Battery device and electric equipment

Abstract

The utility model discloses a battery device and electric equipment. The battery device comprises a box body (110); the battery monomer (120) is arranged in the box body (110); the maintenance switch (130) comprises a base (1) installed on a box body (110) and an electric connection component (2) detachably connected with the base (1), the base (1) comprises a base body (11) made of an insulating material and two conductive components installed on the base body (11), the two conductive components are electrically connected in the state that the electric connection component (2) is connected with the base (1), and the two conductive components are electrically connected in the state that the electric connection component (2) is separated from the base (1). The two conductive parts are electrically disconnected; the electrical connection part (2) comprises an electrical apparatus element (21) configured to connect the two conductive parts, an insulating cover (22) covering the electrical apparatus element (21), and a cover body (24) which is installed on the insulating cover (22) and is heat-conducting and shields electromagnetic radiation.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a battery device and an electrical appliance. Background Technology

[0002] A Manual Service Disconnect (MSD) is installed in the circuit connecting the battery to the electrical equipment. In some related technologies, an MSD includes a socket and a plug that is pluggable into the socket. The socket includes two isolated conductive parts, and the plug includes an electrical component. When the plug is inserted into the socket, the electrical component connects the two conductive parts, forming a current loop. When the plug is removed from the socket, the circuit between the two conductive parts is broken, thus disconnecting the circuit between the battery and the electrical equipment. The core function of a MSD is to directly disconnect the high-voltage circuit during equipment maintenance, providing necessary safety for operators. Utility Model Content

[0003] The present invention aims to provide a battery device and electrical equipment that ensures long-term reliability.

[0004] According to one aspect of the present invention, a battery device is provided, comprising: a housing; a battery cell disposed within the housing; and a maintenance switch including a base mounted on the housing and an electrical connection component detachably connected to the base. The base includes a base body made of insulating material and two conductive components mounted on the base body. When the electrical connection component is connected to the base, the two conductive components are electrically connected; when the electrical connection component is separated from the base, the two conductive components are disconnected. The electrical connection component includes an electrical element configured to connect the two conductive components, an insulating cover covering the electrical element, and a heat-conducting and electromagnetic radiation-shielding cover mounted on the insulating cover.

[0005] The heat generated by the electrical components can be conducted to the cover, which is located on the outermost side of the maintenance switch and dissipates heat with the outside air. This helps to reduce the temperature of the maintenance switch, improves the problem of accelerated aging of the maintenance switch due to high temperature in the existing technology, reduces the risk of abnormal electrical or sealing performance, helps to ensure long-term reliability, and also helps to ensure the long-term safety of the battery device.

[0006] Furthermore, the cover in this embodiment is configured to shield electromagnetic radiation. This helps reduce electromagnetic interference generated by the battery device during operation, ensuring the normal operation of the control and communication systems, thereby guaranteeing the safety of the electrical equipment.

[0007] In some embodiments, the cover material includes metal or graphene. Choosing metal as the cover material can effectively dissipate heat and shield electromagnetic radiation. Metal also has the advantage of being inexpensive.

[0008] In some embodiments, the cover is made of aluminum. Aluminum not only has good thermal conductivity and electromagnetic shielding properties, but also forms a dense oxide film on its surface quickly during application, ensuring its corrosion resistance.

[0009] In some embodiments, the service switch further includes a heat-conducting component disposed between the electrical component and the cover. Heat generated by the electrical component can be conducted to the cover via the heat-conducting component. The cover is located on the outermost side of the service switch and dissipates heat with the outside air, thereby helping to reduce the temperature of the service switch. This improves upon the problem of accelerated aging of service switches due to high temperatures in the prior art, reduces the risk of abnormal electrical or sealing performance, and helps ensure long-term reliability.

[0010] In some embodiments, a heat-conducting component is disposed between the electrical component and the insulating cover, with the cover attached to the outer surface of the insulating cover. The integral heat- and electrical-conducting cover, placed outside the insulating cover, simultaneously provides heat dissipation and electromagnetic radiation shielding. This addresses issues such as aging of maintenance switches due to high temperatures, abnormal electrical or sealing performance, and inability to guarantee long-term reliability. It also mitigates the problem of electromagnetic radiation interference with communication systems generated by battery devices, offering the advantages of simple solution and comprehensive functionality.

[0011] In some embodiments, the insulating cover includes an opening opposite the electrical component, a cover body is disposed over the opening, one side of the heat-conducting component abuts against the electrical component, and the other side abuts against the cover body. The heat generated by the electrical component is directly transferred to the cover body via the heat-conducting component, and the cover body dissipates the heat to the external environment. This method has advantages such as a short heat transfer path, good heat dissipation effect, simple structure, and large contact area.

[0012] In some embodiments, the thermally conductive component includes an insulating material layer stacked between the surface of the electrical component and the cover. The thermally conductive component simultaneously provides heat dissipation and insulation, shortening the heat transfer path while ensuring safety, thus improving heat dissipation efficiency.

[0013] In some embodiments, the thermally conductive component includes a thermally conductive adhesive layer or a thermally conductive material pad stacked between the surface of the electrical component and the cover, which has the advantages of simple structure, large contact area and good heat dissipation effect.

[0014] In some embodiments, the battery device further includes: a first electromagnetic shielding material layer coated on the outer surface of the assembly of the base and electrical connection components; and / or, a second electromagnetic shielding material layer coated on the surface of the housing. This helps to reduce electromagnetic interference generated by the battery device during operation, thereby ensuring the normal operation of the control and communication systems and thus guaranteeing the safety of the electrical equipment.

[0015] In some embodiments, the first electromagnetic shielding material layer includes a conductive material layer. A conductor with high electrical and magnetic conductivity serves as the shielding material. Under the influence of electromagnetic waves, the highly conductive material will generate a large induced current, which will weaken the penetration of the electromagnetic waves.

[0016] In some embodiments, a first electromagnetic shielding material layer is disposed at least on the outer surface of the assembly at a portion misaligned with the cover, and the first electromagnetic shielding material layer is connected to or overlaps with the cover in the direction of the outer contour line of the assembly. Since the cover itself has the property of reducing electromagnetic interference, applying an electromagnetic shielding material layer to other parts of the assembly can achieve the property of preventing electromagnetic interference, which is beneficial for solving material issues and reducing costs.

[0017] According to another aspect of this application, an electrical device is also provided, which includes the battery device described above.

[0018] By applying the technical solution of this utility model, the heat generated by the electrical components of the maintenance switch can be conducted to the cover. The cover is located on the outermost side of the maintenance switch and dissipates heat with the outside air, which helps to reduce the temperature of the maintenance switch. This improves the problem of accelerated aging of the maintenance switch due to high temperature in the prior art, reduces the risk of abnormal electrical performance or sealing performance, helps to ensure long-term reliability, and also helps to ensure the long-term safety of the battery device.

[0019] Furthermore, the cover in this embodiment is configured to shield electromagnetic radiation. This helps reduce electromagnetic interference generated by the battery device during operation, ensuring the normal operation of the control and communication systems, thereby guaranteeing the safety of the electrical equipment.

[0020] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

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

[0022] Figure 1 A schematic diagram of the structure of an electrical device disclosed in some embodiments of this utility model is shown.

[0023] Figure 2 An exploded structural diagram of a battery device disclosed in some embodiments of this utility model is shown.

[0024] Figure 3 A schematic diagram of the structure of a battery cell disclosed in some embodiments of this utility model is shown.

[0025] Figure 4 A three-dimensional structural schematic diagram of a maintenance switch disclosed in some embodiments of this utility model is shown.

[0026] Figure 5 The diagram shows an exploded view of a maintenance switch according to some embodiments of the present invention.

[0027] Figure 6 The diagram shows a top view of a maintenance switch disclosed in some embodiments of the present invention.

[0028] Figure 7 It shows Figure 6 A schematic diagram of the cross-sectional structure at point AA.

[0029] Figure 8 A structural schematic diagram of a maintenance switch disclosed in some other embodiments of this utility model is shown.

[0030] Figure 9 An exploded view of a maintenance switch disclosed in some other embodiments of this utility model is shown.

[0031] Figure 10 A top view of a maintenance switch disclosed in some other embodiments of this utility model is shown.

[0032] Figure 11 It shows Figure 10 Schematic diagram of the cross-sectional structure at point BB.

[0033] In the diagram: 1000, Vehicle; 100, Battery assembly; 110, Housing; 111, First part; 112, Second part; 120, Battery cell; 121, End cap; 121a, Electrode terminal; 122, Housing; 123, Cell assembly; 123a, Tab; 130, Maintenance switch; 200, Controller; 300, Motor; 1, Base; 11, Base body; 2, Electrical connection component; 21, Electrical component; 22, Insulating cover; 23, Heat-conducting component; 24, Cover; 25, Pin; 3, Bolt. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0035] 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 invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the invention, are intended to cover non-exclusive inclusion.

[0036] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0037] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable error range. "Parallel" is not parallel in the strict sense, but within the allowable error range.

[0038] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. It should also be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Unless otherwise specified, the terms "comprising" and "including" as used in this invention can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.

[0040] Unless otherwise specified, the term "or" is inclusive in this invention. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, the condition "A or B" is satisfied by any of the following conditions: A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0041] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0042] Figure 1 A schematic diagram of an electrical device that uses a battery as a power source is shown; for example... Figure 1 As shown, the electrical equipment in this embodiment includes a vehicle 1000, which can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery device 100 is installed inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0043] In some embodiments of this utility model, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0044] Please refer to Figure 2 , Figure 2 This is an exploded view of a battery device 100 provided in some embodiments of the present invention. The battery device 100 includes a housing 110 and a battery module disposed within the housing 110. The battery module includes a plurality of battery cells 120, which are housed within the housing 110. The housing 110 provides a receiving space for the battery cells 120, and the housing 110 can adopt various structures. In some embodiments, the housing 110 may include a first portion 111 and a second portion 112, which overlap each other, and together define a receiving space for accommodating the battery cells 120. The second part 112 can be a hollow structure with one end open, and the first part 111 can be a plate-like structure. The first part 111 covers the open side of the second part 112 so that the first part 111 and the second part 112 together define the accommodating space. Alternatively, the first part 111 and the second part 112 can both be hollow structures with one side open, and the open side of the first part 111 covers the open side of the second part 112. Of course, the box 110 formed by the first part 111 and the second part 112 can be of various shapes, such as a cylinder, a cuboid, etc.

[0045] In the battery device 100, there can be multiple battery cells 120. These multiple battery cells 120 can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 120 are connected in both series and parallel. Multiple battery cells 120 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of the multiple battery cells 120 is housed within the housing 110. Alternatively, the battery device 100 can also consist of multiple battery cells 120 first connected in series, parallel, or in a mixed configuration to form a battery module, and then multiple battery modules are connected in series, parallel, or in a mixed configuration to form a whole, which is also housed within the housing 110. The battery device 100 may also include other structures; for example, the battery device 100 may also include a busbar component for realizing the electrical connection between the multiple battery cells 120.

[0046] Each battery cell 120 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 120 can be cylindrical, flat, cuboid, or other shapes.

[0047] Please refer to Figure 3 , Figure 3This is an exploded structural diagram of a battery cell 120 provided in some embodiments of the present invention. The battery cell 120 refers to the smallest unit constituting the battery device 100. For example... Figure 3 The battery cell 120 includes an end cap 121, a housing 122, a cell assembly 123, and other functional components.

[0048] End cap 121 refers to a component that covers the opening of housing 122 to isolate the internal environment of battery cell 120 from the external environment. The shape of end cap 121 can be adapted to the shape of housing 122 to fit it. Optionally, end cap 121 can be made of a material with certain hardness and strength, such as aluminum alloy, so that end cap 121 is less prone to deformation under pressure and impact, giving battery cell 120 higher structural strength and improved safety performance. Functional components such as electrode terminals 121a can be provided on end cap 121. Electrode terminals 121a can be used for electrical connection with cell assembly 123 for outputting or inputting electrical energy from battery cell 120. In some embodiments, end cap 121 can also be provided with a pressure relief mechanism for releasing internal pressure when the internal pressure or temperature of battery cell 120 reaches a threshold. The end cap 121 can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this embodiment of the present invention does not impose any special limitations on this. In some embodiments, an insulating member can also be provided on the inner side of the end cap 121. The insulating member can be used to isolate the electrical connection components inside the housing 122 from the end cap 121 to reduce the risk of short circuit. For example, the insulating member can be plastic, rubber, etc.

[0049] The housing 122 is a component used to cooperate with the end cap 121 to form the internal environment of the battery cell 120, wherein the formed internal environment can accommodate the cell assembly 123, electrolyte, and other components. The housing 122 and the end cap 121 can be independent components. An opening can be provided on the housing 122, and the end cap 121 can be used to close the opening to form the internal environment of the battery cell 120. Alternatively, the end cap 121 and the housing 122 can be integrated. Specifically, the end cap 121 and the housing 122 can form a common connecting surface before other components are inserted into the housing. When it is necessary to encapsulate the interior of the housing 122, the end cap 121 closes the housing 122. The housing 122 can have various shapes and sizes, such as cuboid, cylindrical, hexagonal prism, etc. Specifically, the shape of the housing 122 can be determined according to the specific shape and size of the cell assembly 123. The shell 122 can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. This embodiment of the utility model does not impose any special restrictions on this.

[0050] The cell assembly 123 is the component in the battery cell 120 where the electrochemical reaction takes place. The housing 122 may contain one or more cell assemblies 123. The cell assembly 123 is mainly formed by winding or stacking electrode sheets, wherein the electrode sheets include positive electrode sheets and negative electrode sheets, and a separator is usually provided between the positive electrode sheets and the negative electrode sheets.

[0051] The electrode mainly consists of a thin sheet-like current collector and an active material coated on the current collector. The positive electrode, cathode electrode, and negative electrode, anode electrode, with the active material portion, constitute the main body of the battery cell assembly. The non-active material portions of the positive and negative electrodes each constitute a tab 123a. The positive and negative tabs can be located together at one end of the main body or at opposite ends of the main body. During the charging and discharging process of the battery device 100, the positive and negative active materials react with the electrolyte, and the tabs 123a connect to the electrode terminals to form a current loop.

[0052] To protect the safety of operators, the battery unit is equipped with a maintenance switch. The maintenance switch is located in the circuit connecting the battery unit and the electrical appliance (such as a motor). During the maintenance of the electrical equipment, the current output from the battery unit to the electrical appliance is cut off by disconnecting the maintenance switch to prevent accidental electric shock.

[0053] As the charging and / or discharging current of the battery device (providing current to the electrical appliance) continuously increases, the heat generated by the electrical components inside the maintenance switch also increases accordingly. Prolonged exposure to high temperatures accelerates the aging of the maintenance switch, and there is also a risk that the high temperature may cause deformation of the plastic structure, leading to abnormal electrical or sealing performance of the product, thus compromising long-term reliability. The aforementioned electrical components can be fuses, current protectors, or conductive connectors.

[0054] Furthermore, as the charging and / or discharging current of the battery device (which provides current to electrical appliances) continues to increase, the electromagnetic radiation generated by the battery device also increases accordingly. Currently, the plastic structure of the maintenance switch casing cannot effectively shield against electromagnetic interference generated by the high-voltage current of the battery device, posing a risk of abnormal battery or vehicle communication due to electromagnetic interference.

[0055] To address the aforementioned issues, this embodiment provides a battery-equipped device, see [link to previous document]. Figures 4 to 7 As shown, the battery device in this embodiment includes a housing 110, a battery cell 120 disposed inside the housing 110, and a maintenance switch mounted on the housing 110.

[0056] The maintenance switch 130 includes a base 1 mounted on a housing 110 and an electrical connection component 2 detachably connected to the base 1.

[0057] The base 1 includes a base body 11 made of insulating material and two conductive components mounted on the base body 11. When the electrical connection component 2 is connected to the base 1, the two conductive components are electrically connected. When the electrical connection component 2 is separated from the base 1, the two conductive components are disconnected.

[0058] The electrical connection component 2 includes an electrical element 21 configured to connect two conductive components, an insulating cover 22 covering the electrical element 21, and a heat-conducting and electromagnetic radiation-shielding cover 24 mounted on the insulating cover 22.

[0059] In the technical solution of this embodiment, the heat generated by the electrical component 21 can be conducted to the cover 24. The cover 24 is located on the outermost side of the maintenance switch and dissipates heat with the outside air, which helps to reduce the temperature of the maintenance switch, improves the problem of accelerated aging of the maintenance switch due to high temperature in the prior art, reduces the risk of abnormal electrical performance or sealing performance, and helps to ensure long-term reliability.

[0060] Furthermore, the cover 24 in this embodiment is configured to shield electromagnetic radiation. This helps reduce electromagnetic interference generated by the battery device during operation, ensuring the normal operation of the control and communication systems, thereby guaranteeing the safety of the electrical equipment.

[0061] In some embodiments, the material of the cover 24 includes metal or graphene.

[0062] Metallic materials (such as aluminum) generally possess both good electrical and thermal conductivity. Choosing conductors with high electrical and magnetic conductivity as shielding materials allows them to generate significant induced currents under electromagnetic waves, which weaken the penetration of these waves. Therefore, using metallic materials as covers provides excellent heat dissipation and electromagnetic radiation shielding. Furthermore, metallic materials are inexpensive.

[0063] Graphene possesses excellent thermal conductivity and electromagnetic shielding properties, and it achieves its shielding function by absorbing, scattering, and reflecting electromagnetic waves. Of course, the material of the cover 24 can also include composite materials with thermal conductivity and electromagnetic shielding properties.

[0064] The cover 24 has both heat dissipation and electromagnetic radiation shielding functions. It improves the problems of aging, abnormal electrical or sealing performance, and inability to guarantee long-term reliability caused by high temperature in the maintenance switch. It also improves the problem of electromagnetic radiation interference to the communication system generated by the battery device. It has the advantages of simple solution and complete functions.

[0065] In some embodiments, the maintenance switch 130 further includes a heat-conducting component 23 disposed between the electrical component 21 and the cover 24. The heat generated by the electrical component 21 can be conducted to the cover 24 via the heat-conducting component 23. The cover 24 is located on the outermost side of the maintenance switch and dissipates heat with the outside air, thereby helping to reduce the temperature of the maintenance switch. This improves the problem of accelerated aging of maintenance switches due to high temperatures in the prior art, reduces the risk of abnormal electrical or sealing performance, and helps to ensure long-term reliability.

[0066] The insulating cover 22 is made of plastic to provide insulation and ensure safety. An integral, heat-conducting and electromagnetically shielding cover 24, made of thermally and electrically conductive material, is placed over the insulating cover 22. This cover provides both heat dissipation and electromagnetic radiation shielding, improving the problems of aging, abnormal electrical or sealing performance, and inability to guarantee long-term reliability caused by high temperatures in the maintenance switch. It also mitigates the problem of electromagnetic radiation interference with the communication system generated by the battery device, offering the advantages of simple solution and comprehensive functionality.

[0067] In some embodiments, the heat-conducting component 23 includes a heat-conducting adhesive layer or a heat-conducting material pad stacked between the surface of the electrical component 21 and the cover 24. That is, the heat-conducting component 23 can be formed by applying heat-conducting adhesive between the electrical component 21 and the insulating cover 22, or by placing a heat-conducting material pad between the electrical component 21 and the insulating cover 22. The heat generated by the electrical component 21 is transferred to the insulating cover 22 via the heat-conducting component, and the heat on the insulating cover 22 is dissipated to the external environment by the cover 24. This method has the advantages of simple structure, large contact area, and good heat dissipation effect.

[0068] In some embodiments, a first electromagnetic shielding material layer is coated on the outer surface of the assembly of the base 1 and the electrical connection component 2 to shield electromagnetic radiation. This helps to reduce electromagnetic interference generated by the battery device during operation, thereby ensuring the normal operation of the control and communication systems and thus guaranteeing the safety of the electrical equipment.

[0069] In some embodiments, the first electromagnetic shielding material layer includes a conductive material layer. A conductor with high electrical and magnetic conductivity serves as the shielding material. Under the influence of electromagnetic waves, the highly conductive material will generate a large induced current, which will weaken the penetration of the electromagnetic waves.

[0070] In some embodiments, a first electromagnetic shielding material layer is disposed at least on the outer surface of the assembly at a portion offset from the cover 24, and the first electromagnetic shielding material layer is connected to or overlaps with the cover 24 in the direction of the outer contour line of the assembly. The cover 24 itself has the property of reducing electromagnetic interference, so applying an electromagnetic shielding material layer to other parts of the assembly can achieve the property of preventing electromagnetic interference, which is beneficial for solving material problems and reducing costs.

[0071] In some embodiments, the battery device further includes a second electromagnetic shielding material layer coated on the surface of the housing 110 to shield electromagnetic radiation. This helps reduce electromagnetic interference generated by the battery device during operation, ensuring the normal operation of the control and communication systems, thereby guaranteeing the safety of the electrical equipment.

[0072] Combination Figure 1 In application, the electrical connection components are first matched with the integrated panel base 1. Then, the shielding heat dissipation material cover 24 is fastened to the insulating cover 22 (currently a conformal design). The electrical connection components are fixed by bolts 3. Then, conductive adhesive or conductive paint is evenly sprayed on the outer surface of the electrical connection components 2 and the base 1. Finally, the heat dissipation material cover is connected to the battery device housing by a metal conductor to complete heat conduction and shielding.

[0073] The insulating cover is attached to the inner side of the cavity to form the aforementioned heat-conducting component 23. One side of the heat-conducting adhesive / pad contacts the insulating cover, and the other side contacts the electrical component 21 (e.g., a fuse). When the maintenance switch actually carries a large current, the heat generated is conducted to the insulating cover 22. The insulating cover 22 conducts the heat to the heat dissipation material cover and then dissipates the heat, thereby reducing the temperature. The outer conductive parts and the internal electrical components are isolated by plastic to ensure their mutual insulation performance while achieving shielding. In this solution, aluminum plate (other metal materials are also acceptable) is recommended for the heat dissipation material cover. It has good thermal conductivity and a dense oxide film will quickly form on its surface during application to ensure its corrosion resistance.

[0074] In some embodiments, the insulating cover 22 and the cover body 24 are filled with thermally conductive adhesive to ensure better heat dissipation through contact area.

[0075] The electrical connection component 2 also includes a pin 25 that is electrically connected to the electrical component 21, and the pin 25 is inserted into the base 1. After the pin 25 is inserted into the base, the pin 25 is connected to the conductive part of the base, thereby electrically connecting the two conductive parts.

[0076] In summary, this application provides a novel heat-dissipating shielded MSD structure, with a separately provided heat-dissipating shielded cover 24, and a heat-conducting component 23 formed by filling the space between the electrical component 21 (fuse) and the insulating cover 22 (MSD handle plastic shell) of the electrical connection component 2 with a thermally conductive pad or thermally conductive adhesive. When the battery device is in operation, the fuse in the electrical connection component 2 generates a large amount of heat due to its own structural characteristics. At this time, the heat-conducting component 23 can transfer the heat from the fuse to the insulating cover 22, which is then in contact with the outer cover 24 (it is recommended to fill the space between them with thermally conductive adhesive to increase the contact panel and ensure heat transfer efficiency), thereby transferring the heat to the cover 24.

[0077] The cover 24 is made of metal, which can be a metal plate or a metal outer cover (heat dissipation material cover). Thanks to the high thermal conductivity of metal itself, most of the heat can be dissipated into the air through the cover 24 via the large metal surface, reducing overall heat generation and ensuring the long-term reliability of the MSD.

[0078] The aforementioned constitutes the first key function (heat dissipation to ensure long-term structural reliability under high current conditions, providing current-carrying capacity for the current solution, and reducing operating costs). In the second part, the cover 24 in this solution is made of metal. After the cover 24 is installed, the surface of the assembly of the electrical connection component 2 and the base 1 is evenly coated with conductive paint or a thin layer of conductive adhesive. The conductive adhesive or paint covers the outer surface of the assembly, with the large surface in contact with this metal exterior. Shielding is then achieved by connecting it to the enclosure via bolt terminals or embedded conductive parts. Compared to current technical solutions, this solution is applicable to all applications, including MSD handle structures without fuses. Furthermore, this solution considers the performance of the shielding components, achieving overall shielding by using a large metal heat-dissipating cover in conjunction with conductive adhesive or conductive paint while meeting insulation requirements.

[0079] See Figures 8 to 11 In some embodiments, the insulating cover 22 includes an opening opposite to the electrical component 21, and a cover body 24 is placed over the opening. One side of the heat-conducting component 23 abuts against the electrical component 21, and the other side abuts against the cover body 24. The heat generated by the electrical component 21 is directly transferred to the cover body 24 via the heat-conducting component 23, and the cover body 24 dissipates the heat to the external environment. This method has advantages such as a short heat transfer path, good heat dissipation effect, simple structure, and large contact area.

[0080] In some embodiments, the heat-conducting component 23 includes an insulating material layer stacked between the surface of the electrical component 21 and the cover 24. The heat-conducting component 23 serves both heat dissipation and insulation purposes, shortening the heat transfer path while ensuring safety, thus improving heat dissipation efficiency.

[0081] The above are merely exemplary embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A battery device, characterized in that, include: Box (110); A battery cell (120) is disposed in the housing (110); The maintenance switch (130) includes a base (1) mounted on the housing (110) and an electrical connection component (2) detachably connected to the base (1). The base (1) includes a base body (11) made of insulating material and two conductive components installed on the base body (11). When the electrical connection component (2) is connected to the base (1), the two conductive components are electrically connected. When the electrical connection component (2) is separated from the base (1), the two conductive components are disconnected. The electrical connection component (2) includes an electrical element (21) configured to connect two of the conductive components, an insulating cover (22) covering the electrical element (21), and a heat-conducting and electromagnetic radiation-shielding cover (24) mounted on the insulating cover (22).

2. The battery device according to claim 1, characterized in that, The material of the cover (24) includes metal or graphene.

3. The battery device according to claim 1, characterized in that, The cover (24) is made of aluminum.

4. The battery device according to claim 1, characterized in that, The maintenance switch (130) also includes a heat-conducting component (23) disposed between the electrical component (21) and the cover (24).

5. The battery device according to claim 4, characterized in that, The heat-conducting component (23) is disposed between the electrical component (21) and the insulating cover (22), and the cover body (24) is attached to the outer surface of the insulating cover (22).

6. The battery device according to claim 4, characterized in that, The insulating cover (22) includes an opening opposite the electrical component (21), the cover body (24) is placed over the opening, one side of the heat-conducting component (23) abuts against the electrical component (21), and the other side abuts against the cover body (24).

7. The battery device according to claim 6, characterized in that, The heat-conducting component (23) includes an insulating material layer stacked between the surface of the electrical component (21) and the cover (24).

8. The battery device according to claim 4, characterized in that, The thermally conductive component (23) includes a thermally conductive adhesive layer or thermally conductive material pad stacked between the surface of the electrical component (21) and the cover (24).

9. The battery device according to claim 1, characterized in that, Also includes: The outer surface of the assembly of the base (1) and the electrical connection component (2) is coated with a first electromagnetic shielding material layer that shields electromagnetic radiation. and / or The surface of the enclosure (110) is coated with a second electromagnetic shielding material layer that shields electromagnetic radiation.

10. The battery device according to claim 9, characterized in that, The first electromagnetic shielding material layer includes a conductive material layer.

11. The battery device according to claim 9, characterized in that, The first electromagnetic shielding material layer is provided at least on the portion of the outer surface of the assembly that is misaligned with the cover (24), and the first electromagnetic shielding material layer is connected to or overlaps with the cover (24) in the direction of the outer contour line of the assembly.

12. An electrical appliance, characterized in that, The battery device includes any one of claims 1 to 11.

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