Battery packs and power devices

Abstract

The present application discloses a battery pack and an electrical device. The battery pack includes a housing, a battery cell module, a locking component, a first elastic component and an actuating component. The housing includes a first side wall, and the first side wall is provided with a first through hole. The battery cell module is accommodated in the housing. The locking component is connected to the first side wall, and the locking component includes a first protrusion, and the first protrusion can pass through the first through hole and protrude to the outside of the housing. The first elastic component is arranged between the locking component and the battery cell module, and one end of the first elastic component is arranged at the battery cell module. The actuating component is connected to the housing and abuts against the locking component, and the actuating component is configured to be able to drive the first protrusion to pass through the first through hole. In an embodiment of the present application, one end of the first elastic component is arranged at the battery cell module, and the first elastic component and the battery cell module can be installed in the housing together during the assembly process, which can simplify the positioning process of the first elastic component and improve the assembly efficiency.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a battery pack and an electrical device. Background Art

[0002] Rechargeable cells are batteries that can be recharged to activate the active material after the cells are discharged and continue to be used. Rechargeable cells are widely used in electronic devices, such as mobile phones, laptops, etc.

[0003] A battery pack usually includes multiple cells to meet the voltage requirements of electronic devices. In the development of battery technology, how to improve the assembly efficiency of battery packs has always been a research direction in the industry. Summary of the invention

[0004] The present application provides a battery pack and an electrical device, which can improve the assembly efficiency of the battery pack.

[0005] In a first aspect, the present application provides a battery pack, comprising a housing, a battery cell module, a locking component, a first elastic component and an actuating component. The housing comprises a first side wall, and the first side wall is provided with a first through hole. The battery cell module is accommodated in the housing. The locking component is connected to the first side wall, and the locking component comprises a first protrusion, and the first protrusion can pass through the first through hole and protrude to the outside of the housing. The first elastic component is arranged between the locking component and the battery cell module, and one end of the first elastic component is arranged at the battery cell module. The actuating component is connected to the housing and abuts against the locking component, and the actuating component is configured to be able to drive the first protrusion to pass through the first through hole.

[0006] In the embodiment of the present application, the part of the first protrusion protruding to the outside of the shell is used to cooperate with the external structure to achieve the connection between the battery pack and the external structure. The actuating component can drive the first protrusion to move under the action of external force, so that the first protrusion protrudes to the outside of the shell or retracts to the inside of the shell, thereby switching the battery pack and the external structure between the locked state and the unlocked state. When the locking component moves under the drive of the actuating component, the first elastic component can be adaptively elastically deformed so that the first protrusion is retracted to the inside of the shell, so that the battery pack and the external structure can be unlocked. When the external force applied to the actuating component is released, the elastic force of the first elastic component can push and support the locking component so that the first protrusion passes through the first through hole and protrudes to the outside of the shell, and maintains the locked state between the battery pack and the external structure. One end of the first elastic component is arranged on the battery module, and the first elastic component and the battery module can be installed together in the shell during the assembly process, which can simplify the positioning process of the first elastic component and improve the assembly efficiency.

[0007] In some embodiments, the housing includes a first shell and a second shell connected to the first shell, the first shell and the second shell form a containing chamber, and the battery cell module is contained in the containing chamber.

[0008] In some embodiments, the battery cell module includes a bracket and a plurality of battery cells, the bracket is fixed to the housing, and the plurality of battery cells are fixed to the bracket. One end of the first elastic component is fixed to the bracket.

[0009] The bracket can protect and fix the battery core. The first elastic component is fixed and supported by the bracket, which can limit the first elastic component from squeezing the battery core and reduce the risk of the battery core being crushed.

[0010] In some embodiments, a first recess is provided on a side of the bracket facing the locking component. The battery core and the first side wall are arranged opposite to each other along a first direction. In the first direction, the side wall of the first recess overlaps with a portion of the first elastic component located in the first recess.

[0011] The first recess can accommodate a portion of the first elastic component to position the first elastic component; in the first direction, the side wall of the first recess overlaps with the portion of the first elastic component located in the first recess, and the side wall of the first recess can limit the first elastic component in the first direction, thereby reducing the risk of the first elastic component escaping from the first recess in the first direction.

[0012] In some embodiments, an opening is formed at one end of the first recess along the second direction, and the second direction is perpendicular to the first direction. The housing further comprises a second side wall, which is arranged opposite to the first side wall along the first direction, and the second side wall is provided with a protrusion, which is arranged opposite to the opening along the second direction. The protrusion can be used to limit the movement of the first elastic component in the second direction, thereby reducing the risk of the first elastic component escaping from the first recess through the opening.

[0013] In some embodiments, the first elastic component is a spring, which has a simple structure, low cost and is easy to assemble.

[0014] In some embodiments, the locking component also includes a first part and a second part, the first part is rotatably connected to the housing, the second part is connected to the first part, the first elastic component is arranged between the second part and the battery cell module, and the first protrusion protrudes from the surface of the second part away from the first elastic component.

[0015] In some embodiments, the locking component further includes a second protrusion, the second protrusion protrudes from the second portion, and at least a portion of the first elastic component surrounds the outer side of the second protrusion. The second protrusion extends into the first elastic component, and can limit the first elastic component in the first direction, thereby reducing the risk of the first elastic component coming out from between the second portion and the battery module.

[0016] In some embodiments, a rotating shaft is provided at one end of the first part away from the second part, a fixing hole is provided on the first side wall, the rotating shaft extends into the fixing hole and is rotatably connected to the first side wall. When the first part rotates around the rotating shaft, the second part approaches or moves away from the first side wall, thereby driving the first protrusion to move in the first through hole.

[0017] In some embodiments, the second part includes a first inclined surface, the first inclined surface abuts against the actuating component, and the first inclined surface can achieve a conversion of the movement direction, thereby converting the movement of the actuating component into the movement of the first part.

[0018] In some embodiments, the housing is provided with a limiting portion, and the limiting portion is connected to the first side wall. Along the first direction, the limiting portion and the first part are spaced apart, and the projection of the limiting portion overlaps with the projection of the first part. The limiting portion can limit the moving distance of the first part, and limit the excessive movement of the first part to cause the locking component to squeeze the battery module, thereby reducing the risk of the battery module being crushed and improving safety.

[0019] In some embodiments, the housing includes a third side wall disposed adjacent to the first side wall, and the third side wall is provided with a second through hole. The actuating component includes a first actuating portion and a second actuating portion, at least a portion of the first actuating portion is accommodated in the second through hole, and is movably connected to the third side wall along the second through hole; the second actuating portion is accommodated in the housing, and the second actuating portion is connected to the first actuating portion and is used to abut against the locking component.

[0020] The second through hole exposes the first actuating part so that the user can drive the first actuating part. The hole wall of the second through hole can also guide the first actuating part to limit the movement direction of the first actuating part. The second actuating part is used to drive the locking component to move.

[0021] In some embodiments, the battery pack further includes a second elastic component, the housing further includes a fifth protrusion protruding from the first side wall, one end of the second elastic component is connected to the fifth protrusion, and the other end is connected to the second actuating portion. The second elastic component is disposed between the fifth protrusion and the second actuating portion; when an external force pushes the first actuating portion, the second elastic component is compressed; when the external force disappears, the second elastic component pushes the second actuating portion and the first actuating portion to return the actuating component to its initial position.

[0022] In some embodiments, the second actuating portion is provided with a receiving hole, the second elastic component is disposed in the receiving hole, and the fifth protrusion is located in the receiving hole.

[0023] In some embodiments, the second actuating portion includes a second inclined surface, and the second inclined surface abuts against the locking component.

[0024] In some embodiments, the housing is provided with a third convex portion and a fourth convex portion disposed around the second through hole on the inner side of the third side wall, and the fourth convex portion protrudes from the end surface of the third convex portion. The first actuating portion abuts against the end surface of the third convex portion, the first actuating portion is provided with a first slot, and the fourth convex portion is provided in the first slot. The third convex portion and the fourth convex portion can increase the stroke of the first actuating portion moving along the third side wall, making the guiding function of the housing more reliable and stable. The cooperation of the fourth convex portion and the first slot can limit the rotation of the first actuating portion, thereby improving stability.

[0025] In some embodiments, the battery cell module includes a bracket and a plurality of battery cells, the bracket is fixed to the housing, and the plurality of battery cells is fixed to the bracket. The bracket includes a bracket body and a support portion protruding from the bracket body, and the second actuating portion is disposed on the support portion. The support portion can separate the second actuating portion from the bracket body to reduce the contact area between the second actuating portion and the bracket, thereby reducing friction resistance, making the movement of the actuating component smoother, and reducing the risk of jamming.

[0026] In a second aspect, an embodiment of the present application provides an electrical device, comprising: an electrical main body, provided with a second card slot; and a battery pack provided by any embodiment of the first aspect, the battery pack being connected to the electrical main body and used to provide electrical energy to the electrical main body, and the second card slot being configured to accommodate at least a portion of the first protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0028] Figure 1 A schematic diagram of the structure of a battery pack provided in one embodiment of the present application;

[0029] Figure 2 for Figure 1 An exploded schematic diagram of the battery pack shown;

[0030] Figure 3 for Figure 1 A schematic cross-sectional view of a battery pack shown;

[0031] Figure 4 for Figure 3 An enlarged schematic diagram of the battery pack shown at the circle A;

[0032] Figure 5 for Figure 1 A schematic diagram of a three-dimensional structure of a portion of a battery pack shown;

[0033] Figure 6 for Figure 5 An enlarged schematic diagram at the circle B;

[0034] Figure 7A schematic diagram of the structure of a bracket and a first elastic component of a battery pack provided in an embodiment of the present application;

[0035] Figure 8 for Figure 7 An enlarged schematic diagram at the circle C;

[0036] Fig. 9 for Figure 1 A schematic diagram of a three-dimensional structure of another part of the battery pack shown;

[0037] Fig.10 for Fig. 9 An enlarged schematic diagram at the circle D;

[0038] Fig.11 A schematic structural diagram of a first shell of a battery pack housing provided in one embodiment of the present application;

[0039] Fig.12 A schematic diagram of the structure of a locking component of a battery pack provided in one embodiment of the present application;

[0040] Fig.13 A cross-sectional schematic diagram of a battery pack provided in an embodiment of the present application, wherein a first protrusion of a locking component of the battery pack protrudes to the outside of the housing;

[0041] Fig.14 for Fig.13 An enlarged schematic diagram at the circle E;

[0042] Fig.15 for Fig.13 A schematic diagram of the battery pack shown in another state, wherein the first protrusion is received in the housing;

[0043] Fig.16 for Fig.15 An enlarged schematic diagram at the circle F;

[0044] Fig.17 A schematic diagram of the structure of an actuating component of a battery pack provided in one embodiment of the present application;

[0045] Fig.18 A schematic diagram of the structure of an electric device provided in one embodiment of the present application;

[0046] Fig.19 for Fig.18 An exploded schematic diagram of an electrical device shown;

[0047] Fig. 20 A schematic diagram of the structure of an electric device provided in an embodiment of the present application, wherein the battery pack and the electric main body are in a locked state;

[0048] Fig.21 for Fig. 20An enlarged schematic diagram at the circle G;

[0049] Fig. 22 A schematic diagram of the structure of an electric device provided in an embodiment of the present application, wherein the battery pack and the electric main body are unlocked;

[0050] Fig.23 for Fig. 22 An enlarged schematic diagram at circle H.

[0051] In the drawings, the drawings are not necessarily drawn to scale.

[0052] 1. Shell; 1a. First side wall; 1b. Second side wall; 1c. Third side wall; 11. First through hole; 12. First connecting portion; 13. Position limiting portion; 14. Second through hole; 15. Third convex portion; 16. Fourth convex portion; 17. Second concave portion; 18. Protruding portion; 19. Fifth convex portion; 10a. First shell; 10b. Second shell; 111. Fixing hole;

[0053] 2. battery cell module; 21. bracket; 211. first recess; 212. opening; 213. second connection portion; 214. bracket body; 215. support portion; 22. battery cell; 23. circuit board;

[0054] 3. Locking member; 31. First part; 311. Rotating shaft; 32. Second part; 321. First inclined surface; 33. First convex part; 34. Second convex part;

[0055] 4. a first elastic component;

[0056] 5. Actuating member; 51. First actuating portion; 511. First slot; 52. Second actuating portion; 521. Accommodating hole; 522. Second inclined surface;

[0057] 6. a second elastic member;

[0058] 2000, power consumption subject; 2100, second card slot;

[0059] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0061] The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship. In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments.

[0062] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0063] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] In the embodiments of the present application, "parallel" includes not only the absolutely parallel situation, but also the roughly parallel situation conventionally recognized in engineering; at the same time, "perpendicular" also includes not only the absolutely perpendicular situation, but also the roughly perpendicular situation conventionally recognized in engineering. For example, if the angle between two directions is 80°-90°, the two directions can be considered perpendicular; if the angle between two directions is 0°-10°, the two directions can be considered parallel.

[0065] The battery pack 1000 of the present application is described in detail below with reference to the accompanying drawings.

[0066] like Figures 1 to 4 As shown, the battery pack 1000 of the embodiment of the present application includes a shell 1, a battery module 2, a locking component 3, a first elastic component 4 and an actuating component 5. The shell 1 includes a first side wall 1a, and the first side wall 1a is provided with a first through hole 11. The battery module 2 is accommodated in the shell 1. The locking component 3 is connected to the first side wall 1a. The locking component 3 includes a first protrusion 33, and the first protrusion 33 can pass through the first through hole 11 and protrude to the outside of the shell 1. The first elastic component 4 is arranged between the locking component 3 and the battery module 2, and one end of the first elastic component 4 is arranged at the battery module 2. The actuating component 5 is connected to the shell 1 and abuts against the locking component 3, and the actuating component 5 is configured to be able to drive the first protrusion 33 to pass through the first through hole 11.

[0067] In the embodiment of the present application, the portion of the first protrusion 33 protruding to the outside of the housing 1 is used to cooperate with an external structure (such as an electrical main body) to achieve the connection between the battery pack 1000 and the external structure. The actuating component 5 can drive the first protrusion 33 to move under the action of an external force, so that the first protrusion 33 protrudes to the outside of the housing 1 or retracts to the inside of the housing 1, thereby switching the battery pack 1000 and the external structure between a locked state and an unlocked state. When the locking component 3 moves under the drive of the actuating component 5, the first elastic component 4 can adaptively elastically deform so that the first protrusion 33 is retracted to the inside of the housing 1, so that the battery pack 1000 and the external structure can be unlocked. When the external force applied to the actuating component 5 is released, the elastic force of the first elastic component 4 can push and support the locking component 3, so that the first protrusion 33 passes through the first through hole 11 and protrudes to the outside of the housing 1, and maintains the locked state between the battery pack 1000 and the external structure. One end of the first elastic component 4 is disposed on the battery module 2 , and the first elastic component 4 and the battery module 2 can be installed together in the housing 1 during the assembly process, which can simplify the positioning process of the first elastic component 4 and improve assembly efficiency.

[0068] The housing 1 forms a housing chamber for housing the battery module 2. The housing 1 can protect the battery module 2 from the outside to limit the influence of liquid or other foreign matter on the charging or discharging of the battery module 2.

[0069] The battery module 2 includes a plurality of battery cells 22 to provide a single module with higher voltage and capacity. The plurality of battery cells 22 can be connected in series, in parallel, or in mixed connection. Mixed connection means that the plurality of battery cells 22 are connected in series and in parallel.

[0070] The battery cell 22 includes a packaging bag and an electrode assembly encapsulated in the packaging bag, and the electrode assembly includes a positive electrode sheet, a negative electrode sheet, and a separator. The battery cell 22 mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet. The battery cell 22 can be a lithium ion battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, a magnesium ion battery cell, or other types of battery cells, which are not limited in the embodiments of the present application.

[0071] The first side wall 1a is located at one side of the battery cell module 2. The battery cell 22 and the first side wall 1a are arranged along the first direction X opposite to each other.

[0072] The locking member 3 can perform linear motion, rotation or other composite motion relative to the first side wall 1a, as long as the first protrusion 33 can pass through the first through hole 11. The first protrusion 33 can pass through the first through hole 11 and protrude to the outside of the housing 1, or can be retracted into the inside of the housing 1 through the first through hole 11. Optionally, the first protrusion 33 is retracted into the inside of the housing 1, which means that the first protrusion 33 does not protrude from the outer surface of the housing 1.

[0073] For example, one end of the first elastic component 4 is fixed to the battery module 2; for example, the first elastic component 4 can be fixed to the battery module 2 by clamping, bonding, welding or other methods. The other end of the first elastic component 4 can abut against the locking component 3 to support the locking component 3.

[0074] The actuating member 5 is a control member that can be used to adjust the position of the first protrusion 33 to switch the connection state between the battery pack 1000 and the power-consuming subject. Exemplarily, the actuating member 5 is exposed to the outside of the housing 1 so that the user can apply external force to the actuating member 5 .

[0075] In some embodiments, the housing 1 includes a first shell 10a and a second shell 10b connected to the first shell 10a. The first shell 10a and the second shell 10b form a receiving chamber, and the battery cell module 22 is received in the receiving chamber.

[0076] The first shell 10a and the second shell 10b can be connected as a whole by bonding, fastener connection or other means to cover each other and jointly define a receiving cavity for receiving the battery cell module 22.

[0077] In some embodiments, the first side wall 1 a is a part of the first shell 10 a , and the actuating component 5 is disposed in the first shell 10 a .

[0078] In some embodiments, the assembly method of the battery pack 1000 may include the following steps: installing the first elastic component 4 to the battery cell module 2 to form a battery cell assembly; installing the battery cell assembly to the second shell 10b; assembling the locking component 3, the actuating component 5 and the first shell 10a together to form a shell assembly; connecting the shell assembly to the second shell 10b.

[0079] During the process of the shell assembly and the second shell 10 b , the first elastic component 4 has been pre-installed on the battery cell module 2 , and there is no need to position the first elastic component 4 , which is beneficial to improving assembly efficiency.

[0080] In some embodiments, the battery module 2 includes a bracket 21 and a plurality of battery cells 22. The bracket 21 is fixed to the housing 1, and the plurality of battery cells 22 are fixed to the bracket 21. One end of the first elastic component 4 is fixed to the bracket 21.

[0081] In this embodiment, the bracket 21 can protect and fix the battery cell 22. The first elastic component 4 is fixed and supported by the bracket 2, which can limit the first elastic component 4 from squeezing the battery cell 22, thereby reducing the risk of the battery cell 22 being crushed.

[0082] In some embodiments, the bracket 21 can be connected to the first shell 10a and the second shell 10b by bonding, snapping, fastener connection, etc.

[0083] In some embodiments, the battery cell module 2 further includes a circuit board 23 , which is fixed to the bracket 21 and electrically connected to the battery cell 22 to control the charging and discharging of the battery cell 22 .

[0084] like Figures 5 to 8 As shown, in some embodiments, a first recess 211 is provided on one side of the bracket 21 facing the locking component 3. The first recess 211 and the locking component 3 are arranged opposite to each other along the first direction X. In the first direction X, the side wall of the first recess 211 overlaps with the portion of the first elastic component 4 located in the first recess 211.

[0085] In this embodiment, the first recess 211 can accommodate a portion of the first elastic component 4 to position the first elastic component 4; in the first direction X, the side wall of the first recess 211 overlaps with the portion of the first elastic component 4 located in the first recess 211, and the side wall of the first recess 211 can limit the first elastic component 4 in the first direction X, thereby reducing the risk of the first elastic component 4 escaping from the first recess 211 in the first direction X.

[0086] In some embodiments, an opening 212 is formed at one end of the first recess 211 along the second direction Y, and the second direction Y is perpendicular to the first direction X. The housing 1 further includes a second side wall 1b, which is arranged opposite to the first side wall 1a along the first direction X, and a protrusion 18 is provided on the second side wall 1b, which is arranged opposite to the opening 212 along the second direction Y, and the protrusion 18 can be used to limit the movement of the first elastic component 4 in the second direction Y, thereby reducing the risk of the first elastic component 4 escaping from the first recess 211 through the opening 212.

[0087] In this embodiment, the first elastic component 4 can be inserted into the first recess 211 through the opening 212 , so as to facilitate the assembly of the first elastic component 4 and the bracket 21 .

[0088] In some embodiments, the first elastic component 4 is a spring, which has a simple structure, low cost and is easy to assemble.

[0089] Exemplarily, the first elastic component 4 is a coil spring, and the coil axis of the coil spring is parallel to the first direction X. In the battery pack 1000 , the first elastic component 4 is in a compressed state.

[0090] Please refer to Figure 4 , Figures 9 to 12 In some embodiments, the locking component 3 further includes a first portion 31 and a second portion 32. The first portion 31 is rotatably connected to the housing 1. The second portion 32 is connected to the first portion 31, the first elastic component 4 is disposed between the second portion 32 and the battery module 22, and the first protrusion 33 protrudes from the surface of the second portion 32 away from the first elastic component 4.

[0091] Exemplarily, a rotating shaft 311 is provided at one end of the first portion 31 away from the second portion 32, a fixing hole 111 is provided on the first side wall 1a, and the rotating shaft 311 extends into the fixing hole 111 and is rotatably connected to the housing 1. When the first portion 31 rotates around the rotating shaft 311, the second portion 32 approaches or moves away from the first side wall 1a, thereby driving the first protrusion 33 to move in the first through hole 11.

[0092] In some embodiments, two first parts 31 may be provided, and the second part 32 is connected to the two first parts 31. The two first parts 31 can improve the stability of the movement of the locking component 3. Optionally, each first part 31 is provided on the rotating shaft 311, and the first side wall 1a is provided with two fixing holes 111.

[0093] In some embodiments, the locking component 3 further includes a second protrusion 34 , the second protrusion 34 protrudes from the second portion 32 , and at least a portion of the first elastic component 4 surrounds the outer side of the second protrusion 34 .

[0094] In this embodiment, the second protrusion 34 extends into the first elastic component 4 , and can limit the first elastic component 4 in the first direction X, thereby reducing the risk of the first elastic component 4 escaping from between the second portion 32 and the battery module 2 .

[0095] In some embodiments, the moving direction of the first portion 31 is perpendicular to the moving direction of the actuating member 5 .

[0096] In some embodiments, the second portion 32 includes a first inclined surface 321 , and the actuating component 5 abuts against the first inclined surface 321 .

[0097] In this embodiment, the first inclined surface 321 can achieve the conversion of the movement direction, thereby converting the movement of the actuating component 5 into the movement of the first part 31 .

[0098] In some embodiments, the actuating member 5 can move along the third direction Z. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0099] In some embodiments, the angle between the first inclined surface 321 and the first direction X and the angle between the first inclined surface 321 and the direction opposite to the third direction Z are both acute angles.

[0100] In some embodiments, the housing 1 is provided with a limiting portion 13, and the limiting portion 13 is connected to the first side wall 1a. Along the first direction X, the projection of the limiting portion 13 overlaps with the projection of the first portion 31, and the limiting portion 13 can limit the moving distance of the first portion 31, and limit the excessive movement of the first portion 31 to cause the locking component 3 to squeeze the battery module 2, thereby reducing the risk of the battery module 2 being crushed and improving safety. Along the first direction X, the limiting portion 13 and the first portion 31 are spaced apart.

[0101] In some embodiments, the limiting portion 13 is L-shaped.

[0102] In some embodiments, the housing 1 is provided with a first connection portion 12, and the first connection portion 12 is provided on the inner surface of the first side wall 1a. Figure 7 As shown, the bracket 21 is provided with a second connecting portion 213 , and the second connecting portion 213 is connected to the first connecting portion 12 to achieve fixation of the bracket 21 and the housing 1 .

[0103] In some embodiments, the second connection part 213 is a hollow cylindrical structure, and contains an adhesive inside; the first connection part 12 is inserted into the second connection part 213 and bonded to the second connection part 213 by the adhesive.

[0104] In this embodiment, the bracket 21 and the housing 1 are connected by an adhesive, which can save fasteners, simplify the structure of the battery pack 1000, and improve assembly efficiency.

[0105] Please refer to Fig.10 , Fig.11 , Figures 13 to 17 In some embodiments, the housing 1 includes a third side wall 1c disposed adjacent to the first side wall 1a, and the third side wall 1c is provided with a second through hole 14. The actuating component 5 includes a first actuating portion 51 and a second actuating portion 52, at least a portion of the first actuating portion 51 is accommodated in the second through hole 14, and is movably connected to the third side wall 1c along the second through hole 14. The second actuating portion 52 is accommodated in the housing 1, and the second actuating portion 52 is connected to the first actuating portion 51 and is used to abut against the locking component 3.

[0106] In this embodiment, the second through hole 14 exposes the first actuating portion 51, so that the user can drive the first actuating portion 51. The hole wall of the second through hole 14 can also guide the first actuating portion 51 to limit the movement direction of the first actuating portion 51. The second actuating portion 52 is used to drive the locking component 3 to move.

[0107] In some embodiments, the third side wall 1c and the first side wall 1a are integrally formed.

[0108] In some embodiments, the central axis of the second through hole 14 is parallel to the third direction Z.

[0109] In some embodiments, the battery pack 1000 further includes a second elastic component 6 , the housing 1 further includes a fifth protrusion 19 protruding from the first side wall 1 a , one end of the second elastic component 6 is connected to the fifth protrusion 19 , and the other end is connected to the second actuating portion 52 .

[0110] In this embodiment, the second elastic component 6 is arranged between the fifth protrusion 19 and the second actuating portion 52; when an external force pushes the first actuating portion 51, the second elastic component 6 is compressed; when the external force disappears, the second elastic component 6 pushes the second actuating portion 52 and the first actuating portion 51 to restore the actuating component 5 to its initial position.

[0111] In some embodiments, the second elastic component 6 is a return spring.

[0112] In some embodiments, the second actuating portion 52 is provided with a receiving hole 521 , the second elastic component 6 is disposed in the receiving hole 521 , and the fifth protrusion 19 is located in the receiving hole 521 .

[0113] In some embodiments, the second actuating portion 52 includes a second inclined surface 522, and the second inclined surface 522 is used to abut against the second portion 32. The second inclined surface 522 of the second actuating portion 52 is arranged opposite to the first inclined surface 321 of the second portion 32. Optionally, the second inclined surface 522 and the first inclined surface 321 are in contact and connected.

[0114] In some embodiments, the housing 1 is provided with a third protrusion 15 and a fourth protrusion 16 on the inner side of the third side wall 1c, the third protrusion 15 is provided around the second through hole 14, and the fourth protrusion 16 protrudes from the end surface of the third protrusion 15. The first actuating portion 51 abuts against the end surface of the third protrusion 15, the first actuating portion 51 is provided with a first slot 511, and the fourth protrusion 16 is provided in the first slot 511. The third protrusion 15 and the fourth protrusion 16 can increase the travel of the first actuating portion 51 along the third side wall 1c, making the guiding function of the housing 1 more reliable and stable. The cooperation of the fourth protrusion 16 and the first slot 511 can limit the rotation of the first actuating portion 51, thereby improving stability.

[0115] In some embodiments, the battery module 22 includes a bracket 21 and a plurality of battery cells 22, the bracket 21 is fixed to the housing 1, and the plurality of battery cells 22 are fixed to the bracket 21. The bracket 21 includes a bracket body 214 and a support portion 215 protruding from the bracket body 214, and the second actuating portion 52 is disposed on the support portion 215.

[0116] In this embodiment, the support portion 215 can separate the second actuating portion 52 from the bracket body 214 to reduce the contact area between the second actuating portion 52 and the bracket 21, thereby reducing friction resistance, making the movement of the actuating component 5 smoother and reducing the risk of jamming.

[0117] In some embodiments, the support portion 215 is a strip structure extending along the third direction Z.

[0118] like Fig.13 and Fig.14 As shown, in a normal state, the first protrusion 33 protrudes to the outside of the housing 1. Fig.15and Fig.16 As shown, when the user presses the first actuating portion 51, the second actuating portion 52 moves in a direction opposite to the third direction Z and squeezes the second portion 32, and the second portion 32 drives the first convex portion 33 to move, so that the first convex portion 33 is retracted into the first through hole 11. When the user removes the external force, under the action of the first elastic component 4 and the second elastic component 6, the first convex portion 33 protrudes to the outside of the housing 1, and the first actuating portion 51 returns to the initial position.

[0119] like Figures 18 to 23 As shown, the embodiment of the present application further provides an electric device, which includes a battery pack 1000 and an electric main body 2000. The electric main body 2000 is provided with a second card slot 2100. The battery pack 1000 is connected to the electric main body 2000 and is used to provide electric energy to the electric main body 2000, and the second card slot 2100 is configured to receive at least part of the first protrusion 33.

[0120] The battery pack 1000 may be the battery pack provided by any of the above embodiments.

[0121] The power-consuming subject 2000 can realize the set functions under the drive of electric energy. The power-consuming device can be a mobile phone, a portable device, a laptop computer, an electric toy, an electric tool, etc. The electric tool includes a metal cutting electric tool, a cleaning tool, etc., for example, an electric drill, an electric wrench, a vacuum cleaner, a sweeping robot, etc. The embodiment of the present application does not impose any special restrictions on the above-mentioned power-consuming devices.

[0122] For example, the electric device may be a vacuum cleaner. Specifically, the electric main body 2000 may include a motor, blades, a dust storage chamber and other structures; the battery pack 1000 is electrically connected to the motor and provides power to the motor; the motor drives the blades to rotate to form negative pressure and suck dust into the dust storage chamber.

[0123] like Fig. 20 and 21 As shown, in a normal state, at least a portion of the first protrusion 33 is inserted into the second slot 2100, so that the battery pack 1000 is locked to the power-consuming body 2000, thereby achieving locking between the battery pack 1000 and the power-consuming body 2000. Fig. 22 and Fig.23 As shown, when the battery pack 1000 needs to be removed, the first actuating portion 51 is pressed; the second actuating portion 52 is driven by the first actuating portion 51 to squeeze the second portion 32, and the second portion 32 drives the first protrusion 33 to move so that the first protrusion 33 is retracted into the first through hole 11; after the first protrusion 33 is disengaged from the second slot 2100, the lock between the battery pack 1000 and the power-consuming body 2000 is released, and the battery pack 1000 can be removed at this time.

[0124] In some embodiments, the housing 1 is further provided with a second recess 17, and the power-consuming body 2000 is movably disposed in the second recess 17 along the second direction Y. The first protrusion 33 protrudes from the bottom wall of the second recess 17 and is inserted into the second slot 2100 to limit the movement of the power-consuming body 2000 relative to the battery pack 1000 along the second direction Y.

[0125] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery pack, characterized in that: include: The housing comprises a first side wall, wherein the first side wall is provided with a first through hole; A battery cell module is contained in the housing, wherein the battery cell module comprises a bracket and a plurality of battery cells, wherein the bracket is fixed to the housing, and the plurality of battery cells are fixed to the bracket; a locking member connected to the first side wall, the locking member comprising a first portion, a second portion and a first protrusion, the first portion being rotatably connected to the housing, the second portion being connected to the first portion, and the first protrusion being able to pass through the first through hole and protrude to the outside of the housing; a first elastic component, disposed between the second portion and the bracket, one end of the first elastic component being fixed to the bracket, and the first protrusion protruding from a surface of the second portion facing away from the first elastic component; as well as An actuating component is connected to the housing and abuts against the locking component, and the actuating component is configured to drive the first protrusion to pass through the first through hole.

2. The battery pack according to claim 1, characterized in that: A first recess is provided on a side of the bracket facing the locking component; The battery core and the first side wall are arranged opposite to each other along a first direction; In the first direction, a side wall of the first recess overlaps with a portion of the first elastic component located in the first recess.

3. The battery pack according to claim 2, characterized in that: An opening is formed at one end of the first recess along a second direction, and the second direction is perpendicular to the first direction; The housing further includes a second side wall, the second side wall is arranged opposite to the first side wall along the first direction, the second side wall is provided with a protrusion, and the protrusion is arranged opposite to the opening along the second direction.

4. The battery pack according to claim 1, characterized in that: The first elastic component is a spring.

5. The battery pack according to claim 1, characterized in that: The locking component further includes a second protrusion, the second protrusion protrudes from the second portion, and at least a portion of the first elastic component surrounds an outer side of the second protrusion.

6. The battery pack according to claim 1, characterized in that: A rotating shaft is disposed at one end of the first part away from the second part, and a fixing hole is disposed on the first side wall. The rotating shaft extends into the fixing hole and is rotatably connected to the first side wall.

7. The battery pack according to claim 1, characterized in that: The second portion includes a first inclined surface that abuts against the actuating member.

8. The battery pack according to claim 1, characterized in that: The housing is provided with a limiting portion, and the limiting portion is connected to the first side wall; Along the first direction, the limiting portion and the first portion are spaced apart, and a projection of the limiting portion overlaps with a projection of the first portion.

9. The battery pack according to claim 1, characterized in that: The housing comprises a third side wall disposed adjacent to the first side wall, and the third side wall is provided with a second through hole; The actuating component includes a first actuating portion and a second actuating portion, wherein at least a portion of the first actuating portion is accommodated in the second through hole and is movably connected to the third side wall along the second through hole; the second actuating portion is accommodated in the outer shell, and the second actuating portion is connected to the first actuating portion and is used to abut against the locking component.

10. The battery pack according to claim 9, characterized in that: The battery pack further includes a second elastic component, the housing further includes a fifth protrusion protruding from the first side wall, one end of the second elastic component is connected to the fifth protrusion, and the other end is connected to the second actuating portion.

11. The battery pack according to claim 10, characterized in that: The second actuating portion is provided with a receiving hole, the second elastic component is arranged in the receiving hole, and the fifth protrusion is located in the receiving hole.

12. The battery pack according to claim 9, characterized in that: The second actuating portion includes a second inclined surface, and the second inclined surface abuts against the locking component.

13. The battery pack according to claim 9, characterized in that: The housing is provided with a third convex portion and a fourth convex portion arranged around the second through hole on the inner side of the third side wall, and the fourth convex portion protrudes from the end surface of the third convex portion; The first actuating portion abuts against an end surface of the third convex portion, the first actuating portion is provided with a first clamping groove, and the fourth convex portion is arranged in the first clamping groove.

14. The battery pack according to claim 9, characterized in that: The bracket includes a bracket body and a support portion protruding from the bracket body, and the second actuating portion is arranged on the support portion.

15. An electrical device, characterized in that: include: The power-consuming body is provided with a second card slot; as well as According to the battery pack according to any one of claims 1 to 14, the battery pack is connected to the power-consuming entity and is used to provide electrical energy to the power-consuming entity, and the second card slot is configured to accommodate at least a portion of the first protrusion.

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