Internal high-pressure compressor and air conditioning system

Abstract

The utility model relates to the technical field of air-conditioning compressors, in particular to an internal high-pressure compressor and an air-conditioning system adopting the same. The compressor is further provided with a cooling pipeline, the cooling pipeline penetrates through the compressor shell to enter the interior of the compressor and makes contact with the motor stator for heat exchange, and motor cooling is achieved. After entering the compressor, the cooling pipeline is divided into a plurality of cooling pipeline branches; the motor stator is made of a stator punching sheet with a special shape, and a plurality of notches are processed on the stator punching sheet; the cooling pipeline branch passes through the notch, extends from the motor stator reverse guide side to the motor stator positive guide side, and converges to form a cooling pipeline. According to the technical scheme, the problems that the efficiency of an existing internal high-pressure compressor is low and the low-temperature running range is difficult to expand due to the fact that the running temperature of a motor is high are solved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning compressor technology, and in particular to an internal high-pressure compressor and an air conditioning system using the compressor. Background Technology

[0002] Existing internal high-pressure compressors primarily use an electric motor to drive the compression components: scroll compressors mainly use an electric motor to drive a scroll plate for compression; rotary compressors mainly use an electric motor to drive a rolling rotor for compression. The efficiency of the electric motor greatly affects the overall operating efficiency of the compressor.

[0003] The motors of the internal high-pressure compressors are all located on the high-temperature exhaust side of the compressor. In addition, the motors themselves generate heat during operation, causing the motor temperature to gradually rise and operate in a high-temperature state.

[0004] There are two technical shortcomings in addressing the motor temperature of existing internal high-pressure compressors: First, the high motor temperature results in low operating efficiency, affecting the overall operating efficiency of the compressor. Second, under extreme operating conditions, the exhaust temperature and motor heating both increase, leading to a further increase in motor temperature and making the motor prone to burnout. This is not conducive to expanding the operating range of the compressor, especially the operating range of compressors operating at low or even ultra-low temperatures.

[0005] In view of the problems existing in the above-mentioned prior art, it is necessary to research and design a new type of internal high-pressure compressor and air conditioning system to overcome the problems existing in the prior art. Summary of the Invention

[0006] In view of the technical problems of high motor temperature, low motor operating efficiency and small low-temperature operating range in the existing internal high-pressure compressor technology mentioned above, a partial high-pressure compressor and air conditioning system are provided.

[0007] The technical means adopted in this utility model are as follows:

[0008] An internal high-pressure compressor includes a compressor; the compressor comprises: an intake pipe, an upper cover, a fixed scroll, a moving scroll, an upper support, a cross ring, an exhaust pipe, a crankshaft, a motor stator, a motor rotor, a housing, a lower support assembly, and a lower cover; the fixed scroll and the moving scroll are assembled in a mating manner; the fixed scroll is fixedly connected to the upper support by bolts; the moving scroll is assembled on the top of the crankshaft; the intake pipe is provided on the upper part of the fixed scroll, the bottom end of the intake pipe is fixedly installed on the upper part of the fixed scroll and is identical to its internal cavity, and the top end passes through the upper cover and is placed outside the compressor; the exhaust pipe passes through the compressor housing. The compressor body enters the compressor interior and is located below the upper support. A cross ring is placed between the upper support and the fixed scroll. The keys of the cross ring are placed on the fixed scroll and the moving scroll respectively to prevent the moving scroll from rotating during compressor operation. The moving scroll, driven by the motor, works with the fixed scroll through the crankshaft to perform compression. The motor consists of a stator and a rotor. The stator is interference-fitted into the housing, and the rotor is interference-fitted onto the crankshaft. The crankshaft is located between the upper and lower support assemblies, and oil is supplied from the oil sump in the lower cover to various locations through the oil suction pipe in the lower support assembly.

[0009] Furthermore, the compressor is also equipped with cooling pipes;

[0010] Furthermore, the cooling pipes pass through the compressor housing and enter the compressor interior, where they contact the motor stator for heat exchange, thereby cooling the motor.

[0011] Furthermore, after entering the compressor, the cooling pipes are branched into multiple cooling pipe branches;

[0012] Furthermore, the motor stator is made of stator laminations of a special shape, and multiple slots are machined on the stator laminations;

[0013] Furthermore, the cooling pipe branches extend from the reverse conductor side of the motor stator to the positive conductor side of the motor stator through the slots and converge into a single cooling pipe.

[0014] Furthermore, the cooling pipe branch section of the cooling pipe branch contacts the slot for heat exchange. The cross-section of the cooling pipe branch and the shape of the slot can be set to be circular, rectangular or other shapes with a large contact area. The large contact area is beneficial to the cooling of the motor stator. The cooling pipe branch and the slot are fixed by filling with high thermal conductivity materials such as alumina and aluminum nitride. Alternatively, high thermal conductivity silicone grease can be added to increase the heat conduction effect.

[0015] Furthermore, the compressor includes two structures: one without a gas injection enthalpy-increasing structure and the other with a gas injection enthalpy-increasing structure.

[0016] Furthermore, when the compressor does not have a gas replenishment and content enhancement structure, multiple cooling pipe branches converge into a cooling pipe through the slot, which passes through the casing and is placed outside the compressor.

[0017] Furthermore, when a compressor has a gas injection and enthalpy-increasing structure, it is divided into two types: compressors with gas injection pipes and compressors without gas injection pipes.

[0018] Furthermore, when the compressor is equipped with a gas supply pipe, the bottom end of the gas supply pipe is fixedly installed on the upper part of the fixed scroll and communicates with its internal cavity, and the top end passes through the top cover and is placed outside the compressor; the cooling pipe branches pass through the slots to converge into a cooling pipe, which passes through the housing and is placed outside the compressor.

[0019] Furthermore, when the compressor does not have a gas supply pipe, the cooling pipe branches converge into a cooling pipe through the slot, and are connected to the fixed vortex gas supply channel through the upper support. The fixed vortex gas supply channel is connected to the internal cavity.

[0020] An air conditioning system employing an internal high-pressure compressor includes: a compressor, a four-way reversing valve, a condenser, and an evaporator;

[0021] Furthermore, the output end of the evaporator is connected to the input end of the four-way reversing valve, and the output end of the four-way reversing valve is connected to the suction pipe of the compressor.

[0022] Furthermore, the input end of the condenser is connected to the output end of the four-way reversing valve, and the input end of the four-way reversing valve is connected to the discharge pipe of the compressor.

[0023] Furthermore, air conditioning systems using internal high-pressure compressors have different system structures because the compressors used are divided into those without a gas injection enthalpy enhancement structure and those with a gas injection enthalpy enhancement structure.

[0024] Furthermore, when the compressor does not have a gas injection and enthalpy enhancement structure, the evaporator outlet is connected to the compressor's cooling pipe inlet, and the cooling pipe outlet is connected to the evaporator through solenoid valve A and expansion valve;

[0025] Furthermore, when the compressor has a gas injection and enthalpy enhancement structure, it is also divided into two forms: with a gas injection pipe and without a gas injection pipe.

[0026] Furthermore, when the compressor with the gas injection and enthalpy enhancement structure also has a gas injection pipe, an economizer is also installed inside the system; the auxiliary circuit of the economizer is connected to the gas injection pipe of the compressor through solenoid valve B; the main circuit inlet of the economizer is connected to the condenser, and the main circuit outlet of the economizer is connected to the evaporator inlet through solenoid valve A and expansion valve; the main circuit branch before the economizer is connected to the compressor cooling circuit inlet, and the cooling circuit outlet and the main circuit outlet of the economizer converge and connect to solenoid valve A and expansion valve;

[0027] Furthermore, when the compressor with the gas injection and enthalpy enhancement structure does not have a gas injection pipe, an economizer is also installed inside the system; the auxiliary circuit of the economizer is connected to the cooling pipe inlet of the internal high-pressure compressor through solenoid valve B; the main circuit inlet of the economizer is connected to the condenser, and the main circuit outlet of the economizer is connected to the evaporator inlet through solenoid valve A and expansion valve.

[0028] This invention employs an internal high-pressure compressor and air conditioning system. Through medium- or low-temperature refrigerant within the system, heat exchange occurs with the compressor stator, lowering the stator temperature and consequently reducing the overall motor temperature. This improves motor operating efficiency, thereby enhancing compressor efficiency. The reduced motor temperature also allows the compressor to operate at even lower temperatures (i.e., low evaporation conditions), addressing the problem of low reliability in low-temperature heat pump units. For conventional operating conditions, if extreme compressor efficiency is not required, the reduced motor temperature allows for a smaller motor thickness, saving motor costs and increasing the compressor's economic benefits.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] 1. The internal high-pressure compressor provided by this utility model reduces the motor temperature through cooling pipes, thereby improving the compressor's operating efficiency and achieving energy efficiency improvement across all operating conditions.

[0031] 2. The internal high-pressure compressor provided by this utility model can greatly improve the previous internal high-pressure compressors, which had high motor heat generation and high temperature, making them difficult to use and with short service life. It can achieve stable, reliable, and continuous wide-range operation at lower evaporation temperatures, greatly improving the problem of using low ambient temperature heat pumps.

[0032] 3. The internal high-pressure compressor provided by this utility model has a simple structure, low design cost, and wide application range. Combined with the system control method provided by this utility model, it can be widely applied to current air conditioning units.

[0033] In summary, the technical solution of this utility model solves the problems of low operating efficiency and small operating range caused by high motor temperature in existing internal high-pressure compressor technology. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1This is a schematic diagram of the internal high-pressure compressor structure of the present invention, which has a gas replenishment and enthalpy enhancement structure and a gas replenishment pipe.

[0036] Figure 2 This is a schematic diagram of the internal high-pressure compressor structure of the present invention, which has a gas replenishment and enthalpy enhancement structure but no gas replenishment pipe.

[0037] Figure 3 This is a schematic diagram of the internal high-pressure compressor structure of this utility model that does not have a gas replenishment and enthalpy enhancement structure;

[0038] Figure 4 This is a schematic diagram of the interface shape between the stator lamination slot and the cooling pipe branch of this utility model.

[0039] Figure 5 This is a system diagram of an internal high-pressure compressor structure with a gas replenishment and enthalpy enhancement structure and a gas replenishment pipe, according to the present invention.

[0040] Figure 6 This is a system diagram of an internal high-pressure compressor structure of the present invention, which has a gas replenishment and enthalpy enhancement structure but does not have a gas replenishment pipe.

[0041] Figure 7 This is a system diagram of the internal high-pressure compressor structure of this utility model that does not have a gas replenishment and enthalpy enhancement structure;

[0042] In the diagram: 1. Intake pipe; 2. Top cover; 3. Fixed scroll; 4. Moving scroll; 5. Upper support; 6. Cross ring; 7. Exhaust pipe; 8. Crankshaft; 9. Motor stator; 10. Motor rotor; 11. Housing; 12. Lower support assembly; 13. Lower cover; 14. Cooling pipe; 15. Air supply pipe; 16. Oil suction pipe; 17. Oil sump; 18. Cooling pipe branch; 19. Cooling pipe branch cross section; 21. Motor stator lamination; 22. Cooling pipe inlet; 23. Cooling pipe outlet; 24. Fixed scroll air supply channel; 30. Internal high-pressure compressor; 31. Four-way reversing valve; 32. Condenser; 33. Evaporator; 34. Economizer; 35a. Solenoid valve A; 35b. Solenoid valve B; 36. Expansion valve. Detailed Implementation

[0043] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0047] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0048] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0049] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0050] like Figure 1-3 As shown, the internal high-pressure compressor; the main body is compressor 30; compressor 30 includes: suction pipe 1, upper cover 2, fixed scroll 3, moving scroll 4, upper support 5, cross ring 6, exhaust pipe 7, crankshaft 8, motor stator 9, motor rotor 10, housing 11, lower support assembly 12 and lower cover 13;

[0051] The fixed scroll 3 and the moving scroll 4 are assembled in a relative fit; the fixed scroll 3 is fixedly connected to the upper support 5 by bolts; the moving scroll 4 is assembled on the top of the crankshaft 11;

[0052] The upper part of the fixed vortex 3 is provided with a suction pipe 1. The bottom end of the suction pipe 1 is fixedly installed on the upper part of the fixed vortex 3 and is the same as its internal cavity. The top end passes through the upper cover 2 and is placed outside the compressor.

[0053] The cross ring 6 is placed between the upper support and the fixed scroll. The keys of the cross ring 6 are placed on the fixed scroll 3 and the moving scroll 4 respectively to prevent the moving scroll 4 from rotating during the operation of the compressor.

[0054] The moving scroll 4, driven by the electric motor and via the crankshaft 8, works in conjunction with the stationary scroll 3 to perform compression.

[0055] The motor consists of a motor stator 9 and a motor rotor 10. The motor stator 9 is interference-fitted into the housing 11, and the motor rotor 10 is interference-fitted onto the crankshaft 8.

[0056] The crankshaft 8 is placed between the upper support 5 and the lower support assembly 12, and oil is supplied from the oil pool 17 of the lower cover 13 to various locations through the oil suction pipe 16 in the lower support assembly 12.

[0057] The compressor 30 also includes a cooling pipe 14; the cooling pipe 14 passes through the compressor housing 11 and enters the compressor interior, where it contacts the motor stator 9 for heat exchange, thereby cooling the motor.

[0058] After entering the compressor, the cooling pipe 14 is split into multiple cooling pipe branches 18;

[0059] like Figure 4 As shown, the motor stator 9 is made of stator laminations 21 with a special shape, and the stator laminations 21 have multiple slots 20; the cooling pipe branches 18 pass through the slots 20 and contact the motor stator 9 for heat exchange. The cross-section 19 of the cooling pipe branches and the shape of the slots 20 can be set to a circular or rectangular shape or other shapes with a large contact area. The large contact area between the two is beneficial to the cooling of the motor stator; the cooling pipe branches 18 and the slots 20 can be filled and fixed with high thermal conductivity materials such as alumina and aluminum nitride, or high thermal conductivity silicone grease can be added to increase the heat conduction effect.

[0060] like Figure 1-3 As shown, the cooling pipe branch 18 extends from the reverse side of the motor stator 9 to the positive side of the motor stator 9 and converges into a cooling pipe 14;

[0061] like Figure 1 As shown, the compressor has a gas injection and enthalpy enhancement structure and a gas injection pipe 15 structure. The bottom end of the gas injection pipe 15 is fixedly installed on the upper part of the fixed scroll 3 and communicates with its internal cavity. The top end passes through the upper cover 2 and is placed outside the compressor. The cooling pipe branch 18 passes through the slot 20 and then converges into a cooling pipe 14, which passes through the housing 11 and is placed outside the compressor.

[0062] like Figure 2 As shown, the compressor has a gas injection and enthalpy enhancement structure, but no gas injection pipe structure. The cooling pipe 14 passes through the compressor housing 11 and enters the compressor interior, where it is divided into multiple cooling pipe branches 18. These branches converge into the cooling pipe 14 through the slot 20 and are connected to the fixed vortex gas injection channel 24 via the upper support 5. The fixed vortex gas injection channel 24 communicates with the internal cavity.

[0063] like Figure 3 As shown, when the compressor does not have a gas injection and enthalpy enhancement structure, the cooling pipe branch 18 passes through the slot 20 and then converges into the cooling pipe 14, which passes through the housing 11 and is placed outside the compressor.

[0064] As shown in Figures 5-7, an air conditioning system employing an internal high-pressure compressor includes an internal high-pressure compressor 30. The air conditioning system also includes an expansion valve 36, a solenoid valve 35, a four-way reversing valve 31, a condenser 32, and an evaporator 33.

[0065] The output end of the evaporator 33 is connected to the input end of the four-way reversing valve 31, and the output end of the four-way reversing valve 31 is connected to the suction pipe 1 of the internal high-pressure compressor 30.

[0066] The input end of the condenser 32 is connected to the output end of the four-way reversing valve 31, and the input end of the four-way reversing valve 31 is connected to the exhaust pipe 7 of the internal high-pressure compressor 30.

[0067] like Figure 5-6 As shown, the system uses Figure 1 and Figure 2 The compressor structure shown is an internal high-pressure compressor with a gas injection and enthalpy-increasing structure. The system is also equipped with an economizer 34.

[0068] like Figure 5 As shown, the system uses Figure 1 The compressor shown has a gas supply pipe 15. The auxiliary line of the economizer 34 in the system is connected to the gas supply pipe 15 of the internal high-pressure compressor 30 through solenoid valve B 35b. The main inlet of the economizer 34 is connected to the condenser 32, and the main outlet of the economizer 34 is connected to the inlet of the evaporator 33 through solenoid valve A 35a and expansion valve 36. The main branch of the economizer 34 is connected to the inlet 22 of the compressor cooling pipe, and the outlet 23 of the cooling pipe converges with the main outlet of the economizer 34 and is connected to solenoid valve A 35a and expansion valve 36.

[0069] like Figure 6 As shown, the system uses Figure 2 The compressor shown has no gas supply line. The auxiliary line of the economizer 34 in the system is connected to the cooling line inlet 22 of the internal high-pressure compressor 30 through solenoid valve B35b. The main line inlet of the economizer 34 is connected to the condenser 32, and the main line outlet of the economizer 34 is connected to the inlet of the evaporator 33 through solenoid valve A35a and expansion valve 36.

[0070] like Figure 7 As shown, the system uses Figure 3 The compressor shown is a compressor without a gas injection and enthalpy-increasing structure. There is no economizer 34 in the system. The outlet of the evaporator 33 is connected to the inlet 22 of the compressor cooling pipe. The outlet 23 of the cooling pipe is connected to the evaporator 33 through the solenoid valve A35a and the expansion valve 36.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An internal high-pressure type compressor, comprising a compressor (30); the compressor (30) comprising: The compressor comprises an intake pipe (1), an upper cover (2), a fixed scroll (3), a moving scroll (4), an upper support (5), a cross ring (6), an exhaust pipe (7), a crankshaft (8), a motor stator (9), a motor rotor (10), a housing (11), a lower support assembly (12), and a lower cover (13). The fixed scroll (3) and the moving scroll (4) are fitted together. The fixed scroll (3) is fixedly connected to the upper support (5) by bolts. The moving scroll (4) is mounted on the top of the crankshaft (8). An intake pipe (1) is provided on the upper part of the fixed scroll (3). The bottom end of the intake pipe (1) is fixedly mounted on the upper part of the fixed scroll (3) and is the same as its internal cavity. The top end passes through the upper cover (2) and is placed outside the compressor. The exhaust pipe (7) passes through the compressor housing (11) and enters the compressor. At the lower part of the upper support (5); a cross ring (6) is placed between the upper support and the fixed scroll, and the key of the cross ring (6) is placed on the fixed scroll (3) and the moving scroll (4) respectively, to prevent the moving scroll (4) from rotating during the operation of the compressor; the moving scroll (4) compresses in conjunction with the fixed scroll (3) under the drive of the motor through the crankshaft (8); the motor consists of a motor stator (9) and a motor rotor (10), the motor stator (9) is interference-fitted into the inside of the housing (11), and the motor rotor (10) is interference-fitted onto the crankshaft (8); the crankshaft (8) is placed between the upper support (5) and the lower support assembly (12), and supplies oil from the oil sump (17) of the lower cover (13) to various places through the oil suction pipe (16) in the lower support assembly (12); its characteristics are: The compressor (30) is also provided with a cooling pipe (14); The cooling pipe (14) passes through the compressor housing (11) and enters the compressor interior, where it contacts the motor stator (9) for heat exchange, thereby cooling the motor.

2. The internal high-pressure compressor according to claim 1, characterized in that: After entering the compressor, the cooling pipe (14) is divided into multiple cooling pipe branches (18). The motor stator (9) is made of stator laminations (21), and the stator laminations (21) have multiple slots (20). The cooling pipe branch (18) extends from the reverse guide side of the motor stator (9) to the positive guide side of the motor stator (9) through the slot (20) and converges into a cooling pipe (14). The cooling pipe branch (18) has a cooling pipe branch section (19) that contacts the slot (20) for heat exchange. The cooling pipe branch section (19) and the slot (20) can be either circular or rectangular. The large contact area between them is beneficial for cooling the motor stator. The cooling pipe branch (18) and the slot (20) are filled and fixed by high thermal conductivity materials such as alumina and aluminum nitride. Alternatively, high thermal conductivity silicone grease can be added to increase the heat conduction effect.

3. The internal high-pressure compressor according to claim 1, characterized in that: The compressor (30) includes two structures: one without a gas replenishment and enthalpy enhancement structure and the other with a gas replenishment and enthalpy enhancement structure.

4. The internal high-pressure compressor according to claim 3, characterized in that: When the compressor (30) does not have a gas replenishment and content enhancement structure, multiple cooling pipe branches (18) converge into a cooling pipe (14) through the slot (20), and pass through the housing (11) to be placed outside the compressor.

5. The internal high-pressure compressor according to claim 3, characterized in that: When the compressor (30) has a gas replenishment and enthalpy enhancement structure, it is divided into two forms: compressor (30) with gas replenishment pipe (15) and compressor (30) without gas replenishment pipe (15); When the compressor (30) is equipped with a gas supply pipe (15), the bottom end of the gas supply pipe (15) is fixedly mounted on the upper part of the fixed vortex (3) and communicates with its internal cavity, and the top end passes through the upper cover (2) and is placed outside the compressor; the cooling pipe branch (18) passes through the slot (20) to converge into a cooling pipe (14), passes through the housing (11), and is placed outside the compressor; When the compressor (30) does not have a gas supply pipe (15), the cooling pipe branch (18) converges into a cooling pipe (14) through the slot (20), and is connected to the fixed vortex gas supply channel (24) through the upper support (5). The fixed vortex gas supply channel (24) is connected to the internal cavity.

6. An air conditioning system employing an internal high-pressure compressor, characterized in that: The air conditioning system using an internal high-pressure compressor includes: a compressor (30), a four-way reversing valve (31), a condenser (32), and an evaporator (33). The output end of the evaporator (33) is connected to the input end of the four-way reversing valve (31), and the output end of the four-way reversing valve (31) is connected to the suction pipe (1) of the compressor (30); The input end of the condenser (32) is connected to the output end of the four-way reversing valve (31), and the input end of the four-way reversing valve (31) is connected to the exhaust pipe (7) of the compressor (30).

7. The air conditioning system employing an internal high-pressure compressor according to claim 6, characterized in that: The air conditioning system using an internal high-pressure compressor has different system structures because the compressor (30) used is divided into one without a gas replenishment and one with a gas replenishment and enthalpy increase structure. When the compressor (30) does not have a gas replenishment and enthalpy increase structure, the outlet of the evaporator (33) is connected to the inlet (22) of the cooling pipe of the compressor (30), and the outlet (23) of the cooling pipe is connected to the evaporator (33) through the solenoid valve A (35a) and the expansion valve (36); When the compressor (30) has a gas replenishment and enthalpy enhancement structure, it is also divided into two forms: one with a gas replenishment pipe (15) and the other without a gas replenishment pipe (15). When the compressor (30) with the gas replenishment and enthalpy enhancement structure also has a gas replenishment pipe (15), an economizer (34) is also installed inside the system; the auxiliary circuit of the economizer (34) is connected to the gas replenishment pipe (15) of the compressor (30) through the solenoid valve B (35b); the main circuit inlet of the economizer (34) is connected to the condenser (32), and the main circuit outlet of the economizer (34) is connected to the inlet of the evaporator (33) through the solenoid valve A (35a) and the expansion valve (36); the main circuit branch of the economizer (34) is connected to the inlet (22) of the compressor cooling pipe, and the cooling pipe outlet (23) converges with the main circuit outlet of the economizer (34) and is connected to the solenoid valve A (35a) and the expansion valve (36); When the compressor (30) with the gas replenishment and enthalpy enhancement structure does not have a gas replenishment pipe (15), an economizer (34) is also installed inside the system; the auxiliary circuit of the economizer (34) is connected to the cooling pipe inlet (22) of the internal high-pressure compressor (30) through a solenoid valve B (35b).

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