CN216750124U - Protection member, battery, and power consumption device - Google Patents

Abstract

The application discloses protection component, battery and power consumption device, wherein, protection component is used for protecting the output pole of battery, and includes: a fastener (3) for locking the output pole (30); the protective cover (1) comprises a cover body (1 ') and a first connecting part, the cover body (1') is provided with an inner cavity, the first connecting part is connected to the cover body (1 ') and located in the inner cavity, one side of the cover body (1') is provided with a first opening (111), and the first opening (111) is used for allowing the output electrode (30) to penetrate into the inner cavity from the outside; and the clamping piece (2) is arranged in the inner cavity, the clamping piece (2) comprises a second connecting part and a clamping part (221), the second connecting part is connected with the first connecting part, and the clamping part (221) is clamped with the fastener (3).

Description

Protection member, battery, and power consumption device

Technical Field

The application relates to the technical field of batteries, in particular to a protection component, a battery and an electric device.

Background

Because the lithium battery has the advantages of high energy density, high power density, multiple recycling times, long storage time and the like, the lithium battery is widely applied to electric automobiles.

In order to improve the power of the lithium battery, a plurality of battery monomers are arranged in the battery and are connected in series, parallel or series-parallel mode, and finally, the electric energy is output outwards through an output electrode.

SUMMERY OF THE UTILITY MODEL

The application provides a protection component, battery and power consumption device, can improve the commonality to different battery output pole protections.

According to a first aspect of the present application, there is provided a protection member for protecting an output pole of a battery and including:

a fastener for locking the output pole;

the protective cover comprises a cover body and a first connecting part, the cover body is provided with an inner cavity, the first connecting part is connected with the cover body and is positioned in the inner cavity, one side of the cover body is provided with a first opening, and the first opening is used for allowing the output electrode to penetrate into the inner cavity from the outside; and

the clamping piece is arranged in the inner cavity and comprises a second connecting portion and a clamping portion, the second connecting portion is connected with the first connecting portion, and the clamping portion is clamped with the fastening piece.

This embodiment is through the fastener chucking of design fastener and fixed output pole, and the fastener easily keeps the model unified, can make the block portion of fastener set up to general interface with the fastener complex, need not to make visor and other structure spare cooperate the chucking, also need not to match the design with the installation frame yet, can improve the protection component from this and to the commonality of different battery module, reduce the kind of visor to reduce cost.

In some embodiments, the first connecting portion includes one of a first buckle and a buckle hole provided on the cover body, and the second connecting portion includes the other of the first buckle and the buckle hole, and the first buckle cooperates with the buckle hole to restrict the protective cover from being disengaged with respect to the buckle member in the axial direction of the fastener.

The embodiment realizes the connection of the clamping piece and the protective cover by arranging the clamping structure, is easy to assemble, can improve the installation efficiency of the protective component, has higher connection reliability, and is not easy to separate.

In some embodiments, the first connecting portion includes a first buckle, the first buckle includes a first main body portion and a hook, and the hook is disposed on an outer periphery of the first main body portion;

the clamping piece further comprises a second main body part, the second connecting part comprises a clamping hole formed in the second main body part, the clamping hole is a stepped hole, the first buckle is inserted into the stepped hole, and the step of the stepped hole limits the clamping hook to limit the first buckle to be separated from the stepped hole.

In the embodiment, the stepped hole is matched with the clamping hook to realize clamping, the first clamping buckle can be prevented from being separated through the step, and the connection reliability of the clamping piece and the protective cover is improved.

In some embodiments, the first connecting portion further includes a second buckle disposed on the cover, the engaging member further includes a second main body portion, the second connecting portion further includes a third buckle disposed on the second main body portion, and the second buckle is engaged with the third buckle to limit the circumferential rotation of the protective cover relative to the engaging member along the fastening member.

The embodiment can be clamped with the third clamping buckle through the second clamping buckle, the protective cover is limited to rotate relative to the clamping part along the circumferential direction of the fastening part, the structure is easy to assemble, and other additional structural parts are not required to be added.

In some embodiments, the second buckle is annularly disposed, the engaging member includes a second cylindrical main body, a groove is disposed at an end of the second main body facing the fastener, the fastener includes a head, the groove is used for accommodating the head, the third buckle is disposed at an outer periphery of the second main body, and the second buckle is sleeved outside the second main body and is engaged with the third buckle.

The embodiment can reduce the size of the clamping piece occupied along the axial direction of the fastening piece, so that the mounting and connecting structure of the protective cover is more compact.

In some embodiments, the head has a first limiting surface, the sidewall of the groove has a second limiting surface, and the first limiting surface and the second limiting surface cooperate to limit the rotation of the engaging member relative to the fastening member.

According to the embodiment, on the basis that the rotation between the protective cover and the clamping piece is limited through clamping, the relative rotation between the clamping piece and the head of the fastening piece is further limited, so that the protective cover can be reliably prevented from rotating around the axial direction of the fastening piece, the position of the protective cover relative to the fastening piece is fixed, and the protective cover is installed and fixed by the fastening piece.

In some embodiments, the inner wall of the recess is provided with a resilient gripping member configured to grip the head of the fastener.

This embodiment can be through chucking spare with the head chucking behind the head embedding recess of fastener to improve the reliability and the fastness of visor installation, ensure the fixed stability of the head of fastener and fastener, avoid the left and right sides rocking to make the fastener deviate from. Moreover, the size of the recess is made slightly larger than that of the head portion, so that the head portion is easily fitted into the recess, and the retainer is in an elastically deformed state in the retaining state.

In some embodiments, the first connecting portion includes a first buckle, the first buckle is disposed on the cover and located in a central region of the second buckle, and the second connecting portion includes a clamping hole, and the clamping hole is disposed at an end of the second main body portion away from the fastener.

In the embodiment, the second buckle is arranged at the periphery of the first buckle in a concentric manner, so that the clamping piece is positioned between the second buckle and the first buckle, the circumferential degree of freedom can be limited by clamping the outer layer of second buckle and the third buckle, and the axial degree of freedom can be limited by embedding the inner layer of first buckle into the clamping hole of the clamping piece, thereby realizing the reliable connection of the clamping piece and the protective cover.

In some embodiments, the second buckle includes a plurality of first claws arranged at intervals along the circumferential direction, the third buckle includes a plurality of second claws arranged at intervals along the circumferential direction on the outer wall of the second main body part, and the plurality of first claws and the plurality of second claws are alternately arranged to realize clamping.

The embodiment can limit the relative rotation between the protective cover and the clamping piece through the alternate clamping of the first clamping claw and the second clamping claw, so that the reliability of the protective cover in the installation state is improved.

In some embodiments, the first jaw is provided with a bevel along the radial inner side of the second buckle, and the bevel enables the inner side surface of the first jaw to be gradually expanded from inside to outside along the axial direction of the fastener.

In the embodiment, in the state that the first clamping jaw is clamped with the second clamping jaw, the first clamping jaw is circumferentially positioned between the adjacent second clamping jaws, if the angle of the protective cover in the plane perpendicular to the axial direction of the fastener is to be adjusted, a rotating action force can be applied to the protective cover, the inner side surface of the first clamping jaw is provided with the inclined surface, the first clamping jaw can be unfolded outwards along the radial direction by the second clamping jaw during rotation, and after the protective cover rotates to a proper position, the first clamping jaw falls between the adjacent second clamping jaws to form circumferential limiting again, so that the mounting reliability of the protective cover at the position is ensured. Therefore, the mounting angle of the protective cover can be adjusted arbitrarily.

In some embodiments, the outer side of the second jaw is tapered in the axial direction of the fastener from the second body portion to the free end to enable the second jaw to nest between adjacent first jaws.

The embodiment designs a plurality of second jack catchs for the shape that gradually expands, is convenient for make the part of second jack catch near the free end imbed reliably block between the adjacent first jack catch, and can increase the joint strength between second jack catch and the second main part, prevents to exert the effort to the second jack catch when the protective cover rotates and leads to the fracture.

In some embodiments, the engaging portion includes a plurality of engaging grooves correspondingly formed at inner sides of free ends of the second jaws, and the fastening member includes: the connecting portion, flange portion and head, flange portion connect along the axial between connecting portion and head, the draw-in groove is configured to the card in the radial outer end of flange portion.

This embodiment adopts the fastener that has flange portion to make the draw-in groove card of second jack catch free end department in the radial outer end of flange portion, can make full use of fastener self structure realize the chucking of fastener and fastener, also do not influence flange portion and lean on the installation frame, thereby realize the installation of visor fixed, simple structure connects reliably.

In some embodiments, the cover is rectangular and has four side plates and an end plate connected to one end of the four side plates, the end plate is disposed opposite to the fastening member, the first opening is disposed on one of the side plates, and at least one of the remaining side plates has a baffle plate that can be opened to form a second opening, and the second opening is configured to allow the output electrode to be led out from the inner cavity.

According to the embodiment, the baffle plates are arranged on the side plates except the first opening, so that the output poles can be led out from a specific direction, the number of the baffle plates can be three at most, the output poles can be led out from the specific direction, corresponding baffle plates are removed, the requirement for leading out the output poles in different directions in the battery module can be flexibly met, and the universality is improved.

According to a second aspect of the present application, there is provided a battery including a battery module including:

a mounting frame having a receiving cavity;

the battery monomers are arranged in the accommodating cavity;

the output electrode is used for outputting or inputting the electric energy of the plurality of battery cells; and

the protective member of the above embodiment, which is used to protect the output pole.

According to a third aspect of the present application, there is provided an electric device, comprising the battery of the above embodiment, the battery being configured to provide electric energy to the electric device.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural view of some embodiments of the present application for mounting a battery to a vehicle.

Fig. 2 is an exploded view of some embodiments of the batteries of the present application.

Fig. 3 is a schematic structural view of some embodiments of the battery module of the present application.

Fig. 4 is a schematic view of some embodiments of the present protective members from a first perspective.

Fig. 5 is a schematic diagram of some embodiments of the battery protection component of the present application from a second perspective.

Fig. 6 is a cross-sectional view of some embodiments of the present protective members.

Fig. 7 is an exploded view of some embodiments of the present protective member.

FIG. 8 is a schematic structural diagram of some embodiments of protective caps.

Fig. 9 is a bottom view of the protective cap of fig. 8.

FIG. 10 is a schematic view of some embodiments of a snap member in a first perspective.

FIG. 11 is a schematic view of some embodiments of a snap member in a second perspective.

FIG. 12 is a cross-sectional view of some embodiments of a snap.

FIG. 13 is a schematic diagram of some embodiments of protective caps.

In the drawings, the drawings are not necessarily to scale.

Description of the labeling:

200. a vehicle; 201. an axle; 202. a wheel; 203. a motor; 204. a controller;

100. a battery; 101. a housing assembly; 101A, a box body; 101B, a cover body; 10. a battery module; 10', a battery cell; 20. a mounting frame; 20A, a first plate; 20B, a second plate; 30. an output electrode;

1. a protective cover; 1' and a cover body; 11. a side plate; 111. a first opening; 112. a baffle plate; 113. a strength reducing portion; 114. a second opening; 115. a main body plate; 12. an end plate; 13. a first buckle; 131. a first main body portion; 132. a hook; 14. a second buckle; 141. a third main body portion; 142. a first jaw; 1421. a bevel;

2. a fastener; 21. a second main body portion; 211. a clamping hole; 211' and a step; 212. a groove; 212', a second limiting surface; 22. a third buckle; 221. a fastening part; 2211. a card slot; 22', a second jaw; 212', a second limiting surface; 213. a retainer;

3. a fastener; 31. a head portion; 311. a first limit surface; 32. a connecting portion; 33. a flange portion;

x, a first direction; y, a second direction; z, third direction.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the application and are not intended to limit the scope of the application, i.e., the application is not limited to the described embodiments.

In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. "vertical" is not strictly vertical, but is within the tolerance of the error. "parallel" is not strictly parallel but is within the tolerance of the error. The following description is given with the directional terms as they are used in the drawings and not intended to limit the specific structure of the present application.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood as appropriate by one of ordinary skill in the art.

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 some embodiments 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 "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).

This application uses the expressions "upper", "lower", "top", "bottom", "front", "back", "inner" and "outer" to indicate orientations and positional relationships, which are used for convenience in describing the application, and do not indicate or imply that the devices referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the application.

The battery referred to in the embodiments of the present application refers to a single physical module including a plurality of battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, etc.

The battery cell mentioned in the embodiments of the present application 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, and the embodiments of the present application are not limited thereto. 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 single battery of cylindricality battery, square battery monomer and laminate polymer battery monomer, this application embodiment is to this also not limited.

The inventor finds in practice that the current battery output electrode protective cover is directly fixed on the mounting frame, the structure and the mounting structure of the protective cover are both designed according to the mounting frame, and due to the fact that the mounting frame structures of different batteries are different greatly, matching design is needed for different batteries, the number of types of the protective cover is large, and generalization cannot be achieved. Therefore, the inventor intends to improve the mounting manner of the protective cover to improve the versatility of different batteries.

The battery of the present application may be used for an electric device that can supply electric power to an electric device, which may be a mobile phone, a portable device, a notebook computer, a battery car, an electric automobile, 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, a spacecraft, and the like, an electric toy including a stationary type or a mobile type electric toy, for example, a game machine, an electric automobile toy, an electric ship toy, an electric airplane toy, and the like, an electric tool including a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and an electric tool for a railway, 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.

As shown in fig. 1, the electric device may be a vehicle 200, such as a new energy vehicle, which may be a pure electric vehicle, a hybrid electric vehicle, or a range-extended vehicle; or the electric device can be an unmanned aerial vehicle or a ship and the like. Specifically, the vehicle 200 may include an axle 201, wheels 202 connected to the axle 201, a motor 203, a controller 204, and a battery 100, wherein the motor 203 is used for driving the axle 201 to rotate, the controller 204 is used for controlling the motor 203 to operate, and the battery 100 may be disposed at the bottom, head or tail of the vehicle 200 for providing electric energy for the operation of the motor 203 and other components in the vehicle.

Fig. 2 is a schematic structural view of some embodiments of the battery 100 of the present application, and the battery 100 may include a housing assembly 101 and at least one battery module 10. The battery module 10 includes a plurality of battery cells 10 'arranged side by side along the first direction x, and the plurality of battery cells 10' may be connected in series or in parallel or in series-parallel, where the series-parallel refers to a mixture of series connection and parallel connection.

The case assembly 101 has a hollow structure inside, and at least one battery module 10 is accommodated in the case assembly 101. For example, the housing assembly 101 may include a case 101A and a cover 101B. The case 101A and the cover 101B are fastened together. For example, the box 101A and the cover 101B may be hollow cuboids, only one surface of each of the box and the cover is a first opening surface, the first opening of the box 101A and the first opening of the cover 101B are oppositely disposed, and the box 101A and the cover 101B are buckled with each other to form a box with a closed cavity. The case 101A may be a rectangular parallelepiped having a first opening and the cover 101B may be plate-shaped, or the cover 101B may be a rectangular parallelepiped having a first opening and the case 101A may be plate-shaped, and the case 101A and the cover 101B may be disposed to face each other and engaged with each other to form a case having a closed chamber. At least one battery module 10 is connected in parallel or in series-parallel combination, and then placed in a closed chamber formed by buckling the case 101A and the cover 101B. The battery cells 10' are assembled by applying an adhesive to the bottoms thereof and then sequentially placing them in the case 101A.

In some embodiments, as shown in fig. 3, the battery module 10 includes: mounting frame 20, a plurality of battery cells 10'. The mounting frame 20 has a receiving cavity, and a plurality of battery cells 10 'are disposed in the receiving cavity and may be disposed side by side along the first direction x, and side surfaces of the adjacent battery cells 10' are in contact. For example, the mounting frame 20 may comprise two first plates 20A and two second plates 20B, the first plates 20A being perpendicular to the second direction y and the second plates 20B being perpendicular to the first direction x.

In order to output the electrical energy of the battery cell 10', the battery module 10 further includes a bus bar 40 and an output pole 30. The bus bar 40 is used to electrically connect the plurality of battery cells 10 ', for example, in fig. 3, the bus bar 40 electrically connects the electrode terminals of two adjacent battery cells 10 ' with opposite polarities, the bus bar 40 may be provided in plurality to connect the plurality of battery cells 10 ' in series, and the bus bar 40 may be a bus bar or a bus sheet.

The output electrode 30 is an output electrode in a discharging process for outputting or inputting electric energy of the plurality of battery cells 10 ', and for example, the output electrode 30 may be connected to an electrode terminal of the outermost battery cell 10 ' on the electrical connection path to output electric energy of the plurality of battery cells 10 ' in the battery module 10. As shown in fig. 3 and 4, the output pole 30 can be secured to the mounting frame 20 by fasteners 3. For example, the output electrode 30 may have a strip or sheet structure, and may be bent according to the requirement of the lead-out path.

In order to protect the output electrode 30, the battery 100 may further include a protective member for protecting the output electrode 30 to prevent the output electrode 30 from being short-circuited with other components or damaged by foreign materials. As shown in fig. 3, the top surface of the second plate 20B may be lower than the first plate 20A by a predetermined height so as to leave a space for the protection member, and the output electrode 30 may be bent downward after being drawn from the electrode terminal to extend along the side surface of the battery cell 10', and then bent to extend along the top surface of the second plate 20B and be fastened to the second plate 20B by the fastening member 3.

In some embodiments, as shown in fig. 4, the protective member comprises: fastener 3, protective cover 1 and fastener 2. Wherein the fastener 3 is used for locking the output pole 30; the protective cover 1 includes a cover 1 ' and a first connecting portion, the cover 1 has an inner cavity, the first connecting portion is connected to the cover 1 ' and located in the inner cavity, a first opening 111 is provided at one side of the cover 1 ', and the first opening 111 is configured to allow the output electrode 30 to penetrate into the inner cavity from the outside. The clamping piece 2 is arranged in the inner cavity, the clamping piece 2 comprises a second connecting portion and a clamping portion 221, the second connecting portion is connected with the first connecting portion, and the clamping portion 221 is clamped with the fastening piece 3.

The output electrode 30 is used for outputting the electric energy of the plurality of battery cells 10' in the battery module 10, for example, the output electrode 30 may have a sheet or strip structure and is made of a conductive material. The fastener 3 is used for locking the output pole 30 and can adopt standard parts or fixed parts. For example, the fasteners 3 may be screws, bolts, rivets, or the like, and the fasteners 3 may fix the output pole 30 to the mounting frame 20.

The protective cover 1 is used for protecting the output electrode 30, and the cover body 1' is provided with an inner cavity and can adopt a thin-wall structure in a cuboid or other shapes. Taking a rectangular parallelepiped structure as an example, the cover body 1' may include four side plates 11 and end plates 12, where the end plates 12 are connected to the ends of the four side plates 11, for example, the end plate 12 is only disposed at one end of the side plate 11, and the other end of the side plate is used for the fastener 3 to extend into the inner cavity; or both ends of the side plates 11 are provided with end plates 12, and one end plate 12 is provided with an opening for the fastening piece 3 to extend into the inner cavity. One of the side plates 11 may be provided with a first opening 111, and the first opening 111 is configured to allow the output electrode 30 to penetrate into the inner cavity from the outside. The first connecting portion is arranged in the inner cavity.

The clamping piece 2 is arranged in the inner cavity and is an independent part, the clamping piece 2 comprises a second connecting portion and a clamping portion 221, the second connecting portion is connected with the first connecting portion, and the clamping portion 221 is clamped with the fastening piece 3. As shown in fig. 4, the first connecting portion is provided on the end plate 12, the end plate 12 is provided opposite to the end portion of the fastening member 3, if the fastening member 3 is a bolt, the end plate 12 is provided opposite to the head portion of the bolt, and the second connecting portion and the engaging portion 221 are connected in the axial direction of the fastening member 3, so that the engaging member 2 can be connected to the protective cover 1 easily, and the engaging member 2 can be connected to the fastening member 3.

Taking fig. 3 as an example, the axis of the fastening member 3 coincides with the third direction z, the end plate 12 is disposed perpendicular to the third direction z, and the output pole 30 passes through the first opening 111 in the first direction x and out of the side plate 11 opposite to the first opening 111.

This embodiment is designed such that the engaging member 2 is engaged with the fastening member 3 for fixing the output electrode 30, the fastening member 3 is easy to keep the models uniform, and the engaging portion 221 of the engaging member 2 can be set to a universal interface for engaging with the fastening member 3, and it is not necessary to engage and engage the protective cover with other structural members, and it is not necessary to match the mounting frame 20, so that the versatility of the protective member for different battery modules 10 can be improved, the types of the protective cover 1 can be reduced, and the cost can be reduced.

In some embodiments, as shown in fig. 6, the first connecting portion includes one of the first catch 13 and the catch hole 211 provided on the cover body 1', and the second connecting portion includes the other of the first catch 13 and the catch hole 211, and the first catch 13 is engaged with the catch hole 211 to restrict the protective cover 1 from being disengaged with respect to the catch 2 in the axial direction of the fastener 3.

For example, the first connecting portion includes a first buckle 13 disposed on the inner wall of the end plate 12 of the cover 1', the second connecting portion includes a buckle hole 211 disposed on the buckle 2, and the first buckle 13 is inserted into the buckle hole 211 to limit the protective cover 1 from being separated from the buckle 2 along the axial direction of the fastener 3, so as to connect the buckle 2 and the protective cover 1. The engaging member 2 and the protective cover 1 may be inseparable after installation or detachably connected.

The embodiment realizes the connection of the clamping piece 2 and the protective cover 1 by arranging the clamping structure, is easy to assemble, can improve the installation efficiency of the protective component, has higher connection reliability, and is not easy to separate.

In some embodiments, as shown in fig. 6, the first connecting portion includes a first latch 13, the first latch 13 includes a first main body 131 and hooks 132, the hooks 132 are disposed on the outer periphery of the first main body 131, and the hooks 132 may extend along the entire outer periphery of the first main body 131 or be disposed at intervals along the outer periphery of the first main body 131. The first body portion 131 may be cylindrical, and has a first end connected to the cover 1', another end extending toward the fastening member 3, and the first body portion 131 and the fastening member 3 are spaced apart from each other.

The engaging member 2 further includes a second main body portion 21, the second connecting portion includes a locking hole 211 formed on the second main body portion 21, the locking hole 211 is a stepped hole, the first buckle 13 is inserted into the stepped hole, and the step 211' of the stepped hole limits the hook 132 to limit the first buckle 13 to be separated from the stepped hole. After the hook 132 is inserted into the stepped hole, a gap may be formed between the hook 132 and the step 211' to prevent the engaging element 2 and the protective cover 1 from being subjected to additional stress, and to allow the engaging element 2 and the protective cover 1 to rotate along the circumferential direction of the fastening element 3, so as to adjust the installation angle of the protective cover 1.

In this embodiment, the step hole is provided to cooperate with the hook 132 to realize the engagement, and the step 211' can prevent the first latch 13 from coming off, so as to improve the reliability of the connection between the engaging member 2 and the protecting cover 1.

In some embodiments, as shown in fig. 7, the first connection portion further includes a second latch 14 disposed on the cover 1 ', and the second latch 14 and the first latch 13 may be disposed on the same side wall of the cover 1', for example, both disposed on the end plate 12. The engaging member 2 further includes a second main body portion 21, the second connecting portion further includes a third latch 22 disposed on the second main body portion 21, and the second latch 14 is latched with the third latch 22 to limit the protective cover 1 to rotate along the circumferential direction of the fastening member 3 relative to the engaging member 2.

The embodiment can limit the rotation of the protective cover 1 relative to the fastener 2 along the circumferential direction of the fastener 3 by the clamping of the second buckle 14 and the third buckle 22, and the structure is easy to assemble without adding other additional structural components.

On the basis that the first buckle 13 is embedded into the clamping hole 211 to limit the protective cover 1 and the clamping piece 2 to be separated along the axial direction of the fastening piece 3, the second buckle 14 and the third buckle 22 are clamped to limit the protective cover 1 to rotate relative to the clamping piece 2 along the circumferential direction of the fastening piece 3, so that the protective cover 1 can be reliably fixed, and the protective cover 1 is prevented from rotating or being separated.

In some embodiments, as shown in fig. 7 to 9, the second catch 14 is disposed in a ring shape, for example, the second catch 14 and the first catch 13 may be disposed coaxially. The fastener 2 includes the second main part 21 that is the column, and the one end of second main part 21 orientation fastener 3 is equipped with recess 212, and fastener 3 includes head 31, and recess 212 is used for holding head 31, and the periphery at second main part 21 is established to third buckle 22, and second buckle 14 cover is established outside the second main part 21 and is buckled with third buckle 22. The card hole 211, the groove 212 and the second main body portion 21 may be coaxially disposed, the card hole 211 and the groove 212 are respectively located at two ends of the second main body portion 21, and a preset distance may be spaced between bottoms of the card hole 211 and the groove 212.

This embodiment can reduce the size of the engaging piece 2 occupied in the axial direction of the fastening piece 3, thereby making the mounting and connecting structure of the protective cover 1 more compact.

In some embodiments, the first connecting portion includes a first latch 13, the first latch 13 is disposed on the cover 1' and located in a central region of the second latch 14, and the second connecting portion includes a latch hole 211, and the latch hole 211 is disposed at an end of the second main body portion 21 away from the fastening member 3.

In this embodiment, the second buckle 14 is concentrically disposed at the periphery of the first buckle 13, so that the engaging member 2 is located between the second buckle 14 and the first buckle 13, the circumferential degree of freedom can be limited by clamping the outer-layer second buckle 14 and the third buckle 22, and the axial degree of freedom can be limited by embedding the inner-layer first buckle 13 into the clamping hole 211 of the engaging member 2, thereby realizing reliable connection between the engaging member 2 and the protective cover 1.

In some embodiments, as shown in fig. 7 and 10, the head 31 has a first limiting surface 311, and a second limiting surface 212 'is disposed on a sidewall of the groove 212, and the first limiting surface 311 cooperates with the second limiting surface 212' to limit the rotation of the engaging member 2 relative to the fastening member 3. One or more first position-limiting surfaces 311 may be provided, and the number of the second position-limiting surfaces 212' matches the number of the first position-limiting surfaces 311. For example, the first position-limiting surface 311 and the second position-limiting surface 212' may be flat surfaces, curved surfaces, or the like.

For example, the head 31 of the fastener 3 may be a hexagonal head, and accordingly, the head 31 has six first limiting surfaces 311, and correspondingly, the side wall of the groove 212 is also provided with six second limiting surfaces 212', and the shape of the groove 212 is matched with that of the head 31.

This embodiment can further restrict the relative rotation between the engaging piece 2 and the head 31 of the fastening piece 3 on the basis of restricting the rotation between the protective cover 1 and the engaging piece 2 by the engagement, and therefore can reliably prevent the protective cover 1 from rotating around the axial direction of the fastening piece 3, and realize the position fixation of the protective cover 1 relative to the fastening piece 3, so as to mount and fix the protective cover 1 by the fastening piece 3.

In some embodiments, as shown in fig. 10, the inner wall of the recess 212 is provided with a resilient gripping member 213, the gripping member 213 being configured to grip the head 31 of the fastener 3.

For example, if the groove 212 is provided with a plurality of second limiting surfaces 212 'along the circumferential direction, the clamping member 213 can be arranged on each second limiting surface 212', so that the head 31 of the fastening member 3 can be centrally positioned in the groove 212, and the reliability of clamping the second buckle 14 with the third buckle 22 can be improved. Two clamping pieces 213 can be arranged on each second limiting surface 212' at intervals along the axial direction of the fastener 3 so as to reduce the shaking amount of the head 31 of the fastener 3 in the groove 212 and improve the connection stability.

For example, the fastening member 213 may be an elastic piece, two ends of which are spaced along the axis of the fastening member 3 and are fixed to the second limiting surface 212', and a middle section of which protrudes toward the center of the groove 212.

In this embodiment, after the head 31 of the fastening member 3 is fitted into the groove 212, the head 31 can be clamped by the clamping member 213, so that the reliability and firmness of the installation of the protective cover 1 are improved, the stability of the fixation of the engaging member 2 and the head 31 of the fastening member 3 is ensured, and the engaging member 2 is prevented from being separated from the fastening member 2 due to the left-right shaking. Moreover, the size of the groove 212 can be made slightly larger than the size of the head 31, so that the head 31 can be easily fitted into the groove 212, and the retainer 213 is elastically deformed in the retaining state.

In some embodiments, as shown in fig. 8, the second catch 14 includes a plurality of first pawls 142 arranged at circumferentially spaced intervals. Specifically, the second buckle 14 includes a third main body portion 141 and a plurality of elastic first claws 142, the third main body portion 141 is of a cylindrical structure and is disposed coaxially with the fastening member 3, a first end of the third main body portion 141 is connected to the end plate 12 of the cover body 1', one end of each of the plurality of first claws 142 is connected to a second end of the third main body portion 141, the other end of each of the first claws 142 is a free end, and the first claws 142 may be of an elongated structure and extend in the axial direction of the fastening member 3.

As shown in fig. 10, the third latch 22 includes a plurality of elastic second claws 22 'circumferentially spaced on the outer wall of the second body 21, and the plurality of second claws 22' may be connected to an end of the outer wall of the second body 21 away from the latch hole 211 or an end close to the output pole 30. The plurality of first claws 142 and the plurality of second claws 22' are alternately arranged to realize engagement. The second catch 22' is located radially outwardly of the recess 212.

This embodiment can restrict the relative rotation between the protective cover 1 and the engaging piece 2 by the alternate engagement of the first claw 142 and the second claw 22', to improve the reliability of the protective cover 1 in the mounted state.

In some embodiments, as shown in fig. 8, the first jaw 142 is provided with a slope 1421 along the radial inner side of the second catch 14, and the slope 1421 makes the inner side surface of the first jaw 142 gradually expand from inside to outside along the axial direction of the fastener 3.

In the embodiment, in a state that the first claws 142 are engaged with the second claws 22 ', the first claws 142 are circumferentially located between adjacent second claws 22', and if an angle of the protective cover 1 in a plane perpendicular to the axial direction of the fastener 3 is to be adjusted, a rotational acting force can be applied to the protective cover 1, since the inner side surfaces of the first claws 142 are provided with the inclined surfaces 1421, the first claws 142 are radially and outwardly spread by the second claws 22 'during rotation, and after the protective cover 1 is rotated to a proper position, the first claws 142 fall between the adjacent second claws 22', so that circumferential limitation is formed again, and the installation reliability of the protective cover 1 at the position is ensured. This makes it possible to arbitrarily adjust the mounting angle of the protective cover 1.

In some embodiments, as shown in fig. 10-12, the outer side surface of the second jaw 22 'is tapered from the second body portion 21 to the free end in the axial direction of the fastener 3 so that the second jaw 22' is embedded between adjacent first jaws 142.

The embodiment designs the plurality of second claws 22 ' into a divergent shape, so that the parts of the second claws 22 ' near the free ends are inserted between the adjacent first claws 142 to be reliably clamped, and the connection strength between the second claws 22 ' and the second body part 21 can be increased, and the second claws 22 ' are prevented from being broken by applying force to the second claws 22 ' when the protective cover 1 is rotated.

In some embodiments, the engaging portion 221 includes a plurality of engaging slots 2211, the plurality of engaging slots 2211 are correspondingly disposed inside the free ends of the plurality of second claws 22', and the fastening member 3 includes: the connecting portion 32, the flange portion 33, and the head portion 31, the flange portion 33 is axially connected between the connecting portion 32 and the head portion 31, and the card slot 2211 is configured to be clamped at a radially outer end of the flange portion 33.

The locking slot 2211 may be an arc-shaped slot, such as an arc-shaped slot, recessed inward on the inner side surface of the second jaw 22'. The attachment portion 32 is adapted to be inserted into a mounting hole of the output pole 30 and the mounting frame 20, the head portion 31 is adapted to apply a force to the fastener 3, for example, the head portion 31 may be a hex head to apply a screwing force through a tool, and the flange portion 33 is sized larger than the head portion 31 to provide a larger support surface on the output pole 30 to improve attachment strength. For example, the fastening member 3 is a screw, the connecting portion 32 may be a screw rod, which passes through a through hole of the output pole 30 and a threaded hole of the mounting frame 20, the flange portion 33 abuts on the mounting frame 20, and the head portion 31 is fitted into the groove 212.

In the embodiment, the fastening piece 3 with the flange part 33 is adopted, and the clamping groove 2211 at the free end of the second jaw 22' is clamped at the radial outer end of the flange part 33, so that the clamping of the clamping piece 2 and the fastening piece 3 can be realized by fully utilizing the structure of the fastening piece 3, and the flange part 33 is not influenced to abut against the installation frame 20, thereby realizing the installation and fixation of the protection cover 1, and the structure is simple and the connection is reliable.

In some embodiments, as shown in fig. 13, the cover 1' is a rectangular parallelepiped and has four side plates 11 and an end plate 12 connected to one end of the four side plates 11, the end plate 12 is disposed opposite to the fastening member 3, the first opening 111 is disposed on one of the side plates 11, at least one of the remaining side plates 11 has a shutter 112, the shutter 112 can be opened to form a second opening 114, and the second opening 114 is configured to allow the output electrode 30 to be led out from the inner cavity.

The side panel 11 may include a main body panel 115 and a baffle 112, and a part of the side edge of the baffle 112 is connected to the main body panel 115 through a strength reducing portion 113, for example, the strength reducing portion 113 may be an intermittently arranged connecting portion, or a continuous strip-shaped connecting portion with a reduced thickness. When the baffle plate 112 has a rectangular shape, the baffle plate 112 is connected to the main body plate 115 via the strength reducing portion 113 by the side edge near the end plate 12. When the output pole 30 needs to be led out from the protective cover 1, the corresponding baffle 112 is removed to expose the second opening 114, so that the strength of the protective cover 1 can be ensured in the process of installing the protective cover 1, the installation is convenient, and the baffle 112 can be prevented from damaging the output pole 30 after the assembly is completed and the removal is carried out. Alternatively, the shutters 112 may be rotatably connected to the body plate 115 to allow the shutters 112 to be opened outward when the output pole 30 is extended, and this structure may flexibly open the corresponding shutters 112 according to the use requirement.

In this embodiment, the baffle plates 112 are disposed on the side plate 11 except for the first opening 111, so that the output poles 30 can be led out from a specific direction, and at most three baffle plates 112 can be disposed, so that the output poles 30 need to be led out from a specific direction, and the corresponding baffle plates 112 are removed, so that the requirement that the output poles 30 in the battery module 10 are led out from different directions can be flexibly met, and the universality is improved.

In some embodiments, as shown in fig. 3, the mounting frame 20 is configured to accommodate a plurality of battery cells 10 ', and includes two first plates 20A oppositely disposed in the second direction y and two second plates 20B oppositely disposed in the first direction x, a top surface of the second plate 20B may be lower than the first plate 20A by a predetermined height so as to leave a space for the protection member, and the output electrode 30 may be bent downward after being led out from the electrode terminal to extend along a side surface of the battery cell 10', and then bent to extend along a top surface of the second plate 20B and be fastened to the second plate 20B by the fastening member 3.

The protective cover 1 and the engaging member 2 are two separate parts and can be manufactured by an injection molding process.

When the assembly is carried out, first, the first buckle 13 of the protective cover 1 is inserted into the buckle hole 211 of the buckle 2 to connect the protective cover 1 and the buckle 2, and at this time, the protective cover 1 and the buckle 2 can rotate relatively. Then, the protective cover 1 and the engaging member 2 are pressed downward along the third direction z, so that the head 31 of the fastening member 3 is clamped into the groove 212, and the rotation of the engaging member 2 relative to the fastening member 3 is limited between the groove 212 and the head 31 by the cooperation of the first limiting surface 311 and the second limiting surface 212'. Meanwhile, the plurality of elastic first claws 142 and the plurality of elastic second claws 22' are alternately engaged to limit the rotation of the engaging member 2 relative to the protective cover 1 in the plane perpendicular to the third direction z, and the plurality of card slots 2211 are engaged at the outer end of the flange portion 33 in the radial direction to clamp the engaging member 2 and the fastening member 3. For example, the card slot 2211 has a circular arc shape and engages with a circular arc surface of the flange portion 33 along the radially outer end.

When the installation angle of the protection cover 1 needs to be adjusted in a plane perpendicular to the third direction z, the protection cover 1 is rotated, because the inner side surface of the first claw 142 is provided with the inclined surface 1421, the elastic first claw 142 is radially and outwardly spread by the second claws 22 'during rotation, and after the protection cover 1 rotates to a proper position, the first claw 142 falls between the adjacent second claws 22', circumferential limitation is formed again, and the installation reliability of the protection cover 1 at the position is ensured. When it is desired to bring the output pole 30 out from a particular orientation, the baffles 112 on the respective side plates 11 can be removed to expose the second openings 114. The output pole 30 is shown in fig. 3 as being drawn in a first direction x, as shown in solid lines, and optionally the output pole 30 is also shown as being drawn in a second direction y, as shown in dashed lines.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit 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 be modified or some technical features may be equivalently replaced, but the modifications or the replacements do not cause the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (15)

1. A protective member for protecting an output electrode (30) of a battery (100), comprising:

a fastener (3) for locking the output pole (30);

the protective cover (1) comprises a cover body (1 ') and a first connecting part, wherein the cover body (1') is provided with an inner cavity, the first connecting part is connected to the cover body (1 ') and is positioned in the inner cavity, one side of the cover body (1') is provided with a first opening (111), and the first opening (111) is used for allowing the output electrode (30) to penetrate into the inner cavity from the outside; and

the clamping piece (2) is arranged in the inner cavity, the clamping piece (2) comprises a second connecting portion and a clamping portion (221), the second connecting portion is connected with the first connecting portion, and the clamping portion (221) is clamped with the fastening piece (3).

2. The protection member according to claim 1, wherein the first connecting portion comprises one of a first catch (13) and a catch hole (211) provided on the cover body (1'), the second connecting portion comprises the other of the first catch (13) and the catch hole (211), and the first catch (13) engages with the catch hole (211) to restrict the protective cover (1) from being disengaged with respect to the catch (2) in the axial direction of the fastener (3).

3. The protective member according to claim 2, wherein the first connecting portion comprises the first catch (13), the first catch (13) comprises a first main body portion (131) and a catch (132), the catch (132) is provided at an outer periphery of the first main body portion (131);

the clamping piece (2) further comprises a second main body portion (21), the second connecting portion comprises a clamping hole (211) formed in the second main body portion (21), the clamping hole (211) is a stepped hole, the first buckle (13) is inserted into the stepped hole, and the step (211') of the stepped hole limits the hook (132) so as to limit the first buckle (13) to be separated from the stepped hole.

4. The protective member according to any one of claims 1 to 3, wherein the first connecting portion further comprises a second latch (14) provided on the cover (1'), the engaging member (2) further comprises a second main body portion (21), the second connecting portion further comprises a third latch (22) provided on the second main body portion (21), and the second latch (14) is engaged with the third latch (22) to restrict the protective cover (1) from rotating relative to the engaging member (2) in the circumferential direction of the fastening member (3).

5. The protection member according to claim 4, wherein the second buckle (14) is annularly disposed, the engaging member (2) includes a second cylindrical main body portion (21), a groove (212) is disposed at an end of the second main body portion (21) facing the fastener (3), the fastener (3) includes a head (31), the groove (212) is used for accommodating the head (31), the third buckle (22) is disposed at an outer periphery of the second main body portion (21), and the second buckle (14) is sleeved outside the second main body portion (21) and is clamped with the third buckle (22).

6. The protective member according to claim 5, wherein the head (31) has a first limiting surface (311), the side wall of the groove (212) is provided with a second limiting surface (212 '), and the first limiting surface (311) and the second limiting surface (212') cooperate to limit the rotation of the engaging member (2) relative to the fastening member (3).

7. The protection member according to claim 5, characterized in that an inner wall of the recess (212) is provided with a resilient clamping member (213), the clamping member (213) being configured to clamp the head (31) of the fastener (3).

8. The protective member according to claim 5, wherein the first connecting portion comprises a first catch (13), the first catch (13) being provided on the cover body (1') in a central region of the second catch (14), and the second connecting portion comprises a catch hole (211), the catch hole (211) being provided on the second body portion (21) at an end remote from the fastener (3).

9. The protection member according to claim 5, characterized in that said second catch (14) comprises a plurality of first jaws (142) circumferentially spaced apart, and said third catch (22) comprises a plurality of second jaws (22 ') circumferentially spaced apart on an outer wall of said second body portion (21), said plurality of first jaws (142) and said plurality of second jaws (22') being arranged alternately to effect the catch.

10. The protection member according to claim 9, characterized in that said first jaw (142) is provided with a chamfer (1421) along the radially inner side of said second catch (14), said chamfer (1421) making the inner side of said first jaw (142) divergent from the inside to the outside in the axial direction of said fastener (3).

11. The protective member according to claim 9, characterized in that the outer side of the second jaw (22 ') is divergent in the axial direction of the fastener (3) from the second body portion (21) to a free end, so that the second jaw (22') is embedded between adjacent first jaws (142).

12. The protective member according to claim 9, wherein said engaging portion (221) comprises a plurality of engaging grooves (2211), a plurality of said engaging grooves (2211) being provided correspondingly inside free ends of a plurality of said second jaws (22'), said fastening member (3) comprising: a connecting portion (32), a flange portion (33), and a head portion (31), the flange portion (33) being connected between the connecting portion (32) and the head portion (31) in an axial direction, the card slot (2211) being configured to be caught at a radially outer end of the flange portion (33).

13. A protective member according to any one of claims 1 to 3, wherein the cover body (1') is a rectangular parallelepiped and has four side plates (11) and an end plate (12) connected to one end of the four side plates (11), the end plate (12) is disposed opposite to the fastening member (3), the first opening (111) is provided in one of the side plates (11), and the remaining at least one side plate (11) has a flap (112), the flap (112) is openable to form a second opening (114), and the second opening (114) is configured to allow the output electrode (30) to be led out from the inner cavity.

14. A battery (100) comprising a battery module (10), the battery module (10) comprising:

a mounting frame (20) having a receiving cavity;

a plurality of battery cells (10') disposed within the receiving cavity;

an output electrode (30) for outputting or inputting the electric energy of the plurality of battery cells (10'); and

the protective member according to any one of claims 1 to 13, for protecting the output pole (30).

15. An electric consumer, characterized in that it comprises a battery (100) according to claim 14, said battery (100) being adapted to provide electric energy to said electric consumer.

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