interior of the compressor body (10).

8. The cooling structure (100) of the inverter-integrated compressor according to claim 7, wherein the compressor main body (10) includes a motor (11), and at least one of the inlet end (31) and the outlet end (32) communicates with an inside of the motor (11).

9. The cooling structure (100) of the inverter-integrated compressor according to claim 8, wherein the motor (11) further comprises a motor housing (111), and a stator (113), a rotor (112) and a first separator (114) all disposed within the motor housing (111);

the stator (113) surrounds the outside of the rotor (112), the first separating part (114) is arranged on one side of the stator (113) along the axial direction of the rotor (112), a first inner cavity (115) is formed between the first separating part and the stator (113), and the inlet end (31) or the outlet end (32) is communicated with the first inner cavity (115).

10. The cooling structure (100) of the inverter-integrated compressor according to claim 9, wherein the compressor main body (10) further includes a second partition member (12), the second partition member (12) being provided on a side of the first partition member (114) facing away from the stator (113) in an axial direction of the rotor (112) and forming a second inner chamber (13) with the first partition member (114), one of the inlet end (31) and the outlet end (32) communicating with the first inner chamber (115), and the other communicating with the second inner chamber (13); and/or

The motor (11) further comprises a third partition (116), the third partition (116) is arranged on one side of the stator (113) far away from the first partition (114) along the axial direction of the rotor (112), a third inner cavity (117) is formed between the third partition and the stator (113), one of the inlet end (31) and the outlet end (32) is communicated with the first inner cavity (115), and the other of the inlet end and the outlet end is communicated with the third inner cavity (117).

11. The cooling structure (100) of an inverter-integrated compressor according to claim 1, wherein the heat exchange channels (30) comprise at least two, and the heat exchange medium in each heat exchange channel (30) is used for exchanging heat with a component of the same inverter (20), or the heat exchange medium of at least two heat exchange channels (30) is used for exchanging heat with a different component of the inverter (20).

12. The cooling structure (100) of the inverter-integrated compressor according to claim 1, wherein the cooling structure (100) further comprises a flow regulating valve (50), and the flow regulating valve (50) is disposed on the heat exchanging channel (30) for regulating the flow of the heat exchanging medium in the heat exchanging channel (30).

13. The cooling structure (100) of the inverter-integrated compressor according to claim 12, wherein the cooling structure (100) further comprises a temperature detector (60), the temperature detector (60) is used for detecting the temperature of the inverter (20), and the flow regulating valve (50) is responsive to the temperature of the temperature detector (60) to regulate the flow of the heat exchange medium.

14. An inverter-integrated compressor, characterized by comprising a cooling structure (100) of an inverter-integrated compressor according to any one of claims 1 to 13.

15. An air conditioning apparatus, characterized by comprising the inverter-integrated compressor according to claim 14.

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