Airflow guiding device, heat exchange components, heat exchange equipment, energy storage and charging system

Abstract

An airflow guiding device, heat exchange assembly, heat exchange equipment, energy storage system, and charging system are disclosed. The airflow guiding device includes a guide ring and an impeller assembly. The impeller assembly includes an impeller and blades. The impeller is cylindrical and surrounds the outside of the blades, being fixedly connected to them. The guide ring has an air inlet and an air outlet at its two axial ends, and the impeller has an air inlet and an air outlet at its two axial ends. Along the impeller's axial direction, the air outlet is located inside the impeller's air inlet. Along the impeller's radial direction, the guide ring and impeller are in a clearance fit. The impeller assembly is configured to rotate relative to the guide ring. A stop is provided on the impeller, protruding from the outer peripheral wall of the impeller. The stop can block airflow flowing against the flow outside the impeller, reducing the possibility of airflow backflow and lowering the noise of the airflow guiding device.

Description

Airflow guiding device, heat exchange assembly, heat exchange equipment, energy storage and charging system TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage related equipment, and particularly relates to an airflow guiding device, a heat exchange assembly, a heat exchange equipment, an energy storage and charging system. BACKGROUND

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

[0003] The energy storage device can include a cabinet and a battery, which has a high energy density. The energy storage device can be equipped with a heat exchange equipment to regulate the temperature of the battery. In some technologies, the heat exchange equipment can guide the airflow to flow through the airflow guiding device, thereby improving the heat exchange efficiency. When the heat exchange equipment is working, in addition to the noise generated by the operation of the equipment itself, the flow of the airflow also generates noise, so that the noise of the heat exchange equipment is relatively large. How to reduce the noise of the heat exchange equipment and improve the working environment of the heat exchange equipment and the energy storage device has been a continuous concern in the research and development of the energy storage device.

[0004] SUMMARY

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

[0006] The first aspect of the present application provides an airflow guiding device, comprising a wind guide ring and an impeller assembly, the impeller assembly comprising an impeller and a blade, the impeller is cylindrically arranged, the impeller is arranged on the outer side of the blade and is fixedly connected with the blade, the two ends of the wind guide ring in the axial direction are respectively a wind ring air inlet end and a wind ring air outlet end, the two ends of the impeller in the axial direction are respectively an impeller air inlet end and an impeller air outlet end, along the axial direction of the impeller, the wind ring air outlet end is arranged on the inner side of the impeller air inlet end, along the radial direction of the impeller, the wind guide ring is gap-fitted with the impeller, and the impeller assembly is configured to be able to rotate relative to the wind guide ring; a stop portion is arranged on the impeller, and the stop portion is arranged to protrude from the outer peripheral wall of the impeller.

[0007] In the technical scheme of the embodiment of the application, when the air flow guiding device is in operation, the impeller assembly rotates, and the air flow is pressed from the air guide ring to the air outlet end of the impeller assembly. The air outlet end of the air guide ring is arranged on the inner side of the air inlet end of the impeller, so that the stepped surface formed by the air guide ring and the impeller can avoid the flow path of the air flow, improve the smoothness of the air flow, and reduce the possibility that the air flow generates turbulence and increases noise when the air flow flows from the air guide ring to the impeller and is interfered by the stepped surface. At the same time, the stop portion can stop the air flow flowing in the opposite direction along the outside of the impeller, reduce the possibility that the air flow (air flow flowing out of the air outlet end of the impeller) flows in the opposite direction, passes through the gap between the air guide ring and the impeller, and then enters the impeller again, so that the air flow in the impeller separates and generates turbulence, further reduces the noise of the air flow, and reduces the overall operation noise of the air flow guiding device and the heat exchange equipment applying the air flow guiding device.

[0008] In addition, the air flow guiding device according to the application can further have the following additional technical features.

[0009] In some embodiments of the application, the air inlet end of the impeller is provided with the stop portion. In the air flow guiding device of the embodiment, the stop portion can directly stop and interfere with the air flow flowing back to the air inlet end of the impeller, reduce the air flow flowing back to the impeller assembly from the air outlet end of the impeller through the air inlet end of the impeller, and reduce the operation noise of the air flow guiding device.

[0010] In some embodiments of the application, the stop portion and the impeller are in an integrated structure. In the embodiment, the stop portion and the impeller are in an integrated structure, and the stop portion and the outer peripheral wall of the impeller can be seamlessly connected, thereby improving the stopping effect of the stop portion on the air flow.

[0011] In some embodiments of the application, the stop portion is arranged in a closed loop around the outer peripheral wall along the circumference of the impeller. In the air flow guiding device of the embodiment, the stop portion can stop the air flow at any position along the circumference of the impeller, reduce the possibility that the air flow flowing out of the air outlet end of the impeller flows back to the impeller assembly through the air inlet end of the impeller, and reduce the operation noise of the air flow guiding device.

[0012] In some embodiments of the present application, the stop portion comprises a first stop segment, one end of the first stop segment is connected with the outer peripheral wall, and the first stop segment is arranged to protrude from the outer peripheral wall in the radial direction of the impeller, or the first stop segment is arranged to gradually approach the air outlet end of the impeller from the end connected with the outer peripheral wall to the end away from the outer peripheral wall. In this embodiment of the airflow guiding device, the first stop segment is substantially perpendicular to the outer peripheral wall (the outer peripheral wall of the impeller), or the first stop segment is arranged to gradually approach the air outlet end of the impeller, and the stop angle between the protruding direction of the first stop segment and the flow direction of the airflow flowing countercurrently from the air outlet end of the impeller is less than or equal to 90 degrees, so that the countercurrent airflow can be better stopped, the possibility of the airflow discharged from the air outlet end of the impeller flowing back to the impeller assembly through the air inlet end of the impeller is further reduced, and the operation noise of the airflow guiding device is reduced.

[0013] In some embodiments of the present application, the stop portion comprises a first stop segment, which is arranged to be folded from the outer peripheral wall of the impeller to the radial outside in the radial direction of the impeller. The first stop segment is folded from the outer peripheral wall of the impeller, which has a simple structure, and the outer peripheral wall of the impeller and the first stop segment are integrated, so that the possibility of the airflow flowing countercurrently from the connection between the outer peripheral wall of the impeller and the first stop segment is reduced, the possibility of the airflow discharged from the air outlet end of the impeller flowing back to the impeller assembly through the air inlet end of the impeller is further reduced, and the operation noise of the airflow guiding device is reduced.

[0014] In some embodiments of the present application, the stop portion further comprises a second stop segment, one end of the first stop segment away from the outer peripheral wall is connected with one end of the second stop segment, and the second stop segment is located on the side of the first stop segment close to the air outlet end of the impeller in the axial direction of the impeller, the second stop segment is arranged at an acute angle, a right angle or an obtuse angle with the first stop segment, and the second stop segment is arranged in spaced relation with the outer peripheral wall. The second stop segment is located on the side of the first stop segment close to the air outlet end of the impeller, and the second stop segment is arranged in spaced relation with the outer peripheral wall (the outer peripheral wall of the impeller), so that the second stop segment can cooperate with the first stop segment to form a stop groove with an opening facing the air outlet end of the impeller, the stop effect on the airflow flowing countercurrently from the air outlet end of the impeller can be further improved under the limiting action of the second stop segment, the possibility of the airflow discharged from the air outlet end of the impeller flowing back to the impeller assembly through the air inlet end of the impeller is further reduced, and the operation noise of the airflow guiding device is reduced.

[0015] In some embodiments of the present application, the stopper further comprises a second stopper section, which is arranged to be folded by an outer end of the first stopper section along the radial direction of the impeller to the axial direction of the impeller. The second stopper section is formed by folding the first stopper section, which is simple in structure and convenient to process. Moreover, the connection between the second stopper section and the first stopper section is an integral structure, which reduces the possibility of backflow of air flow from the connection between the second stopper section and the first stopper section, further reduces the possibility of backflow of air flow from the air outlet end of the impeller to the air inlet end of the impeller, and reduces the operating noise of the air flow guiding device.

[0016] In some embodiments of the present application, the flow passage cross section of the air guide ring is arranged to be tapered along the direction from the air inlet end of the air guide ring to the air outlet end of the air guide ring. The structure of the air guide ring of the air flow guiding device of the present embodiment can play a good guiding effect, while reducing the flow rate of air flow (air flow from the air outlet of the impeller) that backflows through the gap between the air guide ring and the impeller at the connection and reenters the impeller, thereby reducing noise.

[0017] In some embodiments of the present application, along the axial direction of the impeller, both ends of the blade do not exceed the end face of the corresponding end of the impeller.

[0018] In some embodiments of the present application, along the axial direction of the impeller, the distance between the blade and the end face of the air outlet end of the impeller is a first size, and the distance between the blade and the end face of the air inlet end of the impeller is a second size, and the first size is smaller than the second size. The second size L is larger, which can provide assembly space for the air guide ring, so that the air guide ring can be inserted into the air inlet end of the impeller without interfering with the blade in the axial direction, and the first size is smaller, which can make the air outlet end of the impeller have a higher air flow pressure, which is conducive to promoting the rapid flow of air flow.

[0019] In some embodiments of the present application, the air guide ring further comprises an assembly portion, and the outer wall surface of the air inlet end of the air guide ring is connected with the assembly portion, which extends outward along the radial direction of the impeller, and is used to be connected with an external fixing member. In this embodiment, the air guide ring can be fixed to the external fixing member more conveniently by arranging the assembly portion.

[0020] In some embodiments of the present application, the air flow guiding device further comprises a fixing assembly, and the impeller assembly is installed on the assembly portion through the fixing assembly. In this embodiment, the air guide ring is arranged on the assembly portion, and the impeller assembly is installed on the assembly portion, so that the air guide ring and the impeller assembly are integrated, which is simple in structure. By connecting the assembly portion with the external fixing member, the whole air flow guiding device can be fixed to the external fixing member, which is convenient to operate.

[0021] In some embodiments of the present application, the airflow guiding device further comprises a driving member, the impeller assembly further comprises a wheel shaft, the wheel shaft is arranged in the impeller, the blades are connected to the wheel shaft, and the driving member is connected to one end of the wheel shaft away from the air ring.

[0022] In some embodiments of the present application, the wheel shaft is provided with a mounting cavity, and the driving member is arranged in the mounting cavity. The driving member is arranged to drive the wheel shaft to rotate the impeller assembly. In this embodiment of the airflow guiding device, the driving member is at least partially arranged in the mounting cavity, so that the volume of the airflow guiding device is small, the cost is saved, and the driving member is substantially arranged in the mounting cavity, which can reduce the damage of rainwater and the like to the driving member and improve the reliability of the driving member.

[0023] In some embodiments of the present application, the airflow guiding device further comprises a protective mesh cover, and the protective mesh cover is arranged on the outer side of the impeller assembly along the radial direction of the impeller. By arranging the protective mesh cover, the air outlet requirement of the airflow guiding device can be met, the entry of foreign matters into the airflow guiding device can be reduced, the reliability of the airflow guiding device can be improved, and the risk of accidental injury of the operator by the airflow guiding device can be reduced.

[0024] In some embodiments of the present application, along the axial direction of the impeller, the cover body part comprises a protruding part protruding from the assembly part, the protruding part is used for inserting into the air vent of the external fixing member, and the protruding part is arranged as the air inlet end of the air ring. When the airflow guiding device is assembled with the external fixing member (which can be understood as a housing or a first wall), the assembly part can be attached to the wall of the external fixing member, the impeller assembly is located on the side of the assembly part away from the external fixing member, the external fixing member is provided with an air vent, and the protruding part can be inserted into the air vent. The protruding part can make the airflow flow to the airflow guiding device more smoothly, reduce the pressure loss of the airflow, and improve the guiding efficiency of the airflow guiding device to the airflow.

[0025] The second aspect of the present application provides a heat exchange assembly comprising a housing and a first heat exchanger, the heat exchange assembly further comprising the airflow guiding device provided by the present application or any embodiment of the present application, the housing being provided with an air vent; the first heat exchanger is arranged in the housing; the airflow guiding device is arranged at the air vent, the air ring is fixedly connected to the housing, and the airflow guiding device is used for guiding the airflow to flow through the first heat exchanger.

[0026] The heat exchange assembly of this embodiment has the same beneficial effects as the airflow guiding device provided by the present application or any embodiment of the present application.

[0027] The third aspect of the present application provides a heat exchange device, the heat exchange device comprising a compressor, a throttling assembly, a second heat exchanger, a refrigerant pipeline and a heat exchange assembly, the heat exchange assembly being the heat exchange assembly according to the present application or any of the embodiments of the present application, the compressor, the first heat exchanger, the throttling assembly and the second heat exchanger being connected in sequence through the refrigerant pipeline.

[0028] The heat exchange device of the present embodiment has the same beneficial effects as the heat exchange assembly according to the present application or any of the embodiments of the present application.

[0029] The fourth aspect of the present application provides an energy storage system comprising a battery and a thermal management system, the thermal management system being configured to adjust the temperature of the battery; wherein the thermal management system comprises a first heat exchange loop and a second heat exchange loop, the first heat exchange loop comprising a heat exchange assembly or a heat exchange device, the heat exchange device being the heat exchange device according to the present application or any of the embodiments of the present application, the heat exchange assembly being the heat exchange assembly according to the present application or any of the embodiments of the present application, the first heat exchange loop being configured to exchange heat with the second heat exchange loop, the second heat exchange loop being configured to exchange heat with the battery. The energy storage system of the present embodiment has the same beneficial effects as the heat exchange assembly according to the present application or any of the embodiments of the present application.

[0030] In addition, the energy storage system according to the present application can further have the following additional technical features:

[0031] In some embodiments of the present application, the energy storage system further comprises a cabinet configured to accommodate the battery, the heat exchange assembly being arranged inside or outside the cabinet.

[0032] The fifth aspect of the present application provides a charging system comprising a charging pile, the charging system further comprising an energy storage system according to the present application or any of the embodiments of the present application, the charging pile being electrically connected to the battery of the energy storage system, the energy storage system being configured to provide electric energy for the charging pile.

[0033] The charging system of the present application has the same beneficial effects as the heat exchange device according to the present application or any of the embodiments of the present application.

[0034] The above description is only a summary of the technical solutions of the present application, in order to enable the technical means of the present application to be more clearly understood, the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art, upon reading the following detailed description of the preferred embodiments. The accompanying drawings are intended to depict only preferred embodiments of the application, and therefore should not be considered to narrow the scope of the present application. Additionally, like reference numerals are intended to represent similar components, portions and features in the various drawings and embodiments. In the drawings:

[0036] FIG. 1 is a schematic diagram of an energy storage system according to some embodiments of the present application;

[0037] FIG. 2 is a schematic diagram of a portion of an energy storage system according to some embodiments of the present application;

[0038] FIG. 3 is a schematic diagram of a thermal management system according to some embodiments of the present application;

[0039] FIG. 4 is a schematic diagram of a portion of a heat exchange device according to some embodiments of the present application;

[0040] FIG. 5 is a schematic diagram of a portion of a heat exchange device according to some embodiments of the present application;

[0041] FIG. 6 is a schematic diagram of a portion of an airflow guide according to some embodiments of the present application;

[0042] FIG. 7 is a schematic diagram of a portion of an airflow guide according to some embodiments of the present application;

[0043] FIG. 8 is a schematic diagram of a portion of an airflow guide according to some embodiments of the present application;

[0044] FIG. 9 is a schematic diagram of an assembly of a wind guide ring and an impeller assembly according to some embodiments of the present application;

[0045] FIG. 10 is a schematic diagram of a portion of an impeller assembly according to some embodiments of the present application;

[0046] FIG. 11 is a schematic diagram of a portion of an impeller assembly according to some embodiments of the present application;

[0047] FIG. 12 is a schematic diagram of a portion of an impeller assembly according to some embodiments of the present application;

[0048] FIG. 13 is a schematic diagram of a portion of an impeller assembly according to some embodiments of the present application;

[0049] FIG. 14 is a schematic diagram of a portion of an impeller assembly according to some embodiments of the present application;

[0050] FIG. 15 is a schematic diagram of a portion of an airflow guide according to some embodiments of the present application.

[0051] The reference signs in the detailed description are as follows: 10, energy storage system; 11, cabinet body; 12, battery; 13, bracket; 14, thermal management system; 15, containing space; 100, first heat exchange circuit; 101, heat exchange device; 110, shell; 111, first wall; 112, air inlet; 113, air outlet; 114, mesh structure; 115, frame; 120, first heat exchanger; 130, air flow guiding device; 131, impeller assembly; 1311, wheel shaft; 1312, impeller; 1313, blade; 1314, mounting cavity; 1315, transmission part; 1316, impeller air inlet end; 1317, impeller air outlet end; 132, air guide ring; 1321, cover part; 1322, assembly part; 1323, first air guide section; 1324, second air guide section; 1325, air ring air inlet end; 1326, air ring air outlet end; 1327, first sub-section; 1328, second sub-section; 1329, convex part; 133, fixing assembly; 1330, connecting frame; 1331, first connecting part; 1332, second connecting part; 1333, connecting plate; 1334, positioning ring plate; 134, driving part; 1341, connecting block; 1342, power supply line assembly; 1343, driving output end; 1344, nut assembly; 1345, limiting part; 135, protective mesh cover; 1351, assembly hole; 136, stop part; 1361, first stop section; 1362, second stop section; 150, compressor; 160, throttling assembly; 180, second heat exchanger; 190, refrigerant pipeline; 200, second heat exchange circuit; 210, heat exchange part; 220, circulating pipeline; 230, driving assembly; 300, heating assembly. DETAILED DESCRIPTION

[0052] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0054] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.

[0055] Reference herein to "embodiments" means that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily a separate or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0056] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0057] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0058] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0059] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing", and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0060] A battery can store electric energy and power an electric device. With the development of new energy, energy storage devices with batteries are gradually widely used due to their large electric energy storage capacity. An energy storage device can include a cabinet body, and the battery is arranged in the cabinet body. The number of batteries is usually multiple.

[0061] Temperature has a great influence on the performance of the battery. Too low temperature will reduce the activity of the battery and may cause the battery to be unable to charge and discharge. Too high temperature will have the risk of causing thermal runaway. The energy storage device is usually configured with a thermal management system to regulate the temperature of the battery in the energy storage device.

[0062] In some energy storage devices, the thermal management system regulates the temperature of the battery through a refrigerant heat exchange device, for example, a water chiller can be used to cool the battery in cooperation with a corresponding device. The refrigerant heat exchange device generally includes a compressor, a condenser, a throttling component and an evaporator connected through a refrigerant pipeline. Taking the cooling of the battery as an example, the evaporator is used for heat exchange with the battery to reduce the temperature of the battery. For example, the evaporator can be directly in contact with the battery for heat exchange. For another example, the evaporator can exchange heat with the environment where the battery is located, or the evaporator can exchange heat with the cooling water system connected to the battery to cool the battery through the cooling water system. The condenser is used for heat exchange with air. In order to improve the refrigeration effect, the condenser is usually provided with an air flow guiding device such as a fan. The air flow guiding device can accelerate the flow of air flow to improve the heat exchange efficiency between the condenser and the air flow (air flow). Among them, the air flow guiding device guides the flow of air flow, not only needs to absorb the heat generated at the end of the battery, and dissipate the heat to the outside, but also needs to dissipate the heat generated by the refrigerant heat exchange device itself (such as the work of the compressor). Therefore, the air volume demand of the air flow guiding device is large, the operating power of the air flow guiding device is increased, and the noise of the operation of the air flow guiding device and the noise formed by the flow of air flow are large.

[0063] How to reduce the noise of the refrigerant heat exchange device and make the energy storage device have a good operating environment has always been the focus of the research and development of energy storage devices. In some technologies, an air guide ring is arranged at the air inlet of the air flow guiding device. The air flow guiding device guides the air flow to be pressed to the air outlet end of the air flow guiding device by the rotating impeller. Research shows that the noise generated in the process of the air flow flowing in the similar air flow guiding device is large.

[0064] Further research found that the rotating impeller rotates relative to the air guide ring, so there is a gap at the connection between the rotating impeller and the air guide ring. Due to the work done by the rotating impeller on the airflow, the pressure of the airflow at the outlet (outlet end) of the airflow guide device is often higher than the pressure at the air guide ring. The airflow will flow from the high pressure to the low pressure in response to the pressure. Part of the airflow at the outlet of the airflow guide device will flow backward from the outside of the airflow guide device. The backward airflow will flow back to the inside of the airflow guide device through the gap at the connection between the rotating impeller and the air guide ring. These backward airflows will interact with the airflows introduced by the air guide ring, causing turbulence of the airflows inside the airflow guide device. This airflow turbulence is an important factor causing the large operating noise of the airflow guide device.

[0065] To solve the problem of large operating noise of the airflow guide device caused by airflow backward flow, the present application provides an airflow guide device. The airflow guide device includes an air guide ring and an impeller assembly. One end of the impeller assembly is connected to the air guide ring. A stop portion is arranged on the outer peripheral wall of the impeller assembly. The stop portion can stop the airflow flowing backward along the outside of the impeller, reduce the possibility of the airflow (airflow flowing out of the outlet of the impeller assembly) flowing backward again through the gap at the connection between the air guide ring and the impeller assembly, and causing separation and turbulence of the airflows inside the impeller. The noise of the airflow flow is reduced, and the overall operating noise of the airflow guide device and the heat exchange equipment using the airflow guide device is reduced.

[0066] The airflow guide device of the present embodiment can be applied to a heat exchange equipment, which can be a water chiller. The airflow guide device and the heat exchange equipment proposed in the present application or any embodiment of the present application can be applied to an energy storage system for temperature regulation of a battery in the energy storage system. For example, the heat exchange equipment can be combined with a cooling medium circulating device to form a battery thermal management system, and heat exchange with the battery through the cooling medium circulating device. For another example, the heat exchange equipment can be used independently, and directly heat-exchanged with the battery in the energy storage system, or directly heat-exchanged with the air in the cabinet of the energy storage system to reduce the temperature in the cabinet. The airflow guide device and the heat exchange equipment proposed in the present application or any embodiment of the present application can also be used in an electric device for temperature regulation of a battery in the electric device, wherein the electric device can be but is not limited to an electric vehicle, an electric train, an electric bicycle, a golf cart, a drone or a ship. The heat exchange equipment proposed in the present application or any embodiment of the present application can also be applied to a non-battery product or a non-battery related environment that needs to be temperature regulated, for temperature regulation of the non-battery product or the non-battery related environment. For example, the airflow guide device or the heat exchange equipment can be applied to an air conditioner for indoor temperature regulation.

[0067] For ease of description, the heat exchange equipment is applied to an energy storage system in the embodiments of the present application.

[0068] FIG. 1 is a schematic diagram of an energy storage system according to some embodiments of the present application, and FIG. 2 is a schematic diagram of a partial structure of an energy storage system according to some embodiments of the present application. As shown in FIGS. 1 and 2, the energy storage system 10 according to the present embodiment includes a cabinet 11, a battery 12, and a thermal management system 14. The cabinet 11 is provided with a bracket 13 inside.

[0069] The cabinet 11 can be shaped as needed. The cabinet 11 can be provided with an opening along one side in the horizontal direction to facilitate assembly and maintenance of the battery 12. The opening can be provided with a closable door or can be left without a door. As shown in FIG. 2, the bracket 13 is connected to the cabinet 11, and can be an integral structure with the cabinet 11 or can be fixedly connected to the cabinet 11 by bolts or the like. The battery 12 inside the cabinet 11 can be multiple. The cabinet 11 can be provided with multiple rows of batteries 12 in the horizontal direction or can be provided with one row of batteries 12. Each row of batteries 12 can be stacked on the bracket 13 from top to bottom inside the cabinet 11.

[0070] The battery 12 can include a box body and battery cells accommodated in the box body. The battery 12 can be supported on the bracket 13. In each battery 12, the battery cells can be multiple. The multiple battery cells can be connected in series, in parallel, or in a mixed connection. The mixed connection means that the multiple battery cells are connected in series and in parallel. The multiple battery cells can be directly connected in series, in parallel, or in a mixed connection, and the whole of the multiple battery cells is accommodated in the box body. Alternatively, the battery 12 can be in the form of a battery module in which multiple battery cells are connected in series, in parallel, or in a mixed connection, and multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, which is accommodated in the box body. The battery 12 can further include other structures. For example, the battery 12 can further include a busbar component for electrically connecting the multiple battery cells. Each battery cell can be a secondary battery or a primary battery. The battery cell can be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes.

[0071] The thermal management system 14 can be used to regulate the temperature of the battery 12. Specifically, the thermal management system 14 can only be used to regulate the temperature of the battery 12 to be raised. The thermal management system 14 can only be used to regulate the temperature of the battery 12 to be lowered. The thermal management system 14 can be used to regulate the temperature of the battery 12 to be raised and to be lowered. The thermal management system 14 can be adaptively controlled according to the current temperature of the battery 12.

[0072] FIG. 3 is a schematic diagram of a thermal management system according to some embodiments of the present application. As shown in FIG. 3, the thermal management system 14 can include a first heat exchange circuit 100 and a second heat exchange circuit 200. The second heat exchange circuit 200 is used to exchange heat with the battery 12. The first heat exchange circuit 100 is used to exchange heat with the second heat exchange circuit 200.

[0073] The first heat exchange circuit 100 comprises a heat exchange device 101, which can comprise a compressor 150, a first heat exchanger 120, a throttling assembly 160 and a second heat exchanger 180 connected in series through a refrigerant pipeline 190. The second heat exchange circuit 200 can cool the medium circulating device.

[0074] The cabinet 11 is provided with a receiving space 15 on one side of the bracket 13, and the heat exchange device 101 can be installed in the receiving space 15. Alternatively, the heat exchange device 101 can also be installed outside the cabinet 11 of the energy storage system 10. As shown in FIG. 4 and FIG. 5, the heat exchange device 101 can further comprise a shell 110. The compressor 150, the first heat exchanger 120, the throttling assembly 160, the second heat exchanger 180 and the airflow guiding device 130 can all be arranged in the shell 110, or some components of the heat exchange device 101 can be arranged in the shell 110 and some components can be arranged outside the shell 110. Alternatively, when the heat exchange device 101 is installed outside the cabinet 11, the first heat exchanger 120 and the airflow guiding device 130 and other components that exchange heat with the external environment can be arranged in the shell 110; the compressor 150 can be arranged in the shell 110 outside the cabinet 11; or all components of the heat exchange device 101 can be arranged in the shell 110 outside the cabinet 11.

[0075] The shell 110 is provided with an air inlet 112 and an air outlet 113. The air inlet 112 is used for air to flow into the shell 110, and the air outlet 113 is used for air to flow out of the shell 110. The shell 110 is arranged in the receiving space 15, and the cabinet 11 is provided with a communication port which communicates with the receiving space 15, so that the air outlet 113 and the air inlet 112 of the shell 110 communicate with the outside of the cabinet 11 through the communication port. The communication port can be provided with a mesh structure.

[0076] The first heat exchanger 120 can be used for heat exchange with air, i.e., heat exchange with the 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, in the case where the battery 12 needs to be heated to increase the temperature of the battery 12, the first heat exchanger 120 is used as an evaporator, and the second heat exchanger 180 is used as a condenser; in the case where the battery 12 needs to be cooled to reduce the temperature of the battery 12, the first heat exchanger 120 is used as a condenser, and the second heat exchanger 180 is used as an evaporator. The heat exchange device 101 can also be provided with a corresponding valve control assembly, so that the first heat exchanger 120 and the second heat exchanger 180 are switched under different working conditions.

[0077] The compressor 150 is a driven fluid machine that lifts low-pressure gas to high-pressure gas. It sucks in low-temperature and low-pressure refrigerant from its refrigerant inlet, compresses it by driving the piston through the motor, and discharges high-temperature and high-pressure refrigerant to its refrigerant outlet, providing power for the refrigerant circulation. Refrigerant, also known as refrigerant, snow species, etc., is a medium substance used to complete energy conversion in various heat engines.

[0078] The first heat exchanger 120 is provided with a refrigerant passage for the refrigerant to flow through. When the refrigerant flows through the first heat exchanger 120, it can exchange heat with the air outside the first heat exchanger 120. As shown in FIG. 3, in order to improve the heat exchange efficiency of the first heat exchanger 120 and the air, the heat exchange device 101 can also be provided with an air flow guiding device 130, which can be used to guide the air flow to flow through the first heat exchanger 120. The air flow guiding device 130 can be a fan, specifically an axial fan, a mixed flow fan, etc. Among them, the mixed flow fan is also called a mixed flow fan, which is a fan between the axial fan and the centrifugal fan. The impeller of the mixed flow fan makes the air do both centrifugal and axial motion, and the motion of the air is a mixture of axial and centrifugal motion.

[0079] The second heat exchanger 180 is provided with a refrigerant passage for the refrigerant to flow through. When the refrigerant flows through the second heat exchanger 180, heat exchange can be performed with the cooling medium in the second heat exchanger 180. The position of the second heat exchanger 180 can correspond to the first medium containing member, and the first medium containing member is in communication with the second heat exchange circuit 200, and the refrigerant in the second heat exchanger 180 exchanges heat with the cooling medium in the first medium containing member. Optionally, in some embodiments, the second heat exchanger 180 is provided with a medium passage, which can serve as the first medium containing member, and the inlet and outlet of the medium passage are in communication with the outlet and inlet of the second heat exchange circuit 200 respectively to form a circulation loop of the cooling medium. The medium passage and the refrigerant passage are independent of each other, and the cooling medium in the medium passage exchanges heat with the refrigerant to achieve heat exchange between the second heat exchanger 180 and the cooling medium. Optionally, in another embodiment, the first medium containing member can be a liquid storage tank, a liquid storage tank, a communication pipe, etc., and the second heat exchanger 180 can be arranged in the first medium containing member, and the refrigerant in the second heat exchanger 180 exchanges heat with the cooling medium in the first medium containing member. The first heat exchanger 120 and the second heat exchanger 180 can be plate heat exchangers, fin heat exchangers, etc.

[0080] The second heat exchange circuit 200 includes a circulation pipeline 220 and a heat exchange member 210. The heat exchange member 210 is a member that can conduct heat, which can be a water cooling plate. The cooling medium exchanges heat with the battery 12 through the heat exchange member 210. The heat exchange member 210 can be arranged outside the battery 12 and can be arranged in close contact with the battery 12 to facilitate heat exchange between the battery 12 and the heat exchange member 210. The heat exchange member 210 can also be arranged inside the battery 12, for example, between adjacent battery cells in the battery 12. The heat exchange member 210 can also be part of the box of the battery 12, i.e., part of the box as the heat exchange member 210.

[0081] The heat exchange member 210 is provided with a medium passage, and the inlet and outlet of the medium passage of the heat exchange member 210 are connected with the circulation pipeline 220. The circulation pipeline 220 can be provided with a driving assembly 230 for driving the cooling medium to flow from the corresponding first medium containing member of the second heat exchanger 180 to the heat exchange member 210, and then back to the corresponding first medium containing member of the second heat exchanger 180 through the heat exchange member 210. The cooling medium can be a liquid such as water, etc., and can also be a gas or other flowable substance.

[0082] The throttling assembly 160 is used to throttle the refrigerant to change the pressure, etc., which can play a role in throttling, pressure reduction and flow regulation. The throttling assembly 160 can be an expansion valve.

[0083] Referring to FIG. 3, in some embodiments, the first heat exchanger 120 of the heat exchange device 101 is used as a condenser, and the second heat exchanger 180 is used as an evaporator, that is, the refrigerant pipeline 190 is sequentially connected in series with the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 to form a refrigerant circuit (the present embodiment is mainly described by taking the refrigerant circuit as a cooling circuit), which can be used for refrigeration, for example, as a part of a water chiller. The general working principle of the heat exchange device 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 member 210 outside the battery to absorb the heat generated by the battery 12, the temperature of the cooling medium is increased, and the cooling medium enters the second heat exchanger 180. The cooling medium is absorbed by the refrigerant evaporated in the second heat exchanger 180, and the refrigerant after evaporation and absorption is driven back to the compressor 150 in the refrigerant circuit for compression to form a high-temperature and high-pressure state, and then passes through the condenser (the first heat exchanger 120) for condensation and heat dissipation to form a medium-temperature and high-pressure state. The condenser (the first heat exchanger 120) dissipates the generated heat to the environment through the fan (air flow guiding device 130), and the medium-temperature and high-pressure state refrigerant passes through the expansion valve (throttling assembly 160) to form a low-temperature and low-pressure two-phase state refrigerant and returns to the second heat exchanger 180 to form a cycle.

[0084] Continuing to refer to FIG. 3, the heat exchange device 101 can further be provided with a heating assembly 300. The heating assembly 300 can heat the cooling medium. The circulation pipeline 220 is in communication with the heating assembly 300, and the heating assembly 300 can be started when heating of the battery 12 is required. The heating assembly 300 can include an electric heating member and a second medium containing member. The second medium containing member can be a pipe, a tank, a box, or the like, which can be connected in the circulation pipeline 220. The electric heating member is arranged in the second medium containing member and is used for heating the cooling medium in the second medium containing member. The electric heating member can be a PTC heating body. The PTC heating body, also called a PTC heater, is a kind of electric heater using a PTC material. The PTC heating body can be composed of a PTC ceramic heating element and an aluminum pipe. The PTC heating body has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and power-saving electric heater.

[0085] It should be noted that the scheme of arranging the heating assembly 300 in the heat exchange device 101 can be combined with the scheme of the refrigerant circuit of the heat exchange device 101 for refrigeration. The second medium containing part of the heating assembly 300 is arranged in parallel with the first medium containing part corresponding to the second heat exchanger 180 in the circulation pipeline 220. In some implementations, when the heat exchange device 101 is in use, the second medium containing part of the heating assembly 300 and the second heat exchanger 180 and the second heat exchange circuit 200 can be selectively connected to the circulation pipeline 220. Specifically, this can be achieved by arranging a valve control assembly (such as a switch proportional valve, an electromagnetic valve, etc.) on the circulation pipeline 220, that is, when it is necessary to heat the battery 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 is started, the circulation pipeline 220 is connected to the first medium containing part corresponding to the second heat exchanger 180, the heating assembly 300 is closed, and the circulation pipeline 220 is disconnected from the first medium containing part of the heating assembly 300, and the second heat exchange circuit 200 delivers the cooling medium heat-exchanged by the second heat exchanger 180 to the heat exchange part 210 corresponding to the battery 12 to cool the battery 12, and the cooling medium is delivered back to the second heat exchanger 180 after passing through the heat exchange part 210; when it is necessary to cool the battery 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 is stopped, the circulation pipeline 220 is disconnected from the first medium containing part corresponding to the second heat exchanger 180, the heating assembly 300 is opened, and the circulation pipeline 220 is connected to the second medium containing part of the heating assembly 300, and the second heat exchange circuit 200 delivers the cooling medium heated by the heating assembly 300 to the heat exchange part 210 corresponding to the battery 12 to heat the battery 12, and the cooling medium is delivered back to the heating assembly 300 after passing through the heat exchange part 210. In other implementations, when the heat exchange device 101 is in use, the second medium containing part of the heating assembly 300 and the second heat exchanger 180 and the second heat exchange circuit 200 can also be connected to the circulation pipeline 220, and when it is necessary to heat the battery 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 is started, the heating assembly 300 is closed, and when it is necessary to cool the battery 12, the refrigerant circuit formed by the compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 is stopped, and the heating assembly 300 is opened.

[0086] It should be further noted that the heat management system 14 of the embodiment can also include temperature sensors and the like, for example, a temperature sensor can be arranged on the battery 12 to detect the temperature of the battery 12; a temperature sensor can be arranged in the cabinet 11 in which the battery 12 is located to detect the temperature in the cabinet 11 in which the battery 12 is located; a temperature sensor can be arranged outside the cabinet 11 to detect the temperature of the external environment. The second heat exchange circuit can be provided with a temperature sensor and a pressure sensor to detect the temperature and flow pressure of the refrigerant, and the second heat exchange circuit can also be provided with a temperature sensor and a pressure sensor to detect the temperature and flow pressure of the cooling medium. The energy storage system 10 can adaptively control the heat exchange device 101 based on the detected temperature of the temperature sensors and the like to adjust the temperature of the battery 12. Specifically, the operation control of the heat exchange device 101 can be performed by the controller of the energy storage system 10, or a separate controller can be arranged in the heat management system 14, and the separate controller can control the operation of the heat exchange device 101.

[0087] As shown in FIGS. 6-12, FIG. 6 is a structural schematic diagram of the airflow guide device from one perspective according to some embodiments of the present application, FIG. 7 is a structural schematic diagram of the airflow guide device from another perspective according to some embodiments of the present application, FIG. 8 is a cross-sectional schematic diagram of the airflow guide device according to some embodiments of the present application, FIG. 9 is an assembly cross-sectional view of the air guide ring 132 and the impeller assembly according to some embodiments of the present application, FIG. 10 is a structural schematic diagram of the impeller assembly from one perspective according to some embodiments of the present application, FIG. 11 is a structural schematic diagram of the impeller assembly from another perspective according to some embodiments of the present application, and FIG. 12 is a cross-sectional schematic diagram of the impeller assembly according to some embodiments of the present application. The present embodiment proposes an airflow guide device 130, which includes an air guide ring 132 and an impeller assembly 131. The impeller assembly 131 includes an impeller 1312 and a blade 1313. The impeller 1312 is cylindrically arranged and surrounds the outside of the blade 1313 and is fixedly connected with the blade 1313. The axial ends of the air guide ring 132 are respectively an air ring air inlet end 1325 and an air ring air outlet end 1326. The axial ends of the impeller 1312 are respectively an impeller air inlet end 1316 and an impeller air outlet end 1317. Along the axial direction of the impeller 1312, the air ring air outlet end 1326 is arranged inside the impeller air inlet end 1316. Along the radial direction of the impeller 1312, the air guide ring 132 is gap-fitted with the impeller 1312. The impeller assembly 131 is configured to be rotatable relative to the air guide ring 132.

[0088] The air guide ring 132 can guide the air flow, and the air guide ring 132 can be connected with an external fixing member (for example, the shell 110 of the heat exchange device 101, etc.) to fix the air flow guiding device 130 to the external fixing member. The air guide ring 132 is a substantially cylindrical structure, and a channel for the air flow is formed in the air guide ring 132. Specifically, the air guide ring 132 can be a cylindrical structure with a substantially circular or elliptical cross section, or a cylindrical structure with a polygonal or irregular cross section. The two axial ends of the air guide ring 132 are throughly arranged, and the two axial ends of the air guide ring 132 are the air ring air inlet end 1325 and the air ring air outlet end 1326, respectively. The air flow can flow from the air ring air inlet end 1325 to the air ring air outlet end 1326 along the inside of the air guide ring 132.

[0089] The impeller assembly 131 guides the air flow by rotating, and the flow direction of the air flow can be understood with reference to the arrow C. The impeller 1312 is cylindrically arranged, that is, the impeller 1312 is at least partially a substantially cylindrical structure. For example, the impeller 1312 can be a substantially circular cylindrical structure. Of course, the impeller 1312 can also be processed into other shapes of cylindrical structure according to needs. The side wall of the impeller 1312 can be closed to reduce the possibility of air flow leaking from the side wall of the impeller 1312 and easily flowing back to the impeller air inlet end 1316. The two axial ends of the impeller 1312 are throughly arranged, and a flow channel for the air flow is formed in the impeller 1312. The two axial ends of the impeller 1312 are the impeller air inlet end 1316 and the impeller air outlet end 1317, respectively. The air flow can flow from the air inlet end of the impeller 1312 to the air outlet end 1317 along the inside of the impeller 1312. The blade 1313 can be a sheet or plate structure, and the blade 1313 can be provided in one or more pieces. The blade 1313 can be arranged in the air guide ring 132 and fixedly connected with the inner circumferential wall of the air guide ring 132.

[0090] It can be understood that the flow direction of the air flow in the air guide ring 132 and the impeller assembly 131 can be substantially understood with reference to the axial direction of the air guide ring 132 and the axial direction of the impeller 1312. Optionally, the axial direction of the air guide ring 132 and the axial direction of the impeller 1312 can be substantially coaxially arranged. The radial direction of the air guide ring 132 is substantially perpendicular to the axial direction of the air guide ring 132, that is, substantially perpendicular to the direction of the air flow in the air guide ring 132. The radial direction of the impeller 1312 is substantially perpendicular to the axial direction of the impeller 1312, that is, substantially perpendicular to the direction of the air flow in the impeller 1312.

[0091] As shown in FIG. 8 and FIG. 9, the air ring outflow end 1326 is arranged inside the impeller inflow end 1316, so that the air ring outflow end 1326 is in communication with the impeller inflow end 1316. The air ring outflow end 1326 is arranged inside the impeller inflow end 1316, that is, the impeller inflow end 1316 is sleeved outside the air ring 132, and the connection between the air ring outflow end 1326 and the impeller inflow end 1316 forms a stepped surface. The stepped surface in the airflow flow path (i.e., the end surface of the air ring outflow end 1326) is oriented in the same direction as the airflow flow direction, so that the airflow flowing from the air ring outflow end 1326 to the impeller 1312 is not easily interfered by the stop.

[0092] In the radial direction of the air ring 132, the air ring 132 is in clearance fit with the impeller 1312, which is mainly to enable the impeller 1312 to rotate, specifically, the impeller 1312 can rotate around its own axis. The air ring 132 is in clearance fit with the impeller 1312, specifically, the air ring outflow end 1326 is in clearance fit with the impeller inflow end 1316 in the radial direction of the air ring outflow end 1326 (also in the radial direction of the impeller inflow end 1316), that is, the impeller 1312 and the sleeved part of the air ring 132 are in clearance fit, so that the impeller 1312 can rotate around its own axis.

[0093] The outer peripheral wall of the impeller 1312 refers to the wall surface of the peripheral wall of the impeller 1312 facing the outside, which forms two opposite sides of the peripheral wall of the impeller 1312 with the inner peripheral wall of the impeller 1312. The stop portion 136 is arranged to protrude from the outer peripheral wall of the impeller 1312. It can be understood that at least part of the stop portion 136 is arranged more outward relative to the outer peripheral wall (the outer peripheral wall of the impeller 1312) in the radial direction of the impeller 1312. The stop portion 136 can be arranged in one circle or only a part of the circumference, such as half a circle, 1 / 4 of a circle, etc. The stop portion 136 can be an integral structure with the impeller 1312, or can be an integral structure connected by welding or other means. Of course, the stop portion 136 can also be fixedly connected to the impeller 1312 in other ways.

[0094] Optionally, in some embodiments, a plurality of stop portions 136 are arranged in the axial direction of the impeller 1312. In adjacent two stop portions 136, the protruding height of the stop portion 136 close to the impeller inflow end 1316 is less than the protruding height of the stop portion 136 close to the impeller inflow end 1316. In this embodiment, the closer to the impeller inflow end 1316, the higher the protruding height of the stop portion 136, which can further stop the airflow flowing backward from the impeller outflow end 1317.

[0095] Optionally, the airflow guiding device 130 further comprises a driving member 134 for driving the rotation of the impeller assembly 131, the driving member 134 can be connected with the impeller assembly 131 through an axle 1311, and the blades 1313 are connected on the axle 1311, and the driving member 134 drives the rotation of the axle 1311 and the blades 1313 and the impeller 1312. The driving member 134 can be a motor or the like.

[0096] Optionally, the airflow guiding device 130 can further comprise a fixing assembly 133 for connecting the impeller assembly 131 and the air guide ring 132, the fixing assembly 133 can fix the impeller assembly 131 to the air guide ring 132 while keeping the freedom of the impeller assembly 131 rotating around its own axis, so that the assembly of the airflow guiding device 130 can be completed by connecting the air guide ring 132 with the external fixing member. Of course, the impeller assembly 131 and the air guide ring 132 can also be respectively installed to the external member to make the airflow guiding device 130 installed to the external member.

[0097] When the airflow guiding device 130 of the embodiment is in operation, the impeller assembly 131 rotates to press the airflow from the air guide ring 132 to the air outlet (i.e. the impeller air outlet end 1317) of the impeller assembly 131. The air guide ring 132 is inserted into the impeller air inlet end 1316 of the impeller 1312, so that the stepped surface formed by the sleeve connection of the air guide ring 132 and the impeller 1312 can avoid the flow path of the airflow, improve the smoothness of the airflow, and reduce the possibility of increasing the noise caused by the airflow turbulence when the airflow flows from the air guide ring 132 to the impeller 1312. Meanwhile, the stop portion 136 can stop the airflow flowing in the opposite direction of the impeller 1312, reduce the possibility of the airflow flowing in the opposite direction through the gap between the air guide ring 132 and the impeller 1312 to enter the impeller 1312 again, causing the airflow in the impeller 1312 to separate and turbulent, and further reduce the noise of the airflow, so as to reduce the overall operation noise of the airflow guiding device 130 and the heat exchange equipment 101 applying the airflow guiding device 130.

[0098] According to some embodiments of the present application, the impeller air inlet end 1316 is provided with a stop portion 136.

[0099] The impeller air inlet end 1316 comprises the outer peripheral wall of the impeller 1312 close to the end face of the air inlet end and the end face of the air inlet end. That is to say, the stop portion 136 can be provided on at least the peripheral wall or the end face of the end of the impeller 1312 close to the air guide ring 132. Optionally, the outer peripheral wall corresponding to the connection position of the impeller 1312 and the air guide ring 132 can be provided with the stop portion 136, and specifically, the stop portion 136 can be a structure formed by outwardly folding the end face of the impeller air inlet end 1316.

[0100] The airflow guiding device 130 of the embodiment can directly stop and interfere with the airflow flowing back to the impeller air inlet end 1316 by arranging the stopper 136 at the impeller air inlet end 1316, thereby reducing the airflow flowing back to the impeller assembly 131 from the impeller air outlet end 1317 through the impeller air inlet end 1316 and reducing the operation noise of the airflow guiding device 130.

[0101] According to some embodiments of the present application, the stopper 136 is integrally arranged with the impeller 1312, as shown in FIGS. 8 and 9.

[0102] The stopper 136 can be integrally formed with the impeller 1312 in a pouring / injection or other manner, or the stopper 136 can be integrally connected with the impeller 1312 in a welding or other manner. Alternatively, the stopper 136 can be formed by outwardly protruding the outer peripheral wall of the impeller 1312, or can be a flange structure formed by outwardly folding the end of the impeller 1312.

[0103] The stopper 136 is integrally arranged with the impeller 1312 in the embodiment, and the stopper 136 and the outer peripheral wall of the impeller 1312 can be seamlessly connected, thereby improving the stopping effect of the stopper 136 on the airflow.

[0104] According to some embodiments of the present application, the stopper 136 is arranged in a closed loop around the outer peripheral wall (the outer peripheral wall of the impeller 1312) along the circumferential direction of the impeller 1312, as shown in FIGS. 8 to 12.

[0105] That is, the stopper 136 is arranged in one circle on the outer peripheral wall along the circumferential direction of the impeller 1312. It should be noted that when a plurality of stoppers 136 are arranged along the axial direction of the impeller 1312, one of the stoppers 136 can be arranged in one circle, and the other stoppers 136 can be arranged in one circle, or can be arranged locally along the circumferential direction.

[0106] Alternatively, the stopper 136 can be integrally arranged with the outer peripheral wall of the impeller 1312 at any position along the circumferential direction of the impeller 1312, so as to seamlessly connect the stopper 136 and the outer peripheral wall of the impeller 1312, thereby reducing the possibility of the airflow flowing back to the impeller air inlet end 1316 along the surface of the outer peripheral wall of the impeller 1312.

[0107] The airflow guiding device 130 of the embodiment can stop the airflow at any position along the circumferential direction of the impeller 1312, thereby reducing the possibility of the airflow flowing back to the impeller assembly 131 from the impeller air outlet end 1317 through the impeller air inlet end 1316, and reducing the operation noise of the airflow guiding device 130.

[0108] According to some embodiments of the present application, optionally, as shown in FIGS. 8-12, the stop portion 136 comprises a first stop segment 1361, one end of the first stop segment 1361 is connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312), and the first stop segment 1361 is arranged to protrude from the outer peripheral wall (the outer peripheral wall of the impeller 1312) along the radial direction of the impeller 1312, or the first stop segment 1361 is arranged to gradually approach the air outlet end 1317 of the impeller from one end connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the other end away from the outer peripheral wall (the outer peripheral wall of the impeller 1312).

[0109] Optionally, in one implementation, as shown in FIGS. 8-12, the first stop segment 1361 is arranged to protrude from the outer peripheral wall (the outer peripheral wall of the impeller 1312) along the radial direction of the impeller 1312. That is, the protruding direction of the first stop segment 1361 is substantially the same as the radial direction of the impeller 1312, the protruding direction of the first stop segment 1361 is substantially perpendicular to the axial direction of the impeller 1312, and the first stop segment 1361 is perpendicular to the outer peripheral wall (the outer peripheral wall of the impeller 1312) of the impeller 1312.

[0110] Optionally, in another implementation, the end of the first stop segment 1361 away from the outer peripheral wall (the outer peripheral wall of the impeller 1312) is arranged closer to the air outlet end 1317 of the impeller than the end of the first stop segment 1361 connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312). Optionally, the first stop segment 1361 can gradually change, that is, the first stop segment 1361 can be arranged to gradually approach the air outlet end 1317 of the impeller from one end connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the other end away from the outer peripheral wall (the outer peripheral wall of the impeller 1312). Specifically, as shown in FIG. 13, which is a partial cross-sectional schematic view of an impeller assembly according to some embodiments of the present application, in some specific implementations, the first stop segment 1361 can be arranged to be inclined toward the side where the air outlet end 1317 of the impeller is located from one end connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the other end away from the outer peripheral wall (the outer peripheral wall of the impeller 1312), that is, the protruding direction of the first stop segment 1361 is inclined relative to the radial direction of the impeller 1312, and the first stop segment 1361 is inclined toward the air inlet end 1316 of the impeller. In another implementation, the first stop segment 1361 can be arranged to be arc-shaped curved toward the side where the air outlet end 1317 of the impeller is located from one end connected with the outer peripheral wall (the outer peripheral wall of the impeller 1312) to the other end away from the outer peripheral wall (the outer peripheral wall of the impeller 1312).

[0111] The first stop segment 1361 is substantially perpendicular to the outer circumferential wall (the outer circumferential wall of the impeller 1312) or gradually approaches the impeller air outlet end 1317, the protruding direction A of the first stop segment 1361 and the flow direction B of the air flow from the impeller air outlet end 1317 are at an angle a of less than or equal to 90 degrees, which can better stop the reverse flow of the air flow, further reduce the possibility of the air flow from the impeller air outlet end 1317 flowing back to the impeller assembly 131 through the impeller air inlet end 1316, and reduce the operation noise of the air flow guide device 130.

[0112] According to some embodiments of the present application, the stop portion 136 includes a first stop segment 1361, which is folded radially outward from the outer circumferential wall of the impeller 1312.

[0113] As shown in FIGS. 8-13, the first stop segment 1361 can be folded radially outward from the outer circumferential wall of the impeller air inlet end 1316. Alternatively, the first stop segment 1361 can also be folded radially outward from the outer circumferential wall of the impeller air outlet end 1317.

[0114] The first stop segment 1361 is folded from the outer circumferential wall of the impeller 1312, which is simple in structure and has an integrated structure between the outer circumferential wall of the impeller 1312 and the first stop segment 1361, thereby reducing the possibility of reverse flow of the air flow from the connection between the outer circumferential wall of the impeller 1312 and the first stop segment 1361, further reducing the possibility of the air flow from the impeller air outlet end 1317 flowing back to the impeller assembly 131 through the impeller air inlet end 1316, and reducing the operation noise of the air flow guide device 130.

[0115] According to some embodiments of the present application, as shown in FIG. 14, the stop portion 136 further includes a second stop segment 1362, which is connected to one end of the first stop segment 1361 away from the outer circumferential wall (the outer circumferential wall of the impeller 1312) along the radial direction of the impeller 1312, and is located on the side of the first stop segment 1361 close to the impeller air outlet end 1317 along the axial direction of the impeller 1312. The second stop segment 1362 is arranged at an acute angle, a right angle or an obtuse angle with the first stop segment 1361, and is spaced apart from the outer circumferential wall (the outer circumferential wall of the impeller 1312).

[0116] The first stop section 1361 can be a straight section or a curved or bent meandering section along the radial direction of the impeller 1312. The second stop section 1362 can be a straight section or a curved or bent meandering section along the radial direction of the impeller 1312. The first stop section 1361 can be connected with the second stop section 1362 at any position along the circumferential direction of the impeller 1312, or the first stop section 1361 can be connected with the second stop section 1362 at a partial position along the circumferential direction of the impeller 1312. The first stop section 1361 and the second stop section 1362 can be an integral structure. The first stop section 1361 and the second stop section 1362 can be directly connected in a straight or bent manner, or can be connected in an arc-shaped section or other transition bent manner.

[0117] The first stop section 1361 is away from the outer circumferential wall (the outer circumferential wall of the impeller 1312) along the radial direction of the impeller 1312, that is, the outer end of the first stop section 1361 along the radial direction of the impeller 1312.

[0118] The side of the first stop section 1361 close to the impeller air outlet end 1317 refers to the side of the first stop section 1361 facing the impeller air outlet end 1317. The second stop section 1362 is spaced apart from the outer circumferential wall (the outer circumferential wall of the impeller 1312), that is, a gap for airflow to enter is provided between the second stop section 1362 and the outer circumferential wall (the outer circumferential wall of the impeller 1312). Specifically, as shown in FIG. 14, the second stop section 1362 can be spaced apart from the outer circumferential wall (the outer circumferential wall of the impeller 1312) at any position from the end away from the first stop section 1361 to the end connected with the first stop section 1361, so that the reverse flow of airflow from the impeller air outlet end 1317 can enter between the second stop section 1362 and the outer circumferential wall (the outer circumferential wall of the impeller 1312).

[0119] In some implementations, the second stop section 1362 is arranged at an acute angle with the first stop section 1361, that is, along the axial direction of the impeller 1312, the end of the second stop section 1362 connected with the first stop section 1361 is closer to the outer circumferential wall (the outer circumferential wall of the impeller 1312) than the end of the second stop section 1362 away from the first stop section 1361 (which is the end of the second stop section 1362 close to the impeller air outlet end 1317).

[0120] In some implementations, the second stop section 1362 is arranged at an obtuse angle with the first stop section 1361, that is, along the axial direction of the impeller 1312, the end of the second stop section 1362 connected with the first stop section 1361 is farther away from the outer circumferential wall (the outer circumferential wall of the impeller 1312) than the end of the second stop section 1362 away from the first stop section 1361 (which is the end of the second stop section 1362 close to the impeller air outlet end 1317).

[0121] In some implementations, as shown in FIG. 14, the second stop segment 1362 is bent at a right angle with the first stop segment 1361, that is, the second stop segment 1362 is arranged perpendicularly with the first stop segment 1361.

[0122] In the air flow guide device 130 of the embodiment, the second stop segment 1362 is arranged on the side of the first stop segment 1361 close to the impeller outflow end 1317, and the second stop segment 1362 is arranged spaced apart from the outer peripheral wall (the outer peripheral wall of the impeller 1312). The second stop segment 1362 can cooperate with the first stop segment 1361 to form a stop groove with an opening facing the impeller outflow end 1317. Under the restriction of the second stop segment 1362, the stop effect on the air flow flowing reversely from the impeller outflow end 1317 can be further improved, the possibility of the air flow discharged from the impeller outflow end 1317 flowing reversely to the impeller assembly 131 through the impeller inflow end 1316 can be further reduced, and the operation noise of the air flow guide device 130 can be reduced.

[0123] According to some embodiments of the present application, as shown in FIG. 14, the stop portion 136 further includes a second stop segment 1362, which is arranged to be folded in the axial direction of the impeller 1312 from the outer end of the first stop segment 1361 in the radial direction of the impeller.

[0124] The second stop segment 1362 is folded by the first stop segment 1361, which is simple in structure and convenient to process. Moreover, the connection between the second stop segment 1362 and the first stop segment 1361 is an integral structure, which reduces the possibility of the air flow flowing reversely from the connection between the second stop segment 1362 and the first stop segment 1361, further reduces the possibility of the air flow discharged from the impeller outflow end 1317 flowing reversely to the impeller assembly 131 through the impeller inflow end 1316, and reduces the operation noise of the air flow guide device 130.

[0125] According to some embodiments of the present application, as shown in FIGS. 8 and 9, the flow passage cross section of the air guide ring 132 is arranged to be tapered in the direction from the air ring inflow end 1325 to the air ring outflow end 1326.

[0126] The direction from the air ring inflow end 1325 to the air ring outflow end 1326 is also the flow direction of the air flow. In the flow direction of the air flow, the air guide ring 132 can be at least partially arranged to be tapered, so that the flow area of the air flow gradually decreases, to improve the air guide effect on the air flow.

[0127] Optionally, in some implementations, the air guide ring 132 includes a first air guide section 1323 and a second air guide section 1324, and the flow passage cross section of the first air guide section 1323 is arranged to be tapered in the direction from the air guide ring air inlet end 1325 to the air guide ring air outlet end 1326, the air outlet end of the first air guide section 1323 is arranged to be connected and communicated with the air inlet end of the second air guide section 1324, and the second air guide section 1324 is a straight cylinder section and is inserted into the impeller air inlet end 1316.

[0128] The flow passage cross section can be understood as the cross section of the region through which the airflow passes in the airflow channel. Specifically, the flow passage cross section of the first air guide section 1323 is the cross section of the airflow channel formed by the first air guide section 1323 along the axial direction of the first air guide section 1323; and the flow passage cross section of the second air guide section 1324 is the cross section of the airflow channel formed by the second air guide section 1324 along the axial direction of the second air guide section 1324.

[0129] The direction from the air guide ring air inlet end 1325 to the air guide ring air outlet end 1326 is the flow direction of the airflow in the air guide ring 132. The flow passage cross section of the first air guide section 1323 is tapered in the flow direction of the airflow, which can better guide the airflow. The first air guide section 1323 can be a section with the same flow passage cross section change rate, or can include multiple sub-sections with different flow passage cross section change rates. Optionally, in some embodiments, the first air guide section 1323 includes a first sub-section 1327 and a second sub-section 1328, and the first sub-section 1327, the second sub-section 1328, and the second air guide section 1324 are sequentially connected and communicated in the flow direction of the airflow, the flow passage cross section change rate of the first sub-section 1327 is greater than that of the second sub-section 1328, that is, the first sub-section 1327 is more obviously tapered than the second sub-section 1328, for example, the first sub-section 1327 and the second sub-section 1328 are both arranged to be arc-shaped and tapered in the axial direction, and the curvature of the first sub-section 1327 is greater than that of the second sub-section 1328. By arranging the flow passage cross section change rate of the first sub-section 1327 to be greater than that of the second sub-section 1328, the airflow guiding effect can be improved, and the noise can be reduced.

[0130] The air outlet end of the second air guide section 1324 is arranged to be connected and communicated with the air inlet end of the second air guide section 1324, which can be understood as that the flow passage cross section of the second air guide section 1324 is substantially the same as the flow passage cross section of the air outlet end of the first air guide section 1323 in terms of area and shape, so that the air outlet end of the first air guide section 1323 is connected with the air inlet end of the second air guide section 1324, and the airflow can flow smoothly at this position.

[0131] The second air guide section 1324 is a straight cylinder section. It can be understood that the shape and area of the flow section of the second air guide section 1324 remain unchanged from the air inlet end to the air outlet end. The second air guide section 1324 is arranged as a straight cylinder section and is used to be inserted into the air inlet end 1316 of the impeller. This can improve the matching degree between the second air guide section 1324 and the impeller 1312, reduce the gap between the air guide ring 132 and the impeller 1312 in the radial direction, reduce the flow of air (air flowing out of the air outlet of the impeller 1312) flowing back through the gap between the air guide ring 132 and the impeller 1312 and then entering the impeller 1312 again, and reduce noise. It should be noted that the air inlet end 1316 of the impeller 1312 can be arranged as a straight cylinder section to better match the second air guide section 1324.

[0132] The structure of the air guide ring 132 of the airflow guide device 130 of the embodiment can not only play a good flow guiding role, but also reduce the flow of air (air flowing out of the air outlet of the impeller 1312) flowing back through the gap between the air guide ring 132 and the impeller 1312 and then entering the impeller 1312 again, and reduce noise.

[0133] According to some embodiments of the present application, as shown in FIGS. 8-14, along the axial direction of the impeller 1312, the two ends of the blade 1313 do not exceed the end surface of the corresponding end of the impeller 1312.

[0134] The two ends of the blade 1313 do not exceed the end surface of the corresponding end of the impeller 1312. It can be understood that the blade 1313 is entirely located within the axial dimension of the impeller 1312. The end surface of the blade 1313 facing the air outlet end 1317 of the impeller can be flush with or located inside the air outlet end 1317 of the impeller. The end surface of the blade 1313 facing the air inlet end 1316 of the impeller can be flush with or located inside the air inlet end 1316 of the impeller. The blade 1313 is entirely located within the axial dimension of the impeller 1312. This can improve the matching of the blade and the impeller 1312 and improve the guiding ability of the airflow guide device 130.

[0135] According to some embodiments of the present application, as shown in FIGS. 8-14, along the axial direction of the impeller 1312, the distance between the blade 1313 and the end surface of the air outlet end 1317 of the impeller is a first size, and the distance between the blade 1313 and the end surface of the air inlet end 1316 of the impeller is a second size L. The first size is smaller than the second size L.

[0136] Optionally, along the axial direction of the impeller 1312, the two ends of the blade 1313 do not exceed the end surface of the corresponding end of the impeller 1312, and the first size is smaller than the second size L. The first size is the interval distance between the end surface of the blade 1313 facing the outflow end 1317 of the impeller and the end surface of the outflow end 1317 of the impeller along the axial direction of the impeller 1312. The second size L is the interval distance between the end surface of the blade 1313 facing the inflow end 1316 of the impeller and the end surface of the inflow end 1316 of the impeller along the axial direction of the impeller 1312. It should be noted that the first size can be zero (i.e., the blade 1313 is flush with the end surface of the outflow end 1317 of the impeller) or positive. Since the first size is smaller than the second size L, the second size L is positive, so the end surface of the impeller 1312 facing the inflow end 1316 of the impeller is located inside the inflow end 1316 of the impeller. It can be understood that the second size L is larger, which can provide assembly space for the air guide ring 132, so that the air guide ring 132 can be inserted into the inflow end of the impeller 1312 without interfering with the blade 1313 in the axial direction. The first size is smaller, which can make the outflow end 1317 of the impeller have a higher airflow pressure, which is conducive to promoting the rapid flow of airflow.

[0137] According to some embodiments of the present application, optionally, referring to FIGS. 6-8, and in combination with FIG. 15, FIG. 15 is a partial structural schematic diagram of an airflow guiding device according to some embodiments of the present application. The air guide ring 132 further comprises an assembly portion 1322. The outer wall surface of the inflow end 1325 of the air guide ring is connected with the assembly portion 1322. The assembly portion 1322 extends outwardly along the radial direction of the impeller 1312. The assembly portion 1322 is used to be connected with an external fixing member.

[0138] For the convenience of description and understanding, the main part of the air guide ring 132 is defined as the cover portion 1321. Specifically, the air guide ring 132 comprises 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 inflow end 1325 and the outflow end 1326 of the air guide ring, respectively. The outer wall surface of the inflow end 1325 of the cover portion 1321 is connected with the assembly portion 1322. The assembly portion 1322 is used to be connected with an external fixing member. The assembly portion 1322 is fixedly connected with the cover portion 1321, and the two can be an integral structure. Optionally, the assembly portion 1322 can be a structure formed by outwardly folding the inflow end 1325 of the cover portion 1321. Optionally, the assembly portion 1322 can be a flange structure. The assembly portion 1322 can be detachably connected with the external fixing member through bolts or the like.

[0139] The airflow guiding device 130 of the present embodiment can conveniently fix the air guide ring 132 to the external fixing member by providing the assembly portion 1322.

[0140] According to some embodiments of the present application, optionally, referring to FIGS. 6-8, and in combination with FIG. 15, the airflow guiding device 130 further comprises a fixing assembly 133, and the impeller assembly 131 is mounted to the assembling portion 1322 through the fixing assembly 133.

[0141] The fixing assembly 133 connects the impeller assembly 131 and the assembling portion 1322, so that the impeller assembly 131 is mounted to the assembling portion. It should be noted that the fixing assembly 133 is relatively fixed with the assembling portion 1322, and the impeller assembly 131 can rotate relative to the fixing assembly 133. For example, the fixing assembly 133 can comprise a connecting frame 1330 and a bearing fixed on the connecting frame 1330, the connecting frame 1330 is fixedly connected with the assembling portion 1322, and the bearing is connected with the wheel shaft 1311 of the impeller assembly 131 through a shaft, so that the impeller assembly 131 can rotate relative to the fixing assembly 133, and can be mounted to the assembling portion 1322 through the fixing assembly 133; for another example, the fixing assembly 133 can be connected with a fixed part of a driving part 134 (such as a motor) of the impeller assembly 131, and a driving output end 1343 of the driving part 134 is connected with the impeller assembly 131, so that the impeller assembly 131 can rotate relative to the fixing assembly 133, and can be mounted to the assembling portion 1322 through the fixing assembly 133.

[0142] In the airflow guiding device 130 of the present embodiment, the air guide ring 132 is arranged on the assembling portion 1322, and the impeller assembly 131 is mounted to the assembling portion 1322, so that the air guide ring 132 and the impeller assembly 131 are integrated as a whole, and the structure is simple. By connecting the assembling portion 1322 with an external fixing member, the whole airflow guiding device 130 can be fixed to the external fixing member, and the operation is convenient.

[0143] According to some embodiments of the present application, optionally, continuing to refer to FIGS. 6-8, and in combination with FIG. 15, the airflow guiding device 130 further comprises a driving part 134, and the impeller assembly 131 further comprises a wheel shaft 1311, the wheel shaft 1311 is arranged in the impeller 1312, the blades 1313 are connected to the wheel shaft 1311, and the driving part 134 is connected to one end of the wheel shaft 1311 away from the air guide ring 132.

[0144] The blades 1313 and the wheel shaft 1311 can be arranged at intervals along the axial direction of the impeller 1312, so that the impeller assembly 131 can rotate around its own axis, and the possibility of mutual interference between the impeller assembly 131 and the air guide ring 132 is reduced.

[0145] Optionally, the blades 1313 are arranged in a plurality of blades 1313, and the plurality of blades 1313 are connected to the wheel shaft 1311 at intervals along the circumferential direction of the wheel shaft 1311. The blades 1313, the wheel shaft 1311 and the impeller 1312 can be an integrated structure.

[0146] The driving member 134 can include a motor, and an output shaft of the motor is fixedly connected with the wheel shaft 1311 to drive the impeller assembly 131 to rotate around its own axis.

[0147] In some embodiments, the impeller assembly 131 can be supported and fixed by the output shaft of the motor, and the driving member 134 is fixedly connected with the assembly part 1322 through the fixing assembly 133, so that the fixing assembly 133 can support and fix the driving member 134 and the impeller assembly 131. Specifically, the airflow guiding device 130 further includes the driving member 134, the impeller assembly 131 further includes the wheel shaft 1311 arranged in the impeller 1312, the blades 1313 are connected with the wheel shaft 1311, and the blades 1313 and the wheel shaft 1311 are both arranged in the axial direction of the impeller 1312 and are spaced apart from the air guide ring 132. The driving member 134 is connected with one end of the wheel shaft 1311 away from the air guide ring 132, and the fixing assembly 133 is connected with the driving member 134 to mount the impeller assembly 131 and the driving member 134 on the assembly part 1322.

[0148] Optionally, in some implementations, the fixing assembly 133 includes a connecting frame 1330, one end of the connecting frame 1330 is detachably fixedly connected with the driving member 134 through bolts or the like, and the other end of the connecting frame 1330 is detachably fixedly connected with the assembly part 1322 through bolts or the like. Through the detachable manner, the disassembly and maintenance of the driving member 134 and the impeller assembly 131 are facilitated.

[0149] The airflow guiding device 130 of the embodiment, the driving member 134, the impeller assembly 131 and the air guide ring 132 can be integrated, which facilitates the assembly of the airflow guiding device 130 and the external fixing member, and the impeller assembly 131 and the driving member 134 are connected and fixed with the assembly part 1322 through the same fixing assembly 133, which is simple in structure and convenient to disassemble and assemble.

[0150] According to some embodiments of the present application, the wheel shaft 1311 is provided with an installation cavity 1314, and the driving member 134 is arranged in the installation cavity 1314, and the driving member 134 is arranged to drive the wheel shaft 1311 to rotate the impeller assembly 131.

[0151] In one optional implementation, the wheel shaft 1311 is provided with an installation cavity 1314, the installation cavity 1314 penetrates through an end face of the wheel shaft 1311 away from the air guide ring 132, the wheel shaft 1311 is further provided with a transmission part 1315, the transmission part 1315 is located at one end of the wheel shaft 1311 close to the air guide ring 132, part of the driving member 134 is arranged in the installation cavity 1314 and is in gap cooperation with a hole wall of the installation cavity 1314, and a driving output end 1343 of the driving member 134 is connected with the transmission part 1315 to drive the wheel shaft 1311 to rotate the impeller assembly 131.

[0152] As shown in FIGS. 8-14, the wheel shaft 1311 is internally hollow to form a mounting cavity 1314, the mounting cavity 1314 is open at an end away from the air guide ring 132, and the mounting cavity 1314 is sealed at an end close to the air guide ring 132. The motor body is inserted into the mounting cavity 1314 and is in clearance fit with the mounting cavity 1314, so that the impeller assembly 131 can rotate relative to the motor body; the output shaft of the motor is fixedly connected with the transmission part 1315, so that the output shaft of the motor can drive the impeller assembly 131 to rotate.

[0153] The transmission part 1315 and the driving output end 1343 can be connected by a key or fixedly connected by a bolt. Alternatively, in a specific implementation, the transmission part 1315 is provided with a polygonal hole, the driving output end 1343 is provided in a polygonal structure, the driving output end 1343 is inserted into the polygonal hole, so that the driving output end 1343 is fixedly connected with the transmission part 1315 in the circumferential direction; the driving output end 1343 is provided with a limiting part 1345 on the inside of the polygonal hole (the side of the polygonal hole facing the mounting cavity 1314), the driving output end 1343 passes through the polygonal hole, and a nut assembly 1344 is screwed on the outside 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 driving output end 1343 and the transmission part 1315 in the axial direction, so as to achieve the fixed connection of the driving output end 1343 and the wheel shaft 1311.

[0154] It should be noted that, in the axial direction of the impeller assembly 131, the body of the driving member 134 can be entirely located in the mounting cavity 1314 or partially protrude from the mounting cavity 1314.

[0155] The airflow guide device 130 of the embodiment has the driving member 134 at least partially built-in in the mounting cavity 1314, so that the airflow guide device 130 has a smaller volume, saving costs, and the driving member 134 is substantially built-in in the mounting cavity 1314, which can reduce the damage of rainwater and the like to the driving member 134 and improve the reliability of the driving member 134.

[0156] According to some embodiments of the present application, the airflow guide device 130 further includes a protective mesh cover 135, which covers the impeller assembly 131 on the radial outer side of the impeller 1312, as shown in FIGS. 6-8 and 15.

[0157] The protective mesh cover 135 is a cover structure with mesh holes, and the protective mesh cover 135 can be mounted on the assembly part 1322 and cover the radial outer side of the end of the impeller assembly 131 away from the air guide ring 132. The driving member 134 can be entirely or partially located in the protective mesh cover 135.

[0158] The protective mesh cover 135 can meet the air outlet requirement of the air flow guide device 130, reduce the entry of foreign matters into the air flow guide device 130, improve the reliability of the air flow guide device 130, and reduce the risk of the operator being injured by the air flow guide device 130.

[0159] Optionally, in some implementations, the protective mesh cover 135 can be provided with an assembly hole 1351, the driving member 134 partially protrudes from the mounting cavity 1314 and is located in the assembly hole 1351, one end of the fixing assembly 133 is connected with the driving member 134, and the other end is connected with the assembly portion 1322 by bypassing the protective mesh cover 135, and the protective mesh cover 135 is pressed against the assembly portion 1322 by the fixing assembly 133.

[0160] Optionally, the fixing assembly 133 can include a connecting frame 1330, the connecting frame 1330 includes a first connecting portion 1331 and a second connecting portion 1332 connected with each other, the first connecting portion 1331 extends substantially along the axial direction of the impeller 1312, one end of the first connecting portion 1331 is connected with the assembly portion 1322, the other end of the second connecting portion 1332 is connected with one end of the second connecting portion 1332, the second connecting portion 1332 extends substantially along the radial direction of the impeller 1312, the other end of the second connecting portion 1332 bypasses the protective mesh cover 135 away from the side of the impeller assembly 131, and is fixedly connected with the driving member 134. The connecting frame 1330 can be spaced apart along the circumferential direction of the protective mesh cover 135. The first connecting portion 1331 can be provided with a connecting plate 1333, the connecting plate 1333 is attached to the assembly portion 1322, and the connecting plate 1333 and the assembly portion 1322 can be fixedly connected by bolts or other fasteners. The first connecting portion 1331 and the second connecting portion 1332 can be an integral structure. The body of the driving member 134 can be provided with a protruding connecting block 1341, the second connecting portion 1332 is fixedly connected with the connecting block 1341, and the second connecting portion 1332 and the connecting block 1341 can be detachably connected by bolts or the like. The end of the second connecting portion 1332 away from the first connecting portion 1331 can be provided with a connecting plate, the second connecting portion 1332 is attached to the positioning ring plate 1334 or the connecting block 1341 through the connecting plate, and the positioning ring plate 1334 can be fixedly connected by bolts or other fasteners.

[0161] Optionally, the fixing assembly 133 can further include a positioning ring plate 1334, the positioning ring plate 1334 is arranged in the assembly hole 1351 and is sleeved on the outer side of the driving member 134, and the second connecting portion 1332 is further fixedly connected with the positioning ring plate 1334. The positioning ring plate 1334 is supported and fixed by the connecting frame 1330, and the positioning ring plate 1334 can limit the movement of the protective mesh cover 135 along the radial direction, thereby improving the assembly stability of the protective mesh cover 135. The positioning ring plate 1334 and the second connecting portion 1332 can be detachably connected by bolts or the like.

[0162] Optionally, the driving member 134 can have a small part exposed outside the protective mesh cover 135, which part can be connected to the power line assembly 1342 for supplying power to the driving member 134. By placing the power line assembly 1342 outside, the power line assembly 1342 is less likely to interfere with the protective mesh cover 135, improving the convenience of connecting the power line assembly 1342 to the power supply.

[0163] The embodiment has simple structure and high assembly stability, and when the impeller assembly 131 needs to be maintained, the protective mesh cover 135, the driving member 134 and the impeller assembly 131 can be disassembled by disassembling the fixing assembly 133, which is convenient to operate.

[0164] According to some embodiments of the present application, as shown in FIGS. 6, 8, 9 and 15, along the axial direction of the air guide ring 132, the cover body part 1321 includes a protruding part 1329 protruding from the assembly part 1322, the protruding part 1329 is used for inserting into the air vent of the external fixing member, and the protruding part 1329 is arranged as the air guide ring air inlet end 1325.

[0165] Along the axial direction of the air guide ring 132, the protruding part 1329 protrudes towards the side of the cover body part 1321 away from the impeller assembly 131. As the air guide ring air inlet end 1325, the protruding part 1329 can be understood as that the protruding part 1329 surrounds the air inlet of the air flow channel of the air guide ring 132, and the inner wall surface of the protruding part 1329 (the inner peripheral surface of the protruding part 1329 facing the air flow channel) is aligned and connected with the inner wall surface of the main body part of the cover body part 1321. Along the flow direction of the air flow, the inner wall surface of the protruding part 1329 can be tapered to improve the guiding effect of the air flow and reduce noise.

[0166] Referring to FIGS. 4 and 5, when the air flow guide device 130 is assembled with the external fixing member (which can be understood with reference to the housing 110 or the first wall 111), the assembly part 1322 can be attached to the wall of the external fixing member, the impeller assembly 131 is located on the side of the assembly part 1322 away from the external fixing member, the external fixing member is provided with an air vent, and the protruding part 1329 can be inserted into the air vent. The protruding part 1329 can make the air flow more smoothly to the air flow guide device 130, reduce the pressure loss of the air flow, and improve the guiding efficiency of the air flow guide device 130 to the air flow.

[0167] As shown in FIGS. 4-12 and 15, the airflow guiding device 130 provided by the embodiments of the present application comprises a wind ring 132, an impeller assembly 131, a driving member 134 and a protective mesh cover 135. The impeller assembly 131 comprises an impeller 1312, blades 1313 and a wheel shaft 1311. The blades 1313 comprise a plurality of pieces, and the plurality of blades 1313 are arranged in a circumferential direction of the wheel shaft 1311 and are fixedly connected to a circumferential side wall of the wheel shaft 1311. The impeller 1312 is in a cylindrical shape and is arranged outside the blades 1313 and is fixedly connected to the blades 1313. The wind ring 132 comprises a cover body part 1321 and an assembly part 1322. The two ends of the wind ring 132 in an axial direction are a wind ring air inlet end 1325 and a wind ring air outlet end 1326, respectively. The two ends of the impeller 1312 in an axial direction are an impeller air inlet end 1316 and an impeller air outlet end 1317, respectively. The cover body part 1321 of the wind ring 132 comprises the wind ring air inlet end 1325 and the wind ring air outlet end 1326 at the two ends in the axial direction of the wind ring 132. An outer wall surface of the wind ring air inlet end 1325 of the cover body part 1321 is connected with the assembly part 1322, and the assembly part 1322 is used for connecting with an external fixed member. In a direction from the wind ring air inlet end 1325 to the wind ring air outlet end 1326, a flow passage cross section of the cover body part 1321 is in a tapered shape. The wind ring air outlet end 1326 is arranged inside the impeller air inlet end 1316, so that the wind ring 132 is communicated with the impeller 1312. In a radial direction of the impeller 1312, the wind ring 132 is in a clearance fit with the impeller 1312. In an axial direction of the impeller 1312, the blades 1313 and the wheel shaft 1311 are arranged in a spaced manner with the wind ring 132. The impeller assembly 131 is configured to be able to rotate around an axis thereof relative to the wind ring 132. A circle of the impeller air inlet end 1316 is outwardly folded to form a first stop segment 1361. The first stop segment 1361 is arranged to protrude in a radial direction of the impeller 1312 from an outer circumferential wall (an outer circumferential wall of the impeller 1312). In the axial direction of the impeller 1312, the two ends of the blades 1313 do not exceed the end surfaces of the corresponding ends of the impeller 1312, respectively. In the axial direction of the impeller 1312, a spacing between the blades 1313 and the end surface of the impeller air outlet end 1317 is a first size, and a spacing between the blades 1313 and the end surface of the impeller air inlet end 1316 is a second size L. The first size is zero, and the second size L is a positive value. The wheel shaft 1311 is provided with a mounting cavity 1314 penetrating through one end of the wheel shaft 1311 away from the wind ring 132. The wheel shaft 1311 is further provided with a transmission part 1315 located at one end of the wheel shaft 1311 close to the wind ring 132. The driving member 134 is arranged in the mounting cavity 1314 and is in a clearance fit with a hole wall of the mounting cavity 1314. A driving output end 1343 of the driving member 134 is connected with the transmission part 1315 to drive the wheel shaft 1311 to rotate the blades 1313 and the impeller 1312. The protective mesh cover 135 is arranged at one end of the impeller assembly 131 away from the wind ring 132.The protective screen cover 135 is provided with an assembly hole 1351, the driving member 134 partially protrudes from the mounting cavity 1314 and is located in the assembly hole 1351, one end of the fixing assembly 133 is connected with the driving member 134, and the other end is connected with the assembly part 1322 by bypassing the protective screen cover 135, and the protective screen cover 135 is pressed against the assembly part 1322 through the fixing assembly 133.

[0168] The first air guide section 1323 can be at least partially provided as a protruding part 1329 relative to the assembly part 1322, the protruding part 1329 is used for being inserted into the air vent of the external fixing member, and the protruding part 1329 can be provided as the air ring air inlet end 1325.

[0169] Optionally, as shown in FIG. 14, the stop part 136 can further include a second stop section 1362, the first stop section 1361 is folded towards the side of the first stop section 1361 close to the impeller air outlet end 1317 along the radial outer end of the impeller 1312 to form the second stop section 1362, the second stop section 1362 is provided at an acute angle, a right angle or an obtuse angle with the first stop section 1361, and the second stop section 1362 is spaced apart from the outer peripheral wall (the outer peripheral wall of the impeller 1312).

[0170] Referring to FIGS. 4 and 5, some embodiments of the present application provide a heat exchange assembly, which includes a shell 110 and a first heat exchanger 120, and further includes the air flow guide device 130 provided by the present application or any embodiment of the present application. The shell 110 has an air vent, and the first heat exchanger 120 is arranged in the shell 110; the air flow guide device 130 is arranged at the air vent, and the air ring 132 is fixedly connected with the shell 110, and the air flow guide device 130 is used for guiding the air flow to flow through the first heat exchanger 120.

[0171] The air vent where the air flow guide device 130 is located can be the air inlet 112 of the shell 110, or can be the air outlet 113 of the shell 110. Optionally, the first wall 111 of the shell 110 is provided with the air outlet 113, the air flow guide device 130 is arranged at the air outlet 113, and the air flow guide device 130 is arranged on the outer side of the first wall 111. The air inlet 112 of the shell 110 can be provided with a mesh structure 114. One or more air outlets 113 can be arranged on the first wall 111, and the air flow guide device 130 can be arranged at each air outlet 113.

[0172] Optionally, in some implementations, the air guide ring 132 includes a protrusion 1329 which is inserted into the air vent and can protrude into the interior of the shell 110. A noise reduction member can be annularly arranged around the protrusion 1329, and can be flush with the end surface of the protrusion 1329. The noise reduction member can be sound-absorbing cotton, which can further reduce the noise of the heat exchange assembly. The noise reduction member flush with the end surface of the protrusion 1329 can improve the smoothness of the airflow and reduce noise.

[0173] Optionally, as shown in FIG. 5, the shell 110 can further be provided with a surrounding frame 115 which surrounds the outside of the airflow guide device 130. The surrounding frame 115 can reflect noise and reduce the noise of the heat exchange assembly. Noise reduction members such as sound-absorbing cotton can be arranged on the wall of the surrounding frame 115 and the shell 110 where the airflow guide device 130 is arranged, to further reduce the noise of the heat exchange assembly.

[0174] Optionally, as shown in FIG. 4, the first heat exchanger 120 and the air vent where the airflow guide device 130 is arranged can be arranged opposite and spaced apart, and a sound-absorbing cavity can be formed by the cooperation between the first heat exchanger 120 and the first wall 111 of the shell 110. Noise reduction members such as sound-absorbing cotton can be further arranged in the sound-absorbing cavity. The sound-absorbing cavity can absorb and reduce the noise generated by the airflow flowing through the first heat exchanger 120 and the operating noise of the airflow guide device 130, further reducing the noise of the heat exchange assembly.

[0175] In order to facilitate the understanding of other components, only a portion of the top end and the bottom end of the first heat exchanger 120 is shown in FIG. 4. In fact, the first heat exchanger 120 is a whole structure from the top end to the bottom end.

[0176] The heat exchange assembly of the present embodiment has at least the beneficial effects of the airflow guide device 130 proposed in the present application or any embodiment of the present application.

[0177] Some embodiments of the present application also provide a heat exchange device 101, which includes a compressor 150, a throttling assembly 160, a second heat exchanger 180, a refrigerant pipeline 190, and a heat exchange assembly. The heat exchange assembly can be the heat exchange assembly proposed in the present application or any embodiment of the present application. The compressor 150, the first heat exchanger 120, the throttling assembly 160, and the second heat exchanger 180 are connected in sequence through the refrigerant pipeline 190 to form a refrigerant circuit.

[0178] Any one of the compressor 150, the throttling assembly 160, and the second heat exchanger 180 can also be integrated in the shell 110. Of course, these components can also be independently arranged.

[0179] The heat exchange device 101 of the present embodiment has the same beneficial effects as the heat exchange assembly proposed in the present application or any embodiment of the present application.

[0180] Some embodiments of the present application also provide an energy storage system 10, comprising a battery 12 and a thermal management system 14, the thermal management system 14 being configured to regulate a temperature of the battery 12; wherein the thermal management system 14 comprises a second heat exchange loop 200 and a first heat exchange loop 100, the second heat exchange loop 200 being configured to exchange heat with the battery 12; the first heat exchange loop 100 comprising a heat exchange device 101 or a heat exchange assembly, the heat exchange device 101 can be the heat exchange device 101 provided by any of the embodiments of the present application, the heat exchange assembly can be the heat exchange assembly provided by any of the embodiments of the present application, the first heat exchange loop 100 being configured to exchange heat with the second heat exchange loop 200.

[0181] The energy storage system 10 of the present embodiment has the same beneficial effects as the heat exchange assembly provided by any of the embodiments of the present application.

[0182] According to some embodiments of the present application, the energy storage system 10 further comprises a cabinet 11 configured to accommodate the battery 12, and the heat exchange assembly is disposed inside or outside the cabinet 11. The above description of each embodiment tends to emphasize the differences between each embodiment, and the same or similar parts can be referred to each other. For the sake of brevity, the same or similar parts will not be described again.

[0183] Some embodiments of the present application also provide a charging system, comprising a charging pile, the charging system further comprising the energy storage system 10 provided by any of the embodiments of the present application, the charging pile being electrically connected to the battery 12 of the energy storage system 10, and the energy storage system 10 being configured to provide electric energy for the charging pile.

[0184] The charging pile refers to a power supply device for providing power supply for an electric device (such as an electric vehicle) or the like. The energy storage system 10 can convert the electric current of the energy storage system 10 into electric energy for the charging pile or the like by means of a power conversion device.

[0185] The charging system of the present embodiment has the same beneficial effects as the energy storage system 10 provided by any of the embodiments of the present application.

[0186] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. Such modifications or replacements do not change the essence of the corresponding technical solutions, which should be covered in the scope of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An airflow directing device, wherein, The air flow guiding device comprises: a wind ring; a blade wheel assembly comprising a blade wheel and a blade, the blade wheel is cylindrically arranged, the blade wheel is arranged outside the blade and fixedly connected with the blade, two axial ends of the wind ring are respectively a wind ring air inlet end and a wind ring air outlet end, two axial ends of the blade wheel are respectively a blade wheel air inlet end and a blade wheel air outlet end, along the axial direction of the blade wheel, the wind ring air outlet end is arranged inside the blade wheel air inlet end, and along the radial direction of the blade wheel, the wind ring and the blade wheel are gap-fitted, the blade wheel assembly is configured to be capable of rotating relative to the wind ring; a stop portion is arranged on the blade wheel, the stop portion is arranged to protrude from an outer peripheral wall of the blade wheel.

2. The airflow directing device of claim 1, wherein, The blade wheel air inlet end is provided with the stop portion.

3. The airflow directing arrangement of any of claims 1-2, wherein, The stop portion is an integral structure with the blade wheel.

4. The airflow directing device of any one of claims 1-3, wherein, The stop portion is arranged in a closed loop around the outer peripheral wall along the circumferential direction of the blade wheel.

5. The airflow directing device of any one of claims 1-4, wherein, The stop portion comprises a first stop segment, one end of the first stop segment is connected with the outer peripheral wall, the first stop segment is arranged to protrude from the outer peripheral wall along the radial direction of the blade wheel, or the first stop segment is arranged to gradually approach the blade wheel air outlet end from one end connected with the outer peripheral wall to an end away from the outer peripheral wall.

6. The airflow directing device of any one of claims 1-4, wherein, The stop portion comprises a first stop segment, along the radial direction of the blade wheel, the first stop segment is arranged to be folded outward from the outer peripheral wall of the blade wheel.

7. The airflow directing arrangement of claim 5 or 6, wherein, The stop portion further comprises a second stop segment, along the radial direction of the blade wheel, one end of the first stop segment away from the outer peripheral wall is connected with one end of the second stop segment, and along the axial direction of the blade wheel, the second stop segment is located on the side of the first stop segment close to the blade wheel air outlet end, the second stop segment is arranged at an acute angle, a right angle or an obtuse angle with the first stop segment, and the second stop segment is arranged in a spaced manner with the outer peripheral wall.

8. The airflow directing device of claim 7, wherein, The stop portion further comprises a second stop segment, the second stop segment is arranged to be folded from the outer end of the first stop segment along the radial direction of the blade wheel to the axial direction of the blade wheel.

9. The airflow directing device of any one of claims 1-8, wherein, Along the direction from the wind ring air inlet end to the wind ring air outlet end, the flow passage cross section of the wind ring is arranged in a tapered shape.

10. The airflow directing device of any one of claims 1-9, wherein, Along the axial direction of the blade wheel, two ends of the blade do not exceed the end faces of the corresponding ends of the blade wheel.

11. The airflow directing device of claim 10, wherein, Along the axial direction of the blade wheel, the distance between the blade and the end face of the blade wheel air outlet end is a first size, and the distance between the blade and the end face of the blade wheel air inlet end is a second size, the first size is smaller than the second size.

12. The airflow directing device of any one of claims 1-11, wherein, The wind ring further comprises an assembly portion, an outer wall surface of the wind ring air inlet end is connected with the assembly portion, the assembly portion extends outward along the radial direction of the blade wheel, and the assembly portion is used to be connected with an external fixing member.

13. The airflow directing arrangement of claim 12, wherein, The air flow guiding device further comprises a fixing assembly, the blade wheel assembly is installed on the assembly portion through the fixing assembly.

14. The airflow directing device of any one of claims 1-13, wherein, The air flow guiding device further comprises a driving member, the blade wheel assembly further comprises an axle shaft, the axle shaft is arranged in the blade wheel, the blade is connected with the axle shaft, and along the axial direction of the blade wheel, the driving member is connected with one end of the axle shaft away from the wind ring.

15. The airflow directing arrangement of claim 14, wherein, The wheel shaft is internally provided with a mounting cavity, and the driving member is arranged in the mounting cavity and configured to drive the wheel shaft to rotate the impeller assembly.

16. The airflow directing device of any one of claims 1-15, wherein, The airflow guiding device further comprises a protective mesh cover, which is arranged on the outer side of the impeller assembly along the radial direction of the impeller.

17. The airflow directing arrangement of claim 12 or 13, wherein, In the axial direction of the impeller, the air guide ring comprises a protruding portion protruding from the assembly portion, which is configured to be inserted into the air vent of the external fixing member and is arranged at the air inlet end of the air guide ring.

18. A heat exchange assembly, wherein, The heat exchange assembly comprises: a housing having an air vent; a first heat exchanger arranged in the housing; the airflow guiding device according to any one of claims 1-17 is arranged at the air vent, the air guide ring is fixedly connected with the housing, and the airflow guiding device is configured to guide the airflow to flow through the first heat exchanger.

19. A heat exchange apparatus wherein, The heat exchange device comprises a compressor, a throttling assembly, a second heat exchanger, a refrigerant pipeline, and the heat exchange assembly according to claim 18, and the compressor, the first heat exchanger, the throttling assembly, and the second heat exchanger are sequentially connected through the refrigerant pipeline.

20. An energy storage system, wherein, The heat exchange assembly comprises: a battery; a thermal management system configured to adjust the temperature of the battery; wherein the thermal management system comprises a first heat exchange circuit and a second heat exchange circuit, the first heat exchange circuit comprises the heat exchange assembly according to claim 18 or the heat exchange device according to claim 19, the first heat exchange circuit is configured to exchange heat with the second heat exchange circuit, and the second heat exchange circuit is configured to exchange heat with the battery.

21. The energy storage system of claim 20, wherein, The energy storage system further comprises a cabinet body configured to accommodate the battery, and the heat exchange assembly is arranged inside or outside the cabinet body.

22. A charging system, wherein, The heat exchange assembly comprises: a charging pile; and the energy storage system according to claim 20 or 21, the charging pile is electrically connected with the battery of the energy storage system, and the energy storage system is configured to provide electric energy for the charging pile. ​

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