energy storage device

Abstract

The application relates to the technical field of batteries, in particular to an energy storage device which comprises a shell, a first supporting component, a battery module, an inverter assembly and an air extraction component; wherein the first supporting component, the battery module and the inverter assembly are arranged in the shell; the shell is formed with an air inlet and an air outlet; the first supporting component is formed with a mounting space, the battery module is mounted in the mounting space; the inverter assembly is mounted on the outer wall of the first supporting component, and a first cooling air duct is formed between the inverter assembly and the outer wall of the first supporting component; the air extraction component is arranged inside the shell or outside the shell, and the air extraction component can drive air to enter from the air inlet, flow through the first cooling air duct and finally be discharged from the air outlet. It can be seen that the first cooling air duct is arranged between the first supporting component and the inverter assembly, so that the inverter assembly can be air-cooled, the cooling effect is improved, and the conversion efficiency of the inverter mainboard is ensured.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to an energy storage device. Background Technology

[0002] Currently, portable energy storage devices include supporting sheet metal parts, battery modules, and inverter components. The battery modules are installed in the mounting cavity of the supporting sheet metal parts, and the inverter mainboard of the inverter component is installed on the outer wall of the supporting sheet metal parts. In order to dissipate heat, thermal conductive adhesive or thermal conductive pads need to be placed between the inverter mainboard and the supporting sheet metal parts. The heat generated by the transformer components is then transferred to the supporting sheet metal parts through the thermal conductive adhesive or thermal conductive pads, and then dissipated through the supporting sheet metal parts for secondary heat conduction. This structure has a lot of heat conduction media, and there is no smooth airflow between the inverter board and the supporting sheet metal parts. Turbulence is easily formed inside the device, and heat cannot escape in time, which directly affects the conversion efficiency of the inverter mainboard. Utility Model Content

[0003] The purpose of this application is to provide an energy storage device that, to a certain extent, solves the technical problem in the prior art where thermally conductive adhesive or pads are placed between the inverter motherboard and the supporting sheet metal parts. This structure involves a large amount of heat transfer medium, lacks a smooth airflow between the inverter board and the supporting sheet metal parts, and easily forms eddies inside the device, preventing heat from dissipating in time and directly affecting the conversion efficiency of the inverter motherboard.

[0004] This application provides an energy storage device, including: a housing, a first support member, a battery module, an inverter assembly, and an exhaust member; wherein, the first support member, the battery module, and the inverter assembly are all disposed within the housing; the housing has an air inlet and an air outlet; the first support member has an installation space, and the battery module is installed within the installation space; the inverter assembly is installed on the outer wall of the first support member, and a first cooling air duct is formed between the inverter assembly and the outer wall of the first support member; the exhaust member is disposed inside or outside the housing, and the exhaust member can drive air to enter through the air inlet, flow through the first cooling air duct, and finally be discharged through the air outlet.

[0005] In the above technical solution, the inverter assembly further includes an inverter motherboard and electrical components connected to each other; wherein, the outer wall of the first support member has a support protrusion, the inverter motherboard is fixed to the side of the support protrusion away from the battery module, and a first cooling air duct is formed between the inverter motherboard and the first support member; the electrical components are disposed on the side of the inverter motherboard away from the first support member.

[0006] In any of the above technical solutions, the inverter motherboard and the support protrusion are further detachably connected by a first fastening member.

[0007] In any of the above technical solutions, the number of the supporting protrusions is four, and they are arranged in a square.

[0008] In any of the above technical solutions, the energy storage device further includes an insulating protective layer, which is disposed between the inverter main board and the first support member, and is fixed to the inverter main board or the first support member.

[0009] In any of the above technical solutions, further, along a first preset direction, the inverter component is installed on the outer wall of one side of the first support member.

[0010] In any of the above technical solutions, the air inlet, the first cooling air duct, and the air outlet are arranged sequentially along a direction perpendicular to the first preset direction, and the exhaust component is arranged corresponding to the air outlet.

[0011] In any of the above technical solutions, the air inlet and the air outlet are further disposed on opposite sides of the outer casing along its length or width direction.

[0012] In any of the above technical solutions, the first preset direction is further defined as the width direction of the battery module.

[0013] In any of the above technical solutions, the energy storage device further includes a second support member, and the second support member is installed between the battery module and the inner wall of the first support member on the side where the inverter component is installed, so that a second cooling air duct is formed between the battery module and the first support member; the exhaust member can drive air to enter from the air inlet, flow through the second cooling air duct, and finally be discharged from the air outlet.

[0014] In any of the above technical solutions, the second support member is further made of a heat-insulating material.

[0015] In any of the above technical solutions, the second support member is further provided on the side of the battery module that cooperates with the second support member and in the area near both sides.

[0016] In any of the above technical solutions, the second supporting member is further defined as a cuboid structure.

[0017] In any of the above technical solutions, the extraction component and the outer casing are further detachably connected by a second fastening component.

[0018] In any of the above technical solutions, the first support member and the outer shell are further detachably connected by a third fastening member.

[0019] Compared with the prior art, the beneficial effects of this application are as follows: The energy storage device provided in this application has a first cooling air duct between the first support member and the inverter assembly, and an air inlet and an air outlet are provided on the outer casing. It is also equipped with an exhaust member, such as a fan, which can drive air to enter through the air inlet, flow through the first cooling air duct, and finally be discharged through the air outlet to air cool the inverter assembly and ensure the conversion efficiency of the inverter motherboard.

[0020] A second support member is provided between the first support member and the battery module, thereby forming a second cooling air duct between the two, which enables air cooling and improves the cooling effect on the battery module. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the open end cover of the energy storage device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the internal structure of the energy storage device provided in the embodiments of this application; Figure 3 Another internal structure diagram of the energy storage device provided in the embodiments of this application; Figure 4 Another internal structure diagram of the energy storage device provided in the embodiments of this application; Figure 5 An assembly drawing of the first support member and the battery module provided in an embodiment of this application; Figure 6 Assembly diagram of the first support member, battery module, and insulating layer provided in the embodiments of this application; Figure 7 An assembly drawing of the first support member and the second support member provided in an embodiment of this application.

[0023] Figure label: 1-Outer shell, 11-Air inlet, 12-Air outlet, 2-First support component, 21-Support protrusion, 22-Bottom plate, 23-Side plate, 24-Top plate, 25-Limiting end plate, 3-Battery module, 4-First cooling duct, 5-Inverter assembly, 51-Inverter mainboard, 52-Electrical components, 6-Extraction component, 7-First fastening component, 8-Second support component, 9-Second cooling duct, 10-Insulating protective layer, a-First preset direction, b-Second preset direction, c-Third preset direction. Detailed Implementation

[0024] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0025] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0026] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] The following reference Figures 1 to 7 This application describes an energy storage device according to some embodiments.

[0030] See Figures 1 to 4 As shown, an embodiment of this application provides an energy storage device, including: a housing 1, a first support member 2, a battery module 3, an inverter assembly 5, and an exhaust member 6; wherein, the first support member 2, the battery module 3, and the inverter assembly 5 are all disposed within the housing 1; the housing 1 has an air inlet 11 and an air outlet 12; the first support member 2 has an installation space, and the battery module 3 is installed within the installation space; the inverter assembly 5 is installed on the outer wall of the first support member 2, and a first cooling air duct 4 is formed between the inverter assembly 5 and the outer wall of the first support member 2; the exhaust member 6, for example a fan, is disposed inside or outside the housing 1, and the exhaust member 6 can drive air to enter through the air inlet 11, flow through the first cooling air duct 4, and finally be discharged through the air outlet 12.

[0031] As can be seen from the structure described above, the energy storage device provided in this application has a first cooling air duct 4 between the first support member 2 and the inverter component 5, and an air inlet 11 and an air outlet 12 are provided on the outer casing 1. It is also equipped with an exhaust member 6, such as a fan. The exhaust member 6 can drive air to enter through the air inlet 11, flow through the first cooling air duct 4, and finally be discharged through the air outlet 12 to air cool the inverter component 5 and ensure the conversion efficiency of the inverter motherboard 51.

[0032] Furthermore, preferably, the drawer component 6 is disposed inside the housing 1, and the housing 1 also serves to protect the drawer component 6, helping to extend its service life. Of course, it is not limited to this; the drawer component 6 can also be disposed outside the housing 1, depending on actual needs.

[0033] In this embodiment, preferably, as follows: Figures 2 to 5 As shown, the inverter assembly 5 includes an inverter motherboard 51 and an electrical component 52 connected to each other; wherein, the outer wall of the first support member 2 has a support protrusion 21, the inverter motherboard 51 is fixed on the side of the support protrusion 21 away from the battery module 3, and the aforementioned first cooling air duct 4 is formed between the inverter motherboard 51 and the first support member 2; the electrical component 52 is disposed on the side of the inverter motherboard 51 opposite to the first support member 2. As can be seen from the structure described above, a support protrusion is provided on the first support member 2 to support the inverter motherboard 51, so that a first cooling air duct 4 is formed between the inverter motherboard 51 and the outer wall of the first support member 2, thereby achieving air cooling of the inverter component 5.

[0034] Furthermore, preferably, the supporting protrusion 21 and the first supporting member 2 can be connected by welding, or they can be integrally formed, depending on the actual needs.

[0035] Furthermore, preferably, the supporting protrusion 21 is a cylindrical structure. Of course, it is not limited to this and can also be a prismatic structure, etc., depending on the actual needs. In this embodiment, preferably, as follows: Figure 2 and Figure 4 As shown, the inverter mainboard 51 and the support protrusion 21 are detachably connected by a first fastening member 7, such as a screw or bolt. As described above, the inverter motherboard 51 and the support protrusion 21 are connected in a detachable manner, facilitating future disassembly and maintenance. It should be noted that the inverter motherboard 51 and the support protrusion 21 can also be connected using either a snap-fit ​​or a non-detachable method, depending on the specific requirements. In this embodiment, preferably, as follows: Figure 4 As shown, there are four supporting protrusions 21, which are arranged in a square. As can be seen from the structure described above, the four support protrusions 21 arranged in a square can provide stable support for the entire inverter motherboard 51. Of course, the number of support protrusions 21 is not limited to this; it can be less than four or more than four. Moreover, when there are multiple support protrusions 21, they can be arranged according to actual needs.

[0036] In this embodiment, preferably, as follows: Figure 6 As shown, the energy storage device also includes an insulating protective layer 10, which is disposed between the inverter main board 51 and the first support member 2, and is fixed to the inverter main board 51 or the first support member 2.

[0037] As can be seen from the structure described above, the first support member 2 is generally a sheet metal part. Therefore, an insulating protective layer 10 is provided on the side of it closest to the inverter mainboard 51 to provide insulation protection. Of course, this insulating protective layer 10 may not be provided. It should be noted that the aforementioned support protrusion 21 can also be made of metal. The area where the inverter mainboard 51 cooperates with the support protrusion 21 and the first fastening member 7 is insulated, which is an existing structure and will not be described in detail here.

[0038] Furthermore, preferably, the insulating protective layer 10 can be a PC sheet.

[0039] In this embodiment, preferably, as follows: Figure 3 and Figure 4 As shown, along the first preset direction a, the inverter assembly 5 is installed on the outer wall of one side of the first support member 2.

[0040] Furthermore, preferably, the first preset direction a is the width direction of the battery module 3, but of course, it is not limited to this. In this embodiment, preferably, as follows: Figure 1As shown, along the direction perpendicular to the first preset direction a, which is also the second preset direction b, the air inlet 11, the first cooling air duct 4, and the air outlet 12 are arranged in sequence, and the exhaust component 6 is arranged corresponding to the air outlet 12. As can be seen from the structure described above, the air inlet 11, the first cooling air duct 4, the exhaust component 6, and the air outlet 12 are located on the same straight line, which shortens the airflow distance and thus accelerates the cooling speed. Of course, this is not the only option; the positions of the above structure can be designed according to actual needs, as long as airflow within the first cooling air duct 4 can be achieved. Furthermore, preferably, the second preset direction b can be the length direction of the outer shell 1, but of course, it is not limited to this.

[0041] In this embodiment, preferably, as follows: Figure 1 As shown, the air inlet 11 and the air outlet 12 are respectively located on opposite sides of the outer casing 1 along its length. As can be seen from the structure described above, the air inlet 11 and the air outlet 12 are respectively arranged on opposite sides of the outer shell 1 along the length direction of the outer shell 1. This can increase the airflow distance in the first cooling air duct 4, thereby cooling a larger area and helping to improve the cooling effect. Moreover, the air inlet 11 and the air outlet 12 are not easily blocked.

[0042] Of course, it is not limited to the above. The air inlet 11 and the air outlet 12 can also be respectively set on opposite sides of the outer casing 1 along its width direction, depending on the actual needs.

[0043] In this embodiment, preferably, as follows: Figure 3 , Figure 4 and Figure 7 As shown, the energy storage device also includes a second support member 8, which is installed between the inner wall of the battery module 3 and the side of the first support member 2 where the inverter component 5 is installed, so that a second cooling air duct 9 is formed between the battery module 3 and the first support member 2; the exhaust member 6 can drive air to enter from the air inlet 11, flow through the second cooling air duct 9, and finally be discharged from the air outlet 12. As can be seen from the structure described above, the battery module 3 is supported on the side relative to the first support member 2 by the second support member 8, so that a second cooling air duct 9 can be formed between the two, thereby enabling air cooling and improving the cooling effect on the battery module 3. In this embodiment, preferably, as follows: Figure 7 As shown, the second support member 8 is made of heat-insulating material, which serves as a heat insulation agent.

[0044] Furthermore, preferably, the material of the second support member 8 is thermal insulation foam. Of course, it is not limited to this, and other materials can also be used for the second support member 8. Furthermore, preferably, the second support member 8 is a cuboid structure, and its length direction is the same as the length direction of the battery module 3, its thickness direction is the same as the width direction of the battery module 3, and its width direction is the same as the height direction of the battery module 3. Of course, it is not limited to this.

[0045] In this embodiment, preferably, as follows: Figure 7 As shown, the battery module 3 is provided with second support members 8 on the side and near both sides of the side where it cooperates with the second support member 8, which improves the support effect on the battery module 3, ensures that the width of the second cooling channel is consistent, helps to ensure the uniformity of cooling, and greatly improves the cooling effect.

[0046] Furthermore, preferably, along the direction perpendicular to the first preset direction a, that is, the third preset direction c, such as the height direction of the battery module 3, the areas near the two sides of the battery module 3 are respectively provided with second support members 8. Of course, it is not limited to this. In this embodiment, preferably, the extraction component 6 and the outer shell 1 are detachably connected by a second fastening component, such as a screw or bolt (not shown in the figure), which is a detachable connection method, which facilitates later maintenance. Of course, it is not limited to this, and the connection method can also be selected according to actual needs, such as snap-fit ​​or welding. In this embodiment, preferably, the first support member 2 and the outer shell 1 can also be connected by a third fastening member, such as a screw or bolt (not shown in the figure), which is a detachable connection method, facilitating later maintenance. Of course, it is not limited to this; other connection methods can be selected according to actual needs, such as snap-fit ​​or welding. In this embodiment, preferably, as follows: Figures 1 to 3 As shown, the first support member 2 includes a bottom plate 22, a side plate 23, a top plate 24, and a limiting end plate 25; wherein, the top plate 24 and the bottom plate 22 are connected to the top and bottom of the side plate 23, and the limiting end plates 25 are respectively connected to both sides of the side plate 23 along the length direction of the housing, thereby forming an installation space for installing the battery module 3; the aforementioned inverter assembly 5 is fixed on the outer wall of the side plate 23, and the aforementioned first cooling air duct 4 is formed between the inverter assembly 5 and the outer wall of the side plate 23, and the aforementioned second cooling air duct 9 is formed between the battery module 3 and the inner wall of the side plate 23.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An energy storage device, characterized in that, include: The device comprises a housing, a first supporting member, a battery module, an inverter assembly, and a deflector assembly; wherein the first supporting member, the battery module, and the inverter assembly are all disposed within the housing; the housing has an air inlet and an air outlet; the first supporting member has an installation space, and the battery module is installed within the installation space; the inverter assembly is installed on the outer wall of the first supporting member, and a first cooling air duct is formed between the inverter assembly and the outer wall of the first supporting member; the deflector assembly is disposed inside or outside the housing, and the deflector assembly can drive air to enter through the air inlet, flow through the first cooling air duct, and finally exit through the air outlet.

2. The energy storage device according to claim 1, characterized in that, The inverter assembly includes an inverter motherboard and electrical components connected to each other; wherein, the outer wall of the first support member has a support protrusion, the inverter motherboard is fixed to the side of the support protrusion away from the battery module, and a first cooling air duct is formed between the inverter motherboard and the first support member; the electrical components are disposed on the side of the inverter motherboard away from the first support member.

3. The energy storage device according to claim 2, characterized in that, The inverter motherboard and the support protrusion are detachably connected via a first fastening member.

4. The energy storage device according to claim 2, characterized in that, The number of the supporting protrusions is four, and they are arranged in a square pattern; and / or The energy storage device further includes an insulating protective layer, which is disposed between the inverter mainboard and the first support member, and is fixed to the inverter mainboard or the first support member.

5. The energy storage device according to claim 1, characterized in that, Along a first preset direction, the inverter assembly is mounted on the outer wall of one side of the first support member.

6. The energy storage device according to claim 5, characterized in that, Along a direction perpendicular to the first preset direction, the air inlet, the first cooling air duct, and the air outlet are arranged sequentially, and the exhaust component is arranged corresponding to the air outlet.

7. The energy storage device according to claim 6, characterized in that, The air inlet and the air outlet are respectively located on opposite sides of the outer casing along its length or width; and / or The first preset direction is the width direction of the battery module.

8. The energy storage device according to claim 1, characterized in that, The energy storage device further includes a second support member, which is installed between the battery module and the inner wall of the first support member on the side where the inverter component is installed, so that a second cooling air duct is formed between the battery module and the first support member; the exhaust member can drive air to enter through the air inlet, flow through the second cooling air duct, and finally be discharged through the air outlet.

9. The energy storage device according to claim 8, characterized in that, The second support member is made of a heat-insulating material; and / or The battery module has the second support member provided on its side portion, near both sides, where it mates with the second support member; and / or The second supporting component is a cuboid structure.

10. The energy storage device according to any one of claims 1 to 9, characterized in that, The extraction component is detachably connected to the housing via a second fastening component; and / or The first support member is detachably connected to the outer shell via a third fastening member.

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