Heat exchange system, energy storage device and electric equipment

Abstract

The utility model discloses a heat exchange system, an energy storage device and electric equipment.The heat exchange system comprises a shell assembly, a heat exchange assembly and a fan assembly, the shell assembly comprises an air inlet, an air outlet and an installation space, and the installation space is arranged in the shell assembly and communicates with the air inlet and the air outlet; part of the heat exchange assembly is installed in the installation space, the fan assembly is installed in the installation space, and the fan assembly is configured to drive airflow to flow in the directions of the air inlet, the installation space and the air outlet so that the heat exchange assembly can exchange heat with the airflow passing through the installation space. Specifically, the fan assembly is installed in the installation space of the shell assembly, and the installation space is used for containing the fan assembly. When the fan assembly runs, the shell assembly can block noise generated in the running process of the fan assembly, so that the noise transmitted to the outside in the running process of the fan assembly can be reduced, and the overall noise in the running process of the heat exchange system can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and particularly to a heat exchange system, an energy storage device, and an electrical equipment. Background Art

[0002] Energy storage devices have been widely used due to their advantages such as large electrical energy storage capacity. An energy storage device generally includes a box body, a heat exchange system, and multiple batteries. The heat exchange system and the multiple batteries are respectively arranged in the box body, and the heat exchange system is used to exchange heat with the multiple batteries to enable the multiple batteries to operate stably.

[0003] In related technologies, the heat exchange system includes a box body, a heat exchange component, and a fan. During the operation of the heat exchange system, the fan drives the air flow to exchange heat with the heat exchange component. However, the existing fan generates relatively large noise during operation, reducing the user experience. Summary of the Utility Model

[0004] In view of the above problems, this application provides a heat exchange system, an energy storage device, and an electrical equipment, which solve the problem of large noise generated by the fan of the heat exchange system during operation.

[0005] A first aspect of this application provides a heat exchange system, which includes:

[0006] A housing assembly, which includes an air inlet, an air outlet, and an installation space. The installation space is arranged inside the housing assembly and is respectively communicated with the air inlet and the air outlet;

[0007] A heat exchange component, and part of the heat exchange component is installed in the installation space;

[0008] A fan assembly, which is installed in the installation space. The fan assembly is configured to drive the air flow to flow along the directions of the air inlet, the installation space, and the air outlet, so that the heat exchange component exchanges heat with the air flow passing through the installation space.

[0009] Specifically, the fan assembly is installed in the installation space of the housing assembly, and the installation space is used to accommodate the fan assembly. When the fan assembly operates, the housing assembly can block the noise generated during the operation of the fan assembly, thereby reducing the noise transmission from the fan assembly during operation to the outside, and further reducing the overall noise during the operation of the heat exchange system.

[0010] In some embodiments of this application, the housing assembly includes a first side plate and a second side plate. The first side plate and the second side plate are opposite and spaced apart. The air outlet is opened on the first side plate, and the air inlet is opened on the second side plate.

[0011] Specifically, the air inlet and the air outlet are arranged on the relatively arranged first side plate and second side plate, so as to reduce the turning of the air flow during the flowing process, and further improve the flow velocity of the air flow, so that the heat exchange efficiency of the heat exchange system can be effectively improved.

[0012] In some embodiments of the present application, the fan assembly is installed on the side of the first side plate facing the second side plate. Specifically, the air outlet is arranged on the first side plate, and the air inlet is arranged on the second side plate. By arranging the fan assembly on the first side plate, the fan assembly can be close to the air outlet, so as to utilize the fan assembly to quickly discharge the air flow in the installation space through the air outlet, and effectively improve the heat exchange efficiency of the heat exchange system.

[0013] In some embodiments of the present application, the fan assembly includes at least one fan. The fan includes an inlet and an outlet. The inlet is communicated with the air inlet through the installation space, and the outlet abuts against the first side plate and is communicated with the air outlet. Specifically, by abutting the outlet of the fan against the first side plate and arranging it to be communicated with the air outlet, the distance between the fan and the air outlet can be shortened, so that the air flow discharged from the outlet of the fan can be effectively discharged through the air outlet, and further the heat exchange effect of the heat exchange system can be improved.

[0014] In some embodiments of the present application, the number of the fans is two, the two fans are arranged at intervals, the number of the air outlets is the same as the number of the outlets, and they are arranged in one-to-one correspondence. Specifically, by arranging two fans, the driving ability for the air flow is improved, and further the heat exchange efficiency of the heat exchange system can be further improved.

[0015] In some embodiments of the present application, the fan is a centrifugal fan. By setting the fan as a centrifugal fan, during the operation of the centrifugal fan, the wind field is relatively dispersed, so as to improve the uniformity of the wind field, make the air flow more uniform during the flowing process, and further reduce the noise value during the operation of the fan, so that the user experience can be improved.

[0016] In some embodiments of the present application, the fan includes a mounting seat, a first volute, a first impeller and a driving member. The mounting seat is installed on the first side plate, the first volute is arranged on the mounting seat, the circumferential side wall of the first volute and the mounting seat have a first communication position. At the first communication position, the mounting seat is provided with an outlet, at least one axial end of the first volute is provided with an inlet, the first impeller is rotatably arranged in the first volute, and the driving member includes a driving shaft, and the driving shaft is connected to the first impeller and drives the first impeller to rotate.

[0017] Specifically, during the operation of the fan, the air flow enters through the inlet located at one axial end of the first volute and discharges from the outlet located on one circumferential side of the first volute. The structure of the fan can reduce the concentration of the wind field, improve the uniformity of the wind field, and thus effectively reduce the noise of the heat exchange system.

[0018] In some embodiments of the present application, the fan further includes:

[0019] A second volute, which is arranged on the mounting seat. Along the axial direction of the driving shaft, the second volute and the first volute are arranged on opposite sides of the driving member. The circumferential side wall of the second volute and the mounting seat have a second communication position. At the second communication position, the mounting seat is provided with an outlet, and at least one axial end of the second volute is provided with an inlet;

[0020] A second impeller, which is rotatably arranged in the second volute and connected to the driving shaft.

[0021] Specifically, using one driving member to drive two impellers simultaneously can improve the driving ability of the fan for the air flow, and further improve the heat exchange efficiency of the heat exchange system.

[0022] In some embodiments of the present application, the first volute is of an integral structure or a split structure. Specifically, by setting the first volute, the structure of the first volute can be selected according to the processing needs, thereby improving the structural flexibility.

[0023] In some embodiments of the present application, the second volute is of an integral structure or a split structure. Specifically, by setting the second volute, the structure of the first volute can be selected according to the processing needs, thereby improving the structural flexibility.

[0024] In some embodiments of the present application, the housing assembly further includes:

[0025] A bottom plate, and a first side plate and a second side plate are respectively connected to the bottom plate;

[0026] A support frame, which is arranged between the first side plate and the second side plate and is connected to at least one of the first side plate, the second side plate and the bottom plate.

[0027] Specifically, by setting the base and the support frame and connecting the first side plate and the second side plate to at least one of the bottom plate and the support frame, a stable housing assembly can be formed, improving the structural stability of the housing assembly and reducing the noise generated by the shaking of the housing assembly during the operation of the fan.

[0028] In the second aspect of the present application, an energy storage device, the energy storage device includes:

[0029] A box body;

[0030] A battery device, the battery device is arranged inside a box body;

[0031] According to the heat exchange system as above, the heat exchange assembly includes a refrigerant assembly and a coolant assembly. The coolant assembly includes a first heat exchange member and a second heat exchange member. The first heat exchange member includes a first channel and a second channel that are not connected to each other. The first channel and the second channel are arranged to exchange heat with each other. The second heat exchange member is connected to the first channel and forms a coolant circuit. The second heat exchange member is used to exchange heat for the battery device. The refrigerant assembly includes a third heat exchange member. The third heat exchange member is connected to the second channel and forms a refrigerant circuit. The third heat exchange member is used to exchange heat with air.

[0032] Specifically, the fan assembly is installed in the installation space of the housing assembly, and the installation space is used to accommodate the fan assembly. When the fan assembly operates, the housing assembly can block the noise generated during the operation of the fan, so that the noise during the operation of the fan assembly can be reduced from being transmitted to the outside, and further the overall noise during the operation of the heat exchange system can be reduced.

[0033] In a third aspect of the present application, an electrical equipment includes the energy storage device as above.

[0034] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically described below. Brief Description of the Drawings

[0035] Figure 1 Schematically shows a structural diagram of an energy storage device according to an embodiment of the present application;

[0036] Figure 2 For Figure 1 A structural diagram of the heat exchange system of the energy storage device shown (showing a part of the structure, the thick black arrow line in the figure is the flow direction of the air flow);

[0037] Figure 3 For Figure 2 A structural diagram of another perspective of the heat exchange system shown in ;

[0038] Figure 4 For Figure 2 A structural diagram of the fan in the heat exchange system shown;

[0039] Figure 5 For Figure 4 A structural diagram of another perspective of the fan shown in ;

[0040] Figure 6 For Figure 1Schematic diagram of the refrigerant component and the coolant component in the energy storage device shown in the figure.

[0041] The reference numerals are as follows:

[0042] 100. Energy storage device;

[0043] 10. Box body;

[0044] 101. First chamber; 102. Second chamber;

[0045] 20. Battery device;

[0046] 30. Heat exchange system;

[0047] 31. Heat exchange component; 311. Coolant component; 3111. First heat exchanger; 31111. First channel; 31112. Second channel; 3112. Second heat exchanger; 3113. Water pump; 312. Refrigerant component; 3121. Third heat exchanger; 3122. Compressor; 3123. Throttling element;

[0048] 32. Housing component;

[0049] 321. First side plate; 322. Second side plate; 3221. Air inlet; 323. Support frame; 3231. Air outlet; 324. Bottom plate; 325. Installation space;

[0050] 33. Fan component;

[0051] 331. Mounting seat; 332. First volute; 3321. First part; 3322. Second part; 3323. First connection structure; 333. First impeller; 334. Driving member; 335. Second volute; 3351. Third part; 3352. Fourth part; 3353. Second connection structure; 336. Second impeller; 337. Inlet; 338. Outlet;

[0052] a. Height direction. Specific embodiments

[0053] Hereinafter, embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, and therefore are only examples and cannot be used to limit the protection scope of the present application.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0055] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "a plurality" is more than two, unless otherwise specifically defined.

[0056] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0057] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0058] In the description of the embodiments of this application, the term "a plurality" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0059] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of this application.

[0060] In the description of the embodiments of the present application, unless otherwise clearly defined and limited, technical terms such as "installation", "connection", "coupling", "fixing", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0061] Currently, from the perspective of the development of the market situation, the application of battery devices is becoming more and more extensive. Battery devices are not only applied to energy storage power systems such as hydraulic power plants, thermal power plants, wind power plants, and solar power plants, but also widely applied to electric transportation tools such as electric bicycles, electric motorcycles, and electric vehicles, as well as multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of battery devices, the market demand is also continuously increasing. Energy storage devices with multiple sets of battery devices have been widely applied due to their advantages such as large electric energy storage capacity.

[0062] In the related art, a heat exchange system includes a box body, a heat exchange component, and a fan. During the operation of the heat exchange system, the fan drives the air flow to exchange heat with the heat exchange component. However, the existing fan generates relatively large noise during operation, reducing the user experience.

[0063] In the present application, the heat exchange system includes a housing assembly, a heat exchange component, and a fan assembly. The housing assembly includes an air inlet, an air outlet, and an installation space. The installation space is arranged inside the housing assembly and is respectively communicated with the air inlet and the air outlet. Part of the heat exchange component is installed in the installation space, and the fan assembly is installed in the installation space. The fan assembly is configured to drive the air flow to flow along the directions of the air inlet, the installation space, and the air outlet, so that the heat exchange component exchanges heat with the air flow passing through the installation space. Specifically, the fan assembly is installed in the installation space of the housing assembly, and the installation space is used to accommodate the fan assembly. When the fan assembly operates, the housing assembly can block the noise generated during the operation of the fan assembly, thereby reducing the noise transmission from the fan assembly during operation to the outside, and further reducing the overall noise during the operation of the heat exchange system.

[0064] In some embodiments of the present application, such as Figures 1 to 6As shown, a heat exchange system 30 is proposed. The heat exchange system 30 includes a housing assembly 32, a heat exchange assembly 31, and a fan assembly 33. The housing assembly 32 includes an air inlet 3221, an air outlet 3231, and an installation space 325. The installation space 325 is provided inside the housing assembly 32 and is respectively communicated with the air inlet 3221 and the air outlet 3231. Part of the heat exchange assembly 31 is installed in the installation space 325, and the fan assembly 33 is installed in the installation space 325. The fan assembly 33 is configured to drive air flow along the directions of the air inlet 3221, the installation space 325, and the air outlet 3231, so that the heat exchange assembly 31 exchanges heat with the air flow passing through the installation space 325.

[0065] It should be understood that the installation space 325 is formed inside the heat exchange assembly 31. The installation space 325 is a relatively enclosed space, and the installation space 325 is communicated with the outside through the air inlet 3221 and the air outlet 3231. The fan assembly 33 is installed in the installation space 325, and when the fan assembly 33 operates, it can drive the outside air to enter the installation space 325 through the air inlet 3221, that is, drive the air flow in the installation space 325 to enter the outside through the air outlet 3231.

[0066] In addition, the air inlet 3221 is formed on the housing assembly 32. The shape of the air inlet 3221 includes but is not limited to circular, oval, or polygonal (such as triangular, rectangular, pentagonal, etc.). At the same time, the air inlet 3221 can be a structure opened on a certain component of the housing assembly 32, or a structure surrounded by multiple components in the housing assembly 32.

[0067] Furthermore, the air outlet 3231 is formed on the housing assembly 32. The shape of the air outlet 3231 includes but is not limited to circular, oval, or polygonal (such as triangular, rectangular, pentagonal, etc.). At the same time, the air outlet 3231 can be a structure opened on a certain component of the housing assembly 32, or a structure surrounded by multiple components in the housing assembly 32.

[0068] In this application, the fan assembly 33 is installed in the installation space 325 of the housing assembly 32, and the installation space 325 is used to house the fan assembly 33. When the fan assembly 33 operates, the housing assembly 32 can block the noise generated during the operation of the fan assembly 33, so that the noise during the operation of the fan assembly 33 can be reduced from being transmitted to the outside, and further the overall noise during the operation of the heat exchange system 30 can be reduced.

[0069] It should be noted that a part of the structure of the heat exchange component 31 is arranged in the installation space 325, and another part of the structure is arranged outside the heat exchange space. Among them, the part arranged outside the heat exchange space is used to exchange heat with other structures. For example, when the heat exchange system 30 is used for the energy storage device 100, the part located outside the accommodation space is thermally connected to the battery device 20 of the energy storage device 100 to exchange heat with the battery device 20.

[0070] In addition, the housing assembly 32 has a plurality of wall surfaces. The air inlet 3221 and the air outlet 3231 can be arranged on the same wall surface or on different wall surfaces. When the air inlet 3221 and the air outlet 3231 are arranged on different surfaces, the wall surface with the air inlet 3221 and the wall surface with the air outlet 3231 can be arranged in parallel or intersecting.

[0071] In some embodiments of the present application, as Figure 2 and Figure 3 shown, the housing assembly 32 includes a first side plate 321 and a second side plate 322. The first side plate 321 and the second side plate 322 are opposite and spaced apart. The air outlet 3231 is opened on the first side plate 321, and the air inlet 3221 is opened on the second side plate 322.

[0072] Specifically, the first side plate 321 and the second side plate 322 are used to enclose the installation space 325 of the housing assembly 32. Among them, the first side plate 321 and the second side plate 322 are spaced apart in the first direction. The first direction is parallel to the horizontal direction or is arranged at an angle with the horizontal direction. The first side plate 321 and the second side plate 322 are arranged parallel to each other.

[0073] In the present application, the air inlet 3221 and the air outlet 3231 are arranged on the relatively arranged first side plate 321 and second side plate 322, so as to reduce the turning of the air flow during the flow process, and further improve the flow rate of the air flow, so that the heat exchange efficiency of the heat exchange system 30 can be effectively improved.

[0074] It should be noted that along the height direction a of the housing assembly 32, the air inlet 3221 and the air outlet 3231 can be at the same height or at different heights.

[0075] In addition, in the present application, the first side plate 321 can be a metal plate or a non-metal plate. When the first side plate 321 is a metal plate, the air outlet 3231 can be formed on the first side plate 321 by stamping or cutting. When the first side plate 321 is a non-metal plate, for example, the first side plate 321 is a plastic plate, the air outlet 3231 is formed on the first side plate 321 by integral injection molding.

[0076] In addition, in the present application, the second side plate 322 can be a metal plate or a non-metal plate. When the second side plate 322 is a metal plate, the air inlet 3221 can be formed on the second side plate 322 by stamping or cutting. When the second side plate 322 is a non-metal plate, for example, the second side plate 322 is a plastic plate, the air outlet 3231 is formed on the second side plate 322 by integral injection molding.

[0077] In some embodiments of the present application, as Figure 2 and Figure 3 shown, the fan assembly 33 is installed on the side of the first side plate 321 facing the second side plate 322.

[0078] Specifically, the first side plate 321 and the second side plate 322 are disposed opposite to each other, and the first side plate 321 and the second side plate 322 are spaced apart from each other. The first side plate 321 has a side facing the second side plate 322 and a side facing away from the side plate. The fan assembly 33 is disposed in the installation space 325 of the housing assembly 32 and is connected to the side of the first side plate 321 facing the second side plate 322, so that the fan assembly 33 is fixed in the installation space 325.

[0079] In the present application, the air outlet 3231 is provided on the first side plate 321, and the air inlet 3221 is provided on the second side plate 322. The fan assembly 33 is disposed on the first side plate 321, so that the fan assembly 33 can be disposed close to the air outlet 3231, and the air flow in the installation space 325 can be quickly discharged through the air outlet 3231 by the fan assembly 33, effectively improving the heat exchange efficiency of the heat exchange system 30.

[0080] It should be noted that the connection method between the fan assembly 33 and the first side plate 321 includes but is not limited to welding, bonding, clamping or connection through a connecting member (such as a screw, etc.).

[0081] For example, the fan assembly 33 and the first side plate 321 are connected by screws. Screw holes are respectively provided on the fan assembly 33 and the first side plate 321, and the screws are respectively threadedly connected to the screw holes on the first side plate 321 and the fan assembly 33. The screw connection has high structural stability and is convenient for disassembly and maintenance. In addition, in order to further improve the connection strength and stability between the fan assembly 33 and the first side plate 321, the number of screws is multiple, and the number of threaded holes is consistent with the number of screws.

[0082] In some embodiments of the present application, as Figures 2 to 5 shown, the fan assembly 33 includes at least one fan. The fan includes an inlet 337 and an outlet 338. The inlet 337 is connected to the air inlet 3221 through the installation space 325, and the outlet 338 abuts against the first side plate 321 and is connected to the air outlet 3231.

[0083] Specifically, the blower is disposed in the installation space 325 of the housing assembly 32 and is connected to the first side plate 321 of the housing assembly 32. The blower has an inlet 337 and an outlet 338. After the blower is fixed, the side of the blower with the outlet 338 abuts against the first side plate 321, so that the outlet 338 is communicated with the air outlet 3231 on the side plate, and the inlet 337 of the blower is communicated with the installation space 325.

[0084] In this application, the outlet 338 of the blower is abutted against the first side plate 321 and is arranged to be communicated with the air outlet 3231, so that the distance between the blower and the air outlet 3231 can be shortened, and the air flow discharged from the outlet 338 of the blower can be effectively discharged through the air outlet 3231, thereby improving the heat exchange effect of the heat exchange system 30.

[0085] It should be noted that in this application, the shape and size of the outlet 338 of the blower are the same as those of the air outlet 3231. When the blower is installed and fixed on the first side plate 321, the outlet 338 and the air outlet 3231 are coaxially arranged, so that the air flow discharged from the blower can be effectively discharged through the air outlet 3231, thereby improving the discharge efficiency of the air flow.

[0086] In addition, a sealing structure such as a sealing ring or sealant can be provided at the joint position between the blower and the first side plate 321, so as to reduce the leakage of air at the structural position between the blower and the first side plate 321.

[0087] In addition, the number of blowers can be one, two, three, four, five, six, seven, eight, nine, ten, etc.

[0088] In some embodiments of this application, as Figure 2 and Figure 3 shown, the number of blowers is two, the two blowers are arranged at intervals, the number of air outlets 3231 is the same as the number of outlets 338, and they are arranged in one-to-one correspondence.

[0089] Specifically, the number of blowers and the number of air outlets 3231 are both two. Each blower is arranged corresponding to one air outlet 3231, that is, the outlet 338 of each blower is communicated with the outside through one air outlet 3231.

[0090] In addition, the two blowers are arranged at intervals, and the interval direction between them can be the horizontal direction, the height direction a of the housing assembly 32, or an angle (the angle is not 90°) with the horizontal direction.

[0091] In this application, as Figure 2 and Figure 3As shown, two fans are arranged along the height direction a of the housing assembly 32, and the two fans are equidistantly arranged on the first side plate 321 along the height direction a of the housing assembly 32.

[0092] By arranging two fans, the driving ability of the air flow is improved, and thus the heat exchange efficiency of the heat exchange system 30 can be further enhanced.

[0093] In some embodiments of the present application, the fan is a centrifugal fan.

[0094] Specifically, the centrifugal fan has a structure of axial air inlet and radial air outlet. By setting the fan as a centrifugal fan, during the operation of the centrifugal fan, the wind field is relatively dispersed, so that the uniformity of the wind field can be improved, the air flow is more uniform during the flow process, and thus the noise value during the operation of the fan can be further reduced, and the user experience can be improved.

[0095] It should be noted that the axial direction of the centrifugal fan can be along the height direction a of the housing assembly 32, can also be along the horizontal direction, or can be set at an angle (the angle is not 90°) with the horizontal direction.

[0096] In some embodiments of the present application, as Figure 4 and Figure 5 shown, the fan includes a mounting seat 331, a first volute 332, a first impeller 333 and a driving member 334. The mounting seat 331 is mounted on the first side plate 321, the first volute 332 is arranged on the mounting seat 331, the circumferential side wall of the first volute 332 and the mounting seat 331 have a first communication position. At the first communication position, the mounting seat 331 is provided with an outlet 338, at least one axial end of the first volute 332 is provided with an inlet 337, the first impeller 333 is rotatably arranged in the first volute 332, and the driving member 334 includes a driving shaft, and the driving shaft is connected to the first impeller 333 and drives the first impeller 333 to rotate.

[0097] Specifically, the mounting seat 331 is connected to the radially outer peripheral wall of the first volute 332 to form the first communication position. The axis of the first volute 332 is parallel to the mounting seat 331. The mounting seat 331 is fixedly connected to the first side plate 321. After the mounting seat 331 is fixed, the axis of the first volute 332 is parallel to the first side plate 321.

[0098] The mounting base 331 is provided with an outlet 338 at the first communication position, and the outlet 338 is communicated with the interior of the first volute 332. At least one axial end of the first volute 332 is provided with an inlet 337. During the operation of the fan, the air flow enters through the inlet 337 at one axial end of the first volute 332 and is discharged from the outlet 338 on the circumferential side of the first volute 332. The structure of the fan can reduce the concentration of the wind field, improve the uniformity of the wind field, and thus effectively reduce the noise of the heat exchange system 30.

[0099] In the present application, the axis of the first volute 332 is arranged along the height direction a of the housing assembly 32. When the fan operates, the impeller rotates in the first volute 332, so that the air flow in the installation space 325 enters the first volute 332 through the inlet 337 on the first volute 332 in the height direction a of the housing assembly 32, and is discharged through the outlet 338 on the mounting base 331 and the air outlet 3231 on the first side plate 321. With such an arrangement, the wind field in the installation space 325 can be made more dispersed and uniform, thereby effectively reducing the noise during the operation of the fan assembly 33.

[0100] In some embodiments of the present application, as Figure 4 and Figure 5 shown, the fan further includes a second volute 335 and a second impeller 336. The second volute 335 is arranged on the mounting base 331. Along the axial direction of the drive shaft, the second volute 335 and the first volute 332 are arranged on opposite sides of the drive member 334. The circumferential side wall of the second volute 335 and the mounting base 331 have a second communication position. At the second communication position, the mounting base 331 is provided with an outlet 338, at least one axial end of the second volute 335 is provided with an inlet 337, and the second impeller 336 is rotatably arranged in the second volute 335 and connected to the drive shaft.

[0101] Specifically, the fan includes a mounting base 331, a first volute 332, a first impeller 333, a drive member 334, a second volute 335 and a second impeller 336. The first volute 332 and the second volute 335 are located at opposite ends of the drive shaft of the drive member 334. The first volute 332 and the second volute 335 are respectively connected and fixed to the mounting base 331. The first impeller 333 is rotatably arranged in the first volute 332 and connected to one end of the drive shaft, and the second impeller 336 is rotatably arranged in the second volute 335 and connected to the other end of the drive shaft.

[0102] Using one drive member 334 to drive two impellers simultaneously can improve the driving ability of the fan for the air flow, and further improve the heat exchange efficiency of the heat exchange system 30.

[0103] It should be understood that in the present application, the mounting seat 331 is connected to the radially outer peripheral wall of the second volute 335 to form a second communication position. The axis of the second volute 335 is parallel to the mounting seat 331. The mounting seat 331 is fixedly connected to the first side plate 321. After the mounting seat 331 is fixed, the axis of the second volute 335 is parallel to the first side plate 321.

[0104] The mounting seat 331 is provided with an outlet 338 at the second communication position, and the outlet 338 communicates with the interior of the second volute 335. At least one axial end of the second volute 335 is provided with an inlet 337. During the operation of the fan, the air flow enters through the inlet 337 at one axial end of the second volute 335 and is discharged from the outlet 338 on the circumferential side of the second volute 335. The structure of the fan can further reduce the concentration of the wind field, improve the uniformity of the wind field, and thus effectively reduce the noise of the heat exchange system 30.

[0105] In the present application, the axis of the second volute 335 is arranged along the height direction a of the housing assembly 32. When the fan operates, the impeller rotates in the second volute 335, so that the air flow in the installation space 325 enters the second volute 335 through the inlet 337 on the second volute 335 in the height direction a of the housing assembly 32, and is discharged through the outlet 338 on the mounting seat 331 and the air outlet 3231 on the first side plate 321. With such an arrangement, the wind field in the installation space 325 can be further made more dispersed and uniform, thereby effectively reducing the noise during the operation of the fan assembly 33.

[0106] In some embodiments of the present application, the first volute 332 is of an integral structure or a split structure.

[0107] Specifically, by setting the first volute 332, the structure of the first volute 332 can be selected according to the processing requirements, thereby improving the flexibility of the structure.

[0108] For example, when the first volute 332 is of an integral structure, the first volute 332 can be processed and manufactured by casting, injection molding or 3D printing. In addition, the first volute 332 can be integrally formed with the mounting seat 331, or can be separately processed and then connected and fixed to the mounting seat 331 by welding, bonding, clamping or through a connecting member (such as a screw, etc.).

[0109] For example, as Figure 4 and Figure 5As shown, when the mounting base 331 is a plate-like member and the first volute 332 is a split structure, the first volute 332 includes a first part 3321, a second part 3322, and a first connection structure 3323. Among them, the first part 3321 is a semi-shell structure and is connected to the mounting base 331 (the connection methods include but are not limited to welding, bonding, clamping, connecting via a connecting member, or integrally forming). The second part 3322 is a semi-shell structure and is buckled with the first part 3321 and then connected and fixed via the first connection structure 3323. Among them, the first connection structure 3323 can be a first buckle or other structures. The first volute 332 is set as a structure combined with the three parts of the first part 3321, the second part 3322, and the first connection structure 3323, so as to reduce the processing difficulty of the first volute 332 and effectively improve the processing efficiency.

[0110] In some embodiments of the present application, the second volute 335 is an integral structure or a split structure.

[0111] Specifically, by setting the second volute 335, the structure of the first volute 332 can be selected according to the processing needs, thereby improving the flexibility of the structure.

[0112] For example, when the second volute 335 is an integral structure, the second volute 335 can be processed and manufactured by casting, injection molding, or 3D printing. In addition, the second volute 335 can be integrally formed with the mounting base 331, or can be separately processed and then connected and fixed to the mounting base 331 by welding, bonding, clamping, or via a connecting member (such as a screw, etc.).

[0113] For example, as Figure 4 and Figure 5 shown, when the mounting base 331 is a plate-like member and the second volute 335 is a split structure, the second volute 335 includes a third part 3351, a fourth part 3352, and a second connection structure 3353. Among them, the third part 3351 is a semi-shell structure and is connected to the mounting base 331 (the connection methods include but are not limited to welding, bonding, clamping, connecting via a connecting member, or integrally forming). The fourth part 3352 is a semi-shell structure and is buckled with the third part 3351 and then connected and fixed via the second connection structure 3353. Among them, the second connection structure 3353 can be a second buckle or other structures. The second volute 335 is set as a structure combined with the three parts of the third part 3351, the fourth part 3352, and the second connection structure 3353, so as to reduce the processing difficulty of the second volute 335 and effectively improve the processing efficiency.

[0114] In some embodiments of the present application, the housing assembly 32 further includes a bottom plate 324 and a support frame 323. The first side plate 321 and the second side plate 322 are respectively connected to the bottom plate 324. The support frame 323 is disposed between the first side plate 321 and the second side plate 322, and the support frame 323 is connected to at least one of the first side plate 321, the second side plate 322, and the bottom plate 324.

[0115] Specifically, a base and the support frame 323 are provided, and the first side plate 321 and the second side plate 322 are connected to at least one of the bottom plate 324 and the support frame 323, so as to form a stable housing assembly 32, improving the structural stability of the housing assembly 32 and reducing the situation of noise generated by the shaking of the housing assembly 32 during the operation of the fan.

[0116] As Figures 1 to 6 shown, in a second aspect of the present application, an energy storage device 100 includes a box body 10, a battery device 20, and a heat exchange system 30 as described above in accordance with the claims. The battery device 20 is disposed inside the box body 10. The heat exchange system 30 includes a refrigerant component 312 and a coolant component 311. The coolant component 311 includes a first heat exchange member 3111 and a second heat exchange member 3112. The first heat exchange member 3111 includes a first channel 31111 and a second channel 31112 that are not connected to each other. The first channel 31111 and the second channel 31112 are arranged to exchange heat with each other. The second heat exchange member 3112 is connected to the first channel 31111 and forms a coolant circuit. The second heat exchange member 3112 is used to exchange heat with the battery device. The refrigerant component 312 includes a third heat exchange member 3121. The third heat exchange member 3121 is connected to the second channel 31112 and forms a refrigerant circuit. The third heat exchange member 3121 is used to exchange heat with air.

[0117] Wherein, the refrigerant component 312 and at least part of the coolant component 311 are disposed inside the housing assembly 32 of the heat exchange system 30, and the fan assembly 33 cools the refrigerant component 312.

[0118] In the present application, the fan assembly 33 is installed in the installation space 325 of the housing assembly 32, and the installation space 325 is used to accommodate the fan assembly 33. When the fan assembly 33 operates, the housing assembly 32 can block the noise generated during the operation of the fan assembly 33, thereby reducing the transmission of the noise during the operation of the fan assembly 33 to the outside, and further reducing the overall noise during the operation of the heat exchange system 30.

[0119] In the present application, the heat exchange system 30 can be disposed inside the box body 10 or outside the box body 10.

[0120] In some embodiments of the present application, the heat exchange system 30 is disposed outside the box body 10. An exchanger for heat exchange with the battery device 20 is disposed inside the box body 10. The exchanger is connected to the medium flow path of the heat exchange assembly 31. When the heat exchange assembly 31 operates, the heat exchange medium is circulated to the position of the exchanger and exchanges heat with the battery device 20 through the exchanger. By disposing the heat exchange system 30 outside the box body 10, the occupation of the internal space of the box body 10 can be reduced, and thus the space utilization rate of the box body 10 can be improved.

[0121] In some embodiments of the present application, the heat exchange system 30 is disposed inside the box body 10. As Figure 1 shown, the box body 10 includes a first chamber 101 and a second chamber 102 that are isolated from each other. The battery device 20 is disposed in the first chamber 101, the housing assembly 32 is disposed in the second chamber 102, the refrigerant assembly 312 is disposed in the installation space 325 of the housing assembly 32, a part of the coolant assembly 311 is disposed in the first chamber 101 and is thermally connected to the battery device 20, and another part of the coolant assembly 311 is disposed in the installation space 325 and is thermally connected to the refrigerant assembly 312. The fan assembly 33 is at least used to drive the air flow to exchange heat with the refrigerant assembly 312.

[0122] In addition, the refrigerant assembly 312 further includes a compressor 3122 and a throttling element 3123 (such as a capillary tube or a throttle valve, etc.), and a third heat exchanger 3121 (such as a fin radiator or a plate heat exchanger, etc.). The throttling element 3123, the third heat exchanger 3121, and the compressor 3122 are respectively connected in series between the inlet and the outlet of the second channel 31112 of the first heat exchanger 3111 to form a refrigerant circuit. The coolant assembly 311 further includes a water pump 3113. The water pump and the second heat exchanger 3112 are respectively connected in series between the inlet and the outlet of the first channel 31111 of the first heat exchanger 3111 to form a coolant circuit.

[0123] The heat exchange system 30 can both heat and cool the battery device 20. When the current temperature of the battery device 20 is lower than the preset temperature range, the heat exchange system 30 heats the battery device 20. When the current temperature of the battery device 20 is higher than the preset temperature range, the heat exchange system 30 cools the battery device 20 (i.e., dissipates heat from the battery device 20).

[0124] The following takes the heat dissipation of the battery device 20 by the heat exchange system 30 as an example for specific description:

[0125] When the heat exchange system 30 exchanges heat with the battery device 20, the refrigerant circulation component operates, so that the refrigerant enters the second channel 31112 of the first heat exchanger. In the first heat exchanger, the refrigerant exchanges heat with the coolant passing through the first channel 31111 to cool down. The cooled coolant is driven by the water pump 3113 into the first chamber 101 and exchanges heat with the battery device 20 through the second heat exchanger. After heat exchange, the temperature of the coolant rises and returns to the first heat exchanger again to exchange heat with the refrigerant. The refrigerant flowing out through the first channel 31111 enters the third heat exchanger 3121 to exchange heat with the air to reduce the temperature of the refrigerant. The cooled refrigerant returns to the first channel 31111 again and participates in cooling the coolant again.

[0126] In the housing 10 of the present application, a plurality of battery devices 20 are included to increase the voltage and capacity of the energy storage device 100. The plurality of battery devices 20 are connected in series through a busbar component to increase the voltage of the energy storage device 100.

[0127] The battery device 20 (Battery Apparatus) mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly (Battery Cell Assembly) may include a plurality of battery cells, and the plurality of battery cells are connected in series, parallel or in a hybrid connection through a busbar component.

[0128] In some embodiments, the battery cell assembly (Battery Cell Assembly) is usually formed by arranging a plurality of battery cells.

[0129] As an example, the battery cell assembly may be a battery module (Battery Module), and the battery module is formed by arranging and fixing a plurality of battery cells into an independent module. As an example, the battery module can be formed by bundling a plurality of battery cells with cable ties.

[0130] In some embodiments, the battery device 20 may be a battery pack (battery Pack), and the battery pack includes a housing and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the housing.

[0131] In the present application, the housing may be a simple three-dimensional structure such as a separate cuboid, cylinder or sphere, or a complex three-dimensional structure composed of a combination of simple three-dimensional structures such as a cuboid, cylinder or sphere, etc. The material of the housing may be alloy materials such as steel, iron, aluminum alloy, ferroalloy, etc., or polymer materials such as polycarbonate, polyisocyanurate foam plastic, etc., or composite materials such as glass fiber reinforced epoxy resin, etc.

[0132] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be accommodated in the housing by fixing the battery module in the housing.

[0133] As an example, the battery cell assembly can also be accommodated in the housing by directly fixing a plurality of battery cells to the housing.

[0134] As an example, the housing can include a first part and a second part. The first part and the second part are snapped together so that a closed space is formed inside the housing to accommodate the battery cell assembly. Here, "closed" means covered or closed, which can be sealed or non-sealed. The first part can be a top cover or a bottom plate.

[0135] As an example, the housing can include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame so that a closed space is formed inside the housing to accommodate the battery cell assembly.

[0136] In some embodiments, when the battery device is used in a vehicle, the housing can be a part of the chassis structure of the vehicle. For example, a part of the housing can become at least a part of the floor of the vehicle, or a part of the housing can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0137] In some embodiments, when the number of battery devices 20 is multiple, the multiple battery devices 20 include two or more battery devices 20. The multiple battery devices 20 can be regularly arranged or irregularly arranged in the first chamber 101. In this application, a bracket is provided inside the first chamber 101, and the battery device 20 is arranged on the bracket so that the battery devices 20 are arranged in a rectangular array in the first chamber 101, so as to facilitate accommodating a larger number of battery devices 20 in the first chamber 101, thereby improving the energy density of the energy storage device 100.

[0138] A third aspect of this application proposes an electrical device, and the electrical device includes the energy storage device 100 as described above.

[0139] The electrical device has the energy storage device 100 as described above. The beneficial effects of the energy storage device 100 are the same as those of the energy storage device 100 as described above, and will not be elaborated herein.

[0140] It should be noted that in this application, the electrical device includes but is not limited to ships, cargo planes, passenger planes, or space shuttles, etc.

[0141] The above description is only an overview of the technical solution of this application. In order to be able to understand the technical means of this application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of this application more obvious and understandable, the following specifically illustrates the specific implementation manners of this application.

[0142] In an embodiment of the present application, as Figures 2 to 5 shown, the present application provides a heat exchange system 30, which includes a housing assembly 32, a heat exchange assembly 31, and a fan assembly 33. The housing assembly 32 includes an air inlet 3221, an air outlet 3231, and an installation space 325. The installation space 325 is provided inside the housing assembly 32 and is respectively communicated with the air inlet 3221 and the air outlet 3231. Part of the heat exchange assembly 31 is installed in the installation space 325, and the fan assembly 33 is installed in the installation space 325. The fan assembly 33 is configured to drive the air flow along the directions of the air inlet 3221, the installation space 325, and the air outlet 3231, so that the heat exchange assembly 31 exchanges heat with the air flow passing through the installation space 325.

[0143] Among them, the housing assembly 32 includes a first side plate 321 and a second side plate 322. The first side plate 321 and the second side plate 322 are opposite and spaced apart. The air outlet 3231 is opened on the first side plate 321, and the air inlet 3221 is opened on the second side plate 322. The fan assembly 33 includes two fans, and each fan is a centrifugal fan. The fan includes a mounting seat 331, a first volute 332, a first impeller 333, a second volute 335, a second impeller 336, and a driving member 334. The mounting seat 331 is installed on the first side plate 321. The first volute 332 is provided on the mounting seat 331. The circumferential side wall of the first volute 332 has a first communication position with the mounting seat 331. At the first communication position, the mounting seat 331 is provided with an outlet 338, and at least one axial end of the first volute 332 is provided with an inlet 337. The first impeller 333 is rotatably provided in the first volute 332. The driving member 334 includes a driving shaft, and the driving shaft is connected to the first impeller 333 and drives the first impeller 333 to rotate. The second volute 335 is provided on the mounting seat 331. Along the axial direction of the driving shaft, the second volute 335 and the first volute 332 are arranged on opposite sides of the driving member 334. The circumferential side wall of the second volute 335 has a second communication position with the mounting seat 331. At the second communication position, the mounting seat 331 is provided with an outlet 338, and at least one axial end of the second volute 335 is provided with an inlet 337. The second impeller 336 is rotatably provided in the second volute 335 and is connected to the driving shaft.

[0144] Further, both the first volute 332 and the second volute 335 are of split structures.

[0145] Further, the housing assembly 32 further includes a bottom plate 324 and a support frame 323. The first side plate 321 and the second side plate 322 are respectively connected to the bottom plate 324. The support frame 323 is provided between the first side plate 321 and the second side plate 322, and the support frame 323 is respectively connected to the first side plate 321, the second side plate 322, and the bottom plate 324.

[0146] Specifically, the fan assembly 33 is installed in the installation space 325 of the housing assembly 32, and the fan assembly 33 is accommodated by using the installation space 325. When the fan assembly 33 operates, the housing assembly 32 can block the noise generated during the operation of the fan assembly 33, so as to reduce the transmission of the noise during the operation of the fan assembly 33 to the outside, and further reduce the overall noise during the operation of the heat exchange system 30.

[0147] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A heat exchange system, characterized in that, The heat exchange system includes: A housing assembly, the housing assembly includes an air inlet, an air outlet and an installation space, the installation space is arranged inside the housing assembly and is respectively communicated with the air inlet and the air outlet; A heat exchange assembly, part of the heat exchange assembly is installed in the installation space; A fan assembly, the fan assembly is installed in the installation space, and the fan assembly is configured to drive air flow along the directions of the air inlet, the installation space and the air outlet, so that the heat exchange assembly exchanges heat with the air flow passing through the installation space.

2. The heat exchange system according to claim 1, wherein, The housing assembly includes a first side plate and a second side plate, the first side plate and the second side plate are opposite and spaced apart, the air outlet is opened on the first side plate, and the air inlet is opened on the second side plate.

3. The heat exchange system according to claim 2, characterized in that, The fan assembly is installed on the side of the first side plate facing the second side plate.

4. The heat exchange system according to claim 3, characterized in that, The fan assembly includes at least one fan, the fan includes an inlet and an outlet, the inlet is communicated with the air inlet through the installation space, and the outlet abuts against the first side plate and is communicated with the air outlet.

5. The heat exchange system according to claim 4, characterized in that, The number of the fans is two, the two fans are spaced apart, the number of the air outlets is the same as the number of the outlets, and they are arranged in one-to-one correspondence.

6. The heat exchange system according to claim 4, wherein The fan is a centrifugal fan.

7. The heat exchange system according to claim 6, wherein The fan includes: A mounting seat, the mounting seat is installed on the first side plate; A first volute, the first volute is arranged on the mounting seat, the circumferential side wall of the first volute has a first communication position with the mounting seat, at the first communication position, the mounting seat is provided with the outlet, and at least one axial end of the first volute is provided with the inlet; A first impeller, the first impeller is rotatably arranged in the first volute; A driving member, the driving member includes a driving shaft, the driving shaft is connected to the first impeller and drives the first impeller to rotate.

8. The heat exchange system according to claim 7, wherein, The fan further includes: A second volute, the second volute is arranged on the mounting seat, along the axial direction of the driving shaft, the second volute and the first volute are arranged on opposite sides of the driving member, the circumferential side wall of the second volute has a second communication position with the mounting seat, at the second communication position, the mounting seat is provided with the outlet, and at least one axial end of the second volute is provided with the inlet; A second impeller, the second impeller is rotatably arranged in the second volute and is connected to the driving shaft.

9. The heat exchange system according to claim 8, wherein The first volute is of an integral structure or a split structure; And / or, the second volute is of an integral structure or a split structure.

10. The heat exchange system according to claim 8, wherein, The housing assembly further includes: A bottom plate, the first side plate and the second side plate are respectively connected to the bottom plate; A support frame, the support frame is arranged between the first side plate and the second side plate, and the support frame is connected to at least one of the first side plate, the second side plate and the bottom plate.

11. An energy storage device, characterized in that, The energy storage device includes: A box body; A battery device, the battery device is arranged in the box body; The heat exchange system according to any one of claims 1 to 10, wherein the heat exchange component comprises a refrigerant component and a coolant component, the coolant component comprises a first heat exchanger and a second heat exchanger, the first heat exchanger comprises a first channel and a second channel that are not connected to each other, the first channel and the second channel are arranged to exchange heat with each other, the second heat exchanger is connected to the first channel to form a coolant loop, the second heat exchanger is used to exchange heat for the battery device, the refrigerant component comprises a third heat exchanger, the third heat exchanger is connected to the second channel to form a refrigerant loop, and the third heat exchanger is used to exchange heat with air.

12. An electrical device, characterized in that, The electrical equipment comprises the energy storage device according to claim 11.

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