CN216648506U - Electric equipment, battery and battery box - Google Patents

Abstract

The utility model relates to electric equipment, a battery and a battery box body, wherein the battery box body comprises a shell, a cover plate, a pressing strip and a locking mechanism, a containing cavity for loading the battery is arranged in the shell, the cover plate is arranged at the top of the containing cavity in a covering mode, the pressing strip is magnetically adsorbed on one side, away from the shell, of the cover plate, and the locking mechanism penetrates through and fixes the pressing strip, the cover plate and the shell. A battery comprises the battery box body. An electric device comprises the battery. According to the electric equipment, the battery and the battery box body, the pressing strip is arranged on one side of the cover plate, which is far away from the shell, and the locking mechanism penetrates through and fixes the pressing strip, the cover plate and the shell, so that the cover plate is effectively prevented from warping and deforming when the cover plate and the shell are fixed by the locking mechanism, and meanwhile, the attenuation of locking force when the locking mechanism is locked and fastened is reduced; the layering adopts the magnetic adsorption mode to be fixed in the apron and deviates from one side of casing, the quick assembly disassembly of being convenient for.

Description

Electric equipment, battery and battery box

Technical Field

The utility model relates to the technical field of batteries, in particular to an electric device, a battery and a battery box body.

Background

The battery includes the battery box and holds a plurality of battery monomer in the battery box, for the overall structure intensity of guarantee battery package, realizes the safe of car and traveles, is located the structural strength of the outer battery box of a plurality of battery monomer and is especially important.

The battery box body comprises a cover plate and a shell, a pressing strip is arranged on the cover plate and is in a sectional type, namely the pressing strip is divided into a plurality of sections according to the appearance of the upper cover, and the sectional type pressing strip is fixed with the upper cover through a double-sided adhesive layer so as to ensure that the relative position of the pressing strip is fixed before the bolt is locked. During assembly, the bolt sequentially penetrates through the pressing strip, the double-sided adhesive layer, the upper cover and the lower box body. When the double-sided adhesive layer is adopted to adhere the pressing strip, the axial force of the bolt is attenuated due to the formation of interface flexible connection, the fixing effect of the battery box body is poor, and the disassembly and the assembly are complex and time-consuming.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide an electric device, a battery, and a battery case, which have poor fixing effect and are complicated and time-consuming to assemble and disassemble.

The battery box comprises a shell, a cover plate, a pressing strip and a locking mechanism, wherein a cavity for loading a battery is arranged in the shell, the cover plate is covered on the top of the cavity, the pressing strip is magnetically adsorbed on one side of the cover plate, which is far away from the shell, and the locking mechanism penetrates through and fixes the pressing strip, the cover plate and the shell. According to the battery box body, the pressing strip is arranged on one side, away from the shell, of the cover plate, the locking mechanism penetrates through and fixes the pressing strip, the cover plate and the shell, the cover plate is effectively prevented from warping and deforming when the cover plate and the shell are fixed by the locking mechanism, and meanwhile the attenuation of locking force when the locking mechanism is locked and fastened is reduced; the layering adopts the magnetic adsorption mode to be fixed in the apron and deviates from one side of casing, the quick assembly disassembly of being convenient for.

In one embodiment, the molding is an integrally formed structure. Through this setting, the layering can be installed fast, is favorable to improving the packaging efficiency, and effectively prevents apron upwarp deformation.

In one embodiment, the bead is made of metal and has magnetism. Through the arrangement, the pressing strip has certain rigidity, when the pressing strip is pressed on one side of the cover plate deviating from the shell, the attenuation of locking force of the locking mechanism caused by soft connection of the pressing strip and the interface of the cover plate can be avoided, and meanwhile, the cover plate is effectively prevented from warping and deforming.

In one embodiment, the cover plate comprises a cover body and an edge portion arranged around the edge of the cover body, and the pressing strip is arranged around the periphery of the cover body and magnetically adsorbed to the edge portion. Through the arrangement, the pressing strips are pressed on the edge part of the cover plate, so that the edge part can be effectively prevented from warping and deforming; the layering is fixed through magnetism mode of inhaling, can install the location fast, the simple operation.

In one embodiment, the pressing bar is provided with a first fixing hole, the edge portion is provided with a second fixing hole, the shell is provided with a third fixing hole, and the locking mechanism penetrates through the first fixing hole, the second fixing hole and the third fixing hole. Through this setting, can make layering, apron and casing fixed more effectively.

In one embodiment, the locking mechanism includes a first fastening member and a second fastening member, the first fastening member is disposed through the third fixing hole and fixed to the housing, and the second fastening member is disposed through the first fixing hole and the second fixing hole and locked to the first fastening member. Through this setting, locking mechanism wears to establish and fixes layering, apron and casing, and the installation is convenient fast.

In one embodiment, the second fastening member includes a limiting cap and a rod connected to each other, the first fastening member has an installation groove therein, the rod penetrates through and is fixed to the installation groove, and the limiting cap is limited outside the installation groove. Through this setting, utilize spacing cap spacing to the pole portion to through the cooperation of pole portion and mounting groove, make layering, apron and casing effectively fixed.

In one embodiment, the first fastening member includes a first connecting section, a deformation section and a second connecting section, which are connected with each other, the deformation section is disposed between the first connecting section and the second connecting section, the first connecting section is limited outside the third fixing hole, and the deformation section and the second connecting section are disposed through the third fixing hole; when the rod part is locked at the second connecting section, the deformation section bulges outwards to form a bulge, and the bulge is limited on one side of the shell, which is far away from the cover plate. Through the arrangement, the cover plate and the shell are locked and fixed through the rod part of the second fastening piece and the second connecting section of the first fastening piece, and the first fastening piece is further limited through the protrusion, so that the fixing effect is prevented from being influenced due to looseness of the first fastening piece.

In one embodiment, the battery box further comprises a reinforcing plate, the reinforcing plate is clamped between the limiting cap and the pressing strip, and the rod part penetrates through the reinforcing plate and the pressing strip. Through this setting, it is not hard up between spacing cap and the layering of second fastener to prevent, strengthens the fixed effect between second fastener and the layering.

In one embodiment, the battery box further comprises a sealing element, the sealing element is clamped between the edge portion and the shell, and the locking mechanism penetrates through the pressing strip, the edge portion, the sealing element and the shell. Through this setting, can guarantee the leakproofness of the edge part of apron and casing junction, avoid external liquid drop and dust to get into the appearance intracavity in the casing.

In one embodiment, the sealing member is an integrally formed structure. Through this setting, the leakproofness of the edge portion of apron and casing junction is better, and is convenient for improve the assembly efficiency of battery box.

A battery comprises the battery box body. The battery has the advantages that the structural strength and the sealing performance of the battery box body are good, and the single batteries contained in the battery box body can be well protected.

An electric device comprises the battery. Through this setting, can effectively improve consumer's fail safe nature.

Drawings

FIG. 1 is a schematic diagram of an embodiment of an electrical consumer;

FIG. 2 is a schematic diagram of a battery case according to an embodiment;

FIG. 3 is an enlarged view of a portion A of the battery case of FIG. 2;

FIG. 4 is a schematic view of a batten strip in the battery box of FIG. 2;

fig. 5 is a partial cross-sectional view of the battery case shown in fig. 2.

Reference numerals:

10. a vehicle; 11. a controller; 12. a motor; 20. a battery;

100. a housing; 101. a cavity; 102. a third fixing hole; 200. a cover plate; 210. a cover body; 220. an edge portion; 221. a second fixing hole; 300. layering; 301. a first fixing hole; 400. a locking mechanism; 410. a first fastener; 410a, a mounting groove; 411. a first connection section; 412. a deformation section; 413. a second connection section; 420. a second fastener; 421. a limiting cap; 422. a rod portion; 500. a seal member; 600. a reinforcing plate.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

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 "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase 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. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

With the popularization and promotion of new energy automobiles, the charge and discharge performance, the cruising ability and the like of the new energy automobiles increasingly attract attention and attention of people. The power battery is a rechargeable battery, is a power source of the new energy automobile, and is widely applied to the field of the new energy automobile.

The battery includes the battery box and holds a plurality of battery monomer in the battery box, for the overall structure intensity of guarantee battery package, realizes the safe of car and traveles, is located the structural strength of the outer battery box of a plurality of battery monomer and is especially important.

The battery box body comprises a cover plate and a shell, a pressing strip is arranged on the cover plate and is in a sectional type, namely the pressing strip is divided into a plurality of sections according to the appearance of the upper cover, and the sectional type pressing strip is fixed with the upper cover through a double-sided adhesive layer so as to ensure that the relative position of the pressing strip is fixed before the bolt is locked. During assembly, the bolt sequentially penetrates through the pressing strip, the double-sided adhesive layer, the upper cover and the lower box body. When the double-sided adhesive layer is adopted to adhere the pressing strip, the axial force of the bolt is attenuated due to the formation of interface flexible connection, the fixing effect of the battery box body is poor, and the disassembly and the assembly are complex and time-consuming.

Based on the consideration, through deep research, the inventor designs a battery box body, a pressing strip is arranged on one side of a cover plate, which is far away from a shell, and a locking mechanism penetrates through and fixes the pressing strip, the cover plate and the shell, so that the cover plate is effectively prevented from warping and deforming when the cover plate and the shell are fixed by the locking mechanism, and meanwhile, the attenuation of locking force when the locking mechanism is locked and fastened is reduced; the layering adopts the magnetic adsorption mode to be fixed in the apron and deviates from one side of casing, the quick assembly disassembly of being convenient for.

It should be noted that, in addition to the above-mentioned single battery cell, the battery case may further include other components such as an electrode terminal, a pressure relief mechanism for relieving internal pressure when the internal pressure or temperature of the single battery cell reaches a threshold value, a heat dissipation component, and an insulating member for electrically connecting the internal connection component of the battery case and the battery case, where the insulating member may be plastic, rubber, and the like.

The battery cell disclosed in the present application may be used in, but is not limited to, electric devices such as vehicles, ships, or aircrafts. The power supply system who possesses this consumer of constitution such as battery monomer, battery that this application disclosed can be used, like this, is favorable to alleviating and automatically regulated battery monomer bulging force worsens, and supplementary electrolyte consumes, promotes the stability and the battery life-span of battery performance.

In the present application, the battery cell may include a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like, which is not limited in the embodiments of the present application. The battery cell may be a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which is not limited in the embodiments of the present application. The battery cells are generally divided into three types in an encapsulation manner: the cylindrical battery monomer, the square battery monomer and the soft package battery monomer are not limited in the embodiment of the application.

The battery monomer comprises an electrode assembly and electrolyte, wherein the electrode assembly comprises a positive plate, a negative plate and an isolating membrane. The battery cell mainly depends on metal ions moving between the positive plate and the negative plate to work. The positive plate comprises a positive current collector and a positive active substance layer, wherein the positive active substance layer is coated on the surface of the positive current collector, the current collector which is not coated with the positive active substance layer protrudes out of the current collector which is coated with the positive active substance layer, and the current collector which is not coated with the positive active substance layer is used as a positive electrode lug. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, or the like. The negative pole piece includes negative current collector and negative pole active substance layer, and the negative pole active substance layer coats in the surface of negative current collector, and the mass flow body protrusion in the mass flow body of coating the negative pole active substance layer of uncoated negative pole active substance layer, the mass flow body of uncoated negative pole active substance layer is as negative pole utmost point ear. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. In order to ensure that the fuse is not fused when a large current is passed, the number of the positive electrode tabs is multiple and the positive electrode tabs are stacked together, and the number of the negative electrode tabs is multiple and the negative electrode tabs are stacked together. The material of the isolation film can be polypropylene (PP), Polyethylene (PE) or the like. In addition, the electrode assembly may have a winding structure or a lamination structure, and the embodiment of the present application is not limited thereto.

In this application, a battery refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery pack or the like.

In order to meet different power requirements, a battery may include a plurality of battery cells, wherein the plurality of battery cells may be connected in series or in parallel or in series-parallel, and the series-parallel refers to a mixture of series connection and parallel connection. Alternatively, a plurality of battery cells may be connected in series or in parallel or in series-parallel to form a battery module, and a plurality of battery modules may be connected in series or in parallel or in series-parallel to form a battery. That is to say, a plurality of battery cells may directly constitute a battery, or may be first constituted into a battery module, and then the battery module is constituted into a battery. The battery is further arranged in the electric equipment to provide electric energy for the electric equipment.

The present application provides a power-consuming device using a battery as a power source, and the power-consuming device can be, but is not limited to, a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, and the like. The vehicle can be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle and the like; spacecraft include aircraft, rockets, space shuttles, and spacecraft, among others; electric toys include stationary or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric airplane toys, and the like; the electric power tools include metal cutting electric power tools, grinding electric power tools, assembly electric power tools, and electric power tools for railways, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, electric impact drills, concrete vibrators, and electric planers.

For convenience of description, the following embodiments will be described by taking a power-driven apparatus according to an embodiment of the present application as an example of the vehicle 10.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 10 according to some embodiments of the present disclosure. The vehicle 10 may be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile may be a pure electric automobile, a hybrid electric automobile, or a range-extended automobile, etc. The interior of the vehicle 10 is provided with a battery 20, and the battery 20 may be provided at the bottom or at the head or tail of the vehicle 10. The battery 20 may be used for power supply of the vehicle 10, for example, the battery 20 may serve as an operation power source of the vehicle 10. The vehicle 10 may also include a controller 11 and a motor 12, with the controller 11 being used to control the battery 20 to power the motor 12, for example, for start-up, navigation, and operational power requirements while traveling of the vehicle 10.

In some embodiments of the present application, the battery 20 may be used not only as an operating power source for the vehicle 10, but also as a driving power source for the vehicle 10, instead of or in part of fuel or natural gas to provide driving force for the vehicle 10.

Referring to fig. 2 to 3, the battery box in one embodiment includes a housing 100, a cover plate 200, a pressing bar 300, and a locking mechanism 400. Referring to fig. 5, a cavity 101 for loading the battery 20 is disposed in the housing 100, the cover plate 200 covers the top of the cavity 101, the pressing bar 300 is magnetically adsorbed on a side of the cover plate 200 away from the housing 100, and the locking mechanism 400 penetrates through and fixes the pressing bar 300, the cover plate 200 and the housing 100.

Through the arrangement, the pressing strip 300 is arranged on one side, away from the shell 100, of the cover plate 200, and the locking mechanism 400 penetrates through and fixes the pressing strip 300, the cover plate 200 and the shell 100, so that the cover plate 200 is effectively prevented from warping and deforming when the locking mechanism 400 fixes the cover plate 200 and the shell 100, and meanwhile, the attenuation of the locking force when the locking mechanism 400 is locked and fixed is reduced; the pressing strip 300 is fixed on one side of the cover plate 200 departing from the shell 100 in a magnetic adsorption mode, so that the cover plate is convenient to disassemble and assemble quickly.

It should be noted that the casing 100 includes a plurality of connected frames, the plurality of frames enclose the cavity 101 with an open top, the battery 20 is loaded in the cavity 101 from the opening of the cavity 101, and the cover 200 covers the top of the cavity 101 to close the cavity 101. In a specific embodiment, the plurality of frames are fixed by means of screws, bolts or rivets, or the plurality of frames are of an integrally molded structure.

In this embodiment, as shown in fig. 3, the bead 300 is made of metal and has magnetism. Through the arrangement, the pressing strip 300 has certain rigidity, when the pressing strip 300 is pressed on one side of the cover plate 200 departing from the shell 100, the attenuation of the locking force of the locking mechanism 400 caused by the soft connection of the interface of the pressing strip 300 and the cover plate 200 can be avoided, and meanwhile, the cover plate 200 is effectively prevented from warping and deforming.

In a specific embodiment, the bead 300 may be a metal that is easily magnetized, such as iron, nickel, iron-nickel alloy, or ferrite, and the metal is made magnetic through a magnetizing process. That is, the metal is placed in a magnetic field formed by a coil through which a direct current passes, and the metal is magnetized.

In this embodiment, as shown in fig. 2 and 3, the molding 300 is an integrally formed structure. Through this setting, layering 300 can install fast, is favorable to improving the packaging efficiency, and effectively prevents apron 200 upwarp deformation.

In the embodiment shown in fig. 3, the cover plate 200 includes a cover body 210 and an edge portion 220 surrounding the cover body 210, and the bead 300 is disposed around the cover body 210 and magnetically attached to the edge portion 220.

It can be understood that when the locking mechanism 400 fixes the cover plate 200 and the housing 100, the edge portion 220 of the cover plate 200 is very prone to warping deformation. Through the arrangement, the pressing strip 300 is pressed on the edge part 220 of the cover plate 200, so that the edge part 220 can be effectively prevented from warping and deforming; layering 300 is fixed through magnetism mode of inhaling, can install the location fast, the simple operation.

In the present embodiment, referring to fig. 3, the cover body 210 protrudes from the edge portion 220 in a vertical direction, that is, a top surface of the cover body 210 is higher than a plane of the edge portion 220, and the vertical direction is a Z direction shown in fig. 2. Through this setting, can increase the volume of battery box inner chamber 101, and do benefit to the installation location of layering 300.

In other embodiments, the cover body 210 may not protrude from the edge portion 220 in the vertical direction, that is, the cover body 210 and the edge portion 220 are located on the same horizontal plane, or the top surface of the cover body 210 is lower than the plane of the edge portion 220.

In the present embodiment, referring to fig. 2, the cover plate 200 is hexagonal, and accordingly, the cover body 210 and the edge portion 220 are also hexagonal. In other embodiments, the cover plate 200 may have a rectangular shape or other shapes, and accordingly, the cover body 210 and the edge portion 220 may have a rectangular shape or other shapes.

In the embodiment shown in fig. 4, the pressing bar 300 is provided with a first fixing hole 301, as shown in fig. 3, the edge portion 220 is provided with a second fixing hole 221, the housing 100 is provided with a third fixing hole 102, and the locking mechanism 400 is inserted through the first fixing hole 301, the second fixing hole 221 and the third fixing hole 102. Through the arrangement, the locking mechanism 400 penetrates through and fixes the pressing strip 300, the cover plate 200 and the shell 100, and the installation is rapid and convenient.

In the embodiment, the number of the first fixing holes 301, the second fixing holes 221 and the third fixing holes 102 is plural, the number of the locking mechanisms 400 is plural, and each locking mechanism 400 corresponds to one first fixing hole 301, one second fixing hole 221 and one third fixing hole 102. The plurality of first fixing holes 301 are uniformly distributed along the circumferential direction of the molding 300, the plurality of second fixing holes 221 are uniformly distributed along the circumferential direction of the rim portion 220, and the plurality of third fixing holes 102 are uniformly distributed along the circumferential direction of the housing 100. Through the above arrangement, the bead 300, the cover plate 200, and the case 100 can be more effectively fixed.

In this embodiment, as shown in fig. 3, the locking mechanism 400 includes a first fastening member 410 and a second fastening member 420, and as shown in fig. 4, the first fastening member 410 is inserted into the third fixing hole 102 and fixed to the housing 100, and the second fastening member 420 is inserted into the first fixing hole 301 and the second fixing hole 221 and locked to the first fastening member 410.

Through the arrangement, the first fastening piece 410 is fixed on the shell 100, and the locking pressing strip 300, the cover plate 200 and the shell 100 are matched through the second fastening piece 420 and the first fastening piece 410, so that the operation is rapid and convenient, and the structural design is simple and reasonable.

In the specific embodiment, the first fastening member 410 is a rivet nut, the second fastening member 420 is a bolt, and the first fixing hole 301, the second fixing hole 221, and the third fixing hole 102 are all threaded holes.

It should be noted that, as shown in fig. 3, when the cover plate 200 and the housing 100 are to be fixed, the second fastening member 420 is locked with the first fastening member 410; when the cover plate 200 and the housing 100 need to be removed, the second fastening member 420 and the first fastening member 410 are in an unlocked state. By rotating the second fastening member 420 relative to the first fastening member 410, the second fastening member 420 and the first fastening member 410 can be switched between the locked state and the unlocked state.

As shown in fig. 5, in the embodiment, the second fastening member 420 includes a limiting cap 421 and a rod 422 connected to each other, and as shown in fig. 3, an installation groove 410a is formed in the first fastening member 410, the rod 422 is inserted into and fixed to the installation groove 410a, and the limiting cap 421 is limited outside the installation groove 410 a.

Through the arrangement, the rod part 422 is limited by the limiting cap 421, and the pressing strip 300, the cover plate 200 and the shell 100 are effectively fixed through the matching of the rod part 422 and the mounting groove 410 a.

In this embodiment, as shown in fig. 5, the diameter of the limiting cap 421 is greater than the diameter of the mounting groove 410a, and the diameter of the mounting groove 410a is greater than or equal to the diameter of the rod 422, so that the rod 422 penetrates through the mounting groove 410a and the limiting cap 421 is limited outside the mounting groove 410 a.

In the present embodiment, the shaft 422 has a cylindrical shape, and the mounting groove 410a has a cylindrical shape so that the mounting groove 410a is fitted to the shaft 422. In other embodiments, the shaft 422 and the mounting groove 410a may have other shapes.

As shown in fig. 5, in the embodiment, the first fastening member 410 includes a first connecting section 411, a deformation section 412 and a second connecting section 413 connected to each other, the deformation section 412 is disposed between the first connecting section 411 and the second connecting section 413, as shown in fig. 3, the first connecting section 411 is limited outside the third fixing hole 102, and the deformation section 412 and the second connecting section 413 penetrate through the third fixing hole 102.

In this embodiment, as shown in fig. 5, when the rod 422 is locked to the second connecting section 413, the deformation section 412 bulges outwards to form a protrusion, and the protrusion is limited on a side of the housing 100 away from the cover plate 200. Through the arrangement, the shaft portion 422 of the second fastening member 420 and the second connecting section 413 of the first fastening member 410 are used for locking and fixing the cover plate 200 and the housing 100, and the first fastening member 410 is further limited by the protrusion, so that the fixing effect is prevented from being influenced by the looseness of the first fastening member 410.

It should be noted that, as shown in fig. 3 and 5, the diameter of the first connecting section 411 is larger than the diameter of the third fixing hole 102, and the diameters of the deformation section 412 and the second connecting section 413 are smaller than or equal to the diameter of the third fixing hole 102.

In the present embodiment, as shown in fig. 5, the thickness of the deformation section 412 is at most 0.5 times the thickness of the second connection section 413. With this arrangement, the thickness of the deformation section 412 is smaller than that of the second connection section 413, and when the rod 422 is locked to the second connection section 413, the deformation section 412 can deform, and the second connection section 413 does not deform and provides a supporting force.

For example, by notching the inner wall of the shape-changing section 412 and controlling the depth of the notching, the thickness of the shape-changing section 412 is at most 0.5 times the thickness of the second connecting section 413.

In other embodiments, the thickness of the deformation section 412 may also be other times of the thickness of the second connection section 413, and the thickness of the deformation section 412 may be designed according to actual requirements.

In a specific embodiment, as shown in fig. 5, the shaft 422 of the second fastening member 420 is provided with an external thread, and the second connection section 413 of the first fastening member 410 is provided with an internal thread, so that the shaft 422 and the second connection section 413 are locked and unlocked through the internal and external thread connection.

In the embodiment shown in fig. 5, the battery box further includes a reinforcing plate 600, the reinforcing plate 600 is sandwiched between the limiting cap 421 and the bead 300, and the rod 422 penetrates through the reinforcing plate 600 and the bead 300. Through the arrangement, looseness between the limiting cap 421 of the second fastening piece 420 and the pressing strip 300 is prevented, and the fixing effect between the second fastening piece 420 and the pressing strip 300 is enhanced.

In the embodiment, the reinforcing plate 600 further defines a fourth fixing hole (not shown), the pressing bar 300 defines the first fixing hole 301, and the shaft 422 of the second fastening member 420 passes through the fourth fixing hole and the first fixing hole 301. The reinforcing plate 600 may be made of plastic or metal such as aluminum or stainless steel.

In the present embodiment, the reinforcing plate 600 has a circular shape, and the area of the reinforcing plate 600 at least covers the first fixing hole 301. In other embodiments, the stiffener plate 600 may also be rectangular or other shapes.

In the embodiment shown in fig. 5, the battery case further includes a sealing member 500, the sealing member 500 is interposed between the edge portion 220 and the case 100, and the locking mechanism 400 is inserted through the bead 300, the edge portion 220, the sealing member 500 and the case 100. Through the arrangement, the sealing performance of the joint of the edge part 220 of the cover plate 200 and the shell 100 can be ensured, and external liquid drops and dust are prevented from entering the cavity 101 in the shell 100.

In this embodiment, the sealing member 500 is an integrally molded structure. Through this arrangement, the sealing performance at the connection of the edge portion 220 of the cap plate 200 and the case 100 is better, and it is convenient to improve the assembly efficiency of the battery case.

In particular embodiments, the seal 500 may be a silicone strip or a rubber strip.

Referring to fig. 1, a battery 20 includes the above-mentioned battery case, and a battery cell is accommodated in the battery case. Through this setting, battery box's structural strength and leakproofness are better, and the battery monomer of holding in battery box can be protected betterly.

Referring to fig. 1, an electric device includes a battery 20, and the battery 20 is used for supplying power to the electric device. Through this setting, can effectively improve consumer's fail safe nature.

According to some embodiments of the present application, referring to fig. 1 to 5, the present application provides a battery box, which includes a housing 100, a cover plate 200, a bead 300, a locking mechanism 400, a reinforcing plate 600 and a sealing member 500, wherein a cavity 101 for loading a battery 20 is disposed in the housing 100, the cover plate 200 is covered on the top of the cavity 101, and the bead 300 is magnetically adsorbed on a side of the cover plate 200 away from the housing 100. The cover plate 200 includes a cover body 210 and an edge portion 220 surrounding the edge of the cover body 210, the bead 300 is disposed around the periphery of the cover body 210 and magnetically attached to the edge portion 220, and the sealing member 500 is interposed between the edge portion 220 and the housing 100. The pressing strip 300 is provided with a first fixing hole 301, the edge portion 220 is provided with a second fixing hole 221, the casing 100 is provided with a third fixing hole 102, the reinforcing plate 600 is further provided with a fourth fixing hole, and the locking mechanism 400 penetrates through the first fixing hole 301, the second fixing hole 221, the third fixing hole 102 and the fourth fixing hole. The locking mechanism 400 includes a first fastening member 410 and a second fastening member 420, the first fastening member 410 includes a first connecting section 411, a deformation section 412 and a second connecting section 413 connected to each other, the deformation section 412 is disposed between the first connecting section 411 and the second connecting section 413, the first connecting section 411 is limited outside the third fixing hole 102, and the deformation section 412 and the second connecting section 413 penetrate through the third fixing hole 102. The second fastening member 420 includes a limiting cap 421 and a rod 422 connected to each other, the first fastening member 410 is provided with an installation groove 410a therein, the rod 422 penetrates and is fixed to the installation groove 410a, the limiting cap 421 is limited outside the installation groove 410a, and when the rod 422 is locked to the second connection section 413, the deformation section 412 bulges outwards to form a protrusion, and the protrusion is limited on one side of the casing 100 departing from the cover plate 200.

According to some embodiments of the present application, referring to fig. 1, the present application provides a battery 20, the battery 20 including the above-described battery case, and a battery cell accommodated in the battery case.

According to some embodiments of the present application, referring to fig. 1, the present application provides a powered device, and a battery 20 is used to power the powered device.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (13)

1. A battery case, comprising:

a housing (100) in which a cavity (101) for accommodating a battery is arranged;

the cover plate (200) is arranged at the top of the cavity (101) in a covering mode;

the pressing strip (300) is magnetically adsorbed to one side, away from the shell (100), of the cover plate (200);

and the locking mechanism (400) penetrates through and fixes the pressing strip (300), the cover plate (200) and the shell (100).

2. The battery box according to claim 1, characterized in that the bead (300) is of an integrally formed structure.

3. The battery box as recited in claim 1, wherein the bead (300) is made of metal and has magnetism.

4. The battery box body according to claim 1, wherein the cover plate (200) comprises a cover body (210) and an edge portion (220) surrounding the edge of the cover body (210), and the bead (300) is surrounding the periphery of the cover body (210) and magnetically adsorbed to the edge portion (220).

5. The battery box body as claimed in claim 4, wherein the pressing bar (300) is provided with a first fixing hole (301), the edge portion (220) is provided with a second fixing hole (221), the housing (100) is provided with a third fixing hole (102), and the locking mechanism (400) penetrates through the first fixing hole (301), the second fixing hole (221) and the third fixing hole (102).

6. The battery box body according to claim 5, wherein the locking mechanism (400) comprises a first fastening member (410) and a second fastening member (420), the first fastening member (410) penetrates through the third fixing hole (102) and is fixed to the housing (100), and the second fastening member (420) penetrates through the first fixing hole (301) and the second fixing hole (221) and is locked to the first fastening member (410).

7. The battery box body according to claim 6, wherein the second fastening member (420) comprises a limiting cap (421) and a rod part (422) which are connected with each other, a mounting groove (410 a) is formed in the first fastening member (410), the rod part (422) penetrates through and is fixed in the mounting groove (410 a), and the limiting cap (421) is limited outside the mounting groove (410 a).

8. The battery box body according to claim 7, wherein the first fastening member (410) comprises a first connecting section (411), a deformation section (412) and a second connecting section (413) which are connected, the deformation section (412) is arranged between the first connecting section (411) and the second connecting section (413), the first connecting section is limited outside the third fixing hole (102), and the deformation section (412) and the second connecting section (413) penetrate through the third fixing hole (102); when the rod part (422) is locked on the second connecting section (413), the deformation section (412) bulges outwards to form a bulge, and the bulge is limited on one side of the shell (100) departing from the cover plate (200).

9. The battery box body according to claim 7, further comprising a reinforcing plate (600), wherein the reinforcing plate (600) is sandwiched between the limiting cap (421) and the bead (300), and the rod (422) penetrates through the reinforcing plate (600) and the bead (300).

10. The battery box body according to claim 4, further comprising a sealing member (500), wherein the sealing member (500) is interposed between the edge portion (220) and the housing (100), and the locking mechanism (400) is disposed through the pressing strip (300), the edge portion (220), the sealing member (500) and the housing (100).

11. The battery case according to claim 10, wherein the sealing member (500) is an integrally molded structure.

12. A battery comprising a battery case according to any one of claims 1 to 11.

13. An electrical device comprising the battery of claim 12.

Images