CN220189814U

CN220189814U - High-voltage box, battery and electric equipment

Info

Publication number: CN220189814U
Application number: CN202321706386.9U
Authority: CN
Inventors: 高海兴
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-12-15
Anticipated expiration: 2033-06-30

Abstract

The embodiment of the utility model provides a high-voltage box, a battery and electric equipment. The high-pressure cartridge includes a cartridge body and a sealing portion. The box body comprises a box bottom wall; the sealing part comprises a sealing part body and a sealing piece, wherein the sealing part body is arranged on the bottom wall of the box and is provided with a groove; the part of the sealing piece is embedded in the groove, and the part of the sealing piece extends out of the groove. The technical scheme provided by the embodiment of the utility model can improve the reliability of the battery.

Description

High-voltage box, battery and electric equipment

Technical Field

The utility model relates to the technical field of batteries, in particular to a high-voltage box, a battery and electric equipment.

Background

Energy conservation and emission reduction are key to sustainable development of the automobile industry, and electric vehicles become an important component of sustainable development of the automobile industry due to the energy conservation and environmental protection advantages of the electric vehicles. For electric vehicles, battery technology is an important factor in the development of the electric vehicles.

The reliability of the battery is a non-negligible problem in the manufacturing process of the battery. Therefore, how to improve the reliability of the battery is a technical problem to be solved in the battery technology.

Disclosure of Invention

The utility model provides a high-voltage box, a battery and electric equipment, which can improve the reliability of the battery.

The application is realized by the following technical scheme:

in a first aspect, an embodiment of the present application provides a high-pressure cartridge including a cartridge body and a seal portion. The box body comprises a box bottom wall; the sealing part comprises a sealing part body and a sealing piece, wherein the sealing part body is arranged on the bottom wall of the box and is provided with a groove; the part of the sealing piece is embedded in the groove, and the part of the sealing piece extends out of the groove.

According to the high-voltage box provided by the embodiment of the application, the sealing part body is arranged towards the to-be-installed part, and the sealing part is configured to be in sealing connection with the installation surface of the to-be-installed part after being connected with the to-be-installed part, so that the risk that liquid such as condensed water enters the box body from the sealing part is reduced, and when the high-voltage box is applied to a battery, the reliability of the battery can be improved.

According to some embodiments of the application, the seal is provided along an edge of the bottom wall of the cartridge.

In the above scheme, the sealing part is arranged along the edge of the bottom wall of the box, and can form sealing at the edge of the bottom wall of the box when the high-pressure box is assembled with a to-be-installed part, so that the sealing part has a large sealing range, and the probability that liquid such as condensed water enters the box body can be effectively reduced.

According to some embodiments of the application, the first chamber is provided in the case body, the case bottom wall is provided with a mounting hole communicating with the first chamber, the sealing portion is configured in a ring shape, and an orthographic projection of the sealing portion on the case bottom wall surrounds the mounting hole.

In the scheme, the sealing part is arranged around the mounting hole, after the high-voltage box is assembled with the to-be-mounted piece, the sealing piece is in sealing connection with the mounting surface of the to-be-mounted piece, so that the risk of short circuit caused by contact between condensed water or other liquid flowing to the mounting hole and the electrical piece in the mounting hole can be reduced, and the battery has higher reliability.

According to some embodiments of the application, the seal is an elastic member.

In the above scheme, the sealing element is an elastic element so as to increase the sealing area between the sealing element and the element to be installed through the elastic deformation of the sealing element, thereby improving the sealing effect of the sealing element and the element to be installed.

According to some embodiments of the application, the cartridge bottom wall comprises a first surface facing away from the interior of the cartridge body, the seal body protruding from the first surface and being disposed along an edge of the first surface.

In the above-mentioned scheme, sealing body protrusion just sets up along the edge of first surface in first surface for have the clearance between first surface and the piece of waiting to install, on the one hand be convenient for install the sealing member, on the other hand, can reduce the risk that liquid such as comdenstion water contacted with the electrical component in the box body.

According to some embodiments of the application, the first surface is provided with a reinforcement.

In the scheme, through setting up the enhancement portion, can increase the intensity of box diapire, be convenient for support the location to setting up the electrical components in the box body.

According to some embodiments of the application, the cartridge body comprises a first portion having an opening and a second portion closing the opening, the second portion and the first portion enclosing a receiving space for receiving the electrical component, the first portion being provided with a sealing portion.

In the scheme, the first part and the second part are arranged in a split mode, so that the electric parts can be conveniently placed in the accommodating space, and the electric parts can be conveniently maintained and replaced.

According to some embodiments of the application, the first portion is detachably connected to the second portion.

In the scheme, the first part is detachably connected with the second part, so that the first part and the second part are convenient to assemble and disassemble, and parts in the high-pressure box are convenient to replace and repair.

In a second aspect, an embodiment of the present application further provides a battery, where the battery includes a case and the high-voltage box provided in any one of the foregoing embodiments, and the case includes a bottom wall, and the sealing member is connected with the bottom wall in a sealing manner.

According to the battery provided by the embodiment of the application, the sealing part is arranged between the bottom wall and the bottom wall of the case, and the sealing piece is in sealing connection with the bottom wall of the case, so that the area between the bottom wall of the case and the bottom wall of the case is sealed and isolated from the external area through the sealing part, the probability that condensed water or other liquid enters the inside of the case body through the area between the bottom wall of the case and the bottom wall of the case is reduced, the risk of short circuit caused by contact of the condensed water or other liquid with electric parts in the case body is reduced, and the battery has higher reliability.

In the scheme, the sealing part is arranged around the mounting hole, and because the sealing piece is in sealing connection with the tank bottom wall, the probability that condensed water or other liquid flows to the position of the tank bottom wall corresponding to the mounting hole after passing through the sealing piece can be prevented, and the risk of short circuit caused by contact of the condensed water or other liquid with an electric part in the mounting hole can be reduced, so that the battery has higher reliability.

According to some embodiments of the application, there is a gap between the bottom wall of the case and the bottom wall of the case in a thickness direction of the bottom wall of the case, and the sealing portion defining a second chamber communicating with the mounting hole, the sealing portion being provided between the bottom wall of the case and the bottom wall of the case to seal the second chamber.

In the above-mentioned scheme, have the clearance between box diapire and the bottom wall, the sealing portion sets up between box diapire and bottom wall and sealed second cavity, on the one hand, can reduce the risk that sets up the electrical component in the box body and comdenstion water or other liquid contact short circuits, on the other hand, second cavity and first cavity intercommunication, the heat that electrical component produced in the first cavity can distribute to the second cavity, the ambient temperature in the first cavity of being convenient for reduce.

According to some embodiments of the application, the battery further comprises a plurality of electrical components disposed in the first chamber, at least some of the plurality of electrical components being disposed in correspondence with the mounting holes, at least some of the plurality of electrical components being connected to the bottom wall of the case.

In the scheme, at least part of the electric components and the mounting holes are correspondingly arranged, so that at least part of the electric components are connected with the bottom wall of the box, and heat generated by the electric components can be transferred to the bottom wall of the box, so that the heat of the electric components is reduced.

According to some embodiments of the application, the tank bottom wall comprises a bottom wall body and a thermal management component disposed between the bottom wall body and the high pressure tank, at least a portion of the electrical component being connected to the thermal management component.

In the above-described aspect, the thermal management component is capable of adjusting the temperature of the electrical component so as to reduce the temperature of the electrical component.

According to some embodiments of the application, at least part of the electrical component is connected to the thermal management component via a thermally conductive member.

In the scheme, the electric component is connected with the thermal management component through the heat conduction component, so that heat of the electric component is transferred to the thermal management component, the heat dissipation efficiency is improved, and the electric component is convenient to cool.

According to some embodiments of the application, the cartridge body further comprises a cartridge sidewall disposed around the periphery of the cartridge bottom wall, one end of the cartridge sidewall being connected to the cartridge bottom wall, the battery further comprising a connector disposed at the cartridge bottom wall, the cartridge sidewall being connected to the connector.

In the scheme, the box body is connected to the bottom wall of the box through the connecting piece so as to realize positioning connection of the high-voltage box.

According to some embodiments of the application, the peripheral wall of the side wall of the case is provided with a first fixing portion and the connecting member is provided with a second fixing portion, the first fixing portion and the second fixing portion being locked by a locking member so as to sealingly connect the sealing member with the bottom wall of the case.

In the scheme, the first fixing part and the second fixing part are locked through the locking part, so that the high-pressure box can be positioned, the risk of moving the high-pressure box in the box body is reduced, meanwhile, the sealing part is convenient to be in sealing connection with the bottom wall of the box, and the sealing stability is improved.

According to some embodiments of the application, the first fixing portion is provided with a first connecting hole, the second fixing portion is provided with a second connecting hole, and the locking member is arranged through the first connecting hole and the second connecting hole and is in threaded connection with the connecting member.

In the scheme, the locking piece is arranged in the first connecting hole and the second connecting hole in a penetrating mode and is in threaded connection with the connecting piece, so that the locking piece is convenient to assemble and disassemble, and convenient to operate.

In a third aspect, an embodiment of the present application further provides an electric device, including a battery provided in any one of the embodiments above.

The battery is used for providing electric energy for the electric equipment.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the present application;

fig. 2 is a schematic view illustrating an exploded structure of a battery according to some embodiments of the present application;

FIG. 3 is a schematic diagram of an exploded view of a high pressure cartridge according to some embodiments of the present application;

FIG. 4 is a cross-sectional view of a high pressure cassette provided by some embodiments of the present application;

fig. 5 is a schematic structural view of a battery according to some embodiments of the present application;

FIG. 6 is a cross-sectional view of a high pressure cartridge and bottom wall assembly provided in accordance with some embodiments of the present application;

Fig. 7 is a cross-sectional view of a portion of the structure of a battery provided in some embodiments of the application;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

fig. 9 is a partial enlarged view at B of fig. 8.

Icon: 100-cell; 10-a box body; 11-a first sub-tank; 12-a second sub-tank; 13-a bottom wall of the tank; 131-a bottom wall body; 132—thermal management components; 20-battery cells; 30-a high pressure cassette; 301-a box body; 31-a bottom wall of the box; 311-mounting holes; 312-a first surface; 313-a second surface; 314-reinforcement; 315—a first fixing portion; 316—first connection holes; 32-a first chamber; 33-a second chamber; 34-a first part; 35-a second part; 36-box side walls; 40-sealing part; 41-a seal body; 411-groove; 42-a seal; 50-electrical parts; 60-a heat conducting member; 71-connecting piece; 711-a second fixing portion; 712-second connection holes; 72-locking piece; 200-a controller; 300-motor; 1000-vehicle.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the described embodiments of the application may be combined with other embodiments.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The term "and/or" in the present application is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present application, the character "/" generally indicates that the front and rear related objects are an or relationship.

The term "plurality" as used herein means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In some embodiments, the battery may be a battery module, and when there are a plurality of battery cells, the plurality of battery cells are arranged and fixed to form one battery module.

In some embodiments, the battery may be a battery pack including a case and a battery cell, the battery cell or battery module being housed in the case.

In some embodiments, the tank may be part of the chassis structure of the vehicle. For example, a portion of the tank may become at least a portion of the floor of the vehicle, or a portion of the tank may become at least a portion of the cross member and the side member of the vehicle.

In some embodiments, the battery may be an energy storage device. The energy storage device comprises an energy storage container, an energy storage electric cabinet and the like.

In the embodiment of the application, the battery cell can be a secondary battery, and the secondary battery refers to a battery cell which can activate the active material in a charging mode to continue to use after the battery cell discharges.

The battery cell may be, but is not limited to, a lithium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead storage battery, and the like.

The battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge of the battery cell, active ions (e.g., lithium ions) are inserted and extracted back and forth between the positive electrode and the negative electrode. The separator is arranged between the positive electrode and the negative electrode, can play a role in preventing the positive electrode and the negative electrode from being short-circuited, and can enable active ions to pass through.

In some embodiments, the positive electrode may be a positive electrode sheet, which may include a positive electrode current collector and a positive electrode active material disposed on at least one surface of the positive electrode current collector.

As an example, the positive electrode current collector has two surfaces opposing in its own thickness direction, and the positive electrode active material is provided on either or both of the two surfaces opposing the positive electrode current collector.

As an example, the positive electrode current collector may employ a metal foil or a composite current collector. For example, as the metal foil, surface-silver-treated aluminum, surface-silver-treated stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel, titanium, or the like can be used. The composite current collector may include a polymeric material base layer and a metal layer. The composite current collector may be formed by forming a metal material (aluminum, aluminum alloy, nickel alloy, titanium alloy, silver alloy, etc.) on a polymer material substrate (e.g., a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

As an example, the positive electrode active material may include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides, and their respective modified compounds. However, the present application is not limited to these materials, and other conventional materials that can be used as a battery positive electrode active material may be used.

In some embodiments, the negative electrode may be a negative electrode tab, which may include a negative electrode current collector.

As an example, the negative electrode current collector may employ a metal foil or a composite current collector. For example, as the metal foil, surface-silver-treated aluminum, surface-silver-treated stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel, titanium, or the like can be used.

In some embodiments, the anode current collector has two surfaces opposing in a thickness direction thereof, and the anode active material is provided on either or both of the two surfaces opposing the anode current collector.

As an example, a negative electrode active material for a battery known in the art may be used. As an example, the anode active material may include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, lithium titanate, and the like. The silicon-based material may be at least one selected from elemental silicon, silicon oxygen compounds, silicon carbon composites, silicon nitrogen composites, and silicon alloys. The tin-based material may be at least one selected from elemental tin, tin oxide, and tin alloys. However, the present application is not limited to these materials, and other conventional materials that can be used as a battery anode active material may be used. These negative electrode active materials may be used alone or in combination of two or more.

In some embodiments, the separator is a separator film. The type of the separator is not particularly limited, and any known porous separator having good chemical stability and mechanical stability can be used.

As an example, the main material of the separator may be at least one selected from glass fiber, non-woven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramic. The separator may be a single-layer film or a multilayer composite film, and is not particularly limited. When the separator is a multilayer composite film, the materials of the respective layers may be the same or different, and are not particularly limited. The separator may be a single member located between the positive and negative electrodes, or may be attached to the surfaces of the positive and negative electrodes.

In some embodiments, the separator is a solid state electrolyte. The solid electrolyte is arranged between the anode and the cathode and plays roles in transmitting ions and isolating the anode and the cathode.

In some embodiments, the electrode assembly is a rolled structure. The positive plate and the negative plate are wound into a winding structure.

In some embodiments, the electrode assembly is a lamination stack.

In some embodiments, the battery cell may include a housing. The case is used to encapsulate the electrode assembly, the electrolyte, and the like. The shell can be a steel shell, an aluminum shell, a plastic shell (such as polypropylene), a composite metal shell (such as a copper-aluminum composite shell), an aluminum-plastic film or the like.

In some embodiments, the case includes an end cap and a case, the case is provided with an opening, and the end cap closes the opening to form a closed space for accommodating the electrode assembly, electrolyte, and the like. The housing may be provided with one or more openings. One or more end caps may also be provided.

In some embodiments, at least one electrode terminal is provided on the case, and the electrode terminal is electrically connected with the tab of the electrode assembly. The electrode terminal may be directly connected to the tab, or may be indirectly connected to the tab through the adapter. The electrode terminal may be provided on the terminal cover or may be provided on the case.

In some embodiments, an explosion proof valve is provided on the housing. The explosion-proof valve is used for discharging the internal pressure of the battery cell.

As an example, the battery cell may be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or other shaped battery cell, and the prismatic battery cell includes a square-case battery cell, a blade-shaped battery cell, a polygonal-prismatic battery cell, such as a hexagonal-prismatic battery cell, etc., and embodiments of the present application are not particularly limited.

The development of battery technology is taking into consideration various design factors such as energy density, discharge capacity, charge-discharge rate and other performance parameters, and the reliability of the battery.

The battery comprises a box body, a battery monomer and a high-voltage box, wherein the battery monomer and the high-voltage box are arranged in the box body, an electric part is arranged in the high-voltage box and is electrically connected with the battery monomer, and the electric part can comprise, but is not limited to, a connecting member and a relay. The high voltage box is generally provided with through holes for heat dissipation so as to facilitate the dissipation of heat generated by the electrical components within the high voltage box. Currently, in the embodiment in which the high-voltage casing is disposed at the bottom wall of the casing, condensed water or other liquid is liable to accumulate at the bottom wall of the casing during operation of the battery, and condensed water or other liquid is liable to flow into the space between the high-voltage casing and the bottom wall of the casing, which is liable to cause contact between the condensed water or other liquid and the electric parts disposed in the high-voltage casing, resulting in short circuit, which reduces the reliability of the battery.

In view of this, in order to solve the problem that the condensed water or other liquid contacts with the electric component in the high-voltage box to cause short circuit and lower reliability of the battery, the embodiment of the application provides a high-voltage box, which comprises a box body and a sealing part, wherein the sealing part comprises a sealing part body and a sealing part, the sealing part body is provided with a box bottom wall of the box body and is provided with a groove, part of the sealing part is embedded in the groove, part of the sealing part extends out of the groove, and the sealing part is configured to be in sealing connection with a mounting surface of the to-be-mounted component after being assembled with the to-be-mounted component (such as the box bottom wall), so that the probability that the condensed water and other liquid enter the area between the box bottom wall and the to-be-mounted component from the sealing part is reduced, and the risk that the condensed water and other liquid enter the box body is reduced, and when the high-voltage box is applied to the battery, the reliability of the battery can be improved.

In the battery adopting the high-voltage box, the sealing part is arranged between the box bottom wall and the box bottom wall, and can be arranged along the edge of the box bottom wall, the sealing piece can be in sealing connection with the box bottom wall, so that sealing is formed between the box bottom wall and the box bottom wall, the area of the box bottom wall corresponding to the box bottom wall is sealed, the probability that condensed water or other liquid enters the area of the box bottom wall corresponding to the box bottom wall can be reduced, and therefore the risk that the condensed water or other liquid is in contact with an electric component in the high-voltage box to cause short circuit is reduced, so that the battery has higher reliability.

The battery disclosed by the embodiment of the application can be used in electric equipment such as vehicles, ships or aircrafts, but is not limited to the electric equipment. The power supply system of the electric equipment can be composed by using the battery provided with the battery disclosed by the application.

The embodiment of the application provides electric equipment using a battery as a power supply, wherein the electric equipment can be, but is not limited to, a mobile phone, a tablet personal computer, a notebook computer, an electric toy, an electric tool, an electric bicycle, an electric motorcycle, an electric automobile, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

For convenience of description, the following embodiments take a powered device according to an embodiment of the present application as an example of the vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle according to some embodiments of the application. The vehicle 1000 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The battery 100 is provided in the interior of the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. Battery 100 may be used to power vehicle 1000, for example, battery 100 may be used as an operating power source for vehicle 1000, for the circuitry of vehicle 1000, such as for the operational power requirements of vehicle 1000 during start-up, navigation, and operation.

The vehicle 1000 may also include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to power the motor 300, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the present application, battery 100 may not only serve as an operating power source for vehicle 1000, but may also serve as a driving power source for vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for vehicle 1000.

Referring to fig. 2, fig. 2 is an exploded view of a battery according to some embodiments of the present application. The battery 100 includes a case 10 and a battery cell 20, and the battery cell 20 is accommodated in the case 10. The case 10 is used to provide an accommodating space for the battery cell 20, and the case 10 may have various structures. In some embodiments, the case 10 may include a first sub-case 11 and a second sub-case 12, the first sub-case 11 and the second sub-case 12 being covered with each other, the first sub-case 11 and the second sub-case 12 together defining an accommodating space for accommodating the battery cell 20. The second sub-box 12 may have a hollow structure with an opening at one end, the first sub-box 11 may have a plate-shaped structure, and the first sub-box 11 covers the opening side of the second sub-box 12, so that the first sub-box 11 and the second sub-box 12 together define an accommodating space; the first sub-tank 11 and the second sub-tank 12 may be hollow structures each having one side opened, and the opening side of the first sub-tank 11 may be closed to the opening side of the second sub-tank 12.

In the battery 100, the plurality of battery cells 20 may be connected in series, parallel or a series-parallel connection, wherein the series-parallel connection refers to that the plurality of battery cells 20 are connected in series or parallel. The plurality of battery cells 20 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting a plurality of battery cells 20 in series or parallel or series-parallel connection, and a plurality of battery modules are then connected in series or parallel or series-parallel connection to form a whole and are accommodated in the case 10. The battery 100 may further include other structures, for example, the battery 100 may further include a bus member for making electrical connection between the plurality of battery cells 20.

The battery cell 20 may be a secondary battery or a primary battery; the battery cell 20 may also be a lithium sulfur battery, a sodium ion battery, or a magnesium ion battery, but is not limited thereto.

Referring to fig. 3 and fig. 4, fig. 3 is an exploded view of a high-pressure box according to some embodiments of the present application, and fig. 4 is a cross-sectional view of the high-pressure box according to some embodiments of the present application. The embodiment of the present application provides a high-pressure tank 30, the high-pressure tank 30 including a tank body 301 and a sealing portion 40. The cartridge body 301 includes a cartridge bottom wall 31. The seal part 40 includes a seal part body 41 and a seal member 42, the seal part body 41 is provided on the cartridge bottom wall 31, and is provided with a groove 411; a part of the sealing member 42 is embedded in the groove 411, and the part of the sealing member 42 extends out of the groove 411.

The high voltage box 30 is also referred to as a high voltage distribution box, and is a component for housing electrical components, which may include, but are not limited to, relays, fuses, connection members, current sensors, pre-charge resistors.

The cartridge bottom wall 31 is a wall of the cartridge body 301 for fitting with a member to be mounted. The box bottom wall 31 may enclose a space for accommodating electrical components in cooperation with other walls.

The recess 411 is open in a direction away from the interior of the cartridge body 301 so that the seal member 42 is disposed within the recess 411.

When the high-pressure cartridge 30 is assembled with the member to be mounted, the cartridge bottom wall 31 is disposed facing the member to be mounted, and the seal portion 40 is disposed between the cartridge bottom wall 31 and the member to be mounted, that is, the seal portion body 41 is disposed facing the member to be mounted.

In the process of assembling the battery 100, the high-voltage case 30 may be assembled to the bottom wall 13 of the case 10, may be assembled to other parts of the case 10, and may be assembled to other parts of the battery 100. For convenience and description, the embodiment of the present application will be described by taking the bottom wall of the case 10 as the member to be mounted.

A portion of the seal member 42 is embedded in the groove 411 to facilitate positioning of the seal member 42 by the seal portion body 41; a portion of the seal member 42 protrudes out of the recess 411 so that when the high pressure case 30 is assembled with the bottom wall 13, the seal member 42 contacts and connects with the bottom wall 13, thereby forming a sealed connection between the case body 301 and the bottom wall 13.

According to the high-pressure cartridge 30 of the embodiment of the present application, the sealing portion body 41 is provided toward the member to be mounted (the bottom wall 13), the sealing member 42 is configured to be sealingly connected with the mounting surface of the bottom wall 13 after being connected with the bottom wall 13, the probability of liquid such as condensed water entering the region between the cartridge bottom wall 31 and the bottom wall 13 via the sealing member 42 is reduced, and thus the risk of liquid such as condensed water entering the inside of the cartridge body 301 from the sealing member 42 is reduced, and the reliability of the battery 100 can be improved when the high-pressure cartridge 30 is applied to the battery 100.

Referring to fig. 3 and 4, according to some embodiments of the application, a seal 40 is provided along the edge of the cartridge bottom wall 31.

The sealing portion 40 may be annular provided along the edge of the cartridge bottom wall 31, that is, the sealing portion 40 may form a closed annular shape around the edge of the cartridge bottom wall 31.

In the above-mentioned scheme, the sealing portion 40 is disposed along the edge of the bottom wall 31, so that when the high-pressure box 30 is assembled with the bottom wall 13, a seal can be formed at the edge of the bottom wall 31, a large sealing range is provided, and the probability of liquid such as condensed water entering the interior of the box body 301 can be effectively reduced.

Referring to fig. 4, according to some embodiments of the present application, a first chamber 32 is disposed in a cartridge body 301, a mounting hole 311 communicating with the first chamber 32 is disposed on a cartridge bottom wall 31, a sealing portion 40 is configured in a ring shape, and an orthographic projection of the sealing portion 40 on the cartridge bottom wall 31 surrounds the mounting hole 311.

The first chamber 32 is an inner space of the cartridge body 301 for accommodating electrical components.

The mounting hole 311 may be a through hole provided on the cartridge bottom wall 31, and the mounting hole 311 may penetrate the cartridge bottom wall 31 in the thickness direction of the cartridge bottom wall 31 such that the mounting hole 311 communicates with the first chamber 32. During operation, electrical components (e.g., connection members, fuses, etc.) within the cartridge body 301 are prone to generate more heat, thereby causing an increase in temperature within the cartridge body 301. The installation hole 311 can communicate the first chamber 32 with the external environment, and can facilitate the heat generated by the electrical component to be emitted to the outside of the first chamber 32 through the installation hole 311, thereby reducing the environmental temperature in the first chamber 32.

The sealing portion 40 may be annular provided along the edge of the cartridge bottom wall 31, that is, the sealing portion 40 may form a closed annular shape around the edge of the cartridge bottom wall 31. When a plurality of mounting holes 311 are provided on the cartridge bottom wall 31, the seal portion 40 is provided around all the mounting holes 311.

In the above-described arrangement, the sealing part 40 is disposed around the mounting hole 311, and after the high-pressure casing 30 is assembled with the bottom wall 13, the sealing member 42 is sealingly connected with the mounting surface of the bottom wall 13, so that the risk of short-circuiting caused by the condensed water or other liquid flowing to the mounting hole 311 and contacting with the electrical components located in the mounting hole 311 can be reduced, resulting in higher reliability of the battery 100.

According to some embodiments of the application, the seal 42 is an elastic member.

The sealing member 42 is an elastic member, for example, the sealing member 42 may be a sealing ring, and the material of the sealing member may be, but is not limited to, rubber.

The seal 42 has a certain elasticity, and it can be forced to elastically deform. During the assembly of the high-pressure box 30 and the box bottom wall 13, the sealing element 42 is extruded, and the sealing element 42 is stressed to deform, so that the contact area between the sealing element 42 and the box bottom wall 13 can be increased.

In the above-described aspect, the seal member 42 is an elastic member, so that the sealing area between the seal member 42 and the bottom wall 13 is increased by elastic deformation of the seal member 42 when the high-pressure casing 30 is assembled with the bottom wall 13, thereby improving the sealing effect of the seal member 42 and the bottom wall 13.

Referring to fig. 4, according to some embodiments of the present application, the bottom wall 31 includes a first surface 312 facing away from the interior of the case body 301, and the sealing portion body 41 protrudes from the first surface 312 and is disposed along an edge of the first surface 312.

The first surface 312 may be a surface of the box bottom wall 31 facing the box bottom wall 13, and the box bottom wall 31 further includes a second surface 313 along the thickness direction X of the box bottom wall 31, the second surface 313 being disposed opposite to the first surface 312 along the thickness direction X of the box bottom wall 31, and the second surface 313 may be a surface of the box bottom wall 31 facing away from the box bottom wall 13.

The sealing part body 41 protrudes from the first surface 312, so that a gap is formed between the first surface 312 and the bottom wall 13, so that the sealing part body 41, the first surface 312 and the bottom wall 13 enclose the second chamber 33.

In the above-described solution, the sealing portion body 41 protrudes from the first surface 312 and is arranged along the edge of the first surface 312, so that there is a gap between the first surface 312 and the bottom wall 13, which on the one hand facilitates the installation of the sealing member 42 and on the other hand reduces the risk of liquid coming into contact with the electrical components 50 inside the high-voltage cartridge 30.

Referring to fig. 3 and 4, according to some embodiments of the application, the first surface 312 is provided with a reinforcement 314.

The reinforcing portion 314 may be regarded as a structure protruding from the first surface 312, and for example, the reinforcing portion 314 may be a reinforcing rib, which may be integrally formed with the cartridge bottom wall 31.

In the above-described aspect, the strength of the case bottom wall 31 can be increased by providing the reinforcing portion 314, so that the electric component 50 provided in the case main body 301 can be supported and positioned easily.

Referring to fig. 3, according to some embodiments of the present application, a box body 301 includes a first portion 34 and a second portion 35, the first portion 34 has an opening, the second portion 35 closes the opening, the second portion 35 and the first portion 34 enclose an accommodating space for accommodating an electrical component, and a sealing portion 40 is disposed on the first portion 34.

The first portion 34 and the second portion 35 are two portions forming the high-voltage box 30, the first portion 34 and the second portion 35 are separately arranged, the first portion 34 and the second portion 35 are mutually buckled to form a containing space, and the containing space is used for containing the electric component 50. In some embodiments, the receiving space inside the high pressure box 30 may be referred to as a first chamber 32.

In some embodiments, the second portion 35 is sealingly connected to the first portion 34 when the second portion 35 closes the opening.

The sealing 40 is arranged on the side of the first part 34 facing away from the second part 35, i.e. the sealing 40 is arranged on the side of the first part 34 facing the tank bottom wall 13, in order to facilitate the connection of the high-pressure tank 30 with the tank bottom wall 13.

In the above-described aspect, the first portion 34 and the second portion 35 are provided separately, so that the electrical component 50 is conveniently placed in the accommodation space, and the maintenance and replacement of the electrical component 50 are facilitated.

According to some embodiments of the application, the first portion 34 is detachably connected with the second portion 35.

The connection manner between the first portion 34 and the second portion 35 may be various, for example, the first portion 34 may be clamped, screwed, magnetically connected, etc. with the second portion 35.

Optionally, the first portion 34 is threadably coupled to the second portion 35 by a threaded member for ease of operation.

In the above-described arrangement, the first portion 34 is detachably connected to the second portion 35, facilitating assembly and disassembly of the first portion 34 and the second portion 35, and facilitating replacement and repair of components within the high-pressure tank 30.

Referring to fig. 4, and further referring to fig. 5 and 6, fig. 5 is a schematic structural view of a battery according to some embodiments of the present application, and fig. 5 is an open state of a case for convenience in describing components in the case; fig. 6 is a cross-sectional view of a high pressure cartridge and bottom wall assembly provided in accordance with some embodiments of the present application.

The embodiment of the application provides a battery 100, and the battery 100 comprises a case 10 and the high-voltage box 30 provided by any of the embodiments. The tank 10 includes a tank bottom wall 13. The seal 42 is in sealing connection with the tank bottom wall 13.

An accommodating space is formed inside the case 10 to accommodate the battery cells 20. The high-pressure box 30 is provided inside the case 10.

The bottom wall 13 is a wall of the case 10, and the bottom wall 13 is used to form an accommodating space for the battery 100 unit by being matched with other walls.

The seal 40 may be provided along the edge of the bottom wall 31 of the case to facilitate the sealing connection of the seal 40 to the bottom wall 13 of the case.

A seal 40 is provided between the bottom wall 31 and the bottom wall 13 so that the high-pressure tank 30 and the bottom wall 13 are sealingly connected by a seal 42.

According to the battery 100 of the embodiment of the application, the sealing part 40 is arranged between the bottom wall 31 and the bottom wall 13, the sealing member 42 is in sealing connection with the bottom wall 13, so that the area between the bottom wall 31 and the bottom wall 13 is sealed from the external area by the sealing part 40, the probability that condensed water or other liquid enters the area between the bottom wall 31 and the bottom wall 13 through the edge of the bottom wall 31 is reduced, the risk of short circuit caused by contact of the condensed water or other liquid with electric components is reduced, and the battery 100 has higher reliability.

Referring to fig. 4 and 6, according to some embodiments of the present application, a first chamber 32 is disposed in a case body 301, a mounting hole 311 communicating with the first chamber 32 is disposed on a case bottom wall 31, a sealing portion 40 is configured in a ring shape, and an orthographic projection of the sealing portion 40 on the case bottom wall 31 surrounds the mounting hole 311. The mounting hole 311 is used for mounting an electrical component.

The first chamber 32 is a space formed inside the cartridge body 301 for accommodating electrical components.

The mounting hole 311 may be a through hole provided on the cartridge bottom wall 31, and the mounting hole 311 may penetrate the cartridge bottom wall 31 in the thickness direction of the cartridge bottom wall 31 such that the mounting hole 311 communicates with the first chamber 32. The mounting hole 311 is used for mounting an electrical component.

During operation of the battery 100, electrical components (e.g., connection members, fuses, etc.) within the cartridge body 301 are liable to generate much heat, thereby increasing the temperature within the cartridge body 301. The installation hole 311 can communicate the first chamber 32 with the external environment, and can facilitate the heat generated by the electrical component to be emitted to the outside of the first chamber 32 through the installation hole 311, thereby reducing the environmental temperature in the first chamber 32.

In the above-mentioned scheme, the sealing part 40 is arranged around the mounting hole 311, the sealing member 42 is in sealing connection with the mounting surface of the tank bottom wall 13, and a sealing structure can be formed at the periphery of the mounting hole 311, so that the probability that condensed water or other liquid flows to the mounting hole 311 can be reduced, the risk of short circuit caused by contact of the condensed water or other liquid with an electric component in the mounting hole 311 can be reduced, and the battery 100 has higher reliability.

Referring to fig. 6, according to some embodiments of the present application, a gap is provided between the bottom wall 31 and the bottom wall 13 along the thickness direction of the bottom wall 31, the bottom wall 13 and the sealing portion 40 define a second chamber 33 communicating with the mounting hole 311, and the sealing portion 40 is disposed between the bottom wall 31 and the bottom wall 13 to seal the second chamber 33.

In the figure, the direction indicated by the letter X may be the thickness direction of the cartridge bottom wall 31. The thickness direction X of the box bottom wall 31 may be parallel to the thickness direction of the box bottom wall 13.

In the thickness direction X of the case bottom wall 31, there is a gap between the case bottom wall 31 and the case bottom wall 13 so that the case bottom wall 31 is not in contact with the case bottom wall 13. That is, there is a gap between the first surface 312 of the box bottom wall 31 facing the box bottom wall 13 and the box bottom wall 13.

In some implementations, the seal body 41 protrudes from the first surface 312 and the seal 42 protrudes from the first surface 312, the seal 42 being sealingly connected to the tank bottom wall 13 to seal the second chamber 33.

The sealing portion 40 is provided along the edge of the bottom wall 31 with a gap between the bottom wall 31 and the bottom wall 13 such that the bottom wall 31, the bottom wall 13 and the sealing portion 40 define the second chamber 33, since the sealing portion 40 is sealingly connected to the bottom wall 13 and/or the bottom wall 31 to seal the second chamber 33. The mounting hole 311 penetrates the cartridge bottom wall 31 so that the first chamber 32 and the second chamber 33 communicate.

In the above-mentioned scheme, have the clearance between bottom wall 31 and the bottom wall 13, sealing portion 40 sets up between bottom wall 31 and bottom wall 13 and seals second cavity 33, on the one hand, can reduce the electrical components that set up in box body 301 and the risk of comdenstion water or other liquid contact short circuits, on the other hand, second cavity 33 and first cavity 32 intercommunication, and the heat that electrical components produced in the first cavity 32 can give off to second cavity 33, is convenient for reduce the ambient temperature in the first cavity 32.

Referring to fig. 6, and with further reference to fig. 7 and 8, fig. 7 is a cross-sectional view illustrating a portion of a structure of a battery according to some embodiments of the present application; fig. 8 is a partial enlarged view at a of fig. 7.

According to some embodiments of the present application, the battery 100 further includes a plurality of electrical components 50, the plurality of electrical components 50 are disposed in the first chamber 32, at least some of the plurality of electrical components 50 are disposed corresponding to the mounting holes 311, and at least some of the plurality of electrical components 50 are connected to the bottom wall 13.

The plurality of electrical components 50 are disposed in the first chamber 32, at least a portion of the electrical components 50 and the mounting holes 311 are disposed correspondingly, for example, at least a portion of the electrical components 50 may be disposed at the mounting holes 311, or at least a portion of the electrical components 50 may be exposed from the mounting holes 311.

In some embodiments, a portion of the electrical component 50 is disposed corresponding to the mounting hole 311, and another portion of the electrical component 50 is disposed away from the mounting hole 311; alternatively, all the electric components 50 are provided corresponding to the mounting holes 311.

The number of the mounting holes 311 may be plural, and each mounting hole 311 may correspond to one electric component 50 or a plurality of electric components 50.

The electrical component 50 is connected with the bottom wall 13, and the electrical component 50 can be directly connected with the bottom wall 13, for example, the electrical component 50 is contacted with the bottom wall 13; alternatively, the electrical component 50 may be connected to the bottom wall 13 by other means, for example, the electrical component 50 may be connected to the bottom wall 13 by a heat conducting member.

In the above-described aspect, at least part of the electric components 50 and the mounting holes 311 are provided correspondingly so that at least part of the electric components 50 are connected with the bottom wall 13, and the heat generated by the electric components 50 can be transferred to the bottom wall 13 so as to reduce the heat of the electric components 50.

Referring to fig. 8, and with further reference to fig. 9, fig. 9 is a partial enlarged view of fig. 8 at B. According to some embodiments of the present application, bottom wall 13 includes a bottom wall body 131 and a thermal management component 132, thermal management component 132 being disposed between bottom wall body 131 and high voltage enclosure 30, at least a portion of electrical components 50 being connected to thermal management component 132.

The thickness direction of the tank bottom wall 13 may be parallel to the thickness direction X of the tank bottom wall 31, and the high-pressure tank 30, the thermal management member 132, and the bottom wall body 131 may be disposed in this order along the thickness direction of the tank bottom wall 13.

The thermal management component 132 is a component for regulating temperature, for example, the interior of the thermal management component 132 may be provided with a fluid through which heat exchange is achieved, regulating temperature. The fluid may be a liquid or a gas and regulating the temperature refers to cooling the electrical component 50. The thermal management component 132 may also be referred to as a cooling component, cooling system, cooling plate, or the like, which contains a fluid that may also be referred to as a cooling medium or cooling fluid, and more specifically, may be referred to as a cooling fluid or cooling gas. Alternatively, the fluid may be circulated to achieve better temperature regulation. Alternatively, the fluid may be water, a mixture of water and ethylene glycol, or air, or the like.

At least a portion of the electrical component 50 is connected to the thermal management component 132, either at least a portion of the electrical component 50 is in direct contact with the thermal management component 132 or at least a portion of the electrical component 50 is connected to the thermal management component 132 via a thermally conductive member.

In the above-described aspect, the thermal management component 132 is capable of adjusting the temperature of the electrical component 50 to emit heat of the electrical component 50, thereby reducing the temperature of the electrical component 50.

Referring to fig. 8, at least a portion of the electrical component 50 is connected to the thermal management component 132 via the thermally conductive member 60 according to some embodiments of the present application.

The heat conductive member 60 is a member having a good heat transfer, and for example, the heat conductive member 60 may be a heat conductive paste, a heat conductive pad, or the like. In some embodiments, the thermal conductive gel may be a thermal conductive silicone gel and the thermal conductive pad may be a thermal conductive silicone pad. The heat of the electrical component 50 can be quickly transferred to the thermal management component 132 through the heat conductive member 60, so that the electrical component 50 and the thermal management component 132 can transfer heat through the heat conductive member 60.

In the above-mentioned scheme, the electrical component 50 is connected with the thermal management component 132 through the heat conducting component 60, so as to transfer the heat of the electrical component 50 to the thermal management component 132, improve the heat dissipation efficiency, and facilitate the cooling of the electrical component 50.

In some embodiments, when the electrical component 50 includes a relay and a connection member, the connection member is disposed between the relay and the thermal management component, and the connection member is connected to the thermal management component through the thermally conductive member.

Referring to fig. 6 and 8, according to some embodiments of the present application, the case body 301 further includes a case sidewall 36, the case sidewall 36 is disposed around the case bottom wall 31, one end of the case sidewall 36 is connected to the case bottom wall 31, the battery 100 further includes a connecting member 71, the connecting member 71 is disposed on the case bottom wall 13, and the case sidewall 36 is connected to the connecting member 71.

The case side wall 36 and the case bottom wall 31 serve to enclose an accommodation space for accommodating the electrical component 50.

The connection member 71 is a member provided on the tank bottom wall 13, and is used for positioning the connection of the high-pressure tank 30. The connection manner of the connection member 71 and the bottom wall 13 may be various, for example, the connection member 71 may be welded to the bottom wall 13, or the connection member 71 may be engaged with the bottom wall 13, or the connection member 71 may be screwed with the bottom wall 13, for example, by a screw.

According to some embodiments of the present application, the outer peripheral wall of the case side wall 36 is provided with a first fixing portion 315, and the connection member 71 is provided with a second fixing portion 711, and the first fixing portion 315 and the second fixing portion 711 are locked by the locking member 72 to sealingly connect the sealing member 42 with the case bottom wall 13.

The first fixing portion 315 is provided on the outer peripheral wall of the case side wall 36, and for example, the first fixing portion 315 may be a protrusion formed on the outer peripheral wall of the case side wall 36, or the first fixing portion 315 may be a protrusion connected to the outer peripheral wall of the case side wall 36.

The second fixing portion 711 is a portion of the connecting member 71 corresponding to the first fixing portion 315, and the second fixing portion 711 corresponds to the first fixing portion 315 in position so as to connect the first fixing portion 315 and the second fixing portion 711 by the locking member 72.

The locking member 72 is a member for locking the first fixing portion 315 and the second fixing portion 711, and the locking member 72 may be, but not limited to, a bolt, a buckle, or the like.

In the above-mentioned scheme, the first fixing portion 315 and the second fixing portion 711 are locked by the locking member 72, so that the high-pressure box 30 can be positioned, the risk that the high-pressure box 30 moves in the box 10 is reduced, and meanwhile, the sealing connection between the sealing member 42 and the box bottom wall 13 is facilitated, and the sealing stability is improved.

Referring to fig. 6 and 8, according to some embodiments of the application, the first fixing portion 315 is provided with a first connecting hole 316, the second fixing portion 711 is provided with a second connecting hole 712, and the locking member 72 is disposed through the first connecting hole 316 and the second connecting hole 712 and is in threaded connection with the connecting member 71.

The first connection hole 316 may be a through hole provided at the first fixing portion 315. The second connection hole 712 may be a through hole provided in the second fixing portion 711, and may be a screw hole provided in the second fixing portion 711.

The locking member 72 is configured to pass through the first and second coupling holes 316 and 712 and to be screw-coupled with the coupling member 71. Alternatively, the locking member 72 may be a bolt, and the second connection hole 712 may be a threaded hole engaged with the locking member 72, and the locking member 72 is threaded through the first connection hole 316 and the second connection hole 712 and is screwed with the connection member 71. In other embodiments, the second connecting hole 712 may be a through hole, and the locking member 72 is connected with the nut after passing through the first connecting hole 316 and the second connecting hole 712 to lock the first fixing member and the second fixing member.

In the above scheme, the locking member 72 is disposed through the first connecting hole 316 and the second connecting hole 712 and is in threaded connection with the connecting member 71, so that the assembly and disassembly are convenient, and the operation is convenient.

In some embodiments, the first and second connection holes 316 and 712 may each be a threaded hole, or the first connection hole 316 may be a threaded hole and the second connection hole 712 may be a through hole.

According to some embodiments of the present application, there is further provided an electrical device including the battery 100 provided in any of the above embodiments.

Battery 100 is used to provide electrical power to powered devices.

The powered device may be any of the devices or systems described above that employ battery 100.

Referring to fig. 3 to 9, according to some embodiments of the present application, a battery 100 is provided, wherein the battery 100 includes a case 10, a battery 100 unit, a high voltage box 30, an electrical component 50, a heat conducting member 60, a connecting member 71 and a locking member 72. The case 10 includes a case bottom wall 13, and the case bottom wall 13 includes a bottom wall body 131 and a thermal management member 132, the thermal management member 132 being located on a side of the bottom wall body 131 facing the inside of the case 10. The battery 100 cells are disposed on a side of the thermal management member 132 remote from the bottom wall body 131. The high-pressure tank 30 includes a tank body 301 and a seal portion 40, a tank bottom wall 31 of the tank body 301 and a tank side wall 36, the tank bottom wall 31 having a first surface 312 facing the tank bottom wall 13 and a second surface 313 facing away from the tank bottom wall 13, the tank side wall 36 being disposed around the tank bottom wall 31, one end of the tank side wall 36 being connected to the tank bottom wall 31, the tank side wall 36 and the second surface 313 enclosing a first chamber 32. The cartridge bottom wall 31 is provided with a mounting hole 311 communicating with the first chamber 32. The seal portion 40 is provided at the edge of the cartridge bottom wall 31 and along the edge of the cartridge bottom wall 31, the seal portion 40 is configured in a ring shape, and an orthographic projection of the seal portion 40 on the cartridge bottom wall 31 surrounds the mounting hole 311. The seal portion 40 includes a seal portion body 41 and a seal member 42, the seal portion body 41 is formed at an edge of the cartridge bottom wall 31, the seal portion body 41 is provided with a groove 411, and a part of the seal member 42 is embedded in the groove 411. The sealing portion body 41 protrudes from the first surface 312 with a gap between the first surface 312 and the thermal management member 132 in the thickness direction of the cartridge bottom wall 31, and the thermal management member 132, the sealing portion 40, and the first surface 312 define the second chamber 33 communicating with the mounting hole 311. The seal 42 is sealingly connected to the thermal management component 132 to seal the second chamber 33. The electrical component 50 is disposed in the first chamber 32, and a portion of the electrical component 50 is disposed corresponding to the mounting hole 311, and a portion of the electrical component 50 is connected to the thermal management component 132 through a heat conductive adhesive. The connecting member 71 is provided to the tank bottom wall 13, the tank side wall 36 is provided with a first fixing portion 315, the connecting member 71 is provided with a second fixing member, and the first fixing portion 315 and the second fixing portion 711 are locked by the locking member 72 to achieve connection positioning of the high-voltage tank 30.

According to the battery 100 of the embodiment of the application, the bottom wall 31 of the box is provided with the mounting holes 311, a part of the electric components 50 are correspondingly arranged with the mounting holes 311, and a part of the electric components 50 are connected with the thermal management component 132 through heat conducting glue so as to transfer the heat of the electric components 50 to the thermal management component 132, thereby realizing heat dissipation of the electric components 50; the seal 42 is in sealing connection with the thermal management component 132 to provide a sealing connection between the bottom of the high pressure box 30 and the bottom wall 13, reducing the risk of condensate or other liquids entering the bottom of the high pressure box 30 and shorting to electrical components 50 within the high pressure box 30, resulting in higher reliability of the battery 100.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A high pressure cassette comprising:

The box body comprises a box bottom wall;

the sealing part comprises a sealing part body and a sealing piece, wherein the sealing part body is arranged on the bottom wall of the box and is provided with a groove;

and part of the sealing piece is embedded in the groove, and part of the sealing piece extends out of the groove.

2. The high pressure cartridge of claim 1, wherein the seal is disposed along an edge of the cartridge bottom wall.

3. The high pressure cartridge according to claim 1, wherein a first chamber is provided in the cartridge body, a mounting hole communicating with the first chamber is provided in the cartridge bottom wall, the sealing portion is configured in a ring shape, and an orthographic projection of the sealing portion on the cartridge bottom wall surrounds the mounting hole.

4. The high pressure cartridge of claim 1, wherein the seal is an elastic member.

5. The high pressure cartridge of claim 1, wherein the cartridge bottom wall includes a first surface facing away from the cartridge body interior, the seal body protruding from the first surface and being disposed along an edge of the first surface.

6. The high pressure cartridge of claim 5, wherein the first surface is provided with a reinforcement.

7. The high voltage cartridge according to claim 1, wherein the cartridge body includes a first portion having an opening and a second portion closing the opening, the second portion and the first portion enclosing a housing space for housing an electrical component, the first portion being provided with the sealing portion.

8. The high pressure cartridge of claim 7, wherein the first portion is removably connected to the second portion.

9. A battery, comprising:

a case body including a case bottom wall;

the high pressure cartridge of any one of claims 1-8, said seal being sealingly connected to said bottom wall.

10. The battery according to claim 9, wherein a first chamber is provided in the case body, a mounting hole communicating with the first chamber is provided in the case bottom wall, the sealing portion is configured in a ring shape, and an orthographic projection of the sealing portion on the case bottom wall surrounds the mounting hole.

11. The battery according to claim 10, wherein a gap is provided between the case bottom wall and the case bottom wall in a thickness direction of the case bottom wall, and the sealing portion defining a second chamber communicating with the mounting hole, the sealing portion being provided between the case bottom wall and the case bottom wall to seal the second chamber.

12. The battery of claim 10, further comprising a plurality of electrical components disposed within the first chamber, at least a portion of the plurality of electrical components being disposed in correspondence with the mounting holes, the at least a portion of the electrical components being connected to the bottom wall.

13. The battery of claim 12, wherein the bottom wall includes a bottom wall body and a thermal management component disposed between the bottom wall body and the high voltage enclosure, the at least a portion of the electrical component being connected to the thermal management component.

14. The battery of claim 13, wherein the at least a portion of the electrical component is connected to the thermal management component by a thermally conductive member.

15. The battery of claim 9, wherein the cartridge body further comprises a cartridge sidewall disposed about a periphery of the cartridge bottom wall, one end of the cartridge sidewall being connected to the cartridge bottom wall, the battery further comprising a connector disposed in the cartridge bottom wall, the cartridge sidewall being connected to the connector.

16. The battery according to claim 15, wherein the outer peripheral wall of the case side wall is provided with a first fixing portion, and the connecting member is provided with a second fixing portion, and the first fixing portion and the second fixing portion are locked by a locking member so that the sealing member is sealingly connected with the case bottom wall.

17. The battery of claim 16, wherein the first fixing portion is provided with a first connection hole, the second fixing portion is provided with a second connection hole, and the locking member is threaded through the first connection hole and the second connection hole and is screwed with the connecting member.

18. A powered device comprising a battery as claimed in any one of claims 9-17.