Battery device and electric device

Abstract

The battery device comprises a high-voltage box, the high-voltage box comprises a confluence component, an insulation connecting piece and a fixing piece, the confluence component is arranged on one side of the fixing piece, one end of the insulation connecting piece is connected with the confluence component, and the other end of the insulation connecting piece is fixedly connected with the fixing piece in the direction away from the confluence component. The insulating connecting piece comprises a shell, a connecting part and a heat conduction part, a first groove is formed in the end face, facing the confluence component, of the shell, the connecting part is connected with the side wall of the first groove, and the connecting part is used for being connected with the confluence component. The heat conducting part is arranged between the connecting part and the shell for heat transfer between the connecting part and the shell. Therefore, the reliability of the battery device can be improved.

Description

Technical Field

[0001] This application relates to the field of batteries, and more specifically, to a battery device and an electrical device. Background Technology

[0002] Battery packs typically include a high-voltage box, which distributes the high-voltage DC power to the battery pack and monitors its voltage and current. However, due to the small size of the high-voltage box, it is difficult to install large heat dissipation components inside, causing heat to accumulate and affecting its performance, thereby reducing the reliability of the battery pack.

[0003] Therefore, improving the reliability of battery devices has become an urgent problem to be solved. Utility Model Content

[0004] This application provides a battery device and an electrical device that can improve the performance of the battery device.

[0005] In a first aspect, a battery device is provided, comprising a high-voltage box, the high-voltage box including a current-combining component, an insulating connector, and a fixing component. The current-combining component is disposed on one side of the fixing component. One end of the insulating connector is connected to the current-combining component, and the other end is fixedly connected to the fixing component in a direction away from the current-combining component. The insulating connector includes a housing, a connecting portion, and a heat-conducting portion. A first groove is provided on the end face of the housing facing the current-combining component. The connecting portion is connected to the side wall of the first groove and is used to connect the current-combining component. The heat-conducting portion is disposed between the connecting portion and the housing for heat transfer between the connecting portion and the housing.

[0006] In the technical solution provided in this application embodiment, the insulating connector provides a heat dissipation path for the busbar component through a heat-conducting part accommodated in the first groove of the housing. Since no additional heat-conducting part needs to be attached outside the insulating connector, it occupies less space, which meets the energy density requirements of the battery device and can improve the energy density of the battery device. When the busbar component generates a lot of heat, the heat can be transferred to the insulating connector through the heat-conducting part, and then transferred to the fixing part through the insulating connector. This can alleviate the heat generation problem of the busbar component and improve the reliability of the battery device.

[0007] In some embodiments, a first groove is also provided on the end face of the housing facing the fixing member, and a connecting part is provided in the first groove. The connecting parts at both ends of the insulating connector are respectively connected to the busbar component and the fixing member.

[0008] In the technical solution provided in this application embodiment, by providing a first groove on both end faces of the housing to accommodate the connecting part, the connecting part connects the busbar component and the fixing part, thereby enabling the insulating connecting part to have higher heat transfer efficiency, thereby increasing the heat dissipation efficiency of the busbar component, and thus improving the reliability of the battery device.

[0009] In some embodiments, the substrate of the housing includes an insulating and thermally conductive material, and the thermally conductive portion includes a thermally conductive limiting portion disposed on the surface of the connecting portion facing the sidewall of the first groove, and the connecting portion is connected to the sidewall of the first groove through the thermally conductive limiting portion.

[0010] In the technical solution provided in this application embodiment, the connecting part is connected to the side wall of the first groove through the heat-conducting limiting part. The heat-conducting limiting part can not only play the role of heat transfer, but also play the role of fixing the connecting part. In addition, since it needs to play a limiting role, the heat-conducting limiting part and the side wall of the first groove are closely fitted, thereby further improving the heat dissipation efficiency of the insulating connector and thus improving the reliability of the battery device.

[0011] In some embodiments, the heat-conducting limiting portion includes: a plurality of first protrusion structures, the plurality of first protrusion structures surrounding the surface of the connecting portion facing the sidewall of the first groove, and the surfaces of the plurality of first protrusion structures away from the connecting portion being provided with threads; wherein, at least two of the first protrusion structures have threads with opposite directions of rotation.

[0012] In the technical solution provided in this application embodiment, the connecting part directly bears the torque generated by rotation. The outer side of the connecting part is provided with threads of opposite direction. The sidewall of the first groove is connected to the connecting part by threads of opposite direction, so that the structure of the shell can bear less stress, which is beneficial to maintaining the structure of the insulating connector.

[0013] In some embodiments, the connection includes: a connecting seat, a heat-conducting limiting portion disposed on the surface of the connecting seat facing the side wall of the first groove, and a second groove disposed on the end face of the connecting seat away from the bottom wall of the first groove; and an insert, which is embedded in the second groove and connects to a busbar or a fixing member.

[0014] In the technical solution provided in this application embodiment, the connecting part is configured as an insert and a connecting seat. The connecting seat cooperates with the insert to bear the torque. Even when the connecting part is subjected to a large torque, the insert and the connecting seat will bear the torque first, so that the structure of the shell can bear a small stress, which is beneficial to maintaining the structure of the insulating connector.

[0015] In some embodiments, the portion between the housing and the connection is filled with a thermally conductive medium.

[0016] In the technical solution provided in this application embodiment, a thermally conductive medium is filled between the housing and the connecting part. On the one hand, the thermally conductive medium can effectively conduct the heat of the busbar component, thereby assisting the busbar component in heat dissipation. On the other hand, the filled thermally conductive medium increases the heat transfer contact area between the connecting part and the housing, thereby further increasing the heat dissipation, and thus improving the reliability of the battery device.

[0017] In some embodiments, the connecting portion includes: a cavity filled with a heat-conducting medium; and a heat-conducting port disposed on the bottom wall of the connecting portion facing the first groove, the heat-conducting port communicating with the cavity.

[0018] In the technical solution provided in this application embodiment, a heat-conducting medium is filled between the shell and the connecting part, and a heat-conducting port is provided on the bottom wall of the connecting part facing the first groove. The heat-conducting port communicates with the cavity, which is also filled with a heat-conducting medium. When the connecting part is assembled to the insulating connector, the heat-conducting medium can contact the heat-conducting medium in the cavity through the heat-conducting port, thereby forming a heat conduction path to better transfer heat. This design can increase the contact area between the heat-conducting medium and the connecting part, allowing the connecting part to better transfer the heat received from the busbar, thereby improving the heat dissipation efficiency of the insulating connector.

[0019] In some embodiments, a heat-conducting cavity is provided on the bottom wall of the first groove, and the heat-conducting cavity is filled with a heat-conducting medium.

[0020] In some embodiments, the insulating connector further includes a height adjustment component received in a first groove, the height adjustment component being used to adjust the height of the insulating connector via a connecting portion.

[0021] In the technical solution provided by this application embodiment, on the one hand, by providing a height adjustment component in the first groove, when the interfaces of the insulating connection high-voltage boxes have different height differences, the height of the insulating connector can be adjusted to meet the connection requirements of different height differences, eliminating the need to produce multiple models of insulating connectors for the high-voltage boxes. Furthermore, because the height is adjustable, the insulating connector is compatible with multiple models of high-voltage boxes. The processing of the insulating connector and the high-voltage box is simpler, thereby saving manufacturing costs for the battery device. On the other hand, the heat-conducting part can improve the problem of reduced heat dissipation efficiency caused by the expansion and contraction of the connection part, thereby improving the reliability of the battery device.

[0022] In some embodiments, the height adjustment assembly includes: a first height adjustment portion disposed on the side of the connector facing the first groove sidewall; and a second height adjustment portion disposed on the side of the first groove sidewall facing the connector; the first height adjustment portion and the second height adjustment portion cooperate to adjust the height of the insulating connector.

[0023] The technical solution provided in this application embodiment includes a first height adjustment part on the outer wall of the connecting portion and a second height adjustment part on the inner wall of the first groove. The height of the insulating connector is adjusted through their cooperation, enabling the insulating connector to adapt to connections at interfaces with different height differences. Furthermore, since the first and second height adjustment parts are respectively located on the outer wall of the connecting portion and the inner wall of the first groove, the volume of the insulating connector is not increased, saving additional space occupied by the height adjustment component. This reduces the volume occupied by the insulating connector, which is suitable for the limited space of battery devices and thus improves the energy density of the battery device.

[0024] In some embodiments, the first groove is a cylindrical groove, and the second height adjustment part includes a spiral groove, wherein the first height adjustment part is at least partially accommodated within the spiral groove.

[0025] In the technical solution provided in this application embodiment, the second height adjustment part includes a spiral groove, and the first height adjustment part is at least partially accommodated within the spiral groove, thereby enabling the height of the insulating connector to be adjusted through the relative rotational movement between the connector and the housing. Since the height of the insulating connector can be adjusted by rotation, the adjustment is relatively simple and does not easily damage the insulating connector, thereby improving the stability of the insulating connector and thus improving the stability of the battery device.

[0026] In some embodiments, the first height adjustment portion includes a first protrusion that protrudes toward the sidewall of the first groove.

[0027] In the technical solution provided in this application embodiment, the first height adjustment part includes a first protrusion disposed on the outer wall of the connecting part, and the first protrusion is at least partially accommodated in the spiral groove. When the connecting part rotates relative to the housing, the spiral groove pushes the first protrusion, so that the connecting part can move along the height direction, thereby easily realizing the adjustment of the height of the insulating connector.

[0028] In some embodiments, the first height adjustment part includes: threaded teeth that are adapted to a helical groove.

[0029] In the technical solution provided in this application embodiment, the first height adjustment part includes threaded teeth. The threaded teeth cooperate with the spiral groove. On the one hand, the cooperation between the threaded teeth and the spiral groove is more secure, and the connection part is less likely to slip along the height direction. On the other hand, the contact area between the threaded teeth and the spiral groove is large, and heat can be efficiently transferred from the busbar component to the insulating connector, and further efficiently transferred to the fixing component, thereby alleviating the problem of overheating of the busbar component and improving the reliability of the battery device.

[0030] In some embodiments, a third groove is provided on the side of the connecting portion at one end away from the bottom wall of the first groove, and the side wall of the third groove is provided with an internal thread; the connecting portion at the other end is provided with a second protrusion, the second protrusion protrudes in a direction away from the bottom wall of the first groove, and the outer wall of the second protrusion is provided with an external thread; wherein the internal thread and the external thread are adapted to each other.

[0031] In the technical solution provided in this application embodiment, the connecting parts at both ends of the insulating connector are respectively provided with a third groove with internal threads and a second protrusion with external threads, so that the insulating connectors can be connected to each other, thereby assembling insulating connectors of different heights, and thus adapting to the support and transfer of the busbar component under different height differences.

[0032] In some embodiments, the portion of the housing located between the two first grooves is provided with a plurality of third protrusions, the plurality of third protrusions protruding radially toward the housing, and the side of the plurality of third protrusions radially away from the housing is a plane.

[0033] In a second aspect, an electrical device is provided, comprising: a battery device as described in any of the first aspects, wherein the battery device is used to provide electrical energy.

[0034] In some embodiments, the electrical device is a vehicle, a ship, or a spacecraft. Attached Figure Description

[0035] Figure 1 A schematic diagram of the structure of a vehicle according to one embodiment of this application is shown;

[0036] Figure 2 A partial structural schematic diagram of the battery device according to an embodiment of this application is shown;

[0037] Figure 3 A top view schematic diagram of a battery device provided in one embodiment of this application is shown;

[0038] Figure 4 A perspective view of a high-voltage box according to a certain embodiment of this application is shown;

[0039] Figure 5 A perspective view of an insulating connector provided in a certain embodiment of this application is shown;

[0040] Figure 6 An exploded view of an insulating connector provided in one embodiment of this application is shown;

[0041] Figure 7 A partial cross-sectional schematic diagram of an insulating connector provided in a certain embodiment of this application is shown;

[0042] Figure 8A partial cross-sectional schematic diagram of an insulating connector provided in another embodiment of this application is shown;

[0043] Figure 9 A partial cross-sectional schematic diagram of an insulating connector provided in yet another embodiment of this application is shown;

[0044] Figure 10 An assembly diagram of an insulating connector according to yet another embodiment of this application is shown;

[0045] Figure 11 This illustrates another possible partial cross-sectional schematic diagram of an insulating connector provided in yet another embodiment of this application;

[0046] Figure 12 This illustration shows yet another possible partial cross-sectional view of an insulating connector provided in another embodiment of this application;

[0047] Figure 13 An exploded perspective view of an insulating connector provided in another embodiment of this application is shown;

[0048] Figure 14 A partial cross-sectional schematic diagram of an insulating connector according to another embodiment of this application is shown;

[0049] Figure 15 A perspective view of an insulating connector provided in another embodiment of this application is shown;

[0050] Figure 16 A perspective view of the extended state of the insulating connector provided in another embodiment of this application is shown;

[0051] Figure 17 This application shows Figure 15 A partial cross-sectional schematic diagram of the provided insulating connector;

[0052] Figure 18 Other possible perspective views of the insulating connector provided in another embodiment of this application are shown;

[0053] Figure 19 This application also shows other possible perspective views of the elongated state of the insulating connector provided in another embodiment;

[0054] Figure 20 This application shows Figure 18 A cross-sectional schematic diagram of the provided insulating connector;

[0055] Figure 21 A perspective view of an insulating connector provided in another embodiment of this application is shown, with both ends in an elongated state.

[0056] Figure 22 This application shows Figure 18Other possible cross-sectional schematic diagrams of the provided insulating connector.

[0057] Figure label:

[0058] 1-Vehicle; 10-Battery unit; 11-Box; 20-Battery cell; 30-Controller; 40-Motor; 101-High voltage box; 111-First box section; 112-Second box section; 200-Insulating connector; 1011-Busting component; 1012-Fixing component; 210-Housing; 211-First groove; 220-Connecting part; 230-Height adjustment assembly; 231-First height adjustment part; 232-Second height adjustment part; 260-Heat conducting part; 261-Heat conducting limiting part; 2311- First protrusion; 2321-spiral groove; 2121-first sub-wall; 2122-second sub-wall; 233-first limiting groove; 234-second limiting groove; 221-connecting seat; 222-insert; 2211-second groove; 2123-reinforcing wall; 2312-thread tooth; 2124-first protruding structure; 225-second protrusion; 223-third groove; 224-internal thread; 226-external thread; 2101-heat conducting cavity; 228-cavity; 229-heat conducting port; 213-third protrusion;

[0059] The accompanying drawings are not drawn to scale. Detailed Implementation

[0060] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0061] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0062] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0063] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0066] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0067] In this application, "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

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

[0069] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0070] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0071] The battery device mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connections via a busbar.

[0072] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cell assemblies housed within the housing.

[0073] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0074] In some embodiments, the housing may be part of the vehicle's chassis structure. For example, a portion of the housing may be at least a part of the vehicle's floor, or a portion of the housing may be at least a part of the vehicle's crossbeams and longitudinal beams.

[0075] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use individual battery cells, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft.

[0076] 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.

[0077] Battery packs typically include a high-voltage box, which distributes the high-voltage DC power to the battery pack and monitors its voltage and current. However, due to the small size of the high-voltage box, it is difficult to install large heat dissipation components inside, causing heat to accumulate and affecting its performance, thereby reducing the reliability of the battery pack.

[0078] Therefore, improving the reliability of battery devices has become an urgent problem to be solved.

[0079] This application provides a battery device including a high-voltage box. The high-voltage box includes a current-combining component, an insulating connector, and a fixing component. The current-combining component is disposed on one side of the fixing component. One end of the insulating connector is connected to the current-combining component, and the other end is fixedly connected to the fixing component in a direction away from the current-combining component. The insulating connector includes a housing, a connecting portion, and a heat-conducting portion. The housing has a first groove on its end face facing the current-combining component, and the connecting portion is connected to the sidewall of the first groove. The connecting portion is used to connect the current-combining component. The heat-conducting portion is disposed between the connecting portion and the housing to facilitate heat transfer between the connecting portion and the housing.

[0080] In the technical solution provided in this application embodiment, the insulating connector provides a heat dissipation path for the busbar component through a heat-conducting part accommodated in the first groove of the housing. Since no additional heat-conducting part needs to be attached outside the insulating connector, it occupies less space, which meets the energy density requirements of the battery device and can improve the energy density of the battery device. When the busbar component generates a lot of heat, the heat can be transferred to the insulating connector through the heat-conducting part, and then transferred to the fixing part through the insulating connector. This can alleviate the heat generation problem of the busbar component and improve the reliability of the battery device.

[0081] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use battery devices.

[0082] Electrical devices can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. This application does not impose any special limitations on the above-mentioned electrical devices.

[0083] For ease of explanation, the following embodiments will use a vehicle as an example of an electrical device.

[0084] For example, Figure 1A schematic diagram of a vehicle 1 according to one embodiment of this application is shown. Vehicle 1 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A motor 40, a controller 30, and a battery device 10 can be installed inside vehicle 1. The controller 30 controls the battery device 10 to supply power to the motor 40. For example, the battery device 10 can be installed at the bottom, front, or rear of vehicle 1. The battery device 10 can be used to power vehicle 1. For example, the battery device 10 can serve as the operating power source for vehicle 1, for example, for the electrical system of vehicle 1, such as for the power requirements of vehicle 1's starting, navigation, and operation. In another embodiment of this application, the battery device 10 can not only serve as the operating power source for vehicle 1, but also as the driving power source for vehicle 1, replacing or partially replacing gasoline or natural gas to provide driving power for vehicle 1.

[0085] For example, Figure 2 A partial structural schematic diagram of the battery device 10 according to an embodiment of this application is shown. Figure 2 As shown, the battery device 10 of this application embodiment may include a plurality of battery cells 20 to meet different power usage requirements. The shape of the battery cell 20 in this application embodiment can be set according to actual application. For example, the battery cell 20 can be as follows: Figure 2 The cylindrical shape shown, or it could be different. Figure 2 The embodiments shown may be cuboids or other shapes, but are not limited to these.

[0086] It should be understood that, such as Figure 2 As shown, the battery device 10 of this embodiment may further include a housing 11, which can be used to accommodate multiple battery cells 20. The housing 11 of this embodiment has a hollow interior, and the multiple battery cells 20 are accommodated within the housing 11. The housing 11 may include two parts, referred to herein as a first housing portion 111 and a second housing portion 112, which are fastened together. The shapes of the first housing portion 111 and the second housing portion 112 can be determined according to the shape of the components housed inside, for example, according to the shape of the combination of the multiple battery cells 20 housed inside. At least one of the first housing portion 111 and the second housing portion 112 has an opening. For example, as... Figure 2As shown, the first housing portion 111 and the second housing portion 112 can both be hollow cuboids with one open side each. The openings of the first housing portion 111 and the second housing portion 112 are opposite to each other, and the first housing portion 111 and the second housing portion 112 are interlocked to form a housing 11 with a closed chamber, which can be used to accommodate multiple battery cells 20. The multiple battery cells 20 are connected in parallel, series, or mixed and placed inside the housing 11 formed by the interlocking of the first housing portion 111 and the second housing portion 112.

[0087] For example, unlike Figure 2 As shown, either the first housing portion 111 or the second housing portion 112 may have only one hollow cuboid with an opening, while the other is plate-shaped to cover the opening. Taking the second housing portion 112 as a hollow cuboid with one opening and the first housing portion 111 as a plate-shaped example, then the first housing portion 111 covers the opening of the second housing portion 112 to form a housing 11 with a closed chamber, which can be used to accommodate multiple battery cells 20.

[0088] Combination Figure 3 and Figure 4 This application describes a high-voltage box 101 provided in an embodiment.

[0089] Figure 3 A top view schematic diagram of a battery device 10 provided in a certain embodiment of this application is shown; Figure 4 A perspective view of a high-voltage box 101 according to a certain embodiment of this application is shown.

[0090] As shown in the figure, the battery device 10 may include a high-voltage box 101. The battery device 10 is electrically connected to the power system of the power-consuming device through the high-voltage box 101, and the high-voltage box 101 distributes the output power of the battery device 10 at high voltage.

[0091] This application embodiment exemplarily shows that the high voltage box 101 is disposed inside the housing 11 of the battery device 10, but this application embodiment is not limited to this. The high voltage box 101 can also be disposed outside the housing 11 of the battery device 10, and the high voltage box 101 can have an independent encapsulation structure, such as a cover.

[0092] The high-voltage box 101 may include a relay. During the charging and discharging process of the battery device 10, by controlling the closing and opening of the relay, the connection and disconnection between the battery device 10 and the external electrical device can be realized, thereby realizing overcurrent, overvoltage and undervoltage protection.

[0093] In order to improve the energy density of the battery device 10, the high voltage box 101 occupies a small volume, and the internal components of the high voltage box 101 also typically occupy as little volume as possible.

[0094] The high voltage box 101 contains a current collector 1011. The high voltage box 101 can distribute the electrical energy of the battery device 10 at high voltage. The current collector 1011 connects the electrode terminals of the battery cell 20 and the output terminal of the battery device 10. However, the current collector 1011 sometimes needs to connect interfaces of different heights, which may require the use of insulating connectors 200 of different heights to support the current collector 1011.

[0095] As an example, the busbar component 1011 may be a copper busbar, but the embodiments of this application are not limited thereto.

[0096] The insulating connector 200 can provide an insulated connection between the busbar 1011 and the mounting member 1012. For example, the mounting member 1012 may be the base plate of the high-voltage box 101 or other components used to secure the busbar 1011. The insulating connector 200 insulates the connection between the busbar 1011 and the mounting member 1012 while providing support for the busbar 1011, thereby improving the reliability of the electrical connection or transfer of the busbar 1011.

[0097] The following is combined Figures 5 to 7 This application describes the insulating connector 200 provided in certain embodiments.

[0098] Figure 5 A perspective view of an insulating connector 200 provided in a certain embodiment of this application is shown; Figure 6 An exploded view of an insulating connector 200 provided in a certain embodiment of this application is shown; Figure 7 A partial cross-sectional schematic diagram of an insulating connector 200 provided in a certain embodiment of this application is shown.

[0099] The insulating connector 200 can be used for insulating support and connection between the busbar 1011 and the fixing member 1012 in the battery device 10.

[0100] In some embodiments, the battery device 10 includes a high-voltage box 101, which includes a current-combining component 1011, an insulating connector 200, and a fixing member 1012. The current-combining component is disposed on one side of the fixing member 1012. One end of the insulating connector 200 is connected to the current-combining component 1011, and the other end is fixedly connected to the fixing member 1012 in a direction away from the current-combining component 1011. The insulating connector 200 includes a housing 210, a connecting portion 220, and a heat-conducting portion 260. The end face of the housing 210 facing the current-combining component 1011 has a first groove 211. The connecting portion 220 is connected to the sidewall of the first groove 211 and is used to connect the current-combining component 1011. The heat-conducting portion 260 is disposed between the connecting portion 220 and the housing 210 to facilitate heat transfer between the connecting portion 220 and the housing 210.

[0101] The fastener 1012 can be a base plate or support plate inside the high-voltage box 101.

[0102] The fastener 1012 can contact the outer casing of the high-voltage box 101 or the housing 11 of the battery device 10, thereby further dissipating heat to the outside.

[0103] The first groove 211 can be provided on one end face of the housing 210 facing the busbar component 1011, or the first groove 211 can be provided on both end faces of the housing 210 facing the busbar component 1011 and the fixing member 1012 respectively. This application embodiment does not limit this.

[0104] The insulating connector 200 can also be called an insulating post. In this application embodiment, the name of the insulating connector 200 is not limited.

[0105] The shape of the first groove 211 is not limited. The figure shows the first groove 211 as a cylinder, but the first groove 211 can also be other shapes, such as prisms. This application embodiment is not limited to this.

[0106] Furthermore, since the insulating connector 200 needs to achieve an insulating connection between the busbar 1011 and the fixing member 1012, if the insulating connector 200 is directly connected to the busbar 1011 or the fixing member 1012, the housing 210 of the insulating connector 200 will directly bear stress, which will make the insulating connector 200 easily damaged, and may affect the reliability of the battery device 10.

[0107] The connecting part 220 connects the busbar 1011 and the fixing part 1012. The connecting part 220 is connected to the side wall of the first groove 211, which can relieve the stress at the connection. During the assembly and use of the insulating connector 200, even if a large stress is generated, the connecting part 220 can absorb part of the stress, thereby protecting the housing 210 of the insulating connector 200.

[0108] Because the current flowing through the busbar 1011 inside the high-voltage box 101 is usually large, the busbar 1011 will generate a lot of heat. If this heat accumulates, it may affect the reliability of the battery device 10. However, the space in the high-voltage box 101 is small, and conventional heat dissipation methods cannot be used.

[0109] By providing a heat-conducting part 260 inside the insulating connector 200, heat is conducted to the fixing member 1012 through the insulating connector 200 without occupying additional external space. On the one hand, it can provide a heat dissipation path for the busbar component 1011, and on the other hand, it can improve the energy density of the battery device 10.

[0110] In the technical solution provided in this application embodiment, the insulating connector 200 provides a heat dissipation path for the busbar component 1011 through the heat-conducting part 260 accommodated in the first groove 211 of the housing 210. Since no additional heat-conducting part needs to be attached outside the insulating connector 200, it occupies less space, which meets the energy density requirements of the battery device 10 and can improve the energy density of the battery device 10. When the busbar component 1011 generates a lot of heat, the heat can be transferred to the insulating connector 200 through the heat-conducting part 260, and then transferred to the fixing member 1012 through the insulating connector 200. Thus, the problem of overheating of the busbar component 1011 can be alleviated, thereby improving the reliability of the battery device 10.

[0111] In some possible embodiments, the end face of the housing 210 facing the fixing member 1012 is also provided with a first groove 211, and a connecting part 220 is provided in the first groove 211. The connecting parts 220 at both ends of the insulating connector 200 are respectively connected to the busbar 1011 and the fixing member 1012.

[0112] The connecting part 220 can be directly connected to the busbar component 1011 or the fixing member 1012 or indirectly connected. For example, when multiple insulating connectors 200 are connected end to end, the end of the insulating connector 200 located in the middle position facing the busbar component 1011 is connected to the busbar component 1011 through other insulating connectors 200, and the end facing the fixing member 1012 is connected to the busbar component 1011 through other insulating connectors 200.

[0113] When the housing 210 is provided with a first groove 211 and a connecting part 220 at both ends, heat can be transferred to both the busbar 1011 and the connecting part 220 connected to the fixing member 1012, thereby transferring the heat of the busbar 1011 more efficiently.

[0114] In the technical solution provided in this application embodiment, by providing a first groove 211 on both end faces of the housing 210 to accommodate the connecting part 220, the connecting part 220 connects the current collector 1011 and the fixing member 1012, thereby making the insulating connecting member 200 have a higher heat transfer efficiency, thereby increasing the heat dissipation efficiency of the current collector 1011, and thus improving the reliability of the battery device 10.

[0115] In some possible embodiments, the substrate of the housing 210 includes an insulating and thermally conductive material, and the thermally conductive part 260 includes a thermally conductive limiting part 261 disposed on the surface of the connecting part 220 facing the sidewall of the first groove 211. The thermally conductive limiting part 261 connects the connecting part 220 and the sidewall of the first groove 211 to limit the movement of the connecting part 220 along the opening direction of the first groove 211.

[0116] Insulating and thermally conductive materials can be, for example, aluminum nitride, silicon nitride, alumina, silicon carbide ceramics, etc.

[0117] In the technical solution provided in this application embodiment, the substrate of the housing 210 is an insulating and thermally conductive material. The connecting part 220 transfers heat from the busbar 1011 to the housing 210 through direct or indirect contact, and further transfers it to the fixing member 1012, thereby enabling auxiliary heat dissipation of the busbar 1011 and improving the stability of the battery device 10.

[0118] Furthermore, the connecting part 220 can be made of metal or ceramic.

[0119] Metal or ceramic materials, while possessing a certain strength, also exhibit good thermal conductivity. Therefore, this improves both the reliability of the insulating connector 200 connection and its heat dissipation performance.

[0120] In the technical solution provided in this application embodiment, the connecting part 220 is connected to the side wall of the first groove 211 through the heat-conducting limiting part 261. The heat-conducting limiting part 261 can both transfer heat and fix the connecting part 220. In addition, since it needs to play a limiting role, the heat-conducting limiting part 261 and the side wall of the first groove 211 are closely fitted, thereby further improving the heat dissipation efficiency of the insulating connector 200 and thus improving the reliability of the battery device 10.

[0121] refer to Figure 6 And further reading Figure 7 In some possible embodiments, the heat-conducting limiting portion 261 includes a plurality of first protrusion structures 2124, which surround the surface of the connecting portion 220 facing the sidewall of the first groove 211, and the surfaces of the plurality of first protrusion structures 2124 away from the connecting portion 220 are provided with threads; wherein, at least two of the first protrusion structures 2124 have threads with opposite directions of rotation.

[0122] Since the housing 210 needs to provide an insulating connection, it is typically made of insulating material. Direct stress on the housing 210 may affect its structure, thereby impacting the insulation performance of the insulating connector 200.

[0123] Multiple first protrusions 2124 are provided on the outer side of the connecting portion 220, and the surfaces of the multiple first protrusions 2124 away from the connecting portion 220 are provided with threads of opposite directions. When the connecting portion 220 is subjected to torque, the threads of opposite directions on the outer side of the connecting portion 220 can provide a certain degree of support for the connecting portion 220. On the other hand, when the connecting portion 220 is subjected to excessive torque, the threads can provide a certain degree of buffering, thereby playing a role in protecting the structure of the housing 210.

[0124] In the technical solution provided in this application embodiment, the connecting part 220 directly bears the torque generated by rotation. The outer side of the connecting part 220 is provided with threads of opposite direction. The sidewall of the first groove 211 is connected to the connecting part 220 through threads of opposite direction, so that the structure of the housing 210 can bear less stress, which is beneficial to maintaining the structure of the insulating connector 200.

[0125] Figure 8 A partial cross-sectional schematic diagram of an insulating connector 200 provided in another embodiment of this application is shown.

[0126] In some possible embodiments, the connecting portion 220 includes: a connecting seat 221, a heat-conducting limiting portion 261 disposed on the surface of the connecting seat 221 facing the side wall of the first groove 211, and a second groove 2211 disposed on the end face of the connecting seat 221 away from the bottom wall of the first groove 211; and an insert 222, which is embedded in the second groove 2211 and is connected to the busbar component 1011 or the fixing member 1012.

[0127] When the connector 220 connects the busbar 1011 or the fastener 1012, the sidewall of the first groove 211 may be affected by torque. By setting the connector 220 as an insert 222 and a connector 221, the connector 221 cooperates with the insert 222 to bear the torque. Even when the connector 220 bears a large torque, the insert 222 and the connector 221 will bear the torque first. Before the housing 210 is damaged by the torque, the insert 222 and the connector 221 will slide first, thereby reducing the possibility of the housing 210 being damaged.

[0128] In the technical solution provided in this application embodiment, the connecting part 220 is configured as an insert 222 and a connecting seat 221. The connecting seat 221 cooperates with the insert 222 to bear the torque. Even when the connecting part 220 bears a large torque, the insert 222 and the connecting seat 221 will bear the torque first, so that the structure of the housing 210 can bear a small stress, which is beneficial to maintaining the structure of the insulating connector 200.

[0129] In some possible embodiments, the portion between the housing 210 and the connection 220 is filled with a thermally conductive medium.

[0130] Because there is a gap between the connecting part 220 and the sidewall of the first groove 211, the contact area between the connecting part 220 and the first groove 211 is reduced. Filling the space between the housing 210 and the connecting part 220 with a thermally conductive medium has several advantages. First, the thermally conductive medium has strong thermal conductivity, which can effectively conduct the heat of the busbar component 1011, thereby assisting in heat dissipation. Second, the filled thermally conductive medium increases the heat transfer contact area between the connecting part 220 and the housing 210, thereby further increasing the heat dissipation.

[0131] In the technical solution provided in this application embodiment, a thermally conductive medium is filled between the housing 210 and the connecting portion 220. On the one hand, the thermally conductive medium can effectively conduct the heat of the busbar component 1011, thereby assisting the busbar component 1011 in heat dissipation. On the other hand, the filled thermally conductive medium increases the heat transfer contact area between the connecting portion 220 and the housing 210, thereby further increasing the heat dissipation and thus improving the reliability of the battery device 10.

[0132] Combination Figures 9 to 12 This application describes an insulating connector 200 provided in yet another embodiment.

[0133] Figure 9 A partial cross-sectional schematic diagram of an insulating connector 200 provided in yet another embodiment of this application is shown; Figure 10 An assembly diagram of an insulating connector 200 according to another embodiment of this application is shown; Figure 11 This illustrates another possible partial cross-sectional schematic diagram of an insulating connector 200 provided in yet another embodiment of this application; Figure 12 This shows another possible partial cross-sectional schematic diagram of an insulating connector 200 provided in yet another embodiment of the present application.

[0134] In some possible embodiments, the connecting portion 220 includes: a cavity 228 filled with a heat-conducting medium; and a heat-conducting port 229 disposed on the bottom wall of the connecting portion 220 facing the first groove 211, the heat-conducting port 229 communicating with the cavity 228.

[0135] In the technical solution provided in this application embodiment, a heat-conducting medium is filled between the housing 210 and the connecting part 220, and a heat-conducting port 229 is provided on the bottom wall of the connecting part 220 facing the first groove 211. The heat-conducting port 229 communicates with the cavity 228, which is also filled with a heat-conducting medium. When the connecting part 220 is assembled to the insulating connector 200, the heat-conducting medium can contact the heat-conducting medium in the cavity 228 through the heat-conducting port 229, thereby forming a heat conduction path to better transfer heat. This design can increase the contact area between the heat-conducting medium and the connecting part 220, and the connecting part 220 can better transfer the heat received from the busbar 1011, thereby improving the heat dissipation efficiency of the insulating connector 200.

[0136] In some possible embodiments, a heat-conducting cavity 2101 is provided on the bottom wall of the first groove 211, and the heat-conducting cavity 2101 is filled with a heat-conducting medium. This can accelerate the efficiency of heat transfer from the bottom wall of the first groove 211, thereby further assisting the heat dissipation of the busbar component 1011.

[0137] The following is combined Figures 13 to 22 This application also provides an insulating connector 200 according to another embodiment.

[0138] Figure 13 An exploded perspective view of an insulating connector 200 provided in another embodiment of this application is shown; Figure 14 A partial cross-sectional schematic diagram of an insulating connector 200 provided in another embodiment of this application is shown; Figure 15 A perspective view of an insulating connector 200 provided in another embodiment of this application is shown; Figure 16 This is a perspective view of the extended state of the insulating connector 200 provided in another embodiment of the present application; Figure 17 This application shows Figure 15 A partial cross-sectional schematic diagram of the provided insulating connector 200; Figure 18 Other possible perspective views of the insulating connector 200 provided in another embodiment of this application are shown; Figure 19 This application also shows other possible perspective views of the extended state of the insulating connector 200 provided in another embodiment; Figure 20 This application shows Figure 18 A cross-sectional schematic diagram of the provided insulating connector 200; Figure 21 A perspective view of an insulating connector 200 provided in another embodiment of this application is shown, with both ends in an extended state. Figure 22 This application shows Figure 18 Other possible cross-sectional schematic diagrams of the provided insulating connector 200.

[0139] In some possible embodiments, the insulating connector 200 further includes a height adjustment component 230, which is received in the first groove 211, and the height adjustment component 230 is used to adjust the height of the insulating connector 200 via the connecting portion 220.

[0140] The height direction of housing 210 can be considered as the direction in which housing 210 connects to the busbar 1011 and the fixing member 1012 in high voltage box 101, or as the direction of extension of the length of housing 210. The figure uses the Z direction as a schematic representation of the height direction of housing 210, but this embodiment does not limit it.

[0141] Busbar 1011 may sometimes need to connect interfaces at different heights, which may require the use of insulating connectors 200 at different heights to support busbar 1011.

[0142] The height adjustment component 230 can adjust the height of the insulating connector 200 via the connecting part 220.

[0143] At this time, since the connecting part 220 moves along the opening direction of the first groove 211, there is a certain space between it and the bottom wall of the first groove 211, making it more difficult for heat to be transferred through the insulating connector 200. Therefore, providing the heat-conducting part 260 can enhance the heat transfer between the connecting part 220 and the housing 210, and improve the heat dissipation efficiency of the busbar 1011.

[0144] In the technical solution provided by this application embodiment, on the one hand, by providing a height adjustment component 230 in the first groove 211, when the interfaces of the insulating connected high-voltage box 101 have different height differences, the height of the insulating connector 200 can be adjusted to meet the connection requirements of different height differences, without the need to produce multiple models of insulating connectors 200 for the high-voltage box 101. Furthermore, since the height is adjustable, the insulating connector 200 can be compatible with multiple models of high-voltage box 101. The processing of the insulating connector 200 and the high-voltage box 101 is simpler, thereby saving the manufacturing cost of the battery device 10. On the other hand, the heat-conducting part 260 can improve the problem of reduced heat dissipation efficiency caused by the expansion and contraction of the connecting part 220, thereby improving the reliability of the battery device 10.

[0145] In some possible embodiments, the height adjustment assembly 230 includes: a first height adjustment part 231 disposed on the side of the connecting part 220 facing the sidewall of the first groove 211; and a second height adjustment part 232 disposed on the sidewall of the first groove 211 facing the connecting part 220; the first height adjustment part 231 and the second height adjustment part 232 cooperate to adjust the height of the insulating connector 200.

[0146] A first height adjustment part 231 is provided on the outer wall of the connecting part 220, and a second height adjustment part 232 is provided on the inner wall of the first groove 211. The height of the insulating connector 200 is adjusted by the cooperation of the two parts, so that the insulating connector 200 can be adapted to the connection of interfaces with different height differences. At the same time, since the first height adjustment part 231 and the second height adjustment part 232 are respectively provided on the outer wall of the connecting part 220 and the inner wall of the first groove 211, the volume of the insulating connector 200 is not increased, and the volume occupied by the insulating connector 200 is reduced, thereby improving the energy density of the battery device 10.

[0147] This application embodiment exemplifies the use of a first height adjustment part 231 including a first protrusion 2311 disposed on the outer wall of the connecting part 220, and a second height adjustment part 232 including a spiral groove 2321 disposed on the inner wall of the first groove 211, but this embodiment is not limited thereto. For example, both the first height adjustment part 231 and the second height adjustment part 232 can be threaded. As another example, the first height adjustment part 231 may include a protruding structure, and the second height adjustment part 232 may include an I-beam groove disposed on the side wall of the first groove 211, with the height of the insulating connector 200 adjusted by the movement of the protruding structure within the I-beam groove.

[0148] For example, a protruding structure can be provided on the side wall of the first groove 211, and a spiral groove 2321 or an I-shaped groove can be provided on the outer wall of the connecting part 220. The embodiments of this application are not limited thereto.

[0149] The technical solution provided in this application embodiment includes a first height adjustment part 231 on the outer wall of the connecting part 220 and a second height adjustment part 232 on the inner wall of the first groove 211. The height of the insulating connector 200 is adjusted through their cooperation, enabling the insulating connector 200 to adapt to connections at interfaces with different height differences. Simultaneously, since the first height adjustment part 231 and the second height adjustment part 232 are respectively located on the outer wall of the connecting part 220 and the inner wall of the first groove 211, the volume of the insulating connector 200 is not increased, saving additional space occupied by the height adjustment component 230. This reduces the volume occupied by the insulating connector 200, which is suitable for the small space requirements of the battery device 10, thereby improving the energy density of the battery device 10.

[0150] In some possible embodiments, the first groove 211 is a cylindrical groove, and the second height adjustment part 232 includes a spiral groove 2321, in which the first height adjustment part 231 is at least partially accommodated.

[0151] Since the first groove 211 is a cylindrical groove and a spiral groove 2321 is provided on the side wall of the first groove 211, the first height adjustment part 231 is at least partially accommodated in the spiral groove 2321. When the connecting part 220 rotates relative to the side wall of the first groove 211, the spiral groove 2321 and the first height adjustment part 231 accommodated therein can convert the relative rotational motion into a motion in the height direction, so that the connecting part 220 can extend and retract relative to the housing 210 in the height direction, thereby making it easier to adjust the height of the insulating connector 200.

[0152] The relative rotation between the housing 210 and the connecting portion 220 can be achieved by rotating the connecting portion 220, and the relative rotation between the housing 210 and the connecting portion 220 can also be achieved by rotating the housing 210. In the accompanying drawings of this application embodiment, the relative rotation between the housing 210 and the connecting portion 220 is achieved by rotating the housing 210, but the embodiments of this application are not limited thereto.

[0153] In the technical solution provided in this application embodiment, the second height adjustment part 232 includes a spiral groove 2321, and the first height adjustment part 231 is at least partially accommodated within the spiral groove 2321, thereby enabling the insulating connector 200 to adjust its height through the relative rotational movement between the connecting part 220 and the housing 210. Since the height of the insulating connector 200 can be adjusted by rotation, the adjustment is relatively simple and less likely to damage the insulating connector 200, thereby improving the stability of the insulating connector 200 and consequently improving the stability of the battery device 10.

[0154] In some possible embodiments, the first height adjustment portion 231 includes a first protrusion 2311 that protrudes toward the sidewall of the first groove 211.

[0155] The first protrusion 2311 protrudes from the sidewall facing the first groove 211 and is at least partially accommodated within the spiral groove 2321. The spiral groove 2321 guides the first protrusion 2311 along a specific trajectory, converting rotational motion into linear displacement. Thus, the height of the insulating connector 200 can be adjusted by rotating the connecting part 220 to move it in the height direction.

[0156] The embodiments of this application do not limit the way in which the connecting part 220 and the housing 210 rotate relative to each other. For example, in some embodiments, the side wall of the first groove 211 can rotate, so the side wall of the first groove 211 can also be rotated to make the connecting part 220 and the housing 210 rotate relative to each other.

[0157] In the technical solution provided in this application embodiment, the first height adjustment part 231 includes a first protrusion 2311 disposed on the outer wall of the connecting part 220, and the first protrusion 2311 is at least partially accommodated in the spiral groove 2321. When the connecting part 220 rotates relative to the housing 210, the spiral groove 2321 pushes the first protrusion 2311, so that the connecting part 220 can move along the height direction, thereby easily realizing the adjustment of the height of the insulating connector 200.

[0158] In some possible embodiments, the sidewall of the first groove 211 includes a first sub-wall 2121 and a second sub-wall 2122. The second sub-wall 2122 is sleeved on the outside of the connecting portion 220, and the first sub-wall 2121 is disposed on the outside of the second sub-wall 2122. The spiral groove 2321 is disposed on the side of the first sub-wall 2121 facing the connecting portion 220. The second sub-wall 2122 includes a first limiting groove 233, which penetrates the second sub-wall 2122 and extends along the height direction of the housing 210. The free end of the first protrusion 2311 passes through the first limiting groove 233 to be accommodated in the spiral groove 2321.

[0159] When the connecting part 220 rotates relative to the housing 210, the connecting part 220 may be driven to rotate, which may affect the reliability of the connection between the connecting part 220 and the busbar 1011 or the fastener 1012.

[0160] The free end of the first protrusion 2311 passes through the first limiting groove 233 and is accommodated in the spiral groove 2321. During the process of the spiral groove 2321 pushing the first protrusion 2311, the first limiting groove 233 can restrict the rotation of the connecting part 220 and orient the connecting part 220 to move linearly.

[0161] In the technical solution provided in this application embodiment, the free end of the first protrusion structure 2124 passes through the first limiting groove 233 disposed on the second sub-wall 2122. During the movement of the first protrusion 2311 driven by the spiral groove 2321, the first limiting groove 233 can restrict the rotation of the connecting part 220, thereby enabling the height adjustment of the insulating connector 200 by rotating only the first sub-wall 2121 without the connecting part 220 rotating. On the one hand, the free end of the first protrusion structure 2124 passing through the first limiting groove 233 can reduce the possibility of loosening of the connection between the connecting part 220 and the busbar component 1011 or the fixing member 1012. On the other hand, this design can also adjust the height of the insulating connector 200 when the insulating connector 200 is in the connected state, thereby further improving the adaptability of the insulating connector 200.

[0162] In some possible embodiments, the second sub-wall 2122 further includes a second limiting groove 234, which extends through the second sub-wall 2122 and extends circumferentially along the second sub-wall 2122 and communicates with the first limiting groove 233.

[0163] The circumferential direction of the second sub-wall 2122 can be understood as the direction in which the second sub-wall 2122 surrounds. That is, the circumferential direction of the cross-section of the second sub-wall 2122.

[0164] The number of second limiting grooves 234 can be one or more. For example, this application embodiment takes two second limiting grooves 234 as an example, but this application embodiment is not limited to this.

[0165] During the sliding process of the first protrusion 2311, driven by the spiral groove 2321 and within the first limiting groove 233, when the height of the insulating connector 200 meets the preset height, the height of the insulating connector 200 needs to be fixed at this time. By providing a second limiting groove 234 extending circumferentially along the second sub-wall 2122 and communicating with the first limiting groove 233, when the first protrusion 2311 moves to the position where the first limiting groove 233 and the second limiting groove 234 are connected, the connecting part 220 and the housing 210 can be further rotated relative to each other, allowing the first protrusion 2311 to enter the second limiting groove 234, thereby restricting the continued movement of the connecting part 220. When it is necessary to retract the insulating connector 200, the connecting part 220 and the housing 210 can be rotated relative to each other in opposite directions. After rotating to a certain extent, the first protrusion 2311 can re-enter the first limiting groove 233. This design also allows the first protrusion 2311, which enters the second limiting groove 234, to rotate a certain angle before entering the first limiting groove 233, thus giving the insulating connector 200 a certain self-locking capability.

[0166] In the technical solution provided in this application embodiment, by setting a second limiting groove 234 that extends circumferentially along the second sub-wall 2122 and communicates with the first limiting groove 233, on the one hand, the movement range of the connecting part 220 in the height direction can be limited, and on the other hand, the second limiting groove 234 can have a certain locking ability for the connecting part 220. Before the connecting part 220 and the housing 210 rotate relative to each other by a certain angle, the first protrusion 2311 is in the second limiting groove 234, which can reduce the possibility of reduced connection reliability caused by the movement of the connecting part 220 in the height direction.

[0167] In some possible embodiments, the first height adjustment part 231 includes: threaded teeth 2312, which are adapted to the spiral groove 2321.

[0168] In the technical solution provided in this application embodiment, the first height adjustment part 231 includes threaded teeth 2312. The threaded teeth 2312 cooperate with the spiral groove 2321. On the one hand, the cooperation between the threaded teeth 2312 and the spiral groove 2321 is more secure, and the connecting part 220 is less likely to slip along the height direction. On the other hand, the contact area between the threaded teeth 2312 and the spiral groove 2321 is large, and heat can be efficiently transferred from the busbar 1011 to the insulating connector 200, and further efficiently transferred to the fixing member 1012, thereby alleviating the problem of overheating of the busbar 1011 and improving the reliability of the battery device 10.

[0169] In some possible embodiments, the tooth profile of the thread tooth 2312 is an asymmetrical trapezoid or an asymmetrical triangle.

[0170] The tooth profile of the thread 2312 is an asymmetrical trapezoid or an asymmetrical triangle. When a force is applied to the connecting part 220 along the height direction of the housing 210, the asymmetrical trapezoid or asymmetrical triangle tooth profile can achieve self-locking, thereby reducing the possibility of slippage caused by the connecting part 220 being subjected to external force.

[0171] In the technical solution provided in this application embodiment, the first height adjustment part 231 includes a threaded tooth 2312 disposed on the outer wall of the connecting part 220, and the second height adjustment part 232 includes a spiral groove 2321 disposed on the inner wall of the adjusting sleeve. The tooth profile of the threaded tooth 2312 is an asymmetrical trapezoid or an asymmetrical triangle. The height of the insulating connector 200 can be adjusted by rotation between the side walls of the connecting part 220 and the first groove 211. At the same time, the height of the insulating connector 200 can be self-locking, thereby improving the reliability of the electrical connection of the battery device 10.

[0172] In some possible embodiments, the pitch of the threaded teeth 2312 decreases along the direction of the opening of the first groove 211.

[0173] In the technical solution provided in this application embodiment, the pitch of the threaded teeth 2312 decreases along the direction of the opening of the first groove 211. On the one hand, the closer the connecting part 220 is to the bottom of the first groove 211, the more stable the connection between the connecting part 220 and the housing 210, which is beneficial to improving the self-locking capability of the threaded fit. On the other hand, the farther the connecting part 220 is from the bottom of the first groove 211, the greater the distance the connecting part 220 moves along the height direction in one rotation, which is beneficial to the height adjustment effect.

[0174] In some possible embodiments, the sidewall of the first groove 211 includes a reinforcing wall 2123, which is sleeved on the outside of the connecting portion 220; the outer side of the reinforcing wall 2123 is provided with a plurality of first protrusions 2124 spaced apart along the height direction, and the surfaces of the plurality of first protrusions 2124 away from the connecting portion 220 are provided with threads; wherein, at least two of the first protrusions 2124 have threads with opposite directions of rotation.

[0175] Since the housing 210 needs to provide an insulating connection, it is typically made of insulating material. Direct stress on the housing 210 may affect its structure, thereby impacting the insulation performance of the insulating connector 200.

[0176] Multiple first protrusions 2124 are provided on the outer side of the reinforcing wall 2123, and the surfaces of the multiple first protrusions 2124 away from the connecting portion 220 are provided with threads in opposite directions. When the connecting portion 220 is subjected to torque, the threads in opposite directions on the outer side of the reinforcing wall 2123 can provide a certain degree of support for the connecting portion 220. On the other hand, when the connecting portion 220 is subjected to excessive torque, the threads can provide a certain degree of buffering, thereby playing a role in protecting the structure of the housing 210.

[0177] In the technical solution provided in this application embodiment, the sidewall of the first groove 211 includes a reinforcing wall 2123. The reinforcing wall 2123 is threadedly engaged with the connecting part 220. The reinforcing wall 2123 directly bears the torque generated by rotation. The outer side of the reinforcing wall 2123 is provided with threads of opposite direction, so that the structure of the housing 210 can bear less stress, which is beneficial to maintaining the structure of the insulating connector 200.

[0178] In some possible embodiments, a third groove 223 is provided on the side of the connecting portion 220 at one end away from the bottom wall of the first groove 211, and the side wall of the third groove 223 is provided with an internal thread 224; the connecting portion 220 at the other end is provided with a second protrusion 225, the second protrusion 225 protrudes in a direction away from the bottom wall of the first groove 211, and the outer wall of the second protrusion 225 is provided with an external thread 226; wherein the internal thread 224 and the external thread 226 are adapted to each other.

[0179] In the technical solution provided in this application embodiment, the connecting portions 220 at both ends of the insulating connector 200 are respectively provided with a third groove 223 having an internal thread 224 and a second protrusion 225 having an external thread 226, so that the insulating connectors 200 can be connected to each other, thereby assembling insulating connectors 200 of different heights, and thus adapting to the support and transfer of the busbar component 1011 under different height differences.

[0180] The height of the insulating connector 200 can be non-fixed; for example, different insulating connectors 200 can have different heights.

[0181] In some possible embodiments, multiple insulating connectors 200 may be connected together, for example, as Figure 21 As shown, the insulating connector 200 may have a third groove 223 provided at both ends of the connecting portion 220, and the sidewalls of the third groove 223 may have internal threads 224. Correspondingly, the other insulating connector 200 may be an insulating connector 200 with external threads 226 provided at both ends, or it may have a second protrusion 225 at one end and a third groove 223 at the other end. The embodiments of this application are not limited thereto.

[0182] Furthermore, the connecting part 220 can be connected to the housing 210 via the height adjustment component 230, or it can be fixedly connected to the housing 210. In this case, since the connecting parts 220 of different individual insulating connectors 200 cooperate with each other to adjust the height of the entire insulating connector 200, the connecting part 220 is the height adjustment component 230.

[0183] In some possible embodiments, the portion of the housing 210 located between the two first grooves 211 is provided with a plurality of third protrusions 213, the plurality of third protrusions 213 protruding radially toward the housing 210, and the side of the plurality of third protrusions 213 radially away from the housing 210 is planar.

[0184] The side of the plurality of third protrusions 213 that is radially away from the housing 210 is flat, which is beneficial for fixing the insulating connector 200 during operation. For example, the flat surface of the third protrusion 213 can be used for clamping a wrench, thereby facilitating assembly within the high-voltage box 101.

[0185] Furthermore, the shape of the orthographic projection of the portion of the housing 210 located between the two first grooves 211 along the height direction can be rectangular, hexagonal, or octagonal.

[0186] According to some embodiments of this application, this application also provides a battery device 10, including an insulating connector 200 of any of the above schemes.

[0187] According to some embodiments of this application, this application also provides an electrical device including a battery device 10 of any of the above schemes, and the battery device 10 is used to provide electrical energy to the electrical device.

[0188] The power supply device can be any of the aforementioned devices or systems that utilize battery device 10.

[0189] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized in that, The battery device includes: A high-voltage box (101) includes a busbar (1011), an insulating connector (200), and a fixing member (1012). The busbar (1011) is disposed on one side of the fixing member (1012). One end of the insulating connector (200) is connected to the busbar (1011), and the other end is fixedly connected to the fixing member (1012) in a direction away from the busbar (1011). The insulating connector (200) includes a housing (210), a connecting part (220), and a heat-conducting part (260). The housing (210) has a first groove (211) on its end face facing the busbar (1011). The connecting part (220) is connected to the side wall of the first groove (211) and is used to connect the busbar (1011). The heat-conducting part (260) is disposed between the connecting part (220) and the housing (210) to facilitate heat transfer between the connecting part (220) and the housing (210).

2. The battery device according to claim 1, characterized in that, The first groove (211) is also provided on the end face of the housing (210) facing the fixing member (1012). The connecting part (220) is provided in the first groove (211). The connecting parts (220) at both ends of the insulating connector (200) are respectively connected to the busbar (1011) and the fixing member (1012).

3. The battery device according to claim 2, characterized in that, The substrate of the housing (210) includes an insulating and thermally conductive material, and the thermally conductive part (260) includes: A heat-conducting limiting part (261) is disposed on the surface of the connecting part (220) facing the side wall of the first groove (211). The heat-conducting limiting part (261) connects the connecting part (220) and the side wall of the first groove (211) to restrict the movement of the connecting part (220) along the opening direction of the first groove (211).

4. The battery device according to claim 3, characterized in that, The thermally conductive limiting part (261) includes: A plurality of first protrusions (2124) are provided on the surface of the connecting portion (220) facing the sidewall of the first groove (211), and the surfaces of the plurality of first protrusions (2124) away from the connecting portion (220) are provided with threads; In this case, the threads of at least two of the first protrusion structures (2124) are in opposite directions.

5. The battery device according to claim 3, characterized in that, The connecting part (220) includes: Connecting seat (221), the heat-conducting limiting part (261) is disposed on the surface of the connecting seat (221) facing the side wall of the first groove (211), and the end face of the connecting seat (221) away from the bottom wall of the first groove (211) is provided with a second groove (2211). An insert (222) is embedded in the second groove (2211) and the insert (222) is connected to the busbar (1011) or the fixing member (1012).

6. The battery device according to claim 1, characterized in that, The portion between the housing (210) and the connecting part (220) is filled with a heat-conducting medium.

7. The battery device according to claim 6, characterized in that, The connecting part (220) includes: A cavity (228) is filled with a thermally conductive medium; A heat-conducting port (229) is provided on the bottom wall of the connecting part (220) facing the first groove (211), and the heat-conducting port (229) communicates with the cavity (228).

8. The battery device according to claim 1, characterized in that, The bottom wall of the first groove (211) is provided with a heat-conducting cavity (2101), and the heat-conducting cavity (2101) is filled with a heat-conducting medium.

9. The battery device according to claim 1, characterized in that, The insulating connector (200) further includes: A height adjustment component (230) is accommodated in the first groove (211), the height adjustment component (230) being used to adjust the height of the insulating connector (200) via the connecting portion (220).

10. The battery device according to claim 9, characterized in that, The height adjustment assembly (230) includes: The first height adjustment part (231) is provided on the side of the connecting part (220) facing the side wall of the first groove (211); The second height adjustment part (232) is provided on the side wall of the first groove (211) facing the connecting part (220); The first height adjustment unit (231) cooperates with the second height adjustment unit (232) to adjust the height of the insulating connector (200).

11. The battery device according to claim 10, characterized in that, The first groove (211) is a cylindrical groove, and the second height adjustment part (232) includes: The spiral groove (2321) is at least partially accommodated within the first height adjustment part (231).

12. The battery device according to claim 11, characterized in that, The first height adjustment unit (231) includes: The first protrusion (2311) protrudes toward the sidewall of the first groove (211).

13. The battery device according to claim 11, characterized in that, The first height adjustment unit (231) includes: Threaded teeth (2312) are adapted to the spiral groove (2321).

14. The battery device according to claim 9, characterized in that, One end of the connecting portion (220) is provided with a third groove (223) on the side away from the bottom wall of the first groove (211), and the side wall of the third groove (223) is provided with an internal thread (224); the other end of the connecting portion (220) is provided with a second protrusion (225), the second protrusion (225) protrudes in a direction away from the bottom wall of the first groove (211), and the outer wall of the second protrusion (225) is provided with an external thread (226). The internal thread (224) and the external thread (226) are adapted to each other.

15. The battery device according to any one of claims 1 to 14, characterized in that, The portion of the housing (210) located between the two first grooves (211) is provided with a plurality of third protrusions (213), the plurality of third protrusions (213) protruding radially toward the housing (210), and the side of the plurality of third protrusions (213) radially away from the housing (210) is a plane.

16. An electrical appliance, characterized in that, The electrical device includes: The battery device according to any one of claims 1 to 15, wherein the battery device is used to provide electrical energy.

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