Energy storage device and charging system

Abstract

The invention relates to the technical field of energy storage related equipment, and discloses an energy storage device and a charging system.The energy storage device comprises a bin body, a battery device, a heat exchange assembly and the heat exchange assembly, and the battery device is contained in the bin body; the heat exchange assembly is used for adjusting the temperature of the battery device and comprises a shell, a first heat exchanger and a fan, and the first heat exchanger is arranged in the shell and used for conducting heat exchange on the battery device; the draught fan is arranged in the shell in an axial flow air outlet mode and used for conducting heat exchange on the first heat exchanger. The shell comprises a first wall and a second wall which are oppositely arranged, the fan is arranged on the first wall, the second wall comprises an air outlet and a baffle, the air outlet is arranged right opposite to the fan in the thickness direction of the first wall, the baffle surrounds the air outlet, and a sound absorption structure is arranged between the first wall and the second wall. Noise of the energy storage device is reduced, and the operation environment of the energy storage device is improved.

Description

[0001] Priority information

[0002] This application claims priority to international patent application No. PCT / CN2024 / 110401, filed on August 7, 2024, entitled “Heat Exchange Components, Heat Exchange Equipment, Energy Storage Devices and Charging Systems”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of energy storage-related equipment technology, and in particular to an energy storage device and charging system. Background Technology

[0004] This section provides only background information relevant to this application and is not necessarily prior art.

[0005] Energy storage devices can include a cabinet and batteries, and have a high energy density. The energy storage device can be equipped with heat exchange equipment to regulate the battery temperature. However, the heat exchange equipment generates significant noise during operation, which has a considerable impact on the operating environment of the energy storage device. Summary of the Invention

[0006] In view of the above problems, this application provides an energy storage device and a charging system to at least alleviate the problem of excessive noise in the energy storage device.

[0007] The first aspect of this application discloses an energy storage device, including a housing, a battery device, and a heat exchange assembly. The battery device is housed within the housing. The heat exchange assembly is used to regulate the temperature of the battery device. The heat exchange assembly includes a shell, a first heat exchanger, and a fan. The first heat exchanger is disposed within the shell and is used to exchange heat with the battery device. The fan is configured as an axial flow outlet and is disposed within the shell. The fan is used to exchange heat with the first heat exchanger. The shell includes a first wall and a second wall disposed opposite to each other. The fan is disposed on the first wall. The second wall includes an air outlet and a baffle. The air outlet faces the fan along the thickness direction of the first wall. The baffle surrounds the air outlet. A sound-absorbing structure is provided between the first wall and the second wall.

[0008] In the technical solution of this application embodiment, the second wall includes an air outlet and a baffle. The airflow guided by the fan can flow out from the air outlet, and the noise can be blocked and reflected by the baffle. The reflected noise is absorbed by the sound-absorbing structure between the first and second walls, reducing the noise generated by the energy storage device and improving the operating environment of the energy storage device. At the same time, the baffle is positioned to avoid the exhaust path of the fan, while the air outlet is positioned within the exhaust path of the fan. This allows the airflow to be discharged more smoothly, improving the smoothness of airflow discharge, thereby appropriately reducing the power and operating noise of the fan and improving the heat exchange efficiency of the heat exchange components.

[0009] In some embodiments of this application, the second wall further includes at least one connecting rod, which is disposed at the air outlet and connected to the baffle; and / or, the second wall further includes a first mesh cover, which is disposed at the air outlet; and / or, the second wall further includes an air outlet grille structure, which is disposed at the air outlet. The provision of a connecting rod, a first mesh cover, and / or an air outlet grille structure at the air outlet can improve the reliability of the air outlet, reduce the possibility of foreign objects entering the fan through the air outlet, and improve the protective performance of the heat exchange components for operators. In addition, the air outlet grille structure has a good rainproof effect, which can reduce the possibility of rainwater backflow into the interior of the heat exchange components.

[0010] In some embodiments of this application, the circumferential edge of the baffle is connected to the first wall. The baffle is easy to install and has a simple structure.

[0011] In some embodiments of this application, the housing further includes a surrounding plate arranged around the fan, and the first wall is connected to the first wall through the surrounding plate. In this embodiment of the heat exchange assembly, when noise propagates outward, the surrounding plate can block and reflect some of the outwardly propagating noise, thereby reducing the noise of the heat exchange assembly.

[0012] In some embodiments of this application, the heat exchange assembly is disposed within the chamber, and the enclosure is configured as a closed structure.

[0013] In some embodiments of this application, the sound-absorbing structure is provided on the side of the enclosure facing the fan.

[0014] In some embodiments of this application, a plurality of fans are disposed on the first wall, and baffles are disposed around the plurality of fans. The baffles at the corresponding positions of each fan are integral structures, which facilitates the assembly of the baffles and the housing, resulting in high assembly efficiency. Furthermore, since each fan is surrounded by baffles, the noise reduction effect is improved.

[0015] In some embodiments of this application, the air outlet is a circular or elliptical opening.

[0016] In some embodiments of this application, the baffle is configured as a solid structure.

[0017] In some embodiments of this application, the baffle is configured as a metal plate.

[0018] In some embodiments of this application, the air outlet occupies 50% to 70% of the area of ​​the second wall.

[0019] In some embodiments of this application, the length L of the air outlet along the length direction of the second wall is 70%-90% of the length L2 of the second wall; and / or, the width W of the baffle along the width direction of the second wall is 30%-60% of the width W2 of the second wall.

[0020] In some embodiments of this application, the baffle is provided with the sound-absorbing structure on the side facing the first wall; and / or, the first wall is provided with the sound-absorbing structure on the side facing the second wall.

[0021] In some embodiments of this application, the sound-absorbing structure is configured as a porous sound-absorbing structure and / or a resonant sound-absorbing structure.

[0022] In some embodiments of this application, a gap is provided between the fan and the baffle along the arrangement direction from the first wall to the second wall. This gap allows for a distance between the fan's airflow outlet and the sound insulation panel, forming a ventilation transition section, reducing wind resistance, and improving the fan's guiding effect on airflow.

[0023] In some embodiments of this application, the heat exchange component is configured such that the wind speed at the baffle is less than the wind speed at the air outlet.

[0024] In some embodiments of this application, the fan includes a guide ring and an impeller assembly. The guide ring is mounted on the first wall. The impeller assembly includes an impeller and blades. The impeller is cylindrical and surrounds the outside of the blades, and is fixedly connected to the blades. The two ends of the guide ring along the axial direction are the air inlet and air outlet of the guide ring, respectively. The two ends of the impeller along the axial direction are the air inlet and air outlet of the impeller, respectively. Along the axial direction of the guide ring, the air outlet of the guide ring is inserted into the air inlet of the impeller, so that the guide ring communicates with the impeller. In the radial direction of the guide ring, the guide ring and the impeller are in clearance fit. The impeller assembly is configured to rotate relative to the guide ring about its own axis. The impeller is provided with a blocking part, which is configured to protrude from the outer peripheral wall of the impeller. When the fan in this embodiment is running, the impeller assembly rotates, pressing the airflow from the guide ring towards the air outlet of the impeller assembly (i.e., the air outlet of the impeller). The air outlet end of the guide ring is inserted into the air inlet end of the impeller. In this way, the stepped surface formed by the guide ring and the impeller can avoid the airflow path, improve the smoothness of airflow, and reduce the possibility of turbulence caused by the stepped surface blocking the airflow from the guide ring to the impeller, which would increase noise. At the same time, the blocking part can block the airflow flowing against the flow along the outside of the impeller, reducing the possibility of airflow (airflow from the air outlet of the impeller) flowing against the flow and re-entering the impeller through the gap at the connection between the guide ring and the impeller, which would cause the airflow inside the impeller to separate and become turbulent. This further reduces the noise of airflow, thereby reducing the overall operating noise of the fan and the energy storage device using the fan.

[0025] In some embodiments of this application, the housing is further provided with an air inlet communicating with the interior of the housing, and the air inlet is configured with a mesh structure. The mesh structure allows airflow to enter the accommodating cavity, while also reducing the possibility of larger debris entering the housing and the potential danger of an operator reaching into the accommodating cavity. The mesh structure can have hexagonal, rhomboid, or circular openings, etc.

[0026] In some embodiments of this application, the heat exchange assembly further includes a compressor, a throttling assembly, a second heat exchanger, and a refrigerant pipeline, wherein the compressor, the first heat exchanger, the throttling assembly, and the second heat exchanger are sequentially connected through the refrigerant pipeline to form a first heat exchange circuit.

[0027] In some embodiments of this application, the energy storage device further includes a second heat exchange circuit for exchanging heat with the battery device, and the first heat exchange circuit for exchanging heat with the second heat exchange circuit.

[0028] In some embodiments of this application, the heat exchange assembly is disposed inside or outside the chamber.

[0029] A second aspect of this application provides a charging system including a charging pile. The charging system also includes an energy storage device as described in this application or any embodiment thereof. The charging pile is electrically connected to the battery device of the energy storage device, and the energy storage device is used to provide electrical energy to the charging pile.

[0030] The charging system of this application has the same beneficial effects as the energy storage device proposed in this application or any embodiment of this application.

[0031] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0032] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0033] Figure 1 Here are schematic diagrams of energy storage devices proposed in some embodiments of this application;

[0034] Figure 2 This is a partial structural schematic diagram of an energy storage device proposed in some embodiments of this application;

[0035] Figure 3 This is a schematic diagram illustrating the principle of a thermal management system proposed in some embodiments of this application;

[0036] Figure 4 This is a schematic diagram of the structure of the heat exchange assembly proposed in some embodiments of this application;

[0037] Figure 5 This is a partial structural schematic diagram of a heat exchange component proposed in some embodiments of this application from one perspective.

[0038] Figure 6 This is a partial structural schematic diagram of a heat exchange component proposed in some embodiments of this application from another perspective;

[0039] Figure 7 This is a partial cross-sectional schematic diagram of a heat exchange assembly proposed in some embodiments of this application;

[0040] Figure 8 This is a schematic diagram of the structure of the heat exchange assembly proposed in some embodiments of this application;

[0041] Figure 9 This is an enlarged schematic diagram of the mesh structure proposed in some embodiments of this application;

[0042] Figure 10 This is a schematic diagram of the structure of the first mesh cover and baffle proposed in some embodiments of this application;

[0043] Figure 11 This is a schematic diagram of the structure of the first mesh cover and baffle proposed in some other embodiments of this application;

[0044] Figure 12 This is a schematic diagram of the structure of a fan proposed in some embodiments of this application;

[0045] Figure 13 A schematic diagram of the second wall proposed in some embodiments of this application;

[0046] Figure 14 This is a cross-sectional schematic diagram of a heat exchange assembly proposed in some embodiments of this application;

[0047] Figure 15 This is a schematic diagram of the structure of a fan proposed in some embodiments of this application from another perspective;

[0048] Figure 16 This is a cross-sectional schematic diagram of a fan proposed in some embodiments of this application;

[0049] Figure 17 This is an assembly cross-sectional view of the air guide ring and impeller assembly proposed in some embodiments of this application;

[0050] Figure 18 This is a schematic diagram of the impeller assembly from one perspective, based on some embodiments of this application.

[0051] Figure 19 This is a schematic diagram of the impeller assembly from another perspective, based on some embodiments of this application.

[0052] Figure 20 This is a cross-sectional schematic diagram of an impeller assembly proposed in some embodiments of this application;

[0053] Figure 21 This is a partial cross-sectional schematic diagram of an impeller assembly proposed in some embodiments of this application;

[0054] Figure 22 This is a partial cross-sectional schematic diagram of an impeller assembly proposed in some embodiments of this application;

[0055] Figure 23 This is a partial structural diagram of a fan according to some embodiments of this application.

[0056] The reference numerals in the detailed embodiments are as follows:

[0057] 10. Energy storage device; 11. Storage chamber; 12. Battery unit; 13. Bracket; 14. Thermal management system; 15. Storage space;

[0058] 100. First heat exchange circuit; 101. Heat exchange assembly;

[0059] 110. Shell; 111. First wall; 112. Air inlet; 113. Air outlet; 114. Mesh structure; 1141. Mesh; 120. First heat exchanger; 115. First part; 116. Second part; 117. Partition;

[0060] 130. Fan; 131. Impeller assembly; 1311. Shaft; 1312. Impeller; 1313. Blade; 1314. Mounting cavity; 1315. Transmission unit; 1316. Impeller inlet; 1317. Impeller outlet; 132. Guide ring; 1321. Cover; 1322. Assembly unit; 1323. First guide section; 1324. Second guide section; 1325. Inlet of the guide ring; 1326. Outlet of the guide ring; 1327. First sub-section; 1328. Second sub-section; 329. Protrusion; 133. Fixing assembly; 1330. Connecting frame; 1331. First connecting part; 1332. Second connecting part; 1333. Connecting plate; 1334. Positioning ring plate; 134. Driving component; 1341. Connecting block; 1342. Power cord assembly; 1343. Drive output end; 1344. Nut assembly; 1345. Limiting part; 135. Protective mesh cover; 1351. Assembly hole; 136. Blocking part; 1361. First stop section; 1362. Second stop section;

[0061] 140. Second wall; 1401. Baffle; 1402. Enclosure; 1403. Mounting flange; 141. Connecting rod; 142. First mesh cover; 143. First sound-absorbing structure; 144. Second sound-absorbing structure; 145. Third sound-absorbing structure; 146. Grille;

[0062] 150. Compressor; 160. Throttling assembly; 180. Second heat exchanger; 190. Refrigerant piping;

[0063] 200. Second heat exchange circuit; 210. Heat exchanger; 220. Circulation pipeline; 230. Drive assembly;

[0064] 300. Heating components;

[0065] 400, indicator lights;

[0066] E, exhaust path; F, exhaust zone; X, width direction; Y, length direction; Z, thickness direction. Detailed Implementation

[0067] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0068] 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 pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0069] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0070] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0071] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0072] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0073] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0074] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0075] A battery device, also known as a battery, can store electrical energy and power electrical devices. With the development of new energy sources, energy storage devices with battery devices are gradually being widely used due to their advantages such as large energy storage capacity. An energy storage device may include a storage enclosure (specifically, a cabinet), with the battery devices housed within it; typically, there are multiple battery devices.

[0076] Temperature has a significant impact on the performance of battery devices. Excessively low temperatures can reduce battery activity and may even prevent charging and discharging, while excessively high temperatures pose a risk of thermal runaway. Energy storage devices typically incorporate thermal management systems to regulate the temperature of the battery components within the storage unit.

[0077] In some energy storage devices, the thermal management system regulates the temperature of the battery unit through refrigerant heat exchange equipment. For example, a chiller can be used in conjunction with appropriate devices to cool the battery unit. Refrigerant heat exchange equipment generally includes a compressor, condenser, throttling device, and evaporator connected via refrigerant piping. Taking battery unit cooling as an example, the evaporator exchanges heat with the battery unit to lower its temperature. For instance, the evaporator can directly contact the battery unit for heat exchange, or it can exchange heat with the environment surrounding the battery unit, or it can exchange heat with the cooling water system connected to the battery unit, thus cooling the battery unit. The condenser exchanges heat with the air. To improve cooling efficiency, the condenser is usually equipped with airflow guiding mechanisms such as fans. These mechanisms accelerate airflow to improve the heat exchange efficiency between the condenser and the airflow (the airflow formed by the air). The airflow guiding mechanism guides the airflow, which not only needs to absorb the heat generated by the battery device and dissipate it to the outside, but also needs to dissipate the heat generated by the refrigerant heat exchange equipment itself (such as the compressor). As a result, the air volume required by the airflow guiding mechanism is large, the operating power of the airflow guiding mechanism is increased, and the noise of the airflow guiding mechanism itself and the noise generated by the airflow are relatively large.

[0078] Reducing the noise of refrigerant heat exchange equipment to create a better operating environment for energy storage devices has always been a key focus of energy storage device research and development. Research has found that noise generated by the airflow guiding mechanism and the airflow itself can propagate outwards through the air outlet of the refrigerant heat exchange equipment's casing, making noise reduction difficult.

[0079] To address the problem that noise from refrigerant heat exchange equipment propagates outward through the air outlet, making it difficult to reduce, this application provides a heat exchange assembly. The heat exchange assembly includes a shell, a first heat exchanger, an airflow guiding mechanism, and a soundproof cover. The shell has a first wall with an exhaust port (i.e., an air outlet on the first wall). The airflow guiding mechanism is located at the exhaust port. The first heat exchanger is located inside the shell. The area of ​​the soundproof cover opposite the first wall is provided with a sound-insulating component (refer to baffle). The soundproof cover can be understood as the second wall of the shell.

[0080] Noise within the heat exchange assembly (including noise generated by the airflow guiding mechanism and noise generated by the airflow passing through the first heat exchanger) propagates outward through the air outlet. Since the sound insulation component is located directly opposite the first wall, the noise can propagate to the sound insulation component and be blocked and reflected by it, consuming energy. This reduces the noise propagating to the outside and improves the noise control capability.

[0081] The heat exchange component of this application can be applied to a chiller, and the first heat exchanger can be the condenser of the chiller. A chiller using the heat exchange component of this application can reduce noise propagating outwards from the air outlet, thereby improving the overall noise level of the chiller.

[0082] This application or any embodiment of this application proposes that heat exchange components can be applied in energy storage devices to regulate the temperature of the battery devices within the energy storage device. For example, the heat exchange component can be combined with a cooling medium circulation device to form a battery thermal management system, exchanging heat with the battery devices through the cooling medium circulation device; or, for example, the heat exchange component can be used independently to directly exchange heat with the battery devices within the energy storage device, or directly with the air inside the energy storage device, to reduce the temperature inside the device. This application or any embodiment of this application proposes that the heat exchange component can also be used in electrical devices to regulate the temperature of the battery devices within the electrical devices, wherein the electrical devices can be, but are not limited to, electric vehicles, electric trains, electric bicycles, golf carts, drones, or ships. This application or any embodiment of this application proposes that the heat exchange component can also be applied to non-battery products or non-battery-related environments that require temperature regulation, for regulating the temperature of non-battery products or non-battery-related environments.

[0083] For ease of description, this application uses the application of a heat exchange component in an energy storage device as an example.

[0084] Figure 1 This is a schematic diagram of an energy storage device proposed in some embodiments of this application. Figure 2 This is a partial structural schematic diagram of an energy storage device proposed in some embodiments of this application, such as... Figure 1 and Figure 2 As shown, the energy storage device 10 in this embodiment includes a housing 11, a battery device 12 and a thermal management system 14. A bracket 13 is provided inside the housing 11, and the battery device 12 is disposed on the bracket 13.

[0085] For example, the storage unit 11 can be configured as a cabinet.

[0086] The shape of the compartment 11 can be customized as needed. An opening can be provided on one side of the compartment 11 along the horizontal direction to facilitate the assembly and maintenance of the battery device 12. The opening can be fitted with an openable door, or it can be left unattached. For example... Figure 2 As shown, the bracket 13 is connected to the compartment 11, and can be an integral structure with the compartment 11, or fixedly connected by bolts or the like. There can be multiple battery devices 12 inside the compartment 11. Multiple rows of battery devices 12 can be arranged horizontally inside the compartment 11, or a single row of battery devices 12 can be arranged. Each row of battery devices 12 can be stacked on the bracket 13 from top to bottom inside the compartment 11.

[0087] The battery device 12, also referred to as a battery, may include a housing and individual battery cells, with the individual battery cells housed within the housing. The battery device 12 may be supported on a bracket 13. Each battery device 12 may contain multiple individual battery cells, which may be connected in series, parallel, or a combination thereof. A combination thereof means that multiple battery cells are connected in both series and parallel configurations. Multiple battery cells may be directly connected in series, parallel, or a combination thereof, and then the entire assembly of the multiple battery cells is housed within the housing. Alternatively, the battery device 12 may consist of multiple battery cells first connected in series, parallel, or a combination thereof to form a battery module, and then these battery modules are connected in series, parallel, or a combination thereof to form a whole, which is then housed within the housing. The battery device 12 may also include other structures; for example, it may include a busbar component for electrical connection between multiple battery cells. Each individual battery cell may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery. The individual battery cells may be cylindrical, flat, cuboid, or other shapes.

[0088] The thermal management system 14 can be used to regulate the temperature of the battery device 12. Specifically, the thermal management system 14 can regulate the temperature of the battery device 12 by heating or cooling it. Alternatively, the thermal management system 14 can have both heating and cooling functions for the battery device 12, and can adaptively control the temperature of the battery device 12 according to its current temperature.

[0089] Figure 3 This is a schematic diagram illustrating the principle of a thermal management system proposed in some embodiments of this application, such as... Figure 3 As shown, optionally, the thermal management system 14 includes a first heat exchange circuit 100 and a second heat exchange circuit 200, the second heat exchange circuit 200 being used to exchange heat with the battery device 12, and the first heat exchange circuit 100 being used to exchange heat with the second heat exchange circuit 200.

[0090] The first heat exchange circuit 100 can be formed by a heat exchange assembly 101 (i.e., a heat exchange device), which may include a compressor 150, a first heat exchanger 120, a throttling assembly 160, and a second heat exchanger 180 connected in series via a refrigerant pipeline 190. The second heat exchange circuit 200 can be a cooling medium circulation device.

[0091] The storage chamber 11 has a receiving space 15 on one side of the bracket 13. The heat exchange component 101 can be installed in the receiving space 15. Optionally, the heat exchange component 101 can also be installed outside the storage chamber 11 of the energy storage device 10. Figures 4 to 6 As shown, Figure 4 This is a schematic diagram of the structure of the heat exchange assembly proposed in some embodiments of this application. Figure 5This is a partial structural schematic diagram of a heat exchange component proposed in some embodiments of this application. Figure 6 This is a partial structural schematic diagram from another perspective of the heat exchange assembly proposed in some embodiments of this application. The heat exchange assembly 101 may further include a housing 110. The compressor 150, the first heat exchanger 120, the throttling assembly 160, the second heat exchanger 180, and the airflow guiding mechanism can all be disposed within the housing 110. Alternatively, some components of the heat exchange assembly 101 can be disposed within the housing 110, and some components can be disposed outside the housing 110. Optionally, when the heat exchange assembly 101 is installed outside the chamber 11, components related to heat exchange with the external environment, such as the first heat exchanger 120 and the fan 130, can be disposed within the housing 110; alternatively, the compressor 150 can be disposed within the housing 110 outside the chamber 11; or all components of the heat exchange assembly 101 can be disposed within the housing 110 outside the chamber 11. Optionally, in some embodiments, such as Figure 4 As shown, the housing 110 includes a first part 115 and a second part 116 connected to each other. An airflow guiding mechanism (i.e., a fan 130) and a first heat exchanger 120 can be disposed within the first part 115; a compressor 150 can be disposed within the second part 116; and a second heat exchanger 180 and a throttling assembly 160 can be disposed within either the first part 115 or the second part 116. For example, a partition 117 is provided at the middle of the housing 110 in the height direction, dividing the housing 110 into the first part 115 and the second part 116, with the first part 115 located above the second part 116.

[0092] The housing 110 is provided with an air inlet and an air outlet. The air inlet allows air to flow into the housing 110, and the air outlet allows air to flow out of the housing 110. When the housing 110 is located within the accommodating space 15, the chamber 11 is provided with a connecting opening that communicates with the accommodating space 15, so that the air inlet and outlet of the housing 110 can communicate with the outside of the chamber 11 through the connecting opening. A mesh structure may be provided at the connecting opening.

[0093] The first heat exchanger 120 can be used for heat exchange with air, that is, 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 it is necessary to heat the battery device 12 to increase its temperature, the first heat exchanger 120 is used as an evaporator and the second heat exchanger 180 is used as a condenser; when it is necessary to cool the battery device 12 to decrease its temperature, the first heat exchanger 120 is used as a condenser and the second heat exchanger 180 is used as an evaporator. The heat exchange assembly 101 can also be equipped with a corresponding valve control assembly to allow the first heat exchanger 120 and the second heat exchanger 180 to switch between different operating conditions.

[0094] The compressor 150 is a driven fluid machine that raises low-pressure gas to high-pressure gas. It draws in low-temperature, low-pressure refrigerant through its refrigerant inlet, compresses it using a piston driven by a motor, and then discharges high-temperature, high-pressure refrigerant through its refrigerant outlet, providing power for the refrigerant cycle. Refrigerant, also known as coolant or refrigerant fluid, is the medium through which energy conversion is accomplished in various heat engines.

[0095] The first heat exchanger 120 is equipped with a refrigerant passage for refrigerant flow. As the refrigerant flows through the first heat exchanger 120, it exchanges heat with the outside air within the first heat exchanger 120. For example... Figure 3 As shown, to improve the heat exchange efficiency between the first heat exchanger 120 and the air, the heat exchange assembly 101 can also be equipped with a fan 130. The fan 130 can be used to guide the airflow through the first heat exchanger 120. The fan 130 can be any type of fan, specifically an axial flow fan, a mixed flow fan, etc. Among them, the mixed flow fan, also known as a mixed-flow fan, is a fan between an axial flow fan and a centrifugal fan. The impeller of the mixed flow fan causes the air to undergo both centrifugal and axial motion, and the air movement combines the two forms of axial and centrifugal motion.

[0096] The second heat exchanger 180 is provided with a refrigerant channel for refrigerant flow. When the refrigerant flows through the second heat exchanger 180, it exchanges heat with the cooling medium within the second heat exchanger 180. A first medium container can be correspondingly provided at the location of the second heat exchanger 180. The first medium container is connected to 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 container. Optionally, in some implementations, the second heat exchanger 180 is provided with a medium channel, which can serve as the first medium container. The inlet and outlet of the medium channel are connected to the outlet and inlet of the second heat exchange circuit 200, respectively, to form a cooling medium circulation loop. The medium channel and the refrigerant channel are independent of each other, and the cooling medium in the medium channel exchanges heat with the refrigerant to achieve heat exchange between the second heat exchanger 180 and the cooling medium. Alternatively, in other implementations, the first medium container can be a liquid storage tank, a liquid storage vessel, a connecting pipe, etc., and the second heat exchanger 180 can be disposed within the first medium container, where the refrigerant in the second heat exchanger 180 exchanges heat with the cooling medium in the first medium container. The first heat exchanger 120 and the second heat exchanger 180 can be plate heat exchangers, finned heat exchangers, etc., respectively.

[0097] The second heat exchange circuit 200 includes a circulation pipe 220 and a heat exchange element 210. The heat exchange element 210 is a component capable of conducting heat, specifically a water-cooled plate. The cooling medium exchanges heat with the battery device 12 through the heat exchange element 210. The heat exchange element 210 can be disposed on the outside of the battery device 12 and can be disposed in close contact with the battery device 12 to facilitate heat exchange between the battery device 12 and the heat exchange element 210. The heat exchange element 210 can also be disposed inside the battery device 12, for example, between adjacent battery cells within the battery device 12. The heat exchange element 210 can also be part of the housing constituting the battery device 12, i.e., a part of the housing serves as the heat exchange element 210.

[0098] The heat exchanger 210 has a medium channel. The inlet and outlet of the medium channel are connected to a circulation pipe 220. A drive assembly 230 can be installed on the circulation pipe 220. The drive assembly 230 is used to drive the cooling medium from the first medium container corresponding to the second heat exchanger 180 to the heat exchanger 210, and then back to the first medium container corresponding to the second heat exchanger 180 after passing through the heat exchanger 210. The cooling medium can be a liquid, such as water, or a gas or other fluid substance.

[0099] The throttling component 160 is used to throttle the refrigerant, causing changes in pressure, etc., and can play the roles of throttling and pressure reduction and flow regulation. Specifically, the throttling component 160 can be an expansion valve.

[0100] Reference Figure 3As shown, in some embodiments, the first heat exchanger 120 of the heat exchange assembly 101 is used as a condenser and the second heat exchanger 180 is used as an evaporator. That is, the compressor 150, the first heat exchanger 120, the throttling assembly 160 and the second heat exchanger 180 arranged in series in the refrigerant pipeline 190 form a refrigerant circuit (this embodiment mainly uses the refrigerant circuit as a cooling circuit as an example for explanation). This refrigerant return can be used for refrigeration, for example, it can be used as part of a chiller. The general working principle of the heat exchange component 101 for refrigeration 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 component 210 outside the battery, which absorbs the heat generated by the battery device 12, and the temperature of the cooling medium rises. It then enters the second heat exchanger 180, where the refrigerant evaporates and absorbs heat, thus absorbing the temperature of the cooling medium. The refrigerant after evaporation and absorption is driven back to the compressor 150 in the refrigerant circuit for compression, forming a high temperature and high pressure state. It then passes through the condenser (first heat exchanger 120) for condensation and heat dissipation, forming a medium temperature and high pressure state. The condenser (first heat exchanger 120) dissipates the generated heat to the environment through the fan (fan 130). The medium temperature and high pressure state refrigerant passes through the expansion valve (throttling component 160) to form a low temperature and low pressure two-phase refrigerant, which then returns to the second heat exchanger 180 to form a cycle.

[0101] Continue to refer to Figure 3 As shown, the heat exchange assembly 101 may also be equipped with a heating assembly 300, which can heat the cooling medium. The circulation pipeline 220 is connected to the heating assembly 300, and the heating assembly 300 can be activated when heating of the battery device 12 is required. The heating assembly 300 may include an electric heating element and a second medium container. The second medium container may be a pipe, tank, box, etc., which can be connected in the circulation pipeline 220. The electric heating element is disposed in the second medium container and is used to heat the cooling medium of the second medium container. Specifically, the electric heating element may be a PTC heating element, also called a PTC heater, short for Positive Temperature Coefficient Heater. It is an electric heater that uses a positive temperature coefficient (PTC) material. It can be composed of a PTC ceramic heating element and an aluminum tube. This type of PTC heating element has the advantages of low thermal resistance and high heat exchange efficiency, and is an automatic constant temperature and energy-saving electric heater.

[0102] It should be noted that the scheme in which the heat exchange assembly 101 is equipped with the heating assembly 300 can be used in conjunction with the scheme in which the refrigerant circuit of the heat exchange assembly 101 is used for refrigeration. The second medium container of the heating assembly 300 is connected in parallel with the first medium container corresponding to the second heat exchanger 180 in the circulation pipeline 220. In some implementations, when the heat exchange assembly 101 is in use, either the second medium container of the heating assembly 300, the second heat exchanger 180, or the second heat exchange circuit 200 can be selectively connected to the circulation pipeline 220. This can be achieved by installing a valve control assembly (such as a proportional valve or solenoid valve) on the circulation pipeline 220. That is, when it is necessary to heat the battery device 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 activated. The circulation pipeline 220 is connected to the first medium container corresponding to the second heat exchanger 180, the heating assembly 300 is shut off, and the circulation pipeline 220 is disconnected from the first medium container of the heating assembly 300. The second heat exchange circuit 200 then transfers the refrigerant exchanged by the second heat exchanger 180 to the second medium container. The cooling medium is delivered to the heat exchanger 210 corresponding to the battery device 12 to cool the battery device 12. After passing through the heat exchanger 210, the cooling medium is delivered back to the second heat exchanger 180. When it is necessary to cool the battery device 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling component 160, and the second heat exchanger 180 stops operating. The circulation pipeline 220 is disconnected from the first medium container corresponding to the second heat exchanger 180. The heating component 300 is turned on, and the circulation pipeline 220 is connected to the second medium container of the heating component 300. The second heat exchange circuit 200 delivers the cooling medium heated by the heating component 300 to the heat exchanger 210 corresponding to the battery device 12 to heat the battery device 12. After passing through the heat exchanger 210, the cooling medium is delivered back to the heating component 300. In some other implementations, when the heat exchange assembly 101 is in use, both the second medium container of the heating assembly 300 and the second heat exchanger 180 and the second heat exchange circuit 200 can be connected to the circulation pipeline 220. When it is necessary to heat up the battery device 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, and the heating assembly 300 is turned off. When it is necessary to cool down the battery device 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling assembly 160 and the second heat exchanger 180 stops running, and the heating assembly 300 is turned on.

[0103] It should also be noted that the thermal management system 14 in this embodiment may further include temperature sensors, for example, a temperature sensor may be installed on the battery device 12 to detect the temperature of the battery device 12; a temperature sensor may be installed inside the compartment 11 where the battery device 12 is located to detect the temperature inside the compartment 11; a temperature sensor may be installed outside the compartment 11 to detect the temperature of the external environment. The second heat exchange loop may be equipped with a temperature sensor and a pressure sensor to detect the temperature and flow pressure of the refrigerant, and the second heat exchange reflux may also be equipped 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 adaptively control the heat exchange component 101 based on the detected temperatures of these temperature sensors to regulate the temperature of the battery device 12. Specifically, the operation control of the heat exchange component 101 can be executed by the controller of the energy storage device 10, or a separate controller can be installed in the thermal management system 14, and this independent controller can control the operation of the heat exchange component 101.

[0104] It should also be noted that in some other embodiments, the first heat exchanger of the heat exchange component of the thermal management system may also be in direct contact with the battery device and exchange heat with the battery device.

[0105] like Figures 4 to 8 As shown, Figure 7 This is a partial cross-sectional schematic diagram of a heat exchange assembly proposed in some embodiments of this application. Figure 8 This is a schematic diagram of the structure of a heat exchange assembly proposed in some embodiments of this application. Embodiments of this application propose a heat exchange assembly including a housing 110, a first heat exchanger 120, and an airflow guiding mechanism. The housing 110 has a receiving cavity, a first wall 111, and a second wall 140. The first wall 111 surrounds the receiving cavity and has an exhaust port 113 communicating with the receiving cavity. The first heat exchanger 120 is disposed in the receiving cavity for heat exchange with external airflow. A fan 130 is disposed at the exhaust port 113 for guiding airflow through the first heat exchanger 120. The second wall 140 is configured to connect to the first wall 111 and surround the exhaust port 113 and the fan 130. An exhaust zone F is provided on the second wall 140, and the second wall 140 includes a sound insulation component disposed in the area of ​​the second wall 140 directly opposite the first wall 111 to reduce the operating noise of the heat exchange assembly 101.

[0106] The exhaust vent 113 of the first wall 111 is also the air outlet of the first wall 111.

[0107] The second wall 140 is disposed opposite to the first wall 111. The second wall 140 serves as a soundproof enclosure and may have an air outlet and a baffle. The air outlet is formed in the exhaust zone F of the second wall 140, meaning the air outlet on the second wall is located within the exhaust zone F. It should be noted that, except for specifically defined air outlets, any air outlets not specifically located in this document generally refer to air outlets on the second wall.

[0108] The housing 110 is a hollow component, and its shape can be manufactured as needed. Optionally, the housing 110 can be approximately a cuboid structure. The exhaust vent 113 connects the outside to the interior of the housing 110, allowing air (airflow) to flow from the interior of the housing 110 to the outside. The outside refers to the outer side of the housing 110. The exhaust vent 113 can be located on any wall surface of the housing 110, such as the top wall, side wall, or bottom wall. The housing 110 may also have an air inlet 112, which connects the outside to the interior of the housing 110, allowing air to flow from the outside to the interior of the housing 110. The air inlet 112 and the air outlet 113 can be located on different walls of the housing 110 to reduce the mutual influence between the air inlet and outlet and improve the heat exchange effect of the heat exchange components. Alternatively, the air inlet 112 and the air outlet 113 can be located on the same side wall of the housing 110. In this case, the air inlet 112 and the air outlet 113 can be spaced apart to reduce the mutual influence between the air inlet and outlet. One or more air outlets 113 and one or more air inlets 112 can be provided on the housing 110.

[0109] The first wall 111 is the wall of the housing 110 where the exhaust port 113 is located. The first wall 111 can be part of the outer wall of the housing 110. The exhaust port 113 can be located on any wall of the housing 110, such as the top wall, side wall, or bottom wall of the housing 110. The air inlet 112 and the exhaust port 113 can be located on different walls of the housing 110 to reduce the mutual influence between the air inlet and outlet and improve the heat exchange effect of the heat exchange components. The exhaust port 113 can also be located on the same side wall of the housing 110 as the air inlet 112. In this case, the air inlet 112 and the exhaust port 113 can be arranged alternately to reduce the mutual influence between the air inlet and outlet. One or more exhaust ports 113 and one or more air inlets 112 can be provided on the housing 110.

[0110] In one implementation, such as Figure 5 , Figure 7 and Figure 8As shown, the housing 110 is generally rectangular in shape. One side wall of the housing 110 has an exhaust port 113. Multiple air inlets 112 are located on the adjacent side wall of the side wall with the exhaust port 113. An air inlet 112 is also located at the lower end of the side wall with the air inlets 112, and an air inlet 112 is also located on the top wall of the housing 110. The air inlets 112 can be configured with a mesh structure 114, such as... Figure 9 As shown, Figure 9 This is an enlarged schematic diagram of the mesh structure 114 proposed in some embodiments of this application. The mesh openings 1141 of the mesh structure 114 allow air to flow into the housing 110, while simultaneously reducing the possibility of larger debris entering the housing 110 and minimizing the risk of an operator reaching into the housing 110 and causing danger. The mesh openings 1141 of the mesh structure 114 can be hexagonal, rhomboid, circular, etc.

[0111] It should be noted that, Figure 5 , Figure 6 and Figure 8 The blurred black areas are all mesh structures 114. Mesh structures 114 appear black due to the display ratio. For details on the structure of mesh structures 114, please refer to [link / reference needed]. Figure 9 To understand the mesh structure 114, see the magnified view. The mesh structure 114 in each of the black blurred areas can be compared with... Figure 9 The mesh structure shown is the same as 114.

[0112] The axial direction of the exhaust vent 113 is the same as the direction of its axis, which can be understood by referring to the extension direction of the center line of the exhaust vent 113. Optionally, the axial direction of the exhaust vent 113 is approximately perpendicular to the first wall 111 where the exhaust vent 113 is located.

[0113] The first heat exchanger 120 can be a refrigerant heat exchanger, and a refrigerant channel can be provided inside it. The airflow can be an airflow formed by air, and the external airflow refers to the airflow formed outside the first heat exchanger 120. The external airflow (i.e., air) can flow across the outer surface of the first heat exchanger 120 and can exchange heat with the refrigerant inside the first heat exchanger 120. The first heat exchanger 120 can be a parallel flow heat exchanger, a plate heat exchanger, a finned heat exchanger, a microchannel heat exchanger, etc. The first heat exchanger 120 can be housed inside the shell 110 and can be fixedly connected to the shell 110 by a bracket or the like. The first heat exchanger 120 is located between the air inlet 112 and the air outlet 113. It can be understood that the first heat exchanger 120 is located on the airflow path between the air inlet 112 and the air outlet 113, that is, the airflow formed by the fan 130 can flow through the first heat exchanger 120.

[0114] The airflow guiding mechanism can be a fan, and the fan 130 can be a blower, axial flow fan, mixed flow fan, etc. The fan 130 can be installed at the air inlet 112. The fan 130 can be mounted and fixed on the housing 110. The fan 130 can be located inside the housing 110, or at least partially exposed outside the housing 110. Specifically, the fan 130 can be located at the position corresponding to the air inlet 112, for example, passing through the air inlet 112, or located on the inner or outer side of the air inlet 112. When the fan 130 passes through the air inlet 112 or the air outlet 113, the fan 130 can be partially exposed on the outer side of the housing 110.

[0115] The second wall 140 can be located outside the first wall 111, that is, the second wall 140 is located on the side of the first wall 111 away from the receiving cavity. The second wall 140 can surround the fan 130 and the exhaust port 113 around its perimeter, specifically in a ring shape, and its shape can be roughly rectangular, or roughly circular, elliptical, or other shapes. The second wall 140 can be fixedly connected to the first wall 111 by welding, bolting, or other methods.

[0116] The sound insulation component can be configured as a baffle 1401, which can be positioned directly opposite the second wall 140 and the first wall 111. The surface of the baffle 1401 (i.e., the surface with the largest area of ​​the baffle 1401) can be arranged approximately perpendicular to the axial direction of the exhaust port 113, that is, approximately parallel to the first wall 111 where the exhaust port 113 is located. The baffle 1401 serves to block the outward transmission of sound and can also reflect sound. The main body of the baffle 1401 includes a generally sealed (sealed) or completely sealed plate or sheet, etc., that is, the main body of the baffle 1401 basically has no through holes. Optionally, the baffle 1401 can be configured as a non-perforated plate. Since the baffle 1401 has basically or completely no through holes, it can play a sound insulation role. Optionally, the baffle 1401 can be a solid structure or a hollow plate structure with a hollow interior and a sealed surface. For example, the baffle 1401 can be a surface-sealed metal sealing plate. The baffle 1401 can be connected and fixed to the housing 110. Optionally, as shown... Figure 5 and Figure 8 As shown, an indicator light 400 can be installed on the baffle 1401. The indicator light 400 is used to indicate the operating status of the heat exchange component, so that personnel can understand the operating status of the heat exchange component from the outside.

[0117] The second wall 140 has an exhaust zone F located outside the baffle 1401. The exhaust zone F has an air outlet that connects to the exhaust port 113 and the outside. Airflow exiting the exhaust port 113 can be discharged to the outside through the exhaust zone F (i.e., the air outlet on the second wall 140). Optionally, in some implementations, along an axial direction perpendicular to the exhaust port 113 (which can be understood with reference to the surface of the first wall 111 or the baffle 1401), at least one side of the baffle 1401 can be the exhaust zone F (i.e., the air outlet on the second wall 140), for example, as... Figure 5 and Figure 8 As shown, and in combination Figure 10 and Figure 11 As shown, Figure 10 This is a schematic diagram of the structure of the first mesh cover and baffle proposed in some embodiments of this application. Figure 11 The diagram below shows the structure of the first mesh cover and baffle according to other embodiments of this application. The exhaust zone F (which can be understood with reference to the position of the first mesh cover 142) can be arranged around the baffle 1401, that is, the exhaust zone F is arranged around the periphery of the baffle 1401. Optionally, in other implementations, the baffle 1401 can also be arranged around the exhaust zone F.

[0118] It should be noted that, unless otherwise specified, the air outlet on the second wall 140 in this article can be understood by referring to the location of the exhaust zone F.

[0119] In this embodiment, the noise generated during the operation of the heat exchange component (including the noise generated by the operation of the fan 130 and the noise generated by the airflow passing through the first heat exchanger 120) can be blocked and reflected by the baffle 1401 when it propagates outward from the exhaust port 113. The noise is attenuated by the blocking and reflection of the baffle 1401, thereby reducing the noise propagating outward from the heat exchange component and improving the operating environment of the heat exchange component.

[0120] It should be noted that, Figure 6 The first heat exchanger 120 is only shown in part at the top and bottom; in fact, the first heat exchanger 120 is an integral structure from top to bottom.

[0121] According to some embodiments of this application, optionally, such as Figure 5 , Figure 7 , Figure 8 , Figure 10 and Figure 11 As shown, the baffle 1401 is positioned to avoid at least part of the exhaust path E, which is the path through which airflow flows outward via the exhaust port 113.

[0122] Exhaust path E can be understood as the flow path of air after passing through exhaust port 113, in the absence of other obstacles. In other words, it is the outward exhaust airflow path formed by the airflow guided by exhaust port 113 or the components at exhaust port 113. In this embodiment, the fan 130 is located at exhaust port 113, and the path through which the fan 130 drives the airflow outward can be considered exhaust path E.

[0123] The baffle 1401 is positioned to avoid part of the exhaust path E. This can be understood as at least part of the exhaust path E not passing through the baffle 1401. In other words, at least part of the exhaust path E passes through the exhaust area F, and at least part of the airflow can flow directly outward through the exhaust area F after exiting the exhaust port 113. Specifically, the baffle 1401 can avoid all of the exhaust path E, or it can prevent only a portion of the exhaust path E from passing through.

[0124] It should be noted that if part of the exhaust path E passes through the baffle 1401, the airflow flowing toward the baffle 1401 can be redirected to the exhaust area F (i.e. the air outlet on the second wall 140) after being blocked by the baffle 1401, so as to flow outward. Figure 7 The other arrows indicate the direction of airflow.

[0125] In this embodiment, the heat exchange component avoids at least part of the exhaust path E by setting the baffle 1401. In this way, at least part of the airflow discharged through the exhaust port 113 can be discharged more smoothly, which improves the smoothness of airflow discharge. This can appropriately reduce the power and operating noise of the fan 130 and improve the heat exchange efficiency of the heat exchange component.

[0126] In some embodiments of this application, the heat exchange assembly 101 includes a housing 110, a first heat exchanger 120, and a fan 130. The first heat exchanger 120 is disposed within the housing 110 and is used to exchange heat with the battery device 12. The fan 130 is disposed within the housing 110 and is used to exchange heat with the first heat exchanger 120. The housing 110 includes a first wall 111 and a second wall 140 disposed opposite to each other. The fan 130 is disposed on the first wall 111. The second wall 140 includes an exhaust port and a baffle 1401. A sound-absorbing structure is disposed between the first wall 111 and the second wall 140.

[0127] In one implementation, the baffle 1401 is disposed in the middle region of the second wall 140. The air outlet can be disposed on the outer circumferential side of the baffle 1401. The middle region of the second wall 140 refers to the inner region located at the circumferential edge of the second wall 140. Specifically, the middle region of the second wall 140 is the geometric center of the second wall 140 (which can be understood as the location through which the central axis of the second wall 140 passes, and this central axis is perpendicular to the wall surface of the second wall 140) and the surrounding region around this geometric center. The baffle 1401 being disposed in the middle region of the second wall 140 means that the edge of the baffle 1401 in any direction is located inside the circumferential edge of the second wall 140. The baffle 1401 can be located in a local area of ​​all the middle regions of the second wall 140, and any position of the baffle 1401 is disposed on the inner side of the circumferential edge region of the second wall 140 (including the baffle 1401 and the air outlet).

[0128] For example, in one implementation, the baffle 1401 is configured as a solid structure. Here, solid structure refers to a structure with a sealed or substantially sealed plate surface. The plate surface of the baffle 1401 refers to the surface of the baffle facing or away from the first wall. That is, the surface of the baffle 1401 facing or away from the first wall 111 can be configured as a sealed solid structure. The surfaces of the baffle 1401 facing and away from the first wall 111 are usually the two largest surfaces of the baffle 1401 that are set opposite to each other.

[0129] It should be noted that, in this embodiment, the definition of a solid structure for the board surface can be that the main body of the board surface is a sealed or airtight structure. For example, if the solid area (the solid area refers to the area of ​​the solid board surface without through holes) accounts for 85% or more of the total board surface area, it can be considered a solid board surface. In other words, if the area of ​​the board surface with through holes accounts for less than 15% of the total board surface area, it can be considered a solid structure.

[0130] For example, in one implementation, the baffle 1401 occupies 30% to 50% of the area of ​​the second wall 140, specifically 30%, 35%, 40%, 45%, 50%, etc. The area of ​​the second wall 140 only considers the area of ​​the planar region of the second wall 140 parallel to the first wall 111, including the planar area of ​​the area where the air outlet is located and the planar area of ​​the area where the baffle 1401 is located. It should be noted that the baffle 1401 occupying 30% to 50% of the area of ​​the second wall 140 can be applied when the fan 130 is configured as a mixed-flow fan, that is, when the baffle 1401 is located in the middle area of ​​the second wall 140.

[0131] For example, such as Figure 4 , Figure 7 , Figure 9 and Figure 10As shown, baffle 1401 is disposed in the middle region of the second wall 140, and along the length direction Y of the second wall 140, the length dimension L1 of baffle 1401 is 70%-90% of the length dimension L2 of the second wall 140, and / or, along the width direction X of the second wall 140, the width dimension W1 of baffle 1401 is 30%-60% of the width dimension W2 of the second wall 140. In this design, the length L2 of the second wall 140 is greater than its width W2, and the length L1 of the baffle 1401 is greater than its width W1. The length L1 of the baffle 1401 and the length L2 of the second wall 140 are in the same direction (both defined as the length direction Y). The width W1 of the baffle 1401 and the width W2 of the second wall 140 are in the same direction (both defined as the width direction X). The length direction Y and the width direction X corresponding to the length dimensions are approximately perpendicular, and the length direction Y and the width direction X are perpendicular to the thickness direction Z of the baffle 1401. The length L2 of the second wall 140 along the length direction Y is generally not less than the width W2 of the second wall 140 along the width direction X; that is, the direction with the larger dimension of the second wall 140 is the length direction, and the direction with the smaller dimension is the width direction. In some embodiments, a plurality of fans 130 are provided on the first wall 111, and the plurality of fans 130 can be arranged at intervals along the length direction Y of the second wall 140.

[0132] The length dimension L2 of the second wall 140 can be understood as the total dimension occupied by the air outlet and the baffle 1401 along the length direction Y, and the width dimension W2 of the second wall 140 can be understood as the total dimension occupied by the air outlet and the baffle 1401 along the width direction X. The length dimension L2 of the second wall 140 can be taken as the maximum dimension along the length direction Y, and the width dimension W2 of the second wall 140 can be taken as the maximum dimension along the width direction X.

[0133] It should be noted that the second wall 140 refers to the portion of the first part 115 that cooperates with the first wall 111 and the surrounding panel 1402 to form a receiving cavity. In other words, the second wall 140 is the wall directly enclosing the fan 130. (Reference) Figure 4 As shown, the second wall 140 is located above the partition 117, and the wall of the second part 116, which faces the same direction as the second wall 140, is located below the second wall 140 and the partition 117. The partition 117 is one of the sides of the enclosure 1402.

[0134] It should also be noted that the circumferential edge of the baffle 1401 may be provided with a mounting flange 1403, which is used to fix it to the first wall 111. For example, the mounting flange 1403 can be attached to the enclosure 1402 and connected to the enclosure 1402 by fasteners. By connecting the mounting flange 1403 to the enclosure 1402, the relative fixation between the baffle 1401 and the first wall 111 is achieved. Since the mounting flange 1403 is usually used as a connecting structure and does not serve as a barrier directly enclosing the fan 130, the dimensions of the second wall 140 usually do not include the dimensions of the mounting flange 1403. That is to say, the length dimension L2 or the width dimension W2 of the second wall 140 refers to the dimension of the area of ​​the second wall 140 enclosing the fan 130 along the corresponding direction.

[0135] When the baffle 1401 is located in the middle area of ​​the second wall 140, such as Figure 10 and Figure 11 As shown, the length dimension L1 of the baffle 1401 can be selected as its maximum dimension in the length direction Y, and the width dimension W1 of the baffle 1401 can be selected as its maximum dimension in the width direction X. In either the length direction Y or the width direction X, any position of the circumferential edge of the baffle 1401 is located inside the circumferential edge of the air outlet of the second wall 140. When multiple baffles 1401 are spaced apart in a certain direction (length direction Y or width direction X), the dimension of the baffle 1401 in that direction is equal to the sum of the dimensions of all the baffles 1401 along that direction. For example, as... Figure 10 As shown, when multiple baffles 1401 are arranged at intervals along the length direction Y, the length dimension L1 of the baffle 1401 is equal to the sum of the dimensions of all the baffles 1401 along the length direction. Specifically, in this embodiment, two baffles 1401 are provided, and the length dimension L1 of the baffle 1401 is equal to the sum of the dimensions L3 and L4 of the two baffles 1401 along the length direction Y.

[0136] When the baffle 1401 is located in the middle area of ​​the second wall 140 and the fan 130 is set as a diagonal flow fan, the area and size of the baffle 1401 are limited in proportion, which can achieve a good noise reduction effect while maintaining a good airflow velocity.

[0137] In other embodiments, such as Figure 13 As shown, the baffle 1401 surrounds the air outlet, and the fan 130 is set as an axial flow fan. The fan 130 is set directly opposite the air outlet. At this time, the air outlet occupies 50% to 70% of the area of ​​the second wall 140, and the baffle 1401 can occupy 30% to 50% of the area of ​​the second wall 140.

[0138] For example, continue to refer to Figure 13As shown, baffle 1401 surrounds the air outlet, fan 130 is set as an axial flow fan, fan 130 is set directly opposite the air outlet, along the length Y of the second wall 140, the length dimension L of the air outlet (refer to the exhaust area F) is 70%-90% of the length dimension L2 of the second wall 140, and / or, along the width X of the second wall 140, the width dimension W of the air outlet (refer to the exhaust area F) is 30%-60% of the width dimension W2 of the second wall 140.

[0139] The above-mentioned limitation on the area and size of the air outlet, where the baffle 1401 surrounds the air outlet and the fan 130 is set as an axial flow fan, can achieve a good noise reduction effect while maintaining a good airflow velocity.

[0140] The first heat exchanger 120 can directly exchange heat with the battery device 12 through the first heat exchange circuit 100, wherein the second heat exchanger 180 in the first heat exchange circuit 100 can be in contact with the battery device. Alternatively, the first heat exchanger 120 can exchange heat with the second heat exchange circuit 200 through the first heat exchange circuit 100, and the second heat exchange circuit 200 can exchange heat with the battery device 12, thus achieving heat exchange between the first heat exchanger 120 and the battery device 12. It should be noted that in some other embodiments, the first heat exchanger 120 can also directly exchange heat with the battery device 12, for example, by exchanging heat between the first heat exchanger 120 and the battery device 12 or the space containing the battery device 12.

[0141] The fan 130 exchanges heat with the first heat exchanger 120, which means that the fan 130 can drive the airflow through the first heat exchanger 120, so that the first heat exchanger 120 exchanges heat with the airflow.

[0142] Sound-absorbing structures refer to structures that can absorb noise and thus reduce noise. They can be porous sound-absorbing structures, such as sound-absorbing cotton and sound-absorbing panels, or resonant sound-absorbing structures.

[0143] The sound-absorbing structure can be disposed on the propagation path of the noise reflected by the baffle 1401 in order to absorb the emitted noise. For example, the side of the baffle 1401 facing the first wall 111 can be provided with a sound-absorbing structure, and the side of the first wall 111 facing the second wall 140 can be provided with a sound-absorbing structure; when a surrounding plate 1402 is disposed between the first wall 111 and the second wall 140, the surrounding plate 1402 can be provided with a sound-absorbing structure.

[0144] In this embodiment of the energy storage device, the baffle 1401 is located in the middle area where there is a lot of noise. The noise can be blocked and reflected by the baffle 1401. The reflected noise is absorbed by the sound-absorbing structure between the first wall 111 and the second wall 140, which reduces the noise generated by the heat exchange component 101 and improves the operating environment of the heat exchange component 101.

[0145] According to some embodiments of this application, optionally, the airflow guiding mechanism (i.e., the fan 130) is configured such that the wind speed in the area corresponding to the baffle 1401 is less than the wind speed at the air outlet (i.e., the exhaust zone F).

[0146] In other words, the wind speed of the heat exchange component 101 at the baffle 1401 is less than the wind speed of the heat exchange component 101 at the air outlet. The airflow formed by the airflow guiding mechanism (i.e., the fan 130) mainly flows towards the exhaust area F (i.e., the air outlet).

[0147] The location of baffle 1401 can be understood as the location of baffle 1401, and the location of air outlet can be understood as the location of air outlet (i.e., emission zone F).

[0148] When comparing the wind speed in the area corresponding to the baffle 1401 and the wind speed at the air outlet, either the average wind speed of each area or the maximum wind speed of each area can be used.

[0149] By placing the baffle 1401 in an area with lower wind speed, the obstruction effect of the baffle 1401 on airflow can be reduced, the smoothness of airflow can be improved, and the heat exchange efficiency can be increased.

[0150] According to some embodiments of this application, optionally, when the fan 130 is discharging air at an oblique flow, the sound insulation component (i.e., baffle 1401) is disposed in the area of ​​the second wall 140 directly opposite the fan 130; that is, the baffle 1401 and the fan 130 are disposed directly opposite each other in the thickness direction Z of the first wall 111, wherein the thickness direction Z of the first wall 111 can be understood as the arrangement direction of the fan 130 and the baffle 1401, and can also be understood with reference to the arrangement direction of the first wall 111 and the second wall 140. When the fan 130 is discharging air at an axial flow, the sound insulation component (i.e., baffle 1401) is disposed in the area of ​​the second wall 140 surrounding the airflow guiding mechanism (understood with reference to the fan 130) and directly opposite the first wall 111.

[0151] Optionally, in some embodiments, the fan 130 is disposed at the exhaust port 113, the exhaust path E of the baffle 1401 is the path through which the airflow driven by the fan 130 flows outward, the inlet of the fan 130 faces the inside of the housing 110, and the outlet of the fan 130 faces the outside of the housing 110.

[0152] Different types of fans 130 result in different exhaust paths E. For example, fan 130 can be a diagonal-flow fan, located at exhaust outlet 113. The exhaust path E formed by the diagonal-flow fan is angled to the axis of exhaust outlet 113 (i.e., the axis of the diagonal-flow fan), meaning the airflow is obliquely discharged under the action of the diagonal-flow fan. As another example, fan 130 can be an axial-flow fan, located at exhaust outlet 113. The exhaust path E formed by the axial-flow fan extends along the axis of exhaust outlet 113 (i.e., the axis of the axial-flow fan), meaning the airflow flows outward along the axis of exhaust outlet 113 under the action of the axial-flow fan.

[0153] In some implementations, the exhaust path E is inclined outward relative to the axial direction of the exhaust port 113. That is, when the fan 130 is discharging air at an oblique angle, at least a portion of the baffle 1401 is positioned directly opposite the exhaust port 113 along the axial direction of the exhaust port 113. The outer side of the circumferential edge of the baffle 1401 forms an exhaust zone F, and the exhaust path E passes through at least part of the exhaust zone F. For ease of description, the projection of the baffle 1401 onto the exhaust port 113 along the axial direction of the exhaust port 113 is defined as the first projection. The outward inclination of the exhaust path E relative to the axial direction of the exhaust port 113 can be understood as follows: after the airflow exits from the exhaust port 113 or the fan 130 positioned at the exhaust port 113, the airflow flows obliquely in the radial direction of the exhaust port 113 in a direction away from the axis of the exhaust port 113. In other words, the exhaust path E is inclined both radially and axially relative to the exhaust port 113, and the airflow diffuses outward. Optionally, in this embodiment, the fan 130 can be a diagonal flow fan, which is disposed at the exhaust port 113 to form an inclined exhaust path E. It should be noted that at least a portion of the baffle 1401 is directly opposite the exhaust port 113. This can be understood as the first projection being at least partially located within the exhaust port 113. For example, the first projection can be entirely located within the exhaust port 113, or it can be partially located within the exhaust port 113 and partially located outside the exhaust port 113. The exhaust area F is disposed outside the circumferential edge of the baffle 1401. This can be understood as the area surrounding the circumferential edge of the baffle 1401 serving as the exhaust area F. The exhaust path E passes at least partially through the exhaust area F. This can be understood as at least a portion of the exhaust path E extending from the exhaust port 113 to the exhaust area F, allowing at least a portion of the airflow to directly pass through the exhaust area F and flow to the outside.

[0154] For example, the fan 130 is configured to discharge air at an angle, and the baffle 1401 is positioned directly opposite the fan 130.

[0155] In this embodiment, the heat exchange component, for oblique flow air outlet, by reasonably setting the position of the baffle 1401, ensures that the exhaust path E passes through at least part of the exhaust area F. In this way, at least part of the airflow discharged through the exhaust port 113 can be discharged more smoothly, improving the smoothness of airflow discharge. This can appropriately reduce the power of the fan 130 and improve the heat exchange efficiency of the heat exchange component.

[0156] According to some embodiments of this application, optionally, such as Figures 4 to 8 As shown, and further refer to Figure 12 As shown, Figure 12 The diagram below shows the structure of a fan proposed in some embodiments of this application. The fan 130 includes a mixed-flow fan, which includes an impeller 1312. Along the axial direction of the exhaust port 113, the projection of the baffle 1401 onto the impeller 1312 is at least partially located within the radial dimension of the impeller 1312.

[0157] Reference Figure 12 As shown, the mixed-flow fan includes an impeller assembly 131, which includes an impeller 1312, a shaft 1311 disposed within the impeller 1312, and a series of curved blades 1313 connected to the shaft 1311, resembling a propeller. The curved blades 1313 obliquely push the airflow. The impeller 1312 has two axially connected ends. The shaft 1311 can be connected to a motor, which drives the impeller assembly 131 to rotate, thereby guiding the airflow. The exhaust path E formed by the impeller 1312 can be at an angle of 15 degrees, 20 degrees, 25 degrees, 30 degrees, etc., relative to the axial direction of the mixed-flow fan (which can be understood by referring to the axial direction of the impeller 1312). The mixed-flow fan can be installed on the outside of the housing 110, corresponding to the exhaust port 113. For details, refer to... Figure 5 and Figure 12 As shown, a guide ring 132 is provided at the inlet end of the impeller 1312. The guide ring 132 has an assembly part 1322, which can be a flange. The assembly part 1322 is fixedly connected to the first wall 111, specifically by bolts or screws. A protective mesh cover 135 can also be provided at the outlet end of the impeller 1312. The protective mesh cover 135 has mesh holes, which can reduce the penetration of debris or personnel's hands into the impeller 1312, improve the reliability of the mixed-flow fan, and reduce the possibility of danger. The protective mesh cover 135 can be fixed to the assembly part 1322 by one or more fixing components 133.

[0158] The radial dimension range of impeller 1312 refers to the range covered by the blades 1313 of impeller 1312 when they rotate. It can be roughly understood as the range of the circular area formed with the axis of impeller 1312 shaft as the center and the distance from the blades 1313 of impeller 1312 to the center as the radius.

[0159] like Figure 6 , Figure 6 and Figure 12 As shown, in some implementations, the projection of the baffle 1401 onto the impeller 1312 can be partially located within the radial dimension of the impeller 1312. That is, at least part of the edge of the baffle 1401 is located inside the edge of the impeller 1312, allowing the baffle 1401 to effectively avoid the exhaust path E formed by the impeller 1312. It should be noted that in this implementation, the portion of the baffle 1401 extending beyond the radial dimension of the impeller 1312 is mainly located between the two fans 130 (i.e., the diagonal flow fans). Since the airflow from the two fans 130 cancels each other out in the area between them, there is essentially no airflow passing through. Therefore, placing the baffle 1401 at this location will not significantly affect the airflow efficiency.

[0160] like Figure 11 As shown, the projection of the baffle 1401 onto the impeller 1312 is entirely within the radial dimension of the impeller 1312. That is, the size of the baffle 1401 corresponding to each exhaust port 113 is smaller than the corresponding radial dimension of the impeller 1312, and along the axial direction perpendicular to the impeller 1312 (within...). Figures 5 to 8 For example, the axial direction of the impeller 1312 can be understood by referring to the axial direction of the exhaust port 113. The baffle 1401 is located within the radial dimension range of the impeller 1312 so that the baffle 1401 can avoid the exhaust path E formed by the mixed flow fan.

[0161] In this embodiment, the baffle 1401 is at least partially located within the radial dimension of the impeller 1312, which allows the exhaust path E formed by the mixed-flow fan to be almost entirely within the exhaust zone F. In this way, at least part of the airflow discharged through the exhaust port 113 can be discharged more smoothly, improving the smoothness of airflow discharge. This can appropriately reduce the power of the fan 130 and improve the heat exchange efficiency of the heat exchange component.

[0162] According to some embodiments of this application, optionally, in some implementations, the fan 130 is an axial flow exhaust fan, and the exhaust path E is aligned with the axial direction of the exhaust port 113, referring to... Figure 13 As shown, Figure 13 This is a schematic diagram of the second wall proposed in some embodiments of this application. Along the axial direction of the exhaust port 113, the baffle 1401 is located at a position that avoids the exhaust port 113.

[0163] The sound insulation component (i.e., baffle 1401) is located in the area of ​​the surrounding airflow guiding mechanism of the second wall 140 (understood with reference to the fan 130) and directly opposite the first wall. That is, the baffle 1401 is located in a position that avoids the exhaust port 113. In other words, the first projection of the baffle 1401 onto the first wall 111 does not coincide with the exhaust port 113, and the baffle 1401 is located on the periphery of the exhaust port 113.

[0164] Optionally, the fan 130 can be an axial flow fan, which is disposed at the exhaust port 113 to form an exhaust path E consistent with the axial extension direction of the exhaust port 113. The axial flow fan may include an impeller 1312 and a motor. The impeller 1312 is connected to the motor. 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 roughly like a cylinder. The axial flow fan pushes the airflow along the axial direction by rotating the blades 1313.

[0165] It is understood that in this embodiment, the exhaust path E of the heat exchange component is aligned with the axial direction of the exhaust port 113. The airflow formed by the exhaust port 113 or the fan 130 installed at the exhaust port 113 is discharged outward along the axial direction of the exhaust port 113. By setting the baffle 1401 to avoid the exhaust port 113, the exhaust path E formed by the diagonal flow fan is basically entirely within the exhaust zone F. In this way, the airflow discharged through the exhaust port 113 can be discharged more smoothly, improving the smoothness of airflow discharge. This can appropriately reduce the power and operating noise of the fan 130 and improve the heat exchange efficiency of the heat exchange component.

[0166] In some implementations, the fan 130 is configured as an axial flow outlet (i.e., an axial flow fan), and the baffle 1401 is disposed in the area surrounding the fan 130 of the second wall 140. The air outlet can be located in the center of the baffle 1401. The baffle 1401 being disposed in the area surrounding the fan 130 of the second wall 140 can be understood as being located at the circumferential edge of the projection of the fan 130 onto the second wall 140 and the area outside that circumferential edge. In this implementation, the baffle 1401 can be disposed around the air outlet, and the air outlet can be directly opposite the fan 130.

[0167] According to some embodiments of this application, when the sound insulation element (i.e., baffle 1401) is disposed in the area of ​​the second wall 140 directly opposite the airflow guiding mechanism (i.e., fan 130), the exhaust zone F (i.e., the air outlet on the second wall 140) is disposed around the sound insulation element (i.e., baffle 1401). When the sound insulation element (i.e., baffle 1401) is disposed in the area of ​​the second wall 140 surrounding the airflow guiding mechanism (i.e., fan 130) and directly opposite the first wall 111, the sound insulation element (i.e., baffle 1401) is disposed around the exhaust zone F.

[0168] like Figure 5 , Figure 8 , Figure 10 and Figure 11As shown, the exhaust path E is inclined outward relative to the axial direction of the exhaust port 113. That is, when the fan 130 is discharging air at an oblique angle, the exhaust zone F is located outside the circumferential edge of the baffle 1401. This can be understood as the area surrounding the circumferential edge of the baffle 1401 serving as the exhaust zone F. For oblique airflow, by appropriately positioning the baffle 1401, the exhaust path E at least partially passes through the exhaust zone F. This allows at least a portion of the airflow discharged through the exhaust port 113 to be discharged more smoothly, improving the airflow smoothness. This, in turn, can appropriately reduce the power of the fan 130 and improve the heat exchange efficiency of the heat exchange components.

[0169] Optionally, the fan 130 provides axial flow airflow, and a baffle 1401 is arranged around the exhaust port 113 along its circumference. Specifically, in some implementations, such as... Figure 13 As shown, an exhaust zone F is provided directly opposite the exhaust vent 113, and a baffle 1401 can be arranged around the exhaust zone F. In this embodiment, the baffle 1401 can be used in schemes where the exhaust path E is aligned with the axial direction of the exhaust vent 113. The heat exchange component in this embodiment can be designed for axial airflow. By arranging the baffle 1401 around the exhaust vent 113, the noise-blocking range of the baffle 1401 can be increased, thus improving the noise reduction effect of the heat exchange component.

[0170] According to some embodiments of this application, optionally, a sound insulation component (i.e., baffle 1401) is disposed in the area of ​​the second wall 140 facing the fan 130. The second wall 140 also includes a plurality of spaced connecting rods 141. The baffle 1401 is connected to the housing 110 through the connecting rods 141, and an exhaust zone F is formed between adjacent connecting rods 141. Alternatively, the second wall 140 also includes a first mesh cover 142. The baffle 1401 is connected to the housing 110 through the first mesh cover 142, and the first mesh cover 142 is set as the exhaust zone F.

[0171] In some embodiments, optionally, such as Figure 5 As shown, when the baffle 1401 is disposed in the middle region of the second wall 140, the second wall 140 also includes a connecting rod 141, and the baffle 1401 is connected to the housing 110 through the connecting rod 141. The connecting rod 141 can be connected to the first wall 111 to achieve relative fixation between the connecting rod 141 and the housing 110. Specifically, the connecting rod 141 can be directly connected to the first wall 111 or indirectly connected, for example, as shown in... Figure 5As shown, the connecting rod 141 is connected to the first wall 111 via the enclosure 1402. Multiple connecting rods 141 can be arranged at intervals along the circumference of the baffle 1401, and each connecting rod 141 is fixed to the first wall 111. The connection between the connecting rod 141 and the housing 110 can be detachable or non-detachable. The connecting rod 141 can be located in the exhaust area F, forming an air outlet between two adjacent connecting rods 141. Airflow can flow outward through the area between multiple connecting rods 141 (i.e., the air outlet). The connecting rod 141 can be made of metal to reduce its volume and influence on airflow discharge. Figure 5 and Figure 6 As shown, taking the exhaust path E as an example where the axial direction is inclined outward relative to the exhaust port 113, the exhaust zone F is arranged around the baffle 1401. Multiple connecting rods 141 are arranged at intervals along the circumference of the baffle 1401. One end of each connecting rod 141 is connected to the baffle 1401, and the other end of each connecting rod 141 can be fixedly connected to the housing 110 by bolts. In this embodiment of the heat exchange assembly, the baffle 1401 is connected to the housing 110 through the connecting rods 141. The structure is simple, and the connecting rods 141 are small in size, causing less interference to the airflow, reducing wind resistance, and improving the heat exchange efficiency of the heat exchange assembly.

[0172] According to some embodiments of this application, optionally, when the baffle 1401 is disposed in the middle area of ​​the second wall 140, the second wall 140 further includes a first mesh cover 142, the first mesh cover 142 surrounds the circumference of the baffle 1401, the baffle 1401 is connected to the first mesh cover 142 and is fixedly disposed through the first mesh cover 142, and the mesh holes on the first mesh cover 142 are configured as air outlets.

[0173] For example, such as Figure 10 and Figure 11 As shown, baffle 1401 is disposed in the middle region of second wall 140. Second wall 140 also includes a first mesh cover 142, which is connected to baffle 1401 and disposed in exhaust path E. The first mesh cover 142 is a cover with mesh openings and is disposed in exhaust area F. The first mesh cover 142 and the sealing plate can be an integral structure or a separate assembly structure. Figure 8 , Figure 10 , Figure 11 As shown, the first mesh cover 142 can be a perforated plate with multiple mesh holes arranged in rows and columns. These mesh holes can be circular, hexagonal, or diamond-shaped, and can form air outlets. Figure 10 As shown, the first mesh cover 142 can also be a grille structure. Optionally, in the case where the exhaust zone F surrounds the baffle 1401, as... Figure 8As shown, the first mesh cover 142 can connect the housing 110 and the baffle 1401, so that the baffle 1401 is connected to the housing 110 through the first mesh cover 142. Optionally, the first mesh cover 142 can be fixed to the housing 110 by a detachable method such as bolts. In this embodiment of the heat exchange assembly, 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.

[0174] Optionally, according to some embodiments of this application, when the fan 130 is configured as an axial flow fan, the second wall 140 may include at least one connecting rod 141. The connecting rod 141 may be located at the air outlet, and its two ends may be connected to the baffle 1401 to provide protection and improve the support strength of the second wall 140.

[0175] According to some embodiments of this application, optionally, when the fan 130 is configured as an axial flow fan, the second wall 140 may include a first mesh cover 142. The first mesh cover 142 may be disposed at the air outlet and connected to the baffle 1401 to provide protection and improve the support strength of the second wall 140.

[0176] According to some embodiments of this application, optionally, a plurality of exhaust vents 113 are provided on the first wall 111, and a fan 130 is provided on each of the plurality of exhaust vents 113. A sound insulation component (i.e., baffle 1401) is provided at the position directly opposite to each of the plurality of fans 130. The sound insulation components (i.e., baffle 1401) corresponding to each fan 130 are spaced apart or the sound insulation components (i.e., baffle 1401) corresponding to each fan 130 are integral structures.

[0177] Here, "multiple" refers to two or more. When the baffle 1401 at the corresponding position of each exhaust vent 113 is an integral structure, the baffle 1401 can be a one-piece molded structure or a structure connected into one piece by welding or other methods.

[0178] For example, such as Figure 11 As shown, there can be multiple baffles 1401. Each baffle 1401 corresponds to one of the multiple fans 130 and is spaced apart. Figure 11 The following is an illustrative example using a mixed-flow fan.

[0179] For example, such as Figure 10 As shown, multiple fans 130 can correspond to one baffle 1401. Among them, Figure 10 The following is an illustrative example using a mixed-flow fan.

[0180] It should be noted that "multiple fans 130 can correspond to one baffle 1401" means that at least two fans 130 are equipped with one baffle 1401, that is, at least two fans 130 are equipped with one baffle 1401. For example, two fans 130 can correspond to one baffle 1401; four fans 130 can correspond to two baffles 1401.

[0181] Optionally, this embodiment can be applied to a configuration where the exhaust path E is inclined outward relative to the exhaust port 113, i.e., the fan 130 provides oblique airflow. In some implementations, such as Figure 5 , Figure 8 and Figure 10 As shown, two exhaust vents 113 are spaced apart on the first wall 111, each exhaust vent 113 is equipped with a diagonal flow fan, and each exhaust vent 113 is correspondingly equipped with a baffle 1401. Each baffle 1401 is an integral structure, and the outer side of the circumferential edge of the baffle 1401 forms an exhaust zone F. Optionally, in other implementations, two exhaust vents 113 are spaced apart on the first wall 111, each exhaust vent 113 is equipped with a diagonal flow fan, and each exhaust vent 113 is correspondingly equipped with a baffle 1401, such as... Figure 11 As shown, the baffles 1401 are spaced apart.

[0182] Optionally, in the axial flow air outlet scheme, the sound insulation component (i.e., baffle 1401) is disposed in the area surrounding the fan 130 of the second wall 140 and directly opposite the first wall 111. The circumferential edge of the sound insulation component (i.e., baffle 1401) is connected to the first wall 111, and the middle part of the sound insulation component (i.e., baffle 1401) is hollowed out. This hollowed-out part can serve as the exhaust area F, i.e., the air outlet.

[0183] Optionally, the first wall is provided with multiple exhaust vents, each of which is provided with an airflow guiding mechanism (understood with reference to fan 130), and sound insulation components (i.e. baffle 1401) are arranged around the multiple airflow guiding mechanisms (understood with reference to fan 130).

[0184] In one specific implementation, two exhaust vents 113 are spaced apart on the first wall 111, each exhaust vent 113 is equipped with an axial flow fan, and a baffle 1401 is provided around the outer perimeter of each exhaust vent 113. Each baffle 1401 is an integral structure, such as... Figure 13As shown, the exhaust zones F of each exhaust vent 113 can be continuously arranged, with baffles 1401 surrounding the circumference of the exhaust zone F. It is understandable that in the scheme where the baffles 1401 at corresponding positions of each exhaust vent 113 are spaced apart, the baffles 1401 can be adaptively designed or assembled according to each exhaust vent 113, making the processing and assembly of the baffles 1401 more flexible. When the baffles 1401 at corresponding positions of each exhaust vent 113 are an integral structure, the assembly of the baffles 1401 and the housing 110 is convenient and efficient.

[0185] It should be noted that when the sound insulation component (i.e., baffle 1401) is located in the area of ​​the surrounding airflow guiding mechanism (i.e. fan 130) of the second wall 140 and is directly opposite the first wall, the heat exchange component can be equipped with a mesh cover structure in the exhaust area F.

[0186] According to some embodiments of this application, optionally, when the baffle 1401 is disposed in the middle region of the second wall 140, the baffle 1401 may be configured as circular or elliptical.

[0187] For example, such as Figure 11 As shown, the baffle 1401 is circular, and multiple fans 130 can each be equipped with a baffle 1401, with each baffle 1401 being circular. The circular baffle 1401 can be better matched with the fans 130, and has a smaller effect on airflow turbulence, thus improving the uniformity of airflow in the circumferential area of ​​the baffle 1401.

[0188] For example, such as Figure 8 and Figure 11 As shown, the baffle 1401 is elliptical. Specifically, all the baffles 1401 of the multiple fans 130 can be connected to form a whole, and the baffle 1401 of the whole structure is elliptical. The edge of the elliptical baffle 1401 has less turbulence on the airflow, which improves the uniformity of airflow in the circumferential area of ​​the baffle 1401.

[0189] According to some embodiments of this application, optionally, when the baffle 1401 is arranged around the fan 130 (i.e., when the fan 130 is set as an axial flow fan), the baffle 1401 can be set as a structure with a circular opening or an elliptical opening, wherein the circular opening or the elliptical opening can serve as an air outlet.

[0190] For example, the baffle 1401 can be configured with a circular opening, which serves as an air outlet. The projection of the fan 130 onto the second wall 140 is entirely or substantially entirely located within the air outlet. The baffle 1401 with the circular opening can be configured for a single fan 130. When there are multiple fans 130, the baffles 1401 can be connected as a single unit with adjacent edges, or each baffle 1401 can be configured independently.

[0191] For example, the baffle 1401 can be configured with an elliptical opening, which serves as an air outlet, and the projection of the fan 130 onto the second wall 140 is entirely or substantially entirely located within the air outlet. The baffle 1401 with the elliptical opening can be configured for multiple fans 130, meaning the baffle 1401 surrounds the outer sides of multiple fans 130.

[0192] According to some embodiments of this application, the baffle 1401 may optionally include a porous sound-absorbing structure.

[0193] The baffle 1401 can be partially or entirely composed of porous sound-absorbing structures. A porous sound-absorbing structure is a component with multiple pores (generally micropores) on its surface, which can reduce noise. The noise reduction effect of the porous sound-absorbing structure is mainly based on three mechanisms: noise reflection, scattering, and absorption. The reflection mechanism refers to the fact that when noise encounters the surface of the porous sound-absorbing structure, some of its energy is reflected back; a surface with high reflectivity can effectively reduce sound penetration. The scattering mechanism refers to the fact that the irregular shape of the porous sound-absorbing structure's surface can diversify the direction of noise propagation, thereby reducing noise reflection on the material surface. The micropores and protrusions on the surface of the porous sound-absorbing part can act as scatterers, increasing the contact area between noise and the material, thus reducing noise reflection and propagation. The absorption mechanism refers to the fact that when noise enters the porous sound-absorbing material through the pores, its energy is gradually dissipated due to internal molecular friction and thermal conduction, thus effectively absorbing the noise energy. Porous sound-absorbing structures can be made of sound-absorbing cotton, sound-absorbing panels, etc., which are low in cost and have good noise reduction effect.

[0194] According to some embodiments of this application, optionally, such as Figure 14 As shown, Figure 14 The diagram shows a cross-sectional view of a heat exchange assembly proposed in some embodiments of this application. The heat exchange assembly 101 also includes a first sound-absorbing structure 143, which is disposed on a baffle 1401.

[0195] The sound-absorbing structure provided on the baffle 1401 serves as the first sound-absorbing structure 143. The first sound-absorbing structure 143 can be installed on the side of the baffle 1401 facing the exhaust port 113, or on the side of the baffle 1401 away from the exhaust port 113, or the baffle 1401 can be filled with the first sound-absorbing structure 143.

[0196] In this embodiment, when noise propagates outward through the exhaust vent 113, the first sound-absorbing structure 143 can absorb part of the outwardly propagating noise, thereby reducing the noise of the heat exchange component.

[0197] According to some embodiments of this application, optionally, the first sound-absorbing structure 143 includes a porous sound-absorbing structure; and / or, the first sound-absorbing structure 143 is disposed on the side of the baffle 1401 facing the exhaust port 113.

[0198] A porous sound-absorbing structure is a component with multiple pores (usually micropores) on its surface, which can reduce noise. The noise reduction effect of porous sound-absorbing structures is mainly based on three mechanisms: noise reflection, scattering, and absorption. The reflection mechanism refers to the fact that when noise encounters the surface of the porous sound-absorbing structure, some of its energy is reflected back; a surface with high reflectivity can effectively reduce sound penetration. The scattering mechanism refers to the fact that the irregular shape of the porous sound-absorbing structure's surface can diversify the direction of noise propagation, thereby reducing noise reflection at the material surface. The micropores and protrusions on the surface of the porous sound-absorbing part can act as scatterers, increasing the contact area between noise and the material, thus reducing noise reflection and propagation. The absorption mechanism refers to the fact that when noise enters the porous sound-absorbing material through the pores, its energy is gradually dissipated due to internal molecular friction and thermal conduction, thus effectively absorbing the noise energy. Porous sound-absorbing structures can specifically be sound-absorbing cotton, sound-absorbing panels, etc., which are relatively inexpensive and have good noise reduction effects.

[0199] Optionally, a first sound-absorbing structure 143 may be attached to the side of the baffle 1401 facing the exhaust vent 113. The first sound-absorbing structure 143 may be a porous sound-absorbing structure. The first sound-absorbing structure 143 is disposed on the side of the baffle 1401 facing the exhaust vent 113, which can not only absorb some of the noise transmitted to the outside, but also absorb the noise reflected by the baffle 1401, thereby reducing the noise of the heat exchange component.

[0200] Optionally, such as Figure 14 As shown, the heat exchange assembly also includes a second sound-absorbing structure 144. The wall of the housing 110 with the exhaust port 113 is the first wall 111. The second sound-absorbing structure 144 is provided on the wall surface of the first wall 111 facing the baffle 1401 (i.e., the sound-absorbing structure provided on the first wall 111 is defined as the second sound-absorbing structure 144). The second sound-absorbing structure 144 refers to a structure that can absorb noise and thus reduce noise. It can be a porous sound-absorbing structure, such as sound-absorbing cotton, sound-absorbing panels, etc. The second sound-absorbing structure 144 can also be a resonant sound-absorbing structure, etc. The wall surface of the first wall 111 facing the baffle 1401 is the outer wall surface of the first wall 111, on which the second sound-absorbing structure 144 can be provided.

[0201] In this embodiment, when noise propagates outward through the exhaust vent 113, the second sound-absorbing structure 144 can absorb part of the outwardly propagating noise. Furthermore, the noise emitted by the baffle 1401 can propagate to the second sound-absorbing structure 144 and be absorbed again, thereby reducing the noise of the heat exchange assembly.

[0202] According to some embodiments of this application, the baffle 1401 may optionally include a metal sealing plate.

[0203] The sound insulation of baffle 1401 follows a mass law: the heavier the material of baffle 1401 (the higher the surface density or unit volume density), the better the sound insulation effect. Theoretically, doubling the surface density can increase the sound insulation by approximately six decibels. Therefore, a higher density is better for baffle 1401. Considering both cost and noise reduction effect, this embodiment uses a metal sealing plate as baffle 1401. A metal sealing plate refers to a plate made of metal, such as a metal composite plate or alloy plate, specifically a steel plate. Steel plates have high hardness, high density, and low cost. Using a steel plate as baffle 1401 can reduce the cost of the heat exchange equipment and provide good noise reduction. Baffle 1401 can consist solely of a metal sealing plate, or it can be supplemented with plates of other materials, such as sound-absorbing cotton.

[0204] According to some embodiments of this application, optionally, such as Figure 10 As shown, exhaust zone F is configured with an exhaust grille structure.

[0205] The air outlet grille structure can be a structure with gaps formed by parallel or interlaced grille bars 146. Optionally, the first mesh cover 142 can be configured almost entirely as an air outlet grille structure.

[0206] For example, in the case of oblique airflow, the air outlet grille structure is arranged around the baffle 1401 in the circumference. The baffle 1401 is connected to the air outlet grille structure and is fixedly installed through the air outlet grille structure. The grille holes on the air outlet grille structure are set as air outlets (air outlets of the second wall 140).

[0207] It should be noted that the air outlet grille structure can also be integrated with the first mesh cover 142 or the connecting rod 141. Specifically, when the first mesh cover 142 is provided at the air outlet (i.e., exhaust area F), the air outlet grille structure can be installed in the mesh of the first mesh cover 142; when the connecting rod 141 is provided at the air outlet (i.e., exhaust area F), an air outlet grille structure can be provided between two adjacent connecting rods 141.

[0208] The air outlet grille structure provides good rain protection, allowing for smooth airflow and reducing the possibility of rainwater entering the heat exchange components during rain. In some implementations, the air outlet grille may include multiple horizontally parallel grille bars 146, with gaps between adjacent bars 146 to allow airflow. Each bar 146 slopes outwards from top to bottom, allowing rainwater to be discharged along the grille structure, thus reducing the likelihood of rainwater entering the heat exchange components.

[0209] According to some embodiments of this application, optionally, such as Figures 5 to 8 As shown, the second wall 140 also includes a surrounding panel 1402 connected to the first wall 111. The surrounding panel 1402 is connected to the first wall 111 and is arranged around the exhaust port 113 and the fan 130. A baffle 1401 is connected to the surrounding panel 1402.

[0210] The wall of the housing 110 with the exhaust port 113 is the first wall 111. The circumferential edge of the first wall 111 facing the baffle 1401 is connected to the surrounding plate 1402. The baffle 1401 is located inside the surrounding plate 1402 and connected to the surrounding plate 1402.

[0211] The enclosure 1402 can be set around the circumferential edge of the first wall 111.

[0212] When the baffle 1401 is disposed in the middle area of ​​the second wall 140, the baffle 1401 can be connected to the enclosure 1402 via the first mesh cover 142 or the connecting rod 141. Optionally, the fan 130 can be disposed on the wall surface of the first wall 111 facing the baffle 1401 (the outer wall surface of the first wall 111), and located within the space formed by the enclosure 1402.

[0213] When the fan 130 is configured as an axial flow fan, the baffle 1401 of the second wall 140 can be connected to the enclosure 1402 and connected to the first wall 111 through the enclosure 1402.

[0214] In this embodiment, the enclosure 1402 can reflect noise, thus improving the noise reduction effect of the second wall 140.

[0215] According to some embodiments of this application, optionally, the enclosure 1402 is provided with a third sound-absorbing structure 145, that is, the sound-absorbing structure provided on the enclosure 1402 is defined as the third sound-absorbing structure 145.

[0216] The enclosure 1402 can be directly set as the third sound-absorbing structure 145. Alternatively, a third sound-absorbing structure 145 can be added to the enclosure 1402. The third sound-absorbing structure 145 can be set on the side of the enclosure 1402 facing the fan 130, that is, on the inner side of the enclosure 1402.

[0217] The third sound-absorbing structure 145 refers to a structure that can absorb noise and thus reduce noise. It can be a porous sound-absorbing structure, such as sound-absorbing cotton or sound-absorbing panels. The third sound-absorbing structure 145 can also be a resonant sound-absorbing structure, etc.

[0218] In this embodiment, when noise propagates outward through the exhaust vent 113, the third sound-absorbing structure 145 can absorb part of the outwardly propagating noise. Furthermore, the noise emitted by the baffle 1401 can propagate to the third sound-absorbing structure 145 and be absorbed again, thereby reducing the noise of the heat exchange assembly.

[0219] In some embodiments, the enclosure 1402 is configured as a closed structure. This means that the enclosure 1402 is closed at both ends, and the enclosure 1402 can be a completely sealed plate or a plate with a few through holes. The enclosure 1402 can be a solid sealed structure or a hollow plate with a sealed internal surface. A third sound-absorbing structure 145 may be added to the inner side of the enclosure 1402.

[0220] Understandably, the enclosure 1402 is designed as a closed structure, which can effectively block noise from the side, reflect the noise, and reduce the noise by being absorbed by the sound-absorbing structure.

[0221] In an optional embodiment, the heat exchange assembly 101 is disposed inside the chamber 11, and the enclosure 1402 is configured as a closed structure.

[0222] It is understandable that when the heat exchange assembly 101 is installed inside the chamber 11, setting the enclosure 1402 as a closed structure can increase the possibility of noise being blocked by the enclosure 1402 in its vicinity, reduce the possibility of noise spreading to other areas of the chamber 11, and improve the operating effect of the energy storage device. According to some embodiments of this application, optionally, along the arrangement direction from the first wall 111 to the baffle 1401, there is a gap between the fan 130 and the baffle 1401.

[0223] A gap is provided between the baffle 1401 and the fan 130, which allows for a distance between the exhaust port of the fan 130 and the baffle 1401, forming a ventilation transition section, reducing wind resistance, and improving the guiding effect of the fan 130 on airflow.

[0224] According to some embodiments of this application, optionally, such as Figure 5 , Figure 6 , Figure 12 and combined with, for example Figures 15 to 20 As shown, Figure 15 This is a schematic diagram of the structure of a fan proposed in some embodiments of this application from another perspective. Figure 16 This is a cross-sectional schematic diagram of a fan proposed in some embodiments of this application. Figure 17This is an assembly cross-sectional view of the air guide ring and impeller assembly proposed in some embodiments of this application.

[0225] Figure 18 This is a schematic diagram of the impeller assembly proposed in some embodiments of this application from one perspective. Figure 19 This is a schematic diagram of the impeller assembly proposed in some embodiments of this application from another perspective. Figure 20 The diagram below shows a cross-sectional view of an impeller assembly according to some embodiments of this application. The fan 130 includes a guide ring 132 and an impeller assembly 131. The guide ring 132 is mounted on the first wall 111. The impeller assembly 131 includes an impeller 1312 and blades 1313. The impeller 1312 is cylindrical and surrounds the outer side of the blades 1313, and is fixedly connected to the blades 1313. The two axial ends of the guide ring 132 are the air inlet end 1325 and the air outlet end 1326, respectively. The two ends of the impeller 1312 along the axial direction are the impeller inlet end 1316 and the impeller outlet end 1317, respectively. Along the axial direction of the impeller 1312, the air ring outlet end 1326 is located inside the impeller inlet end 1316. Along the radial direction of the impeller 1312, the air guide ring 132 is clearance-fitted with the impeller 1312. The impeller assembly 131 is configured to rotate relative to the air guide ring 132. The impeller 1312 is provided with a blocking part 136, which is configured to protrude from the outer peripheral wall of the impeller 1312.

[0226] When the exhaust vent 113 serves as the air inlet of the housing 110, in this embodiment, the fan 130 can be installed on the inner wall surface of the first wall 111. For example... Figure 5 , Figure 6 As shown, when the exhaust port 113 serves as the exhaust port of the housing 110, the fan 130 in this embodiment can be installed on the outer wall surface of the first wall 111. The air guide inlet end of the air guide ring 132 is used to connect with the first wall 111.

[0227] The air guide ring 132 guides the airflow and can be connected to the first wall 111 to fix the fan 130 to the external fixed component. The air guide ring 132 has a generally cylindrical structure, forming a channel for airflow. Specifically, the air guide ring 132 can be a cylindrical structure with a generally circular or elliptical cross-section, or it can be a cylindrical structure with a polygonal or irregular cross-section. The air guide ring 132 is connected at both ends along its axial direction, and the two ends of the air guide ring 132 are the air inlet end 1325 and the air outlet end 1326, respectively. The airflow can flow from the air inlet end 1325 along the interior of the air guide ring 132 to the air outlet end 1326.

[0228] The impeller assembly 131 guides airflow through rotation, and the direction of airflow can be understood by referring to arrow C. The impeller 1312 is cylindrical, meaning that at least part of the impeller 1312 is a roughly cylindrical structure. For example, the impeller 1312 can be a roughly circular cylindrical structure. Of course, the impeller 1312 can also be processed into other cylindrical structures as needed. The sidewalls of the impeller 1312 can be sealed to reduce the possibility of airflow leakage from the sidewalls of the impeller 1312 and easy backflow to the impeller inlet end 1316. The two ends of the impeller 1312 are connected in the axial direction, and a flow channel for airflow is formed inside the impeller 1312. The two ends of the impeller 1312 in the axial direction are the impeller inlet end 1316 and the impeller outlet end 1317, respectively. Airflow can flow from the impeller inlet end of the impeller 1312 along the interior of the impeller 1312 to the impeller outlet end 1317. The blade 1313 can be a sheet or a plate structure. The blade 1313 can be one or more blades. All blades 1313 can be set inside the air guide ring 132 and fixedly connected to the inner peripheral wall of the air guide ring 132.

[0229] It is understandable that the airflow direction within the guide ring 132 and impeller assembly 131 can be roughly understood with reference to the axial direction of the guide ring 132 and the impeller 1312. Optionally, the axial direction of the guide ring 132 and the axial direction of the impeller 1312 can be roughly coaxial. The radial direction of the guide ring 132 is roughly perpendicular to its axial direction, that is, roughly perpendicular to the direction of airflow within the guide ring 132. The radial direction of the impeller 1312 is roughly perpendicular to its axial direction, that is, roughly perpendicular to the direction of airflow within the impeller 1312.

[0230] like Figure 16 and Figure 17 As shown, the air outlet 1326 of the air ring is located inside the air inlet 1316 of the impeller, so that the air outlet 1326 of the air ring is connected to the air inlet 1316 of the impeller. The air outlet 1326 of the air ring is located inside the air inlet 1316 of the impeller, that is, the air inlet 1316 of the impeller is sleeved on the outside of the air guide ring 132. The connection between the air outlet 1326 of the air ring and the air inlet 1316 of the impeller forms a stepped surface. The orientation of the stepped surface (i.e. the end face of the air outlet 1326 of the air ring) located in the airflow path is consistent with the airflow direction. When the airflow flows from the air outlet 1326 of the air ring to the impeller 1312, it is not easily blocked or disturbed.

[0231] In the radial direction of the guide ring 132, the guide ring 132 and the impeller 1312 are fitted with a clearance fit, mainly to allow the impeller 1312 to rotate around its own axis. Specifically, the clearance fit between the guide ring 132 and the impeller 1312 refers to the clearance fit between the air outlet end 1326 of the guide ring and the air inlet end 1316 of the impeller. In other words, the fitting portion of the impeller 1312 and the guide ring 132 is fitted with a clearance fit, thus allowing the impeller 1312 to rotate around its own axis.

[0232] The outer peripheral wall of the impeller 1312 refers to the outer side of the impeller 1312's peripheral wall, which, together with the inner peripheral wall of the impeller 1312, forms two opposite sides of the impeller 1312's peripheral wall. The blocking portion 136 is configured to protrude from the outer peripheral wall of the impeller 1312. This can be understood as at least a portion of the blocking portion 136 being positioned further outward relative to the outer peripheral wall (the outer peripheral wall of the impeller 1312) along the radial direction of the impeller 1312. There can be one blocking portion 136, or multiple blocking portions spaced apart along the axial direction of the impeller 1312. Along the circumference of the impeller 1312, each blocking portion 136 can be arranged in a complete circle, or only a portion of it can be arranged circumferentially, such as half a circle, 1 / 4 circle, etc. The blocking portion 136 can be integrally formed with the impeller 1312, or it can be connected to the impeller 1312 by welding or other methods. Of course, the blocking portion 136 can also be fixedly connected to the impeller 1312 in other ways.

[0233] Optionally, in some embodiments, multiple blocking portions 136 are provided along the axial direction of the impeller 1312. Among two adjacent blocking portions 136, the protrusion height of the blocking portion 136 closer to the impeller inlet end 1316 is smaller than that of the blocking portion 136 closer to the impeller inlet end 1316. In this embodiment, the closer to the impeller inlet end 1316, the higher the protrusion height of the blocking portion 136, which can provide an advanced blocking effect on the airflow flowing in reverse from the impeller outlet end 1317.

[0234] Optionally, the fan 130 also includes a drive unit 134, which drives the impeller assembly 131 to rotate. The drive unit 134 and the impeller assembly 131 can be connected via a shaft 1311. The blades 1313 are connected to the shaft 1311. The drive unit 134 drives the shaft 1311 to rotate the blades 1313 and the impeller 1312 together. The drive unit 134 can be a motor or the like.

[0235] Optionally, the fan 130 may also include a fixing component 133, which is used to connect the impeller assembly 131 and the air guide ring 132. The fixing component 133 can fix the impeller assembly 131 to the air guide ring 132, while retaining the degree of freedom for the impeller assembly 131 to rotate around its own axis. In this way, the assembly of the fan 130 can be completed by connecting the air guide ring 132 to the external fixing component.

[0236] In this embodiment, when the fan 130 is running, the impeller assembly 131 rotates, pushing the airflow from the guide ring 132 towards the exhaust port (i.e., the impeller outlet 1317) of the impeller assembly 131. The air outlet 1326 of the guide ring 132 is inserted into the impeller inlet 1316 of the impeller 1312. In this way, the stepped surface formed by the fitting of the 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 turbulence caused by the step surface blocking the airflow from the guide ring 132 to the impeller 1312, which would increase the noise. At the same time, the blocking part 136 can block the airflow flowing against the flow along the outside of the impeller 1312, reducing the possibility of the airflow (the airflow flowing out of the exhaust port of the impeller 1312) flowing against the flow and re-entering the impeller 1312 through the gap at the connection between the guide ring 132 and the impeller 1312, which would cause the airflow inside the impeller 1312 to separate and become turbulent. This further reduces the noise of the airflow, thereby reducing the overall operating noise of the fan 130 and the heat exchange component 101 using the fan 130.

[0237] According to some embodiments of this application, optionally, the impeller inlet end 1316 is provided with a blocking part 136.

[0238] The impeller inlet end 1316 includes the circumferential wall of the impeller 1312 near its own inlet end face and the inlet end face. That is, at least one blocking part 136 can be provided on the circumferential wall or end face of the impeller 1312 near the guide ring 132. Optionally, the blocking part 136 can be provided on the circumferential wall corresponding to the connection position between the impeller 1312 and the guide ring 132. Specifically, the blocking part 136 can be a structure formed by folding the end face of the impeller inlet end 1316 outward.

[0239] In this embodiment, the fan 130 has a blocking part 136 provided at the impeller inlet end 1316. The blocking part 136 can directly block and interfere with the airflow returning to the impeller inlet end 1316, thereby reducing the airflow from the impeller outlet end 1317 to the impeller assembly 131 via the impeller inlet end 1316, and reducing the operating noise of the fan 130.

[0240] According to some embodiments of this application, optionally, reference is made to... Figure 16 and Figure 17 As shown, the blocking part 136 and the impeller 1312 are an integral structure.

[0241] The blocking part 136 can be integrally formed with the impeller 1312 by casting / injection molding or other methods, or it can be integrally connected by welding or other methods. Optionally, the blocking part 136 can be a structure formed by the outward protrusion of the outer peripheral wall of the impeller 1312, or it can be a flanged structure formed by the outward folding of the end of the impeller 1312.

[0242] In this embodiment, the blocking part 136 and the impeller 1312 are integrated into one structure, and the outer peripheral wall of the blocking part 136 and the impeller 1312 can be seamlessly connected, which improves the blocking effect of the blocking part 136 on the airflow.

[0243] According to some embodiments of this application, optionally, such as Figures 16 to 20 As shown, the blocking part 136 is arranged in a closed loop around the outer peripheral wall (outer peripheral wall of impeller 1312) of impeller 1312 in the circumferential direction.

[0244] In other words, the blocking part 136 is arranged in a ring around the outer periphery of the impeller 1312. It should be noted that when multiple blocking parts 136 are arranged along the axial direction of the impeller 1312, one of the blocking parts 136 can be arranged in a ring, while the other blocking parts 136 can be arranged in a ring, or they can be arranged partially along the circumference.

[0245] Optionally, the blocking part 136 can be attached to or connected to the outer peripheral wall of the impeller 1312 at any position along the circumference 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 airflow flowing back along the outer peripheral wall surface of the impeller 1312 to the impeller inlet 1316.

[0246] In this embodiment, the blocking part 136 can block the airflow at any position along the circumference of the impeller 1312, reducing the possibility of the airflow from the impeller outlet 1317 flowing back to the impeller assembly 131 via the impeller inlet 1316, and reducing the operating noise of the fan 130.

[0247] According to some embodiments of this application, optionally, such as Figures 16 to 20 As shown, the blocking part 136 includes a first stop section 1361. One end of the first stop section 1361 is connected to the outer peripheral wall (the outer peripheral wall of the impeller 1312). The first stop section 1361 is configured to protrude radially from the outer peripheral wall (the outer peripheral wall of the impeller 1312) along the impeller 1312, or the first stop section 1361 is configured to gradually approach the impeller outlet end 1317 from the end connected to the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the end away from the outer peripheral wall (the outer peripheral wall of the impeller 1312).

[0248] Alternatively, in one implementation, such as Figures 16 to 20As shown, the first stop section 1361 is configured to protrude radially from the outer peripheral wall (outer peripheral wall of impeller 1312) along the impeller 1312. That is, the protrusion direction of the first stop section 1361 is approximately the same as the radial direction of the impeller 1312, the protrusion direction of the first stop section 1361 is approximately perpendicular to the axial direction of the impeller 1312, and the first stop section 1361 is perpendicular to the outer peripheral wall of the impeller 1312.

[0249] Alternatively, in another implementation, the end of the first stop section 1361 furthest from the outer peripheral wall (the outer peripheral wall of the impeller 1312) is positioned closer to the impeller outlet end 1317 than the end of the first stop section 1361 connected to the outer peripheral wall (the outer peripheral wall of the impeller 1312). Optionally, the first stop section 1361 can gradually change, that is, the first stop section 1361 can be configured to gradually approach the impeller outlet end 1317 from the end connected to the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the end furthest from the outer peripheral wall (the outer peripheral wall of the impeller 1312). Specifically, as shown... Figure 21 As shown, Figure 21 The diagram shows a partial cross-sectional view of the impeller assembly proposed in some embodiments of this application. In some specific implementations, the first stop section 1361 can be inclined towards the side where the impeller outlet end 1317 is located, from the end connected to the outer peripheral wall (outer peripheral wall of impeller 1312) to the end facing away from the outer peripheral wall (outer peripheral wall of impeller 1312). That is, the protruding direction of the first stop section 1361 is inclined relative to the radial direction of impeller 1312, and the first stop section 1361 is inclined towards the impeller inlet end 1316. In other implementations, the first stop section 1361 can be curved in an arc shape from the end connected to the outer peripheral wall (outer peripheral wall of impeller 1312) to the end facing away from the outer peripheral wall (outer peripheral wall of impeller 1312).

[0250] In this embodiment, the first stop section 1361 of the fan 130 is approximately perpendicular to the outer peripheral wall (the outer peripheral wall of the impeller 1312) or is gradually positioned closer to the impeller outlet 1317. The stop angle α between the protruding direction A of the first stop section 1361 and the flow direction B of the airflow flowing in the opposite direction from the impeller outlet 1317 is less than or equal to 90 degrees. This provides a better stop effect on the reverse airflow and further reduces the possibility of the airflow from the impeller outlet 1317 flowing back to the impeller assembly 131 via the impeller inlet 1316, thereby reducing the operating noise of the fan 130.

[0251] According to some embodiments of this application, optionally, the blocking portion 136 includes a first stop section 1361 along the radial direction of the impeller 1312, and the first stop section 1361 is configured to be formed by folding the outer peripheral wall of the impeller 1312 radially outward.

[0252] like Figures 16 to 20 As shown, the first stop section 1361 can be formed by folding the outer peripheral wall of the impeller inlet end 1316 radially outward. Optionally, the first stop section 1361 can also be formed by folding the outer peripheral wall of the impeller outlet end 1317 radially outward.

[0253] The first stop section 1361 is formed by folding the outer peripheral wall of the impeller 1312. It has a simple structure and the outer peripheral wall of the impeller 1312 and the first stop section 1361 are an integral structure, which reduces the possibility of airflow backflow from the connection between the outer peripheral wall of the impeller 1312 and the first stop section 1361. It further reduces the possibility of airflow from the impeller outlet 1317 backflow to the impeller assembly 131 via the impeller inlet 1316, thereby reducing the operating noise of the fan 130.

[0254] According to some embodiments of this application, optionally, such as Figure 22 As shown, Figure 22 The diagram shows a partial cross-sectional view of the impeller assembly proposed in some embodiments of this application. The blocking part 136 further includes a second stop section 1362. Along the radial direction of the impeller 1312, one end of the first stop section 1361 away from the outer peripheral wall (the outer peripheral wall of the impeller 1312) is connected to one end of the second stop section 1362. Along the axial direction of the impeller 1312, the second stop section 1362 is located on the side of the first stop section 1361 near the impeller outlet end 1317. The second stop section 1362 and the first stop section 1361 are arranged at an acute angle, a right angle, or an obtuse angle. The second stop section 1362 is spaced apart from the outer peripheral wall (the outer peripheral wall of the impeller 1312).

[0255] Along the radial direction of the impeller 1312, the first stop section 1361 can be a straight section or a curved or bent section. Along the radial direction of the impeller 1312, the second stop section 1362 can also be a straight section or a curved or bent section. Along the circumferential direction of the impeller 1312, the second stop section 1362 can be connected to any position of the first stop section 1361, or it can be connected to a partial position of the first stop section 1361. 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 by a straight bend, or they can be connected by a transitional bend such as an arc segment.

[0256] Along the radial direction of the impeller 1312, the end of the first stop section 1361 away from the outer peripheral wall (the outer peripheral wall of the impeller 1312) is the outer end of the first stop section 1361 along the radial direction of the impeller 1312.

[0257] The first stop section 1361 is located on the side near the impeller outlet end 1317, meaning the side of the first stop section 1361 facing the impeller outlet end 1317. The second stop section 1362 is spaced apart from the outer peripheral wall (the outer peripheral wall of the impeller 1312), meaning a gap is provided between the second stop section 1362 and the outer peripheral wall (the outer peripheral wall of the impeller 1312) for airflow to enter. Specifically, as shown... Figure 22 As shown, the second stop section 1362 can be spaced apart from the outer peripheral wall (the outer peripheral wall of the impeller 1312) at any position from the end away from the first stop section 1361 to the end connected to the first stop section 1361, so that the counterflow airflow from the impeller outlet 1317 can enter between the second stop section 1362 and the outer peripheral wall (the outer peripheral wall of the impeller 1312).

[0258] In some implementations, the second stop section 1362 is bent at an acute angle to the first stop section 1361. That is, along the axial direction of the impeller 1312, the end of the second stop section 1362 that connects to the first stop section 1361 is inclined closer to the outer peripheral wall (the outer peripheral wall of the impeller 1312) than the end of the second stop section 1362 that is farther away from the first stop section 1361 (this end is the end of the second stop section 1362 that is closer to the air outlet 1317 of the impeller).

[0259] In some implementations, the second stop section 1362 is bent at an obtuse angle to the first stop section 1361. That is, along the axial direction of the impeller 1312, the end of the second stop section 1362 that connects to the first stop section 1361 is inclined further away from the outer peripheral wall (the outer peripheral wall of the impeller 1312) than the end of the second stop section 1362 that is further away from the first stop section 1361 (this end is the end of the second stop section 1362 that is closer to the air outlet 1317 of the impeller).

[0260] In some implementations, such as Figure 22 As shown, the second stop segment 1362 is bent at approximately a right angle to the first stop segment 1361, that is, the second stop segment 1362 is set approximately perpendicular to the first stop segment 1361.

[0261] In this embodiment, the second stop section 1362 of the fan 130 is located on the side of the first stop section 1361 near the impeller outlet 1317, and the second stop section 1362 is spaced apart from the outer peripheral wall (the outer peripheral wall of the impeller 1312). The second stop section 1362 can cooperate with the first stop section 1361 to form a stop groove with an opening facing the impeller outlet 1317. Under the limiting effect of the second stop section 1362, the blocking effect on the airflow flowing backward from the impeller outlet 1317 can be further improved, and the possibility of the airflow from the impeller outlet 1317 flowing back to the impeller assembly 131 via the impeller inlet 1316 can be further reduced, thereby reducing the operating noise of the fan 130.

[0262] According to some embodiments of this application, optionally, such as Figure 22 As shown, the blocking part 136 also includes a second stop section 1362, which is configured to be formed by folding the outer end of the first stop section 1361 along the impeller radial direction toward the impeller 1312.

[0263] The second stop section 1362 is formed by folding the first stop section 1361, which has a simple structure and is easy to process. Furthermore, the connection between the second stop section 1362 and the first stop section 1361 is an integral structure, which reduces the possibility of airflow backflow from the connection between the second stop section 1362 and the first stop section 1361. This further reduces the possibility of airflow from the impeller outlet 1317 flowing back to the impeller assembly 131 via the impeller inlet 1316, thereby reducing the operating noise of the fan 130.

[0264] According to some embodiments of this application, optionally, such as Figure 16 and Figure 17 As shown, along the direction from the air inlet 1325 to the air outlet 1326 of the air guide ring, the flow cross section of the air guide ring 132 is set to a tapering shape.

[0265] The direction from the air inlet 1325 to the air outlet 1326 of the air guide ring is also along the direction of airflow. Along the direction of airflow, the air guide ring 132 can be at least partially set to be tapered, so that the airflow area gradually decreases, thereby improving the guiding effect on the airflow.

[0266] Optionally, in some implementations, the air guide ring 132 includes a first air guide section 1323 and a second air guide section 1324. Along the direction from the air inlet end 1325 of the air guide ring to the air outlet end 1326 of the air guide ring, the flow cross section of the first air guide section 1323 is set to gradually narrow, the air outlet end of the first air guide section 1323 and the air inlet end of the second air guide section 1324 are aligned and connected, the second air guide section 1324 is a straight section, and the second air guide section 1324 is inserted into the air inlet end 1316 of the impeller.

[0267] The flow cross section can be understood as the cross section of the area through which airflow passes in the airflow channel. This cross section can be the cross section of the guide ring 132 along its axial direction. Specifically, the flow cross section of the first guide section 1323 is the cross section of the airflow channel formed by the first guide section 1323 along its own axial direction; the flow cross section of the second guide section 1324 is the cross section of the airflow channel formed by the second guide section 1324 along its own axial direction.

[0268] The direction from the air inlet 1325 to the air outlet 1326 of the air ring is also the flow direction of the airflow within the air guide ring 132. Along the flow direction of the airflow, the flow cross-section of the first air guide section 1323 gradually narrows, which can effectively guide the airflow. The first air guide section 1323 can be a section with the same rate of change of flow cross-section, or it can include multiple sub-segments with different rates of change of flow cross-section. Optionally, in some embodiments, the first air guide section 1323 includes a first sub-segment 1327 and a second sub-segment 1328. Along the airflow direction, the first sub-segment 1327, the second sub-segment 1328, and the second air guide section 1324 are sequentially aligned, connected, and interconnected. The rate of change of the flow cross-section of the first sub-segment 1327 is greater than that of the second sub-segment 1328. In other words, the first sub-segment 1327 has a more pronounced narrowing than the second sub-segment 1328. For example, along the axial direction, both the first sub-segment 1327 and the second sub-segment 1328 are set to an arc-shaped tapering, with the curvature of the first sub-segment 1327 being greater than that of the second sub-segment 1328. By making the rate of change of the flow cross-section near the air inlet greater than that near the air outlet, the airflow guiding effect can be improved, and noise can be reduced.

[0269] The air outlet end and the air inlet end of the second air guide section 1324 are aligned and connected. This can be understood as the flow cross section of the second air guide section 1324 having approximately the same area and shape as the flow cross section of the air outlet end of the first air guide section 1323, so that the air outlet end of the first air guide section 1323 and the air inlet end of the second air guide section 1324 are aligned and connected, allowing the airflow to flow smoothly at this point.

[0270] The second guide section 1324 being a straight section can be understood as meaning that the shape and area of ​​the flow cross-section of the second guide section 1324 remain approximately constant from its inlet end to its outlet end. Setting the second guide section 1324 as a straight section, and its insertion fit with the impeller inlet end 1316, improves the fit between the second guide section 1324 and the impeller 1312, reduces the radial gap between the guide ring 132 and the impeller 1312, and reduces the amount of airflow (airflow from the exhaust port of the impeller 1312) that flows back through the gap at the connection between the guide ring 132 and the impeller 1312 to re-enter the impeller 1312, thus reducing noise. It should be noted that the impeller 1312 can at least have its impeller inlet end 1316 set as a straight section to better fit with the second guide section 1324.

[0271] The structure of the air guide ring 132 of the fan 130 in this embodiment can not only play a good guiding role, but also reduce the flow of air (the airflow flowing out of the exhaust port of the impeller 1312) that flows back and re-enters the impeller 1312 through the gap at the connection between the air guide ring 132 and the impeller 1312, thereby reducing noise.

[0272] According to some embodiments of this application, optionally, such as Figures 16 to 22 As shown, along the axial direction of the impeller 1312, the two ends of the blade 1313 do not extend beyond the end face of the corresponding end of the impeller 1312.

[0273] Both ends of blade 1313 do not extend beyond the corresponding end faces of impeller 1312. This means that blade 1313 is entirely within the axial dimension of impeller 1312. The end face of blade 1313 facing impeller outlet 1317 can be flush with or located inside impeller outlet 1317. Similarly, the end face of impeller 1312 facing impeller inlet 1316 can be flush with or located inside impeller inlet 1316. Having blade 1313 entirely within the axial dimension of impeller 1312 improves the interaction between the blades and impeller 1312, enhancing the fan 130's ability to guide airflow.

[0274] According to some embodiments of this application, optionally, such as Figures 16 to 22 As shown, along the axial direction of the impeller 1312, the distance between the blade 1313 and the end face of the impeller outlet 1317 is the first dimension, and the distance between the blade 1313 and the end face of the impeller inlet 1316 is the second dimension L. The first dimension is smaller than the second dimension L.

[0275] Optionally, along the axial direction of the impeller 1312, both ends of the blade 1313 do not extend beyond the end faces of the corresponding ends of the impeller 1312, and the first dimension is smaller than the second dimension L. The first dimension is the axial distance between the end face of the blade 1313 facing the impeller outlet 1317 and the end face of the impeller outlet 1317 along the axial direction of the impeller 1312. The second dimension L is the axial distance between the end face of the blade 1313 facing the impeller inlet 1316 and the end face of the impeller inlet 1316 along the axial direction of the impeller 1312. It should be noted that the first dimension can be zero (i.e., the end face of the blade 1313 is flush with the end face of the impeller outlet 1317) or a positive number. Since the first dimension is smaller than the second dimension L, and the second dimension L is a positive number, in this embodiment, the end face of the impeller 1312 facing the impeller inlet 1316 is located inside the impeller inlet 1316. Understandably, the larger second dimension L provides assembly space for the air guide ring 132, allowing it to be inserted into the air inlet of the impeller 1312 without interfering with the blades 1313 in the axial direction. The smaller first dimension allows the impeller outlet 1317 to have a higher airflow pressure, which is beneficial for promoting rapid airflow.

[0276] According to some embodiments of this application, optionally, reference is made to... Figure 12 , Figures 15 to 16 and combined Figure 23 As shown, Figure 23The diagram shows a partial structural diagram of a fan according to some embodiments of this application. The air guide ring 132 also includes an assembly part 1322. The assembly part 1322 is connected to the outer wall surface of the air inlet end 1325 of the air guide ring. The assembly part 1322 extends outward along the radial direction of the impeller 1312 and is used to connect with an external fixed component.

[0277] For ease of description and understanding, the main body of the air guide ring 132 is defined as the cover portion 1321. Specifically, the air guide ring 132 includes the cover portion 1321 and the assembly portion 1322. The two ends of the cover portion 1321 along the axial direction of the air guide ring 132 are the air inlet end 1325 and the air outlet end 1326, respectively. The assembly portion 1322 is connected to the outer wall surface of the air inlet end 1325 of the cover portion 1321. The assembly portion 1322 is used to connect with external fixed components. The fan 130 also includes a fixing component 133, and the impeller assembly 131 is mounted on the assembly portion 1322 through the fixing component 133.

[0278] The assembly part 1322 is fixedly connected to the cover part 1321, and the two can be an integral structure. Optionally, the assembly part 1322 can be a structure formed by folding the air inlet end 1325 of the air ring of the cover part 1321 outward. Optionally, the assembly part 1322 can be a flange structure, and the assembly part 1322 can be detachably connected to external fixing components by bolts or the like.

[0279] In this embodiment, the fan 130 can easily fix the air guide ring 132 to the external fixing component by setting the assembly part 1322.

[0280] According to some embodiments of this application, optionally, reference is made to... Figure 12 , Figures 15 to 16 and combined Figure 23As shown, the fan 130 also includes a fixing component 133, through which the impeller assembly 131 is mounted to the assembly section 1322. The fixing component 133 connects the impeller assembly 131 and the assembly section 1322, allowing the impeller assembly 131 to be mounted on the mounting section. It should be noted that the fixing component 133 remains relatively fixed to the assembly section 1322, while the impeller assembly 131 can rotate relative to the fixing component 133. For example, the fixing component 133 may include a connecting frame 1330 and a bearing fixed on the connecting frame 1330. The connecting frame 1330 is fixedly connected to the assembly part 1322. The bearing is connected to the wheel shaft 1311 of the impeller assembly 131 through a shaft member, so that the impeller assembly 131 can rotate relative to the fixing component 133 and can be installed to the assembly part 1322 through the fixing component 133. As another example, the fixing component 133 may be connected to the fixed part of the drive component 134 (e.g., a motor) of the impeller assembly 131. The drive output end 1343 of the drive component 134 is connected to the impeller assembly 131, so that the impeller assembly 131 can rotate relative to the fixing component 133 and can be installed to the assembly part 1322 through the fixing component 133.

[0281] In this embodiment, the fan 130 has an air guide ring 132 disposed on the assembly part 1322, and the impeller assembly 131 is installed on the assembly part 1322, so that the air guide ring 132 and the impeller assembly 131 are integrated into one unit, resulting in a simple structure. By connecting the assembly part 1322 to the external fixing component, the entire fan 130 can be fixed on the external fixing component, making operation convenient.

[0282] Optionally, reference may continue to be made to some embodiments of this application. Figure 12 , Figures 15 to 16 and combined Figure 23 As shown, the fan 130 also includes a drive unit 134, and the impeller assembly 131 also includes a shaft 1311. The shaft 1311 is disposed inside the impeller 1312, and the blades 1313 are connected to the shaft 1311. Along the axial direction of the impeller 1312, the drive unit 134 is connected to the end of the shaft 1311 away from the guide ring 132.

[0283] The blades 1313 and the shaft 1311 can be spaced apart from the guide ring 132 along the axial direction of the impeller 1312, so that the impeller assembly 131 can rotate around its own axis, reducing the possibility of interference between the impeller assembly 131 and the guide ring 132.

[0284] Optionally, multiple blades 1313 are provided, and the multiple blades 1313 are connected to the wheel shaft 1311 at approximately equal intervals along the circumference of the wheel shaft 1311. The blades 1313, wheel shaft 1311 and impeller 1312 can be an integral structure.

[0285] The drive unit 134 may include a motor, the output shaft of which is fixedly connected to the wheel shaft 1311 to drive the impeller assembly 131 to rotate about its own axis.

[0286] In some embodiments, the impeller assembly 131 can be supported and fixed by the output shaft of the motor, and the drive member 134 is fixedly connected to the assembly part 1322 by the fixing component 133, so that the fixing component 133 can support and fix the drive member 134 and the impeller assembly 131. Specifically, the fan 130 also includes the drive member 134, and the impeller assembly 131 also includes a shaft 1311. The shaft 1311 is disposed inside the impeller 1312, and the blades 1313 are connected to the shaft 1311. Along the axial direction of the impeller 1312, the blades 1313 and the shaft 1311 are spaced apart from the guide ring 132. The drive member 134 is connected to the end of the shaft 1311 away from the guide ring 132. The fixing component 133 is connected to the drive member 134 to install the impeller assembly 131 and the drive member 134 in the assembly part 1322.

[0287] Optionally, in some implementations, the fixing component 133 includes a connecting frame 1330, one end of which, the drive component 134, is detachably fixedly connected by bolts or the like, and the other end of the connecting frame 1330 is detachably fixedly connected to the assembly part 1322 by bolts or the like. This detachable nature facilitates the disassembly and maintenance of the drive component 134 and the impeller assembly 131.

[0288] In this embodiment, the fan 130, drive component 134, impeller assembly 131, and air guide ring 132 can be integrated into one unit, which facilitates the assembly of the fan 130 with external fixed components. Furthermore, the impeller assembly 131 and drive component 134 are connected and fixed to the assembly part 1322 through the same fixed component 133, resulting in a simple structure and convenient assembly and disassembly.

[0289] According to some embodiments of this application, optionally, a mounting cavity 1314 is provided inside the wheel shaft 1311, and a driving member 134 is disposed inside the mounting cavity 1314. The driving member 134 is configured to drive the wheel shaft 1311 to drive the impeller assembly 131 to rotate.

[0290] In one optional implementation, the axle 1311 is provided with a mounting cavity 1314, which extends through the end face of the axle 1311 away from the guide ring 132. The axle 1311 is also provided with a transmission part 1315, which is located at the end of the axle 1311 near the guide ring 132. A portion of the drive component 134 is disposed in the mounting cavity 1314 and is clearance-fitted with the hole wall of the mounting cavity 1314. The drive output end 1343 of the drive component 134 is connected to the transmission part 1315 to drive the axle 1311 to rotate the impeller assembly 131.

[0291] like Figures 16 to 22As shown, the hollow interior of the axle 1311 forms a mounting cavity 1314. The end of the mounting cavity 1314 away from the air guide ring 132 is open, while the end of the mounting cavity 1314 near the air guide ring 132 is sealed. The motor body is inserted into the mounting cavity 1314 and has a clearance fit with the mounting cavity 1314, allowing the impeller assembly 131 to rotate relative to the motor body. The motor's output shaft is fixedly connected to the transmission part 1315, enabling the motor's output shaft to drive the impeller assembly 131 to rotate.

[0292] The transmission part 1315 and the drive output end 1343 can be connected by a key or by bolts. Optionally, in one specific implementation, the transmission part 1315 is provided with a polygonal hole, and the drive output end 1343 is configured as a polygonal structure. The drive output end 1343 is inserted into the polygonal hole, so that the drive output end 1343 and the transmission part 1315 are relatively fixed in the circumferential direction. The drive output end 1343 has a limiting part 1345 on the inner side of the polygonal hole (the side of the polygonal hole facing the mounting cavity 1314), and the drive output end 1343 passes through the polygonal hole. A nut assembly 1344 is screwed 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 part 1345 fix the drive output end 1343 and the transmission part 1315 in the axial direction, so as to realize the fixed connection between the drive output end 1343 and the axle 1311.

[0293] It should be noted that, along the axial direction of the impeller assembly 131, the body of the drive component 134 can be entirely located within the mounting cavity 1314, or it can partially protrude from the mounting cavity 1314.

[0294] In this embodiment, the fan 130 has its drive component 134 at least partially built into the mounting cavity 1314, which makes the fan 130 smaller and saves costs. Furthermore, the fact that the drive component 134 is largely built into the mounting cavity 1314 can reduce damage to the drive component 134 caused by rainwater and improve the reliability of the drive component 134.

[0295] According to some embodiments of this application, optionally, such as Figure 12 , Figures 15 to 16 , Figure 23 The fan 130 also includes a protective mesh cover 135, which covers the impeller assembly 131 along the radial outer side of the impeller 1312.

[0296] The protective mesh cover 135 is a cover structure with mesh openings. The protective mesh cover 135 can be installed on the assembly part 1322 and covers the end of the impeller assembly 131 opposite to the wind guide ring 132. The drive component 134 can be located entirely or partially inside the protective mesh cover 135.

[0297] By setting up a protective net cover 135, the air outlet requirements of the fan 130 can be met, while reducing the entry of foreign objects into the fan 130, improving the reliability of the fan 130, and also reducing the risk of operators being accidentally injured by the fan 130.

[0298] Optionally, in some implementations, the protective mesh cover 135 may be provided with an assembly hole 1351, the driving member 134 protrudes from the mounting cavity 1314 and is located in the assembly hole 1351, one end of the fixing component 133 is connected to the driving member 134, and the other end passes around the protective mesh cover 135 and is connected to the assembly part 1322, and the protective mesh cover 135 is pressed against the assembly part 1322 by the fixing component 133. Optionally, the fixing assembly 133 may include a connecting frame 1330. The connecting frame 1330 includes a first connecting portion 1331 and a second connecting portion 1332 connected to each other. The first connecting portion 1331 extends generally along the axial direction of the impeller 1312. One end of the first connecting portion 1331 is connected to the assembly portion 1322. The other end of the second connecting portion 1332 is connected to one end of the second connecting portion 1332. The second connecting portion 1332 extends generally along the radial direction of the impeller 1312. The other end of the second connecting portion 1332 passes around the protective mesh cover 135 on the side opposite to the impeller assembly 131 and is fixedly connected to the drive member 134. Multiple connecting frames 1330 may be spaced apart along the circumference of the protective mesh cover 135. The first connecting portion 1331 may be provided with a connecting plate 1333. The connecting plate 1333 fits against the assembly portion 1322 and can be fixed to the assembly portion 1322 by fasteners such as bolts. The first connecting part 1331 and the second connecting part 1332 can be an integral structure. A protruding connecting block 1341 can be provided on the body of the drive component 134. The second connecting part 1332 is fixedly connected to the connecting block 1341, specifically through a detachable connection using bolts or the like. A connecting plate can be provided at the end of the second connecting part 1332 away from the first connecting part 1331. The second connecting part 1332 fits against the positioning ring plate 1334 or the connecting block 1341 through the connecting plate, and the positioning ring plate 1334 can be fixedly connected using bolts or other fasteners.

[0299] Optionally, the fixing component 133 may further include a positioning ring plate 1334, which is disposed in the assembly hole 1351 and sleeved on the outside of the driving component 134. The second connecting portion 1332 is also fixedly connected to the positioning ring plate 1334. The positioning ring plate 1334 is supported and fixed by the connecting bracket 1330. The positioning ring plate 1334 can restrict the radial movement of the protective mesh cover 135, 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.

[0300] Optionally, a small portion of the drive unit 134 may be exposed outside the protective mesh cover 135. This portion can be connected to the power cord assembly 1342, which supplies power to the drive unit 134. External placement of the power cord assembly 1342 reduces the likelihood of interference between it and the protective mesh cover 135, thus improving the ease of connection between the power cord assembly 1342 and the power source.

[0301] This embodiment has a simple structure and high assembly stability. Furthermore, when maintenance of the impeller assembly 131 is required, the protective cover 135, the drive component 134, and the impeller assembly 131 can be disassembled by removing the fixing component 133, which is convenient.

[0302] According to some embodiments of this application, optionally, such as Figure 12 , Figures 15 to 16 , Figure 23 Along the axial direction of the air guide ring 132, the cover part 1321 includes a protrusion 1329 protruding from the assembly part 1322. The protrusion 1329 is used to insert into the exhaust port 113 of the first wall. The protrusion 1329 is configured as the air inlet end 1325 of the air ring.

[0303] Along the axial direction of the guide ring 132, the protrusion 1329 protrudes towards the side of the shroud portion 1321 opposite to the impeller assembly 131. The protrusion 1329, serving as the air inlet 1325 of the guide ring, can be understood as the protrusion 1329 enclosing the airflow channel forming the airflow channel of the guide ring 132. The inner wall surface of the protrusion 1329 (the inner circumferential surface of the protrusion 1329 facing the airflow channel) is flush with and connected to the inner wall surface of the main body portion of the shroud portion 1321. Along the airflow direction, the inner wall surface of the protrusion 1329 can be tapered to improve airflow guidance and reduce noise.

[0304] Reference Figure 5 and Figure 6 As shown, when the fan 130 is assembled with the first wall 111, the assembly part 1322 can fit against the first wall 111, the impeller assembly 131 is located on the side of the assembly part 1322 away from the external fixed component, and the protrusion 1329 can be inserted into the exhaust port 113. The protrusion 1329 can allow the airflow to flow more smoothly to the fan 130, reduce airflow pressure loss, and improve the fan 130's airflow guidance efficiency.

[0305] like Figures 3 to 7As shown, this embodiment provides a heat exchange assembly, including a housing 110, a first heat exchanger 120, and a diagonal flow fan. The first heat exchanger 120 is disposed inside the housing 110, which has an air inlet 112 and an air outlet 113. The air outlet 113 is disposed on a first wall 111, and the first heat exchanger 120 is used for heat exchange with external airflow. The diagonal flow fan is disposed at the air outlet 113 and on the outer wall surface of the first wall 111. The path of the airflow driven by the diagonal flow fan forms an exhaust path E. At least a portion of a baffle 1401 is disposed opposite to the air outlet 113, and an exhaust zone F is provided on the outer side of the circumferential edge of the baffle 1401. The exhaust path E passes through the exhaust zone F. Two exhaust vents 113 are provided on the first wall 111, each equipped with a diagonal flow fan. A baffle 1401 is provided on the side of each exhaust vent 113 facing away from the first wall 111. The baffles 1401 at corresponding positions on the two exhaust vents 113 are an integral structure. The diagonal flow fan includes an impeller 1312. Along the axial direction of the exhaust vent 113, a portion of the projection of the baffle 1401 onto the impeller 1312 is located within the radial dimension of the impeller 1312. The heat exchange assembly also includes a first sound-absorbing structure 143, which includes a porous sound-absorbing structure and is located on the side of the baffle 1401 facing the exhaust vents 113. The heat exchange assembly also includes a second sound-absorbing structure 144, which is provided on the wall surface of the first wall 111 facing the baffle 1401. The wall of the housing 110 with the exhaust vent 113 is the first wall 111. A surrounding plate 1402 is connected to the circumferential edge of the first wall 111 facing the baffle 1401. The baffle 1401 is connected to the surrounding plate 1402 via a connecting rod 141. A third sound-absorbing structure 145 is provided on the surrounding plate 1402. The baffle 1401 is made of steel plate. An indicator light 400 can be provided on the baffle 1401. A reinforcing part can be provided on the circumferential edge of the baffle 1401 to improve its strength; the reinforcing part can be a reinforcing rib formed by the concave and convex shapes of the baffle 1401 itself.

[0306] It should be noted that, as Figure 8 and Figure 10 As shown, in this embodiment, the exhaust zone F of the heat exchange assembly can also be provided with a first mesh cover 142. With the first mesh cover 142 provided, the connecting rod 141 can be removed, and the baffle 1401 can be connected to the enclosure 1402 via the first mesh cover 142. It should be noted that, as... Figure 11 As shown, in this embodiment, the two baffles 1401 of the heat exchange assembly can also be spaced apart. Each baffle 1401 is directly opposite the corresponding exhaust port 113. Along the axial direction of the exhaust port 113, the projection of the baffle 1401 onto the impeller 1312 is entirely within the radial dimension of the impeller 1312. A fixing plate for mounting the indicator light 400 can also be provided between the two baffles 1401. It should be noted that... Figure 11The baffle 1401 has a small number of perforations, which are usually small in proportion. In other words, the proportion of perforations is much smaller than the area of ​​the baffle 1401.

[0307] Some embodiments of this application also provide a heat exchange assembly 101, including a compressor 150, a throttling assembly 160, a second heat exchanger 180, a refrigerant pipeline 190, and a heat exchange component. The heat exchange assembly can be the heat exchange assembly proposed in this application or any embodiment of this application. The compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 are connected sequentially through the refrigerant pipeline 190 to form a refrigerant circuit.

[0308] The compressor 150, the throttling assembly 160, and the second heat exchanger 180 can be integrated into the housing 110, or these components can be set independently.

[0309] The heat exchange component 101 in this embodiment has the same beneficial effects as the heat exchange component proposed in this application or any embodiment of this application.

[0310] Some embodiments of this application provide an energy storage device 10, including a housing 11, a battery device 12, and a heat exchange assembly 101. The battery device 12 is housed within the housing 11, and the heat exchange assembly 101 is used to regulate the temperature of the battery device 12. The heat exchange assembly 101 is the heat exchange assembly proposed in this application or any embodiment of this application.

[0311] The heat exchange component 101 can be installed inside the chamber 11 or outside the chamber 11.

[0312] The energy storage device 10 in this embodiment has the same beneficial effects as the heat exchange component proposed in this application or any embodiment of this application.

[0313] Some embodiments of this application also provide an energy storage device 10, including a battery device 12 and a thermal management system 14. The thermal management system 14 is used to regulate the temperature of the battery device 12. The thermal management system 14 includes a second heat exchange circuit 200 and a first heat exchange circuit 100. The second heat exchange circuit 200 is used to exchange heat with the battery device 12. The first heat exchange circuit 100 includes a heat exchange component 101, which can be the heat exchange component 101 proposed in this application or any embodiment of this application. The first heat exchange circuit 100 is used to exchange heat with the second heat exchange circuit 200.

[0314] The first heat exchange circuit 100 and the second heat exchange circuit 200 work together to enable the first heat exchanger 120 to dissipate heat from the battery device 12.

[0315] The energy storage device 10 in this embodiment has the same beneficial effects as the heat exchange component proposed in this application or any embodiment of this application.

[0316] Some embodiments of this application also provide a charging system, including a charging pile. The charging system also includes an energy storage device 10 proposed in this application or any embodiment of this application. The charging pile is electrically connected to the battery device 12 of the energy storage device 10, and the energy storage device 10 is used to provide electrical energy to the charging pile.

[0317] A charging station is an energy replenishment device that provides electricity to electrical devices such as electric vehicles. The energy storage device 10 can be converted into electrical energy to supply power to the charging station by setting up a power conversion device.

[0318] The charging system of this embodiment has the same beneficial effects as the energy storage device 10 proposed in this application or any embodiment of this application.

[0319] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0320] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage device, characterized in that, include: Warehouse body; The battery assembly is housed within the compartment. as well as A heat exchange assembly for regulating the temperature of the battery device, the heat exchange assembly comprising: case; A first heat exchanger, disposed within the housing, is used for heat exchange of the battery device; and A fan, configured to provide axial flow air outlet, is disposed within the housing and is used for heat exchange in the first heat exchanger; The housing includes a first wall and a second wall disposed opposite to each other. The fan is disposed on the first wall. The second wall includes an air outlet and a baffle. The air outlet faces the fan along the thickness direction of the first wall. The baffle surrounds the air outlet. A sound-absorbing structure is disposed between the first wall and the second wall.

2. The energy storage device according to claim 1, characterized in that, The second wall also includes at least one connecting rod, which is disposed at the air outlet and connected to the baffle. And / or, the second wall further includes a first mesh cover, and the air outlet is provided with the first mesh cover; And / or, the second wall further includes an air outlet grille structure, and the air outlet is provided with the air outlet grille structure.

3. The energy storage device according to claim 1 or 2, characterized in that, The circumferential edge of the baffle is connected to the first wall.

4. The energy storage device according to claim 3, characterized in that, The housing also includes a surrounding panel that surrounds the fan, and the first wall is connected to the first wall through the surrounding panel.

5. The energy storage device according to claim 4, characterized in that, The heat exchange assembly is disposed inside the chamber, and the enclosure is configured as a closed structure.

6. The energy storage device according to claim 4 or 5, characterized in that, The sound-absorbing structure is provided on the side of the enclosure facing the fan.

7. The energy storage device according to any one of claims 1-6, characterized in that, The first wall is provided with a plurality of the aforementioned fans, and the baffle is arranged around the plurality of the aforementioned fans.

8. The energy storage device according to any one of claims 1-7, characterized in that, The air outlet is either circular or oval.

9. The energy storage device according to any one of claims 1-8, characterized in that, The baffle is a solid structure.

10. The energy storage device according to any one of claims 1-9, characterized in that, The baffle is made of metal.

11. The energy storage device according to any one of claims 1-10, characterized in that, The air outlet occupies 50% to 70% of the area of ​​the second wall.

12. The energy storage device according to any one of claims 1-11, characterized in that, The length L of the air outlet along the length direction of the second wall is 70%-90% of the length L2 of the second wall; And / or, the width dimension W of the baffle along the width direction of the second wall is 30%-60% of the width dimension W2 of the second wall.

13. The energy storage device according to any one of claims 1-12, characterized in that, The baffle is provided with the sound-absorbing structure on the surface facing the first wall; And / or, the sound-absorbing structure is provided on the side of the first wall facing the second wall.

14. The energy storage device according to any one of claims 1-13, characterized in that, The sound-absorbing structure is configured as a porous sound-absorbing structure and / or a resonant sound-absorbing structure.

15. The energy storage device according to any one of claims 1-14, characterized in that, Along the arrangement direction from the first wall to the second wall, there is a gap between the fan and the baffle.

16. The energy storage device according to any one of claims 1-15, characterized in that, The wind speed at the baffle of the heat exchange component is lower than the wind speed at the air outlet.

17. The energy storage device according to any one of claims 1-16, characterized in that, The fan includes: The air guide ring is installed on the first wall; An impeller assembly includes an impeller and blades. The impeller is cylindrical and surrounds the outer side of the blades, and is fixedly connected to the blades. The two ends of the axial direction of the guide ring are the air inlet and air outlet of the guide ring, respectively. The two ends of the axial direction of the impeller are the air inlet and air outlet of the impeller, respectively. Along the axial direction of the impeller, the air outlet of the guide ring is located inside the air inlet of the impeller. Along the radial direction of the impeller, the guide ring is clearance-fitted with the impeller. The impeller assembly is configured to rotate relative to the guide ring. The impeller is provided with a blocking part, which is configured to protrude from the outer peripheral wall of the impeller.

18. The energy storage device according to any one of claims 1-17, characterized in that, The housing is also provided with an air inlet that communicates with the interior of the housing, and the air inlet is configured with a mesh structure.

19. The energy storage device according to any one of claims 1-18, characterized in that, The heat exchange assembly further includes a compressor, a throttling assembly, a second heat exchanger, and a refrigerant pipeline. The compressor, the first heat exchanger, the throttling assembly, and the second heat exchanger are sequentially connected through the refrigerant pipeline to form a first heat exchange circuit. The energy storage device further includes a second heat exchange circuit, which is used to exchange heat with the battery device. The first heat exchange circuit is used to exchange heat with the second heat exchange circuit. And / or, the heat exchange assembly is located inside or outside the chamber.

20. A charging system, characterized in that, include: Charging stations; as well as According to any one of claims 1-19, the charging pile is electrically connected to the battery device of the energy storage device, and the energy storage device is used to provide electrical energy to the charging pile.

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