Battery device and electric device

Abstract

The utility model belongs to the technical field of batteries, and provides a battery device and a power utilization device.The battery device comprises a box body, battery monomers and a high-voltage power distribution unit; the battery monomers are arranged in the box body; the high-voltage power distribution unit is used for distributing electric energy of the battery monomers, the high-voltage power distribution unit comprises a mounting seat, a limiting piece, a circuit board fixedly arranged on the mounting seat and an electrical piece arranged on the circuit board, the mounting seat is provided with a limiting cavity, and at least part of the structure of at least part of the electrical piece is located in the limiting cavity; the limiting piece is arranged in the limiting cavity and located between the electrical piece and the inner wall of the limiting cavity, and the limiting piece is used for limiting the electrical piece. The utility model aims to reduce the influence on the firmness degree of connection between an electrical part and a circuit board connected with the electrical part due to vibration of the electrical part relative to the circuit board in the running process of a vehicle.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of batteries, and particularly relates to a battery device and a power utilization device. BACKGROUND

[0002] With the rise of new energy equipment represented by new energy vehicles, a battery device has become a key power source. The battery device includes a box body, a battery monomer, and a high-voltage power distribution system. The battery monomer is a main component for charging and discharging, and the battery monomer is stored in the box body in the form of a battery monomer assembly. The high-voltage power distribution system distributes high-voltage power of a power battery to a motor controller, a driving motor, an electric air conditioner compressor, a PTC heater, a DC / DC, and other high-voltage electrical equipment. At the same time, the high-voltage power distribution system distributes high-voltage charging current of an alternating current and DC charging interface to the power battery to charge the power battery.

[0003] The high-voltage power distribution system involves more electrical components. The electrical components are arranged on a circuit board, and the circuit board is fixedly arranged in a high-voltage box. However, during vehicle driving, the electrical components may vibrate or shake relative to the circuit board, which affects the firmness of the connection between the two. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the application provides a battery device and a power utilization device, which aims to reduce the influence of the firmness of the connection between the electrical components and the circuit board due to the vibration of the electrical components relative to the circuit board during vehicle driving.

[0005] To solve the above problems, in a first aspect, the application provides a battery device, comprising:

[0006] a box body;

[0007] a battery monomer arranged in the box body; and

[0008] a high-voltage power distribution unit for distributing electrical energy of the battery monomer, the high-voltage power distribution unit comprising a mounting seat, a limiting piece, a circuit board fixedly arranged on the mounting seat, and an electrical component arranged on the circuit board, the mounting seat having a limiting cavity, at least part of the structure of at least part of the electrical component being located in the limiting cavity; the limiting piece being arranged in the limiting cavity and located between the electrical component and the inner wall of the limiting cavity, and the limiting piece being used for limiting the electrical component.

[0009] The technical scheme of the embodiment makes the electrical component be arranged in the limiting cavity in addition to being arranged on the circuit board, the limiting cavity plays a certain protection role on the electrical component, meanwhile, the limiting part is arranged between the electrical component and the inner wall of the limiting cavity, when the electrical component vibrates or shakes relative to the circuit board, the amplitude of the relative vibration or shaking can be reduced under the action of the limiting part, the structure of the limiting part is simpler and more flexible, and the limiting part can be arranged in a matched form according to the structure of the electrical component, and a suitable mounting position is selected in the limiting cavity, thereby increasing the limiting effect.

[0010] In one embodiment of the first aspect, the limiting part is an elastic limiting part. When the electrical component shakes relative to the circuit board, the limiting part can be touched, the limiting part limits the electrical component to reduce the vibration amplitude, and the limiting part is an elastic limiting part, which can be made of a plastic material with elasticity, that is, the limiting part has a certain vibration buffering function, so that the electrical component is effectively protected from hard collision with the limiting part. The limiting part can be made of the same material as the mounting seat and can be integrally injection molded with the mounting seat to form an integrated structure.

[0011] In one embodiment of the first aspect, the limiting part includes two first plates arranged opposite to each other and spaced apart, and a second plate connected to the same side end of the two first plates, and the electrical component is arranged between the two first plates.

[0012] The effect of the embodiment is that the limiting part is arranged in the form of three plates connected to each other and surrounding the electrical component, which is simple in structure and easy to operate, and can effectively limit the electrical component.

[0013] In one embodiment of the first aspect, the limiting cavity has a cavity opening and a bottom wall arranged opposite to the cavity opening, the second plate is arranged opposite to the bottom wall and has a gap between the second plate and the bottom wall, and the end of the first plate away from the second plate is connected to the side wall between the cavity opening and the bottom wall.

[0014] The effect of the embodiment is that the second plate is located at the bottom wall and can contact the end surface of the electrical component first entering the limiting cavity, the two first plates are arranged opposite to each other and located at the side wall, and can contact two opposite sides of the electrical component to form a clamping structure, which can effectively reduce the vibration of the electrical component, and when the limiting part is an elastic limiting part, a gap is further provided between the second plate and the bottom wall to increase the elastic displacement of the limiting part, and the first plate is connected to the side wall through the end away from the second plate, so that the elastic displacement of the limiting part is increased and the hard collision between the electrical component and the limiting part is reduced.

[0015] In one embodiment of the first aspect, the first plate member comprises a first plate segment and a second plate segment, one end of the second plate segment is connected to the second plate member, the first plate segment is connected to the other end of the second plate segment away from the second plate member, and the distance between the first plate segments of the two first plate members gradually increases from the second plate segment to the direction of the cavity opening.

[0016] The effect of this embodiment is that the first plate segment first plays a guiding role, facilitating the entry of the electrical component.

[0017] In one embodiment of the first aspect, a gap is formed between the second plate segment and the side wall, one end of the first plate segment is connected to the side wall, and the other end of the first plate segment is connected to the second plate segment. This embodiment forms a gap between the second plate segment and the side wall, and when the limiting member is an elastic limiting portion made of an elastic material, the movable amount of the limiting member is increased, which is beneficial to the elastic buffering effect of the second plate segment.

[0018] In one embodiment of the first aspect, the bottom wall is provided with a protruding portion, the surface of the protruding portion facing the second plate member is an arc surface, the second plate member is provided with a recessed portion, the protruding portion is at least partially located in the recessed portion, and the recessed portion has an inner concave surface that is adapted to the arc surface.

[0019] The effect of this embodiment is that the protruding portion enters the recessed portion, so that the second plate member forms a support, which limits the position of the second plate member to a certain extent, prevents the second plate member from deviating too much, and makes the second plate member be in a reasonable position and in contact with the insertion end of the electrical component. At the same time, this support is not locked, and when the limiting member is an elastic limiting portion made of an elastic material, the inner concave surface and the arc surface are adapted to each other, and they can slide relative to each other, which increases the elastic displacement amount of the second plate member, is beneficial to the buffering effect, and the first plate member and the second plate member are connected. When the second plate member has a certain displacement amount, the first plate member avoids being too limited and can also maintain a certain elastic displacement amount, which increases the overall buffering effect.

[0020] In one embodiment of the first aspect, a spring is arranged on each of the opposite surfaces of the two first plate members, one end of the spring close to the cavity opening is connected to the first plate member, and the other end is a free end, and the spring is used to abut against the electrical component.

[0021] The effect of this embodiment is that the spring is added, so that the first plate member and the electrical component maintain a force through the spring, which can increase the limiting effect on the electrical component, and also has a buffering effect.

[0022] In one embodiment of the first aspect, one side of the second plate member facing the cavity opening is provided with a groove, the shape of the groove is matched with the shape of the insertion end of the electrical component inserted into the limiting cavity, and the insertion end of the electrical component is located in the groove.

[0023] In this embodiment, the electrical component is not simply in contact with the plate surface of the second plate member, but a groove is provided on the second plate member, which is matched with the insertion end of the electrical component. When the electrical component is inserted, it can enter the groove, which limits the electrical component and increases the limiting effect, reducing the vibration of the electrical component. When the electrical component is a relay, its insertion end is a rectangular surface, and the groove can be a rectangular shallow groove.

[0024] In one embodiment of the first aspect, the two first plate members are respectively located on the upper side and the lower side of the electrical component along the gravity direction.

[0025] The effect of this embodiment is to arrange two first plate members on the upper side and the lower side of the electrical component, thereby reducing the vibration amplitude of the electrical component in the gravity direction.

[0026] In one embodiment of the first aspect, the electrical component further comprises an electrical body and an electrical connection part, the electrical connection part is used to electrically connect the circuit board and the electrical body, and the electrical body is fixedly connected with the circuit board.

[0027] The electrical component of this embodiment realizes mechanical connection and electrical connection with the circuit board.

[0028] In one embodiment of the first aspect, the electrical body is bonded with the circuit board.

[0029] The bonding adopted in this embodiment is a kind of efficient and simple mechanical connection method. The electrical body and the circuit board are bonded with each other, which can effectively realize the mechanical connection between the electrical body and the circuit board, and increase the convenience and firmness of the connection.

[0030] In one embodiment of the first aspect, the high-voltage power distribution unit further comprises a bonding member, the bonding member is used to bond the electrical body and the circuit board and is arranged around the electrical body.

[0031] In this embodiment, the electrical body and the circuit board are bonded by the bonding member. The bonding member can be a colloid, part of which contacts the electrical body and the other part contacts the circuit board, so that the two can be firmly bonded. In this embodiment, the bonding member is arranged around the electrical body, realizing the full-range connection in the circumferential direction and increasing the firmness of the connection.

[0032] In the second aspect, the application also provides a power consumption device comprising the battery device provided in any one of the embodiments. The stability of the use of the power consumption device is increased.

[0033] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clearly understood and implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application will be described. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0035] Figure 1 Structure diagram of a vehicle according to some embodiments of the present application;

[0036] Figure 2 Structure diagram of a battery device according to some embodiments of the present application;

[0037] Figure 3 Structure diagram of a circuit board, an electrical component and a mounting seat according to some embodiments of the present application;

[0038] Figure 4 Structure diagram of a circuit board according to some embodiments of the present application; Figure 3 Structure diagram of a circuit board according to some embodiments of the present application;

[0039] Figure 5 Structure diagram of a circuit board according to some embodiments of the present application; Figure 4 Structure diagram of a circuit board according to some embodiments of the present application;

[0040] Figure 6 Structure diagram of a limiting member in a limiting cavity according to some embodiments of the present application;

[0041] Figure 7 Structure diagram of a limiting member according to some embodiments of the present application; Figure 6 Structure diagram of a limiting member according to some embodiments of the present application;

[0042] Figure 8 Right view of a limiting member according to some embodiments of the present application; Figure 7 Left view of a limiting member according to some embodiments of the present application.

[0043] Figure 9 Left view of a limiting member according to some embodiments of the present application. Figure 7

[0044] Reference signs in the specific embodiments are as follows:

[0045] 1000, vehicle;

[0046] 100, battery device; 200, controller; 300, motor; ​

[0047] 10, box; 11, battery monomer; 12, circuit board; 13, electrical component; 14, mounting seat; 15, limiting cavity; 17, relay; 18, limiting piece; 181, first plate piece; 1811, first plate segment; 1812, second plate segment; 182, second plate piece; 19, bottom wall; 20, side wall; 21, protruding part; 22, recessed part; 23, elastic sheet; 24, groove. DETAILED DESCRIPTION

[0048] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0050] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly and specifically limited.

[0051] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0052] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0053] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0054] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0055] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0056] Currently, judging from market trends, the application of battery devices is becoming increasingly widespread. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military and police equipment and aerospace. With the continuous expansion of battery application areas, the market demand is also constantly increasing.

[0057] The battery unit is a complete structural unit, including a housing. Multiple individual battery cells are housed inside the housing; in some special scenarios, only one individual battery cell may be housed inside the housing. When there are multiple individual battery cells, they can be arranged in a row to form a battery cell assembly.

[0058] 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.

[0059] A battery device may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed series-parallel configurations via a busbar.

[0060] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0061] As an example, the battery cell assembly can be a battery module, and the battery cell assembly is formed by arranging and fixing a plurality of battery cells into one independent module. As an example, the battery cell assembly can be formed by bundling a plurality of battery cells by a cable tie.

[0062] In some embodiments, the battery device can be a battery pack, and the battery pack includes a box body and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the box body.

[0063] As an example, the battery cell assembly can be a battery module, and the battery cell assembly is accommodated in the box body by fixing the battery module in the box body.

[0064] As an example, the battery cell assembly can also be accommodated in the box body by directly fixing a plurality of battery cells in the box body.

[0065] Embodiments of the present application provide a power consumption device with the battery device 100, i.e., a power consumption device using the battery device 100 as a power supply.

[0066] The technical solutions described in the embodiments of the present application are applicable to various power consumption devices using the battery device 100, and the power consumption device can be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, and an electric tool, etc. The vehicle can be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile, or a range extended automobile, etc. The spacecraft includes an airplane, a rocket, a space shuttle, a spacecraft, etc. The electric toy includes a fixed or mobile electric toy, such as a game console, an electric automobile toy, an electric ship toy, and an electric airplane toy, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembling electric tool, and a railway electric tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator, and an electric planer, etc. The embodiments of the present application do not specially limit the above power consumption devices.

[0067] The battery device 100 disclosed in the present application can be used in a power consumption device such as a vehicle, a ship, or an aircraft, but is not limited thereto. The power consumption device can use a power supply system with the battery device 100 disclosed in the present application, which is beneficial to improve the use reliability of the power consumption device.

[0068] In the following embodiments, the power consumption device provided by the embodiments of the present application is taken as a vehicle 1000 for example for convenience of description.

[0069] Please refer to Figure 1 , Figure 1A structural schematic diagram of a vehicle 1000 is provided for some embodiments of the present application. The vehicle 1000 can be a fuel automobile, a gas automobile, or a new energy automobile, which can be a pure electric vehicle, a hybrid electric vehicle, or a range extended electric vehicle, etc. The vehicle 1000 is internally provided with a battery device 100, which can be arranged at the bottom, head or tail of the vehicle 1000. The battery device 100 can be used for power supply of the vehicle 1000, for example, the battery device 100 can be used as an operating power supply of the vehicle 1000. The vehicle 1000 can further 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, for the working power demand of the vehicle 1000 during starting, navigation and driving.

[0070] In some embodiments of the present application, the battery device 100 can not only be used as an operating power supply of the vehicle 1000, but also be used as a driving power supply of the vehicle 1000, instead of or partially instead of fuel or natural gas to provide driving power for the vehicle 1000.

[0071] As Figure 2 The battery device 100 provided by the embodiments of the present application, the battery cell 11 of the battery device 100 is an energy storage component, which can perform charge and discharge reactions, at least one battery cell 11 forms a battery cell assembly, and is arranged in the form of a battery cell assembly in the box body 10, and the stability of the fixed battery cell assembly needs to be ensured.

[0072] The vehicle 1000 is powered by a drive motor, and the drive motor needs the battery device 100 to provide the required power, and the battery device 100 simultaneously supplies power to the electrical load on the vehicle 1000. Among them, the high-voltage power distribution unit is an energy distribution unit for the battery device 100 to distribute energy to the electrical load such as the drive motor, which plays an irreplaceable important role in the whole vehicle 1000. The high-voltage power distribution unit includes electrical components 13 and circuit boards 12 and other devices.

[0073] The electrical components of the high-voltage power distribution unit in the related art are arranged on the circuit board. During the driving of the vehicle, the electrical components vibrate and shake relative to the circuit board due to driving, which reduces the firmness of the connection between the two.

[0074] Based on this, the present application provides a battery device 100, which aims to reduce the relative vibration between the electrical components 13 and the circuit board 12, and improve the firmness between the electrical components 13 and the circuit board 12.

[0075] Please refer to Figures 2-9 The present application provides a battery device 100, which includes a box body 10, a battery cell 11, and a high-voltage power distribution unit.

[0076] The battery cell 11 is arranged in the box body 10; the high-voltage power distribution unit is used for distributing the electric energy of the battery cell 11, and the high-voltage power distribution unit comprises a mounting seat 14, a limiting piece 18, a circuit board 12 fixed on the mounting seat 14, and an electrical component 13 arranged on the circuit board 12, the mounting seat 14 has a limiting cavity 15, and at least part of the structure of at least part of the electrical component 13 is located in the limiting cavity 15; the limiting piece 18 is arranged in the limiting cavity 15 and located between the electrical component 13 and the inner wall of the limiting cavity 15, and the limiting piece 18 is used for limiting the electrical component 13.

[0077] Specifically, the battery device 100 of the embodiment comprises a plurality of battery cells 11, which can exist in the form of a battery cell assembly, the box body 10 has a containing cavity, the battery cell 11 can be arranged in the containing cavity of the box body 10, and the plurality of battery cells 11 are connected with each other in parallel or in series to output or store electric energy.

[0078] The electric energy of the battery cell 11 needs to be reasonably distributed, and the embodiment provides a high-voltage power distribution unit, which can reasonably distribute the electric energy of the battery cell 11 to the equipment needing power, such as a driving motor, an electric air conditioner compressor, a PTC heater, a DC / DC high-voltage electrical equipment, etc. The high-voltage power distribution unit comprises a mounting seat 14, a circuit board 12 arranged on the mounting seat 14, and an electrical component 13 arranged on the circuit board 12.

[0079] The high-voltage power distribution unit can comprise a high-voltage box, the high-voltage box is a box body with a box cavity, the mounting seat 14 can be located at the box bottom of the box body, or the mounting seat 14 can be part of the box body of the high-voltage box, and the mounting seat 14 can be directly used as the box bottom, so that the circuit board 12 and the electrical component 13 on the circuit board 12 are located in the box body.

[0080] The circuit board 12 can be a battery management unit, the circuit board 12 can be fixedly arranged on the mounting seat 14, and the electrical component 13 is arranged on the circuit board 12, that is, the electrical component 13 is arranged on the circuit board 12 and is electrically connected with the circuit board 12, such as the relay 17 arranged on the circuit board 12, the relay 17 has a large volume, and the relay 17 is fixedly connected with the circuit board 12 at one end. In the related art, the electrical component such as the relay is only fixed with the circuit board and is not connected or contacted with other structures. When the battery device is arranged on the vehicle, the circuit board vibrates with the running and bumping of the vehicle, and the electrical component is prone to relative shaking with the circuit board, thereby causing loosening of the connection. Therefore, the mounting seat 14 is provided in the embodiment, the circuit board 12 is fixed on the mounting seat 14, the electrical component 13 is connected on the circuit board 12, the mounting seat 14 is provided with the limiting cavity 15, the limiting cavity 15 has a certain volume and can accommodate the electrical component 13, for example, the relay 17 arranged on the circuit board 12, one end of the relay 17 is fixed on the circuit board 12, and the other end of the relay 17 can be located in the limiting cavity 15 of the mounting seat 14, and the limiting part 18 is further arranged in the limiting cavity 15, the limiting part 18 is arranged between the electrical component 13 and the inner wall of the limiting cavity 15, so that the position of the electrical component 13 is limited to a certain extent, thereby reducing the relative shaking between the electrical component 13 and the circuit board 12, preventing the electrical component 13 from vibrating relative to the circuit board 12 in a large amplitude, and playing a buffering role.

[0081] The technical scheme of the embodiment makes the electrical component 13 arranged in the limiting cavity 15 in addition to being arranged on the circuit board 12, the limiting cavity 15 plays a certain protection role on the electrical component 13, and the limiting part 18 is further arranged between the electrical component 13 and the inner wall of the limiting cavity 15, so that when the electrical component 13 vibrates or shakes relative to the circuit board 12, the amplitude of the relative vibration or shaking can be reduced under the action of the limiting part 18, the structure of the limiting part 18 is simpler and more flexible, can be arranged in a matched form according to the structure of the electrical component 13, and a suitable mounting position is selected in the limiting cavity 15, so that the limiting effect is increased.

[0082] In some embodiments, the limiting part 18 is an elastic limiting part.

[0083] Specifically, when the electrical component 13 shakes relative to the circuit board 12, the limiting member 18 can be touched, the limiting member 18 limits the electrical component 13 to reduce the vibration amplitude, and the limiting member 18 is an elastic limiting part, which can be made of a plastic material with elasticity, that is, it has a certain vibration buffer. When the electrical component 13 is limited to a certain extent, hard collision between the electrical component 13 and the limiting member 18 is avoided, and the electrical component 13 is effectively protected. The limiting member 18 can be made of the same material as the mounting seat 14 and can be integrally injection molded with the mounting seat 14 to form an integrated structure.

[0084] In some embodiments, referring to Figures 5-9 , the limiting member 18 includes two first plates 181 arranged opposite and spaced apart, and a second plate 182 connected to the same side end of the two first plates 181, and the electrical component 13 is arranged between the two first plates 181.

[0085] Specifically, the two first plates 181 are the same structure and are arranged opposite to each other. The two first plates 181 can be arranged adjacent to the two opposite inner walls inside the limiting cavity 15, respectively, and the second plate 182 is connected to the same side end of the two first plates 181. The three form a U-shaped structure for accommodating the electrical component 13. The limiting member 18 is connected in the limiting cavity 15 of the mounting seat 14. When the electrical component 13 enters the limiting cavity 15, the three plates form a surrounding form around the electrical component 13. When the electrical component 13 shakes relative to the circuit board 12, the three plates can limit the electrical component 13. The two first plates 181 can be located on the two opposite sides of the electrical component 13 to limit the electrical component 13, and the second plate 182 limits the insertion end of the electrical component 13. The connecting direction of the two first plates 181 can be the direction in which the electrical component 13 has a larger vibration amplitude, which can be the direction of gravity.

[0086] The effect of the embodiment is that the limiting member 18 adopts a form of three plates connected to each other and surrounding the electrical component 13, which is simple in structure and easy to operate, and better plays a limiting role on the electrical component 13.

[0087] In some embodiments, referring to Figures 5-9 , the limiting cavity 15 has a cavity opening and a bottom wall 19 arranged opposite to the cavity opening. The second plate 182 is arranged opposite to the bottom wall 19 and has a gap therebetween. The end of the first plate 181 away from the second plate 182 is connected to the side wall 20 between the cavity opening and the bottom wall 19.

[0088] Specifically, the limiting cavity 15 can be a cuboid-shaped cavity, one side of which is open to form a cavity opening for the electrical component 13 to enter, and the opposite side is the bottom wall 19 of the limiting cavity 15. The second plate member 182 is located at the bottom wall 19 and is arranged opposite to the bottom wall 19, and a gap is formed between the second plate member 182 and the bottom wall 19, and the two first plate members 181 are respectively located at the two opposite side walls 20 in the limiting cavity 15 and are respectively connected to the two side walls 20 to realize the positioning of the limiting member 18. Specifically, one end of the first plate member 181 away from the second plate member 182 is connected to the side wall 20.

[0089] The effect of the embodiment is that the second plate member 182 is located at the bottom wall 19 and can contact the end face of the electrical component 13 that first enters the limiting cavity 15, and the two first plate members 181 are arranged opposite to each other and are respectively located at the side walls 20, and can contact the two opposite sides of the electrical component 13, thereby forming a clamping on the electrical component 13, which can effectively reduce the vibration of the electrical component 13. When the limiting member 18 is an elastic limiting part, in order to increase the elastic displacement amount of the limiting member 18, a gap is further provided between the second plate member 182 and the bottom wall 19, and the first plate member 181 is connected to the side wall 20 through one end away from the second plate member 182, which can increase the elastic displacement amount of the limiting member 18 and reduce the hard collision between the electrical component 13 and the limiting member 18.

[0090] In some embodiments, referring to Figures 5-9 , the first plate member 181 includes a first plate segment 1811 and a second plate segment 1812, one end of the second plate segment 1812 is connected to the second plate member 182, the first plate segment 1811 is connected to one end of the second plate segment 1812 away from the second plate member 182, and the distance between the first plate segments 1811 of the two first plate members 181 gradually increases from the second plate segment 1812 to the direction of the cavity opening.

[0091] Specifically, the first plate member 181 includes two parts, namely the first plate segment 1811 and the second plate segment 1812, and an included angle can be formed between the first plate segment 1811 and the second plate segment 1812, and the included angle is less than 180 degrees, that is, the two parts are not in the same plane, but have an included angle. The second plate segment 1812 can be arranged at equal intervals with the side wall 20, and the first plate segment 1811 can be inclined relative to the second plate segment 1812, so that one end of the first plate segment 1811 away from the second plate segment 1812 is connected to the side wall 20, and the distance between the first plate segments 1811 of the two first plate members 181 gradually increases from the second plate segment 1812 to the direction of the cavity opening, which is conducive to the entry of the electrical component 13 and plays a guiding role.

[0092] The effect of the embodiment is that the first plate segment 1811 plays a guiding role and facilitates the entry of the electrical component 13.

[0093] In some embodiments, referring to Figures 5-9 , the second plate segment 1812 has a gap with the side wall 20, and the first plate segment 1811 is connected to the side wall 20 at one end away from the second plate segment 1812, and is connected to the second plate segment 1812 at the other end.

[0094] Specifically, the embodiment forms a gap between the second plate segment 1812 and the side wall 20, and when the limiting member 18 is an elastic limiting part made of an elastic material, the movable amount of the limiting member 18 is increased, which is conducive to the elastic buffering effect of the second plate segment 1812.

[0095] In some embodiments, referring to Figures 5-9 , the bottom wall 19 is provided with a protruding part 21, the surface of the protruding part 21 facing the second plate member 182 is an arc surface, the second plate member 182 is provided with a recessed part 22, the protruding part 21 is at least partially located in the recessed part 22, and the recessed part 22 has an inner concave surface that is adapted to the arc surface.

[0096] Specifically, the protruding part 21 is on the surface of the bottom wall 19 inside the limiting cavity 15, faces the second plate member 182, and has an arc surface, which can be a spherical surface. Correspondingly, the recessed part 22 is provided on the side of the second plate member 182 facing the bottom wall 19, can be used to accommodate at least part of the protruding part 21, and has an inner concave surface that is adapted to the arc surface. The protruding part 21 can partially enter the recessed part 22, so that part of the arc surface is in contact with the inner concave surface.

[0097] The effect of the embodiment is that the protruding part 21 enters the recessed part 22, so that the second plate member 182 forms a support, which limits the position of the second plate member 182 to a certain extent, prevents the second plate member 182 from deviating too much, and makes the second plate member 182 be in a reasonable position and in contact with the insertion end of the electrical member 13. At the same time, this support is not locked, and when the limiting member 18 is an elastic limiting part made of an elastic material, the inner concave surface and the arc surface are adapted to each other, so that they can slide relative to each other, which increases the elastic displacement amount of the second plate member 182, is conducive to the buffering effect, and the first plate member 181 is connected to the second plate member 182. When the second plate member 182 has a certain displacement amount, the first plate member 181 is not too limited, and also has a certain elastic displacement amount, which increases the overall buffering effect.

[0098] In some embodiments, referring to Figures 5-9 , the opposite surfaces of the two first plate members 181 are respectively provided with elastic sheets 23, one end of the elastic sheet 23 close to the cavity opening is connected to the first plate member 181, and the other end is a free end. The elastic sheet 23 is used to abut against the electrical member 13.

[0099] Specifically, when the electrical component 13 enters into the limiting cavity 15, the electrical component 13 is positioned between the two first plates 181, and the first plates 181 limit the electrical component 13 from two sides respectively. In order to increase the limiting effect, the elastic pieces 23 are arranged on the first plates 181. When the electrical component 13 enters, the side of the electrical component 13 can press the elastic pieces 23 on two sides respectively, so that the elastic pieces 23 form a pressing force on the electrical component 13. The end of the elastic piece 23 close to the cavity opening is connected to the first plate 181, and the other end is a free end, so as not to affect the entering of the electrical component 13, and the greater the pressing degree of the elastic piece 23, the better the force on the electrical component 13.

[0100] The effect of the embodiment is that the elastic piece 23 is arranged to keep the force between the first plate 181 and the electrical component 13, which can increase the limiting effect on the electrical component 13 and also play a buffering role.

[0101] In some embodiments, referring to Figures 5-9 , the side surface of the second plate 182 close to the cavity opening is provided with a groove 24, and the shape of the groove 24 is matched with the shape of the insertion end of the electrical component 13 inserted into the limiting cavity 15, and the insertion end of the electrical component 13 is located in the groove 24.

[0102] Specifically, the electrical component 13 is not simply in contact with the surface of the second plate 182, but the groove 24 is arranged on the second plate 182, the groove 24 is matched with the insertion end of the electrical component 13, and the electrical component 13 can enter the groove 24 when inserted, so that the groove 24 limits the electrical component 13, increases the limiting effect, and reduces the vibration of the electrical component 13. When the electrical component 13 is a relay 17, the insertion end surface is a rectangular surface, and the groove 24 can be arranged as a rectangular shallow groove.

[0103] In some embodiments, referring to Figures 5-9 , the two first plates 181 are respectively located on the upper side and the lower side of the electrical component 13 along the gravity direction.

[0104] Specifically, when the electrical component 13 enters into the limiting cavity 15, the two first plates 181 are respectively located on the upper side and the lower side of the electrical component 13 along the gravity direction.

[0105] Specifically, when the circuit board 12 is vertically arranged and the electrical component 13 is arranged on the vertical surface of the circuit board 12, the electrical component 13 is connected to the circuit board 12 in the form of a cantilever, at this time, the electrical component 13 is inserted into the limiting cavity 15 in the horizontal direction, that is, at this time, the opening of the limiting cavity 15 is horizontally oriented, in this case, the two first plate members 181 are respectively arranged on the upper side and the lower side of the electrical component 13 in the direction of gravity, so as to reduce the vibration amplitude in the direction of gravity with large amplitude. In order to reduce the occupation of the horizontal space, the circuit board 12 can be vertically arranged, the mounting seat 14 is arranged at the bottom of the high-voltage box, and some other electronic components are also arranged on the mounting seat 14, some of which need to be electrically connected with the circuit board 12, and the vertical surface of the circuit board 12 is arranged to face these electronic components, so as to avoid the case that the circuit board 12 is horizontally arranged and is located at different layers from these electronic components, and to some extent, the electrical connection with these electronic components is also facilitated.

[0106] The effect of the embodiment is that the two first plate members 181 are arranged on the upper side and the lower side of the electrical component 13, so as to reduce the vibration amplitude of the electrical component 13 in the direction of gravity.

[0107] In some embodiments, the electrical component 13 further includes an electrical body and an electrical connection part, the electrical connection part is used to electrically connect the circuit board 12 with the electrical body, and the electrical body is fixedly connected with the circuit board 12.

[0108] Specifically, the electrical component 13 arranged on the circuit board 12 can include mechanical connection and electrical connection, the electrical body is electrically connected with the circuit board 12 through the electrical connection part, for example, the relay 17 can be electrically connected with the circuit board 12 through the connecting piece, the connecting piece can be a pin, and the connecting piece is the electrical connection part, when the structural strength of the connecting piece is large, the connecting piece can also be used as a mechanical connection part. The electrical component 13 of the embodiment realizes the mechanical connection and the electrical connection with the circuit board 12.

[0109] In some embodiments, the electrical body is bonded with the circuit board 12.

[0110] Bonding is a kind of efficient and simple mechanical connection mode, the electrical body and the circuit board 12 are bonded with each other, so as to increase the convenience and firmness of the connection.

[0111] In some embodiments, the high-voltage power distribution unit further includes a bonding member, the bonding member is used to bond the electrical body with the circuit board 12 and is arranged around the electrical body.

[0112] The electrical main body and the circuit board 12 are bonded by the form of the bonding member in the embodiment, the bonding member can be a glue, a part of the glue contacts the electrical main body, and the other part contacts the circuit board 12, the two can be firmly bonded, and the setting mode of the bonding member in the embodiment is to be arranged around the electrical main body, the omnibearing connection in the circumferential direction is realized, and the firmness of the connection is increased.

[0113] The application also provides a battery device 100.

[0114] The stability of the use of the battery device is increased.

[0115] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application, and they should be covered in the scope of the claims and the specification of the application. Especially, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized by, The battery device comprises: a box body; a battery cell arranged in the box body; and a high-voltage power distribution unit for distributing electric energy of the battery cell, the high-voltage power distribution unit comprising a mounting seat, a limiting member, a circuit board fixedly arranged on the mounting seat, and an electrical component arranged on the circuit board, the mounting seat having a limiting cavity, at least part of a structure of at least part of the electrical component being arranged in the limiting cavity, the limiting member being arranged in the limiting cavity and between the electrical component and an inner wall of the limiting cavity, the limiting member being used for limiting the electrical component. The limiting member is an elastic limiting part.

2. The battery device of claim 1, wherein The limiting member comprises two first plate members arranged oppositely and spaced apart, and a second plate member connected to the same side ends of the two first plate members, and the electrical component is arranged between the two first plate members.

3. The battery device of claim 1, wherein The limiting cavity has a cavity opening and a bottom wall arranged oppositely to the cavity opening, the second plate member is arranged oppositely to the bottom wall and has a gap therebetween, and an end of the first plate member away from the second plate member is connected to a side wall between the cavity opening and the bottom wall.

4. The battery device of claim 3, wherein The first plate member comprises a first plate segment and a second plate segment, one end of the second plate segment is connected to the second plate member, the first plate segment is connected to an end of the second plate segment away from the second plate member, and the distance between the first plate segments of the two first plate members gradually increases from the second plate segment to the cavity opening.

5. The battery device of claim 4, wherein There is a gap between the second plate segment and the side wall, an end of the first plate segment away from the second plate segment is connected to the side wall, and the other end of the first plate segment is connected to the second plate segment.

6. The battery device of claim 5, wherein The bottom wall is provided with a protruding part, a surface of the protruding part facing the second plate member is an arc surface, the second plate member is provided with a recessed part, the protruding part is at least partially located in the recessed part, and the recessed part has an inner concave surface matching the arc surface.

7. The battery device of claim 4, wherein Resilient pieces are respectively arranged on opposite surfaces of the two first plate members, one end of the resilient piece close to the cavity opening is connected to the first plate member, and the other end is a free end, and the resilient piece is used for abutting against the electrical component.

8. The battery device of claim 4, wherein A recess is arranged on a side plate surface of the second plate member facing the cavity opening, the recess is shaped to match the shape of an insertion end of the electrical component inserted into the limiting cavity, and the insertion end of the electrical component is located in the recess.

9. The battery device of claim 4, wherein The two first plate members are respectively located on the upper side and the lower side of the electrical component along the direction of gravity.

10. The battery device of claim 4, wherein The electrical component further comprises an electrical main body and an electrical connection part, the electrical connection part is used for electrically connecting the circuit board and the electrical main body, and the electrical main body is fixedly connected to the circuit board.

11. The battery device of any one of claims 1-10, wherein, The electrical main body is bonded to the circuit board.

12. The battery device of claim 11, wherein, The high-voltage power distribution unit further comprises a bonding member, the bonding member is used for bonding the electrical main body and the circuit board and is annularly arranged around the electrical main body.

13. The battery device of claim 12, wherein, The battery device comprises any one of claims 1-13.

14. An electrical device, comprising: The battery device comprises any one of claims 1-13.

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