Air conditioner and compressor

Abstract

The application relates to the compressor field, in particular to an air conditioner and a compressor. The compressor comprises a compressor main body, a sealed cover, a frequency converter module, a flow guide assembly and a heat exchanger assembly; the sealed cover is arranged on one side surface of the compressor main body, an installation cavity is formed between the inner periphery of the sealed cover and the one side surface of the compressor, the frequency converter module, the flow guide assembly and the heat exchanger assembly are all arranged in the installation cavity, wherein the flow guide assembly is used for guiding and driving the air in the installation cavity to circulate according to a set path, forming circulating air flowing through the heat exchanger assembly and the frequency converter module; the heat exchanger assembly can be used for circulating air to exchange heat with refrigerant, and the circulating air is transported to the frequency converter module to cool the frequency converter module after being cooled. The compressor can reduce the temperature difference between the frequency converter module, the air in the installation cavity and the compressor shell, avoid the condensation phenomenon of the live parts of the frequency converter module, and reduce the circuit failure probability and the risk of fire caused by short circuit.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of compressors, in particular to an air conditioner and a compressor. BACKGROUND

[0002] The integrated centrifugal compressor is an integrated whole of the compressor and the frequency converter, and the frequency converter control module is distributed on the compressor. Compared with the traditional compressor, the integrated centrifugal compressor has the advantages of compact structure, energy saving, low consumption, convenient installation and maintenance, and has a broad application prospect in some places where the size of the compressor is obviously limited, such as data rooms.

[0003] However, the traditional integrated centrifugal compressor still has certain limitations in use, because the integrated centrifugal compressor is highly integrated with the heat generating devices such as the key rectifier, inverter and filter of the compressor and the frequency converter. At present, most integrated compressors often have the problem that the frequency converter devices are densely distributed, the heat is difficult to dissipate, the internal environment temperature of the frequency converter cavity is high, and the surface temperature of the compressor shell is low, which easily causes condensation of the control board and related controller electronic elements. The condensation water may cause failure of the live devices, and in severe cases, it may even cause fire accidents. SUMMARY

[0004] The present application provides an air conditioner and a compressor, which can reduce the temperature difference between the frequency converter module and the air in the installation cavity and the compressor shell, avoid condensation of live devices in the installation cavity, especially in the frequency converter module, reduce the probability of circuit failure and the risk of fire caused by short circuit, and improve the stability of the compressor operation.

[0005] In a first aspect, the present application provides a compressor, comprising:

[0006] a compressor body;

[0007] a sealing shell connected to one side surface of the compressor body, for forming an installation cavity;

[0008] a frequency converter module arranged in the installation cavity;

[0009] a flow guide assembly arranged in the installation cavity, for guiding and driving the air in the installation cavity to circulate along a set path, forming a circulating air for cooling the frequency converter module;

[0010] a heat exchanger assembly arranged in the installation cavity, for passing in refrigerant and circulating air flowing through the heat exchanger assembly to exchange heat, reducing the temperature of the circulating air.

[0011] In some embodiments, the heat exchanger assembly comprises:

[0012] a refrigerant pool arranged on the top of the compressor body for circulating refrigerant in and out;

[0013] a first fin arranged in the refrigerant pool and capable of exchanging heat with the circulating refrigerant;

[0014] a second fin in thermal conduction connection with the first fin and capable of exchanging heat with the circulating air;

[0015] a partition plate arranged between the first fin and the second fin and sealing the refrigerant pool.

[0016] In some embodiments, the heat exchanger assembly further comprises a flow guide shell, the flow guide shell is arranged on the second fin, and the flow guide shell is provided with an air inlet side and an air outlet side penetrating each other.

[0017] In some embodiments, the compressor body is provided with a refrigerant inlet pipe and a refrigerant outlet pipe, both of which are in communication with the refrigerant pool.

[0018] In some embodiments, the inside of the compressor body is provided with a driving motor, and the refrigerant inlet pipe and / or the refrigerant outlet pipe are arranged around the top of the driving motor and the bottom of the frequency converter module.

[0019] In some embodiments, the refrigerant outlet pipe is provided with a throttling element for adjusting the flow of circulating refrigerant.

[0020] In some embodiments, the end of the refrigerant outlet pipe away from the refrigerant pool comprises a first throttling branch and a second throttling branch arranged in parallel;

[0021] The throttling element comprises a throttle valve arranged in the first throttling branch and a throttling hole plug arranged in the second throttling branch, and the throttling hole plug remains in an open state.

[0022] In some embodiments, the frequency converter module comprises:

[0023] a rectifier module located above the driving motor of the compressor body;

[0024] an inverter module arranged side by side with the rectifier module and forming an air supply air duct between the rectifier module, the first end of the air supply air duct corresponding to the air outlet side of the flow guide shell;

[0025] a filter module protruding from one side edge of the compressor body;

[0026] Wherein, the heat exchanger assembly is arranged at the first end of the air supply air duct, and the filter module is arranged on the side of the compressor body away from the heat exchanger assembly.

[0027] In some embodiments, the air guide assembly comprises:

[0028] a first fan arranged at the first end of the air supply air duct, and an air inlet of the first fan is arranged corresponding to the air outlet side of the air guide shell;

[0029] a second fan arranged between the inverter module and the filter module, and used for guiding part of the circulating air of the inverter module to the filter module.

[0030] In some embodiments, the air return air duct is formed on the side of the mounting cavity away from the filter module, and the air return air duct is arranged on both sides of the heat exchanger assembly and communicates with the air inlet side of the air guide shell.

[0031] In some embodiments, the rectifier module is provided with a first temperature sensor for detecting the temperature thereof; the inverter module is provided with a second temperature sensor for detecting the temperature thereof; and the filter module is provided with a third temperature sensor for detecting the temperature thereof.

[0032] In some embodiments, a sealing ring is arranged on the connecting and fitting surface of the sealing shell and the compressor body; and / or, heat-conducting silicone grease is arranged between the outer periphery of the partition plate and the compressor body.

[0033] In a second aspect, the application provides an air conditioner using the compressor provided in the above embodiments.

[0034] Compared with the prior art, the above technical solution provided in the embodiments of the application has the following advantages: the mounting cavity formed between the sealing shell and the group of side surfaces of the compressor body is used to install the frequency converter module, so that the frequency converter module and the compressor body are integrated; the sealing shell can isolate the external air to a certain extent, so that the moisture in the external air is prevented from entering the mounting cavity and causing condensation; the air guide assembly can guide and drive the air flow in the mounting cavity, so that the circulating air flows through the frequency converter module and the heat exchanger assembly. The heat exchanger assembly can exchange heat between the circulating refrigerant and the circulating air in the mounting cavity, so that the temperature of the circulating air is reduced, the frequency converter module is sufficiently cooled, the temperature difference between the frequency converter module and the compressor shell in the mounting cavity is reduced, condensation in the mounting cavity is avoided, the probability of circuit failure and the risk of fire caused by short circuit are reduced, and the stability of the compressor operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings can also provide further drawings based on these drawings for those ordinarily skilled in the art without any creative effort.

[0037] One or more embodiments are illustrated by way of example in the drawings that are not intended to be limiting of the embodiments. Like references indicate similar elements in the drawings and the specification. The drawings are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the embodiments.

[0038] Figure 1 A schematic view of a compressor is provided for an embodiment of the present application.

[0039] Figure 2 A schematic view of a compressor is provided for an embodiment of the present application. Figure 1 A top view of the compressor without a seal shell is provided for an embodiment of the present application.

[0040] Figure 3 A schematic view of a heat exchanger assembly is provided for an embodiment of the present application. Figure 1 A schematic view of a heat exchanger assembly is provided for an embodiment of the present application.

[0041] Figure 4 A schematic view of a heat exchanger assembly is provided for an embodiment of the present application. Figure 3 A schematic view of a heat exchanger assembly is provided for an embodiment of the present application.

[0042] Figure 5 A schematic view of a heat exchanger assembly and a first fan is provided for an embodiment of the present application.

[0043] Figure 6 A schematic view of a heat exchanger assembly is provided for an embodiment of the present application. Figure 5 A schematic view of a heat exchanger assembly is provided for an embodiment of the present application.

[0044] Figure 7 A schematic view of a throttle element of a compressor is provided for an embodiment of the present application.

[0045] Legend of reference signs:

[0046] 10 - compressor body; 11 - refrigerant inlet pipe; 12 - refrigerant outlet pipe; 20 - seal shell; 30 - heat exchanger assembly; 31 - first fin; 32 - partition; 33 - second fin; 34 - flow guide shell; 40 - throttle element; 41 - throttle valve; 42 - throttle hole plug; 50 - rectification module; 60 - inversion module; 70 - filter module; 80 - first fan; 90 - second fan. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0048] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the description of a particular example will not necessarily be repeated in the description of each example. Furthermore, the description of the background of the application is to be understood as being illustrative of the application, rather than implying any limitation on the applicability of the application. Moreover, the identification of any or more of the various features or aspects of the application in the following can be expressly stated to be present or absent in any specific example of the application and that the identification of any of these various features or aspects within a specific example does not imply that the other features or aspects are necessarily conveyed with that one specific example. Additionally, specific examples of the present application can be directed to aspects of the application that include in specific combinations independent features or aspects of the application. Such aspects can include standalone individual features or aspects of the application or any combination of features or aspects of the application. The application can also be directed to, or limited by, a method or process.

[0049] For the purpose of simplicity, spatial relative terms such as "inner", "outer", "inward", "outward", "lower", "bottom", "top", "upper", "front", "rear", and the like, can be used herein for describing the relative location and / or movement of one element or feature to another element or feature as shown in the drawings. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the drawings. For example, if the device in the drawings is turned over or rotated, such that a figure described as being on the bottom or below another element or feature is now on the top or above another element or feature, such descriptions are to be applied accordingly. Accordingly, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0050] To solve the technical problem that the temperature difference between the frequency converter module and the compressor shell is large in the integrated compressor of the prior art, condensation phenomenon is easily generated in the frequency converter module, circuit failure, short circuit and even fire are caused. The present application provides an air conditioner and a compressor, which can sufficiently cool the frequency converter module, reduce the temperature difference between the frequency converter module and the compressor shell and the sealing cover 20, the temperature difference between the air in the mounting cavity and the compressor shell and the sealing cover 20, prevent condensation in the mounting cavity, especially in the frequency converter module, reduce the probability of circuit failure and the risk of fire caused by short circuit, and improve the stability of the operation of the compressor.

[0051] The structure of the compressor provided in the embodiments of the present application is suitable for an integrated compressor, which realizes the integration of the frequency converter module and the compressor main body 10. Referring to Figure 1 and Figure 2 , the compressor mainly comprises the compressor main body 10, the sealing cover 20, the flow guide assembly and the heat exchanger assembly 30. The structure of the compressor main body 10 is similar to that of a conventional compressor, the sealing cover 20 is sealingly connected to the outer surface of one side of the compressor main body 10, and an installation cavity is formed between the outer surface of the compressor main body 10 and the inner periphery of the sealing cover 20, and the frequency converter module, the flow guide assembly and the heat exchanger assembly 30 are all arranged in the installation cavity and fixed relative to the compressor main body 10.

[0052] The sealing cover 20 plays a role in isolating external air and the frequency converter module, and can effectively reduce the moisture in the external air and the air in the installation cavity, thereby reducing the condensation phenomenon. The flow guide assembly is used to guide and drive the air in the installation cavity to circulate in the installation cavity according to a set path, forming circulating air flowing through the frequency converter module and the heat exchanger assembly 30. The heat exchanger assembly 30 is used to introduce refrigerant, and the refrigerant and the circulating air flowing through the heat exchanger assembly 30 are used to exchange heat, reduce the air temperature of the circulating air, improve the cooling capacity of the circulating air on the frequency converter module, reduce the temperature of the frequency converter module, and thereby reduce the temperature difference between the frequency converter module and the compressor main body 10 and the sealing cover 20, reduce the temperature difference between the air in the installation cavity and the compressor shell and the sealing cover 20, reduce the condensation phenomenon in the installation cavity, especially at the frequency converter module, reduce the probability of circuit failure and the risk of fire caused by short circuit, and improve the stability of the compressor operation.

[0053] Continuing to refer to Figure 1 and Figure 2 , in a specific embodiment provided in the present application, the sealing cover 20 is arranged on the top of the compressor main body 10, so that the installation cavity is formed above the compressor main body 10. In other words, the frequency converter module, the flow guide assembly and the heat exchanger assembly 30 are all arranged on the top of the compressor main body 10. The heat exchanger assembly 30 comprises a refrigerant pool, a first fin 31, a second fin 33 and a partition plate 32. The refrigerant pool can be formed by recessing relative to the top shell surface of the compressor main body 10, or a baffle can be arranged above the top shell of the compressor main body 10 to enclose the refrigerant pool for storing refrigerant.

[0054] The refrigerant pool can introduce and discharge refrigerant to realize the circulation of the refrigerant, and the source of the refrigerant can be a small amount of refrigerant intercepted from the outlet of the condenser of the air conditioning system and delivered to the refrigerant pool through a corresponding pipeline. At the same time, the refrigerant pool is also connected to the evaporator through a pipeline to deliver the refrigerant exchanged with the air in the installation cavity through the heat exchanger assembly 30 to the evaporator, thereby ensuring the circulation of the refrigerant.

[0055] The first fins 31 are arranged in the refrigerant pool and immersed in the refrigerant liquid in the refrigerant pool, and heat of the first fins 31 is taken away by the liquid refrigerant in the refrigerant pool through the convection heat exchange, so that the temperature of the first fins 31 is reduced. The second fins 33 are in thermal conduction connection with the first fins 31, and specifically, the two can adopt an integrated structure or are abutted and fixed by the fixing member.

[0056] As shown in the embodiment, the first fins 31, the second fins 33 and the partition plate 32 are integrally formed, the first fins 31 and the second fins 33 are arranged one by one, and the partition plate 32 is fixedly connected between the first fins 31 and the second fins 33, so as to divide the first fins 31 and the second fins 33 into two parts separated by the partition plate 32. Figures 3 to 6 The partition plate 32 plays a role of heat conduction between the first fins 31 and the second fins 33 on the one hand, and the heat of the second fins 33 is conducted to the first fins 31, which is taken away by the refrigerant after the heat exchange with the refrigerant in the refrigerant pool. On the other hand, the partition plate 32 plays a role of sealing the refrigerant pool, so as to avoid the evaporation of the refrigerant in the refrigerant pool in the installation cavity, which reduces the circulating refrigerant of the air conditioning system and affects the operation of the air conditioning system.

[0057] The shape of the partition plate 32 matches the shape of the refrigerant pool, and the size of the partition plate 32 is usually slightly larger than the size of the refrigerant pool, so that after the first fins 31 are inserted into the refrigerant pool and immersed in the refrigerant, the peripheral edge of the partition plate 32 can cover the refrigerant pool and be in abutment with the top outer periphery of the refrigerant pool to realize sealing.

[0058] The shape of the refrigerant pool is not limited in the embodiment, and 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 relatively regular square or rectangular pool structure, and the shape and size of the partition plate 32 are adaptively adjusted according to the first fins 31 and the refrigerant pool.

[0059] In some embodiments, in order to reduce the temperature difference between the frequency converter module and the compressor shell, heat-conducting silicone grease is arranged between the peripheral edge of the partition plate 32 and the top outer periphery of the refrigerant pool. The heat-conducting silicone grease not only plays a role of connecting and sealing the partition plate 32 and the refrigerant pool, but also can conduct the heat of the second fins 33 conducted to the partition plate 32 to the top shell of the compressor main body 10 through the heat-conducting silicone grease, and then to the sealing cover 20, so as to reduce the temperature difference between the compressor shell and the sealing cover 20 and the air in the installation cavity, and the temperature difference between the compressor shell and the sealing cover 20 and the frequency converter module.

[0060] The partition plate 32 plays a role of heat conduction between the first fins 31 and the second fins 33 on the one hand, and the heat of the second fins 33 is conducted to the first fins 31, which is taken away by the refrigerant after the heat exchange with the refrigerant in the refrigerant pool. On the other hand, the partition plate 32 plays a role of sealing the refrigerant pool, so as to avoid the evaporation of the refrigerant in the refrigerant pool in the installation cavity, which reduces the circulating refrigerant of the air conditioning system and affects the operation of the air conditioning system.

[0061] The first fin 31 and the second fin 33 conduct heat through the partition 32 to conduct heat of the second fin 33 to the first fin 31, so that the temperature of the second fin 33 is reduced to be lower than the temperature of the air in the installation cavity, in particular, the temperature of the circulating air flowing to the second fin 33, and the circulating air exchanges heat with the second fin 33 in a convection manner when flowing through the second fin 33, so that the temperature of the circulating air is significantly reduced, and the circulating air is facilitated to flow to each part of the frequency converter module to cool each electronic element of the frequency converter module, thereby significantly reducing the temperature of the frequency converter 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 of the compressor main body 10 and the sealing cover 20.

[0062] Further, in order to strengthen the convection heat exchange effect between the circulating air and the heat exchanger assembly 30, the heat exchanger assembly 30 provided by the embodiment of the present application further comprises a flow guide cover 34, which is a cover-shaped structure with a cavity and is invertedly buckled on the outer periphery of the second fin 33, and the second fin 33 is arranged in the cavity of the flow guide cover 34. In the illustrated embodiment, the flow guide cover 34 adopts a square cavity shell structure matched with the refrigerant pool, and a group of opposite two side surfaces of the flow guide cover 34 are provided with through holes, and the openings of the opposite two side surfaces of the flow guide cover 34 respectively serve as an air inlet side and an air outlet side.

[0063] The air inlet side is used for the circulating air to flow into the cavity and exchange heat with the second fin 33 in the cavity, and the other side opening opposite to the air inlet side serves as the air outlet side of the flow guide cover 34, which is used for the circulating air after heat exchange with the second fin 33 in the cavity to flow out of the flow guide cover 34. The arrangement of the flow guide cover 34 and the air inlet side and the air outlet side enables the circulating air to flow along the direction from the air inlet side to the air outlet side, improves the air speed of the circulating air flowing through the surface of the second fin 33, and strengthens the convection heat exchange efficiency between the circulating air and the second fin 33.

[0064] The width direction of the second fin 33 is preferably arranged to be consistent with the flow direction of the circulating air in the flow guide cover 34, and the second fins 33 are preferably arranged in parallel with each other, so as to form a flow guide air duct between the second fins 33, thereby reducing the air resistance of the circulating air flowing through the second fin 33. Specifically, the second fin 33 is arranged in the left-right direction of the flow guide cover 34, that is, Figure 5 as shown in the figure, a plurality of groups are arranged in the left-right direction, and a single row or multiple rows can also be arranged along the conveying direction of the circulating air, and the first fin 31 and the second fin 33 are arranged in one-to-one correspondence.

[0065] In some other embodiments, a plurality of rows of second fins 33 are arranged, and the second fins 33 in different rows can also be arranged in a staggered manner, which is not limited in the present application.

[0066] The first fins 31 are arranged in reference to the second fins 33, and a plurality of rows of the first fins 31 are arranged along the flow direction of the liquid refrigerant in the refrigerant pool, and a plurality of first fins 31 are arranged in each row. The width direction of the fins is preferably arranged in parallel with the flow direction of the liquid refrigerant in the refrigerant pool. In this way, the flow resistance of the refrigerant flowing through the first fins 31 can be reduced, the flow speed of the refrigerant in the refrigerant pool can be increased, and the convective heat exchange efficiency between the first fins 31 and the refrigerant can be improved.

[0067] It can be understood that the heat exchanger assembly 30 can not only adopt the form of the refrigerant pool matched with the first fins 31, the second fins 33 and the partition plate 32, but also can adopt a shell-and-tube heat exchanger and the like. The selection of different types of heat exchangers should be comprehensively considered in combination with the refrigerant flow, the heat exchange efficiency and the size of the heat exchanger. The arrangement of the heat exchanger assembly 30 of the present application increases the circulating refrigerant flow, reduces the flow resistance of the circulating air, and increases the convective heat exchange area between the circulating air and the second fins 33.

[0068] In combination with reference to Figure 1 In order to facilitate the delivery and output of the refrigerant into the condensing pool, and to ensure the circulation of the liquid refrigerant, the compressor body 10 is integrally provided with a refrigerant inlet pipe 11 and a refrigerant outlet pipe 12. The interfaces of one end of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 extend to the outer side of the compressor body 10, and the other end extends to the refrigerant pool and communicates with 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 close to the refrigerant outlet of the condenser 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 close to the refrigerant outlet of the evaporator through a pipeline.

[0069] The main body section of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 is arranged between the top of the compressor body 10 and the bottom of the frequency converter module, so as to realize the heat dissipation of the compressor body 10 and the frequency converter module during the circulation of the refrigerant. The arrangement structure of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 can be adjusted flexibly according to the arrangement of the part to be cooled in the specific implementation. Generally, the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 can be hidden in the top shell of the compressor body 10.

[0070] In an embodiment, the driving 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 arranged between the top of the driving motor and the bottom of the frequency converter module. In this way, the frequency converter module can be cooled, and the driving motor of the compressor body 10 can be cooled to a certain extent, so as to improve the stability of the compressor operation.

[0071] It can be understood that the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 can not only be integrated in the top shell part of the compressor body 10, but also can be opened with corresponding perforations at the sealing shell 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 shell 20 and communicate with the refrigerant pool. However, 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 frequency converter module, it is inconvenient to install and dismount the sealing shell 20, and the cooling effect of the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 cannot be fully exerted.

[0072] In order to realize the cooling of the frequency converter module under different operating load states of the compressor, the temperature difference between the air in the installation cavity and the compressor shell and the sealing shell 20, and the temperature difference between the frequency converter module and the compressor shell and the sealing shell 20 are reduced to a suitable range, and the compressor provided by the embodiment of the present application further comprises a throttling element 40 for adjusting the flow of the circulating refrigerant in the refrigerant pool which exchanges heat with the first fin 31.

[0073] By adjusting the flow of the refrigerant by means of the throttling element 40, the flow rate of the refrigerant is changed, the convective heat exchange efficiency of the refrigerant with the first fin 31 is adjusted, the heat conduction speed of the second fin 33 through the partition plate 32 and the first fin 31 is affected, and then the temperature of the circulating air flowing through the heat exchanger assembly 30 is controlled, and finally the temperature of the frequency converter module and the temperature of the air in the installation cavity are adjusted, so that the temperature difference between the frequency converter module and the compressor shell and the sealing shell, and the temperature difference between the air in the installation cavity and the compressor shell and the sealing shell are stabilized in a suitable range.

[0074] When the heat generation of the frequency converter module is large, the circulating refrigerant flow into and out of the refrigerant pool can be adjusted to increase by the throttling assembly, the heat exchange of the refrigerant at the heat exchanger assembly 30 and the circulating air is strengthened, and the cooling capacity of the frequency converter module is improved. When the heat generation of the frequency converter module is low, the circulating flow into and out of the refrigerant pool can be appropriately reduced by the throttling assembly.

[0075] In particular, the throttling element 40 is preferably arranged at the end of the refrigerant outlet pipe 12 away from the refrigerant pool. The beneficial effects of such arrangement are that on the one hand it is convenient for the refrigerant to evaporate after throttling in the evaporator, and on the other hand it can prevent the refrigerant from being throttled before entering the refrigerant pool, and the phase change of the refrigerant in the refrigerant pool absorbs heat, causing the temperature of the frequency converter module to be significantly lower than the surrounding temperature and causing condensation.

[0076] To facilitate the adjustment of the flow rate of the circulating refrigerant through the heat exchanger assembly 30, the compressor provided by the embodiments of the present application further comprises a temperature detection module for detecting the temperature of the frequency converter module. Exemplarily, the frequency converter module comprises the rectifier module 50, the inverter module 60 and the filter module 70, and the temperature detection module correspondingly comprises a first temperature sensor arranged at the rectifier module 50 for detecting the temperature of the rectifier module 50, a second temperature sensor arranged at the inverter module 60 for detecting the temperature of the inverter module 60, and a third temperature sensor arranged 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 with the controller of the compressor or the air conditioner, so that the controller adjusts the flow rate of the refrigerant based on the temperature of each module of the frequency converter module. When the temperature of each module of the frequency converter module exceeds the respective set temperature, the controller controls the throttling element 40 to adjust the flow rate of the circulating refrigerant to increase. When the temperature of each module of the frequency converter module is lower than the respective set temperature, the controller controls the throttling element 40 to adjust the flow rate of the circulating refrigerant to decrease.

[0077] The adjustment of the flow rate of the refrigerant can not only be based on the direct detection of the temperature value of each module of the rectifier module 50, but also can detect the temperature difference between the air inlet side and the air outlet side of the flow guide shell 34, or detect the temperature difference of the circulating refrigerant at the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12. Exemplarily, the air inlet side of the flow guide shell 34 is provided with a fourth temperature sensor for detecting the inlet temperature of the circulating air, and the air outlet side of the flow guide shell 34 is provided with a fifth temperature sensor for detecting the outlet temperature of the circulating air; the opening of the throttling element 40 is adjusted by comparing the temperature difference of the circulating air between the air inlet side and the air outlet side of the flow guide shell 34, so as to adjust the flow rate of the refrigerant.

[0078] When the temperature difference of the circulating air between the air inlet side and the air outlet side of the flow guide shell 34 is large, it indicates that the heat generation of the frequency converter is high, and when the temperature difference is greater than a first set temperature difference, the flow rate of the circulating refrigerant can be adjusted to increase; when the temperature difference is less than a second set temperature difference, the flow rate of the circulating refrigerant can be adjusted to decrease; when the temperature difference is greater than the second set temperature difference and less than the first set temperature difference, the opening of the throttling element 40 is kept, and the flow rate of the circulating refrigerant is maintained unchanged.

[0079] For a more complete understanding of the application, reference is made to the following Figure 2 and Figure 7In some embodiments, two throttling branches are arranged in parallel at one end of the refrigerant outlet pipe 12 away from the refrigerant pool, and are defined as a first throttling branch and a second throttling branch. The throttling element 40 includes a throttling valve 41 and a throttling hole plug 42. The throttling valve 41 is arranged in the first throttling branch, and the throttling hole plug 42 is arranged in the first throttling branch. The throttling valve 41 mainly functions to throttle and reduce pressure and regulate the flow of circulating refrigerant; and the aperture of the throttling hole plug 42 is smaller than the pipe diameter of the first throttling branch. The throttling hole plug 42 is kept in an open state to avoid the failure of the throttling valve 41 and the inability of circulating refrigerant to flow out.

[0080] In some embodiments, the arrangement of the frequency converter module can refer to Figure 2 The frequency converter module mainly includes a rectifier module 50, an inverter module 60, and a filter module 70. The compressor main body 10 is internally provided with a drive motor. The rectifier module 50 is arranged on the top of the compressor main body 10 and above the drive motor. The inverter module 60 is arranged side by side with the rectifier module 50. The inverter module 60 is located on the right side of the top of the compressor main body 10, and the rectifier module 50 is located on the left side of the top of the compressor main body 10. In this way, the refrigerant inlet pipe 11 and the refrigerant outlet pipe 12 can 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 and transporting the refrigerant.

[0081] The adjacent sides of the rectifier module 50 and the inverter module 60 form an air supply duct with a predetermined width. The heat exchanger assembly 30 is arranged at the first end of the air supply duct and the air outlet side of the flow guide housing 34 is in communication with the air supply duct. The filter module 70 is arranged on the side of the compressor main body 10 away from the heat exchanger assembly 30. Due to the fact that the filter module 70 includes a large number of capacitors, the installation area of the filter module 70 is convexly arranged towards the side away from the heat exchanger assembly 30 relative to the edge portion of the compressor main body 10. The circulating air from the air outlet side of the heat exchanger assembly 30 can be transported to the rectifier module 50, the inverter module 60, and the filter module 70 under the cooperation of the air supply duct and the flow guide assembly. The circulating air cools the rectifier module 50, the inverter module 60, and the filter module 70 and then returns to the air inlet side of the heat exchanger assembly 30.

[0082] Continuing to refer to Figure 2In some embodiments, the flow guide assembly comprises a first fan 80 and a second fan 90, which are preferably arranged axially offset, wherein the first fan 80 is arranged at the first end of the air supply air duct, i.e. the second fan 90 is preferably arranged offset from the air supply air duct. The air inlet of the first fan 80 is in communication with the air outlet side of the flow guide shell 34, and the first fan 80 can be embedded in the air outlet side of the flow guide shell 34. The flow guide shell 34 is arranged to ensure that the air inlet of the first fan 80 is spaced apart from the second fins 33 by a distance of 20-30 mm, so as to avoid affecting the circulating air volume. A baffle structure is arranged between the second end of the air supply air duct and the filter module 70, and air inlets are arranged on both sides of the second end of the air supply air duct and are in communication with the rectifier module 50 and the inverter module 60, respectively.

[0083] The circulating air is transported to the second end of the air supply air duct under the action of the first fan 80, and is diverted at the baffle at the second end of the air supply air duct to be transported to the rectifier module 50 and the inverter module 60 to the left and to the right, respectively. The circulating air transported to the rectifier module 50 is circulated to the air inlet side of the flow guide shell 34 in the counterclockwise direction as shown; and the circulating air transported to the inverter module 60 is circulated to the air inlet side of the flow guide shell 34 in the clockwise direction as shown. Figure 2 Figure 2 The main body of the filter module 70 is located on the side of the air supply air duct that is biased toward the inverter module 60, and the second fan 90 is arranged between the inverter module 60 and the filter module 70. The second fan 90 is used to guide a portion of the circulating air transported to the inverter module 60 to the filter module 70, and after circulating in the filter module 70, the air is transported to the air return side of the inverter module 60 and the air return side of the inverter module 60, and is then transported to the air inlet side of the flow guide shell 34.

[0084] Further, in order to facilitate air inlet at the air inlet side of the flow guide shell 34, the top of the compressor main body 10 near the side of the flow guide shell 34, i.e. the side of the mounting cavity away from the filter module 70, forms an air return air duct. The air return air duct can be formed by the baffle structure on both sides of the flow guide shell 34 in cooperation with the sealing shell 20, or can be formed by the electrical elements and the like arranged on the top of the compressor main body 10 in cooperation with the flow guide shell 34. The electrical elements and the like are arranged at a distance from the edge of the top of the compressor main body 10 near the side of the flow guide shell 34. After the sealing shell 20 is buckled on the compressor main body 10, the air return air duct is formed between the electrical elements and the inner wall of the sealing shell 20.

[0085] In order to ensure the sealing of the mounting cavity, a sealing ring can be arranged on the connecting and cooperating surface of the sealing shell 20 and the compressor main body 10, so as to improve the sealing between the connecting and cooperating surface of the sealing shell 20 and the compressor main body 10, and avoid water vapor in the external air entering the mounting cavity through the connecting and cooperating surface of the sealing shell 20 and the compressor main body 10 to form condensation on the inner wall of the mounting cavity, thereby ensuring the safety of the frequency converter module and the stable operation of the compressor.

[0086] ​It should be understood that the positions of the rectifying module 50, the inverting module 60 and the filtering module 70 are not limited to the arrangement shown, and the relative positions among the three can be flexibly adjusted as needed. The flow guide assembly is not limited to the axially staggered arrangement of the first fan 80 and the second fan 90, and any arrangement that can guide the circulating air to flow through the heat exchanger assembly 30 and cool each module of the frequency converter module is applicable to the present application. Figure 2 The circulating air exchanges heat with the circulating refrigerant in the heat exchanger assembly 30 and cools the compressor of the frequency converter module.

[0087] The present application also provides an air conditioner comprising the compressor provided in the above embodiments, an evaporator, a condenser, an electronic expansion valve, etc. The compressor, the evaporator, the condenser and the electronic expansion valve are connected by refrigerant pipelines to form a refrigerant circulation loop of the air conditioner. In addition, a connecting branch is arranged on the side close to the outlet of the condenser and on the side close to the inlet of the evaporator. The connecting branch of the condenser is connected to the refrigerant inlet pipe 11 of the refrigerant pool, and the connecting branch of the evaporator is connected to the refrigerant outlet pipe 12 of the refrigerant pool. The air conditioner and other parts of the compressor main body 10 can refer to the prior art, and will not be described in detail.

[0088] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0089] Although the terms first, second, third, and the like can be used herein to describe various 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 be only used to differentiate one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and the like, as well as other ordinal terms, are used herein in a variable way. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0090] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A compressor, characterized in that, include: Compressor body; A sealing cover is attached to one side surface of the compressor body to form an installation cavity; The frequency converter module is located within the mounting cavity; A flow guiding component, located within the mounting cavity, is used to guide and drive the air within the mounting cavity to circulate along a set path, forming a circulating airflow to cool the inverter module. A heat exchanger assembly is disposed in the mounting cavity for exchanging heat between refrigerant and circulating air flowing through the heat exchanger assembly, thereby reducing the temperature of the circulating air. The heat exchanger assembly includes: A refrigerant pool, located at the top of the compressor body, is used for introducing and discharging circulating refrigerant; The 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; The refrigerant pool is recessed on the top housing surface of the compressor body, and thermally conductive silicone grease is disposed between the partition and the outer periphery of the refrigerant pool.

2. The compressor according to claim 1, characterized in that, The heat exchanger assembly also includes a flow guide shroud, which covers the second fin and has an air inlet side and an air outlet side that are interconnected.

3. The compressor according to claim 2, characterized in that, The compressor body is provided with a refrigerant inlet pipe and a refrigerant outlet pipe, both of which are connected to the refrigerant pool.

4. The compressor according to claim 3, characterized in that, The compressor body is equipped with a drive motor inside, and the refrigerant inlet pipe and / or the refrigerant outlet pipe are wound between the drive motor and the frequency converter module.

5. The compressor according to claim 3, characterized in that, The refrigerant outlet pipe is equipped with a throttling element for regulating the flow rate of the circulating refrigerant.

6. The compressor according to claim 5, characterized in that, The end of the refrigerant outlet pipe away from the refrigerant pool includes a first throttling branch and a second throttling branch connected in parallel. The throttling element includes a throttling valve disposed in the first throttling branch and a throttling orifice plug disposed in the second throttling branch, wherein the throttling orifice plug is kept in a normally open state.

7. The compressor according to any one of claims 2-6, characterized in that, The frequency converter module includes: The rectifier module is located above the drive motor of the compressor body; An inverter module is arranged side by side with the rectifier module and forms an air supply duct between them. The first end of the air supply duct is connected to the air outlet side of the air guide cover. A filter module protrudes from one edge of the compressor body; The heat exchanger assembly is located at the first end of the air supply duct, and the filter module is located on the side of the compressor body away from the heat exchanger assembly.

8. The compressor according to claim 7, characterized in that, The flow guiding component includes: A first fan is located at the first end of the air supply duct, and the air inlet of the first fan is correspondingly arranged with the air outlet side of the guide shroud. The second fan is located between the inverter module and the filter module, and is used to divert the circulating air portion of the inverter module to the filter module.

9. The compressor according to claim 7, characterized in that, The side of the mounting cavity away from the filter module forms a return air duct, which is located on both sides of the heat exchanger assembly and communicates with the air inlet side of the guide shroud.

10. The compressor according to claim 7, characterized in that, The rectifier module is equipped with a first temperature sensor for detecting its temperature; the inverter module is equipped with a second temperature sensor for detecting its temperature; and the filter module is equipped with a third temperature sensor for detecting its temperature.

11. The compressor according to claim 10, characterized in that, A sealing ring is provided on the connecting and mating surfaces of the sealing cover and the compressor body.

12. An air conditioner, characterized in that, The compressor described in any one of claims 1-11 is used.

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