Air conditioner and compressor

Abstract

The present disclosure relates to the field of compressors, and in particular to an air conditioner and a compressor. The compressor comprises a compressor main body, a sealing cover, a frequency converter module, a flow guide assembly and a heat exchanger assembly; the sealing cover is arranged on a side surface of the compressor main body, so as to form a mounting chamber between the inner periphery of the sealing cover and the side surface of the compressor, the frequency converter module, the flow guide assembly and the heat exchanger assembly all being arranged in the mounting chamber; the flow guide assembly is used for guiding and driving air within the mounting chamber to flow along a set path, so as to form recirculating air that flows through the heat exchanger assembly and the frequency converter module; a refrigerant can be introduced into the heat exchanger assembly to exchange heat with the recirculating air; the cooled recirculating air flows to the frequency converter module to cool the frequency converter module. The compressor can reduce the temperature difference between the air in the frequency converter module and the mounting chamber and a compressor casing, so as to avoid the occurrence of condensation at live components of the frequency converter module, thus reducing the probability of circuit failures and the risk of fires caused by short circuits.

Description

Air conditioners and compressors

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on December 1, 2023, with application number 202311645417.9 and invention name “AIR CONDITIONER AND COMPRESSOR”, the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the field of compressors, and in particular to an air conditioner and a compressor. Background Art

[0003] The integrated centrifugal compressor integrates the compressor and inverter into a whole, and distributes the inverter control module on the compressor. Compared with traditional compressors, it has many advantages such as compact structure, energy saving and low consumption, easy installation and maintenance, etc. It has broad application prospects in some places with obvious restrictions on compressor size, such as data rooms.

[0004] However, traditional integrated centrifugal compressors still have certain limitations during use. This is because integrated centrifugal compressors are highly integrated with the compressor and key heat-generating devices such as the inverter rectifier, inverter and filter devices. At present, most integrated compressors often have the problem that due to the dense distribution of inverter devices, heat is difficult to dissipate, the ambient temperature inside the inverter cavity is high, and the surface temperature of the compressor shell is low. This can easily cause condensation on the control board and related controller electronic components. At the very least, the condensation water will cause malfunctions of the live devices. What's more, severe condensation may even cause safety accidents such as fire.

[0005] Summary of the Invention

[0006] The present disclosure provides an air conditioner and a compressor, which can reduce the temperature difference between the air in the inverter module and the installation cavity and the compressor casing, avoid condensation on the live components in the installation cavity, especially at the inverter module, reduce the probability of circuit failure and the risk of fire caused by short circuit, and improve the stability of compressor operation.

[0007] In a first aspect, the present disclosure provides a compressor, comprising:

[0008] Compressor body;

[0009] A sealing cover is connected to a side surface of the compressor body and is configured to form a mounting cavity;

[0010] A frequency converter module is arranged in the installation cavity;

[0011] a guide assembly, disposed in the installation cavity, configured to guide and drive the air in the installation cavity to circulate along a set path, thereby forming circulating air for cooling the inverter module;

[0012] The heat exchanger assembly is arranged in the installation cavity and is configured to exchange heat with the circulating air flowing through the heat exchanger assembly and reduce the temperature of the circulating air.

[0013] In some embodiments, the heat exchanger assembly comprises:

[0014] A refrigerant tank is provided on the top of the compressor body and is configured to introduce and discharge circulating refrigerant;

[0015] a first fin, disposed in the refrigerant pool and capable of exchanging heat with the circulating refrigerant;

[0016] The second fin is thermally connected to the first fin and can exchange heat with the circulating air;

[0017] A partition is provided between the first fin and the second fin and seals the refrigerant pool.

[0018] In some embodiments, the heat exchanger assembly further includes a flow guide shell, the flow guide shell is provided to cover the second fin, and the flow guide shell is provided with an air inlet side and an air outlet side that are interconnected.

[0019] In some embodiments, the compressor body is provided with a refrigerant inlet pipe and a refrigerant outlet pipe, and both the refrigerant inlet pipe and the refrigerant outlet pipe are connected to the refrigerant pool.

[0020] In some embodiments, a drive motor is provided inside the compressor body, and the refrigerant inlet pipe and / or the refrigerant outlet pipe are wound between the top of the drive motor and the bottom of the inverter module.

[0021] In some embodiments, the refrigerant outlet pipe is provided with a throttling element for regulating the flow of the circulating refrigerant.

[0022] In some embodiments, the end of the refrigerant outlet pipe away from the refrigerant pool includes a first throttling branch and a second throttling branch arranged in parallel;

[0023] The throttling element includes a throttle valve provided on the first throttling branch and a throttle hole plug provided on the second throttle branch, and the throttle hole plug maintains a normally open state.

[0024] In some embodiments, the inverter module includes:

[0025] A rectifier module is located above the drive motor of the compressor body;

[0026] an inverter module, arranged side by side with the rectifier module and forming an air supply duct between the inverter module and the rectifier module, wherein a first end of the air supply duct is connected to the air outlet side of the air guide housing;

[0027] A filter module is protruding from one side edge of the compressor body;

[0028] The heat exchanger assembly is arranged at the first end of the air supply duct, and the filter module is arranged at a side of the compressor body away from the heat exchanger assembly.

[0029] In some embodiments, the flow guide assembly includes:

[0030] a first fan, disposed at a first end of the air supply duct, wherein an air inlet of the first fan is disposed corresponding to an air outlet side of the air guide housing;

[0031] The second fan is provided between the inverter module and the filter module, and is configured to guide part of the circulating air of the inverter module to the filter module.

[0032] In some embodiments, a return air duct is formed on a side of the installation cavity away from the filter module. The return air duct is provided on both sides of the heat exchanger assembly and is connected to the air inlet side of the air guide shell.

[0033] In some embodiments, the rectifier module is provided with a first temperature sensor for detecting its temperature; the inverter module is provided with a second temperature sensor for detecting its temperature; and the filter module is provided with a third temperature sensor for detecting its temperature.

[0034] In some embodiments, a sealing ring is provided on the connecting mating surface between the sealing cover and the compressor body; and / or thermal conductive silicone grease is provided between the partition and the outer periphery of the refrigerant pool.

[0035] In a second aspect, the present disclosure provides an air conditioner using the compressor provided in the above embodiment.

[0036] The above technical solution provided by the embodiment of the present disclosure has the following advantages compared with the related art: the inverter module is installed by means of the installation cavity formed between the sealing cover and a group of side surfaces of the compressor body, thereby realizing the integration of the inverter module and the compressor body; the setting of the sealing cover can isolate the external air to a certain extent, reducing the moisture in the external air from entering the installation cavity and generating condensation; the guide assembly can guide and drive the air flow inside the installation cavity, forming a circulating air flowing through the inverter module and the heat exchanger assembly. The heat exchanger assembly can pass the circulating refrigerant and the circulating air in the installation cavity for heat exchange, reduce the wind temperature of the circulating air, fully cool the inverter module, reduce the temperature difference between the inverter module and the air in the installation cavity and the compressor casing, avoid condensation in the installation cavity, reduce the probability of circuit failure and the risk of fire caused by short circuit, and improve the stability of compressor operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0040] FIG1 is an overall schematic diagram of a compressor provided by an embodiment of the present disclosure;

[0041] FIG2 is a top view of the compressor in FIG1 with the sealing cover removed;

[0042] FIG3 is a direct view of the heat exchanger assembly in FIG1 ;

[0043] FIG4 is a side view of FIG3;

[0044] FIG5 is a schematic diagram of the installation of the heat exchanger assembly and the first fan;

[0045] FIG6 is a structural diagram of the first fin and the second fin in FIG5 ;

[0046] FIG7 is a schematic diagram of a throttling element of a compressor according to an embodiment of the present disclosure.

[0047] Explanation of the accompanying drawings: 10-compressor body; 11-refrigerant inlet pipe; 12-refrigerant outlet pipe; 20-sealing cover; 30-heat exchanger assembly; 31-first fin; 32-partition; 33-second fin; 34-flow guide cover; 40-throttling element; 41-throttle valve; 42-throttle hole plug; 50-rectifier module; 60-inverter module; 70-filter module; 80-first fan; 90-second fan. DETAILED DESCRIPTION

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0049] The disclosure below provides many different embodiments or examples for implementing different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0050] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0051] In order to solve the technical problem in the related art that the temperature difference between the inverter module and the compressor housing of the integrated integrated compressor is large, which easily causes condensation in the inverter module, causing circuit failure, short circuit and even fire, the present disclosure provides an air conditioner and compressor, which can fully cool the inverter module, reduce the temperature difference between the inverter module and the compressor housing and the sealing cover 20, and the temperature difference between the air in the installation cavity and the compressor housing and the sealing cover 20, prevent condensation in the installation cavity, especially at the inverter module, reduce the probability of circuit failure and the risk of fire caused by short circuit, and improve the stability of compressor operation.

[0052] The structure of the compressor provided in the embodiment of the present disclosure is suitable for an integrated compressor, which realizes the integration of the inverter module and the compressor body 10. Referring to Figures 1 and 2, the compressor mainly includes a compressor body 10, a sealing cover 20, a guide assembly and a heat exchanger assembly 30. The structure of the compressor body 10 is similar to that of a conventional compressor. The sealing cover 20 is sealed and connected to the outer surface of one side of the compressor body 10, and an installation cavity is formed between the outer surface of the compressor body 10 and the inner periphery of the sealing cover 20. The inverter module, the guide assembly and the heat exchanger assembly 30 are all arranged in the installation cavity and fixed relative to the compressor body 10.

[0053] The sealed cover 20 serves to isolate the external air from the inverter module, effectively reducing the amount of moisture in the external air and the air that enters the installation cavity, thereby reducing condensation. The air guide assembly is used to guide and drive the air in the installation cavity to circulate within the installation cavity along a set path, forming circulating air that flows through the inverter module and the heat exchanger assembly 30. The heat exchanger assembly 30 is used to introduce refrigerant, and utilizes the refrigerant to exchange heat with the circulating air flowing through the heat exchanger assembly 30 to reduce the temperature of the circulating air, thereby improving the cooling capacity of the circulating air on the inverter module, reducing the temperature of the inverter module, and thereby reducing the temperature difference between the inverter module and the compressor body 10 and the sealed cover 20. At the same time, the temperature difference between the air in the installation cavity and the compressor housing and the sealed cover 20 is reduced, reducing condensation in the installation cavity, especially at the inverter module, reducing the probability of circuit failure and the risk of fire caused by short circuit, and improving the stability of compressor operation.

[0054] Continuing to refer to Figures 1 and 2, in a specific embodiment provided in the present disclosure, the sealing cover 20 is fixed on the top of the compressor body 10, so that the installation cavity is formed above the compressor body 10. In other words, the inverter module, the guide assembly and the heat exchanger assembly 30 are all arranged on the top of the compressor body 10. Among them, the heat exchanger assembly 30 includes a refrigerant pool, a first fin 31, a second fin 33 and a partition 32. The refrigerant pool can be formed by being concave relative to the surface of the top shell of the compressor body 10, or a baffle can be convexly provided above the top shell of the compressor body 10, and the baffle is used to enclose a refrigerant pool for storing refrigerant.

[0055] The refrigerant pool can pass in and out refrigerant to realize the circulation of refrigerant. The source of the refrigerant can be a small amount of refrigerant intercepted from the condenser outlet of the air-conditioning system, which is transported to the refrigerant pool through the corresponding pipeline. At the same time, the refrigerant pool is also connected to the evaporator through a pipeline, and the refrigerant after heat exchange with the air in the installation cavity through the heat exchanger assembly 30 is transported to the evaporator to ensure the circulation of the refrigerant.

[0056] The first fins 31 are placed in the coolant pool and immersed in the coolant liquid in the coolant pool. Convection heat exchange with the liquid coolant in the coolant pool removes heat from the first fins 31, thereby reducing the temperature of the first fins 31. The second fins 33 are thermally connected to the first fins 31. Specifically, the two fins 33 can be integrally formed or fixed by abutment with fixing members.

[0057] As shown in Figures 3 to 6, in this embodiment, the first fin 31, the second fin 33 and the partition 32 are integrally formed, the first fin 31 and the second fin 33 are arranged in a one-to-one correspondence, and the partition 32 is fixedly connected between the first fin 31 and the second fin 33, dividing the first fin 31 and the second fin 33 into two parts separated by an upper and a lower part.

[0058] On the one hand, the partition 32 plays a heat conduction role between the first fin 31 and the second fin 33, transferring the heat of the second fin 33 to the first fin 31, which is then carried away by the refrigerant after heat exchange with the refrigerant in the refrigerant pool; on the other hand, it plays a sealing role for the refrigerant pool, preventing the refrigerant in the refrigerant pool from evaporating in the installation cavity, causing a reduction in the circulating refrigerant of the air-conditioning system, and affecting the operation of the air-conditioning system.

[0059] The shape of the partition 32 matches the shape of the refrigerant pool. The size of the partition 32 is usually slightly larger than the size of the refrigerant pool, so that after the first fin 31 is inserted into the refrigerant pool and immersed in the refrigerant, the peripheral edge of the partition 32 can cover the refrigerant pool and fit with the top outer peripheral edge of the refrigerant pool to achieve sealing.

[0060] This embodiment does not limit the shape of the refrigerant pool. In order to facilitate the array arrangement of the first fins 31 and the insertion of the first fins 31 into the refrigerant pool, the refrigerant pool usually adopts a more regular square or rectangular pool body structure, and the shape and size of the partition 32 are adaptively adjusted to correspond to the first fins 31 and the refrigerant pool.

[0061] In some embodiments, in order to reduce the temperature difference between the inverter module and the compressor housing, thermal grease is further provided between the peripheral edge of the partition 32 and the top outer peripheral edge of the refrigerant pool. The thermal grease not only serves as a connection seal between the partition 32 and the refrigerant pool, but also can transfer part of the heat conducted from the second fin 33 to the partition 32 through the thermal grease to the top shell of the heat compressor body 10, and then to the sealing cover 20, thereby reducing the temperature difference between the compressor housing and the sealing cover 20 and the air in the installation cavity, and the temperature difference between the compressor housing and the sealing cover 20 and the inverter module.

[0062] The first fin 31 and the second fin 33 conduct heat through the partition 32, and the heat of the second fin 33 is conducted to the first fin 31, so that the temperature of the second fin 33 is reduced to lower than the temperature of the air in the installation cavity, especially the temperature of the circulating air flowing through the second fin 33. When the circulating air flows through the second fin 33, convection heat exchange occurs with the second fin 33, so that the wind temperature of the circulating air is significantly reduced, which makes it easier for the circulating air to flow to various parts of the inverter module and then cool down the various electronic components of the inverter module, thereby significantly reducing the temperature of the inverter module, improving the consistency of the air temperature in the installation cavity, and reducing the temperature difference between the air in the installation cavity and the top shell and the sealing cover 20 of the compressor body 10.

[0063] In some embodiments, to enhance the convective heat transfer between the circulating air and the heat exchanger assembly 30, the heat exchanger assembly 30 provided in the disclosed embodiments further includes a shroud 34. The shroud 34 is a shroud-like structure that is inverted and disposed around the outer periphery of the second fins 33 and has a cavity. The second fins 33 are disposed within the cavity of the shroud 34. In the illustrated embodiment, the shroud 34 utilizes a square cavity structure that is compatible with the refrigerant pool. The shroud 34 has two opposing side surfaces that are interpenetrating, with the openings on the two opposing side surfaces serving as the air inlet and outlet, respectively.

[0064] The air inlet side allows circulating air to flow into the cavity and exchange heat with the second fins 33 within the cavity. The opening on the other side, opposite the air inlet side, serves as the air outlet side of the air guide housing 34. The air outlet side allows the circulating air, cooled after exchanging heat with the second fins 33 within the cavity, to flow out of the air guide housing 34. The air guide housing 34 and the arrangement of the air inlet and air outlet sides allow the circulating air to flow from the air inlet side to the air outlet side, increasing the speed of the circulating air flowing across the surface of the second fins 33 and enhancing the convective heat exchange efficiency between the circulating air and the second fins 33.

[0065] The width direction of the second fins 33 is preferably aligned with the direction of the circulating air in the air deflector housing 34, and the second fins 33 are preferably arranged parallel to each other, thereby forming a guide air duct between the multiple second fins 33, thereby reducing the wind resistance of the circulating air flowing through the second fins 33. Specifically, the second fins 33 are arranged in multiple groups along the width direction of the air deflector housing 34, that is, in the left-right direction as shown in Figure 5. At the same time, they can also be arranged in a single row or multiple rows along the conveying direction of the circulating air, with the first fins 31 and the second fins 33 arranged in a one-to-one correspondence.

[0066] In some other embodiments, the second fins 33 are arranged in multiple rows, and the second fins 33 in different rows may also be staggered, which is not specifically limited in the present disclosure.

[0067] The setting of the first fins 31 refers to the second fins 33. The first fins 31 are arranged in multiple rows along the flow direction of the liquid refrigerant in the refrigerant pool, and multiple first fins 31 are arranged in each row. The width direction of the fins is preferably arranged parallel to the flow direction of the liquid refrigerant in the refrigerant pool. Such a setting can reduce the flow resistance of the refrigerant when flowing through the first fins 31, increase the flow speed of the refrigerant in the refrigerant pool, and enhance the convective heat exchange efficiency of the first fins 31 and the refrigerant.

[0068] It is understood that the heat exchanger assembly 30 can be formed not only of a refrigerant pool with first fins 31, second fins 33, and baffles 32, but also of a shell-and-tube heat exchanger. The selection of different types of heat exchangers should be based on a comprehensive consideration of refrigerant flow rate, heat exchange efficiency, and heat exchanger size. The configuration of the heat exchanger assembly 30 disclosed herein increases the circulating refrigerant flow rate, reduces the flow resistance of the circulating air, and increases the convective heat exchange area between the circulating air and the second fins 33.

[0069] With reference to FIG1 , in order to facilitate the transport of refrigerant to and from the condensing pool and ensure the circulation of liquid refrigerant, the compressor body 10 is integrated with a refrigerant inlet pipe 11 and a refrigerant outlet pipe 12. The interface at one end of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 extends to the outer side of the compressor body 10, and the other end extends to the refrigerant pool and is connected to the refrigerant pool. The interface of the refrigerant inlet pipe 11 extending to the outer side of the compressor body 10 is used to communicate with the side of the condenser near the refrigerant outlet through a pipeline. The interface of the refrigerant outlet pipe 12 extending to the outer side of the compressor body 10 is used to communicate with the side of the evaporator near the refrigerant outlet through a pipeline.

[0070] The main sections of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 are arranged between the top of the compressor body 10 and the bottom of the inverter module, so that the refrigerant can take away some of the heat from the compressor body 10 and the inverter module during the circulation process. The winding structure of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 can be related to the setting of the part to be cooled. During the specific implementation, the winding fixed position of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 can be flexibly adjusted as needed. Generally speaking, the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 can be hidden in the top shell of the compressor body 10.

[0071] In one embodiment, the drive motor is arranged below the central area of ​​the top shell of the compressor body 10, and the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 are wound between the top of the drive motor and the bottom of the inverter module. While cooling the inverter module, the drive motor of the compressor body 10 can be cooled to a certain extent, thereby improving the stability of the compressor operation.

[0072] It is understandable that the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 can not only be integrated into the top shell portion of the compressor body 10, but corresponding perforations can also be opened in the sealing cover 20 as needed, so that the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 enter the installation cavity through the perforations on the sealing cover 20 and communicate with the refrigerant pool. However, compared to when the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 are integrated between the top of the compressor body 10 and the bottom of the inverter module, there are certain inconveniences in installing and removing the sealing cover 20, and the cooling function of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 cannot be fully utilized.

[0073] In order to achieve cooling of the inverter module under different operating load conditions of the compressor, the temperature difference between the air in the installation cavity and the compressor housing and the sealing cover 20, and the temperature difference between the inverter module and the compressor housing and the sealing cover 20 are reduced to an appropriate range. The compressor provided in the embodiment of the present disclosure also includes a throttling element 40 for adjusting the flow rate of the circulating refrigerant in the refrigerant pool for heat exchange with the first fin 31.

[0074] By means of the throttling element 40, the flow rate of the refrigerant is adjusted, the flow rate of the refrigerant is changed, the convective heat exchange efficiency between the refrigerant and the first fin 31 is adjusted, and the heat conduction speed between the second fin 33 through the partition 32 and the first fin 31 is affected, thereby achieving the control of the wind temperature of the circulating air flowing through the heat exchanger assembly 30, and finally achieving the adjustment of the temperature of the inverter module and the air temperature in the installation cavity, and stabilizing the temperature difference between the inverter module and the compressor housing and the sealing cover plate, and the air in the installation cavity relative to the compressor housing and the sealing cover plate within a suitable range.

[0075] When the inverter module generates a lot of heat, the throttling component can be used to increase the circulating refrigerant flow rate into and out of the refrigerant pool, enhancing heat exchange between the refrigerant and the circulating air at the heat exchanger assembly 30 and improving the inverter module's cooling capacity. When the inverter module generates less heat, the throttling component can be used to appropriately reduce the circulating flow rate into and out of the refrigerant pool.

[0076] In particular, in this embodiment, the throttling element 40 is preferably disposed at the end of the refrigerant outlet pipe 12 away from the refrigerant pool. This arrangement has the following advantages: on the one hand, it facilitates the throttling of the refrigerant before it enters the evaporator for evaporation; on the other hand, it prevents the throttling of the refrigerant before it enters the refrigerant pool, which would cause the refrigerant to undergo phase change and absorb heat within the refrigerant pool, causing the temperature of the inverter module to be significantly lower than the ambient temperature and resulting in condensation.

[0077] In order to facilitate the regulation of the flow of the circulating refrigerant flowing through the heat exchanger assembly 30, the compressor provided in the embodiment of the present disclosure also includes a temperature detection module for detecting the temperature of the inverter module. For example, the inverter module includes a rectifier module 50, an inverter module 60 and a filter module 70, and the temperature detection module includes a first temperature sensor provided at the rectifier module 50 for detecting the temperature of the rectifier module 50, a second temperature sensor provided at the inverter module 60 for detecting the temperature of the inverter module 60, and a third temperature sensor provided at the filter module 70 for detecting the temperature of the filter module 70. The first temperature sensor, the second temperature sensor, the third temperature sensor and the throttling element 40 are all connected to the controller of the compressor or air conditioner so that the controller regulates the flow of the refrigerant based on the temperature of each module of the inverter module. When the temperature of each module of the inverter module exceeds the respective set temperature, the controller controls the throttling element 40 to adjust and increase the flow of the circulating refrigerant. When the temperature of each module of the inverter module is lower than the respective set temperature, the controller controls the throttling element 40 to adjust and reduce the flow of the circulating refrigerant.

[0078] The refrigerant flow rate can be regulated not only by directly detecting the temperature values ​​of each module of the rectifier module 50, but also by detecting the temperature difference between the air inlet and air outlet sides of the air guide housing 34, or by detecting the temperature difference between the circulating refrigerant at the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12. For example, a fourth temperature sensor for detecting the inlet temperature of the circulating air is provided on the air inlet side of the air guide housing 34, and a fifth temperature sensor for detecting the outlet temperature of the circulating air is provided on the air outlet side of the air guide housing 34. The opening of the throttling element 40 is adjusted by comparing the temperature difference between the circulating air on the air inlet and air outlet sides of the air guide housing 34, thereby achieving refrigerant flow regulation.

[0079] When the temperature difference of the circulating air between the air inlet side and the air outlet side of the deflector shell 34 is large, it indicates that the heat generated by the inverter is high. When the temperature difference between the two is greater than the first set temperature difference, the flow rate of the circulating refrigerant can be adjusted to increase; when the temperature difference between the two is less than the second set temperature difference, the flow rate of the circulating refrigerant can be adjusted to decrease; when the temperature difference between the two is greater than the second set temperature difference and less than the first set temperature difference, the current opening of the throttling element 40 is maintained to keep the flow rate of the circulating refrigerant unchanged.

[0080] Referring to Figures 2 and 7, in some embodiments, two throttling branches are provided in parallel at one end of the refrigerant outlet pipe 12 away from the refrigerant pool, which are defined as a first throttling branch and a second throttling branch respectively. The throttling element 40 includes a throttle valve 41 and a throttle hole plug 42. The throttle valve 41 is provided in the first throttle branch, and the throttle hole plug 42 is provided in the first throttle branch. The throttle valve 41 mainly plays the role of throttling pressure reduction and regulating the flow rate of the circulating refrigerant; while the aperture of the throttle hole plug 42 is smaller than the diameter of the first throttle branch, and the throttle hole plug 42 remains in a normally open state to prevent the throttle valve 41 from malfunctioning and the circulating refrigerant from being unable to flow out.

[0081] In some embodiments, the arrangement of the inverter module can be referred to in FIG2 . The inverter module mainly includes three parts: a rectifier module 50, an inverter module 60, and a filter module 70. A drive motor is provided inside the compressor body 10. The rectifier module 50 is arranged at the top of the compressor body 10 and above the drive motor. The inverter module 60 and the rectifier module 50 are arranged side by side. The inverter module 60 is located on the top right side of the compressor body 10, and the rectifier module 50 is located on the top left side of the compressor body 10. This arrangement allows the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 to be arranged between the rectifier module 50 and the drive motor, thereby achieving a certain degree of cooling of the rectifier module 50 and the drive motor while circulating the refrigerant.

[0082] An air supply duct of a predetermined width is formed between adjacent sides of the rectifier module 50 and the inverter module 60. The heat exchanger assembly 30 is disposed at the first end of the air supply duct, and the outlet side of the air guide housing 34 is in communication with the air supply duct. The filter module 70 is disposed on the side of the compressor body 10 away from the heat exchanger assembly 30. Because the filter module 70 includes a large number of capacitors, the installation area of ​​the filter module 70 is protruded away from the heat exchanger assembly 30 relative to the edge of the compressor body 10. This allows the circulating air flowing out of the outlet side of the heat exchanger assembly 30 to be transmitted to the rectifier module 50, the inverter module 60, and the filter module 70, respectively, through the cooperation of the air supply duct and the air guide assembly. The circulating air cools the rectifier module 50, the inverter module 60, and the filter module 70 before returning to the inlet side of the heat exchanger assembly 30.

[0083] Continuing to refer to FIG2 , in some embodiments, the air guide assembly includes a first fan 80 and a second fan 90. The first fan 80 and the second fan 90 are preferably axially staggered, wherein the first fan 80 is arranged at the first end of the air supply duct, that is, the second fan 90 is preferably staggered with the air supply duct. The air inlet of the first fan 80 is connected to the air outlet side of the air guide shell 34. The first fan 80 can be installed on the air outlet side of the air guide shell 34. The setting of the air guide shell 34 should ensure that the distance between the air inlet of the first fan 80 and the second fin 33 is between 20-30 mm to avoid affecting the circulating air volume. A baffle structure is provided between the second end of the air supply duct and the filter module 70, and air outlets are provided on both sides of the second end of the air supply duct, which are respectively connected to the rectifier module 50 and the inverter module 60.

[0084] Under the action of the first fan 80, the circulating air is delivered to the second end of the air supply duct. It then turns left and right at the baffle at the second end of the air supply duct and is delivered to the rectifier module 50 and the inverter module 60, respectively. The circulating air delivered to the rectifier module 50 is circulated counterclockwise as shown in FIG2 and delivered to the air inlet side of the air deflector housing 34. The circulating air delivered to the inverter module 60 is circulated clockwise as shown in FIG2 and delivered to the air inlet side of the air deflector housing 34. The main body of the filter module 70 is located on the side of the air supply duct that deviates from the inverter module 60. The second fan 90 is disposed between the inverter module 60 and the filter module 70. The second fan 90 is used to divert a portion of the circulating air delivered to the inverter module 60 to the filter module 70. After circulating in the filter module 70, the air is delivered to the return air side of the inverter module 60. The return air from the inverter module 60 is then circulated and delivered to the air inlet side of the air deflector housing 34.

[0085] In some embodiments, in order to facilitate the air intake on the air inlet side of the air deflector shell 34, a return air duct is formed on the top of the compressor body 10 close to the side of the air deflector shell 34, that is, the side of the installation cavity away from the filter module 70. The return air duct can be formed by the baffle structure on both sides of the air deflector shell 34 in conjunction with the sealing cover 20, or it can be formed by electrical components installed on the top of the compressor body 10 in conjunction with the air deflector shell 34. The electrical components are equidistant from the edge of the top of the compressor body 10 close to the side of the air deflector shell 34. After the sealing cover 20 is buckled onto the compressor body 10, the above-mentioned return air duct is formed between the electrical components and the inner wall of the sealing cover 20.

[0086] In order to ensure the sealing of the installation cavity, a sealing ring can be provided on the connection surface between the sealing cover 20 and the compressor body 10. The sealing ring can improve the sealing between the connection between the two, and prevent moisture in the external air from entering the installation cavity through the connection surface between the two and generating condensation on the inner wall of the installation cavity, thereby ensuring the safety of the inverter module and the stable operation of the compressor.

[0087] It should be understood that the positions of the rectifier module 50, the inverter module 60 and the filter module 70 are not limited to the arrangement shown in Figure 2. The relative positions of the three can be flexibly adjusted as needed, and the guide component is not limited to the axial staggered arrangement of the first fan 80 and the second fan 90. As long as it can guide the circulating air to flow through the heat exchanger component 30 and cool the various modules of the inverter module, it is applicable to the refrigerant throttling in the refrigerant outlet pipe 12 of the present disclosure, the circulating air exchanges heat with the circulating refrigerant through the heat exchanger component 30 and cools the compressor of the inverter module.

[0088] The embodiment of the present disclosure also provides an air conditioner, which uses the compressor provided in the above embodiment. The air conditioner also includes an evaporator, a condenser, an electronic expansion valve, etc. The compressor is connected to the evaporator, the condenser and the electronic expansion valve through a refrigerant pipeline to form a refrigerant circulation loop of the air conditioner. In addition, a connecting branch is provided on the side of the condenser near the outlet and the side of the evaporator near the inlet. The connecting branch of the condenser is used to connect to the refrigerant inlet pipe 11 of the refrigerant pool, and the connecting branch of the evaporator is used to connect to the refrigerant outlet pipe 12 of the refrigerant pool. For other parts of the air conditioner and the compressor body 10, reference can be made to the relevant technology, and this disclosure will not elaborate on them in detail.

[0089] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0090] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0091] The foregoing description is intended only to provide specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not to be limited to the embodiments shown herein, but is to be construed in the broadest manner consistent with the principles and novel features claimed herein.

Claims

1. A compressor, comprising: Compressor body; A sealing cover shell connected to a side surface of the compressor body and configured to form a mounting cavity; A frequency converter module is arranged in the installation cavity; A guide assembly is disposed in the installation cavity and is configured to guide and drive the air in the installation cavity to circulate along a set path to form circulating wind for cooling the inverter module; The heat exchanger assembly is arranged in the installation cavity and is configured to exchange heat with the circulating air passing through the heat exchanger assembly through the refrigerant to reduce the temperature of the circulating air.

2. The compressor according to claim 1, wherein: The heat exchanger assembly comprises: A refrigerant tank is disposed on the top of the compressor body and is configured to allow the circulating refrigerant to enter and discharge; A first fin is placed in the refrigerant pool and is capable of exchanging heat with the circulating refrigerant; The second fin is thermally connected to the first fin and can exchange heat with the circulating air; A partition is disposed between the first fin and the second fin and seals the refrigerant pool.

3. The compressor according to claim 2, wherein: The heat exchanger assembly further includes a flow guide shell, which is arranged to cover the second fins, and the flow guide shell is provided with an air inlet side and an air outlet side which are interconnected.

4. The compressor according to claim 3, wherein: The compressor body is provided with a refrigerant inlet pipe and a refrigerant outlet pipe, and both the refrigerant inlet pipe and the refrigerant outlet pipe are connected to the refrigerant pool.

5. The compressor according to claim 4, wherein: A driving motor is arranged inside the compressor body, and the refrigerant inlet pipe and / or the refrigerant outlet pipe are wound between the driving motor and the inverter module.

6. The compressor according to claim 4, wherein: The refrigerant outlet pipe is provided with a throttling element for adjusting the flow rate of the circulating refrigerant.

7. The compressor according to claim 6, wherein: The end of the refrigerant outlet pipe away from the refrigerant pool includes a first throttling branch and a second throttling branch arranged in parallel; The throttling element includes a throttling valve arranged on the first throttling branch and a throttling hole plug arranged on the second throttling branch, and the throttling hole plug maintains a normally open state.

8. The compressor according to any one of claims 3 to 7, wherein: The inverter module comprises: A rectifier module is located above the drive motor of the compressor body; an inverter module, arranged side by side with the rectifier module and forming an air supply duct between the inverter module and the rectifier module, wherein a first end of the air supply duct is connected to an air outlet side of the air guide housing; A filter module is protrudingly arranged on one side edge of the compressor body; Wherein, the heat exchanger assembly is arranged at the first end of the air supply duct, and the filter module is arranged at a side of the compressor body away from the heat exchanger assembly.

9. The compressor according to claim 8, wherein: The flow guide assembly comprises: A first fan is disposed at a first end of the air supply duct, and an air inlet of the first fan is disposed corresponding to an air outlet side of the air guide housing; The second fan is disposed between the inverter module and the filter module, and is configured to guide part of the circulating air of the inverter module to the filter module.

10. The compressor according to claim 8, wherein: A return air duct is formed on a side of the installation cavity away from the filter module. The return air duct is disposed on both sides of the heat exchanger assembly and is communicated with the air inlet side of the air guide housing.

11. The compressor according to claim 8, wherein: The rectifier module is provided with a first temperature sensor for detecting its temperature; the inverter module is provided with a second temperature sensor for detecting its temperature; and the filter module is provided with a third temperature sensor for detecting its temperature.

12. The compressor according to claim 11, wherein: A sealing ring is provided on the connecting and matching surfaces of the sealing cover shell and the compressor body.

13. The compressor according to claim 11, wherein: Thermal conductive silicone grease is arranged between the partition and the outer periphery of the refrigerant pool.

14. An air conditioner using the compressor according to any one of claims 1 to 13.

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