Heat exchange assembly, heat exchange apparatus, energy storage device and charging system

Abstract

The present application relates to the technical field of energy storage-related apparatuses. Disclosed are a heat exchange assembly, a heat exchange apparatus, an energy storage device and a charging system. The heat exchange assembly comprises a shell, a first heat exchanger, an airflow guiding mechanism and a sound insulation cover, wherein the shell is provided with an accommodating cavity and a first wall, which surrounds the accommodating cavity, the first wall being provided with an air outlet in communication with the accommodating cavity; the first heat exchanger is arranged in the accommodating cavity and used for heat exchange with an external airflow; the airflow guiding mechanism is arranged at an air outlet of the shell and used for guiding the airflow to flow through the first heat exchanger; and the sound insulation cover is configured to connect to the first wall, and is arranged around the air outlet and the airflow guiding mechanism. The sound insulation cover is provided with a ventilation region; the sound insulation cover comprises a sound insulation member, which is arranged in the area of the sound insulation cover directly facing the first wall, thereby reducing the operating noise of the heat exchange assembly; noise propagating outwards from the heat exchange assembly is reduced, and the operating environment of the heat exchange assembly is improved.

Description

Heat exchange assembly, heat exchange device, energy storage device and charging system TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage related devices, and in particular to a heat exchange assembly, a heat exchange device, an energy storage device and a charging system. BACKGROUND

[0002] The part provided in this part is merely background information related to the present application, which is not necessarily prior art.

[0003] The energy storage device can include a cabinet and a battery, which has a high energy density. The energy storage device can be equipped with a heat exchange device to regulate the temperature of the battery. When the heat exchange device is working, it has a large noise, which has a great influence on the working environment of the heat exchange device and the energy storage device.

[0004] SUMMARY

[0005] In view of the above problems, the present application provides a heat exchange assembly, a heat exchange device, an energy storage device and a charging system to at least alleviate the problem of large noise of the heat exchange device.

[0006] The first aspect of the present application provides a heat exchange assembly, comprising a shell, a first heat exchanger, an air flow guiding mechanism and a soundproof cover, the shell has a containing cavity and a first wall, the first wall surrounds the containing cavity, and the first wall is provided with an air outlet communicating with the containing cavity; the first heat exchanger is arranged in the containing cavity and is used for heat exchange with external air flow; the air flow guiding mechanism is arranged at the air outlet and is used for guiding the air flow to flow through the first heat exchanger; the soundproof cover is arranged to connect the first wall and surround the air outlet and the air flow guiding mechanism; wherein the soundproof cover is provided with an exhaust area, and the soundproof cover comprises a soundproof piece arranged at a region of the soundproof cover opposite to the first wall, so as to reduce the running noise of the heat exchange assembly.

[0007] In the technical scheme of the present application, when the air flow flows through the soundproof cover, it can flow out from the exhaust area. The noise generated during the operation of the heat exchange assembly can be blocked and reflected by the soundproof piece when it propagates outward from the air outlet of the shell. The energy of the noise is attenuated under the blocking and reflecting action of the soundproof piece, so that the noise propagating outward from the heat exchange assembly can be reduced, and the operating environment of the heat exchange assembly can be improved.

[0008] In addition, the heat exchange assembly according to the present application can also have the following additional technical features:

[0009] In some embodiments of the present application, when the air flow guide mechanism is a diagonal outflow, the sound insulation piece is arranged at a region of the sound insulation cover opposite to the air flow guide mechanism; when the air flow guide mechanism is an axial outflow, the sound insulation piece is arranged at a region of the sound insulation cover surrounding the air flow guide mechanism and opposite to the first wall. The arrangement position of the sound insulation piece can avoid the air exhaust path of the air flow guide mechanism, so that at least part of the air flow discharged through the air outlet can be discharged more smoothly, improving the discharge fluency of the air flow, thereby appropriately reducing the power and operating noise of the air flow guide mechanism and improving the heat exchange efficiency of the heat exchange assembly.

[0010] In some embodiments of the present application, when the sound insulation piece is arranged at a region of the sound insulation cover opposite to the air flow guide mechanism, the air exhaust region is arranged surrounding the sound insulation piece; when the sound insulation piece is arranged at a region of the sound insulation cover surrounding the air flow guide mechanism and opposite to the first wall, the sound insulation piece is arranged surrounding the air exhaust region. The position of the air exhaust region is arranged so that the air exhaust path of the air flow guide mechanism passes through the air exhaust region, improving the discharge fluency of the air flow, thereby appropriately reducing the power and operating noise of the air flow guide mechanism and improving the heat exchange efficiency of the heat exchange assembly.

[0011] In some embodiments of the present application, the sound insulation piece is arranged at a region of the sound insulation cover opposite to the air flow guide mechanism, the sound insulation cover further comprises a plurality of spaced connection rods, the sound insulation piece is connected to the shell through the connection rods, the air exhaust region is formed between adjacent connection rods, or the sound insulation cover further comprises a first mesh cover, the sound insulation piece is connected to the shell through the first mesh cover, and the first mesh cover is arranged as the air exhaust region. When the sound insulation piece is connected to the shell through the connection rods, the structure is simple, the volume of the connection rods is small, the interference with the air flow is small, the wind resistance is reduced, and the heat exchange efficiency of the heat exchange assembly is improved. When the sound insulation piece is fixed through the first mesh cover, the first mesh cover can allow the air flow to pass, so that the heat exchange assembly can effectively exhaust air, and at the same time, the first mesh cover can also play a protection role.

[0012] In some embodiments of the present application, the first wall is provided with a plurality of air outlets, each of the air outlets is provided with the air flow guide mechanism, the positions opposite to the air flow guide mechanisms are provided with the sound insulation pieces, and the sound insulation pieces in the corresponding regions of each air flow guide mechanism are spaced apart or the sound insulation pieces in the corresponding positions of each air flow guide mechanism are an integral structure. In the scheme that the sound insulation pieces in the corresponding positions of each air outlet are spaced apart, the sound insulation pieces can be adaptively designed or assembled according to each air outlet, and the processing and assembly of the sound insulation pieces are more flexible. In the case that the sound insulation pieces in the corresponding positions of each air outlet are an integral structure, the sound insulation pieces and the shell are easy to assemble, and the assembly efficiency is high.

[0013] In some embodiments of the present application, the sound insulation member is arranged in a region of the sound insulation cover surrounding the airflow guiding mechanism and opposite to the first wall, a circumferential edge of the sound insulation member is connected to the first wall, and a middle part of the sound insulation member is hollow to form the air exhaust area.

[0014] In some embodiments of the present application, the first wall is provided with a plurality of air outlets, each of the air outlets is provided with the airflow guiding mechanism, and the sound insulation member surrounds the plurality of airflow guiding mechanisms. The plurality of airflow guiding mechanisms are surrounded by one sound insulation member, which is simple in structure and has a good noise reduction effect.

[0015] In some embodiments of the present application, the sound insulation member comprises a porous sound absorption structure.

[0016] In some embodiments of the present application, the sound insulation member comprises a metal sealing plate.

[0017] In some embodiments of the present application, the air exhaust area is arranged in a form of an air outlet grid structure. The air outlet grid structure has a good rainproof effect and can reduce the possibility of rainwater flowing back into the heat exchange assembly.

[0018] In some embodiments of the present application, the sound insulation cover further comprises a surrounding plate connected to the first wall, the surrounding plate is connected to the first wall, the surrounding plate surrounds the air outlet and the airflow guiding mechanism, and the sound insulation member is connected to the surrounding plate. In this embodiment of the heat exchange assembly, when noise is transmitted outward through the air outlet, the surrounding plate can stop, reflect and reduce part of the noise transmitted outward, so that the noise of the heat exchange assembly is reduced.

[0019] In some embodiments of the present application, the surrounding plate is arranged in a form of a porous sound absorption structure.

[0020] In some embodiments of the present application, along the arrangement direction of the first wall to the sound insulation member, there is a spacing gap between the airflow guiding mechanism and the sound insulation member. The spacing gap can reserve a distance between the air outlet of the airflow guiding mechanism and the sound insulation plate, form a ventilation transition section, reduce the wind resistance, and improve the guiding effect of the airflow guiding mechanism on the airflow.

[0021] In some embodiments of the present application, the airflow guiding mechanism comprises a wind ring and an impeller assembly, the wind ring is installed on the first wall; the impeller assembly comprises an impeller and a blade, the impeller is cylindrically arranged, the impeller surrounds the outside of the blade and is fixedly connected with the blade, the two axial ends of the wind ring are respectively a wind ring air inlet end and a wind ring air outlet end, the two axial ends of the impeller are respectively an impeller air inlet end and an impeller air outlet end, along the axial direction of the wind ring, the wind ring air outlet end is inserted into the impeller air inlet end, so that the wind ring is in communication with the impeller, and in the radial direction of the wind ring, the wind ring and the impeller are in clearance fit, the impeller assembly is configured to be able to rotate around its own axis relative to the wind ring; the impeller is provided with a blocking part, and the blocking part is arranged to protrude from the outer peripheral wall of the impeller. In the airflow guiding mechanism of the embodiment, when the airflow guiding mechanism is in operation, the impeller assembly rotates, and the airflow is pressed from the wind ring to the air outlet (i.e. the impeller air outlet end) of the impeller assembly. The wind ring air outlet end is inserted into the impeller air inlet end, so that the stepped surface formed by the sleeve connection of the wind ring and the impeller can avoid the flow path of the airflow, improve the smoothness of the airflow, and reduce the possibility of increasing noise caused by the airflow being disturbed by the stepped surface and generating turbulence when the airflow flows from the wind ring to the impeller. At the same time, the blocking part can stop the airflow flowing in the opposite direction along the outside of the impeller, reduce the possibility of the airflow flowing out of the air outlet of the impeller re-entering the impeller through the gap at the connection between the wind ring and the impeller, causing the airflow in the impeller to separate and become turbulent, and further reduce the noise of the airflow, thereby reducing the overall operating noise of the airflow guiding mechanism and the heat exchange equipment using the airflow guiding mechanism.

[0022] In some embodiments of the present application, the shell is also provided with an air inlet communicated with the accommodating cavity, and the air inlet is provided in a mesh structure. The mesh of the mesh structure can make the airflow formed by the air flow into the accommodating cavity, and at the same time, the mesh structure can reduce the possibility of large sundries entering the shell and the possibility of the operator reaching into the accommodating cavity and causing danger. The mesh of the mesh structure can be a hexagonal mesh, a diamond-shaped mesh, a circular mesh, etc.

[0023] The second aspect of the present application proposes a heat exchange equipment comprising a compressor, a throttling assembly, a second heat exchanger and a refrigerant pipeline, the heat exchange equipment further comprises the heat exchange assembly proposed in the present application or any embodiment of the present application, the compressor, the first heat exchanger, the throttling assembly and the second heat exchanger are connected in sequence through the refrigerant pipeline.

[0024] The heat exchange equipment of the embodiment has the same beneficial effects as the heat exchange assembly proposed in the present application or any embodiment of the present application.

[0025] The third aspect of the present application provides an energy storage device, the energy storage device comprising a battery and a thermal management system, the thermal management system being configured to adjust a temperature of the battery; wherein the thermal management system comprises a first heat exchange loop and a second heat exchange loop, the first heat exchange loop comprising a heat exchange assembly or a heat exchange device, the heat exchange device being the heat exchange device according to the present application or any of the embodiments of the present application, the heat exchange assembly being the heat exchange assembly according to the present application or any of the embodiments of the present application, the first heat exchange loop being configured to exchange heat with the second heat exchange loop, the second heat exchange loop being configured to exchange heat with the battery.

[0026] The energy storage device according to the present application or any of the embodiments of the present application has the same beneficial effects as the heat exchange assembly according to the present application or any of the embodiments of the present application.

[0027] In addition, the energy storage device according to the present application can have the following additional technical features:

[0028] In some embodiments of the present application, the energy storage device further comprises a cabinet configured to accommodate the battery, and the heat exchange assembly is arranged inside or outside the cabinet.

[0029] The fourth aspect of the present application provides a charging system, the charging system comprising a charging pile, the charging system further comprising the energy storage device according to the present application or any of the embodiments of the present application, the charging pile being electrically connected to the battery of the energy storage device, and the energy storage device being configured to provide electric energy for the charging pile.

[0030] The charging system according to the present application has the same beneficial effects as the heat exchange device according to the present application or any of the embodiments of the present application.

[0031] The above description is only a summary of the technical solutions of the present application. In order to enable one of ordinary skill in the art to better understand the technical means of the present application, the technical solutions can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0032] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Moreover, the same reference numerals in the accompanying drawings indicate the same or similar components. In the drawings:

[0033] FIG. 1 is a schematic diagram of an energy storage device according to some embodiments of the present application;

[0034] FIG. 2 is a partial structural schematic diagram of an energy storage device according to some embodiments of the present application;

[0035] Fig. 3 is a schematic diagram of a heat management system according to some embodiments of the present application;

[0036] Fig. 4 is a partial structural schematic diagram of a heat exchange assembly according to some embodiments of the present application;

[0037] Fig. 5 is a partial structural schematic diagram of a heat exchange assembly according to some embodiments of the present application;

[0038] Fig. 6 is a partial cross-sectional schematic diagram of a heat exchange assembly according to some embodiments of the present application;

[0039] Fig. 7 is a structural schematic diagram of a heat exchange assembly according to some embodiments of the present application;

[0040] Fig. 8 is an enlarged schematic diagram of a mesh structure according to some embodiments of the present application;

[0041] Fig. 9 is a structural schematic diagram of a first mesh cover and a soundproofing member according to some embodiments of the present application;

[0042] Fig. 10 is a structural schematic diagram of a first mesh cover and a soundproofing member according to some embodiments of the present application;

[0043] Fig. 11 is a structural schematic diagram of an air flow guiding mechanism according to some embodiments of the present application;

[0044] Fig. 12 is a schematic diagram of a soundproofing member according to some embodiments of the present application;

[0045] Fig. 13 is a cross-sectional schematic diagram of a heat exchange assembly according to some embodiments of the present application;

[0046] Fig. 14 is a structural schematic diagram of an air flow guiding mechanism according to some embodiments of the present application;

[0047] Fig. 15 is a cross-sectional schematic diagram of an air flow guiding mechanism according to some embodiments of the present application;

[0048] Fig. 16 is an assembled cross-sectional view of a wind guide ring and an impeller assembly according to some embodiments of the present application;

[0049] Fig. 17 is a structural schematic diagram of an impeller assembly according to some embodiments of the present application;

[0050] Fig. 18 is a structural schematic diagram of an impeller assembly according to some embodiments of the present application;

[0051] Fig. 19 is a cross-sectional schematic diagram of an impeller assembly according to some embodiments of the present application;

[0052] Fig. 20 is a partial cross-sectional schematic diagram of an impeller assembly according to some embodiments of the present application;

[0053] Fig. 21 is a schematic view of a partial cross-section of a blade wheel assembly according to some embodiments of the present application;

[0054] Fig. 22 is a schematic view of a partial structure of an air flow guiding mechanism according to some embodiments of the present application.

[0055] The reference signs in the detailed description are as follows: 10, energy storage device; 11, cabinet body; 12, battery; 13, bracket; 14, thermal management system; 15, accommodation space; 100, first heat exchange circuit; 101, heat exchange device; 110, housing; 111, first wall; 112, air inlet; 113, air outlet; 114, mesh structure; 1141, mesh; 120, first heat exchanger; 130, air flow guiding mechanism; 131, blade wheel assembly; 1311, wheel shaft; 1312, blade wheel; 1313, blade; 1314, mounting cavity; 1315, transmission part; 1316, blade wheel air inlet end; 1317, blade wheel air outlet end; 132, air guide ring; 1321, cover part; 1322, assembly part; 1323, first air guide section; 1324, second air guide section; 1325, air guide ring air inlet end; 1326, air guide ring air outlet end; 1327, first sub-section; 1328, second sub-section; 1329, convex part; 133, fixing assembly; 1330, connecting frame; 1331, first connecting part; 1332, second connecting part; 1333, connecting plate; 1334, positioning ring plate; 134, driving member; 1341, connecting block; 1342, power supply line assembly; 1343, driving output end; 1344, nut assembly; 1345, limiting part; 135, protective mesh cover; 1351, assembly hole; 136, blocking part; 1361, first blocking section; 1362, second blocking section; 140, sound insulation cover; 1401, sound insulation member; 1402, coaming; 141, connecting rod; 142, first mesh cover; 143, first sound absorption structure; 144, second sound absorption structure; 145, third sound absorption structure; 146, grid bar; 150, compressor; 160, throttling assembly; 180, second heat exchanger; 190, refrigerant pipeline; 200, second heat exchange circuit; 210, heat exchange member; 220, circulation pipeline; 230, driving assembly; 300, heating assembly; 400, indicator light; E, air exhaust path; F, air exhaust area. DETAILED DESCRIPTION

[0056] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, but cannot limit the protection scope of the present application.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. Unless otherwise required by context, singular terms shall include pluralities and vice versa. Unless otherwise required by context, the use herein of the singular is also to be construed as a use of the plural and vice versa.

[0058] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly and specifically limited.

[0059] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The occurrence of the phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a separate or alternative embodiment, to the exclusion of other embodiments. It is explicitly and implicitly understood that the embodiments described herein are capable of combination.

[0060] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0061] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0062] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0063] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mount", "connect", "connect", "fix" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0064] The battery can store electrical energy and power the electrical device. With the development of new energy, the energy storage device with the battery is gradually widely used due to its large electrical energy storage capacity. The energy storage device can include a cabinet body, and the battery is arranged in the cabinet body. The number of batteries is usually multiple.

[0065] Temperature has a great influence on the performance of the battery. Too low temperature will reduce the activity of the battery and may cause the battery to be unable to charge and discharge. Too high temperature will have the risk of causing thermal runaway. The energy storage device usually has a thermal management system to regulate the temperature of the battery in the energy storage device.

[0066] In some energy storage devices, the thermal management system regulates the temperature of the battery through a refrigerant heat exchange device, for example, a water chiller can be used to cool the battery in cooperation with a corresponding device. The refrigerant heat exchange device generally includes a compressor, a condenser, a throttling component and an evaporator connected through a refrigerant pipeline. Taking the battery cooling as an example, the evaporator is used for heat exchange with the battery to reduce the temperature of the battery. For example, the evaporator can directly contact the battery for heat exchange. For another example, the evaporator can exchange heat with the environment where the battery is located, or the evaporator can exchange heat with the cooling water system connected to the battery to cool the battery through the cooling water system. The condenser is used for heat exchange with air. In order to improve the refrigeration effect, the condenser is usually provided with an air flow guiding mechanism such as a fan. The air flow guiding mechanism can accelerate the flow of air flow to improve the heat exchange efficiency between the condenser and the air flow (air flow). The air flow guiding mechanism guides the flow of air flow, not only needs to absorb the heat generated at the end of the battery, and dissipate the heat to the outside, but also needs to dissipate the heat generated by the refrigerant heat exchange device itself (such as the work of the compressor). Thus, the air volume demand of the air flow guiding mechanism is large, the operating power of the air flow guiding mechanism is increased, and the noise of the operation of the air flow guiding mechanism and the noise formed by the flow of air flow are large.

[0067] How to reduce the noise of the refrigerant heat exchange device and make the energy storage device have a good operating environment has always been the focus of the research and development of the energy storage device. It is found that the noise generated by the air flow guiding mechanism during operation and the noise formed by the flow of air flow can be propagated outward through the air outlet of the shell of the refrigerant heat exchange device, which makes it difficult to reduce the noise.

[0068] In order to solve the problem that the noise of the refrigerant heat exchange equipment is difficult to reduce because the noise is transmitted outward through the air outlet, the application provides a heat exchange assembly, which comprises a shell, a first heat exchanger, an airflow guiding mechanism and a soundproof cover. The shell has a first wall, the first wall is provided with an air outlet, the airflow guiding mechanism is arranged at the air outlet, the first heat exchanger is arranged in the shell, and the soundproof cover is provided with a soundproof member in the region opposite to the first wall.

[0069] The noise in the heat exchange assembly (including the noise generated by the airflow guiding mechanism and the noise generated by the airflow passing through the first heat exchanger) is transmitted outward through the air outlet. Since the soundproof member is arranged at the position opposite to the first wall, the noise can be transmitted to the soundproof member and blocked and bounced by the soundproof member, so that the energy is consumed, thereby reducing the noise transmitted to the outside and improving the control ability of the noise.

[0070] The heat exchange assembly of the application can be applied to a water chiller, and the first heat exchanger can be a condenser of the water chiller. The water chiller using the heat exchange assembly of the application can reduce the noise transmitted outward at the air outlet, thereby improving the overall noise problem of the water chiller.

[0071] The heat exchange assembly or the heat exchange equipment according to the application or any embodiment of the application can be applied to an energy storage device to regulate the temperature of the battery in the energy storage device. For example, the heat exchange equipment can be combined with a cooling medium circulating device to form a battery thermal management system and exchange heat with the battery through the cooling medium circulating device. For another example, the heat exchange equipment can be used independently and directly exchange heat with the battery in the energy storage device or directly exchange heat with the air in the cabinet of the energy storage device to reduce the temperature in the cabinet. The heat exchange equipment according to the application or any embodiment of the application can also be used in an electric device to regulate the temperature of the battery of the electric device. The electric device can be but is not limited to an electric vehicle, an electric train, an electric bicycle, a golf cart, a drone or a ship. The heat exchange equipment according to the application or any embodiment of the application can also be applied to a non-battery product or a non-battery related environment that needs to be temperature-regulated to regulate the temperature of the non-battery product or the non-battery related environment.

[0072] In order to facilitate description, the energy storage device is taken as an example to illustrate the heat exchange equipment according to the embodiments of the application.

[0073] FIG. 1 is a schematic diagram of an energy storage device according to some embodiments of the application, and FIG. 2 is a schematic diagram of part of the energy storage device according to some embodiments of the application. As shown in FIGS. 1 and 2, the energy storage device 10 according to the embodiments of the application comprises a cabinet 11, a battery 12 and a thermal management system 14. The cabinet 11 is provided with a bracket 13, and the battery 12 is arranged on the bracket 13.

[0074] The shape of the cabinet 11 can be set as required, and one side of the cabinet 11 in the horizontal direction can be provided with an opening to facilitate the assembly and maintenance of the battery 12. The opening can be provided with a closable door body, or can not be provided with a door body. As shown in FIG. 2, the bracket 13 is connected with the cabinet 11, and can be an integral structure with the cabinet 11, or can be fixedly connected by bolts or the like. The battery 12 in the cabinet 11 can be multiple, and multiple rows of batteries 12 can be arranged in the cabinet 11 in the horizontal direction, or one row of batteries 12 can be arranged. Each row of batteries 12 can be stacked on the bracket 13 from top to bottom in the cabinet 11.

[0075] The battery 12 can include a box body and a battery cell, and the battery cell is accommodated in the box body. The battery 12 can be supported on the bracket 13. In each battery 12, the battery cell can be multiple, and the multiple battery cells can be connected in series, connected in parallel, or connected in series-parallel. The multiple battery cells can be directly connected in series, connected in parallel, or connected in series-parallel together, and then the whole of the multiple battery cells is accommodated in the box body. Of course, the battery 12 can also be that the multiple battery cells are first connected in series, connected in parallel, or connected in series-parallel to form a battery module, and then multiple battery modules are connected in series, connected in parallel, or connected in series-parallel to form a whole, and then accommodated in the box body. The battery 12 can also include other structures, for example, the battery 12 can also include a current combiner for realizing electrical connection between the multiple battery cells. Each battery cell can be a secondary battery or a primary battery; can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes.

[0076] The thermal management system 14 can be used for temperature regulation of the battery 12. Specifically, the thermal management system 14 can only perform temperature regulation of the battery 12, the thermal management system 14 can only perform temperature regulation of the battery 12, the thermal management system 14 can have both the function of temperature regulation of the battery 12 and the function of temperature regulation of the battery 12, and can be adaptively controlled according to the current temperature of the battery 12.

[0077] FIG. 3 is a schematic diagram of the principle of the thermal management system according to some embodiments of the present application. As shown in FIG. 3, the thermal management system 14 can include a first heat exchange circuit 100 and a second heat exchange circuit 200. The second heat exchange circuit 200 is used for heat exchange with the battery 12, and the first heat exchange circuit 100 is used for heat exchange with the second heat exchange circuit 200.

[0078] The first heat exchange circuit 100 includes a heat exchange device 101, which can include a compressor 150, a first heat exchanger 120, a throttling assembly 160, and a second heat exchanger 180 connected in series through a refrigerant pipeline 190. The second heat exchange circuit 200 can include a cooling medium circulating device.

[0079] The cabinet 11 is provided with a containing space 15 on one side of the bracket 13, and the heat exchange device 101 can be installed in the containing space 15. Alternatively, the heat exchange device 101 can also be installed outside the cabinet 11 of the energy storage device 10. As shown in FIG. 4 and FIG. 5, FIG. 4 is a partial structural schematic diagram of the heat exchange assembly from one perspective according to some embodiments of the present application, and FIG. 5 is a partial structural schematic diagram of the heat exchange assembly from another perspective according to some embodiments of the present application. The heat exchange device 101 can further include a shell 110. The compressor 150, the first heat exchanger 120, the throttling assembly 160, the second heat exchanger 180, and the airflow guiding mechanism 130 can all be arranged in the shell 110. Alternatively, some components of the heat exchange device 101 can be arranged in the shell 110, and some components can be arranged outside the shell 110. Alternatively, when the heat exchange device 101 is installed outside the cabinet 11, the first heat exchanger 120 and the airflow guiding mechanism 130 and other components that exchange heat with the external environment can be arranged in the shell 110. Alternatively, the compressor 150 can be arranged in the shell 110 outside the cabinet 11. Alternatively, all components of the heat exchange device 101 can be arranged in the shell 110 outside the cabinet 11.

[0080] The shell 110 is provided with an air inlet and an air outlet. The air inlet is used for air to flow into the shell 110, and the air outlet is used for air to flow out of the shell 110. The shell 110 is arranged in the containing space 15, and the cabinet 11 is provided with a communication port that communicates with the containing space 15, so that the air outlet and the air inlet of the shell 110 communicate with the outside of the cabinet 11 through the communication port. A mesh structure can be arranged at the communication port.

[0081] The first heat exchanger 120 can be used for heat exchange with air, i.e., heat exchange with the external environment. The second heat exchanger 180 is used for heat exchange with the cooling medium in the second heat exchange circuit 200. One of the first heat exchanger 120 and the second heat exchanger 180 acts as a condenser, and the other acts as an evaporator. Specifically, when the battery 12 needs to be heated to increase the temperature of the battery 12, the first heat exchanger 120 is used as an evaporator, and the second heat exchanger 180 is used as a condenser. When the battery 12 needs to be cooled to reduce the temperature of the battery 12, the first heat exchanger 120 is used as a condenser, and the second heat exchanger 180 is used as an evaporator. The heat exchange device 101 can further include a corresponding valve control assembly, so that the first heat exchanger 120 and the second heat exchanger 180 can be switched under different working conditions.

[0082] The compressor 150 is a driven fluid machine that lifts low-pressure gas to high-pressure gas, which sucks in low-temperature and low-pressure refrigerant from its own refrigerant inlet, and after being compressed by the motor operation to drive the piston, discharges high-temperature and high-pressure refrigerant to its own refrigerant outlet, and provides power for the refrigerant circulation. The refrigerant, also known as refrigerant, snow species, etc., is a medium substance used to complete energy conversion in various heat engines.

[0083] The first heat exchanger 120 is provided with a refrigerant passage for the refrigerant to flow through. When the refrigerant flows through the first heat exchanger 120, it can exchange heat with the air outside the first heat exchanger 120. As shown in FIG. 3, in order to improve the heat exchange efficiency of the first heat exchanger 120 and the air, the heat exchange device 101 can further be provided with an air flow guiding mechanism 130, which can be used to guide the air flow to flow through the first heat exchanger 120. The air flow guiding mechanism 130 can be a fan, specifically an axial flow fan, a mixed flow fan, etc. Among them, the mixed flow fan is also called a mixed flow fan, which is a fan between the axial flow fan and the centrifugal fan. The impeller of the mixed flow fan makes the air do both centrifugal and axial motion, and the motion of the air is a mixture of axial and centrifugal motion.

[0084] The second heat exchanger 180 is provided with a refrigerant passage for the refrigerant to flow through. When the refrigerant flows through the second heat exchanger 180, it can exchange heat with the cooling medium in the second heat exchanger 180. The position of the second heat exchanger 180 can correspond to the first medium containing part, and the first medium containing part is in communication with the second heat exchange circuit 200, and the refrigerant in the second heat exchanger 180 exchanges heat with the cooling medium in the first medium containing part. Optionally, in some implementations, the second heat exchanger 180 is provided with a medium passage, which can be used as the first medium containing part. The inlet and outlet of the medium passage are in communication with the outlet and inlet of the second heat exchange circuit 200 respectively to form a circulation loop of the cooling medium. The medium passage and the refrigerant passage are independent of each other, and the cooling medium in the medium passage exchanges heat with the refrigerant to realize the heat exchange between the second heat exchanger 180 and the cooling medium. Optionally, in another implementation, the first medium containing part can be a liquid storage tank, a liquid storage tank, a communication pipe, etc. The second heat exchanger 180 can be arranged in the first medium containing part, and the refrigerant in the second heat exchanger 180 exchanges heat with the cooling medium in the first medium containing part. The first heat exchanger 120 and the second heat exchanger 180 can be plate heat exchangers, fin heat exchangers, etc.

[0085] The second heat exchange circuit 200 comprises a circulation pipeline 220 and a heat exchange member 210. The heat exchange member 210 is a member capable of conducting heat, and can be a water cooling plate. A cooling medium exchanges heat with the battery 12 through the heat exchange member 210. The heat exchange member 210 can be arranged outside the battery 12 and can be arranged in close contact with the battery 12 to facilitate heat exchange between the battery 12 and the heat exchange member 210. The heat exchange member 210 can also be arranged inside the battery 12, for example, between adjacent battery cells in the battery 12. The heat exchange member 210 can also be part of the box constituting the battery 12, that is, part of the box as the heat exchange member 210.

[0086] The heat exchange member 210 is provided with a medium passage. The inlet and outlet of the medium passage of the heat exchange member 210 are respectively connected with the circulation pipeline 220. The circulation pipeline 220 can be provided with a driving assembly 230. The driving assembly 230 is used to drive the cooling medium to flow from the first medium containing member corresponding to the second heat exchanger 180 to the heat exchange member 210, and then back to the first medium containing member corresponding to the second heat exchanger 180 via the heat exchange member 210. The cooling medium can be a liquid such as water, or a gaseous or other flowable substance.

[0087] The throttling assembly 160 is used to throttle the refrigerant to change the pressure, which can function to throttle and reduce pressure and adjust flow. The throttling assembly 160 can be an expansion valve.

[0088] Referring to FIG. 3, in some embodiments, the first heat exchanger 120 of the heat exchange device 101 is used as a condenser, and the second heat exchanger 180 is used as an evaporator, that is, the refrigerant pipeline 190 is sequentially connected in series with the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 to form a refrigerant circuit (the present embodiment is mainly described by taking the refrigerant circuit as a cooling circuit as an example), which can be used for refrigeration, for example, as part of a water chiller. The general working principle of the heat exchange device 101 is as follows: the second heat exchanger 180 of the refrigerant circuit exchanges heat with the cooling medium of the second heat exchange circuit 200. The cooling medium of the second heat exchange circuit 200 passes through the heat exchange member 210 outside the battery to absorb the heat generated by the battery 12. The temperature of the cooling medium rises and enters the second heat exchanger 180. The refrigerant in the second heat exchanger 180 evaporates to absorb the temperature of the cooling medium. The evaporated and absorbed refrigerant is driven back to the compressor 150 in the refrigerant circuit to be compressed to form a high-temperature and high-pressure state. The high-temperature and high-pressure state refrigerant is condensed in the condenser (the first heat exchanger 120) to form a medium-temperature and high-pressure state. The condenser (the first heat exchanger 120) dissipates heat generated by the fan (air flow guiding mechanism 130) to the environment. The medium-temperature and high-pressure state refrigerant passes through the expansion valve (throttling assembly 160) to form a low-temperature and low-pressure two-phase state refrigerant, which returns to the second heat exchanger 180 to form a cycle.

[0089] Continuing to refer to FIG. 3, the heat exchange device 101 can further be provided with a heating assembly 300, which can heat the cooling medium, and the circulation pipeline 220 is in communication with the heating assembly 300, and the heating assembly 300 can be started when it is required to heat the battery 12. The heating assembly 300 can include an electric heating element and a second medium containing element, which can be a pipe, a tank, a box, etc., which can be connected in the circulation pipeline 220, and the electric heating element is arranged in the second medium containing element, and is used to heat the cooling medium of the second medium containing element. The electric heating element can be a PTC heating body in particular, and the PTC heating body is also called a PTC heater, and the full name is Positive Temperature Coefficient Heater, which is an electric heater using a positive temperature coefficient (PTC) material, which can be composed of a PTC ceramic heating element and an aluminum pipe. This type of PTC heating body has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant temperature, power saving electric heater.

[0090] It should be noted that the scheme of arranging the heating assembly 300 in the heat exchange device 101 can be combined with the scheme of the refrigerant circuit of the heat exchange device 101 for refrigeration. The second medium containing part of the heating assembly 300 is arranged in parallel with the first medium containing part corresponding to the second heat exchanger 180 in the circulation pipeline 220. In some implementations, when the heat exchange device 101 is in use, the second medium containing part of the heating assembly 300 and the second heat exchanger 180 and the second heat exchange circuit 200 can be selectively connected to the circulation pipeline 220. Specifically, this can be achieved by arranging a valve control assembly (such as a switch proportional valve, an electromagnetic valve, etc.) on the circulation pipeline 220, that is, when it is necessary to heat the battery 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 is started, the circulation pipeline 220 is connected to the first medium containing part corresponding to the second heat exchanger 180, the heating assembly 300 is closed, and the circulation pipeline 220 is disconnected from the first medium containing part of the heating assembly 300, and the second heat exchange circuit 200 delivers the cooling medium heat-exchanged by the second heat exchanger 180 to the heat exchange part 210 corresponding to the battery 12 to cool the battery 12, and the cooling medium is delivered back to the second heat exchanger 180 after passing through the heat exchange part 210; when it is necessary to cool the battery 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 is stopped, the circulation pipeline 220 is disconnected from the first medium containing part corresponding to the second heat exchanger 180, the heating assembly 300 is opened, and the circulation pipeline 220 is connected to the second medium containing part of the heating assembly 300, and the second heat exchange circuit 200 delivers the cooling medium heated by the heating assembly 300 to the heat exchange part 210 corresponding to the battery 12 to heat the battery 12, and the cooling medium is delivered back to the heating assembly 300 after passing through the heat exchange part 210. In other implementations, when the heat exchange device 101 is in use, the second medium containing part of the heating assembly 300 and the second heat exchanger 180 and the second heat exchange circuit 200 can also be connected to the circulation pipeline 220, and when it is necessary to heat the battery 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 is started, the heating assembly 300 is closed, and when it is necessary to cool the battery 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 is stopped, and the heating assembly 300 is opened.

[0091] It should be further explained that the heat management system 14 of the embodiment can also include temperature sensors and the like. For example, a temperature sensor can be arranged on the battery 12 to detect the temperature of the battery 12; a temperature sensor can be arranged in the cabinet 11 in which the battery 12 is located to detect the temperature in the cabinet 11 in which the battery 12 is located; and a temperature sensor can be arranged outside the cabinet 11 to detect the temperature of the external environment. The second heat exchange circuit can be provided with a temperature sensor and a pressure sensor to detect the temperature and flow pressure of the refrigerant, and the second heat exchange return circuit can also be provided with a temperature sensor and a pressure sensor to detect the temperature and flow pressure of the cooling medium. The energy storage device 10 can perform adaptive control on the heat exchange equipment 101 based on the detected temperature of the temperature sensors and the like to adjust the temperature of the battery 12. Specifically, the operation control of the heat exchange equipment 101 can be performed by the controller of the energy storage device 10, or a separate controller can be arranged in the heat management system 14 to perform operation control on the heat exchange equipment 101.

[0092] As shown in FIGS. 4 to 7, FIG. 6 is a partial cross-sectional schematic diagram of a heat exchange assembly according to some embodiments of the present application, and FIG. 7 is a structural schematic diagram of a heat exchange assembly according to some embodiments of the present application. The embodiments of the present application propose a heat exchange assembly, which includes a housing 110, a first heat exchanger 120, an airflow guiding mechanism 130, and a soundproof cover 140. The housing 110 has a receiving cavity and a first wall 111 surrounding the receiving cavity, and the first wall 111 is provided with an air outlet 113 communicating with the receiving cavity. The first heat exchanger 120 is arranged in the receiving cavity and is used to exchange heat with external airflow. The airflow guiding mechanism 130 is arranged at the air outlet 113 and is used to guide the airflow to flow through the first heat exchanger 120. The soundproof cover 140 is arranged to connect the first wall 111 and surrounds the air outlet 113 and the airflow guiding mechanism 130. The soundproof cover 140 is provided with an exhaust area F, and the soundproof cover 140 includes a soundproof piece 1401 arranged at a region of the soundproof cover 140 opposite to the first wall 111 to reduce the operating noise of the heat exchange assembly.

[0093] The shell 110 is an internally hollow member, which can be shaped as needed, and can be a cuboid structure. The air outlet 113 is connected to the outside and the inside of the shell 110, so that air (air flow) can flow from the inside of the shell 110 to the outside through the air outlet 113. The air outlet 113 can be arranged on any wall of the shell 110, such as the top wall, side wall or bottom wall of the shell 110. The shell 110 can also be provided with an air inlet 112, which is connected to the outside and the inside of the shell 110, so that air can flow from the outside to the inside of the shell 110. The air inlet 112 and the air outlet 113 can be arranged on different walls of the shell 110 to reduce the mutual influence between the air inlet and the air outlet and improve the heat exchange effect of the heat exchange assembly. The air inlet 112 and the air outlet 113 can also be arranged on the same side wall of the shell 110, and the air inlet 112 and the air outlet 113 can be arranged separately to reduce the mutual influence between the air inlet and the air outlet. The shell 110 can be provided with one or more air outlets 113 and one or more air inlets 112.

[0094] The first wall 111 is the wall of the shell 110 provided with the air outlet 113, and the first wall 111 can be part of the outer wall of the shell 110. The air outlet 113 can be arranged on any wall of the shell 110, such as the top wall, side wall or bottom wall of the shell 110. The air inlet 112 and the air outlet 113 can be arranged on different walls of the shell 110 to reduce the mutual influence between the air inlet and the air outlet and improve the heat exchange effect of the heat exchange assembly. The air outlet 113 and the air inlet 112 can also be arranged on the same side wall of the shell 110, and the air inlet 112 and the air outlet 113 can be arranged separately to reduce the mutual influence between the air inlet and the air outlet. The shell 110 can be provided with one or more air outlets 113 and one or more air inlets 112.

[0095] In one implementation, as shown in FIG. 4, FIG. 6 and FIG. 7, the shell 110 is substantially in a cuboid structure, one of the side walls of the shell 110 is provided with the air outlet 113, the side wall adjacent to the side wall provided with the air outlet 113 is provided with a plurality of air inlets 112, the lower end of the side wall provided with the air inlets 112 is also provided with the air inlets 112, and the top wall of the shell 110 is also provided with the air inlets 112. The air inlets 112 can be provided with a mesh structure 114, as shown in FIG. 8, which is an enlarged view of the mesh structure 114 according to some embodiments of the present application. The mesh holes 1141 of the mesh structure 114 can allow air to flow into the shell 110, while the mesh structure 114 can also reduce the possibility of large debris entering the shell 110 and the possibility of the operator reaching into the shell 110 and causing danger. The mesh holes 1141 of the mesh structure 114 can be hexagonal, diamond-shaped, circular, etc.

[0096] It should be noted that the black fuzzy areas in FIG. 4, FIG. 5 and FIG. 7 are mesh structures 114, which are black due to the display scale. The specific structure of the mesh structure 114 can be understood with reference to the enlarged view of the mesh structure 114 in FIG. 8. The mesh structure 114 of each black fuzzy area can be the same as the mesh structure 114 shown in FIG. 8.

[0097] The axial direction of the air outlet 113, that is, the axial direction of the air outlet 113, can be understood with reference to the extension direction of the center line of the air outlet 113. Alternatively, the axial direction of the air outlet 113 is substantially perpendicular to the first wall 111 where the air outlet 113 is located.

[0098] The first heat exchanger 120 can be a refrigerant heat exchanger, which can be provided with a refrigerant passage. The airflow can be an airflow formed by air, and the external airflow refers to an airflow formed by air outside the first heat exchanger 120. The external airflow (i.e. air) can flow through the outer surface of the first heat exchanger 120 and can exchange heat with the refrigerant in the first heat exchanger 120 through the first heat exchanger 120. The first heat exchanger 120 can be a parallel flow heat exchanger, a flat plate heat exchanger, a finned heat exchanger, a micro-channel heat exchanger, etc. The first heat exchanger 120 can be arranged inside the shell 110 and can be fixedly connected with the shell 110 by a bracket or the like. The first heat exchanger 120 is located between the air inlets 112 and the air outlet 113, which can be understood as that the first heat exchanger 120 is located on the airflow flow path between the air inlets 112 and the air outlet 113, that is, the airflow formed by the airflow guiding mechanism 130 can flow through the first heat exchanger 120.

[0099] The air flow guiding mechanism 130 can be a blower, an axial flow fan, a mixed flow fan, etc. The air flow guiding mechanism 130 can be arranged at the air inlet 112. The air flow guiding mechanism 130 can be fixedly installed on the shell 110, or arranged in the shell 110, or at least partially exposed outside the shell 110. Specifically, the air flow guiding mechanism 130 can be arranged at a position corresponding to the air inlet 112, for example, arranged in the air inlet 112, arranged on the inner side or outer side of the air inlet 112, etc. When the air flow guiding mechanism 130 is arranged in the air inlet 112 or the air outlet 113, the air flow guiding mechanism 130 can be partially exposed outside the shell 110.

[0100] The sound insulation cover 140 can be arranged on the outer side of the first wall 111, that is, the sound insulation cover 140 is arranged on the side of the first wall 111 away from the accommodation cavity. The sound insulation cover 140 can be arranged on the outer side of the air flow guiding mechanism 130 and the air outlet 113 in a circumferential direction, and can be arranged in a ring shape. The sound insulation cover 140 can be fixedly connected to the first wall 111 by welding, bolt connection, etc.

[0101] The sound insulation piece 1401 is arranged on the surface of the sound insulation cover 140 opposite to the first wall 111. The plate surface of the sound insulation piece 1401 (i.e., the surface with the largest area of the sound insulation piece 1401) can be arranged substantially perpendicular to the axial direction of the air outlet 113, that is, substantially parallel to the first wall 111 on which the air outlet 113 is arranged. The sound insulation piece 1401 has the function of blocking the outward propagation of sound and can reflect sound. The main part of the sound insulation piece 1401 includes a substantially closed or completely closed plate piece, a sheet piece, etc. That is, the main part of the sound insulation piece 1401 is substantially free of through holes. Optionally, the sound insulation piece 1401 can be a non-mesh plate. Since the sound insulation piece 1401 is substantially or completely free of through holes, it can have the function of sound insulation. Optionally, the sound insulation piece 1401 can be a solid structure or a hollow structure with an inner cavity, and can be a metal sealing plate with a sealed surface. The sound insulation piece 1401 can be fixedly connected to the shell 110.

[0102] Optionally, as shown in FIGS. 4 and 7, the sound insulation piece 1401 can be provided with an indicator light 400. The indicator light 400 is used to indicate the running state of the heat exchange assembly, so that personnel can understand the running state of the heat exchange assembly from the outside of the heat exchange assembly.

[0103] The heat exchange assembly has an air exhaust area F outside the sound insulation piece 1401, and the air exhaust area F is in communication with the air outlet 113 and the outside. The airflow flowing out of the air outlet 113 can be discharged to the outside through the air exhaust area F. Optionally, in some implementations, at least one side of the sound insulation piece 1401 can be the air exhaust area F along an axis perpendicular to the air outlet 113 (which can be understood with reference to the surface of the first wall 111 or the surface of the sound insulation piece 1401), for example, as shown in FIGS. 4 and 7, and as shown in FIGS. 9 and 10, FIG. 9 is a structural schematic diagram of the first mesh cover and the sound insulation piece according to some embodiments of the present application, and FIG. 10 is a structural schematic diagram of the first mesh cover and the sound insulation piece according to some other embodiments of the present application. The air exhaust area F (which can be understood with reference to the position of the first mesh cover 142) can be arranged around the sound insulation piece 1401, that is, the sound insulation piece 1401 is arranged around the periphery of the sound insulation piece 1401. Optionally, in some other implementations, the sound insulation piece 1401 can also be arranged around the air exhaust area F.

[0104] In the heat exchange assembly, the noise generated during the operation of the heat exchange assembly (including the noise generated during the operation of the airflow guide mechanism 130 and the noise generated when the airflow flows through the first heat exchanger 120, etc.) can be blocked and reflected by the sound insulation piece 1401 when the noise is transmitted outward from the air outlet 113. The energy of the noise is attenuated under the blocking and reflecting action of the sound insulation piece 1401, so that the noise transmitted outward by the heat exchange assembly can be reduced, and the operating environment of the heat exchange assembly can be improved.

[0105] It should be noted that the first heat exchanger 120 in FIG. 5 only schematically shows a part of the top end and the bottom end. Actually, the first heat exchanger 120 is a whole structure from the top end to the bottom end.

[0106] According to some embodiments of the present application, optionally, as shown in FIGS. 4, 6, 7, 9 and 10, the sound insulation piece 1401 is arranged to avoid at least part of the air exhaust path E. The air exhaust path E is the path of the airflow flowing outward through the air outlet 113.

[0107] The air exhaust path E can be understood as the flow path of the airflow after the airflow passes through the air outlet 113 without any other obstacles, that is, the airflow path formed by the airflow under the guiding action of the air outlet 113 or the components at the air outlet 113. In the present embodiment, the airflow guide mechanism 130 is arranged at the air outlet 113, and the path driven by the airflow guide mechanism 130 for the airflow to flow outward can be regarded as the air exhaust path E.

[0108] The setting position of the sound insulation piece 1401 avoids part of the exhaust air path E. It can be understood that at least part of the exhaust air path E does not pass through the sound insulation piece 1401, that is, at least part of the exhaust air path E passes through the exhaust air area F, and at least part of the airflow can flow directly to the outside through the exhaust air area F after flowing out of the air outlet 113. Specifically, the sound insulation piece 1401 can avoid all of the exhaust air path E, or can avoid part of the exhaust air path E.

[0109] It should be noted that if part of the exhaust air path E passes through the sound insulation piece 1401, the airflow flowing to the sound insulation piece 1401 can be reversed after being blocked by the sound insulation piece 1401 to flow to the exhaust air area F to flow to the outside. The other arrows in FIG. 6 represent the flow direction of the airflow.

[0110] The heat exchange assembly of the embodiment avoids at least part of the exhaust air path E by the setting position of the sound insulation piece 1401, so that at least part of the airflow discharged through the air outlet 113 can be discharged more smoothly, improving the discharge smoothness of the airflow, thereby appropriately reducing the power and operating noise of the airflow guiding mechanism 130, and improving the heat exchange efficiency of the heat exchange assembly.

[0111] According to some embodiments of the present application, optionally, when the airflow guiding mechanism 130 is a diagonal flow air outlet, the sound insulation piece is arranged at a region of the sound insulation cover 140 opposite to the airflow guiding mechanism 130; when the airflow guiding mechanism 130 is an axial flow air outlet, the sound insulation piece is arranged at a region of the sound insulation cover 140 surrounding the airflow guiding mechanism and opposite to the first wall 111.

[0112] Optionally, in some embodiments, the airflow guiding mechanism 130 is arranged at the air outlet 113, the sound insulation piece 1401 is an exhaust air path E for the airflow guiding mechanism 130 to drive the airflow to flow to the outside, the inlet of the airflow guiding mechanism 130 faces the inside of the shell 110, and the outlet of the airflow guiding mechanism 130 faces the outside of the shell 110.

[0113] The type of the airflow guiding mechanism 130 is different, and the exhaust air path E formed by the airflow guiding mechanism 130 is different. For example, the airflow guiding mechanism 130 can be a diagonal flow fan, the diagonal flow fan is arranged at the air outlet 113, and the exhaust air path E formed by the diagonal flow fan is arranged at an angle with the axial direction of the air outlet 113 (that is, the axial direction of the diagonal flow fan), that is, the airflow flows obliquely to the air outlet under the action of the diagonal flow fan. For another example, the airflow guiding mechanism 130 can be an axial flow fan, the axial flow fan is arranged at the air outlet 113, and the exhaust air path E formed by the axial flow fan extends along the axial direction of the air outlet 113 (that is, the axial direction of the axial flow fan), that is, the airflow flows to the outside along the axial direction of the air outlet 113 under the action of the axial flow fan.

[0114] In some embodiments, the air exhaust path E is inclined outward relative to the axial direction of the air outlet 113, that is, when the airflow guiding mechanism 130 is a diagonal flow air outlet, the at least partial sound insulation piece 1401 is arranged opposite to the air outlet 113 along the axial direction of the air outlet 113, and the outer side of the circumferential edge of the sound insulation piece 1401 forms an air exhaust area F, and the air exhaust path E at least partially passes through the air exhaust area F. For ease of description, the projection of the sound insulation piece 1401 to the air outlet 113 along the axial direction of the air outlet 113 is defined as a first projection. The air exhaust path E being inclined outward relative to the axial direction of the air outlet 113 can be understood as follows: after the airflow flows out of the air outlet 113 or the airflow guiding mechanism 130 arranged at the air outlet 113, the airflow is inclined to flow in a direction away from the axis of the air outlet 113 along the radial direction of the air outlet 113, that is, the air exhaust path E is inclined relative to both the radial direction of the air outlet 113 and the axial direction of the air outlet 113, and the airflow flows outward and diffuses. Alternatively, in the present embodiment, the airflow guiding mechanism 130 can be a diagonal flow fan arranged at the air outlet 113 to form the inclined air exhaust path E.

[0115] It should be noted that the at least partial sound insulation piece 1401 is arranged opposite to the air outlet 113, which can be understood as follows: the first projection is at least partially located within the air outlet 113, for example, the first projection can be entirely located within the air outlet 113, or the first projection can be partially located within the air outlet 113 and partially located outside the air outlet 113. The air exhaust area F is arranged at the outer side of the circumferential edge of the sound insulation piece 1401, which can be understood as follows: the area surrounding the circumferential edge of the sound insulation piece 1401 can be used as the air exhaust area F. The air exhaust path E at least partially passes through the air exhaust area F, which can be understood as follows: at least part of the air exhaust path E extends from the air outlet 113 to the air exhaust area F, so that at least part of the airflow can directly pass through the air exhaust area F and flow to the outside.

[0116] The heat exchange assembly of the present embodiment is suitable for diagonal flow air outlet, and by reasonably arranging the position of the sound insulation piece 1401, the air exhaust path E at least partially passes through the air exhaust area F, so that at least part of the airflow discharged through the air outlet 113 can be smoothly discharged, the airflow discharge smoothness is improved, so that the power of the airflow guiding mechanism 130 can be appropriately reduced, and the heat exchange efficiency of the heat exchange assembly is improved.

[0117] According to some embodiments of the present application, the airflow guiding mechanism 130 includes a diagonal flow fan, and the projection of the sound insulation piece 1401 to the impeller 1312 along the axial direction of the air outlet 113 is at least partially located within the radial dimension of the impeller 1312.

[0118] Referring to FIG. 11, the diagonal flow fan includes an impeller assembly 131, which includes an impeller 1312 and a wheel shaft 1311 disposed in the impeller 1312 and a series of curved blades 1313 connected to the wheel shaft 1311, shaped like a propeller, which pushes the airflow diagonally through the curved blades 1313, and the shaft of the impeller 1312 is through, and the wheel shaft 1311 can be connected to a motor, which drives the impeller assembly 131 to rotate, thereby guiding the airflow to flow, and the angle of the exhaust path E formed by the impeller 1312 relative to the axial direction of the diagonal flow fan (which can be understood relative to the axial direction of the impeller 1312) can be 15 degrees, 20 degrees, 25 degrees, 30 degrees, etc. The diagonal flow fan can be disposed outside the shell 110 and correspond to the air outlet 113. Specifically, referring to FIGS. 4 and 11, the inlet end of the impeller 1312 is provided with an air guide ring 132, and the air guide ring 132 has an assembly portion 1322, which can be a flange, and the assembly portion 1322 is fixedly connected to the first wall 111, and can be fixedly provided by bolts or screws. The outlet end of the impeller 1312 can also be provided with a protective mesh cover 135, which is provided with mesh holes, and the protective mesh cover 135 can prevent sundries or hands of personnel from entering the impeller 1312, improve the reliability of the diagonal flow fan, and reduce the possibility of danger. The protective mesh cover 135 can be fixed to the assembly portion 1322 by one or more fixing assemblies 133.

[0119] The radial dimension range of the impeller 1312 refers to the range covered by the blades 1313 of the impeller 1312 when rotating, which can be understood as a circular region formed with the axis of the wheel shaft of the impeller 1312 as the center and the distance from the center to the blades 1313 of the impeller 1312 as the radius.

[0120] As shown in FIGS. 4, 5 and 11, in some implementations, the projection of the sound insulation piece 1401 to the impeller 1312 can be partially located in the radial dimension range of the impeller 1312, that is, at least part of the edge of the sound insulation piece 1401 is located inside the edge of the impeller 1312, so that the sound insulation piece 1401 can better avoid the exhaust path E formed by the impeller 1312. It should be noted that in the present implementation, the part of the sound insulation piece 1401 that exceeds the radial dimension range of the impeller 1312 is mainly located between the two airflow guide mechanisms 130 (i.e., the diagonal flow fans), and the area between the two airflow guide mechanisms 130 is substantially free of airflow because the air outlets of the two airflow guide mechanisms 130 cancel each other out, so the sound insulation piece 1401 is provided at this position, which basically does not affect the flow efficiency of the airflow.

[0121] As shown in FIG. 10, the projection of the sound insulation piece 1401 to the impeller 1312 is located within the radial dimension of the impeller 1312, that is, the size of the sound insulation piece 1401 corresponding to each air outlet 113 is smaller than the radial dimension of the corresponding impeller 1312, and in the direction perpendicular to the axial direction of the impeller 1312 (for example, the axial direction of the impeller 1312 can be understood with reference to the axial direction of the air outlet 113 in FIGS. 4-7), the sound insulation piece 1401 is located within the radial dimension of the impeller 1312, so that the sound insulation piece 1401 can avoid the exhaust path E formed by the mixed flow fan.

[0122] In the heat exchange assembly of the embodiment, the sound insulation piece 1401 is at least partially located within the radial dimension of the impeller 1312, which can make the exhaust path E formed by the mixed flow fan substantially entirely in the exhaust area F, so that at least part of the airflow discharged through the air outlet 113 can be discharged more smoothly, improving the discharge smoothness of the airflow, thereby appropriately reducing the power of the airflow guiding mechanism 130 and improving the heat exchange efficiency of the heat exchange assembly.

[0123] According to some embodiments of the present application, optionally, in some implementations, the airflow guiding mechanism 130 is an axial flow air outlet, and the exhaust path E is consistent with the axial direction of the air outlet 113. Referring to FIG. 12, which is a schematic view of a sound insulation piece according to some embodiments of the present application, along the axial direction of the air outlet 113, the sound insulation piece 1401 is located at a position avoiding the air outlet 113.

[0124] The sound insulation piece is arranged in the area of the sound insulation cover 140 surrounding the airflow guiding mechanism and opposite to the first wall, that is, the sound insulation piece 1401 is located at a position avoiding the air outlet 113, that is, the first projection of the sound insulation piece 1401 to the first wall 111 does not coincide with the air outlet 113, and the sound insulation piece 1401 is located at the periphery of the air outlet 113.

[0125] Optionally, the airflow guiding mechanism 130 can be an axial flow fan, which is arranged in the air outlet 113 to form an exhaust path E consistent with the axial extension direction of the air outlet 113. The axial flow fan can include an impeller 1312 and a motor, the impeller 1312 is connected to the motor, and the blades 1313 of the impeller 1312 of the axial flow fan can be a series of straight blades 1313, the shape of the blades 1313 is approximately like a cylinder, and the axial flow fan pushes the airflow along the axial direction through the rotation of the blades 1313.

[0126] It can be understood that the heat exchange assembly of the embodiment, the exhaust air path E is consistent with the axial direction of the air outlet 113, the air flow formed through the air outlet 113 or the air flow guide mechanism 130 arranged at the air outlet 113 is discharged outward along the axial direction of the air outlet 113, and the sound insulation piece 1401 is arranged to avoid the air outlet 113, so that the exhaust air path E formed by the inclined flow fan is basically located in the exhaust air area F, and thus the air flow discharged through the air outlet 113 can be discharged more smoothly, the air flow discharge smoothness is improved, so that the power and the operation noise of the air flow guide mechanism 130 can be appropriately reduced, and the heat exchange efficiency of the heat exchange assembly is improved.

[0127] According to some embodiments of the present application, when the sound insulation piece is arranged at a region of the sound insulation cover 140 opposite to the air flow guide mechanism, the exhaust air area is arranged around the sound insulation piece; when the sound insulation piece is arranged at a region of the sound insulation cover 140 around the air flow guide mechanism and opposite to the first wall, the sound insulation piece is arranged around the exhaust air area.

[0128] As shown in FIGS. 4, 7, 9 and 10, the exhaust air path E is inclined outward relative to the axial direction of the air outlet 113, that is, when the air flow guide mechanism 130 is a inclined flow air outlet, the exhaust air area F is arranged outside the circumferential edge of the sound insulation piece 1401, and it can be understood that the region around the circumferential edge of the sound insulation piece 1401 can be used as the exhaust air area F. For the inclined flow air outlet, by reasonably arranging the position of the sound insulation piece 1401, the exhaust air path E at least partially passes through the exhaust air area F, so that at least part of the air flow discharged through the air outlet 113 can be discharged more smoothly, the air flow discharge smoothness is improved, so that the power of the air flow guide mechanism 130 can be appropriately reduced, and the heat exchange efficiency of the heat exchange assembly is improved.

[0129] Optionally, the air flow guide mechanism 130 is an axial flow air outlet, and the sound insulation piece 1401 is arranged around the air outlet 113 along the circumferential direction of the air outlet 113. Specifically, in some implementations, as shown in FIG. 12, the air outlet 113 is provided with an exhaust air area F at a position opposite to the air outlet 113, and the sound insulation piece 1401 can be arranged around the exhaust air area F. The arrangement of the sound insulation piece 1401 in the embodiment can be applicable to the scheme that the exhaust air path E is consistent with the axial direction of the air outlet 113, and the heat exchange assembly of the embodiment can be designed for axial air outlet, and by arranging the sound insulation piece 1401 around the air outlet 113, the noise stopping range of the sound insulation piece 1401 can be improved, and the noise reduction effect of the heat exchange assembly is improved.

[0130] According to some embodiments of the present application, the soundproof member is arranged at a region of the soundproof cover 140 opposite to the airflow guiding mechanism 130. The soundproof cover 140 further comprises a plurality of spaced apart connecting rods 141. The soundproof member 1401 is connected to the shell 110 through the connecting rods 141. Adjacent connecting rods 141 form an exhaust region F. Alternatively, the soundproof cover 140 further comprises a first mesh cover 142. The soundproof member 1401 is connected to the shell 110 through the first mesh cover 142. The first mesh cover 142 is arranged as the exhaust region F.

[0131] In some embodiments, as shown in FIG. 4, the soundproof cover 140 further comprises connecting rods 141. The soundproof member 1401 is connected to the shell 110 through the connecting rods 141. The number of connecting rods 141 can be multiple. The multiple connecting rods 141 can be arranged along the circumference of the soundproof member 1401. The connecting rods 141 and the shell 110 can be detachably connected or non-detachably connected. The connecting rods 141 can be arranged in the exhaust region F. Airflow can flow outward through the region between the multiple connecting rods 141. The connecting rods 141 can be made of metal rods to reduce the volume of the connecting rods 141 and reduce the influence of the connecting rods 141 on the airflow discharge. As shown in FIGS. 4 and 5, taking the example of the exhaust path E being inclined outward relative to the axial direction of the air outlet 113, the exhaust region F is arranged around the soundproof member 1401. The multiple connecting rods 141 are arranged along the circumference of the soundproof member 1401. One end of each connecting rod 141 is connected to the soundproof member 1401. The other end of each connecting rod 141 is fixedly connected to the shell 110 through a bolt. In this embodiment of the heat exchange assembly, the soundproof member 1401 is connected to the shell 110 through the connecting rods 141. The structure is simple. The volume of the connecting rods 141 is small. The connecting rods 141 have little influence on the airflow flow. The wind resistance is reduced. The heat exchange efficiency of the heat exchange assembly is improved.

[0132] According to some embodiments of the present application, as shown in FIG. 9 and FIG. 10, the soundproof cover 140 further comprises a first mesh cover 142, which is connected with the soundproof member 1401 and is arranged in the air exhaust path E. The first mesh cover 142 is a cover body provided with mesh holes, and is arranged in the air exhaust area F. The first mesh cover 142 and the sealing plate member can be an integral structure or a split assembly structure. As shown in FIG. 7, FIG. 9 and FIG. 10, the first mesh cover 142 can be a mesh plate provided with a plurality of mesh holes arranged in rows and columns. The mesh holes can be round holes, hexagonal holes or rhombic holes, etc. As shown in the drawings, the first mesh cover 142 can also be a grating structure. Optionally, when the air exhaust area F surrounds the soundproof member 1401, as shown in FIG. 7, the first mesh cover 142 can be connected with the housing 110 and the soundproof member 1401, so that the soundproof member 1401 is connected with the housing 110 through the first mesh cover 142. Optionally, the first mesh cover 142 can be detachably fixed on the housing 110 by bolts or the like. In the heat exchange assembly of the present embodiment, the first mesh cover 142 can allow airflow to pass through, so that the heat exchange assembly can effectively exhaust air. At the same time, the first mesh cover 142 can also play a protective role.

[0133] According to some embodiments of the present application, as shown in FIG. 9 and FIG. 10, the soundproof cover 140 further comprises a first mesh cover 142, which is connected with the soundproof member 1401 and is arranged in the air exhaust path E. The first mesh cover 142 is a cover body provided with mesh holes, and is arranged in the air exhaust area F. The first mesh cover 142 and the sealing plate member can be an integral structure or a split assembly structure. As shown in FIG. 7, FIG. 9 and FIG. 10, the first mesh cover 142 can be a mesh plate provided with a plurality of mesh holes arranged in rows and columns. The mesh holes can be round holes, hexagonal holes or rhombic holes, etc. As shown in the drawings, the first mesh cover 142 can also be a grating structure. Optionally, when the air exhaust area F surrounds the soundproof member 1401, as shown in FIG. 7, the first mesh cover 142 can be connected with the housing 110 and the soundproof member 1401, so that the soundproof member 1401 is connected with the housing 110 through the first mesh cover 142. Optionally, the first mesh cover 142 can be detachably fixed on the housing 110 by bolts or the like. In the heat exchange assembly of the present embodiment, the first mesh cover 142 can allow airflow to pass through, so that the heat exchange assembly can effectively exhaust air. At the same time, the first mesh cover 142 can also play a protective role.

[0134] wherein the plurality means two and more than two. In the case that the soundproof member 1401 in the corresponding position of each air outlet 113 is an integral structure, the soundproof member 1401 can be an integral molding structure or an integral structure connected by welding or the like.

[0135] Optionally, the present embodiment can be applicable to the case that the air exhaust path E is inclined outward relative to the axial direction of the air outlet 113, i.e. the case that the airflow guiding mechanism 130 is a diagonal flow air outlet. In some implementations, as shown in FIG. 4, FIG. 7 and FIG. 9, two air outlets 113 are arranged on the first wall 111 at intervals, and each air outlet 113 is provided with a diagonal flow fan. Each air outlet 113 is provided with a soundproof member 1401, and each soundproof member 1401 is an integral structure. The outer side of the circumferential edge of the soundproof member 1401 forms an air exhaust area F. Optionally, in another implementation, two air outlets 113 are arranged on the first wall 111 at intervals, and each air outlet 113 is provided with a diagonal flow fan. Each air outlet 113 is provided with a soundproof member 1401, and each soundproof member 1401 is arranged at intervals, as shown in FIG. 10.

[0136] Optionally, in the axial outflow scheme, the sound insulation piece is arranged in the region of the sound insulation cover 140 surrounding the airflow guide mechanism 130 and opposite to the first wall 111, the circumferential edge of the sound insulation piece is connected with the first wall 111, and the middle part of the sound insulation piece is hollow to form the air exhaust region F.

[0137] Optionally, the first wall is provided with a plurality of air outlets, the plurality of air outlets are respectively provided with airflow guide mechanisms, and the sound insulation piece surrounds the plurality of airflow guide mechanisms.

[0138] In one specific implementation, two air outlets 113 are arranged on the first wall 111 at intervals, each air outlet 113 is respectively provided with an axial fan, and the periphery of the outer side of each air outlet 113 is provided with a sound insulation piece 1401. Each sound insulation piece 1401 is an integral structure, as shown in FIG. 12, the air exhaust regions F of the air outlets 113 can be continuously arranged, and the sound insulation piece 1401 surrounds the air exhaust regions F in the circumferential direction. It can be understood that in the scheme in which the sound insulation pieces 1401 arranged at intervals between the sound insulation pieces 1401 corresponding to the positions of the air outlets 113, the sound insulation pieces 1401 can be adaptively designed or assembled according to each air outlet 113, and the sound insulation pieces 1401 are more flexible in processing and assembly. In the case where the sound insulation pieces 1401 corresponding to the positions of the air outlets 113 are integral structures, the sound insulation pieces 1401 are convenient to assemble with the shell 110, and the assembly efficiency is relatively high.

[0139] It should be noted that when the sound insulation piece is arranged in the region of the sound insulation cover 140 surrounding the airflow guide mechanism and opposite to the first wall, the heat exchange assembly can be provided with a mesh cover structure in the air exhaust region F.

[0140] According to some embodiments of the present application, optionally, the sound insulation piece 1401 comprises a porous sound absorption structure.

[0141] The sound insulation piece 1401 can be partially provided with a porous sound absorption structure, or can be entirely provided with a porous sound absorption structure. The porous sound absorption structure is a component with a plurality of holes (generally micropores) on the surface and can reduce noise based on the holes. The reduction of noise by the porous sound absorption structure is mainly based on three mechanisms of reflection, scattering and absorption of noise. Among them, the reflection mechanism refers to when noise encounters the surface of the porous sound absorption structure, part of the energy will be reflected back, and the surface with high reflectivity can effectively reduce the penetration of sound. The scattering mechanism refers to the irregular shape of the surface of the porous sound absorption structure can make the propagation direction of the noise more diverse, thereby reducing the reflection of the noise on the material surface. The small holes and protrusions on the surface of the porous sound absorption part can play a scattering role, increase the contact area between the noise and the material, and thereby reduce the reflection and propagation of the noise. The absorption mechanism refers to when the noise enters the porous sound absorption material through the holes, its energy will gradually dissipate due to internal molecular friction and heat conduction, thereby effectively absorbing the energy of the noise. The porous sound absorption structure can be sound absorption cotton, sound absorption board, etc., which has low cost and good noise reduction effect.

[0142] According to some embodiments of the present application, as shown in FIG. 13, the heat exchange assembly further comprises a first sound-absorbing structure 143, which is arranged on the sound insulation piece 1401.

[0143] The first sound-absorbing structure 143 refers to a structure that can absorb noise and reduce noise. It can be a porous sound-absorbing structure, such as sound-absorbing cotton, sound-absorbing board, etc. The first sound-absorbing structure 143 can also be a resonant sound-absorbing structure, etc. The first sound-absorbing structure 143 can be installed on the side of the sound insulation piece 1401 facing the air outlet 113, or on the side of the sound insulation piece 1401 away from the air outlet 113, or the sound insulation piece 1401 can be filled with the first sound-absorbing structure 143.

[0144] When the noise is transmitted outward through the air outlet 113, the first sound-absorbing structure 143 can absorb part of the noise transmitted outward, so as to reduce the noise of the heat exchange assembly.

[0145] According to some embodiments of the present application, the first sound-absorbing structure 143 comprises a porous sound-absorbing structure; and / or, the first sound-absorbing structure 143 is arranged on the side of the sound insulation piece 1401 facing the air outlet 113.

[0146] The porous sound-absorbing structure is a component with a surface having a plurality of holes (generally micropores) and can reduce noise based on these holes. The reduction of noise by the porous sound-absorbing structure is mainly based on three mechanisms of reflection, scattering and absorption of noise. Among them, the reflection mechanism refers to when noise encounters the surface of the porous sound-absorbing structure, part of the energy will be reflected back, and the surface with high reflectivity can effectively reduce the penetration of sound. The scattering mechanism refers to the irregular shape of the surface of the porous sound-absorbing structure can make the propagation direction of the noise more diverse, thereby reducing the reflection of the noise on the surface of the material. The small holes and protrusions on the surface of the porous sound-absorbing structure can play a scattering role, increase the contact area of the noise and the material, and thus reduce the reflection and propagation of the noise. The absorption mechanism refers to when the noise enters the porous sound-absorbing material through the holes, its energy will gradually dissipate due to internal molecular friction and heat conduction, thereby effectively absorbing the energy of the noise. The porous sound-absorbing structure can be sound-absorbing cotton, sound-absorbing board, etc., which has low cost and good noise reduction effect.

[0147] Optionally, a first sound-absorbing structure 143 can be attached to the side of the sound insulation piece 1401 facing the air outlet 113. The first sound-absorbing structure 143 can be a porous sound-absorbing structure. The first sound-absorbing structure 143 is arranged on the side of the sound insulation piece 1401 facing the air outlet 113, so that part of the noise propagating outward can be absorbed, and the noise reflected by the sound insulation piece 1401 can also be absorbed, so that the noise of the heat exchange assembly is reduced.

[0148] Optionally, as shown in FIG. 13, the heat exchange assembly further includes a second sound-absorbing structure 144. The wall of the shell 110 where the air outlet 113 is arranged is a first wall 111. The second sound-absorbing structure 144 is arranged on the wall surface of the first wall 111 facing the sound insulation piece 1401. The second sound-absorbing structure 144 refers to a structure that can absorb noise and reduce noise. The second sound-absorbing structure 144 can be a porous sound-absorbing structure, such as sound-absorbing cotton or sound-absorbing board. The second sound-absorbing structure 144 can also be a resonant sound-absorbing structure. The wall surface of the first wall 111 facing the sound insulation piece 1401 is an outer wall surface of the first wall 111, and the second sound-absorbing structure 144 can be arranged on the outer wall surface.

[0149] In the heat exchange assembly of the present embodiment, when the noise propagates outward through the air outlet 113, the second sound-absorbing structure 144 can absorb part of the noise propagating outward. The noise emitted by the sound insulation piece 1401 can propagate to the second sound-absorbing structure 144 and be absorbed again, so that the noise of the heat exchange assembly is reduced.

[0150] According to some embodiments of the present application, the sound insulation piece 1401 can include a metal sealing plate.

[0151] The sound insulation of the sound insulation piece 1401 follows the mass law. The heavier the mass of the material of the sound insulation piece 1401 (or the greater the surface density or unit volume density), the better the sound insulation effect. The sound insulation volume can theoretically increase by about six decibels for each doubling of the surface density. Therefore, the greater the density of the sound insulation piece 1401, the better. Based on the comprehensive consideration of cost and noise reduction effect, the metal sealing plate can be used as the sound insulation piece 1401 in the present embodiment. The metal sealing plate refers to a plate body made of metal material, which can be a metal composite plate or an alloy plate. Specifically, the metal sealing plate can be a steel plate. The steel plate has high hardness, large density, and low cost. Using the steel plate as the sound insulation piece 1401 can reduce the cost of the heat exchange device and achieve good noise reduction effect. The sound insulation piece 1401 can only include the metal sealing plate, or other plates made of other materials can be arranged on the basis of the metal sealing plate, such as sound-absorbing cotton.

[0152] According to some embodiments of the present application, as shown in FIG. 9, the air outlet area is arranged as an air outlet grille structure.

[0153] The air outlet grating structure can be a structure with gaps formed by parallel or staggered grating bars 146. Alternatively, the first mesh cover 142 can be provided as the air outlet grating structure.

[0154] The air outlet grating structure can have a good rainproof effect, which can make the airflow flow out more smoothly, and can reduce the possibility of rainwater flowing into the heat exchange assembly when it rains. In some implementations, the air outlet grating can include a plurality of grating bars 146 arranged in parallel in the horizontal direction, gaps for airflow to flow are formed between adjacent grating bars 146, and each grating bar 146 is inclined outward in the direction from top to bottom. When rainwater passes through the air outlet grating structure, the rainwater can be discharged outward along the grating, thereby reducing the possibility of rainwater flowing into the heat exchange assembly.

[0155] According to some embodiments of the present application, as shown in FIGS. 4-7, the soundproof cover 140 further includes a surrounding plate 1402 connected to the first wall 111. The surrounding plate 1402 is connected to the first wall 111, surrounds the air outlet 113 and the airflow guiding mechanism 130, and the soundproof member 1401 is connected to the surrounding plate 1402.

[0156] The wall of the shell 110 where the air outlet 113 is provided is the first wall 111, and the circumferential edge of the first wall 111 on the side facing the soundproof member 1401 is connected to the surrounding plate 1402. The soundproof member 1401 is arranged on the inner side of the surrounding plate 1402 and is connected to the surrounding plate 1402.

[0157] The surrounding plate 1402 can be arranged around the circumferential edge of the first wall 111, and the soundproof member 1401 can be connected to the surrounding plate 1402 through the first mesh cover 142 or the connecting rod 141. Alternatively, the airflow guiding mechanism 130 can be arranged on the wall surface (outer wall surface of the first wall 111) of the first wall 111 facing the soundproof member 1401 and located in the space formed by the surrounding plate 1402.

[0158] The surrounding plate 1402 of the present embodiment can reflect noise, thereby improving the noise reduction effect of the soundproof cover 140.

[0159] According to some embodiments of the present application, the surrounding plate is provided as a porous sound-absorbing structure.

[0160] The surrounding plate 1402 can be directly provided as a porous sound-absorbing structure, or a third sound-absorbing structure 145 can be arranged on the surrounding plate 1402 to form a porous sound-absorbing structure.

[0161] The third sound-absorbing structure 145 refers to a structure that can absorb noise to reduce noise. It can be a porous sound-absorbing structure, such as sound-absorbing cotton, sound-absorbing board, etc. The third sound-absorbing structure 145 can also be a resonant sound-absorbing structure, etc.

[0162] When the noise is transmitted outward through the air outlet 113, the third sound-absorbing structure 145 can absorb part of the noise transmitted outward, and the noise emitted by the sound insulation piece 1401 can be transmitted to the third sound-absorbing structure 145 and be absorbed again, so that the noise of the heat exchange assembly is reduced.

[0163] According to some embodiments of the present application, optionally, a gap is arranged between the airflow guiding mechanism 130 and the sound insulation piece 1401 along the arrangement direction of the sound insulation piece 1401 to the first wall 111.

[0164] The gap arranged between the sound insulation piece 1401 and the airflow guiding mechanism 130 can reserve a distance between the air outlet of the airflow guiding mechanism 130 and the sound insulation piece 1401, form a ventilation transition section, reduce the wind resistance, and improve the guiding effect of the airflow guiding mechanism 130 on the airflow.

[0165] According to some embodiments of the present application, optionally, as shown in FIGS. 4, 5, 11, and in combination with FIGS. 14-19, FIG. 14 is a structural schematic diagram of another view of the airflow guiding mechanism according to some embodiments of the present application, FIG. 15 is a sectional view of the airflow guiding mechanism according to some embodiments of the present application, FIG. 16 is an assembly sectional view of the air guide ring and the impeller assembly according to some embodiments of the present application, FIG. 17 is a structural schematic diagram of one view of the impeller assembly according to some embodiments of the present application, FIG. 18 is a structural schematic diagram of another view of the impeller assembly according to some embodiments of the present application, and FIG. 19 is a sectional view of the impeller assembly according to some embodiments of the present application. The airflow guiding mechanism 130 includes an air guide ring 132 and an impeller assembly 131. The air guide ring 132 is installed on the first wall 111. The impeller assembly 131 includes an impeller 1312 and a blade 1313. The impeller 1312 is in a cylindrical shape and surrounds the outside of the blade 1313 and is fixedly connected with the blade 1313. The two ends of the air guide ring 132 in the axial direction are an air ring air inlet end 1325 and an air ring air outlet end 1326, respectively. The two ends of the impeller 1312 in the axial direction are an impeller air inlet end 1316 and an impeller air outlet end 1317, respectively. Along the axial direction of the impeller 1312, the air ring air outlet end 1326 is arranged inside the impeller air inlet end 1316, and along the radial direction of the impeller 1312, the air guide ring 132 and the impeller 1312 are in clearance fit. The impeller assembly 131 is configured to be able to rotate relative to the air guide ring 132. The impeller 1312 is provided with a blocking part 136, which is arranged to protrude from the outer peripheral wall of the impeller 1312.

[0166] When the air outlet 113 is the air inlet of the housing 110, the air flow guiding mechanism 130 can be mounted on the inner wall surface of the first wall 111. As shown in FIG. 4 and FIG. 5, when the air outlet 113 is the air outlet of the housing 110, the air flow guiding mechanism 130 can be mounted on the outer wall surface of the first wall 111. The air guide ring 132 is connected with the first wall 111 to fix the air flow guiding mechanism 130 to the external fixing member.

[0167] The air guide ring 132 can guide the air flow, and the air guide ring 132 can be connected with the first wall 111 to fix the air flow guiding mechanism 130 to the external fixing member. The air guide ring 132 is a substantially cylindrical structure, and a channel for the air flow is formed in the air guide ring 132. Specifically, the air guide ring 132 can be a cylindrical structure with a substantially circular or elliptical cross section, or a cylindrical structure with a polygonal or irregular cross section. The air guide ring 132 is provided with through holes at both axial ends, and the two axial ends of the air guide ring 132 are respectively an air guide ring air inlet end 1325 and an air guide ring air outlet end 1326. The air flow can flow from the air guide ring air inlet end 1325 to the air guide ring air outlet end 1326 along the inside of the air guide ring 132.

[0168] The impeller assembly 131 guides the air flow by rotating, and the flow direction of the air flow can be understood with reference to the arrow C. The impeller 1312 is provided in a cylindrical shape, which can be understood as that the impeller 1312 is at least partially a substantially cylindrical structure. For example, the impeller 1312 can be a substantially circular cylindrical structure as a whole. Of course, the impeller 1312 can also be processed into other shapes of cylindrical structures according to needs. The side wall of the impeller 1312 can be closed to reduce the possibility of air flow leaking from the side wall of the impeller 1312 and easily flowing back to the impeller air inlet end 1316. The impeller 1312 is provided with through holes at both axial ends, and a flow channel for the air flow is formed in the impeller 1312. The two axial ends of the impeller 1312 are respectively an impeller air inlet end 1316 and an impeller air outlet end 1317. The air flow can flow from the air inlet end of the impeller 1312 to the air outlet end 1317 along the inside of the impeller 1312. The blades 1313 can be in a sheet or plate shape, and the blades 1313 can be provided in one or more pieces. The blades 1313 can be provided in the air guide ring 132 and fixedly connected with the inner circumferential wall of the air guide ring 132.

[0169] It can be understood that the flow direction of the air flow in the air guide ring 132 and the impeller assembly 131 can be substantially understood with reference to the axial direction of the air guide ring 132 and the axial direction of the impeller 1312. Optionally, the axial direction of the air guide ring 132 and the axial direction of the impeller 1312 can be substantially coaxial. The radial direction of the air guide ring 132 is substantially perpendicular to the axial direction of the air guide ring 132, that is, substantially perpendicular to the direction of the air flow in the air guide ring 132. The radial direction of the impeller 1312 is substantially perpendicular to the axial direction of the impeller 1312, that is, substantially perpendicular to the direction of the air flow in the impeller 1312.

[0170] As shown in FIG. 15 and FIG. 16, the air ring outflow end 1326 is arranged inside the impeller inflow end 1316, so that the air ring outflow end 1326 communicates with the impeller inflow end 1316. The air ring outflow end 1326 is arranged inside the impeller inflow end 1316, that is, the impeller inflow end 1316 is sleeved outside the air ring 132, and the connection between the air ring outflow end 1326 and the impeller inflow end 1316 forms a stepped surface. The stepped surface in the airflow flow path (i.e., the end surface of the air ring outflow end 1326) is oriented in the same direction as the airflow flow direction, so that the airflow flowing from the air ring outflow end 1326 to the impeller 1312 is not easily interfered by the stop.

[0171] In the radial direction of the air ring 132, the air ring 132 is gap-fitted with the impeller 1312, which is mainly to enable the impeller 1312 to rotate around its own axis. The gap-fitting between the air ring 132 and the impeller 1312 is mainly gap-fitting between the air ring outflow end 1326 and the impeller inflow end 1316 in the radial direction of the air ring outflow end 1326 (also in the radial direction of the impeller inflow end 1316), that is, the sleeve part of the impeller 1312 and the air ring 132 is gap-fitted, so that the impeller 1312 can rotate around its own axis.

[0172] The outer peripheral wall of the impeller 1312 refers to the wall surface of the peripheral wall of the impeller 1312 facing the outside, which constitutes two opposite sides of the peripheral wall of the impeller 1312 with the inner peripheral wall of the impeller 1312. The blocking part 136 is arranged to protrude from the outer peripheral wall of the impeller 1312. It can be understood that at least part of the blocking part 136 is arranged more outward relative to the outer peripheral wall (the outer peripheral wall of the impeller 1312) in the radial direction of the impeller 1312. The blocking part 136 can be arranged in one circle or only a part of the circumference, such as half a circle, 1 / 4 circle, etc. The blocking part 136 can be integrally formed with the impeller 1312, or can be integrally connected by welding or other means. Of course, the blocking part 136 can also be fixedly connected to the impeller 1312 in other ways.

[0173] Optionally, in some embodiments, a plurality of blocking parts 136 are arranged in the axial direction of the impeller 1312. In adjacent two blocking parts 136, the protruding height of the blocking part 136 close to the impeller inflow end 1316 is smaller than the protruding height of the blocking part 136 close to the impeller inflow end 1316. In this embodiment, the closer to the impeller inflow end 1316, the higher the protruding height of the blocking part 136, which can further stop the airflow flowing backward from the impeller outflow end 1317.

[0174] Optionally, the airflow guiding mechanism 130 further comprises a driving member 134 for driving the rotation of the impeller assembly 131, the driving member 134 can be connected with the impeller assembly 131 through an axle 1311, and the blades 1313 are connected on the axle 1311, and the driving member 134 drives the rotation of the axle 1311, the blades 1313 and the impeller 1312. The driving member 134 can be a motor or the like.

[0175] Optionally, the airflow guiding mechanism 130 can further comprise a fixing assembly 133 for connecting the impeller assembly 131 and the air guide ring 132, the fixing assembly 133 can fix the impeller assembly 131 to the air guide ring 132 while keeping the freedom of the impeller assembly 131 rotating around its own axis, so that the assembly of the airflow guiding mechanism 130 can be completed by connecting the air guide ring 132 with the external fixing member.

[0176] When the airflow guiding mechanism 130 operates, the impeller assembly 131 rotates to press the airflow from the air guide ring 132 to the air outlet of the impeller assembly 131 (i.e. the air outlet end 1317 of the impeller). The air guide ring 132 is inserted into the impeller inlet end 1316 of the impeller 1312, so that the stepped surface formed by the sleeve connection of the air guide ring 132 and the impeller 1312 can avoid the flow path of the airflow, improve the smoothness of the airflow, and reduce the possibility of increasing noise caused by the airflow flowing from the air guide ring 132 to the impeller 1312 being disturbed by the stepped surface and generating turbulence; at the same time, the blocking part 136 can block the airflow flowing in the opposite direction of the impeller 1312, reduce the possibility of the airflow flowing out of the air outlet of the impeller 1312 re-entering the impeller 1312 through the gap at the connection between the air guide ring 132 and the impeller 1312, and causing the airflow in the impeller 1312 to separate and become turbulent, and further reduce the noise of the airflow, so that the overall operating noise of the airflow guiding mechanism 130 and the heat exchange equipment 101 applying the airflow guiding mechanism 130 is reduced.

[0177] According to some embodiments of the present application, the impeller inlet end 1316 is provided with a blocking part 136.

[0178] The impeller inlet end 1316 comprises the circumferential wall of the impeller 1312 close to the end face of the inlet end and the end face of the inlet end. That is to say, the blocking part 136 can be provided on the circumferential wall or the end face of the impeller 1312 close to the air guide ring 132. Optionally, the circumferential wall corresponding to the connection position of the impeller 1312 and the air guide ring 132 can be provided with the blocking part 136, and specifically, the blocking part 136 can be a structure formed by outwardly folding the end face of the impeller inlet end 1316.

[0179] The air flow guiding mechanism 130 of the embodiment blocks the air flow backflowing to the impeller air inlet end 1316 by arranging a blocking part 136 at the impeller air inlet end 1316. The blocking part 136 can directly block and interfere with the air flow backflowing to the impeller air inlet end 1316, reduce the air flow backflowing from the impeller air outlet end 1317 to the impeller assembly 131 through the impeller air inlet end 1316, and reduce the operation noise of the air flow guiding mechanism 130.

[0180] According to some embodiments of the present application, the blocking part 136 and the impeller 1312 are an integral structure, as shown in FIGS. 15 and 16.

[0181] The blocking part 136 can be integrally formed with the impeller 1312 in a pouring / injection molding manner or the like. The blocking part 136 can also be integrally connected in a welding manner or the like. Alternatively, the blocking part 136 can be a structure formed by the outer peripheral wall of the impeller 1312 protruding outward, or a structure formed by the end of the impeller 1312 being folded outward.

[0182] The blocking part 136 and the impeller 1312 are arranged as an integral structure in the embodiment, and the blocking part 136 and the outer peripheral wall of the impeller 1312 can be seamlessly connected, improving the blocking effect of the blocking part 136 on the air flow.

[0183] According to some embodiments of the present application, the blocking part 136 is arranged in a closed loop around the outer peripheral wall (the outer peripheral wall of the impeller 1312) of the impeller 1312 in the circumferential direction of the impeller 1312, as shown in FIGS. 15 to 19.

[0184] That is, the blocking part 136 is arranged in a circle on the outer peripheral wall in the circumferential direction of the impeller 1312. It should be noted that when a plurality of blocking parts 136 are arranged in the axial direction of the impeller 1312, one of the blocking parts 136 can be arranged in a circle, and the other blocking parts 136 can be arranged in a circle, or can be arranged locally in the circumferential direction.

[0185] Alternatively, the blocking part 136 can be integrally connected with the outer peripheral wall of the impeller 1312 at any position in the circumferential direction of the impeller 1312, so that the blocking part 136 and the outer peripheral wall of the impeller 1312 are seamlessly connected, reducing the possibility of air flow backflowing to the impeller air inlet end 1316 along the surface of the outer peripheral wall of the impeller 1312.

[0186] The air flow guiding mechanism 130 of the embodiment can block the air flow at any position in the circumferential direction of the impeller 1312, reducing the possibility of the air flow backflowing from the impeller air outlet end 1317 to the impeller assembly 131 through the impeller air inlet end 1316, and reducing the operation noise of the air flow guiding mechanism 130.

[0187] According to some embodiments of the present application, as shown in FIGS. 15-19, the blocking portion 136 includes a first stop segment 1361, one end of the first stop segment 1361 is connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312), and the first stop segment 1361 is arranged to protrude radially from the outer peripheral wall (the outer peripheral wall of the impeller 1312) of the impeller 1312, or the first stop segment 1361 is arranged to gradually approach the air outlet end 1317 of the impeller from one end connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the other end away from the outer peripheral wall (the outer peripheral wall of the impeller 1312).

[0188] Optionally, in one implementation, as shown in FIGS. 15-19, the first stop segment 1361 is arranged to protrude radially from the outer peripheral wall (the outer peripheral wall of the impeller 1312) of the impeller 1312. That is, the protruding direction of the first stop segment 1361 is substantially the same as the radial direction of the impeller 1312, the protruding direction of the first stop segment 1361 is substantially perpendicular to the axial direction of the impeller 1312, and the first stop segment 1361 is perpendicular to the outer peripheral wall (the outer peripheral wall of the impeller 1312) of the impeller 1312.

[0189] Optionally, in another implementation, the end of the first stop segment 1361 away from the outer peripheral wall (the outer peripheral wall of the impeller 1312) is arranged closer to the air outlet end 1317 of the impeller than the end of the first stop segment 1361 connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312). Optionally, the first stop segment 1361 can gradually change, that is, the first stop segment 1361 can be arranged to gradually approach the air outlet end 1317 of the impeller from one end connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the other end away from the outer peripheral wall (the outer peripheral wall of the impeller 1312). Specifically, as shown in FIG. 20, which is a partial cross-sectional schematic view of an impeller assembly according to some embodiments of the present application, in some specific implementations, the first stop segment 1361 can be arranged to be inclined toward the side where the air outlet end 1317 is located from one end connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the other end away from the outer peripheral wall (the outer peripheral wall of the impeller 1312), that is, the protruding direction of the first stop segment 1361 is inclined relative to the radial direction of the impeller 1312, and the first stop segment 1361 is inclined toward the air inlet end 1316 of the impeller. In another implementation, the first stop segment 1361 can be arranged to be arc-shaped curved toward the side where the air outlet end 1317 is located from one end connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the other end away from the outer peripheral wall (the outer peripheral wall of the impeller 1312).

[0190] The first stop segment 1361 of the airflow guiding mechanism 130 is arranged substantially perpendicular to the outer circumferential wall (the outer circumferential wall of the impeller 1312) or gradually approaches the air outlet end 1317 of the impeller, the protruding direction A of the first stop segment 1361 and the flow direction B of the airflow from the air outlet end 1317 of the impeller are at an angle a of less than or equal to 90 degrees, which can better stop the reverse airflow, further reduce the possibility of the airflow from the air outlet end 1317 of the impeller flowing back to the impeller assembly 131 through the air inlet end 1316, and reduce the operation noise of the airflow guiding mechanism 130.

[0191] According to some embodiments of the present application, the blocking part 136 includes a first stop segment 1361, which is arranged to be folded radially outward from the outer circumferential wall of the impeller 1312.

[0192] As shown in FIGS. 15-19, the first stop segment 1361 can be folded radially outward from the outer circumferential wall of the air inlet end 1316. Alternatively, the first stop segment 1361 can also be folded radially outward from the outer circumferential wall of the air outlet end 1317.

[0193] The first stop segment 1361 is folded from the outer circumferential wall of the impeller 1312, which is simple in structure and has an integrated structure between the outer circumferential wall of the impeller 1312 and the first stop segment 1361, thereby reducing the possibility of reverse airflow from the connection between the outer circumferential wall of the impeller 1312 and the first stop segment 1361, further reducing the possibility of the airflow from the air outlet end 1317 of the impeller flowing back to the impeller assembly 131 through the air inlet end 1316, and reducing the operation noise of the airflow guiding mechanism 130.

[0194] According to some embodiments of the present application, as shown in FIG. 21, the blocking part 136 further includes a second stop segment 1362, one end of the first stop segment 1361 away from the outer circumferential wall (the outer circumferential wall of the impeller 1312) is connected to one end of the second stop segment 1362, and the second stop segment 1362 is located on the side of the first stop segment 1361 close to the air outlet end 1317 of the impeller along the axial direction of the impeller 1312, the second stop segment 1362 is arranged at an acute angle, a right angle or an obtuse angle with the first stop segment 1361, and the second stop segment 1362 is arranged spaced apart from the outer circumferential wall (the outer circumferential wall of the impeller 1312).

[0195] The first stop section 1361 can be a straight section or a curved or bent meandering section along the radial direction of the impeller 1312. The second stop section 1362 can be a straight section or a curved or bent meandering section along the radial direction of the impeller 1312. The first stop section 1361 can be connected with the second stop section 1362 at any position along the circumferential direction of the impeller 1312, or the first stop section 1361 can be connected with the second stop section 1362 at a partial position along the circumferential direction of the impeller 1312. The first stop section 1361 and the second stop section 1362 can be an integral structure. The first stop section 1361 and the second stop section 1362 can be directly connected in a straight or bent manner, or can be connected in an arc-shaped section or other transition bent manner.

[0196] The first stop section 1361 is away from the outer circumferential wall (the outer circumferential wall of the impeller 1312) along the radial direction of the impeller 1312, that is, the outer end of the first stop section 1361 along the radial direction of the impeller 1312.

[0197] The side of the first stop section 1361 close to the impeller air outlet end 1317 refers to the side of the first stop section 1361 facing the impeller air outlet end 1317. The second stop section 1362 is spaced apart from the outer circumferential wall (the outer circumferential wall of the impeller 1312), that is, a gap for airflow to enter is provided between the second stop section 1362 and the outer circumferential wall (the outer circumferential wall of the impeller 1312). Specifically, as shown in FIG. 21, the second stop section 1362 can be spaced apart from the outer circumferential wall (the outer circumferential wall of the impeller 1312) at any position from the end away from the first stop section 1361 to the end connected with the first stop section 1361, so that the reverse flow of airflow from the impeller air outlet end 1317 can enter between the second stop section 1362 and the outer circumferential wall (the outer circumferential wall of the impeller 1312).

[0198] In some implementations, the second stop section 1362 is arranged at an acute angle with the first stop section 1361, that is, along the axial direction of the impeller 1312, the end of the second stop section 1362 connected with the first stop section 1361 is closer to the outer circumferential wall (the outer circumferential wall of the impeller 1312) than the end of the second stop section 1362 away from the first stop section 1361 (which is the end of the second stop section 1362 close to the impeller air outlet end 1317).

[0199] In some implementations, the second stop section 1362 is arranged at an obtuse angle with the first stop section 1361, that is, along the axial direction of the impeller 1312, the end of the second stop section 1362 connected with the first stop section 1361 is farther away from the outer circumferential wall (the outer circumferential wall of the impeller 1312) than the end of the second stop section 1362 away from the first stop section 1361 (which is the end of the second stop section 1362 close to the impeller air outlet end 1317).

[0200] In some implementations, as shown in FIG. 21, the second stop segment 1362 is bent at a right angle with the first stop segment 1361, that is, the second stop segment 1362 is arranged perpendicularly with the first stop segment 1361.

[0201] In the air flow guide mechanism 130 of the embodiment, the second stop segment 1362 is arranged on the side of the first stop segment 1361 close to the impeller outflow end 1317, and the second stop segment 1362 is arranged spaced apart from the outer peripheral wall (the outer peripheral wall of the impeller 1312). The second stop segment 1362 can cooperate with the first stop segment 1361 to form a stop groove with an opening facing the impeller outflow end 1317. Under the restriction of the second stop segment 1362, the stop effect on the air flow flowing reversely from the impeller outflow end 1317 can be further improved, the possibility of the air flow discharged from the impeller outflow end 1317 flowing reversely to the impeller assembly 131 through the impeller inflow end 1316 can be further reduced, and the operation noise of the air flow guide mechanism 130 can be reduced.

[0202] According to some embodiments of the present application, as shown in FIG. 21, the blocking part 136 further comprises a second stop segment 1362, which is arranged to be folded from the outer end of the first stop segment 1361 in the radial direction of the impeller 1312 to the axial direction.

[0203] The second stop segment 1362 is folded from the first stop segment 1361, which is simple in structure and convenient to process. Moreover, the connection between the second stop segment 1362 and the first stop segment 1361 is an integral structure, which reduces the possibility of the air flow flowing reversely from the connection between the second stop segment 1362 and the first stop segment 1361, further reduces the possibility of the air flow discharged from the impeller outflow end 1317 flowing reversely to the impeller assembly 131 through the impeller inflow end 1316, and reduces the operation noise of the air flow guide mechanism 130.

[0204] According to some embodiments of the present application, as shown in FIG. 15 and FIG. 16, the flow passage cross section of the air guide ring 132 is arranged to be tapered along the direction from the air ring inflow end 1325 to the air ring outflow end 1326.

[0205] The direction from the air ring inflow end 1325 to the air ring outflow end 1326 is also the flow direction of the air flow. Along the flow direction of the air flow, the air guide ring 132 can be at least partially arranged to be tapered, so that the flow area of the air flow gradually decreases, to improve the air guide effect on the air flow.

[0206] Optionally, in some implementations, the air guide ring 132 includes a first air guide section 1323 and a second air guide section 1324, and the flow passage cross section of the first air guide section 1323 is arranged to be tapered in the direction from the air guide ring air inlet end 1325 to the air guide ring air outlet end 1326, the air outlet end of the first air guide section 1323 is arranged to be connected and communicated with the air inlet end of the second air guide section 1324, and the second air guide section 1324 is a straight cylinder section and is inserted into the impeller air inlet end 1316.

[0207] The flow passage cross section can be understood as the cross section of the region through which the airflow passes in the airflow channel. Specifically, the flow passage cross section of the first air guide section 1323 is the cross section of the airflow channel formed by the first air guide section 1323 along the axial direction of the first air guide section 1323; and the flow passage cross section of the second air guide section 1324 is the cross section of the airflow channel formed by the second air guide section 1324 along the axial direction of the second air guide section 1324.

[0208] The direction from the air guide ring air inlet end 1325 to the air guide ring air outlet end 1326 is the flow direction of the airflow in the air guide ring 132. In the flow direction of the airflow, the flow passage cross section of the first air guide section 1323 is tapered, which can better guide the airflow. The first air guide section 1323 can be a section with the same flow passage cross section change rate, or can include multiple sub-sections with different flow passage cross section change rates. Optionally, in some embodiments, the first air guide section 1323 includes a first sub-section 1327 and a second sub-section 1328, and the first sub-section 1327, the second sub-section 1328, and the second air guide section 1324 are sequentially connected and communicated in the flow direction of the airflow, the flow passage cross section change rate of the first sub-section 1327 is greater than that of the second sub-section 1328, that is, the first sub-section 1327 is more obviously tapered than the second sub-section 1328, for example, in the axial direction, the first sub-section 1327 and the second sub-section 1328 are both arranged to be arc-shaped and tapered, and the curvature of the first sub-section 1327 is greater than that of the second sub-section 1328. By arranging the flow passage cross section change rate of the section close to the air inlet end to be greater than that of the section close to the air outlet end, the airflow guiding effect can be improved, and the noise can be reduced.

[0209] The air outlet end of the second air guide section 1324 is arranged to be connected and communicated with the air inlet end of the second air guide section 1324, which can be understood as that the flow passage cross section of the second air guide section 1324 is substantially the same as the flow passage cross section of the air outlet end of the first air guide section 1323 in terms of area and shape, so that the air outlet end of the first air guide section 1323 is connected with the air inlet end of the second air guide section 1324, and the airflow can flow smoothly at this position.

[0210] The second air guide section 1324 is a straight cylinder section. It can be understood that the shape and area of the flow section of the second air guide section 1324 remain unchanged from the air inlet end to the air outlet end. The second air guide section 1324 is arranged as a straight cylinder section and is used to be inserted into the impeller air inlet end 1316. This can improve the cooperation between the second air guide section 1324 and the impeller 1312, reduce the gap between the air guide ring 132 and the impeller 1312 in the radial direction, reduce the flow of air (air flowing out of the air outlet of the impeller 1312) flowing back through the gap between the air guide ring 132 and the impeller 1312 and then entering the impeller 1312 again, and reduce noise. It should be noted that the impeller 1312 can be arranged as a straight cylinder section at least at the impeller air inlet end 1316 to better cooperate with the second air guide section 1324.

[0211] The structure of the air guide ring 132 of the air flow guide mechanism 130 of the embodiment can not only play a good flow guiding role, but also reduce the flow of air (air flowing out of the air outlet of the impeller 1312) flowing back through the gap between the air guide ring 132 and the impeller 1312 and then entering the impeller 1312 again, and reduce noise.

[0212] According to some embodiments of the present application, as shown in FIGS. 15-21, along the axial direction of the impeller 1312, the two ends of the blade 1313 do not exceed the end surface of the corresponding end of the impeller 1312.

[0213] The two ends of the blade 1313 do not exceed the end surface of the corresponding end of the impeller 1312. It can be understood that the blade 1313 is entirely located within the axial dimension of the impeller 1312. The end surface of the blade 1313 facing the impeller air outlet end 1317 can be flush with or located inside the impeller air outlet end 1317. The end surface of the blade 1313 facing the impeller air inlet end 1316 can be flush with or located inside the impeller air inlet end 1316. The blade 1313 is entirely located within the axial dimension of the impeller 1312. This can improve the cooperation between the blade and the impeller 1312 and improve the guiding ability of the air flow guide mechanism 130.

[0214] According to some embodiments of the present application, as shown in FIGS. 15-21, along the axial direction of the impeller 1312, the distance between the blade 1313 and the end surface of the impeller air outlet end 1317 is a first size, and the distance between the blade 1313 and the end surface of the impeller air inlet end 1316 is a second size L. The first size is smaller than the second size L.

[0215] Optionally, along the axial direction of the impeller 1312, the two ends of the blade 1313 do not exceed the end surface of the corresponding end of the impeller 1312, respectively, and the first size is smaller than the second size L. The first size is the interval distance between the end surface of the blade 1313 towards the outflow end 1317 of the impeller and the end surface of the outflow end 1317 of the impeller along the axial direction of the impeller 1312. The second size L is the interval distance between the end surface of the blade 1313 towards the inflow end 1316 of the impeller and the end surface of the inflow end 1316 of the impeller along the axial direction of the impeller 1312. It should be noted that the first size can be zero (i.e. the blade 1313 is flush with the end surface of the outflow end 1317 of the impeller) or positive. Since the first size is smaller than the second size L, the second size L is positive, so the end surface of the impeller 1312 towards the inflow end 1316 of the impeller is located inside the inflow end 1316 of the impeller. It can be understood that the second size L is larger, which can provide assembly space for the air guide ring 132, so that the air guide ring 132 can be inserted into the inflow end of the impeller 1312 without interfering with the blade 1313 in the axial direction, and the first size is smaller, which can make the outflow end 1317 of the impeller have a higher airflow pressure, which is conducive to promoting the rapid flow of airflow.

[0216] According to some embodiments of the present application, optionally, referring to FIGS. 11, 14-15, and in combination with FIG. 22, FIG. 22 is a schematic diagram of part of the airflow guiding mechanism according to some embodiments of the present application, the air guide ring 132 further comprises an assembly part 1322, the outer wall surface of the inflow end 1325 of the air guide ring is connected with the assembly part 1322, the assembly part 1322 extends outwardly along the radial direction of the impeller 1312, and the assembly part 1322 is used to connect with an external fixing member.

[0217] For the convenience of description and understanding, the main part of the air guide ring 132 is defined as the cover part 1321. Specifically, the air guide ring 132 comprises the cover part 1321 and the assembly part 1322, the two ends of the cover part 1321 along the axial direction of the air guide ring 132 are the inflow end 1325 and the outflow end 1326 of the air guide ring, respectively, the outer wall surface of the inflow end 1325 of the cover part 1321 is connected with the assembly part 1322, the assembly part 1322 is used to connect with an external fixing member, and the airflow guiding mechanism 130 further comprises a fixing assembly 133, the impeller assembly 131 is installed on the assembly part 1322 through the fixing assembly 133.

[0218] The assembly part 1322 is fixedly connected with the cover part 1321, and the two can be an integrated structure. Optionally, the assembly part 1322 can be a structure formed by outwardly folding the inflow end 1325 of the cover part 1321. Optionally, the assembly part 1322 can be a flange structure, and the assembly part 1322 can be detachably connected with an external fixing member through bolts or the like.

[0219] The air flow guiding mechanism 130 can fix the air guide ring 132 to the external fixing member by setting the assembling part 1322.

[0220] According to some embodiments of the present application, as shown in FIG. 22, the air flow guiding mechanism 130 further comprises a fixing assembly 133, and the impeller assembly 131 is installed on the assembling part 1322 through the fixing assembly 133. The fixing assembly 133 connects the impeller assembly 131 and the assembling part 1322, so that the impeller assembly 131 is installed on the assembling part 1322. It should be noted that the fixing assembly 133 is relatively fixed with the assembling part 1322, and the impeller assembly 131 can rotate relative to the fixing assembly 133. For example, the fixing assembly 133 can comprise a connecting frame 1330 and a bearing fixed on the connecting frame 1330, the connecting frame 1330 is fixedly connected with the assembling part 1322, and the bearing is connected with the wheel shaft 1311 of the impeller assembly 131 through a shaft, so that the impeller assembly 131 can rotate relative to the fixing assembly 133, and can be installed on the assembling part 1322 through the fixing assembly 133; for another example, the fixing assembly 133 can be connected with a fixed part of a driving part 134 (such as a motor) of the impeller assembly 131, and a driving output end 1343 of the driving part 134 is connected with the impeller assembly 131, so that the impeller assembly 131 can rotate relative to the fixing assembly 133, and can be installed on the assembling part 1322 through the fixing assembly 133.

[0221] The air flow guiding mechanism 130 of the embodiment sets the air guide ring 132 on the assembling part 1322, and installs the impeller assembly 131 on the assembling part 1322, so that the air guide ring 132 and the impeller assembly 131 are integrated, and the structure is simple. By connecting the assembling part 1322 with the external fixing member, the whole air flow guiding mechanism 130 can be fixed on the external fixing member, and the operation is convenient.

[0222] According to some embodiments of the present application, as shown in FIG. 22, the air flow guiding mechanism 130 further comprises a driving part 134, and the impeller assembly 131 further comprises a wheel shaft 1311, the wheel shaft 1311 is arranged in the impeller 1312, the blades 1313 are connected with the wheel shaft 1311, and the driving part 134 is connected with one end of the wheel shaft 1311 away from the air guide ring 132.

[0223] The blades 1313 and the wheel shaft 1311 can be arranged in the axial direction of the impeller 1312 and spaced apart from the air guide ring 132, so that the impeller assembly 131 can rotate around its own axis, and the possibility of mutual interference between the impeller assembly 131 and the air guide ring 132 is reduced.

[0224] Optionally, the plurality of blades 1313 are connected to the wheel shaft 1311 at intervals along the circumference of the wheel shaft 1311. The blade 1313, the wheel shaft 1311 and the impeller 1312 can be an integrated structure.

[0225] The driving member 134 can include a motor, and an output shaft of the motor is fixedly connected to the wheel shaft 1311 to drive the impeller assembly 131 to rotate about the axis thereof.

[0226] In some embodiments, the impeller assembly 131 can be supported and fixed by the output shaft of the motor, and the driving member 134 is fixedly connected to the assembly portion 1322 by the fixing assembly 133, so that the fixing assembly 133 can support and fix the driving member 134 and the impeller assembly 131. Specifically, the airflow guiding mechanism 130 further includes the driving member 134, and the impeller assembly 131 further includes the wheel shaft 1311 arranged in the impeller 1312, the blade 1313 connected to the wheel shaft 1311, and the blade 1313 and the wheel shaft 1311 are both arranged at intervals along the axis of the impeller 1312 from the air guide ring 132. The driving member 134 is connected to one end of the wheel shaft 1311 away from the air guide ring 132, and the fixing assembly 133 is connected to the driving member 134 to mount the impeller assembly 131 and the driving member 134 to the assembly portion 1322.

[0227] Optionally, in some implementations, the fixing assembly 133 includes a connecting frame 1330, one end of the connecting frame 1330 is detachably fixedly connected to the driving member 134 by bolts or the like, and the other end of the connecting frame 1330 is detachably fixedly connected to the assembly portion 1322 by bolts or the like. Through the detachable manner, the disassembly and maintenance of the driving member 134 and the impeller assembly 131 are facilitated.

[0228] The airflow guiding mechanism 130 of the present embodiment integrates the driving member 134, the impeller assembly 131 and the air guide ring 132 into one body, which facilitates the assembly of the airflow guiding mechanism 130 with external fixing members, and the impeller assembly 131 and the driving member 134 are fixedly connected to the assembly portion 1322 by the same fixing assembly 133, which is simple in structure and convenient to disassemble and assemble.

[0229] According to some embodiments of the present application, the wheel shaft 1311 is provided with an installation cavity 1314, and the driving member 134 is arranged in the installation cavity 1314, and the driving member 134 is arranged to drive the wheel shaft 1311 to rotate the impeller assembly 131.

[0230] In an optional implementation, the wheel shaft 1311 is provided with a mounting cavity 1314 penetrating an end surface of the wheel shaft 1311 away from the guide ring 132, and the wheel shaft 1311 is further provided with a transmission portion 1315 located at an end of the wheel shaft 1311 close to the guide ring 132. The partial driving member 134 is arranged in the mounting cavity 1314 and is in clearance fit with a hole wall of the mounting cavity 1314. The driving output end 1343 of the driving member 134 is connected with the transmission portion 1315 to drive the wheel shaft 1311 to rotate and drive the impeller assembly 131 to rotate.

[0231] As shown in FIGS. 15-21, the mounting cavity 1314 is hollow in the wheel shaft 1311. An end of the mounting cavity 1314 away from the guide ring 132 is in open structure, and an end of the mounting cavity 1314 close to the guide ring 132 is sealed. The body of the motor is inserted into the mounting cavity 1314 and is in clearance fit with the mounting cavity 1314, so that the impeller assembly 131 can rotate relative to the body of the motor. The output shaft of the motor is fixedly connected with the transmission portion 1315, so that the output shaft of the motor can drive the impeller assembly 131 to rotate.

[0232] The transmission portion 1315 and the driving output end 1343 can be connected by a key or fixedly connected by a bolt. Optionally, in a specific implementation, the transmission portion 1315 is provided with a polygonal hole, and the driving output end 1343 is provided in a polygonal structure. The driving output end 1343 is inserted into the polygonal hole, so that the driving output end 1343 is fixed relative to the transmission portion 1315 in the circumferential direction. The driving output end 1343 is provided with a limiting portion 1345 on the inner side of the polygonal hole (the side of the polygonal hole facing the mounting cavity 1314). The driving output end 1343 penetrates the polygonal hole and is screwed with a nut assembly 1344 on the outer side of the polygonal hole (the side of the polygonal hole away from the mounting cavity 1314). The nut assembly 1344 and the limiting portion 1345 fix the driving output end 1343 relative to the transmission portion 1315 in the axial direction, so as to realize the fixed connection of the driving output end 1343 with the wheel shaft 1311.

[0233] It should be noted that, in the axial direction of the impeller assembly 131, the body of the driving member 134 can be entirely located in the mounting cavity 1314 or partially protrude from the mounting cavity 1314.

[0234] The airflow guiding mechanism 130 of the embodiment has the driving member 134 at least partially built in the mounting cavity 1314, so that the airflow guiding mechanism 130 has a smaller volume and saves cost. The driving member 134 is substantially built in the mounting cavity 1314, which can reduce the damage of rainwater and the like to the driving member 134 and improve the reliability of the driving member 134.

[0235] According to some embodiments of the present application, the air flow guiding mechanism 130 further comprises a protective mesh cover 135, which covers the radial outer side of the impeller assembly 131 along the impeller 1312, as shown in FIG. 11, FIG. 14-15 and FIG. 22.

[0236] The protective mesh cover 135 is a meshed cover structure, which can be mounted on the assembly portion 1322 and covers the end of the impeller assembly 131 away from the air guide ring 132. The driving member 134 can be located wholly or partially within the protective mesh cover 135.

[0237] By providing the protective mesh cover 135, the air flow guiding mechanism 130 can meet the air outlet requirement, reduce the entry of foreign matters into the air flow guiding mechanism 130, improve the reliability of the air flow guiding mechanism 130, and reduce the risk of the operator being injured by the air flow guiding mechanism 130.

[0238] Optionally, in some implementations, the protective mesh cover 135 can be provided with an assembly hole 1351, the driving member 134 partially protrudes from the mounting cavity 1314 and is located in the assembly hole 1351, one end of the fixing assembly 133 is connected with the driving member 134, and the other end bypasses the protective mesh cover 135 and is connected with the assembly portion 1322, and the protective mesh cover 135 is pressed against the assembly portion 1322 by the fixing assembly 133. Optionally, the fixing assembly 133 can comprise a connecting frame 1330, which comprises a first connecting portion 1331 and a second connecting portion 1332 connected with each other, the first connecting portion 1331 extends substantially along the axial direction of the impeller 1312, one end of the first connecting portion 1331 is connected with the assembly portion 1322, the other end of the second connecting portion 1332 is connected with one end of the second connecting portion 1332, the second connecting portion 1332 extends substantially along the radial direction of the impeller 1312, and the other end of the second connecting portion 1332 bypasses the side of the protective mesh cover 135 away from the impeller assembly 131 and is fixedly connected with the driving member 134. The connecting frame 1330 can be spaced apart along the circumferential direction of the protective mesh cover 135. The first connecting portion 1331 can be provided with a connecting plate 1333, which is attached to the assembly portion 1322 and can be fixedly connected with the assembly portion 1322 by bolts or other fasteners. The first connecting portion 1331 and the second connecting portion 1332 can be an integral structure. The body of the driving member 134 can be provided with a protruding connecting block 1341, the second connecting portion 1332 is fixedly connected with the connecting block 1341, and the second connecting portion 1332 can be detachably connected with the connecting block 1341 by bolts or other fasteners. The end of the second connecting portion 1332 away from the first connecting portion 1331 can be provided with a connecting plate, and the second connecting portion 1332 is attached to the positioning ring plate 1334 or the connecting block 1341 by the connecting plate and can be fixedly connected with the positioning ring plate 1334 by bolts or other fasteners.

[0239] Optionally, the fixing assembly 133 can further include a positioning ring plate 1334 arranged in the assembly hole 1351 and sleeved on the outside of the driving member 134, and the second connecting portion 1332 is further fixedly connected with the positioning ring plate 1334. The positioning ring plate 1334 is supported and fixed by the connecting frame 1330, and the positioning ring plate 1334 can limit the movement of the protective mesh cover 135 in the radial direction, thereby improving the assembly stability of the protective mesh cover. The positioning ring plate 1334 and the second connecting portion 1332 can be detachably connected by bolts or the like.

[0240] Optionally, the driving member 134 can have a small part exposed outside the protective mesh cover 135, and this part can be connected with a power line assembly 1342 for supplying power to the driving member 134. By arranging the power line assembly 1342 outside, the power line assembly 1342 is less likely to interfere with the protective mesh cover 135, thereby improving the convenience of connecting the power line assembly 1342 with the power supply.

[0241] The embodiment has simple structure and high assembly stability, and when the impeller assembly 131 needs to be maintained, the protective mesh cover 135, the driving member 134 and the impeller assembly 131 can be disassembled by disassembling the fixing assembly 133, thereby improving the convenience of operation.

[0242] According to some embodiments of the present application, as shown in FIGS. 11, 15, 16 and 22, along the axial direction of the air guide ring 132, the cover body portion 1321 includes a protruding portion 1329 protruding from the assembly portion 1322, the protruding portion 1329 is arranged in the air outlet 113 of the first wall, and the protruding portion 1329 is arranged as the air guide ring air inlet end 1325.

[0243] Along the axial direction of the air guide ring 132, the protruding portion 1329 protrudes towards the side of the cover body portion 1321 away from the impeller assembly 131. The protruding portion 1329 as the air guide ring air inlet end 1325 can be understood as that the protruding portion 1329 surrounds the air inlet of the air flow channel of the air guide ring 132, and the inner wall surface of the protruding portion 1329 (the inner peripheral surface of the protruding portion 1329 facing the air flow channel) is aligned and connected with the inner wall surface of the main body portion of the cover body portion 1321. Along the flow direction of the air flow, the inner wall surface of the protruding portion 1329 can be arranged to be tapered, so as to improve the guiding effect on the air flow and reduce the noise.

[0244] Referring to FIGS. 4 and 5, when the air flow guiding mechanism 130 is assembled with the first wall 111, the assembly portion 1322 can be attached to the first wall 111, the impeller assembly 131 is located on the side of the assembly portion 1322 away from the external fixing member, and the protruding portion 1329 can be inserted into the air outlet 113. The protruding portion 1329 can make the air flow more smoothly to the air flow guiding mechanism 130, thereby reducing the air flow pressure loss and improving the guiding efficiency of the air flow guiding mechanism 130 on the air flow.

[0245] As shown in FIGS. 3-6, the present embodiment provides a heat exchange assembly, which comprises a shell 110, a first heat exchanger 120 and a mixed flow fan, the first heat exchanger 120 is arranged in the shell 110, the shell 110 has an air inlet 112 and an air outlet 113, wherein the air outlet 113 is arranged on the first wall 111, and the first heat exchanger 120 is used for heat exchange with external airflow. The mixed flow fan is arranged at the air outlet 113, and the mixed flow fan is arranged on the outer wall surface of the first wall 111, and the path driven by the mixed flow fan for the airflow to flow outward forms an exhaust path E. At least part of the sound insulation piece 1401 is arranged opposite to the air outlet 113, and the outer side of the circumferential edge of the sound insulation piece 1401 is provided with an exhaust area F, and the exhaust path E passes through the exhaust area F. The first wall 111 is provided with two air outlets 113, and the two air outlets 113 are respectively provided with mixed flow fans, and the two air outlets 113 are respectively provided with sound insulation pieces 1401 away from the first wall 111, and the sound insulation pieces 1401 at the corresponding positions of the two air outlets 113 are integrated structures, and the mixed flow fan comprises an impeller 1312, along the axial direction of the air outlet 113, a part of the projection of the sound insulation piece 1401 to the impeller 1312 is located within the radial dimension range of the impeller 1312. The heat exchange assembly further comprises a first sound absorption structure 143, the first sound absorption structure 143 comprises a porous sound absorption structure, and the first sound absorption structure 143 is arranged on the side of the sound insulation piece 1401 facing the air outlet 113. The heat exchange assembly further comprises a second sound absorption structure 144, and the wall surface of the first wall 111 facing the sound insulation piece 1401 is provided with the second sound absorption structure 144. The wall of the shell 110 provided with the air outlet 113 is the first wall 111, and the circumferential edge of the side of the first wall 111 facing the sound insulation piece 1401 is connected with a surrounding plate 1402, the sound insulation piece 1401 is connected to the surrounding plate 1402 through a connecting rod 141, and the surrounding plate 1402 is provided with a third sound absorption structure 145. The sound insulation piece 1401 is a steel plate. The sound insulation piece 1401 can be provided with an indicator light 400. The circumferential edge part of the sound insulation piece 1401 can be provided with a reinforcing part to improve the strength of the sound insulation piece, and the reinforcing part can be a reinforcing rib formed by concave-convex of the sound insulation piece 1401.

[0246] It should be noted that, as shown in FIG. 7 and FIG. 9, the exhaust area F of the heat exchange assembly of the embodiment can also be provided with a first mesh cover 142, in the case of providing the first mesh cover 142, the connecting rod 141 can be cancelled, and the sound insulation piece 1401 can be connected with the enclosing plate 1402 through the first mesh cover 142. It should be noted that, as shown in FIG. 10, the two sound insulation pieces 1401 of the heat exchange assembly of the embodiment can also be spaced apart, each sound insulation piece 1401 is arranged opposite to the corresponding position of the air outlet 113, along the axial direction of the air outlet 113, the projection of the sound insulation piece 1401 to the impeller 1312 is all located within the radial dimension range of the impeller 1312, and a fixing plate for installing the indicator light 400 can also be arranged between the two sound insulation pieces 1401. It should be noted that the sound insulation piece 1401 of FIG. 10 is provided with a small hole structure with a small proportion, that is, the proportion of the small hole structure is much smaller than the area of the plate body of the sound insulation piece 1401.

[0247] Some embodiments of the present application also provide a heat exchange device 101, comprising a compressor 150, a throttling assembly 160, a second heat exchanger 180, a refrigerant pipeline 190 and a heat exchange assembly, wherein the heat exchange assembly can be the heat exchange assembly proposed in the present application or any embodiment of the present application, the compressor 150, the first heat exchanger 120, the throttling assembly 160 and the second heat exchanger 180 are connected in sequence through the refrigerant pipeline 190 to form a refrigerant loop.

[0248] Any one of the compressor 150, the throttling assembly 160 and the second heat exchanger 180 can also be integrated in the shell 110, of course, these components can also be independently arranged.

[0249] The heat exchange device 101 of the embodiment has the same beneficial effects as the heat exchange assembly proposed in the present application or any embodiment of the present application.

[0250] Some embodiments of the present application also provide an energy storage device 10, comprising a battery 12 and a thermal management system 14, the thermal management system 14 is used for adjusting the temperature of the battery 12; wherein the thermal management system 14 comprises a second heat exchange loop 200 and a first heat exchange loop 100, the second heat exchange loop 200 is used for heat exchange with the battery 12; the first heat exchange loop 100 comprises a heat exchange device 101 or a heat exchange assembly, the heat exchange device 101 can be the heat exchange device 101 proposed in the present application or any embodiment of the present application, the heat exchange assembly can be the heat exchange assembly proposed in the present application or any embodiment of the present application, and the first heat exchange loop 100 is used for heat exchange with the second heat exchange loop 200.

[0251] The energy storage device 10 of the embodiment has the same beneficial effects as the heat exchange assembly proposed in the present application or any embodiment of the present application.

[0252] According to some embodiments of the present application, the energy storage device 10 optionally further comprises a cabinet 11 for accommodating the battery 12, and the heat exchange assembly is arranged inside or outside the cabinet 11.

[0253] Some embodiments of the present application further provide a charging system comprising a charging pile, and the charging system further comprises the energy storage device 10 according to the present application or any of the embodiments of the present application, and the charging pile is electrically connected with the battery 12 of the energy storage device 10, and the energy storage device 10 is configured to provide electric energy for the charging pile.

[0254] The charging pile refers to a power supply device for providing power supply for an electric device (such as an electric vehicle) or the like. The energy storage device 10 can convert the electric current of the energy storage device 10 into electric energy for the charging pile or the like by arranging a power conversion device.

[0255] The charging system according to the present embodiment has the same beneficial effects as the energy storage device 10 according to the present application or any of the embodiments of the present application.

[0256] The above description of each embodiment tends to emphasize the differences between each embodiment, and the same or similar parts can be referred to each other, and for the sake of brevity, the same or similar parts will not be described herein.

[0257] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A heat exchange assembly, wherein, The shell has a containing cavity and a first wall surrounding the containing cavity, and the first wall is provided with an air outlet communicating with the containing cavity; The first heat exchanger is arranged in the containing cavity and used for heat exchange with external airflow; The airflow guide mechanism is arranged at the air outlet and used for guiding airflow to flow through the first heat exchanger; The soundproof cover is arranged to connect the first wall and surround the air outlet and the airflow guide mechanism; The soundproof cover is provided with an air exhaust area, and the soundproof cover comprises a soundproof piece arranged at a region of the soundproof cover opposite to the first wall to reduce the operation noise of the heat exchange assembly. When the airflow guide mechanism is a diagonal outflow, the soundproof piece is arranged at a region of the soundproof cover opposite to the airflow guide mechanism; 2. The heat exchange assembly of claim 1, wherein, When the airflow guide mechanism is an axial outflow, the soundproof piece is arranged at a region of the soundproof cover surrounding the airflow guide mechanism and opposite to the first wall. When the soundproof piece is arranged at the region of the soundproof cover opposite to the airflow guide mechanism, the air exhaust area is arranged around the soundproof piece; 3. The heat exchange assembly of claim 2, wherein, When the soundproof piece is arranged at the region of the soundproof cover surrounding the airflow guide mechanism and opposite to the first wall, the soundproof piece is arranged around the air exhaust area. When the soundproof piece is arranged at the region of the soundproof cover opposite to the airflow guide mechanism, the soundproof cover further comprises a plurality of spaced connection rods, and the soundproof piece is connected to the shell through the connection rods, and the air exhaust area is formed between adjacent connection rods, or the soundproof cover further comprises a first mesh cover, and the soundproof piece is connected to the shell through the first mesh cover, and the first mesh cover is arranged as the air exhaust area.

4. Heat exchange assembly according to any of claims 1-3, wherein The first wall is provided with a plurality of air outlets, and each air outlet is provided with the airflow guide mechanism, and the positions opposite to the airflow guide mechanisms are provided with the soundproof pieces, and the soundproof pieces corresponding to each airflow guide mechanism are spaced or are an integral structure.

5. The heat exchange assembly of claim 4, wherein, When the soundproof piece is arranged at the region of the soundproof cover surrounding the airflow guide mechanism and opposite to the first wall, the circumferential edge of the soundproof piece is connected to the first wall, and the middle part of the soundproof piece is hollow to form the air exhaust area.

6. Heat exchange assembly according to any of claims 1-4, wherein The first wall is provided with a plurality of air outlets, and each air outlet is provided with the airflow guide mechanism, and the soundproof piece surrounds the plurality of airflow guide mechanisms.

7. The heat exchange assembly of claim 6, wherein, The soundproof piece comprises a porous sound-absorbing structure.

8. Heat exchange assembly according to any of claims 1-7, wherein The soundproof piece comprises a metal sealing plate.

9. Heat exchange assembly according to any of claims 1-8, wherein The air exhaust area is arranged as an air outlet grille structure.

10. Heat exchange assembly according to any of claims 1-9, wherein The soundproof cover further comprises a surrounding plate connected to the first wall, the surrounding plate is connected to the first wall, the surrounding plate surrounds the air outlet and the airflow guide mechanism, and the soundproof piece is connected to the surrounding plate.

11. Heat exchange assembly according to any of claims 1-10, wherein The surrounding plate is arranged as a porous sound-absorbing structure.

12. The heat exchange assembly of claim 11, wherein, In the arrangement direction of the first wall to the soundproof piece, there is a spacing gap between the airflow guide mechanism and the soundproof piece.

13. The heat exchange assembly of any one of claims 1-12, wherein, The airflow guide mechanism comprises:

14. The heat exchange assembly of any one of claims 1-13, wherein, An air guide ring mounted on the first wall; ​ Impeller assembly, comprising an impeller and a blade, the impeller is cylindrically arranged, the impeller is arranged outside the blade and is fixedly connected with the blade, the air ring has air ring air inlet end and air ring air outlet end at two axial ends respectively, the impeller has impeller air inlet end and impeller air outlet end at two axial ends respectively, along the axial direction of the impeller, the air ring air outlet end is arranged inside the impeller air inlet end, and along the radial direction of the impeller, the air ring and the impeller are gap-fitted, and the impeller assembly is configured to be able to rotate relative to the air ring. The impeller is provided with a blocking portion, and the blocking portion is arranged to protrude from the outer peripheral wall of the impeller.

15. The heat exchange assembly of any one of claims 1-14, wherein, The shell is further provided with an air inlet communicated with the accommodating cavity, and the air inlet is arranged in a mesh structure.

16. A heat exchange apparatus wherein, The heat exchange device comprises a compressor, a throttling assembly, a second heat exchanger, a refrigerant pipeline and the heat exchange assembly according to any one of claims 1-15, and the compressor, the first heat exchanger, the throttling assembly and the second heat exchanger are sequentially connected through the refrigerant pipeline.

17. An energy storage device, wherein, Comprise: a battery; a thermal management system for adjusting the temperature of the battery; wherein the thermal management system comprises: a first heat exchange circuit for heat exchange with the battery; and a second heat exchange circuit comprising the heat exchange assembly according to any one of claims 1-15 or the heat exchange device according to claim 16, the second heat exchange circuit is used for heat exchange with the first heat exchange circuit.

18. The energy storage device of claim 17, wherein, The energy storage device further comprises a cabinet body for accommodating the battery, and the heat exchange assembly is arranged inside or outside the cabinet body.

19. A charging system, wherein, Comprise: a charging pile; and the energy storage device according to claim 17 or 18, the charging pile is electrically connected with the battery of the energy storage device, and the energy storage device is used for providing electric energy for the charging pile.

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