Batteries, energy storage devices and power consumption devices

Abstract

A battery, an energy storage device and an electrical device. The battery comprises an electrical connection component and a box, the box comprises an upper shell and a lower shell, the upper shell cover is arranged on the lower shell and cooperates with the lower shell to define a receiving cavity for accommodating a battery cell, and the electrical connection component is arranged on the upper shell. The box of the battery is lighter and the energy density of the battery is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a battery, an energy storage device and an electrical device. Background Art

[0002] Without changing the total energy of the battery, the reduction of battery quality can effectively increase the driving range of new energy vehicles. The battery box in the related art is heavy, which affects the further improvement of the battery energy density. Utility Model Content

[0003] The embodiment of the utility model provides a battery, the box weight of the battery is lighter and the energy density of the battery is higher.

[0004] In a first aspect, an embodiment of the utility model provides a battery, comprising an electrical connection component and a box body, wherein the box body comprises an upper shell and a lower shell, wherein the upper shell cover is disposed on the lower shell and cooperates with the lower shell to define a accommodating cavity for accommodating a battery cell, and the electrical connection component is disposed on the upper shell.

[0005] In the above technical solution, by arranging the electrical connection components on the upper shell, the upper shell is used to cooperate with the lower shell to define a space for accommodating battery cells. The upper shell does not need to bear the weight of the battery cells, so the weight of the upper shell per unit area can be less than the weight of the lower shell per unit area. By arranging the electrical connection components on the upper shell, the size of the lower shell at least in the up and down directions can be reduced, so that the weight of the entire lower shell can be reduced, and then the weight of the entire battery can be reduced, and the energy density of the battery can be improved; at the same time, the difficulty and cost of processing the mounting structure or opening area for installing the electrical connection components on the upper shell are lower, so it is also beneficial to reduce the production cost of the battery.

[0006] In some embodiments, the electrical connection component includes a monitoring unit and / or a connector.

[0007] In the above technical solution, the monitoring unit and / or the connector are arranged on the upper shell, which can reduce the weight of the entire battery and thus improve the energy density of the battery.

[0008] In some embodiments, the monitoring unit includes a battery collection monitoring unit; and / or the connector includes a mounting piece and a high-voltage connector and / or a low-voltage connector provided on the mounting piece.

[0009] In the above technical solution, the battery collection monitoring unit, the high voltage connector and / or the low voltage connector are arranged on the upper shell, which can reduce the weight of the entire battery and thus improve the energy density of the battery.

[0010] In some embodiments, the upper shell has an opening area, the electrical connection component covers the opening area, the electrical connection component is at least partially located outside the upper shell, and the electrical connection component is connected to the internal components of the box.

[0011] In the above technical solution, by making the electrical connection component at least partially located outside the upper shell, the occupation of the internal space of the box can be reduced, and the electrical connection component can occupy the space above the connection edge without additionally increasing the maximum occupied space of the box, so more battery cells can be arranged in the box or the size of the internal space of the box can be reduced. In addition, the electrical connection component is at least partially located outside the upper shell, and it is convenient to check and repair without opening the upper shell during maintenance.

[0012] In some embodiments, the electrical connection component includes a battery collection and monitoring unit, and the battery collection and monitoring unit is entirely located outside the upper shell.

[0013] In the above technical solution, by arranging the battery collection and monitoring unit on the outside of the upper shell, on the one hand, the battery collection and monitoring unit can occupy the space above the connecting edge of the upper shell without increasing the maximum occupied space of the box, which is beneficial to improving the energy density of the battery; on the other hand, the battery collection and monitoring unit is located outside the upper shell as a whole, which is more convenient for maintenance.

[0014] In some embodiments, the electrical connection component includes a mounting piece and a high-voltage connector and / or a low-voltage connector, the mounting piece includes a mounting body and a mounting portion, the mounting portion is connected to the circumferential side wall of the mounting body, the high-voltage connector and / or the low-voltage connector is arranged on the mounting body, the mounting body is passed through the opening area, and the mounting portion is located inside the upper shell.

[0015] In the above technical solution, the processing difficulty of the mounting piece is low, and the molding difficulty of the upper shell can also be reduced. In addition, the high-voltage connector and the low-voltage connector are first arranged on the mounting piece, and then installed on the upper shell, which is conducive to improving the efficiency of the box assembly and reducing the difficulty of the box assembly.

[0016] In some embodiments, the battery further includes a fuse, which is disposed in the box and opposite to the opening area.

[0017] In the above technical solution, the fuse is arranged in the box body and opposite to the opening area, so the fuse can be easily inspected and replaced without opening the upper shell body.

[0018] In some embodiments, the electrical connection component is sealed to the upper shell via a seal, and the seal is disposed around the opening area.

[0019] In the above technical solution, a seal is provided between the electrical connection component and the upper shell, and the seal seals the gap between the electrical connection component and the upper shell, thereby reducing the possibility of liquid and impurities entering the accommodating cavity of the box through the opening area, and reducing the possibility of liquid, impurities, etc. affecting the use of the battery.

[0020] In some embodiments, the upper shell has a first sealing surface, the electrical connection component has a second sealing surface, the first sealing surface and the second sealing surface are both sealed with the seal, and a limiting portion is provided between the electrical connection component and the upper shell to separate the first sealing surface and the second sealing surface by a set gap.

[0021] In the above technical solution, a set gap is set between the first sealing surface and the second sealing surface, wherein the set gap is smaller than the initial thickness of the seal. Thus, when the electrical connection component and the upper shell are pressed and fixed, the seal can be compressed to a thickness of the set gap, so that good sealing is achieved between the first sealing surface and the seal, and between the second sealing surface and the seal.

[0022] In some embodiments, the surfaces opposite to each other of the electrical connection component and the upper shell are the first sealing surface and the second sealing surface, and the electrical connection component and the upper shell are connected by a connecting piece penetrating the electrical connection component and the upper shell, and the connecting piece has the limiting portion, and the limiting portion abuts between the electrical connection component and the upper shell to separate the first sealing surface and the second sealing surface by a set gap.

[0023] In the above technical solution, the connector defines a limiting portion, so there is no need to provide the limiting portion on the upper shell and the electrical connection component, which is beneficial to reducing the structural complexity of the upper shell and the electrical connection component.

[0024] In some embodiments, one of the electrical connection component and the upper shell is provided with a groove, the surface of the other of the electrical connection component and the upper shell facing the groove and the bottom surface of the groove define the first sealing surface and the second sealing surface, and the notch edge of the groove defines the limiting portion and abuts against the surface of the other of the electrical connection component and the upper shell facing the groove.

[0025] In the above technical solution, a groove is provided to accommodate the seal. During installation, the seal can be directly placed in the groove, which makes installation more convenient.

[0026] In some embodiments, the upper shell includes an upper shell body and a reinforcement member, the upper shell body includes a mounting area, the mounting area is used to connect with the electrical connection component, and the reinforcement member is used to reinforce the mounting area.

[0027] In the above technical solution, the installation area is strengthened by providing a reinforcement piece. On the one hand, the portion of the upper shell corresponding to the installation area is less likely to be damaged; on the other hand, the installation of the electrical connection component is more stable.

[0028] In some embodiments, the reinforcement member is disposed on a side of the installation area facing away from the electrical connection component.

[0029] In the above technical solution, the reinforcement member is arranged on the side of the installation area facing away from the electrical connection component, so that the installation area will be clamped between the electrical connection component and the reinforcement member, the reinforcement effect is better, and the sealing effect of the seal will not be affected.

[0030] In some embodiments, the reinforcement member includes an annular reinforcement plate extending along the circumference of the electrical connection component; or, the reinforcement member includes a plurality of sub-reinforcements, and the plurality of sub-reinforcements are arranged along the circumference of the electrical connection component.

[0031] In the above technical solution, the installation area is reinforced by an annular reinforcement plate, and the reinforcement effect at various locations in the installation area is highly consistent, the structural strength is high, and the reinforcement effect is good. The reinforcement member includes multiple sub-reinforcements, so the cost of the reinforcement member is lower.

[0032] In some embodiments, the upper shell body has an opening area, the electrical connection component covers the opening area, and the reinforcement is arranged around the opening area.

[0033] In the above technical solution, the reinforcement is arranged around the opening area, so that the reinforcement can reinforce the circumferential edge of the opening area, which is beneficial to make the part of the upper shell with the opening area less prone to deformation and damage.

[0034] In some embodiments, the edge of the reinforcement close to the opening area is connected with a rib; or the edge of the opening area is connected with a rib.

[0035] In the above technical solution, in the embodiment where the wire harness needs to be passed through the opening area, by providing a rib at the edge of the reinforcement or the opening area, the rib can reduce the possibility of the wire harness being scratched by the edge corners of the reinforcement or the opening area.

[0036] In some embodiments, the upper shell body is made of plastic or metal.

[0037] In the above technical solution, the upper shell body is made of plastic material, so that the upper shell body is easier to mold, has lower molding costs, and is lighter. The upper shell body made of metal material has better durability, higher mechanical strength, and better high temperature resistance.

[0038] In some embodiments, the electrical connection component is located outside the upper shell, the reinforcement is located inside the upper shell, the battery also includes a first pre-installed component, and the reinforcement is connected to the upper shell through the first pre-installed component; or, the upper shell includes an opening area, the electrical connection component is passed through the opening area, the reinforcement is located outside the upper shell, and the battery also includes a second pre-installed component, and the electrical connection component is connected to the lower shell through the second pre-installed component.

[0039] In the above technical solution, by providing the first pre-installed part, the installation of the reinforcement part is convenient, and at the same time, the reinforcement part is not easy to fall into the box body during disassembly, and when the electrical connection part is installed again, there is no need to install the reinforcement part. By providing the second pre-installed part, the installation of the electrical connection part can be made more convenient and less difficult.

[0040] In some embodiments, the electrical connection component is mounted on a circumferential side wall of the upper shell, and the circumferential side wall of the upper shell is inclined outward from top to bottom.

[0041] In the above technical solution, the molding difficulty of the upper shell is low.

[0042] In some embodiments, the electrical connection component includes a component body and a mounting portion, the mounting portion is connected to the circumferential side wall of the component body, the upper shell has a mounting area, the mounting area is arranged opposite to and connected to the mounting portion, and the battery also includes a connector, the connector is passed through the mounting area and the mounting portion to connect the upper shell and the electrical connection component.

[0043] In the above technical solution, the upper shell and the electrical connection component are connected by a connector that penetrates the installation area and the installation portion, so that the connection is more stable and less likely to come off.

[0044] In some embodiments, the connector includes a fixed portion and a movable portion, and the fixed portion and the movable portion are detachably connected to each other, wherein the upper shell has an opening area, the component body is passed through the opening area, and the mounting portion is located inside the upper shell and connected to the fixed portion; or, the electrical connection component is located as a whole outside the upper shell, and the fixed portion is connected to the upper shell.

[0045] In the above technical solution, the one located on the inner side of the upper shell and the mounting part is connected to the fixing part, so that the fixing part is not easy to fall into the accommodating cavity.

[0046] In some embodiments, the mounting portion extends in a ring shape along the circumference of the component body.

[0047] In the above technical solution, the component body is connected to the upper shell through the annular mounting portion, and the connection stability is better.

[0048] In some embodiments, there are a plurality of the connectors, and the plurality of the connectors are spaced apart and arranged along the circumference of the component body, and a distance between adjacent connectors is less than or equal to 70 mm.

[0049] In the above technical solution, the connection between the upper shell and the electrical connection component is more stable, and the problem of the upper shell and the electrical connection component being detached is not likely to occur during long-term use.

[0050] In a second aspect, an embodiment of the utility model further provides an energy storage device, comprising the above-mentioned battery.

[0051] In a third aspect, an embodiment of the utility model further provides an electrical device, comprising the above-mentioned battery, wherein the battery is used to provide electrical energy to the electrical device.

[0052] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0054] Figure 2 A schematic diagram of the structure of a battery provided in an embodiment of the utility model;

[0055] Figure 3 A schematic diagram of the structure of a battery collection and monitoring unit and an upper housing provided in an embodiment of the utility model;

[0056] Figure 4 An exploded view of the battery collection monitoring unit and the upper housing provided in an embodiment of the utility model;

[0057] Figure 5 A schematic diagram of the structure of a reinforcement member provided in an embodiment of the utility model;

[0058] Figure 6 An exploded view of the electrical connector and the upper housing provided in an embodiment of the utility model;

[0059] Figure 7 A cross-sectional view of a battery collection monitoring unit and a seal provided in an embodiment of the utility model;

[0060] Figure 8 A schematic diagram of the structure of an energy storage device provided in some embodiments of the present application.

[0061] Reference numerals:

[0062] Electric device 1000; battery 100; controller 200; motor 300; energy storage device 2000;

[0063] Electrical connection component 10;

[0064] Battery collection monitoring unit 101; connector 102; mounting piece 1021; high voltage connector 1022;

[0065] Low voltage connector 1023; mounting body 1024; mounting portion 1025; component body 1026;

[0066] Second sealing surface 103; groove 104;

[0067] Box 20;

[0068] Upper shell 201; first sealing surface 2011; upper shell body 2012; reinforcement member 2013;

[0069] Lower housing 202; accommodating chamber 203; opening area 204; sealing member 30; limiting portion 301;

[0070] Connecting member 40 ; fixing portion 401 ; movable portion 402 ; first pre-installed member 50 ; retaining edge 60 . DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0072] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those generally understood by technicians in the technical field of the present invention; the terms used in the present invention and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0073] The reference to "embodiment" in the present invention means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0074] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", and "attachment" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] The term "and / or" in the present invention is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0076] In the embodiments of the present invention, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present invention shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary and should not constitute any limitation on the present invention.

[0077] The term "plurality" used in the present invention refers to more than two (including two).

[0078] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0079] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0080] In the related art, the battery includes a case and a battery cell. The case defines a storage space for accommodating the battery cell. The case includes an upper shell and a lower shell. The lower shell is used to place the battery cell, support the weight of the battery cell, and stably install the battery on an external component, such as a vehicle frame. Therefore, the lower shell is usually made of thicker sheet metal.

[0081] At the same time, the electrical connection components used to connect to the internal devices of the box are usually arranged on the lower shell. Therefore, the lower shell needs to have an installation position to install the electrical connection components. For example, the circumferential side walls of the lower shell need to be larger in the up and down directions so that the electrical connection components can be arranged on the circumferential side walls of the lower shell, which greatly increases the weight of the entire lower shell and the weight of the entire battery is also heavier.

[0082] In view of this, in order to solve the above problems, the present application provides a battery 100, the battery 100 includes an electrical connection component 10 and a box body 20, the box body 20 includes an upper shell 201 and a lower shell 202, the upper shell 201 is covered on the lower shell 202 and cooperates with the lower shell 202 to define a accommodating cavity 203 for accommodating a battery cell, and the electrical connection component 10 is arranged on the upper shell 201.

[0083] In the battery 100 of the above-mentioned structure, the electrical connection component 10 is arranged on the upper shell 201, and the upper shell 201 is used to cooperate with the lower shell 202 to define a space for accommodating the battery cell. The upper shell 201 does not need to bear the weight of the battery cell, so it can usually be made of a thinner sheet metal. The electrical connection component 10 is arranged on the upper shell 201, and the size of the lower shell 202 in the upper and lower directions can be reduced, so that the weight of the entire lower shell 202 can be reduced, and then the weight of the entire battery 100 can be reduced, which is beneficial to improving the energy density of the battery 100; at the same time, the difficulty and cost of processing the mounting structure or the opening area 204 for mounting the electrical connection component 10 on the upper shell 201 are lower, so it is also beneficial to reduce the production cost of the battery 100.

[0084] The battery 100 disclosed in the embodiment of the present application can be used in an electric device 1000 using the battery 100 as a power source or various energy storage devices 2000 using the battery 100 as an energy storage element. For example, the electric device 1000 disclosed in the embodiment of the present utility model can be, but is not limited to, a vehicle, a mobile phone, a tablet, a laptop, a ship, a spacecraft, an electric toy, and an electric tool, etc. The vehicle can be a fuel vehicle, a gas vehicle, a new energy vehicle, or a rail vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc.; the spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, etc.; the electric toy includes a fixed or mobile electric toy, such as a game console, an electric vehicle 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 assembly electric tool, and an electric tool for railways, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, etc. For example, the energy storage device 2000 disclosed in the embodiment of the present utility model can be an energy storage container or an energy storage cabinet.

[0085] For the convenience of description, the following embodiments are described by taking an electric device 1000 of an embodiment of the present application as a vehicle as an example.

[0086] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle provided for some embodiments of the present application. The vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle, and the battery 100 may be provided at the bottom, head or tail of the vehicle. The battery 100 may be used to power the vehicle, for example, the battery 100 may be used as an operating power source for the vehicle. The vehicle may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle.

[0087] In some embodiments of the present application, the battery 100 can be used not only as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0088] In the present invention, the battery cell can be a secondary battery or a primary battery; it can also be a lithium-ion battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery or a magnesium-ion battery, etc., which is not limited in the embodiments of the present invention. The battery cell can be cylindrical, flat, rectangular or other shapes, etc., which is not limited in the embodiments of the present invention. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, which is not limited in the embodiments of the present invention.

[0089] For example, a battery cell may include a housing, an electrode assembly and an electrolyte, wherein the housing is used to contain the electrode assembly and the electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode collector and a positive electrode active material layer, wherein the positive electrode active material layer is coated on the surface of the positive electrode collector, and the positive electrode collector not coated with the positive electrode active material layer protrudes from the positive electrode collector coated with the positive electrode active material layer, and the positive electrode collector not coated with the positive electrode active material layer serves as a positive electrode ear. Taking a lithium-ion battery as an example, the material of the positive electrode collector may be aluminum, and the positive electrode active material may be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc.

[0090] The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The negative electrode current collector not coated with the negative electrode active material layer protrudes from the negative electrode current collector coated with the negative electrode active material layer. The negative electrode current collector not coated with the negative electrode active material layer serves as a negative electrode tab. The material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon, etc. In order to ensure that a large current passes without melting, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.

[0091] The material of the isolation film may be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly may be a winding structure or a stacked structure, but the embodiments of the present application are not limited thereto.

[0092] The battery cell may be provided with a pole or the like connected to the pole lug as the electrical connection part of the battery cell. In addition, the battery cell usually has a pressure relief part. When the internal pressure of the battery cell is too high (for example, thermal runaway), the pressure relief part is used to release the internal substances of the battery cell (for example, gas, liquid, particulate matter, etc.) to reduce the internal pressure of the battery cell and avoid the internal pressure of the battery cell being too quickly pressurized, which may lead to dangerous accidents such as explosion of the battery cell. For example, the pressure relief part may be an explosion-proof valve, an explosion-proof plate, etc.

[0093] Hereinafter, a battery 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0094] Please refer to Figure 2 , Figure 2 The schematic diagram of the structure of the battery 100 provided in the embodiment of the utility model. The battery 100 includes an electrical connection component 10, a box body 20 and a battery cell. The box body 20 includes an upper shell 201 and a lower shell 202. The upper shell 201 is covered on the lower shell 202 and cooperates with the lower shell 202 to define a receiving cavity 203 for receiving the battery cell. The electrical connection component 10 is provided on the upper shell 201.

[0095] Specifically, the box body 20 includes an upper shell 201 and a lower shell 202. The upper shell 201 covers the lower shell 202 and cooperates with the lower shell 202 to define a receiving cavity 203 for accommodating a battery cell. Placing the battery cell in the receiving cavity 203 can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cell.

[0096] The lower shell 202 may be a hollow structure with an opening at the upper end, the upper shell 201 may be a plate-like structure, the upper shell 201 covers the opening side of the lower shell 202, and the electrical connection component 10 is arranged on the top of the box body 20; the lower shell 202 and the upper shell 201 may also be hollow structures with an opening on one side, the opening side of the upper shell 201 covers the opening side of the lower shell 202, and the electrical connection component 10 is arranged on the circumferential side wall of the upper shell 201 and / or the top wall of the upper shell 201; the lower shell 202 may also be a plate-like structure, the plate-like structure has a convex part and a concave part, the upper shell 201 is a hollow structure with an opening on one side, and the lower shell 202 covers the opening side of the upper shell 201. Of course, the box body 20 formed by the upper shell 201 and the lower shell 202 may be in various shapes, such as a cylinder, a cuboid, a prism, etc. The upper shell 201 can be a metal part or a composite material part; the lower shell 202 can be a metal part or a composite material part; the composite material part can be a composite resin part.

[0097] The electrical connection component 10 is used to electrically connect with the internal components of the box 20. For example, the electrical connection component 10 can be connected to the internal acquisition components of the box 20 for communication, or can be connected to the battery cells in the box 20 for electrical connection, or can be connected to the external components of the box 20 for wired communication or wireless communication, etc. The electrical connection component 10 can be arranged in its entirety inside the accommodating cavity 203, or can be arranged in its entirety outside the accommodating cavity 203; the upper shell 201 can also be provided with an opening area 204, and the electrical connection component 10 is arranged through the opening area 204, that is, the electrical connection component 10 can be partially located outside the accommodating cavity 203 and partially located inside the accommodating cavity 203.

[0098] In the battery 100, there may be multiple battery cells, and the multiple battery cells may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells are both connected in series and in parallel. The multiple battery cells may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells may be accommodated in the box 20; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells in series, in parallel, or in a mixed connection, and then the multiple battery modules may be connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 20. The battery 100 may also include other structures, for example, the battery 100 may also include a converging component for realizing electrical connection between the multiple battery cells.

[0099] In the embodiment of the utility model, the weight per unit area of ​​the upper shell 201 is less than the weight per unit area of ​​the lower shell 202. For example, the thickness of the upper shell 201 is less than the thickness of the lower shell 202; or, the material density of the upper shell 201 is less than the material density of the lower shell 202; or, the lower shell 202 is a multi-layer shell, and the upper shell 201 is a single-layer shell.

[0100] The lower shell 202 needs to bear the weight of the entire battery 100, and also needs to provide sufficient structural strength and protection to reduce the impact of external shock and vibration on the battery cells during vehicle driving. Therefore, the lower shell 202 is usually designed to be thicker and stronger. The upper shell 201 is mainly used to accommodate battery cells and battery management systems, etc., and its structural strength requirements are relatively low, so the thickness of the upper shell 201 can be relatively thin.

[0101] According to the battery 100 of the embodiment of the utility model, by arranging the electrical connection component 10 on the upper shell 201, the upper shell 201 is used to cooperate with the lower shell 202 to define a space for accommodating the battery cell. The upper shell 201 does not need to bear the weight of the battery cell, so the weight of the upper shell 201 per unit area can be less than the weight of the lower shell 202 per unit area. By arranging the electrical connection component 10 on the upper shell 201, the size of the lower shell 202 at least in the up and down directions can be reduced, so that the weight of the entire lower shell 202 can be reduced, and then the weight of the entire battery 100 can be reduced, and the energy density of the battery 100 can be improved; at the same time, the difficulty and cost of processing the mounting structure or the opening area 204 for mounting the electrical connection component 10 on the upper shell 201 are lower, so it is also beneficial to reduce the production cost of the battery 100.

[0102] In some embodiments, the electrical connection component 10 includes a monitoring unit and / or a connector 102 .

[0103] That is, the electrical connection component 10 may include only the monitoring unit, the electrical connection component 10 may include only the connector 102 , or the electrical connection component 10 may include both the monitoring unit and the connector 102 .

[0104] The monitoring unit is an electronic device or system for monitoring the state and performance of the battery 100, for example, for real-time monitoring of the parameters of the battery cell, the environmental parameters of the receiving chamber 203, etc., to improve the use effect of the battery 100. For example, the monitoring unit can be a battery acquisition monitoring unit 101 (see Figure 2 and Figure 3 ,in, Figure 2 This is a schematic diagram of the structure of the battery collection monitoring unit 101 and the upper housing 201 provided in an embodiment of the utility model. Figure 3The present utility model provides a schematic diagram of the structure of the battery collection monitoring unit 101 and the upper shell 201. The battery collection monitoring unit (CSC, Cell Supervision Circuit) is mainly used to complete the functions of voltage sampling, temperature sampling, voltage balancing, sampling abnormality detection, etc. of the battery cells in the battery 100, and upload the collected and monitored information to the main control. The monitoring unit may also include a circuit breaker or a fuse, etc.

[0105] The connector 102 may be a variety of electrical connection interfaces. For example, the connector 102 may include only a high voltage connector 1022, the connector 102 may include only a low voltage connector 1023, or the connector 102 may include both a high voltage connector 1022 and a low voltage connector 1023, wherein the high voltage connector 1022 includes a positive high voltage connector and a negative high voltage connector. Figure 2 The connector 102 may further include a mounting member 1021, and the high voltage connector 1022 and / or the low voltage connector 1023 are disposed on the mounting member 1021. The connector 102 may further include a maintenance switch, which is connected between the battery cell and the total output positive electrode and is used to maintain or disconnect the connection relationship between the battery cell and the total output positive electrode.

[0106] By disposing the monitoring unit and / or the connector 102 on the upper housing 201 , the weight of the entire battery 100 can be reduced, thereby increasing the energy density of the battery 100 .

[0107] In some embodiments, please refer to Figure 4 and Figure 6 ,in, Figure 4 The exploded diagram of the battery collection monitoring unit 101 and the upper housing 201 provided in the embodiment of the utility model is as follows: Figure 6 The exploded view of the upper housing 201 and the electrical connector 102 provided in the embodiment of the utility model. The upper housing 201 has an opening area 204, and the electrical connection component 10 is covered in the opening area 204. The electrical connection component 10 is at least partially located outside the upper housing 201, and the electrical connection component 10 is connected to the internal components of the box 20.

[0108] Specifically, the electrical connection component 10 needs to be partially located outside the accommodating cavity 203 and connected to a wiring harness; the wiring harness can be passed through the opening area 204 to be connected to the device in the accommodating cavity 203; or, the electrical connection component 10 is passed through the opening area 204 to be partially located inside the accommodating cavity 203 and partially located outside the accommodating cavity 203, and the wiring harness is connected to the device in the accommodating cavity 203.

[0109] like Figure 2As shown, the electrical connection component 10 may include a mounting portion 1025 and a mounting portion 1025, wherein the mounting portion 1025 is connected to the mounting portion 1025 and is used to mount the electrical connection component 10 on the upper housing 201. The size of the opening area 204 in a direction perpendicular to its normal line may be smaller than the size of the mounting portion 1025 in a direction perpendicular to the normal line of the opening area 204, may be close to or equal to the size of the mounting portion 1025 in a direction perpendicular to the normal line of the opening area 204, or may be larger than the size of the mounting portion 1025 in a direction perpendicular to the normal line of the opening area 204. The shape of the opening area 204 may be rectangular, polygonal, circular, irregular, etc., and is not specifically limited here.

[0110] The electrical connection component 10 is at least partially located outside the upper shell 201 , that is, the electrical connection component 10 may be partially located outside the upper shell 201 or may be completely located outside the upper shell 201 .

[0111] It should be noted that in order to ensure good connection stability between the upper shell 201 and the lower shell 202, the side edge of the upper shell 201 facing the lower shell 202 and the side edge of the lower shell 202 facing the upper shell 201 are both provided with connecting edges extending outward, and the connecting edges of the upper shell 201 and the connecting edges of the lower shell 202 are relative and connected. In the related art, the electrical connection component is arranged in the box body, occupying the internal space of the box body. The present application reduces the occupation of the internal space of the box body 20 by making the electrical connection component 10 at least partially located outside the upper shell 201. The electrical connection component 10 can occupy the space above the connecting edge without additionally increasing the maximum occupied space of the box body 20, so that more battery cells can be arranged in the box body 20 or the size of the internal space of the box body 20 can be reduced. In addition, the electrical connection component 10 is at least partially located outside the upper shell 201, and it is convenient to check and repair without opening the upper shell 201 during maintenance.

[0112] In some embodiments, please refer to Figures 2 to 4 As shown, the electrical connection component 10 includes a battery collection and monitoring unit 101 , and the battery collection and monitoring unit 101 is entirely located outside the upper housing 201 .

[0113] It should be noted that in the related art, the battery collection monitoring unit is usually arranged inside the box. When it is maintained or replaced, it is necessary to open the upper shell of the box to take out the battery collection monitoring unit, which is inconvenient for maintenance. In addition, the battery collection monitoring unit is arranged inside the box, and an additional bracket structure for fixing the battery collection monitoring unit is required, which occupies a large space and increases the structural complexity of the battery. In the present application, by arranging the battery collection monitoring unit 101 outside the upper shell 201, on the one hand, the battery collection monitoring unit 101 can occupy the space above the connecting edge of the upper shell 201 without additionally increasing the maximum occupied space of the box 20, which is conducive to improving the energy density of the battery 100; on the other hand, the battery collection monitoring unit 101 is located outside the upper shell 201 as a whole, which is more convenient for maintenance.

[0114] In some embodiments, please refer to Figure 2 and Figure 6 The electrical connection component 10 includes a mounting piece 1021 and a high-voltage connector 1022 and / or a low-voltage connector 1023. The mounting piece 1021 includes a mounting body 1024 and a mounting portion 1025. The mounting portion 1025 is connected to the circumferential side wall of the mounting body 1024. The high-voltage connector 1022 and / or the low-voltage connector 1023 is arranged on the mounting body 1024. The mounting body 1024 is penetrated through the opening area 204, and the mounting portion 1025 is located inside the upper shell 201.

[0115] The mounting portion 1025 may be an annular mounting portion 1025 extending around the mounting body 1024, or a plurality of mounting portions 1025 may be provided, and the plurality of mounting portions 1025 may be spaced apart and arranged along the circumference of the mounting body 1024. The mounting body 1024 may be partially located outside the opening area 204, and the portion of the mounting body 1024 located outside the accommodating cavity 203 may also be completely located within the opening area 204. The mounting portion 1025 may be a mounting sheet metal part, which has high structural strength and good use effect.

[0116] By setting the mounting piece 1021 to install the high-voltage connector 1022 and / or the low-voltage connector 1023, the orientation of the plug interface of the high-voltage connector 1022 and / or the low-voltage connector 1023 can be adjusted by adjusting the inclination of the mounting surface of the mounting body 1024 for mounting the high-voltage connector 1022 and / or the low-voltage connector 1023 to meet different needs. Compared with directly setting the high-voltage connector 1022 and / or the low-voltage connector 1023 on the upper shell 201, forming mounting surfaces with different inclinations on the upper shell 201, the processing difficulty of the separate mounting piece 1021 is lower, and the molding difficulty of the upper shell 201 can also be reduced.

[0117] In addition, the high-voltage connector 1022 and the low-voltage connector 1023 are first set on the mounting member 1021 and then installed on the upper shell 201, which is beneficial to improve the efficiency of the box 20 assembly and reduce the difficulty of the box 20 assembly.

[0118] In some embodiments, the battery 100 further includes a fuse, which is disposed in the box 20 and opposite to the opening area 204 .

[0119] Specifically, a fuse is an electrical device used to protect electrical equipment and circuits from overload current or short-circuit current. A fuse includes a fuse element, which is a metal wire or metal sheet that is easy to melt. When the current exceeds the rated current of the fuse, the fuse will melt quickly, thereby cutting off the current and protecting the equipment and circuits from damage.

[0120] When the fuse element of the fuse is blown, the fuse needs to be replaced. The fuse is placed in the box 20 and opposite to the opening area 204, so that the fuse can be easily inspected and replaced without opening the upper shell 201. In order to make the operation more convenient when replacing the fuse, the area of ​​the opening area 204 can be set as large as possible, so that there is more operating space when replacing the fuse later.

[0121] In some embodiments, the electrical connection component 10 is sealed to the upper housing 201 via a seal 30 , and the seal 30 is disposed around the opening area 204 .

[0122] Specifically, the sealing member 30 may be a sealing gasket or a sealing layer formed by a sealant, and the sealing gasket may be a sealing ring extending around the opening area 204 (eg, Figure 4 and Figure 6 ), or, a plurality of sealing gaskets are provided, and the plurality of sealing gaskets are arranged in sequence around the circumference of the opening area 204.

[0123] By providing a seal 30 between the electrical connection component 10 and the upper shell 201, the seal 30 seals the gap between the electrical connection component 10 and the upper shell 201, thereby reducing the possibility of liquid and impurities entering the accommodating cavity 203 of the box body 20 through the opening area 204, and reducing the possibility of liquid, impurities, etc. affecting the use of the battery 100.

[0124] In some embodiments, please refer to Figure 4 and Figure 6 The upper shell 201 has a first sealing surface 2011, and the electrical connection component 10 has a second sealing surface 103. The first sealing surface 2011 and the second sealing surface 103 are both sealed with the seal 30. A limiting portion 301 is provided between the electrical connection component 10 and the upper shell 201 to separate the first sealing surface 2011 and the second sealing surface 103 by a set gap.

[0125] Specifically, the limiting portion 301 may be connected to the electrical connection component 10, or may be connected to the upper housing 201, or may not be connected to either the electrical connection component 10 or the upper housing 201, or the limiting portion 301 may be indirectly connected to the electrical connection component 10 or the upper housing 201. The limiting portion 301 may be an annular limiting member extending around the opening area 204, or may be a plurality of limiting blocks spaced apart and arranged around the opening area 204.

[0126] In the embodiment where the electrical connection component 10 includes a component body 1026 and a mounting portion 1025, the mounting portion 1025 is connected to the circumferential edge of the component body 1026, and the mounting portion 1025 is used to be connected to the upper housing 201, the second sealing surface 103 may coincide with the surface of the mounting portion 1025 facing the upper housing 201, or may not coincide with the surface of the mounting portion 1025 facing the upper housing 201. Correspondingly, the first sealing surface 2011 may coincide with the mounting area, or may not coincide with the mounting area.

[0127] In order to ensure that the electrical connection component 10 can be stably installed on the upper shell 201, it is usually necessary to press the electrical connection component 10 against the upper shell 201, by separating the first sealing surface 2011 and the second sealing surface 103 by a set gap, wherein the set gap is smaller than the initial thickness of the seal 30. In this way, when the electrical connection component 10 and the upper shell 201 are pressed and fixed, the seal 30 can be compressed to a thickness of the set gap size, so that there is good sealing between the first sealing surface 2011 and the seal 30, and between the second sealing surface 103 and the seal 30.

[0128] In some embodiments, please refer to Figure 6 The surfaces opposite to each other of the electrical connection component 10 and the upper shell 201 are the first sealing surface 2011 and the second sealing surface 103. The electrical connection component 10 and the upper shell 201 are connected by a connector 40 that penetrates the electrical connection component 10 and the upper shell 201. The connector 40 has a limiting portion 301, which abuts between the electrical connection component 10 and the upper shell 201 to separate the first sealing surface 2011 and the second sealing surface 103 by a set gap.

[0129] Specifically, the sealing member 30 has an escape hole for escaping the connecting member 40 and the limiting portion 301. Figure 6 As shown, the connecting member 40 may be a stud, and the limiting portion 301 may be an end portion of the stud with a larger diameter, or may be an additional component provided on the stud, for example, the limiting portion 301 is a limiting ring, and the limiting ring is sleeved on the bolt.

[0130] The connector 40 defines a limiting portion 301 , so that there is no need to provide the limiting portion 301 on the upper housing 201 and the electrical connection component 10 , which helps to reduce the structural complexity of the upper housing 201 and the electrical connection component 10 .

[0131] In some embodiments, reference may be made to Figure 7 As shown, Figure 7 This is a cross-sectional view of a battery collection monitoring unit 101 and a seal 30 provided in an embodiment of the utility model. One of the electrical connection component 10 and the upper shell 201 is provided with a groove 104, and the surface of the other of the electrical connection component 10 and the upper shell 201 facing the groove 104 and the groove bottom surface of the groove 104 define a first sealing surface 2011 and a second sealing surface 103, and the notch edge of the groove 104 defines a limiting portion 301 and abuts against the surface of the other of the electrical connection component 10 and the upper shell 201 facing the groove 104.

[0132] Specifically, the electrical connection component 10 and the upper shell 201 may also be respectively provided with a first groove and a second groove, the bottom surface of the first groove and the bottom surface of the second groove respectively define a first sealing surface 2011 and a second sealing surface 103, and the notch edge of the first groove and the notch edge of the second groove define a limiting portion 301 and abut against each other.

[0133] The groove 104 is provided to accommodate the sealing member 30 . During installation, the sealing member 30 can be directly placed in the groove 104 , which makes installation more convenient.

[0134] In some embodiments, please refer to Figures 4 to 6 ,in Figure 5 The upper shell 201 includes an upper shell body 2012 and a reinforcement member 2013. The upper shell body 2012 includes an installation area for connecting with the electrical connection component 10. The reinforcement member 2013 is used to reinforce the installation area.

[0135] like Figure 4 and Figure 5 As shown, the reinforcement member 2013 may include an annular reinforcement plate extending along the circumference of the electrical connection component 10; or Figure 6 As shown, the reinforcement member 2013 includes a plurality of sub-reinforcements, and the plurality of sub-reinforcements are arranged along the circumference of the electrical connection component 10; or the reinforcement member 2013 may also be a reinforcement rib at least partially disposed in the installation area.

[0136] In an embodiment where the upper shell 201 is made of a metal material such as a sheet metal, the reinforcing member 2013 may not be provided; in an embodiment where the upper shell 201 is made of a plastic material, a sheet metal may be provided as the reinforcing member 2013 .

[0137] In order to install the electrical connection component 10, some installation structures, such as installation holes, are provided in the installation area. Therefore, the structural strength of the portion of the upper shell 201 corresponding to the installation area is relatively low. Therefore, the installation area is strengthened by providing a reinforcement member 2013. On the one hand, the portion of the upper shell 201 corresponding to the installation area is less susceptible to damage; on the other hand, the installation of the electrical connection component 10 is more stable.

[0138] In some embodiments, the reinforcement member 2013 is disposed on a side of the installation region facing away from the electrical connection component 10 .

[0139] For example, Figure 3 As shown, the electrical connection component 10 is disposed as a whole on the outside of the upper shell 201 and connected to the outer surface of the upper shell 201, and the reinforcement member 2013 is disposed on the inner side of the upper shell 201. Figure 5 As shown, the portion of the electrical connection component 10 located on the inner side of the upper shell 201 is connected to the inner surface of the upper shell 201 , and the reinforcement member 2013 is arranged on the outer side of the upper shell 201 .

[0140] The reinforcing member 2013 is arranged on the side of the installation area facing away from the electrical connection component 10 , so that the installation area will be clamped between the electrical connection component 10 and the reinforcing member 2013 , which has a better reinforcement effect and will not affect the sealing effect of the sealing member 30 .

[0141] In some embodiments, Figure 4 and Figure 5 As shown, the reinforcement member 2013 includes an annular reinforcement plate extending along the circumference of the electrical connection component 10 .

[0142] For example, the annular reinforcement plate may be an annular stamped sheet metal part.

[0143] The installation area is reinforced by an annular reinforcement plate, and the reinforcement effect at various locations in the installation area is highly consistent, the structural strength is high, and the reinforcement effect is good.

[0144] In some embodiments, the reinforcement member 2013 includes a plurality of sub-reinforcements, and the plurality of sub-reinforcements are arranged along the circumference of the electrical connection component 10 .

[0145] For example, Figure 6 As shown, there are two sub-reinforcements, both of which are in contact with the installation area, and the two sub-reinforcements are arranged end to end. However, the present invention is not limited thereto, and there may also be three, four, five, and so on, sub-reinforcements.

[0146] The reinforcement 2013 includes a plurality of sub-reinforcements, so that the cost of the reinforcement 2013 is lower.

[0147] In some embodiments, the upper shell body 2012 has an opening area 204 , the electrical connection component 10 is covered in the opening area 204 , and the reinforcement member 2013 is arranged around the opening area 204 .

[0148] For example, the reinforcement member 2013 is an annular reinforcement member 2013 extending around the opening area 204. Alternatively, the reinforcement member 2013 includes a plurality of sub-reinforcements, and the plurality of sub-reinforcements are arranged along the circumference of the opening area 204.

[0149] The reinforcement member 2013 is arranged around the opening area 204 , so that the reinforcement member 2013 can reinforce the circumferential edge of the opening area 204 , which is beneficial to prevent the portion of the upper shell 201 where the opening area 204 is provided from being deformed or damaged.

[0150] In some embodiments, Figure 5 As shown, the edge of the reinforcement 2013 close to the opening area 204 is connected with the rib 60 ; or, the edge of the opening area 204 is connected with the rib 60 .

[0151] That is to say, the rib 60 can be arranged on the reinforcement 2013 or on the upper shell 201. The rib 60 can be an arc-shaped member, one side edge of the arc-shaped member is connected to the reinforcement 2013, and along the direction from one side edge of the arc-shaped member to the other side edge of the arc-shaped member, the rib 60 gradually approaches the electrical connection component 10; or, the rib 60 can also include a first and a second connected member, the first member is connected to the reinforcement 2013, the second member is at a set angle to the first member, and the connection between the first and the second members is rounded toward the opening area 204. Alternatively, the rib 60 includes a circular tubular member so that the wall surface of the rib 60 facing the opening area 204 is smooth and has no edges. The rib 60 can be arranged only at the edge of the reinforcement 2013 or the opening area 204 close to the wiring harness, for example Figure 5 As shown, it is arranged at the lower edge of the reinforcement member 2013; or, according to actual needs, the circumferential edges of the opening area 204 can also be provided with a retaining edge 60.

[0152] In the embodiment where the thickness of the reinforcement member 2013 is relatively thick or the thickness of the upper shell 201 is relatively thick, the retaining edge 60 may not be provided.

[0153] In the embodiment where the wire harness needs to pass through the opening area 204 , by providing a retaining edge 60 at the edge of the reinforcement 2013 or the opening area 204 , the retaining edge 60 can reduce the possibility of the wire harness being scratched by the edge corners of the reinforcement 2013 or the opening area 204 .

[0154] In some embodiments, the upper shell body 2012 is made of plastic or metal.

[0155] For example, the upper shell body 2012 may be made of ABS material, carbon fiber composite material, polycarbonate material, nylon material, etc. The upper shell body 2012 may be made of aluminum alloy material, stainless steel material, etc.

[0156] The upper shell body 2012 made of plastic material has lower molding difficulty, lower molding cost and lighter weight. The upper shell body 2012 made of metal material has better durability, higher mechanical strength and better high temperature resistance.

[0157] In some embodiments, Figure 4 As shown, the electrical connection component 10 is located outside the upper shell 201 , the reinforcement 2013 is located inside the upper shell 201 , and the battery 100 further includes a first pre-installed component 50 , through which the reinforcement 2013 is connected to the upper shell 201 .

[0158] More specifically, the first pre-installed component 50 is a screw, a bolt hole is provided on the reinforcement component 2013, the screw is threadedly connected to the bolt hole, and correspondingly, the sealing component 30 has an avoidance hole to avoid the first pre-installed component 50. Alternatively, the first pre-installed component 50 can also be a rubber strip to preliminarily fix the reinforcement component 2013 to the upper shell 201.

[0159] During assembly, the upper housing 201 is first placed on the lower housing 202, the reinforcing member 2013 is installed on the upper housing 201 through the first pre-installed member 50, and then the electrical connection component 10 and the wiring harness are connected, and then the electrical connection component 10, the upper housing 201 and the reinforcing member 2013 are connected through the connecting member 40. Therefore, it is necessary to use the first pre-installed member 50 to pre-install the reinforcing member 2013 on the upper housing 201, which is convenient for installation. At the same time, the reinforcing member 2013 is not easy to fall into the box body 20 during disassembly, and when the electrical connection component 10 is installed again, it is not necessary to install the reinforcing member 2013 again.

[0160] In some embodiments, the upper shell 201 includes an opening area 204, the electrical connection component 10 is inserted into the opening area 204, the reinforcement 2013 is located outside the upper shell 201, and the battery 100 also includes a second pre-installed component 1021, and the electrical connection component 10 is connected to the lower shell 202 through the second pre-installed component 1021.

[0161] The second pre-installed component 1021 may be a mounting bracket, a mounting plate, etc. fixed on the lower housing 202 .

[0162] It should be noted that in the embodiment where the electrical connection component 10 includes the high-voltage connector 1022, the wiring harness connected to the high-voltage connector 1022 is usually a hard and thick copper wire. If the upper housing 201 is first placed on the lower housing 202, and then the high-voltage connector 1022 and the wiring harness are connected, and finally the electrical connection component 10 is installed on the upper housing 201. During the process of installing the electrical connection component 10 on the upper housing 201, the position of the electrical connection component 10 is not easy to move and adjust, and the position of the wiring harness is also not easy to control.

[0163] Therefore, the present application sets a second pre-installed component 1021, and before the upper shell 201 is set on the lower shell 202, the electrical connection component 10 is fixed to the lower shell 202 through the second pre-installed component 1021, and then, the upper shell 201 is placed on the lower shell 202 and the electrical connection component 10 is passed through the opening area 204, and finally the electrical connection component 10 and the upper shell 201 are connected by the connecting component 40 to fix the electrical connection component 10 to the upper shell 201.

[0164] In some embodiments, Figures 2 to 4 , Figure 6 As shown, the electrical connection component 10 is mounted on the circumferential side wall of the upper housing 201 , and the circumferential side wall of the upper housing 201 is inclined outwardly from top to bottom.

[0165] In the embodiment where multiple electrical connection components 10 are provided, the multiple electrical connection components 10 may be provided on one side wall of the upper shell 201 in the circumferential direction, or may be provided on multiple side walls of the upper shell 201 in the circumferential direction.

[0166] In the embodiment where the upper shell 201 is made of plastic, the circumferential side wall of the upper shell 201 is inclined outward from top to bottom, so that it is easy to demould during injection molding.

[0167] In an embodiment in which the electrical connection component 10 is installed on the circumferential side wall of the upper shell 201, the circumferential side wall of the upper shell 201 is inclined outward from top to bottom, and the reinforcement 2013 is arranged inside the box body 20, and the electrical connection component 10 is arranged outside the box body 20, the reinforcement 2013 is connected to the upper shell 201 through the first pre-installed component 50, so that the reinforcement 2013 is not easy to fall into the box body 20.

[0168] In some embodiments, Figures 2 to 4 , Figure 6 As shown, the electrical connection component 10 includes a component body 1026 and a mounting portion 1025, the mounting portion 1025 is connected to the circumferential side wall of the component body 1026, the upper shell 201 has a mounting area, the mounting area is arranged opposite to and connected to the mounting portion 1025, and the battery 100 also includes a connector 40, the connector 40 is passed through the mounting area and the mounting portion 1025 to connect the upper shell 201 and the electrical connection component 10.

[0169] Specifically, in the embodiment where the installation area coincides with the first sealing surface 2011, the sealing member 30 has an escape hole for escaping the connecting member 40. The connecting member 40 may be a bolt connecting member or a clamping member. The connecting member 40 may be detachably connected to at least one of the electrical connecting member 10 and the upper housing 201, or may be fixedly connected to both the electrical connecting member 10 and the upper housing 201.

[0170] The upper shell 201 and the electrical connection component 10 are connected by a connection piece 40 that penetrates the mounting area and the mounting portion 1025 , so that the connection is more stable and is not easy to be separated.

[0171] In some embodiments, reference may be made to Figure 4 and Figure 6 The connector 40 includes a fixed portion 401 and a movable portion 402, and the fixed portion 401 and the movable portion 402 are detachably connected, wherein the upper shell 201 has an opening area 204, the component body 1026 is passed through the opening area 204, and the mounting portion 1025 is located in the upper shell 201 and connected to the fixed portion 401; and / or, the electrical connection component 10 is located as a whole outside the upper shell 201, and the fixed portion 401 is connected to the upper shell 201.

[0172] It should be noted that, in the embodiment where the mounting portion 1025 is located inside the upper housing 201 and the mounting portion 1025 is fixedly connected to the fixing portion 401, the fixing portion 401 is not removable relative to the mounting portion 1025. In the embodiment where the electrical connection component 10 is located outside the upper housing 201 as a whole, the fixing portion 401 is not removable relative to the upper housing 201. In the embodiment where the upper housing 201 includes an upper shell body 2012 and a reinforcing member 2013, and the electrical connection component 10 is located outside the upper housing 201 as a whole, the fixing portion 401 is connected to the reinforcing member 2013.

[0173] The fixing portion 401 may be a stud, a bolt, a nut, or a threaded hole provided on the mounting portion 1025 or the upper shell 201 , and correspondingly, the movable portion 402 is a bolt, a nut, a stud or a bolt.

[0174] For example Figure 4 As shown, the electrical connection component 10 is located as a whole on the outside of the upper shell 201, and the upper shell 201 includes an upper shell body 2012 and a reinforcement 2013. The reinforcement 2013 is arranged on the inner side of the upper shell body 2012, the fixed part 401 is a rivet screw, and the movable part 402 is a nut. The fixed part 401 and the reinforcement 2013 are riveted together, and the rivet studs are passed through the upper shell body 2012, the sealing part 30, and the mounting part 1025 are connected with the nut, wherein the avoidance hole on the upper shell body 2012 for passing the rivet screw is a circular hole.

[0175] For example Figure 6As shown, the upper shell 201 has an opening area 204, the component body 1026 is penetrated in the opening area 204, the mounting portion 1025 is located in the upper shell 201, the upper shell 201 includes an upper shell body 2012 and a reinforcement 2013, the reinforcement 2013 is located on the outside of the upper shell body 2012, the fixing portion 401 is a riveted stud, the riveted stud is riveted to the mounting portion 1025, the end of the riveted stud is penetrated in the sealing member 30 and the upper shell body 2012 and is against the reinforcement 2013, the fixing bolt passes through the reinforcement 2013 and is threadedly connected with the riveted stud, wherein the avoidance hole on the upper shell body 2012 for penetrating the riveted stud is a square hole.

[0176] That is, the upper shell 201 and the inner one of the mounting portion 1025 are connected to the fixing portion 401 , so that the fixing portion 401 is not easy to fall into the accommodating cavity 203 .

[0177] In some embodiments, reference may be made to Figure 4 and Figure 6 The mounting portion 1025 extends in a ring shape along the circumference of the component body 1026 .

[0178] That is, the component body 1026 is connected to the upper shell 201 through the annular mounting portion 1025, and the connection stability is better. In addition, when the second sealing surface 103 is the surface of the mounting portion 1025 facing the upper shell 201, the annular mounting portion 1025 is also conducive to uniformly pressing the sealing member 30 to achieve good sealing.

[0179] In some embodiments, reference may be made to Figure 4 and Figure 6 There are multiple connectors 40, and the multiple connectors 40 are arranged at intervals along the circumference of the component body 1026, and the distance between adjacent connectors 40 is less than or equal to 70 mm.

[0180] For example, the distance between adjacent connecting members 40 may be 70 mm, 60 mm, 50 mm, 40 mm, or any value between any two of these values.

[0181] In this way, the connection between the upper shell 201 and the electrical connection component 10 is more stable, and the problem of the connector 40 being separated from the upper shell 201 and the electrical connection component 10 is not likely to occur during long-term use.

[0182] In an embodiment in which a seal 30 is provided between the electrical connection component 10 and the upper shell 201 and the first sealing surface 2011 coincides with the installation area, there are a plurality of connectors 40, and the plurality of connectors 40 are arranged at intervals along the circumference of the component body 1026, and a distance between adjacent connectors 40 is less than or equal to 70 mm. In this way, multiple locations of the seal can be well pressed against the first sealing surface 2011 and the second sealing surface 103, resulting in a better sealing effect.

[0183] like Figure 8 As shown, Figure 8 A schematic diagram of the structure of an energy storage device 2000 provided in some embodiments of the present application. The energy storage device 2000 according to the second aspect of the present invention comprises the battery 100 according to the first aspect of the present invention.

[0184] The electric device 1000 according to the third embodiment of the utility model comprises the battery 100 according to the first embodiment of the utility model, and the battery 100 is used to provide electric energy for the electric device 1000. Therefore, by using the above battery 100, it is helpful to increase the service life of the electric device 1000 or reduce the size of the electric device 1000.

[0185] Alternatively, if Figure 1 As shown, when the battery 100 is used in a vehicle, the battery 100 can be arranged at the bottom, head, or tail of the vehicle. The battery 100 can be used to power the vehicle, for example, the battery 100 can be used as an operating power source for the vehicle. The vehicle can also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating, and driving the vehicle.

[0186] A battery 100 and a vehicle having the same according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.

[0187] Please refer to Figure 1 The battery 100 is provided in the vehicle and is used for powering the vehicle.

[0188] In the related art, the battery data acquisition monitoring unit is mainly placed inside the battery box, which is inconvenient to maintain; the battery data acquisition monitoring unit installed inside the battery box mostly requires an additional fixing bracket, which is complex in structure and occupies a large space. Figures 2 to 4 The utility model provides an external fixing structure of a battery collection monitoring unit 101, which is fixed to the upper shell 201 of the battery 100 by a reinforcing member 2013, and fixes the battery collection monitoring unit 101 to the upper shell 201 of the battery 100 through a nut, and adds a sealing ring to achieve sealing. Under the premise of ensuring the fixing strength, the space utilization rate of the battery 100 and the maintenance convenience of the battery collection monitoring unit 101 are improved.

[0189] More specifically, the reinforcement 2013 is provided with a plurality of screw fixing holes, and riveted studs are pressed on the reinforcement 2013. The number and position of the riveted studs correspond to the fixing holes on the battery collection and monitoring unit 101. The upper shell 201 has avoidance holes to avoid the riveted studs and screws. The reinforcement 2013 is pre-fixed to the upper shell 201 by screws. A sealing ring is arranged between the battery collection and monitoring unit 101 and the upper shell 201. The sealing ring is used to seal the gap between the battery collection and monitoring unit 101 and the upper shell 201, so that the battery collection and monitoring unit 101 can be externally locked on the box 20 of the battery 100.

[0190] The battery 100 includes a reinforcement 2013, a box 20, screws, riveted studs, a sealing ring, a battery collection monitoring unit 101 and nuts. The box 20 includes an upper shell 201 and a lower shell 202. The reinforcement 2013 is riveted with a plurality of riveted studs on the circumferential edge. The number and position of the riveted studs correspond to the number and position of the fixing holes on the battery collection monitoring unit 101. At the same time, the reinforcement 2013 is also provided with a plurality of screw fixing holes, and the screw fixing holes are provided with threads. Avoidance holes are respectively provided on the box 20 at the positions corresponding to the studs and screw fixing holes. When the reinforcement 2013 is installed, the studs pass through the upper shell 201 from the inside to the outside, and the screws pass through the avoidance holes to fix the reinforcement 2013 on the upper shell 201. The sealing ring is also provided with riveted stud avoidance holes and screw avoidance holes. The sealing ring is provided on the battery collection monitoring unit 101. The battery collection monitoring unit 101 equipped with a sealing ring is fixed to the upper housing 201 by nuts and riveting studs while pressing the sealing ring, thereby finally achieving the fixation and sealing of the battery collection monitoring unit 101.

[0191] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0192] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery, characterized in that: include: Electrical connection components; The box body comprises an upper shell and a lower shell, the upper shell cover is arranged on the lower shell and cooperates with the lower shell to define an accommodating cavity for accommodating a battery cell, and the electrical connection component is arranged on the upper shell.

2. The battery according to claim 1, characterized in that The electrical connection component includes a monitoring unit and / or a connector.

3. The battery according to claim 2, characterized in that The monitoring unit includes a battery collection monitoring unit; and / or the connector includes a mounting piece and a high-voltage connector and / or a low-voltage connector provided on the mounting piece.

4. The battery according to claim 1, characterized in that The upper shell has an opening area, the electrical connection component is covered in the opening area, the electrical connection component is at least partially located outside the upper shell, and the electrical connection component is connected to the internal components of the box.

5. The battery according to claim 4, characterized in that The electrical connection component includes a battery collection and monitoring unit, and the battery collection and monitoring unit is entirely located outside the upper shell.

6. The battery according to claim 4, characterized in that The electrical connection component includes a mounting piece and a high-voltage connector and / or a low-voltage connector. The mounting piece includes a mounting body and a mounting portion. The mounting portion is connected to the circumferential side wall of the mounting body. The high-voltage connector and / or the low-voltage connector is arranged on the mounting body. The mounting body passes through the opening area, and the mounting portion is located inside the upper shell.

7. The battery according to claim 4, characterized in that A fuse is also included, and the fuse is arranged in the box and opposite to the opening area.

8. The battery according to claim 4, characterized in that The electrical connection component is sealed and connected to the upper shell through a sealing member, and the sealing member is arranged around the opening area.

9. The battery according to claim 8, characterized in that The upper shell has a first sealing surface, and the electrical connection component has a second sealing surface. Both the first sealing surface and the second sealing surface are sealed with the seal. A limiting portion is provided between the electrical connection component and the upper shell to separate the first sealing surface and the second sealing surface by a set gap.

10. The battery according to claim 9, characterized in that The surfaces opposite to each other of the electrical connection component and the upper shell are the first sealing surface and the second sealing surface. The electrical connection component and the upper shell are connected by a connecting piece penetrating the electrical connection component and the upper shell. The connecting piece has the limiting portion, and the limiting portion abuts between the electrical connection component and the upper shell so that the first sealing surface and the second sealing surface are separated by a set gap.

11. The battery according to claim 9, characterized in that One of the electrical connection component and the upper shell is provided with a groove, and the surface of the other of the electrical connection component and the upper shell facing the groove and the bottom surface of the groove define the first sealing surface and the second sealing surface, and the notch edge of the groove defines the limiting portion and abuts against the surface of the other of the electrical connection component and the upper shell facing the groove.

12. The battery according to any one of claims 1 to 11, characterized in that: The upper shell includes an upper shell body and a reinforcement member. The upper shell body includes an installation area. The installation area is used to connect with the electrical connection component. The reinforcement member is used to reinforce the installation area.

13. The battery according to claim 12, characterized in that The reinforcement member is arranged on a side of the installation area facing away from the electrical connection component.

14. The battery according to claim 12, characterized in that The reinforcement member includes an annular reinforcement plate extending along the circumference of the electrical connection component; or, the reinforcement member includes a plurality of sub-reinforcements, and the plurality of sub-reinforcements are arranged along the circumference of the electrical connection component.

15. The battery according to claim 12, characterized in that The upper shell body has an opening area, and the reinforcement is arranged around the opening area.

16. The battery according to claim 15, characterized in that The edge of the reinforcement member close to the opening area is connected with a rib; or the edge of the opening area is connected with a rib.

17. The battery according to claim 12, characterized in that The upper shell body is made of plastic or metal.

18. The battery according to claim 12, characterized in that The electrical connection component is located outside the upper shell, the reinforcement is located inside the upper shell, the battery also includes a first pre-installed component, and the reinforcement is connected to the upper shell through the first pre-installed component; or, the upper shell includes an opening area, the electrical connection component is passed through the opening area, the reinforcement is located outside the upper shell, and the battery also includes a second pre-installed component, and the electrical connection component is connected to the lower shell through the second pre-installed component.

19. The battery according to any one of claims 1 to 11, characterized in that: The electrical connection component is mounted on a circumferential side wall of the upper shell, and the circumferential side wall of the upper shell is inclined outwardly from top to bottom.

20. The battery according to any one of claims 1 to 11, characterized in that: The electrical connection component includes a component body and a mounting portion, wherein the mounting portion is connected to the circumferential side wall of the component body, the upper shell has a mounting area, and the mounting area is arranged opposite to and connected to the mounting portion. The battery also includes a connector, which is passed through the mounting area and the mounting portion to connect the upper shell and the electrical connection component.

21. The battery according to claim 20, characterized in that The connecting member includes a fixed portion and a movable portion, and the fixed portion and the movable portion are detachably connected to each other, wherein: The upper shell has an opening area, the component body is arranged through the opening area, and the mounting portion is located in the upper shell and connected to the fixing portion; or, The electrical connection component is entirely located outside the upper shell, and the fixing portion is connected to the upper shell.

22. The battery according to claim 20, characterized in that The mounting portion extends in a ring shape along the circumferential direction of the component body.

23. The battery according to claim 20, characterized in that There are a plurality of the connecting members, and the connecting members are arranged at intervals along the circumference of the component body, and a distance between adjacent connecting members is less than or equal to 70 mm.

24. An energy storage device, wherein: Comprising a battery as claimed in any one of claims 1 to 23.

25. An electrical device, wherein: The invention comprises a battery as claimed in any one of claims 1 to 23, wherein the battery is used to provide electrical energy to the electrical device.

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