CN221081838U - Assembled structure, battery management system and power utilization device - Google Patents

Abstract

The application discloses an assembly structure, a battery management system and an electric device, and relates to the technical field of battery assembly. The assembly structure is used for fixing a product and comprises a lower shell, an upper shell and a buffer piece; the lower shell is provided with a supporting structure; the upper shell is provided with a pressing structure, the pressing structure is arranged opposite to the supporting structure, and the upper shell cover is arranged on the lower shell and is enclosed with the lower shell to form an installation cavity; the buffer piece is arranged in the mounting cavity and fixed on the pressing structure, the product is mounted between the supporting structure and the pressing structure, the buffer piece is at least partially arranged between the pressing structure and the product, and the pressing structure presses the product on the supporting structure through the buffer piece. According to the technical scheme, the shaking condition of the product in the shell can be improved, so that risks of shaking the product on functions and reliability of the product are reduced.

Description

Assembled structure, battery management system and power utilization device

Technical Field

The present application relates to battery assembly, and more particularly to an assembly structure, a battery management system, and an electric device.

Background

In assembling the housing with the product, the product needs to be fixed within the housing. In the related art, a support column is generally arranged on a lower shell of a shell, and a triangular rib is arranged on an upper shell of the shell, so that a product is directly pressed and fixed on the support column through the triangular rib, a certain dimensional tolerance exists in the shell produced according to material characteristics and processing capacity, the tolerance can cause the product to shake up and down and left and right in the shell after assembly, and a great risk exists for the function and reliability of the product.

Disclosure of utility model

In view of the above, the present application provides an assembly structure, which aims to improve the shaking condition of a product in a housing, so as to reduce the risk of shaking the product on the function and reliability of the product.

The application provides an assembly structure for fixing a product, which comprises a lower shell, an upper shell and a buffer piece, wherein the lower shell is provided with a plurality of grooves; the lower shell is provided with a supporting structure; the upper shell is provided with a pressing structure, the pressing structure is arranged opposite to the supporting structure, and the upper shell cover is arranged on the lower shell and is enclosed with the lower shell to form an installation cavity; the buffer piece is arranged in the mounting cavity and fixed on the pressing structure, the product is mounted between the supporting structure and the pressing structure, the buffer piece is at least partially arranged between the pressing structure and the product, and the pressing structure presses the product on the supporting structure through the buffer piece.

According to the technical scheme, when the product is fixed, the product can be arranged between the supporting structure and the pressing structure, and the buffer piece is arranged between the pressing structure and the product, so that the pressing structure can press the product on the supporting structure through the buffer piece, the buffer piece can buffer the product to play a role in eliminating component combination tolerance and limiting and buffering the product in the assembly process, and therefore the shaking condition of the product in the shell can be improved, and risks of the shaking of the product on functions and reliability of the product are reduced.

In some embodiments, the pressing structure is a fixing column, the fixing column is provided with a fixing hole, and the buffer part is partially embedded in the fixing hole. By the design, in the assembling process, the buffer part can be partially embedded in the fixing hole of the pressing structure, and the buffer part can be fixed.

In some embodiments, the bumper includes a bumper section and a stationary section; the buffer section is arranged on one side of the fixed column, which is close to the supporting structure, and the fixed column presses the product on the supporting structure through the buffer section; the fixed section is connected to one side of the buffer section, which is far away from the supporting structure, and is embedded in the fixed hole. By means of the design, in the assembling process, the fixing section of the buffer piece can be embedded into the fixing hole from one side, close to the supporting structure, of the fixing hole, and therefore the buffer piece can be embedded and fixed conveniently.

In some embodiments, the fixed segment includes a first segment and a second segment; the first section is connected to one side of the buffer section, which is far away from the supporting structure, and the outer diameter of the first section is smaller than the inner diameter of the fixing hole; the second section is connected to one side of the first section far away from the buffer section, and the outer diameter of the second section is larger than the inner diameter of the fixing hole. By means of the design, the outer diameter of the first section is smaller than the inner diameter of the fixing hole, the fixing section is more convenient to embed in the fixing hole, and the outer diameter of the second section is larger than the inner diameter of the fixing hole, so that the fixing section can be better fixed in the fixing hole under interference fit of the second section and the fixing hole, and the reliability of the buffer piece fixed on the pressing structure is improved.

In some embodiments, the outer diameter of the first section gradually decreases in the direction from the second section to the first section. By means of the design, the gap between one side, close to the buffer section, of the first section and the fixing hole is large, deformation can occur when the buffer section plays a role in buffering, and the gap can provide deformation space for the buffer section, so that the buffer section is better in buffering force on a product.

In some embodiments, the side of the fixed section remote from the buffer section is provided with a deformation hole. The design is that in the process of embedding the fixed section into the fixed hole, the fixed section can be extruded by external force, and the deformation of the fixed section can be released by the design of the deformation hole, so that the space for deformation of the fixed section is provided, and the fixed section is better embedded into the fixed hole.

In some embodiments, a first guide surface is provided on an outer edge of a side of the fixed section away from the buffer section. By means of the design, the first guide surface is arranged to enable the fixing section to be embedded into the fixing hole more conveniently.

In some embodiments, the product is provided with a locating hole, and the support structure comprises a support column and a locating boss; the pressing structure presses the product on the end face of the support column, which is close to the buffer piece, through the buffer piece; the positioning boss is arranged on the support column and protrudes out of the end face of the support column, which is close to the buffer piece, and the positioning boss is inserted into the positioning hole. According to the design, the positioning boss is arranged on the support column, so that the support column and the positioning boss are combined, the support structure can play a role in supporting a product through the support column, and can play a role in positioning the product through the cooperation of the positioning boss and the positioning hole, so that the shaking space of the product in the X/Y direction is limited, the shaking condition of the product can be further improved, and the product is stably fixed in the installation cavity.

In some embodiments, the positioning boss is provided in the middle of the end face of the support post near the bumper. By the aid of the design, the structural design of the positioning boss and the supporting column is more compact, occupied space of the supporting structure is reduced, and larger installation space can be provided for other parts.

In some embodiments, a second guide surface is provided on the outer edge of the side of the positioning boss away from the support column. By means of the design, the second guide surface can be arranged more conveniently, and the positioning boss can be inserted into the positioning hole of the product.

In some embodiments, the buffer is a silicone pad. By adopting the design, the silica gel pad is used as the buffer piece, and the buffer piece has better buffer capacity due to better characteristics of tension, flexibility, insulativity, pressure resistance and the like of the silica gel pad, so that the clearance problem after combination caused by the self tolerance problem between a product and the upper shell and the lower shell is effectively improved.

In some embodiments, one of the lower shell and the upper shell is provided with a buckle, and the other is provided with a clamping groove, and the buckle is matched with the clamping groove in a clamping way. By adopting the design, the connection between the lower shell and the upper shell is realized through the clamping fit of the clamping buckle and the clamping groove, so that the connection reliability between the upper shell and the lower shell can be improved, and the disassembly and assembly between the upper shell and the lower shell can be conveniently realized.

The application also provides a battery management system, which comprises the assembly structure of the embodiment.

The application also provides an electric device, which comprises the battery management system of the embodiment.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the technical means thereof may be more clearly understood, and in order that the other objects, features and advantages of the present application may be more readily understood, the following detailed description of the application.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of an electrical device according to the present application;

FIG. 2 is a schematic diagram of an exploded view of one embodiment of a battery in an electrical device according to the present application;

FIG. 3 is a cross-sectional view of one embodiment of an assembled structure of the present application;

FIG. 4 is a schematic view of a buffer member according to an embodiment of the assembled structure of the present application;

FIG. 5 is a cross-sectional view of a cushioning member according to an embodiment of the present application;

FIG. 6 is a schematic view of an upper shell according to an embodiment of the assembled structure of the present application;

fig. 7 is a schematic structural view of the lower shell in an embodiment of the assembled structure of the present application.

Reference numerals illustrate:

The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present 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 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.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein 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 embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "plurality" 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 the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, rather than indicating or implying that the apparatus or component to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two components or interaction relationship between the two components. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

The assembly structure provided by the embodiment of the application can be applied to a battery management system, wherein the battery management system is an important tie for connecting a battery and a vehicle, and the accurate control and management of the battery can be used for perfect application of the battery for protecting the driving.

The batteries mentioned in the art can be classified into disposable batteries and rechargeable batteries according to whether they are rechargeable or not. The types of rechargeable batteries that are currently common are: lead acid batteries, nickel hydrogen batteries, and lithium ion batteries. The lithium ion battery is widely applied to pure electric vehicles and hybrid electric vehicles at present, and the capacity of the lithium ion battery used for the application is slightly lower, but the lithium ion battery has larger output and charging current, longer service life and higher cost.

The battery described in the embodiments of the present application refers to a rechargeable battery. Hereinafter, the disclosed embodiments of the present application will be mainly described by taking a lithium ion battery as an example. It should be appreciated that the disclosed embodiments are applicable to any other suitable type of rechargeable battery. The batteries according to the embodiments disclosed in the present application may be directly or indirectly used in a suitable device to power the device.

Reference to a battery in the presently disclosed embodiments refers to a single physical module that includes one or more battery cells to provide a predetermined voltage and capacity. The battery cells are basic units in the battery, and can be generally divided into: cylindrical battery cells, cuboid battery cells and soft package battery cells. Hereinafter, it will be mainly developed around the rectangular parallelepiped battery cells. It should be understood that the embodiments described hereinafter are also applicable in certain respects to cylindrical battery cells or pouch battery cells.

The battery cell comprises a positive pole piece, a negative pole piece, electrolyte and a separation film. The lithium ion battery cell mainly relies on movement of lithium ions between the positive electrode sheet and the negative electrode sheet. The film structure of the three-layered material in the cylindrical battery cell is wound into a cylindrical shape of the electrode assembly, and the film structure is wound or stacked into an electrode assembly having a substantially rectangular parallelepiped shape in the rectangular battery cell.

In a typical cell structure, the cell includes a housing, an electrode assembly, and an electrolyte. An electrode assembly is received in the case of the battery cell, the electrode assembly including a positive electrode tab, a negative electrode tab, and a separator. The housing includes a housing and an end cap. The housing includes a receiving cavity formed by a plurality of walls and an opening. An end cap is disposed at the opening to close the receiving cavity. In addition to the electrode assembly, an electrolyte is contained in the containing chamber. The positive electrode sheet and the negative electrode sheet in the electrode assembly include tabs. In order to prevent the positive electrode tabs from being fused by a large current, the positive electrode tabs are stacked in a plurality. The tab is electrically connected with electrode terminals, which are located outside the battery cell, through a connection member, and the electrode terminals generally include a positive electrode terminal and a negative electrode terminal. For rectangular parallelepiped battery cells, electrode terminals are typically provided at the end cap portions. A plurality of battery cells are connected in series and/or parallel via electrode terminals for use in various applications.

In some high power applications, such as electric vehicles, the application of batteries includes three levels: battery cell, battery module, and battery. The battery module is formed by electrically connecting a certain number of battery cells together and putting the same into one frame in order to protect the battery cells from external impact, heat, vibration, etc. The battery refers to the final state of the battery system incorporated into the electric vehicle. The battery generally includes a case for enclosing one or more battery cells.

In recent years, new energy automobiles have been developed dramatically, and in the field of electric automobiles, a power battery plays an important role as a power source of the electric automobile. The battery is composed of a box body and a plurality of battery monomers accommodated in the box body. The battery is used as a core part of a new energy automobile, and has high requirements in terms of safety. Currently, the mechanical safety of power cells during use is one of the battery safety issues of general concern to consumers.

The battery is a power source which can be an electric device. The electric device may be a cellular phone, a portable device, a notebook computer, a battery car, an electric car, a ship, a spacecraft, an electric toy, an electric tool, and the like, for example, a spacecraft including an airplane, a rocket, a space plane, and a spacecraft, and the like, an electric toy including a fixed or mobile electric toy, for example, a game machine, an electric car toy, an electric ship toy, and an electric airplane toy, and the like, and an electric tool including a metal cutting electric tool, a grinding electric tool, an assembling electric tool, and a railway electric tool, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator, and an electric planer.

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

For example, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present application, where the vehicle 1000 may be a fuel-oil vehicle, a gas-oil 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. The battery 100, the controller 200, and the motor 300 may be provided inside the vehicle 1000, and the controller 200 is used to control the battery 100 to supply power to the motor 300. For example, the battery 100 may be provided at the bottom or the head or 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 circuitry of vehicle 1000, for example, for operating power requirements during start-up, navigation, and operation of vehicle 1000. In another embodiment 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.

For example, referring to fig. 2, fig. 2 is an exploded view of a battery 100 according to some embodiments of the present application. The battery 100 includes a case 20 and a battery cell 30, the case 20 having an accommodating space for accommodating the battery cell 30. The case 20 may have various structures. In some embodiments, the case 20 may include a first portion 20a and a second portion 20b, the first portion 20a and the second portion 20b being overlapped with each other, the first portion 20a and the second portion 20b together defining a receiving space for receiving the battery cell 30. The second portion 20b may be a hollow structure with one end opened, the first portion 20a may be a plate-shaped structure, and the first portion 20a covers the open side of the second portion 20b, so that the first portion 20a and the second portion 20b together define an accommodating space; the first portion 20a and the second portion 20b may be hollow structures with one side open, and the open side of the first portion 20a is closed to the open side of the second portion 20 b. Of course, the case 20 formed by the first portion 20a and the second portion 20b may be of various shapes, such as a cylinder, a rectangular parallelepiped, etc.

In the battery 100, the number of the battery cells 30 may be one or more. When the battery 100 has a plurality of battery cells 30, the plurality of battery cells 30 may be connected in series or parallel or in series-parallel, and series-parallel refers to that the plurality of battery cells 30 are connected in both series and parallel. The plurality of battery cells 30 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 30 is accommodated in the box body 20; of course, the battery 100 may also be a battery module formed by connecting a plurality of battery cells 30 in series or parallel or series-parallel connection, and then connecting a plurality of battery modules in series or parallel or series-parallel connection to form a whole and be accommodated in the case 20. The battery 100 may also include other structures, for example, the battery 100 may also include a bus bar component for making electrical connection between the plurality of battery cells 30, such as parallel or series-parallel. Specifically, the bus member may realize electrical connection between the battery cells 30 by connecting electrode terminals of the battery cells 30. Further, the bus member may be fixed to the electrode terminals of the battery cells 30 by welding. The electrical energy of the plurality of battery cells 30 may be further drawn through the housing 20 by a conductive mechanism. Alternatively, the conductive means may also belong to the bus bar member.

Wherein each battery cell 30 may be a secondary battery or a primary battery; but not limited to, lithium sulfur batteries, sodium ion batteries, or magnesium ion batteries. The battery cell 30 may be in the shape of a cylinder, a flat body, a rectangular parallelepiped, or other shapes, etc.

The battery management system is an important tie connecting the battery and the vehicle, and it is necessary to fix the product in the case when assembling the case of the battery management system with the product. In the related art, a support column is generally arranged on a lower shell of a shell, and a triangular rib is arranged on an upper shell of the shell, so that a product is directly pressed and fixed on the support column through the triangular rib, a certain dimensional tolerance exists in the shell produced according to material characteristics and processing capacity, the tolerance can cause the product to shake up and down and left and right in the shell after assembly, and a great risk exists for the function and reliability of the product.

Based on the above problems, the present application proposes an assembly structure 10 for fixing a product 40, referring to fig. 3 to 7 in combination, the assembly structure 10 includes a lower case 11, an upper case 12, and a buffer 13; the lower shell 11 is provided with a support structure 111; the upper shell 12 is provided with a pressing structure 121, the pressing structure 121 is opposite to the supporting structure 111, the upper shell 12 is covered on the lower shell 11, and an installation cavity is formed by surrounding the upper shell 12 and the lower shell 11; the buffer member 13 is disposed in the mounting cavity and fixed to the pressing structure 121, the product 40 is mounted between the supporting structure 111 and the pressing structure 121, the buffer member 13 is at least partially disposed between the pressing structure 121 and the product 40, and the pressing structure 121 presses the product 40 to the supporting structure 111 through the buffer member 13.

In this embodiment, the upper shell 12 is covered on the lower shell 11 to form a shell, wherein the upper shell 12 and the lower shell 11 can be connected by clamping, screw connection, bonding, etc. to improve the connection reliability between the upper shell 12 and the lower shell 11.

In this embodiment, the fixing manner of the buffer member 13 is illustrated, it can be understood that the buffer member 13 may be embedded in the pressing structure 121, or the buffer member 13 may be fixed on the pressing structure 121 by using a connecting member such as a screw, so long as the buffer member 13 can be fixedly installed on the pressing structure 121, so as to improve the installation reliability of the buffer member 13.

The product 40 for securing to the assembled structure 10 in this embodiment may be a circuit board (PCBA).

The supporting structure 111 for supporting the product 40 in this embodiment may specifically have only a supporting function, or may have both supporting and positioning functions for the product 40.

In the technical scheme of the embodiment of the application, when the product 40 is fixed, the product 40 can be arranged between the supporting structure 111 and the pressing structure 121, and as the buffer piece 13 is arranged between the pressing structure 121 and the product 40, the pressing structure 121 can press the product 40 on the supporting structure 111 through the buffer piece 13, and the buffer piece 13 can buffer the product 40 to eliminate component combination tolerance and limit and buffer the product 40 in the assembly process, so that the shaking condition of the product 40 in the shell can be improved, and the risks of the shaking of the product 40 on the functions and reliability of the product 40 can be reduced.

In an embodiment of the application, referring to fig. 3 to 6, the pressing structure 121 is a fixing column, the fixing column is provided with a fixing hole 121a, and the buffer member 13 is partially embedded in the fixing hole 121 a.

The fixing hole 121a for embedding the buffer 13 in the present embodiment may be a circular hole, or may be a hole having a triangular shape, a rectangular shape, or the like, so long as the shape of the fixing hole 121a matches the shape of the buffer 13, and is not specifically limited herein.

In this design, during the assembly process, the buffer member 13 can be directly embedded in the fixing hole 121a of the pressing structure 121, so that the buffer member 13 can be fixed.

In an embodiment of the present application, referring to fig. 3 to 6 in combination, the buffer member 13 includes a buffer section 131 and a fixing section 132; the buffer section 131 is arranged on one side of the fixed column close to the supporting structure 111, and the fixed column presses the product 40 on the supporting structure 111 through the buffer section 131; the fixing section 132 is connected to a side of the buffer section 131 away from the supporting structure 111, and is embedded in the fixing hole 121 a.

In some embodiments, the buffer segment 131 and the fixing segment 132 may be integrally formed, so that not only the connection reliability between the buffer segment 131 and the fixing segment 132 can be improved, but also the manufacturing process can be simplified.

In this design, the fixing section 132 of the buffer member 13 can be embedded into the fixing hole 121a from the side of the fixing hole 121a close to the supporting structure 111 during the assembly process, so that the embedding and fixing of the buffer member 13 are more convenient.

In one embodiment of the present application, referring to fig. 3-5 in combination, the stationary segment 132 includes a first segment 1321 and a second segment 1322; the first section 1321 is connected to a side of the buffer section 131 away from the support structure 111, and an outer diameter of the first section 1321 is smaller than an inner diameter of the fixing hole 121 a; the second section 1322 is connected to a side of the first section 1321 away from the buffer section 131, and an outer diameter of the second section 1322 is larger than an inner diameter of the fixing hole 121 a.

By such a design, the outer diameter of the first segment 1321 is smaller than the inner diameter of the fixing hole 121a, so that the fixing segment 132 is more convenient to be embedded in the fixing hole 121a, and the outer diameter of the second segment 1322 is larger than the inner diameter of the fixing hole 121a, so that the fixing segment 132 can be better positioned in the fixing hole 121a under the interference fit of the second segment 1322 and the fixing hole 121a, so as to improve the reliability of fixing the buffer member 13 on the pressing structure 121.

In an embodiment of the present application, referring to fig. 3 to 5 in combination, the outer diameter of the first segment 1321 gradually decreases in the direction from the second segment 1322 to the first segment 1321.

By adopting the design, the gap between one side of the first section 1321, which is close to the buffer section 131, and the fixing hole 121a is larger, deformation can occur when the buffer section 131 plays a role in buffering, and the gap can provide a deformation space for the buffer section 131, so that the buffer section 131 has better buffering force on the product 40.

In an embodiment of the present application, referring to fig. 3 and 5 in combination, a deformation hole 132a is formed on a side of the fixing section 132 away from the buffer section 131.

The deformation hole 132a in the embodiment may specifically extend through to the buffer section 131, or may be formed only on the fixing section 132.

The deformation hole 132a in this embodiment may be a circular hole, or may be a triangular or rectangular hole.

In such a design, in the process of embedding the fixing section 132 into the fixing hole 121a, the fixing section 132 is extruded by external force, and the deformation of the fixing section 132 can be released by the design of the deformation hole 132a, so that a deformation space can be provided for the fixing section 132, and the fixing section 132 is better embedded into the fixing hole 121 a.

In an embodiment of the present application, referring to fig. 3 to 5, a first guiding surface 132b is disposed on an outer edge of a side of the fixing section 132 away from the buffer section 131.

The first guide surface 132b in this embodiment may be a guide arc surface or a guide inclined surface, as long as the guide function is achieved.

With such a design, the first guide surface 132b may be provided to further facilitate the insertion of the fixing segment 132 into the fixing hole 121 a.

In an embodiment of the present application, referring to fig. 3 and 7 in combination, the product 40 is provided with a positioning hole 41, and the supporting structure 111 includes a supporting column 1111 and a positioning boss 1112; the pressing structure 121 presses the product 40 to the end surface of the support column 1111, which is close to the buffer member 13, through the buffer member 13; the positioning boss 1112 is disposed on the supporting column 1111 and protrudes from an end surface of the supporting column 1111 near the buffer member 13, and the positioning boss 1112 is inserted into the positioning hole 41.

The positioning boss 1112 in the present embodiment may be specifically disposed on the end face of the support column 1111 near the buffer member 13, or may be disposed on one side of the support column 1111, so long as the positioning boss 1112 protrudes from the end face of the support column 1111 near the buffer member 13.

In the practical application process, the positioning boss 1112 and the support column 1111 may be integrally formed, or may be fixed on the support column 1111 by bonding, clamping, screw connection, or the like.

In some embodiments, the lower shell 11 may be provided with a plurality of supporting structures 111 distributed at intervals, the upper shell 12 may be provided with a plurality of pressing structures 121 distributed at intervals corresponding thereto, and the buffer members 13 are also provided with a plurality of corresponding thereto, and each buffer member 13 is fixedly installed on one pressing structure 121, so that the product 40 is pressed on the plurality of supporting structures 111 through the cooperation of the plurality of pressing structures 121 and the plurality of buffer members 13, so that the pressing strength of the product 40 can be improved, and the fixing reliability of the product 40 can be further improved.

In practical applications, each support structure 111 may be made to include a support column 1111 and a positioning protrusion; alternatively, it is also possible that part of the support structure 111 comprises only support columns 1111 and part of the support structure 111 comprises support columns 1111 and positioning protrusions.

By means of the design, the positioning boss 1112 is arranged on the support column 1111, so that the support column 1111 and the positioning boss 1112 are combined, and therefore, the support structure 111 not only can play a role in supporting the product 40 through the support column 1111, but also can play a role in positioning the product 40 through the cooperation of the positioning boss 1112 and the positioning hole 41, so that the shaking space of the product 40 in the X/Y direction is limited, the shaking condition of the product 40 can be further improved, and the product 40 is stably fixed in the installation cavity.

In an embodiment of the present application, referring to fig. 3, the positioning boss 1112 is disposed in the middle of the end surface of the support column 1111 near the buffer member 13.

By adopting the design, the structural design of the positioning boss 1112 and the supporting column 1111 can be more compact, the occupied space of the supporting structure 111 can be reduced, and larger installation space can be provided for other components.

In an embodiment of the present application, referring to fig. 3, a second guiding surface 1112a is disposed at an outer edge of a side of the positioning boss 1112 away from the supporting column 1111.

The second guide surface 1112a in this embodiment may be a guide arc surface or a guide inclined surface, as long as the guide function is provided.

With such a design, the second guide surface 1112a may be configured to further facilitate insertion of the positioning boss 1112 into the positioning hole 41 of the product 40.

In an embodiment of the present application, referring to fig. 3 to 5 in combination, the buffer 13 is a silica gel pad. By adopting the design, the silica gel pad is adopted as the buffer piece 13, and the buffer piece 13 has better buffer capacity due to better characteristics of tension, flexibility, insulativity, pressure resistance and the like of the silica gel pad, so that the clearance problem after combination caused by the self tolerance problem between the product 40 and the upper shell 12 and the lower shell 11 is effectively improved.

In an embodiment of the present application, referring to fig. 6 and 7 in combination, one of the lower shell 11 and the upper shell 12 is provided with a buckle 122, and the other is provided with a slot 112, and the buckle 122 is in snap fit with the slot 112.

In the practical application process, the lower shell 11 can be provided with a buckle 122, and the upper shell 12 can be provided with a clamping groove 112; alternatively, the lower case 11 may be provided with the locking groove 112 and the upper case 12 may be provided with the locking piece 122.

In some embodiments, the plurality of the clips 122 and the plurality of the slots 112 may be disposed correspondingly, and when the upper shell 12 is covered on the lower shell 11, the plurality of the clips 122 may be engaged with the plurality of the slots 112 in a one-to-one manner, so that the connection reliability between the upper shell 12 and the lower shell 11 may be improved.

By adopting the design, the connection between the lower shell 11 and the upper shell 12 is realized by adopting the clamping fit of the clamping buckle 122 and the clamping groove 112, so that the connection reliability between the upper shell 12 and the lower shell 11 can be improved, and the disassembly and assembly between the upper shell 12 and the lower shell 11 can be conveniently realized.

The application also provides a battery management system, which comprises an assembly structure 10, wherein the specific structure of the assembly structure 10 refers to the above embodiment, and because the battery management system adopts all the technical schemes of all the embodiments, the battery management system at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

According to some embodiments of the present application, an assembly structure 10 for fixing a product 40 is provided, and referring to fig. 3 to 7, the assembly structure 10 includes a lower case 11, an upper case 12, and a buffer 13; the lower shell 11 is provided with a support structure 111; the upper shell 12 is provided with a pressing structure 121, the pressing structure 121 is opposite to the supporting structure 111, the upper shell 12 is covered on the lower shell 11, and an installation cavity is formed by surrounding the upper shell 12 and the lower shell 11; the buffer member 13 is disposed in the mounting cavity and fixed to the pressing structure 121, the product 40 is mounted between the supporting structure 111 and the pressing structure 121, the buffer member 13 is at least partially disposed between the pressing structure 121 and the product 40, and the pressing structure 121 presses the product 40 to the supporting structure 111 through the buffer member 13.

In the technical scheme of the embodiment of the application, when the product 40 is fixed, the product 40 can be arranged between the supporting structure 111 and the pressing structure 121, and as the buffer piece 13 is arranged between the pressing structure 121 and the product 40, the pressing structure 121 can press the product 40 on the supporting structure 111 through the buffer piece 13, and the buffer piece 13 can buffer the product 40 to eliminate component combination tolerance and limit and buffer the product 40 in the assembly process, so that the shaking condition of the product 40 in the shell can be improved, and the risks of the shaking of the product 40 on the functions and reliability of the product 40 can be reduced.

The application also provides an electric device, which comprises a battery management system, wherein the specific structure of the battery management system refers to the embodiment, and the electric device at least has all the beneficial effects brought by the technical proposal of the embodiment because the electric device adopts all the technical proposal of the embodiment, and is not described in detail herein. It will be appreciated that the powered device may be any device or system employing the battery management system described above. The power device further includes a battery 100, and the assembly structure 10 provided in the embodiment of the present application may be applied to a battery management system, which is an important tie connecting the battery 100 and the vehicle 1000, and which precisely controls and manages the battery 100 for perfect application of the driving protection.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the application, and all equivalent structural changes made by the description of the present application and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the application.

Claims (14)

1. An assembly structure for securing a product, the assembly structure comprising:

A lower shell provided with a supporting structure;

The upper shell is provided with a pressing structure, the pressing structure is arranged opposite to the supporting structure, and the upper shell cover is arranged on the lower shell and is enclosed with the lower shell to form an installation cavity; and

The buffer piece is arranged in the installation cavity and is fixed in the pressing structure, the product is installed between the supporting structure and the pressing structure, the buffer piece is at least partially arranged between the pressing structure and the product, and the pressing structure presses the product to the supporting structure through the buffer piece.

2. The assembly structure of claim 1, wherein the press-fit structure is a fixing post, the fixing post is provided with a fixing hole, and the buffer part is partially embedded in the fixing hole.

3. The assembly structure of claim 2, wherein the buffer comprises:

The buffer section is arranged on one side, close to the supporting structure, of the fixed column, and the fixed column presses the product to the supporting structure through the buffer section; and

And the fixing section is connected to one side, far away from the supporting structure, of the buffer section and is embedded in the fixing hole.

4. A package according to claim 3, wherein the securing section comprises:

The first section is connected to one side, far away from the supporting structure, of the buffer section, and the outer diameter of the first section is smaller than the inner diameter of the fixing hole; and

And the second section is connected to one side, far away from the buffer section, of the first section, and the outer diameter of the second section is larger than the inner diameter of the fixing hole.

5. The assembled structure of claim 4, wherein the outer diameter of the first section gradually decreases in the direction from the second section to the first section.

6. A structure according to claim 3, wherein the side of the fixed section remote from the buffer section is provided with a deformation aperture.

7. A structure according to claim 3, wherein the outer edge of the side of the fixed section remote from the buffer section is provided with a first guide surface.

8. The assembly structure according to any one of claims 1 to 7, wherein the product is provided with positioning holes, the support structure comprising:

The pressing structure presses the product on the end face, close to the buffer piece, of the support column through the buffer piece; and

The positioning boss is arranged on the supporting column and protrudes out of the end face, close to the buffer piece, of the supporting column, and the positioning boss is inserted into the positioning hole.

9. The assembly structure of claim 8, wherein the positioning boss is provided in a middle portion of the support column near the end face of the buffer.

10. The assembly structure of claim 8, wherein a second guide surface is provided on an outer edge of a side of the positioning boss remote from the support column.

11. The assembly structure of any one of claims 1 to 7, wherein the cushioning member is a silicone pad.

12. The assembly structure according to any one of claims 1 to 7, wherein one of the lower and upper shells is provided with a catch, and the other is provided with a catch groove, the catch being in snap-fit with the catch groove.

13. A battery management system comprising the assembled structure according to any one of claims 1 to 12.

14. An electrical consumer comprising the battery management system of claim 13.