Battery device, power utilization device and mounting bracket for battery device

Abstract

The utility model discloses a battery device, a power utilization device and a mounting bracket for the battery device, and relates to the technical field of batteries, the battery device comprises a battery module, the battery module comprises a battery module, a module end plate, a flexible circuit board and a temperature detection piece, the flexible circuit board is provided with a mounting part, the temperature detection piece is connected with the mounting part, and the battery module end plate is connected with the mounting part; the temperature detector is used for detecting the temperature of the battery module; the mounting bracket and the flexible circuit board are positioned on the same side of the battery module, the mounting bracket is mounted on the module end plate, and the mounting part is positioned on one side, deviating from the battery module, of the mounting bracket; and the fixing structure is fixedly connected with the mounting part, and the fixing structure is fixed on the mounting bracket. Therefore, by arranging the fixing structure which is fixed on the mounting bracket, the mounting part can be reliably fixed on the mounting bracket, so that the position stability of the temperature detection piece is improved, the detection precision of the temperature detection piece is favorably maintained, and the use reliability of the battery device is favorably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a battery device, a power consumption device and a mounting bracket for the battery device. BACKGROUND

[0002] In the related art, a battery module is arranged in the battery device, and a flexible circuit board of the battery module is provided with a temperature detection piece for detecting the temperature of a battery cell of the battery module. However, the position of the temperature detection piece is unstable, which reduces the accuracy of the detection result of the temperature detection piece and affects the use reliability of the battery device. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems in the prior art. To this end, one object of the present application is to provide a battery device which is beneficial to maintaining the detection accuracy of the temperature detection piece and thus improving the use reliability of the battery device.

[0004] The present application further provides a power consumption device.

[0005] The present application further provides a mounting bracket for the battery device.

[0006] In a first aspect, the embodiments of the present application provide a battery device, comprising:

[0007] a battery module, a module end plate, a flexible circuit board and a temperature detection piece, the battery module and the module end plate are arranged along a first direction, the flexible circuit board and the battery module are arranged along a second direction, the flexible circuit board has a mounting portion, the temperature detection piece is located on a side of the mounting portion facing the battery module and is connected with the mounting portion, the temperature detection piece is used for detecting the temperature of the battery module, and the first direction and the second direction are perpendicular;

[0008] a mounting bracket, the mounting bracket and the flexible circuit board are located on the same side of the battery module, and the mounting bracket is mounted on the module end plate, and the mounting portion is located on a side of the mounting bracket away from the battery module;

[0009] a fixing structure, the fixing structure is fixedly connected with the mounting portion, and the fixing structure is fixed to the mounting bracket.

[0010] In the above technical solution, by arranging the fixing structure, the fixing structure is fixed to the mounting bracket, which can reliably fix the mounting portion to the mounting bracket, thereby improving the position stability of the temperature detection piece, which is beneficial to maintaining the detection accuracy of the temperature detection piece and thus improving the use reliability of the battery device.

[0011] In some embodiments, the fixing structure is located on the side of the mounting portion facing the mounting support, and the fixing structure is formed with a first limiting hole, and at least part of the temperature detection member is located in the first limiting hole.

[0012] In the above technical solution, by arranging the fixing structure between the mounting portion and the mounting support, the fixing structure is conveniently fixedly connected with the mounting portion, and the fixing structure is also conveniently fixedly connected with the mounting support, thereby facilitating assembly of the battery device and improving the assembly efficiency of the battery device. By arranging the first limiting hole and locating at least part of the temperature detection member in the first limiting hole, the fixing structure can limit the temperature detection member when the inner side wall of the first limiting hole is in contact with the temperature detection member, thereby reducing the risk of radial movement of the temperature detection member along the first limiting hole, further improving the position stability of the temperature detection member, and more favorably maintaining the detection accuracy of the temperature detection member, and further more favorably improving the use reliability of the battery device.

[0013] In some embodiments, the fixing structure is formed with one of a fixing hole and a fixing column, the mounting support is formed with the other of the fixing hole and the fixing column, and the fixing column is assembled in the fixing hole to fix the fixing structure to the mounting support.

[0014] In the above technical solution, by forming the fixing structure with one of a fixing hole and a fixing column and forming the mounting support with the other of the fixing hole and the fixing column, the fixing structure and the mounting support are conveniently fixedly assembled, which is favorable for simplifying the structure of the battery device, thereby improving the assembly efficiency of the fixing structure and the mounting support, and the fixing hole and the fixing column are convenient to produce and manufacture, which is favorable for reducing the manufacturing difficulty of the fixing structure and the mounting support, thereby improving the production efficiency of the fixing structure and the mounting support.

[0015] In some embodiments, the battery device further comprises a heat conduction structure, the mounting support is formed with a second limiting hole, the second limiting hole and the temperature detection member are opposite along a second direction, at least part of the heat conduction structure is arranged in the second limiting hole and in contact with the battery module, and the heat conduction structure is also in contact with the temperature detection member.

[0016] In the above technical solution, by arranging the heat conduction structure, the heat conduction structure can conduct heat of the battery module to the temperature detection member, reduce heat loss in the heat conduction path, and further improve the detection accuracy of the temperature detection member, and at least part of the heat conduction structure is arranged in the second limiting hole, and the inner side wall of the second limiting hole can limit the heat conduction structure, thereby reliably limiting the heat conduction structure between the battery module and the temperature detection member, and further reliably conducting heat between the battery module and the temperature detection member by the heat conduction structure.

[0017] In some embodiments, the heat conduction structure is in contact with the inner side wall of the second limiting hole.

[0018] In the technical scheme, the heat conduction structure is in contact with the inner side wall of the second limiting hole, the risk of radial movement of the heat conduction structure in the second limiting hole is reduced, the position of the heat conduction structure is stable, the heat conduction structure can be reliably assembled between the battery module and the temperature detection member, and the position stability of the heat conduction structure is improved.

[0019] In some embodiments, the mounting bracket is formed with an assembly space, the flexible circuit board is connected with the low-voltage connector, and at least part of the low-voltage connector is assembled in the assembly space.

[0020] In the technical scheme, by assembling at least part of the low-voltage connector in the assembly space, the mounting bracket can limit the low-voltage connector, the position of the low-voltage connector is stable, the position of the flexible circuit board in the module is stable, the low-voltage connector can be reliably connected with the adapter, and the working reliability of the battery device is improved.

[0021] In some embodiments, the mounting bracket has a foolproof structure, and the foolproof structure is located on the side of the mounting bracket away from the battery module in the first direction.

[0022] In the technical scheme, by providing the foolproof structure, if the fitted signal acquisition element is installed reversely during the installation process, the fitted signal acquisition element cannot be assembled in place, the foolproof structure can ensure that the fitted signal acquisition element does not cause functional abnormalities due to reverse installation during the installation process, the assembly error of the fitted signal acquisition element can be effectively reduced, the production efficiency and product consistency are improved, and the signal acquisition reliability of the module is improved.

[0023] In some embodiments, the foolproof structure is a boss structure protruding away from the battery module in the first direction.

[0024] In the technical scheme, by setting the foolproof structure as a boss structure, the production of the foolproof structure is facilitated, the structure of the mounting bracket is simplified, and the production efficiency of the mounting bracket is improved.

[0025] In some embodiments, the side of the mounting bracket facing the module end plate is formed with a positioning column, the module end plate is formed with a positioning hole, and the positioning column is inserted into the positioning hole.

[0026] In the technical scheme, by inserting the positioning column into the positioning hole, the positioning column is in contact with the inner side wall of the positioning hole, the upwarping of the acquisition busbar at the end portion is limited, the risk of upwarping of the acquisition busbar in the reverse direction due to the mounting bracket fixing the flexible circuit board is reduced, and the overall structural stability of the battery module and the signal acquisition reliability are improved.

[0027] In a second aspect, the embodiments of the present application provide a power utilization device comprising the battery device.

[0028] In the technical solution, the battery device is installed on the power consumption device, and the reliability of the power consumption device is improved.

[0029] In a third aspect, the embodiments of the present application provide a mounting bracket for a battery device, the mounting bracket being used for being installed on a module end plate of the battery device, and the mounting bracket comprising:

[0030] The bracket body is formed with a fixing portion for fixing a flexible circuit board of the battery device, and the bracket body is further formed with a second limiting hole for installing a heat conduction structure of the battery device.

[0031] In the technical solution, the fixing portion is fixedly assembled with the fixing structure in the above-mentioned embodiments, the mounting portion in the above-mentioned embodiments can be reliably fixed to the mounting bracket, the position stability of the temperature detection member is improved, the detection accuracy of the temperature detection member is maintained, and the use reliability of the battery device is improved. In addition, the bracket body is formed with the second limiting hole, at least part of the heat conduction structure is arranged in the second limiting hole, the inner side wall of the second limiting hole can limit the heat conduction structure, the risk of deviation of the heat conduction structure is reduced, the heat conduction structure is reliably limited between the battery module and the temperature detection member, and the heat conduction structure reliably conducts heat between the battery module and the temperature detection member.

[0032] In some embodiments, the fixing portion is a fixing column.

[0033] In the technical solution, the fixing portion is a fixing column, the structure of the battery device is simplified, the assembly efficiency of the fixing structure and the mounting bracket is improved, the fixing column is convenient for production and manufacturing, the manufacturing difficulty of the mounting bracket is reduced, and the production efficiency of the mounting bracket is improved.

[0034] In some embodiments, the bracket body is formed with an assembly space for assembling a low-voltage connector connected with the flexible circuit board.

[0035] In the technical solution, the bracket body is formed with the assembly space, at least part of the low-voltage connector can be assembled in the assembly space, the mounting bracket can limit the low-voltage connector, the position of the low-voltage connector is stable, the position of the flexible circuit board in the module is stable, the low-voltage connector can be reliably connected with the adapter, and the working reliability of the battery device is improved.

[0036] In some embodiments, the mounting bracket further comprises a foolproof structure arranged along a first direction and fixed to the bracket body.

[0037] In the technical scheme, the foolproof structure is arranged, and if the matched signal collecting element is installed reversely, the matched signal collecting element cannot be assembled in place, so that the foolproof structure can ensure that the matched signal collecting element will not cause function abnormity due to reverse installation in the installation process, thereby effectively reducing the assembly error of the matched signal collecting element, and being beneficial to improving production efficiency and product consistency, and being beneficial to signal collecting reliability of the module.

[0038] In some embodiments, a positioning column is formed on one side of the bracket body in the second direction, and the positioning column is used for being inserted into a positioning hole of the module end plate.

[0039] In the technical scheme, the positioning column is inserted into the positioning hole, and the positioning column is in contact with the inner side wall of the positioning hole, which is beneficial to limiting the upward bending of the collecting busbar at the end, reducing the risk of upward bending of the collecting busbar in the reverse direction due to installation of the bracket for fixing the flexible circuit board, maintaining stable contact of the collecting busbar, and reducing poor contact or signal distortion caused by mechanical vibration or temperature change, thereby improving the overall structural stability of the battery module and the reliability of signal collection, and further improving the overall performance and service life of the battery module.

[0040] Additional aspects and advantages of the application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0041] The above and / or additional aspects and advantages of the application will become apparent and be readily appreciated from the following description, including the appended drawings, wherein:

[0042] Figure 1 is a schematic view of a vehicle according to an embodiment of the application;

[0043] Figure 2 is an exploded schematic view of a battery device according to an embodiment of the application;

[0044] Figure 3 is a schematic view of a partial structure of a battery module according to an embodiment of the application;

[0045] Figure 4 is Figure 3 is an enlarged view of A in FIG. 6;

[0046] Figure 5 is another angle schematic view of a partial structure of a battery module according to an embodiment of the application;

[0047] Figure 6 is a schematic view of a mounting bracket according to an embodiment of the application;

[0048] Figure 7 isFigure 6 Enlarged view at B;

[0049] Figure 8 is a sectional view of a mounting bracket according to an embodiment of the present application;

[0050] Figure 9 is a top view of a heat conduction structure according to an embodiment of the present application.

[0051] Reference signs:

[0052] Battery device 100;

[0053] Battery module 10; battery module 11; battery cell 111;

[0054] Module end plate 12;

[0055] Flexible circuit board 13; mounting portion 131; low-voltage connector 132;

[0056] Mounting bracket 20; fixing column 21; second limiting hole 22; assembly space 23; fool-proof structure 24; positioning column 25; bracket body 26;

[0057] Fixing structure 30;

[0058] Heat conduction structure 40;

[0059] Box 50; first box 51; second box 52;

[0060] Pressing plate 60;

[0061] Vehicle 200; controller 201; motor 202. DETAILED DESCRIPTION

[0062] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification herein is for describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, all terms used in disclosing the application, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The articles "a", "an", and "the" as used in this application and the appended claims should not be construed as meaning "one and only one unless specified otherwise by the context. The terms "comprise", "comprising", "comprises", "include", "including", and "includes" as used in this application and the appended claims are meant to be interpreted dynamically and are intended to be affixed the meaning similarly to the term "comprising" or the like. The terms "first", "second", "third", etc. as used in this application and the appended claims are meant to be interpreted as distinguishing one feature from another, and are not meant to be interpreted in a sequential order or a primary and secondary order.

[0064] Reference throughout this application to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of other embodiments.

[0065] In the description of the application, it is necessary to explain that, unless otherwise explicitly defined and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0066] The term "and / or" in this application is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, C and / or D, which can represent the three cases of C alone, C and D together, and D alone. In addition, the character " / " in this application generally represents that the front and rear associated objects have an "or" relationship.

[0067] In the embodiments of the application, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and width of various components in the embodiments of the application shown in the drawings, as well as the overall thickness, length and width of the integrated device, are only exemplary and should not constitute any limitation on the application.

[0068] Unless otherwise specified, all embodiments and optional embodiments of the application can be combined with each other to form new technical solutions.

[0069] "Multiple" appearing in this application means two or more (including two).

[0070] The battery device mentioned in the embodiments of the present application can include a plurality of battery modules, and each battery module can include a plurality of battery cells connected in series, in parallel, or in a mixed connection manner through a busbar component.

[0071] In some embodiments, the battery device includes a box body and a plurality of battery modules, and the plurality of battery modules are accommodated in the box body.

[0072] For example, the plurality of battery modules can be accommodated in the box body by being directly fixed to the box body.

[0073] For example, the box body can include a first box body and a second box body. The first box body and the second box body are buckled so that an installation cavity is formed inside the box body, and the installation cavity can accommodate the plurality of battery modules, i.e., the plurality of battery modules are installed in the installation cavity. Here, the closed refers to covered or closed, which can be sealed or unsealed. The first box body can be one of the upper box body and the lower box body, and the second box body can be the other of the upper box body and the lower box body.

[0074] In the embodiments of the present application, the battery cell can be a secondary battery, which refers to a battery cell that can be activated by charging after discharging.

[0075] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of the present application are not limited thereto.

[0076] The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, and the embodiments of the present application are not limited thereto. The battery cell is generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft package battery cells, and the embodiments of the present application are not limited thereto.

[0077] The battery cell includes a shell, an electrode assembly, and an electrolyte, the shell being used to accommodate the electrode assembly and the electrolyte. The electrode assembly is composed of an anode pole piece, a cathode pole piece, and a separator film. The battery cell mainly relies on the movement of metal ions between the anode pole piece and the cathode pole piece to work. The anode pole piece includes an anode current collector and an anode active material layer, the anode active material layer being coated on the surface of the anode current collector, the anode current collector without the anode active material layer protruding from the anode current collector with the anode active material layer, and the anode current collector without the anode active material layer serving as an anode tab. Taking a lithium ion battery as an example, the material of the anode current collector can be aluminum, and the anode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium, or lithium manganate, etc. The cathode pole piece includes a cathode current collector and a cathode active material layer, the cathode active material layer being coated on the surface of the cathode current collector, the cathode current collector without the cathode active material layer protruding from the cathode current collector with the cathode active material layer, and the cathode current collector without the cathode active material layer serving as a cathode tab. The material of the cathode current collector can be copper, and the cathode active material can be carbon or silicon, etc. In order to ensure that no fusing occurs when passing a large current, the number of anode tabs is multiple and stacked together, and the number of cathode tabs is multiple and stacked together.

[0078] The material of the separator film can be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly can be a roll structure or a laminated structure, and the embodiments of the present application are not limited thereto.

[0079] In recent years, vehicles have developed rapidly. Taking a new energy vehicle as an example, a battery device plays an irreplaceable important role as a core component of the vehicle.

[0080] In the related art, a battery module is arranged in the battery device, and a flexible circuit board of the battery module is provided with a temperature detection piece for detecting the temperature of a battery cell of the battery module. However, the position of the temperature detection piece is unstable, which reduces the accuracy of the detection result of the temperature detection piece and affects the use reliability of the battery device.

[0081] Based on the above considerations, in order to solve the problem of unstable position of the temperature detection piece, after deep research, a battery device is designed, which comprises: a battery module, a battery module, a flexible circuit board and a temperature detection piece, the battery module and the module end plate are arranged along the first direction, the flexible circuit board and the battery module are arranged along the second direction, the flexible circuit board has a mounting part, the temperature detection piece is located on the side of the mounting part facing the battery module and is connected with the mounting part, the temperature detection piece is used for detecting the temperature of the battery module, the first direction and the second direction are perpendicular;The mounting bracket and the flexible circuit board are located on the same side of the battery module, and the mounting bracket is installed on the module end plate, and the mounting part is located on the side of the mounting bracket away from the battery module;The fixing structure and the mounting part are fixedly connected, and the fixing structure is fixed to the mounting bracket. By setting the fixing structure, the fixing structure is fixed to the mounting bracket, the mounting part can be reliably fixed to the mounting bracket, so as to improve the position stability of the temperature detection piece, which is conducive to maintaining the detection accuracy of the temperature detection piece, and further conducive to improving the use reliability of the battery device.

[0082] Please refer to Figure 1 , Figure 1 The structural schematic diagram of the vehicle 200 is provided for some embodiments of the application. The vehicle 200 can be a fuel automobile or a new energy automobile, and the new energy automobile can be a pure electric vehicle, a hybrid vehicle or a range extended vehicle. The battery device 100 is installed on the chassis of the vehicle 200. The battery device 100 can be used for power supply of the vehicle 200, and the battery device 100 can be used as the operating power supply of the vehicle 200. The vehicle 200 can further comprise a controller 201 and a motor 202, and the controller 201 is used to control the battery device 100 to supply power to the motor 202, and is used for the working power demand of the vehicle 200 during starting, navigation and driving.

[0083] In some embodiments of the application, the battery device 100 can not only be used as the operating power supply of the vehicle 200, but also be used as the driving power supply of the vehicle 200, instead of or partially instead of fuel or natural gas to provide driving power for the vehicle 200.

[0084] The battery device 100 according to the embodiments of the application is described below with reference to Figures 2-8

[0085] As Figures 2-8 ​As shown, the battery device 100 according to the embodiment of the application comprises: a battery module 10, the battery module 10 comprising a battery module 11, a module end plate 12, a flexible circuit board 13 and a temperature detection piece (not shown in the figure), the battery module 11 and the module end plate 12 are arranged along a first direction, the flexible circuit board 13 and the battery module 11 are arranged along a second direction, the flexible circuit board 13 has a mounting portion 131, the temperature detection piece is located on the side of the mounting portion 131 facing the battery module 11 and is connected with the mounting portion 131, the temperature detection piece is used for detecting the temperature of the battery module 11, and the first direction and the second direction are perpendicular; a mounting bracket 20, the mounting bracket 20 and the flexible circuit board 13 are located on the same side of the battery module 11, and the mounting bracket 20 is mounted on the module end plate 12, and the mounting portion 131 is located on the side of the mounting bracket 20 away from the battery module 11; a fixing structure 30, the fixing structure 30 and the mounting portion 131 are fixedly connected, and the fixing structure 30 is fixed to the mounting bracket 20.

[0086] The battery device 100 can further comprise: a box body 50, the box body 50 can comprise a first box body 51 and a second box body 52. The first box body 51 and the second box body 52 are buckled so that an installation cavity is formed inside the box body 50, the installation cavity can accommodate the battery module 10, and the battery module 10 is installed in the installation cavity. The first box body 51 can be one of the upper box body and the lower box body, the second box body 52 can be the other one of the upper box body and the lower box body, and the second box body 52 is taken as the lower box body for example in the application. The number of the battery module 10 can be one, two, three, four or the like, and the battery module 10 is taken as an example with multiple in the application, that is, the number of the battery module 10 is greater than or equal to two.

[0087] The battery module 10 comprises the battery module 11, the module end plate 12, the flexible circuit board 13 and the temperature detection piece, the battery module 11 comprises a plurality of battery monomers 111, and the plurality of battery monomers 111 are arranged to form the battery module 11. The battery module 11 and the module end plate 12 are arranged along a first direction, such as Figure 3 As shown, the first direction is the X direction in Figure 3 , and the battery module 11 comprising a plurality of battery monomers 111 can be arranged along the first direction. The module end plate 12 can be in contact with the corresponding battery monomer 111 located at the end. The flexible circuit board 13 and the battery module 11 are arranged along a second direction, such as Figure 3 As shown, the second direction is the Y direction in Figure 3The Z direction, the first direction and the second direction are perpendicular. The flexible circuit board 13 can be located above the battery module 11. The flexible circuit board 13 has a mounting portion 131, which is a part of the structure of the flexible circuit board 13, and the temperature detection member is located on the side of the mounting portion 131 facing the battery module 11 along the second direction, and the temperature detection member is connected with the mounting portion 131, and the temperature detection member can be in communication connection with the mounting portion 131, and the temperature detection member can also be in electrical connection with the mounting portion 131. The temperature detection member is used to detect the temperature of the battery module 11, and the temperature detection member can be used to detect the temperature of the battery cell 111 opposite to the temperature detection member along the second direction.

[0088] Along the second direction, the mounting bracket 20 and the flexible circuit board 13 are located on the same side of the battery module 11, the mounting bracket 20 is located above the battery module 11, and the mounting bracket 20 is mounted on the module end plate 12. The mounting bracket 20 can be mounted on the module end plate 12. Exemplarily, the mounting bracket 20 can be clamped and fixed on the module end plate 12, and the mounting bracket 20 can also be fixed on the module end plate 12 by bolts, but the present application is not limited thereto, and the mounting manner of the mounting bracket 20 and the module end plate 12 is not specifically limited, as long as the mounting bracket 20 is mounted on the module end plate 12. The mounting portion 131 is located on the side of the mounting bracket 20 away from the battery module 11, that is, as shown in the figure, the mounting portion 131 is located on the upper side of the mounting bracket 20, and the battery module 11 is located on the lower side of the mounting bracket 20. Figure 3

[0089] The fixing structure 30 and the mounting portion 131 are fixedly connected, and the fixing structure 30 and the mounting portion 131 can be fixedly connected by bonding, the fixing structure 30 and the mounting portion 131 can also be fixedly connected by welding, and the fixing structure 30 and the mounting portion 131 can also be fixedly connected by clamping. The fixing manner of the fixing structure 30 and the mounting portion 131 is not specifically limited, as long as the fixing structure 30 and the mounting portion 131 are fixedly connected. By fixedly connecting the fixing structure 30 and the mounting portion 131, the relative position of the fixing structure 30 and the mounting portion 131 can be fixed, the risk of relative displacement of the fixing structure 30 and the mounting portion 131 can be reduced, and the temperature detection member and the mounting portion 131 are connected, which can reduce the risk of relative displacement of the temperature detection member and the fixing structure 30.

[0090] ​The fixing structure 30 is fixed to the mounting bracket 20. The fixing structure 30 and the mounting bracket 20 can be fixedly connected by adhesive, welding, or snap-fit. The fixing method is not specifically limited, as long as the fixing structure 30 and the mounting bracket 20 are securely connected. By fixing the fixing structure 30 to the mounting bracket 20, the fixing structure 30 and the mounting part 131 can be reliably fixed to the mounting bracket 20, thereby improving the positional stability of the temperature sensing element, maintaining the detection accuracy of the temperature sensing element, and ultimately improving the reliability of the battery device 100.

[0091] It should be noted that by assembling the fixed structure 30, the mounting part 131 and the mounting bracket 20 together, stable support and precise positioning of the temperature detection element are achieved, the position of the temperature detection element is kept fixed during operation, and the stability of the temperature detection element under vibration is improved. This enables the temperature detection element to maintain high-precision temperature measurement under complex working conditions, providing a solid technical guarantee for the reliable operation of the battery device 100.

[0092] In the above technical solution, by setting a fixing structure 30, which is fixed to the mounting bracket 20, the mounting part 131 can be reliably fixed to the mounting bracket 20, thereby improving the positional stability of the temperature detection element, which is beneficial to maintaining the detection accuracy of the temperature detection element, and thus improving the reliability of the battery device 100.

[0093] According to some embodiments of this application, the fixing structure 30 is located on the side of the mounting portion 131 facing the mounting bracket 20, and the fixing structure 30 has a first limiting hole (not shown in the figure), and at least a portion of the temperature sensing element is located in the first limiting hole.

[0094] Among them, such as Figure 4 As shown, the fixing structure 30 is located on the side of the mounting portion 131 facing the mounting bracket 20. In other words, along the second direction, the fixing structure 30 is located between the mounting portion 131 and the mounting bracket 20, and the fixing structure 30 is fixedly connected to both the mounting portion 131 and the mounting bracket 20. By placing the fixing structure 30 between the mounting portion 131 and the mounting bracket 20, it is convenient to fix the fixing structure 30 to the mounting portion 131 and to the mounting bracket 20, thereby facilitating the assembly of the battery device 100 and improving the assembly efficiency of the battery device 100.

[0095] The fixing structure 30 is formed with a first limiting hole, the first limiting hole can penetrate through the fixing structure 30 along a second direction, and part of the structure of the temperature detection member is located in the first limiting hole, or the whole structure of the temperature detection member is located in the first limiting hole. When the inner side wall of the first limiting hole is in contact with the temperature detection member, the fixing structure 30 can limit the temperature detection member, reduce the risk of radial movement of the temperature detection member along the first limiting hole, thereby further improving the position stability of the temperature detection member, and more conducive to maintaining the detection accuracy of the temperature detection member, thereby more conducive to improving the use reliability of the battery device 100.

[0096] In the above technical solution, by arranging the fixing structure 30 between the mounting portion 131 and the mounting bracket 20, the fixing structure 30 is conveniently fixedly connected with the mounting portion 131, and the fixing structure 30 is also conveniently fixedly connected with the mounting bracket 20, thereby facilitating the assembly of the battery device 100 and being conducive to improving the assembly efficiency of the battery device 100. By arranging the first limiting hole, at least part of the temperature detection member is located in the first limiting hole, and when the inner side wall of the first limiting hole is in contact with the temperature detection member, the fixing structure 30 can limit the temperature detection member, reduce the risk of radial movement of the temperature detection member along the first limiting hole, thereby further improving the position stability of the temperature detection member, and more conducive to maintaining the detection accuracy of the temperature detection member, thereby more conducive to improving the use reliability of the battery device 100.

[0097] According to some embodiments of the present application, the fixing structure 30 is formed with one of a fixing hole (not shown in the figure) and a fixing column 21, the mounting bracket 20 is formed with the other one of the fixing hole and the fixing column 21, and the fixing column 21 is assembled in the fixing hole to fix the fixing structure 30 to the mounting bracket 20.

[0098] Among them, when the fixing structure 30 is formed with the fixing hole, the mounting bracket 20 is formed with the fixing column 21 (as shown in Figure 6 When the fixing structure 30 is formed with the fixing column 21, the mounting bracket 20 is formed with the fixing hole. The present application takes the fixing structure 30 formed with the fixing hole and the mounting bracket 20 formed with the fixing column 21 as an example for description. As an example, the fixing column 21 is arranged in the fixing hole, and the fixing column 21 is interference-fitted in the fixing hole, so that the fixing structure 30 is fixed to the mounting bracket 20. As another example, the fixing column 21 is arranged in the fixing hole, and the outer peripheral wall of the fixing column 21 is formed with external threads, and the fixing structure 30 is fixed to the mounting bracket 20 by arranging a nut on the fixing column 21. As another example, the fixing column 21 is assembled in the fixing hole by riveting, so that the fixing structure 30 is fixed to the mounting bracket 20.

[0099] In the technical scheme, one of the fixing hole and the fixing column 21 is formed in the fixing structure 30, and the other of the fixing hole and the fixing column 21 is formed in the mounting bracket 20, so that the fixing structure 30 and the mounting bracket 20 can be fixed and assembled conveniently, the structure of the battery device 100 is simplified, the assembly efficiency of the fixing structure 30 and the mounting bracket 20 is improved, the fixing hole and the fixing column 21 are convenient to produce and manufacture, the manufacturing difficulty of the fixing structure 30 and the mounting bracket 20 is reduced, and the production efficiency of the fixing structure 30 and the mounting bracket 20 is improved.

[0100] According to some embodiments of the present application, as shown in Figure 6 and Figure 9 The battery device 100 further includes a heat conduction structure 40, the mounting bracket 20 is formed with a second limiting hole 22, the second limiting hole 22 and the temperature detection member are opposite along a second direction, at least part of the heat conduction structure 40 is arranged in the second limiting hole 22 and contacts the battery module 11, and the heat conduction structure 40 further contacts the temperature detection member.

[0101] As shown in Figure 9 , the battery device 100 can further include a heat conduction structure 40, the heat conduction structure 40 can be a heat conduction adhesive, the heat conduction structure 40 can also be a heat conduction sheet, the heat conduction sheet can be made of a metal material, but the present application is not limited thereto, the heat conduction structure 40 can also be composed of other structures as long as the heat conduction structure 40 has a heat conduction effect. As shown in Figure 7 , the mounting bracket 20 is formed with a second limiting hole 22, the second limiting hole 22 penetrates the mounting bracket 20 along a second direction, and the second limiting hole 22 and the temperature detection member are arranged opposite along the second direction. Part of the structure of the heat conduction structure 40 is arranged in the second limiting hole 22, or the whole structure of the heat conduction structure 40 is arranged in the second limiting hole 22. The heat conduction structure 40 contacts the corresponding battery monomer 111 of the battery module 11, the heat conduction structure 40 is located between the corresponding battery monomer 111 and the temperature detection member, and the heat conduction structure 40 further contacts the temperature detection member.

[0102] In the technical scheme, by arranging the heat conduction structure 40, the heat conduction structure 40 can conduct the heat of the battery module 11 to the temperature detection member, reduce the heat loss in the heat conduction path, further improve the detection accuracy of the temperature detection member, and at least part of the heat conduction structure 40 is arranged in the second limiting hole 22, the inner side wall of the second limiting hole 22 contacts the heat conduction structure 40, the inner side wall of the second limiting hole 22 can limit the heat conduction structure 40, the risk of deviation of the heat conduction structure 40 is reduced, the heat conduction structure 40 is reliably limited between the battery module 11 and the temperature detection member, and the heat conduction structure 40 reliably conducts heat between the battery module 11 and the temperature detection member.

[0103] According to some embodiments of the present application, the outer circumferential wall of the heat conduction structure 40 is in contact with the inner side wall of the second limiting hole 22.

[0104] In the above technical solution, by the outer circumferential wall of the heat conduction structure 40 being in contact with the inner side wall of the second limiting hole 22, the shape of the heat conduction structure 40 can be adapted to the shape of the second limiting hole 22, and after the heat conduction structure 40 is assembled in the second limiting hole 22, the outer circumferential wall of the heat conduction structure 40 is in close contact with the inner side wall of the second limiting hole 22.

[0105] In the above technical solution, by the outer circumferential wall of the heat conduction structure 40 being in contact with the inner side wall of the second limiting hole 22, the shape of the heat conduction structure 40 can be adapted to the shape of the second limiting hole 22, and after the heat conduction structure 40 is assembled in the second limiting hole 22, the outer circumferential wall of the heat conduction structure 40 is in close contact with the inner side wall of the second limiting hole 22.

[0106] According to some embodiments of the present application, as shown in Figure 3 , Figure 5 and Figure 6 , the mounting bracket 20 is formed with an assembly space 23, the flexible circuit board 13 is connected with a low-voltage connector 132, and at least part of the low-voltage connector 132 is assembled in the assembly space 23.

[0107] In the above technical solution, by the outer circumferential wall of the heat conduction structure 40 being in contact with the inner side wall of the second limiting hole 22, the shape of the heat conduction structure 40 can be adapted to the shape of the second limiting hole 22, and after the heat conduction structure 40 is assembled in the second limiting hole 22, the outer circumferential wall of the heat conduction structure 40 is in close contact with the inner side wall of the second limiting hole 22. Figure 3 In the above technical solution, by the outer circumferential wall of the heat conduction structure 40 being in contact with the inner side wall of the second limiting hole 22, the shape of the heat conduction structure 40 can be adapted to the shape of the second limiting hole 22, and after the heat conduction structure 40 is assembled in the second limiting hole 22, the outer circumferential wall of the heat conduction structure 40 is in close contact with the inner side wall of the second limiting hole 22.

[0108] In the above technical solution, by the outer circumferential wall of the heat conduction structure 40 being in contact with the inner side wall of the second limiting hole 22, the shape of the heat conduction structure 40 can be adapted to the shape of the second limiting hole 22, and after the heat conduction structure 40 is assembled in the second limiting hole 22, the outer circumferential wall of the heat conduction structure 40 is in close contact with the inner side wall of the second limiting hole 22.

[0109] According to some embodiments of the present application, as shown in Figure 3 and Figure 4As shown, the battery device 100 can further include a pressing plate 60 located on the side of the mounting bracket 20 away from the battery module 11, in other words, on the top of the mounting bracket 20, along the second direction. Along the second direction, the end of the assembly space 23 away from the module end plate 12 can be open, and the low-voltage connector 132 is assembled in the corresponding assembly space 23. The pressing plate 60 blocks the open end of the assembly space 23 away from the module end plate 12, and the pressing plate 60 is fixedly connected to the mounting bracket 20 by bolts. The pressing plate 60 can limit the corresponding low-voltage connector 132, and the pressing plate 60 can limit the low-voltage connector 132 from moving out of the assembly space 23, so that the low-voltage connector 132 is more reliably assembled in the assembly space 23.

[0110] According to some embodiments of the present application, as shown in Figure 3 and Figure 6 As shown, the mounting bracket 20 can be formed with a plurality of assembly spaces 23, and the flexible circuit board 13 can be connected with a plurality of low-voltage connectors 132. The plurality of low-voltage connectors 132 and the plurality of assembly spaces 23 are one-to-one assembled, and one low-voltage connector 132 is installed in one assembly space 23. Such a configuration can satisfy the installation requirements of multiple low-voltage connectors 132 at the same time, which is beneficial to improve the working performance of the mounting bracket 20.

[0111] According to some embodiments of the present application, as shown in Figure 3 and Figure 6 As shown, the mounting bracket 20 has a foolproof structure 24 located on the side of the mounting bracket 20 away from the battery module 11 along the first direction.

[0112] Among them, along the first direction, the side of the mounting bracket 20 away from the battery module 11 has a foolproof structure 24. Exemplarily, the foolproof structure 24 can be integrally formed with the mounting bracket 20. The specific shape of the foolproof structure 24 is reasonably selected according to actual needs, which is not limited here.

[0113] In the above technical solution, by setting the foolproof structure 24, if the matched signal collecting element is installed reversely during the installation process, the matched signal collecting element cannot be assembled in place. Therefore, the foolproof structure 24 can ensure that the matched signal collecting element will not cause functional abnormalities due to reverse installation during the installation process, thereby effectively reducing the assembly errors of the matched signal collecting element, improving the production efficiency and product consistency, and improving the signal collecting reliability of the module.

[0114] According to some embodiments of the present application, as shown in Figure 3 and Figure 6 As shown, the foolproof structure 24 is a boss structure protruding away from the battery module 11 along the first direction.

[0115] In the technical solution, the fool-proof structure 24 is provided as a boss structure, which facilitates the production of the fool-proof structure 24, is conducive to simplifying the structure of the mounting bracket 20, and is conducive to improving the production efficiency of the mounting bracket 20.

[0116] According to some embodiments of the present application, as shown in Figure 8 The mounting bracket 20 is provided with a positioning column 25 on the side facing the module end plate 12, and the module end plate 12 is provided with a positioning hole, and the positioning column 25 is inserted into the positioning hole.

[0117] In the technical solution, the fool-proof structure 24 is provided as a boss structure, which facilitates the production of the fool-proof structure 24, is conducive to simplifying the structure of the mounting bracket 20, and is conducive to improving the production efficiency of the mounting bracket 20.

[0118] In the technical solution, the fool-proof structure 24 is provided as a boss structure, which facilitates the production of the fool-proof structure 24, is conducive to simplifying the structure of the mounting bracket 20, and is conducive to improving the production efficiency of the mounting bracket 20.

[0119] It should be noted that the mounting bracket 20 of the present application is provided with a positioning column 25, which is inserted into a positioning hole, effectively reducing the displacement of the collection busbar when it is raised in the opposite direction, while providing stable anti-pulling force for the low-voltage connector 132, ensuring that the connector does not accidentally come out during plugging, thereby improving the connection reliability of the entire system. In addition, the mounting bracket 20 of the present application is provided with a fool-proof structure 24, which uses mechanical limiting to prevent the assembly of the collection signal element from being installed in the wrong direction, thereby reducing the occurrence of incorrect assembly. The fool-proof structure 24 not only improves the accuracy during assembly, but also simplifies the manual inspection process, significantly improving production efficiency and product quality.

[0120] And, the mounting bracket 20 of the battery module 10 of the present application realizes stable fixation of key components by integrating the flexible circuit board 13, the low-voltage connector 132 and the temperature detection member. By integrating the fixation function and the foolproof function in the same mounting bracket 20, the design improves the system integration while effectively enhancing the stability and safety of the overall assembly, fully meeting the assembly requirements of high precision and high reliability. Not only does it simplify the structure of the battery module 10, but it also reduces production costs and assembly complexity, and improves the overall reliability and stability. The design of the mounting bracket 20 fully meets the requirements of integration and reliability of the double-stacking module end.

[0121] As shown in Figure 1 , the power utilization device according to the embodiment of the present application includes the battery device 100 of the above embodiment. By installing the battery device 100 in the power utilization device, the reliability of the power utilization device is improved.

[0122] As shown in Figures 3-8 , the mounting bracket 20 for the battery device 100 according to the embodiment of the present application is used to install the module end plate 12 of the battery device 100. The mounting bracket 20 includes a bracket body 26. The bracket body 26 is formed with a fixing portion for fixing the flexible circuit board 13 of the battery device 100. The bracket body 26 is also formed with a second limiting hole 22 for installing the heat-conducting structure 40 of the battery device 100.

[0123] The mounting bracket 20 includes a bracket body 26. The bracket body 26 is formed with a fixing portion for fixing the flexible circuit board 13 of the battery device 100. The fixing portion is used for fixed assembly with the fixing structure 30 in the above embodiment. The fixing portion can be one of the fixing hole and the fixing column 21 in the above embodiment. The bracket body 26 is also formed with a second limiting hole 22, which is the second limiting hole 22 in the above embodiment. The second limiting hole 22 is used for installing the heat-conducting structure 40 of the battery device 100, which is the heat-conducting structure 40 in the above embodiment.

[0124] In the technical scheme, the fixing part is fixedly assembled with the fixing structure 30 in the above embodiment, the mounting part 131 in the above embodiment can be reliably fixed to the mounting bracket 20, the position stability of the temperature detection member is improved, the detection precision of the temperature detection member is maintained, and the use reliability of the battery device 100 is improved. In addition, the second limiting hole 22 is formed in the bracket body 26, at least part of the heat conduction structure 40 is arranged in the second limiting hole 22, the inner side wall of the second limiting hole 22 can limit the heat conduction structure 40, the risk of deviation of the heat conduction structure 40 is reduced, the heat conduction structure 40 is reliably limited between the battery module 11 and the temperature detection member, and the heat conduction structure 40 reliably conducts heat between the battery module 11 and the temperature detection member.

[0125] According to some embodiments of the present application, the fixing part is a fixing column 21.

[0126] As shown in the above embodiment, the fixing column 21 is the fixing column 21 in the above embodiment. Figure 6

[0127] In the technical scheme, the fixing part is a fixing column 21, which is beneficial to simplify the structure of the battery device 100, improve the assembly efficiency of the fixing structure 30 and the mounting bracket 20, and facilitate the production of the fixing column 21, thereby reducing the manufacturing difficulty of the mounting bracket 20 and improving the production efficiency of the mounting bracket 20.

[0128] According to some embodiments of the present application, the bracket body 26 forms an assembly space 23, and the assembly space 23 is used to assemble a low-voltage connector 132 connected to the flexible circuit board 13.

[0129] In the technical scheme, the bracket body 26 forms an assembly space 23, and the assembly space 23 is used to assemble a low-voltage connector 132 connected to the flexible circuit board 13.

[0130] In the technical scheme, the bracket body 26 forms an assembly space 23, and the assembly space 23 is used to assemble a low-voltage connector 132 connected to the flexible circuit board 13.

[0131] According to some embodiments of the present application, as shown in the above embodiment, the bracket body 26 forms an assembly space 23, and the assembly space 23 is used to assemble a low-voltage connector 132 connected to the flexible circuit board 13. Figure 6 ​As shown, the mounting bracket 20 further comprises a fool-proof structure 24 arranged along the first direction and fixed to the bracket body 26.

[0132] In the above technical solution, the mounting bracket 20 further comprises a fool-proof structure 24, the fool-proof structure 24 is the fool-proof structure 24 in the above embodiment, the fool-proof structure 24 and the bracket body 26 are arranged along the first direction, the fool-proof structure 24 is fixed to the bracket body 26, and the fool-proof structure 24 and the bracket body 26 can be integrally formed. Along the first direction, the side of the bracket body 26 away from the battery module 11 has the fool-proof structure 24.

[0133] In the above technical solution, by arranging the fool-proof structure 24, if the matched signal collecting element is installed reversely during the installation process, the matched signal collecting element cannot be assembled in place, and thus the fool-proof structure 24 can ensure that the matched signal collecting element will not cause functional abnormalities due to reverse installation during the installation process, thereby effectively reducing the assembly error of the matched signal collecting element, improving the production efficiency and product consistency, and being beneficial to the signal collecting reliability of the module.

[0134] According to some embodiments of the present application, along the second direction, one side of the bracket body 26 is formed with a positioning column 25, and the positioning column 25 is used for being inserted into a positioning hole of the module end plate 12.

[0135] In the above technical solution, along the second direction, one side of the bracket body 26 facing the module end plate 12 is formed with at least one positioning column 25, the positioning column 25 is arranged along the second direction, the module end plate 12 is formed with a positioning hole extending along the second direction, the upper end of the positioning hole extends to the upper end of the module end plate 12, at least part of the positioning column 25 is inserted into the positioning hole, and the shape of the positioning column 25 can be adapted to the shape of the positioning hole. For example, the positioning column 25 can be assembled in the positioning hole by interference. As another example, after the positioning column 25 is assembled in the positioning hole, the positioning column 25 can also be gap-fitted with the module end plate 12.

[0136] In the above technical solution, by inserting the positioning column 25 into the positioning hole, the positioning column 25 is in contact with the inner side wall of the positioning hole, which is beneficial to limiting the end collecting busbar from being raised, reducing the risk of the collecting busbar being raised in the reverse direction due to the mounting bracket 20 fixing the flexible circuit board 13, maintaining the stable contact of the collecting busbar, and reducing the contact failure or signal distortion caused by mechanical vibration or temperature change, thereby improving the overall structural stability of the battery module 10 and the reliability of signal collection, and further improving the overall performance and service life of the battery module 10.

[0137] According to some embodiments of the present application, referring to Figures 3-6As shown, this application provides a battery device 100, including: a battery module 10, a mounting bracket 20, and a fixing structure 30. The battery module 10 is a dual-module. The battery module 10 includes battery modules 11, module end plates 12, flexible circuit boards 13, and temperature detection components. There are two battery modules 11 and four module end plates 12, as shown. Figure 3 As shown, the two battery modules 11 are arranged along a third direction, which is... Figure 3 The battery module 11 is positioned in the Y direction. Each battery module 11 is correspondingly disposed with two module end plates 12, which are opposite to and spaced apart along the first direction, with the battery module 11 located between the corresponding two module end plates 12. The flexible circuit board 13 and the battery module 11 are arranged along the second direction. The flexible circuit board 13 has a mounting portion 131, and a temperature sensing element is located on the side of the mounting portion 131 facing the battery module 11 and connected to the mounting portion 131. The fixing structure 30 is fixedly connected to the mounting portion 131, and the fixing structure 30 is fixed to the mounting bracket 20. The mounting bracket 20 and the flexible circuit board 13 are located on the same side of the battery module 11. The mounting portion 131 is located on the side of the mounting bracket 20 away from the battery module 11. The mounting bracket 20 has two positioning posts 25, which are arranged along the third direction, and the two positioning posts 25 of the mounting bracket 20 are respectively inserted into the positioning holes of two adjacent module end plates 12 along the third direction. The mounting bracket 20 has a foolproof structure 24, which is a boss structure protruding along a first direction away from the battery module 11. The mounting bracket 20 forms an assembly space 23, and a low-voltage connector 132 is connected to the flexible circuit board 13, with at least a portion of the low-voltage connector 132 assembled within the assembly space 23. A fixing structure 30 is located on the side of the mounting portion 131 facing the mounting bracket 20, and the fixing structure 30 forms a first limiting hole, with at least a portion of the temperature sensing element located within the first limiting hole. The fixing structure 30 forms one of a fixing hole and a fixing post 21, and the mounting bracket 20 forms the other of a fixing hole and a fixing post 21, with the fixing post 21 assembled into the fixing hole to fix the fixing structure 30 to the mounting bracket 20. The battery device 100 also includes a heat-conducting structure 40, and the mounting bracket 20 has a second limiting hole 22. The second limiting hole 22 and the temperature detection element are opposite each other along a second direction. At least a portion of the heat-conducting structure 40 is disposed in the second limiting hole 22 and contacts the battery module 11, and the heat-conducting structure 40 also contacts the temperature detection element.

[0138] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0139] Other components of the battery device 100 according to the embodiments of this application, such as electrical components and explosion-proof valves, as well as its operation, are known to those skilled in the art and will not be described in detail here.

[0140] In the description of the application, reference has been made to descriptive terms such as "one embodiment", "some embodiments", "an embodiment", "example", "specific example" or "some examples" etc. It is emphasized that each of these terms refers to a specific feature, structure, material or characteristic described in connection with a particular embodiment or example. The descriptive terms are not necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0141] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since the scope of the application is defined with respect to the appended claims.

Claims

1. A battery device, characterized in that, include: A battery module includes a battery module, a module end plate, a flexible circuit board, and a temperature detection device. The battery module and the module end plate are arranged along a first direction, and the flexible circuit board and the battery module are arranged along a second direction. The flexible circuit board has a mounting portion. The temperature detection device is located on the side of the mounting portion facing the battery module and is connected to the mounting portion. The temperature detection device is used to detect the temperature of the battery module. The first direction and the second direction are perpendicular. The mounting bracket and the flexible circuit board are located on the same side of the battery module, and the mounting bracket is mounted on the module end plate. The mounting part is located on the side of the mounting bracket away from the battery module. A fixed structure is fixedly connected to the mounting part, and the fixed structure is fixed to the mounting bracket.

2. The battery device according to claim 1, characterized in that, The fixing structure is located on the side of the mounting part facing the mounting bracket, and the fixing structure has a first limiting hole, with at least a portion of the temperature sensing element located within the first limiting hole.

3. The battery device according to claim 1, characterized in that, The fixing structure has one of a fixing hole and a fixing post, and the mounting bracket has the other of the fixing hole and the fixing post. The fixing post is fitted into the fixing hole to fix the fixing structure to the mounting bracket.

4. The battery device according to claim 1, characterized in that, The battery device further includes a heat-conducting structure, the mounting bracket having a second limiting hole, the second limiting hole and the temperature sensing element being opposite each other along the second direction, at least a portion of the heat-conducting structure being disposed in the second limiting hole and in contact with the battery module, and the heat-conducting structure also being in contact with the temperature sensing element.

5. The battery device according to claim 4, characterized in that, The heat-conducting structure is in contact with the inner wall of the second limiting hole.

6. The battery device according to claim 1, characterized in that, The mounting bracket forms an assembly space, and the flexible circuit board is connected to a low-voltage connector, with at least a portion of the low-voltage connector assembled within the assembly space.

7. The battery device according to claim 1, characterized in that, The mounting bracket has a foolproof structure, which is located on the side of the mounting bracket opposite to the battery module along the first direction.

8. The battery device according to claim 7, characterized in that, The foolproof structure is a boss structure that protrudes along the first direction to the side opposite to the battery module.

9. The battery device according to any one of claims 1-8, characterized in that, The mounting bracket has a positioning post on the side facing the module end plate, and the module end plate has a positioning hole, into which the positioning post is inserted.

10. An electrical device, characterized in that, Includes the battery device according to any one of claims 1-9.

11. A mounting bracket for a battery device, characterized in that, The mounting bracket is used for mounting on the module end plate of the battery device, and the mounting bracket includes: The bracket body has a fixing part for fixing the flexible circuit board of the battery device, and the bracket body also has a second limiting hole for installing the heat-conducting structure of the battery device.

12. The mounting bracket for a battery device according to claim 11, characterized in that, The fixing part is a fixing column.

13. The mounting bracket for a battery device according to claim 11, characterized in that, The bracket body has an assembly space for assembling a low-voltage connector that is connected to the flexible circuit board.

14. The mounting bracket for a battery device according to claim 11, characterized in that, The mounting bracket further includes a foolproof structure, wherein the foolproof structure and the bracket body are arranged along a first direction and fixed to the bracket body.

15. The mounting bracket for a battery device according to any one of claims 11-14, characterized in that, Along the second direction, a positioning post is formed on one side of the bracket body, and the positioning post is used to be inserted into the positioning hole of the module end plate.

Images