CN220400822U - Output electrode protection assembly, battery and power utilization device - Google Patents

Abstract

The embodiment of the application provides an output pole protection component, battery and power consumption device, the output pole protection component includes pedestal and lid, the pedestal has installation face and the bottom surface that sets up in opposite directions, the installation face is used for installing the output electrode, the lid closes in the pedestal, one of pedestal and lid is equipped with the spout, the other is equipped with the convex part, at least part of convex part can get into in the spout along first direction and with spout sliding fit in first direction, in the assembled state of lid and pedestal, the spout can restrict the convex part and follow the second direction motion, the second direction is on a parallel with the range direction of installation face to bottom surface, wherein, the second direction is crossing with first direction, the diapire of at least one spout is sunken and forms the concave part, the other of lid and pedestal is equipped with at least one elastic part, the elastic part is used for following the convex part and slides along the diapire of spout, and block in the concave part under the elastic action. The method and the device can improve the reliability of the battery.

Description

Output electrode protection assembly, battery and power utilization device

Technical Field

The present application relates to the field of battery technology, and more particularly, to an output pole protection assembly, a battery, and an electrical device.

Background

Batteries are widely used in electronic devices such as cellular phones, notebook computers, battery cars, electric vehicles, electric airplanes, electric ships, electric toy vehicles, electric toy ships, electric toy airplanes, electric tools, and the like.

In the development of battery technology, how to improve the reliability of a battery is one of the research directions in battery technology.

Disclosure of Invention

The application provides an output electrode protection component, a battery and an electric device, which can improve the reliability of the battery.

The embodiment of the application provides an output electrode protection assembly, including pedestal and lid, the pedestal has installation face and the bottom surface that sets up in opposite directions, the installation face is used for installing output electrode, the lid fits in the pedestal and encloses with the pedestal and establish the chamber that holds that is used for holding output electrode, one of them is equipped with the spout, the other is equipped with the convex part, at least part of convex part can get into in the spout along first direction and with spout sliding fit in first direction, under the assembled state of lid and pedestal, the spout can restrict the convex part and follow the second direction motion, the second direction is parallel to the range direction of installation face to bottom surface, wherein, the diapire of at least one spout is sunken and forms the concave part, the other of lid and pedestal is equipped with at least one elastic part, the elastic part is used for following the convex part and slides along the diapire of spout, and block under the elastic action and arrange in the concave part.

In the above technical solution, the cover and the base of the output electrode protection assembly according to the embodiments of the present application utilize the sliding groove and the protruding portion to be in sliding fit in the first direction, that is, when the cover and the base are assembled, the cover is slidably mounted in the base along the first direction, and then the elastic portion is clamped in the recessed portion, so that the cover and the base form a limit in the first direction and in the width direction of the sliding groove (the third direction described below) with each other. Besides, the sliding groove can also limit the convex part to move along the second direction, so that the cover body and the base body are fixed. Compared with the scheme that the cover body and the base body are fixed through the buckle, whether gaps exist between the elastic part and the two opposite side walls of the concave part along the first direction or not due to manufacturing tolerance and the like, the two side walls of the concave part can limit the elastic part in the first direction, so that the possibility that the cover body falls off from the base body is reduced, the risk of short-circuiting is further reduced, and the reliability of the battery is improved.

In some embodiments, the resilient portion is connected to the protrusion.

In the above technical solution, at least part of the elastic part also extends into the chute to move together with the convex part, so that the elastic part is connected with the convex part, thereby facilitating processing and manufacturing.

In some embodiments, the elastic portion includes an elastic portion and a limiting portion, the elastic portion has two opposite ends, one end of the elastic portion is connected to the protrusion, the limiting portion is connected to the other end of the elastic portion and protrudes from the elastic portion in a direction that the elastic portion slides into the recess, at least part of the elastic portion and at least part of the limiting portion can move in the chute along with the protrusion, and the limiting portion can be clamped in the recess under the elastic action of the elastic portion.

In the technical scheme, the elastic part is arranged to comprise the elastic part and the limiting part, the limiting part protrudes out of the elastic part along the direction that the elastic part slides into the concave part, the elastic part is matched with the concave part through the limiting part, and the adaptation with the concave part to a higher degree can be realized through the size of the limiting part, so that the reliability is high.

In some embodiments, the number of the protrusions slidingly engaged with the same chute is at least two, the at least two protrusions include a first protrusion and a second protrusion adjacent to each other, the first protrusion and the second protrusion are disposed at intervals along the first direction, and the elastic portion is located between the first protrusion and the second protrusion and connected to the first protrusion.

In the technical scheme, the second convex parts are arranged, so that the number of the convex parts in sliding fit with the sliding grooves can be increased, and the tightness of the connection between the cover body and the base body is improved.

In some embodiments, the resilient portion is spaced apart from the second protrusion.

In the technical scheme, the elastic part and the second convex part are arranged at intervals, so that interference of the second convex part on the elastic part can be reduced, and the elastic part can conveniently enter the concave part.

In some embodiments, the stop portion has a guide ramp for guiding the stop portion to slide out of the recess.

In the technical scheme, the guide inclined plane is arranged, and when the output electrode needs to be maintained or replaced, the cover body and the seat body can be opened by using the guide inclined plane, so that the maintenance or replacement of the output electrode is realized.

In some embodiments, in the second direction, the other one of the cover and the base is provided with a relief space for elastic deformation of the at least one elastic portion. The avoidance space is arranged to enable the elastic part to deform, so that interference between the cover body or the seat body and the elastic part is reduced, and the cover body and the seat body are convenient to assemble.

In some embodiments, the cover is provided with a protrusion and the base is provided with a chute.

In the above-described aspect, since the cover is generally formed of a plurality of plate-like members, the protruding portion is provided in the cover, which is more convenient to manufacture than the case where the chute is provided. And the convex part slides into the chute, so that the operation is more convenient, and the installation efficiency is improved.

In some embodiments, the cover body comprises a substrate and a plurality of side plates, the substrate is used for facing the mounting surface, the plurality of side plates are connected to the substrate and enclose with the substrate to form at least part of accommodating cavities, the plurality of side plates comprise a first side plate and a second side plate which are oppositely arranged along a third direction, the number of the convex parts is a plurality of, at least one convex part is respectively arranged at one end, away from the substrate, of the first side plate and one end, away from the substrate, of the second side plate, the base body is provided with two sliding grooves, the first side plate and the second side plate are respectively matched with the two sliding grooves through the convex parts, and the first direction, the second direction and the third direction are intersected.

In the technical scheme, after the cover body and the base body are assembled, the convex parts on two sides can provide stable supporting effect for the cover body, the connection tightness of the cover body and the base body is improved, and the falling possibility of the cover body is reduced.

In some embodiments, the chute has a first opening disposed opposite the bottom wall of the chute, the first opening being disposed on a side of the housing facing the receiving cavity.

In the technical scheme, when the cover body is mounted to the base body, the cover body is convenient for operators to directly watch, so that the operation is convenient, and the mounting efficiency is improved.

In some embodiments, the two opposite side walls of the chute along the third direction are a first side wall and a second side wall, at least one of the first side wall and the second side wall is shaped to limit the protrusion from separating from the first opening, and the first direction, the second direction and the third direction intersect one another. The arrangement mode has higher reliability, and can effectively limit the movement of the convex part along the second direction. Compared with the scheme of limiting the movement of the convex part through the bottom wall of the chute, the sliding chute is more convenient to manufacture.

In some embodiments, the dimension of the chute in the third direction is tapered for at least a section in a direction from the bottom wall of the chute to the first opening.

So set up, utilize the section restriction of tapering to break away from first opening along the diapire of convex part spout to the direction of first opening, this kind of setting mode is convenient for make, has reduced cost of manufacture, and has higher reliability.

In some embodiments, one of the first side wall and the second side wall is disposed obliquely toward the other or the first side wall and the second side wall are disposed obliquely toward each other in a direction from the bottom wall of the chute to the first opening. The arrangement mode can be further convenient to manufacture, reduces manufacturing cost and has higher reliability.

In some embodiments, the base further includes two bosses, the two bosses are disposed on the mounting surface along the third direction at intervals, the two sliding grooves are respectively disposed on the two bosses, and the two bosses are used for limiting the output electrode in the third direction.

In the technical scheme, the sliding chute is arranged on the boss, and the limiting effect on the output electrode is formed by utilizing the two bosses, so that the guiding effect is provided for the installation of the output electrode. And also reduces the displacement of the output electrode during use.

In some embodiments, the sliding groove is provided with a first opening, the first opening is opposite to the bottom wall of the sliding groove, and the first openings of the two sliding grooves are respectively arranged on two opposite sides of the base body along the third direction.

In the technical scheme, in the assembled state, the convex parts are propped against two opposite side walls of the chute along the second direction, so that the displacement of the convex parts in the second direction is limited, and the reliability is higher.

In a second aspect, embodiments of the present application also provide a battery including at least one battery module, an output electrode protection assembly, and an output electrode. The output electrode protection component is arranged on the end plate. The output electrode is located in the accommodating cavity and connected to the base body, and the output electrode is electrically connected to the at least one battery module and used for outputting electric energy of the at least one battery module.

In a third aspect, an embodiment of the present application further provides an electrical device, including the above battery, where the battery is configured to provide electrical energy.

Drawings

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

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the present application;

fig. 2 is a schematic structural diagram of a battery provided in some embodiments of the present application;

fig. 3 is a schematic view of a partial structure of a battery according to some embodiments of the present application;

FIG. 4 is an enlarged view of FIG. 3 at A;

fig. 5 is a schematic structural diagram of a battery cell in a battery module of a battery according to some embodiments of the present disclosure;

FIG. 6 is a schematic structural diagram of an output electrode protection assembly according to some embodiments of the present disclosure;

FIG. 7 is a schematic diagram of a base of an output electrode protection assembly according to some embodiments of the present disclosure;

fig. 8 is a schematic structural diagram of a cover of an output electrode protection assembly according to some embodiments of the present application.

Reference numerals of the specific embodiments are as follows:

1. a vehicle; 2. a battery; 3. a controller; 4. a motor; 5. a battery module; 51. an end plate; 52. a side plate; 53. a battery cell; 6. a case; 61. a first portion; 62. a second portion; 7. an output electrode protection assembly; 8. an output electrode;

71. a base; 711. a mounting surface; 712. a bottom surface; 713. a boss;

72. a cover body; 721. a substrate; 722. a first side plate; 723. a second side plate; 724. a third side plate; 725. a fourth side plate;

73. A receiving chamber;

74. a chute; 741. a first opening; 742. a first sidewall; 743. a second sidewall;

75. a convex portion; 751. a first convex portion; 752. a second convex portion;

76. a concave portion;

77. an elastic part; 771. an elastic portion; 772. a limit part; 7721. a guide slope;

78. an avoidance space;

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

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The term "and/or" in this application is merely an association relation describing an associated object, and indicates that three relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In this application, the character "/" generally indicates that the associated object is an or relationship.

In the embodiments of the present application, the same reference numerals denote the same components, and in the interest of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the present application, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are illustrative only and should not be construed as limiting the present application in any way.

The term "plurality" as used herein refers to more than two (including two).

In the present application, the battery cells may include lithium ion secondary battery cells, lithium ion primary battery cells, lithium sulfur battery cells, sodium lithium ion battery cells, sodium ion battery cells, or magnesium ion battery cells, and the embodiment of the present application is not limited thereto. The battery cells may be cylindrical, flat, rectangular, or otherwise shaped, as well as the embodiments herein are not limited in this regard.

Reference to a battery in embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, or the like. The battery generally includes a case for enclosing one or more battery cells. The case body can prevent liquid or other foreign matters from affecting the charge or discharge of the battery cells.

The battery cell comprises an electrode assembly and electrolyte, wherein the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator. The battery cell mainly relies on metal ions to move between the positive pole piece and the negative pole piece to work. The positive electrode plate comprises a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer is coated on the surface of the positive electrode current collector; the positive electrode current collector comprises a positive electrode coating area and a positive electrode lug connected to the positive electrode coating area, wherein the positive electrode coating area is coated with a positive electrode active material layer, and the positive electrode lug is not coated with the positive electrode active material layer. Taking a lithium ion battery monomer as an example, the material of the positive electrode current collector can be aluminum, the positive electrode active material layer comprises a positive electrode active material, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate and the like. The negative electrode plate comprises a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector; the negative electrode current collector comprises a negative electrode coating area and a negative electrode tab connected to the negative electrode coating area, wherein the negative electrode coating area is coated with a negative electrode active material layer, and the negative electrode tab is not coated with the negative electrode active material layer. The material of the anode current collector may be copper, the anode active material layer includes an anode active material, and the anode active material may be carbon or silicon, or the like. The material of the separator may be PP (polypropylene) or PE (polyethylene), etc.

The battery is provided with an output electrode protection assembly which is generally arranged on an end plate of the battery module and used for installing an output electrode, and the output electrode is used for outputting electric energy of at least one battery module.

In the related art, the output electrode protection assembly generally includes a base and an upper cover, and the base and the upper cover are generally fixed by adopting a snap-fit manner. In this kind of mode, the preparation precision requirement to the buckle is higher, and after base and upper cover assembly, because reasons such as manufacturing tolerance, base and upper cover joint are relatively loose to lead to the lid to drop easily, make electrified parts such as output electrode expose to external environment, and then bring the risk of short circuit.

In view of this, the present application provides an output pole protection assembly that connects a cover and a base in a sliding fit manner using a protrusion and a chute, and restricts movement of the cover and the base in a sliding direction using an elastic portion and a recess, thereby achieving fixation of the cover and the base. Compared with the scheme that the cover body and the base body are fastened and fixed through the buckle, whether gaps exist between the elastic part and the two opposite side walls of the concave part along the first direction or not due to manufacturing tolerance and the like, the two side walls of the concave part can limit the protruding part in the first direction, so that the possibility that the cover body falls off from the base body is reduced, the risk of short-circuiting is further reduced, and the reliability of the battery is improved.

The output electrode protection assembly is applicable to batteries and power devices using the batteries.

The electric device may be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, or the like. The vehicle can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle; spacecraft including airplanes, rockets, space planes, spacecraft, and the like; the electric toy includes fixed or mobile electric toys, such as a game machine, an electric car toy, an electric ship toy, and an electric airplane toy; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railroad power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete shakers, and electric planers, among others. The embodiment of the application does not limit the electric device in particular.

For convenience of explanation, the following examples will be described taking an electric device as an example of a vehicle.

Fig. 1 is a schematic structural diagram of a vehicle according to some embodiments of the present application.

As shown in fig. 1, the interior of the vehicle 1 is provided with a battery 2, and the battery 2 may be provided at the bottom or at the head or at the tail of the vehicle 1. The battery 2 may be used for power supply of the vehicle 1, for example, the battery 2 may serve as an operating power source of the vehicle 1.

The vehicle 1 may further comprise a controller 3 and a motor 4, the controller 3 being arranged to control the battery 2 to power the motor 4, for example for operating power requirements during start-up, navigation and driving of the vehicle 1.

In some embodiments of the present application, the battery 2 may not only serve as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, providing driving power for the vehicle 1 instead of or in part instead of fuel oil or natural gas.

Fig. 2 is a schematic structural view of a battery according to some embodiments of the present application, fig. 3 is a schematic partial structural view of a battery according to some embodiments of the present application, fig. 4 is an enlarged view of a portion a in fig. 3, and fig. 5 is a schematic structural view of a battery cell in a battery module of a battery according to some embodiments of the present application.

As shown in fig. 2 to 5, the battery 2 includes at least one battery module 5, an output electrode protection assembly 7, and an output electrode 8. The output pole protection assembly 7 is mounted to the end plate 51. The output electrode 8 is disposed in the output electrode protection assembly 7, and the output electrode 8 is connected to the output electrode protection assembly 7 and is used for outputting the electric energy of at least one battery module 5.

The output electrode 8 of the embodiment of the present application may be a positive output electrode or a negative output electrode.

The battery module 5 includes a plurality of battery cells 53 and two end plates 51, the two end plates 51 are disposed opposite to each other along the length direction of the battery module 5, the number of the output electrode protection assemblies 7 is two, and the two output electrode protection assemblies 7 are disposed on the two end plates 51, respectively. Optionally, the battery module 5 further includes two side plates 52, the two side plates 52 are disposed opposite along the width direction of the battery module 5, two ends of the side plates 52 in the length direction of the battery module 5 are respectively connected to the two end plates 51, the two end plates 51 and the two side plates 52 enclose to form a rectangular frame structure, and the plurality of battery cells 53 are located in the rectangular frame.

Optionally, the battery 2 further includes a case 6, the case 6 has an accommodating space, and the battery module 5 is located in the accommodating space. In the battery 2, a plurality of battery cells 53 are first connected in series or parallel or series-parallel to form a battery module 5. Optionally, the plurality of battery modules 5 are connected in series, in parallel or in series-parallel to form a whole, and are fixed to the case 6.

By way of example, the case 6 may take a variety of configurations. In some embodiments, the case 6 may include a first portion 61 and a second portion 62, the first portion 61 and the second portion 62 being overlapped with each other, the first portion 61 and the second portion 62 together defining an accommodating space for accommodating the battery module 5. The second portion 62 may be a hollow structure having one end opened, the first portion 61 may be a plate-shaped structure, and the first portion 61 covers the opening side of the second portion 62, so that the first portion 61 and the second portion 62 together define an accommodating space; the first portion 61 and the second portion 62 may be hollow structures each having an opening at one side, and the opening side of the first portion 61 is engaged with the opening side of the second portion 62.

In one battery module 5, two output electrode protection assemblies 7 may be in one-to-one fit with two end plates 51, or one output electrode protection assembly 7 may be shared by a plurality of battery modules 5, or two output electrode protection assemblies 7 may be shared by a plurality of battery modules 5, or, of course, other situations where the output electrode protection assemblies 7 are in fit with the end plates 51 may be also possible.

The output electrode 8 and the output electrode protection component 7 in the embodiment of the present application may be connected by adopting a threaded connection or an adhesive connection, etc.

The output electrode protection assembly 7 and the end plate 51 in the embodiment of the present application may be connected by a clamping, bonding or threaded connection.

Fig. 6 is a schematic structural diagram of an output pole protection assembly according to some embodiments of the present application, fig. 7 is a schematic structural diagram of a base of the output pole protection assembly according to some embodiments of the present application, and fig. 8 is a schematic structural diagram of a cover of the output pole protection assembly according to some embodiments of the present application.

As shown in fig. 6-8, the present application also provides an output pole protection assembly 7, which includes a base 71 and a cover 72. The base 71 has a mounting surface 711 and a bottom surface 712 disposed opposite to each other, and the mounting surface 711 is used for mounting the output electrode 8. The cover 72 is covered on the base 71 and encloses a housing cavity 73 with the base 71 for housing the output electrode 8. One of the base 71 and the cover 72 is provided with a slide groove 74, and the other is provided with a protrusion 75, at least part of the protrusion 75 being capable of entering into the slide groove 74 in the first direction X and being slidably engaged with the slide groove 74 in the first direction X. In the assembled state of the cover 72 and the base 71, the slide groove 74 can restrict the movement of the protruding portion 75 in the second direction Y parallel to the arrangement direction of the mounting surface 711 to the bottom surface 712, where the second direction Y intersects the first direction X. The bottom wall of at least one chute 74 is recessed and forms a recess 76, the other of the cover 72 and the base 71 is provided with at least one resilient portion 77, the resilient portion 77 being adapted to follow the protrusion 75 to slide along the bottom wall of the chute 74 and to snap into the recess 76 under resilient action.

The number of the sliding grooves 74 in the embodiment of the present application may be one or two. Correspondingly, the number of the protruding portions 75 may be one or two. When the number of the slide grooves 74 is plural, only the bottom wall of one slide groove 74 may be provided with the concave portion 76, or the bottom wall of each slide groove 74 may be provided with the concave portion 76. Alternatively, the elastic portions 77 are in one-to-one correspondence with the concave portions 76.

In the present embodiment, the assembled state of the cover 72 and the base 71 means a state in which the cover 72 is fixed to the base 71 and encloses the accommodating chamber 73.

In the present embodiment, at least part of the protrusion 75 can enter the sliding groove 74 along the first direction X and slidably engage with the sliding groove 74 along the first direction X, that is, the sliding groove 74 extends along the first direction X, and at least one end of the sliding groove 74 along the first direction X has an opening into which the protrusion 75 slides. In the assembled state, the base 71 and the cover 72 have at least part of the protrusion 75 located in the slide groove 74.

In the present embodiment, the slide groove 74 is capable of restricting the movement of the protrusion 75 in the second direction Y, which means that the slide groove 74 restricts the protrusion 75 from being separated from the slide groove 74 in the direction from the mounting surface 711 to the bottom surface 712 and in the direction from the bottom surface 712 to the mounting surface 711. The bottom wall restricting protrusion 75 of the chute 74 may move in the second direction Y, or the side wall restricting protrusion 75 of the chute 74 may move in the second direction Y.

Alternatively, the first direction X is perpendicular to the second direction Y.

The bottom wall of the chute 74 in the embodiment of the present application is recessed and forms the recess 76, that is, the bottom wall of the chute 74 is recessed to a side facing away from the space in the chute 74 to form the recess 76, and the opening of the recess 76 is located at the bottom wall. The recess 76 in the embodiment of the present application is formed between two end portions of the bottom wall of the chute 74 opposite to each other in the first direction X, so as to form two opposite side walls in the first direction X, and both side walls can form a limiting effect on the elastic portion 77.

The elastic portion 77 of the embodiment of the present application is snapped into the concave portion 76 under the elastic action, which means that the elastic portion 77 is snapped into the concave portion 76 to stop sliding in the process of following the sliding of the convex portion 75 in the first direction X. When the elastic portion 77 is engaged with the concave portion 76, it may abut against at least one of the two side walls of the concave portion 76 facing in the first direction X, or may form a gap with both of them.

The elastic portion 77 in this embodiment of the present application has a certain elasticity, and can deform under the action of an external force, and recover at least part of the deformation after the external force disappears. For example, the elastic portion 77 may be a bent elastic piece, where the elastic piece is configured to slide along the bottom wall of the chute 74 along with the protrusion 75 and deform under the abutment action of the bottom wall of the chute 74, and when the elastic piece moves to the recess 76, the elastic piece recovers at least part of deformation and is clamped in the recess 76. Still further exemplary, the spring portion 77 may also be a spring that is in a compressed state following the sliding of the protrusion 75 along the bottom wall of the chute 74, and when moved to the recess 76, the spring releases at least a partial deformation and snaps into the recess 76.

The elastic portion 77 in the embodiment of the present application slides along the bottom wall of the chute 74, which means that the elastic portion 77 abuts against and slides on the bottom wall of the chute 74. In the assembled state, at least part of the spring 77 is located in the slot 74.

The elastic portion 77 in the embodiment of the present application may be connected to the protruding portion 75, or may be connected to the cover 72 or another region of the base 71.

Illustratively, in the use state of the battery 2, the output electrode protection assembly 7 is mounted on the top side of the end plate 51 in the vertical direction, the first direction X is the arrangement direction of the end plate 51 to the battery cells 53, and the second direction Y is the vertical direction.

Optionally, the cover 72 and the base 71 are made of an insulating material. Further alternatively, the cover 72 and the base 71 are made of a composite material of a plastic or a non-metal matrix. By the arrangement, the risk of short circuit between the output electrode protection assembly and the output electrode can be reduced, and the reliability of the output electrode protection assembly is improved.

The cover 72 and the base 71 of the output pole protection assembly 7 of the present embodiment are slidably engaged in the first direction X by the sliding groove 74 and the protruding portion 75, that is, when the cover 72 and the base 71 are assembled, the cover 72 is slidably mounted on the base 71 along the first direction X, and then the elastic portion 77 is clamped in the recess 76, so that the cover 72 and the base 71 form a limit position with each other in the first direction X and in the width direction (the third direction Z described below) of the sliding groove 74. In addition, the slide groove 74 can also restrict the movement of the protrusion 75 in the second direction Y, thereby achieving fixation of the cover 72 and the base 71. Compared with the solution that the cover 72 and the base 71 are fastened by the fastener, whether or not there is a gap between the two opposite side walls of the elastic portion 77 and the concave portion 76 along the first direction due to manufacturing tolerance or the like, the two side walls of the concave portion 76 can limit the elastic portion 77 in the first direction X, so that the possibility that the cover 72 falls off from the base 71 is reduced, the risk of short circuit is reduced, and the reliability of the battery 2 is improved.

In some embodiments, the resilient portion 77 is connected to the boss 75.

The elastic portion 77 of the present embodiment is connected to the convex portion 75, and is not indirectly connected through other structures. For example, the elastic portion 77 and the protrusion 75 may be integrally formed or bonded.

Since at least part of the elastic portion 77 also extends into the chute 74 to move together with the protrusion 75, the elastic portion 77 is connected to the protrusion 75, which is convenient for processing and manufacturing.

In some embodiments, the resilient portion 77 includes a resilient portion 771 and a limiting portion 772, the resilient portion 771 has opposite ends, one end of the resilient portion 771 is connected to the protrusion 75, the limiting portion 772 is connected to the other end of the resilient portion 771 and protrudes from the resilient portion 771 in a direction in which the resilient portion 77 slides into the recess 76, at least a portion of the resilient portion 771 and at least a portion of the limiting portion 772 can move in the chute 74 following the protrusion 75, and the limiting portion 772 can be snapped into the recess 76 under the resilient action of the resilient portion 771.

In the assembled state, the limiting portion 772 of the present embodiment may be partially or entirely clamped in the recess 76, and at least part of the elastic portion 771 is located in the chute 74.

The resilient portion 771 of embodiments of the present application may be rod-like, plate-like, or other shape. The shape of the stop portion 772 may be rectangular, spherical, or other shape.

Alternatively, the resilient portion 771 is integrally formed with the boss 75. Of course, the connection may be made by screw connection or the like.

Alternatively, the elastic portion 771 extends in the first direction X, i.e., the length direction of the elastic portion 771 is parallel to the first direction X.

When the protrusion 75 slides into the chute 74, the limiting portion 772 presses against the bottom wall of the chute 74, and the elastic portion 771 is elastically deformed. As the protrusion 75 continues to move to the recess 76 in the first direction X, the limiting portion 772 enters the recess 76 under the elastic action of the elastic portion 771 and is locked to opposite sidewalls of the recess 76 in the first direction X, and the elastic portion 771 returns to at least partially elastically deformed.

The elastic part 77 is provided to include an elastic part 771 and a limiting part 772, the limiting part 772 protrudes out of the elastic part 771 along the direction that the elastic part 77 slides into the concave part 76, the elastic part 77 is matched with the concave part 76 through the limiting part 772, and the high-degree adaptation with the concave part 76 can be realized through the size of the limiting part 772, so that the reliability is high.

In some embodiments, the number of the protrusions 75 slidably engaged with the same chute 74 is at least two, and at least two of the protrusions 75 include adjacent first protrusions 751 and second protrusions 752, the first protrusions 751 and second protrusions 752 being spaced apart along the first direction X, and the elastic portion 77 being located between the first protrusions 751 and the second protrusions 752 and being connected to the first protrusions 751.

The second protruding portion 752 in the embodiment of the present application may be disposed at a distance from the elastic portion 77, or may abut against the elastic portion.

The elastic portion 771 of the embodiment is connected to an end of the first protrusion 751 near the second protrusion 752, and the limiting portion 772 is connected to an end of the elastic portion 771 near the second protrusion 752.

Providing the second protrusions 752 increases the number of protrusions 75 that slidably engage with the slide grooves 74, thereby increasing the tightness of the connection of the cover 72 and the base 71.

In some embodiments, the resilient portion 77 is spaced apart from the second protrusion 752.

The elastic portion 77 and the second protruding portion 752 are arranged at intervals, so that interference of the second protruding portion 752 to the elastic portion 77 can be reduced, and the elastic portion 77 can conveniently enter the concave portion 76.

In some embodiments, the stop portion 772 has a guide ramp 772, the guide ramp 772 for guiding the stop portion 772 to slide out of the recess 76.

Illustratively, the guide ramps 772 serve to guide the stop portions 772 to slide out of the recesses 76 in the direction of the battery cells 53 to the end plate 51. Since the stopper 772 of the assembled battery 2 cannot slide out in the direction from the end plate 51 to the battery cell 53 due to the blocking effect of the output electrode 8, the guide slope 772 is provided to guide the stopper 772 to slide out in the direction from the battery cell 53 to the end plate 51, so that interference with the output electrode 8 can be reduced.

Alternatively, the surface of the side wall of the recess 76 that abuts against the guide slope 7721 that faces the guide slope 7721 is perpendicular to the first direction X. With this arrangement, the possibility of the resilient portion 77 slipping out of the recess 76 during use can be reduced.

The guiding inclined surface 7721 of the embodiment of the present application may be designed to use a large force to slide the limiting portion 772 out of the recess 76, but in a normal use state, the limiting portion 772 does not slide out of the recess 76 due to other external forces applied during use.

When the output electrode 8 needs to be maintained or replaced, the cover 72 and the base 71 can be opened by the guide inclined surface 7721, so that the maintenance or replacement of the output electrode 8 is realized.

In some embodiments, along the second direction Y, the other of the cover 72 and the base 71 is provided with a relief space 78 for elastically deforming the at least one elastic portion 77.

The other of the cover 72 and the base 71 of the embodiment of the present application refers to the cover 72 or the base 71 provided with the elastic portion 77.

Illustratively, the relief space 78 may be formed by a notch or recess provided in the cover 72 or the base 71.

The avoiding space 78 is provided to deform the elastic portion 77, and interference between the cover 72 or the base 71 and the elastic portion 77 is reduced, so that assembly of the cover 72 and the base 71 is facilitated.

In some embodiments, the cover 72 is provided with a protrusion 75 and the base 71 is provided with a chute 74.

Since the cover 72 is generally formed of a plurality of plate-like members, the protruding portion 75 is provided to the cover 72, which is more convenient to manufacture than providing the chute 74. And the protrusion 75 is slid into the slide groove 74 for more convenient operation, thereby improving the installation efficiency.

In some embodiments, the cover 72 includes a base 721 and a plurality of side plates, the base 721 is configured to face the mounting surface 711, the plurality of side plates are connected to the base 721 and enclose at least a portion of the accommodating cavity 73 with the base 721, the plurality of side plates include a first side plate 722 and a second side plate 723 that are disposed opposite to each other along a third direction Z, the number of the protrusions 75 is plural, at least one protrusion 75 is disposed at one end of the first side plate 722 facing away from the base 721 and one end of the second side plate 723 facing away from the base 721, two sliding grooves 74 are disposed at the base 71, the first side plate 722 and the second side plate 723 are respectively engaged with the two sliding grooves 74 through the protrusions 75, and the first direction X, the second direction Y and the third direction Z intersect two by two.

In this embodiment, the first side plate 722 and the second side plate 723 are disposed opposite to each other along the third direction Z, which does not mean that the first side plate 722 and the second side plate 723 are parallel to each other and perpendicular to the third direction Z, and the first side plate 722 may be disposed obliquely to the second side plate 723.

Illustratively, the plurality of side plates includes a third side plate 724 and a fourth side plate 725 disposed opposite along the first direction X, the fourth side plate 725 facing the battery cells 53 and being provided with a relief hole for the relief output electrode 8. Of course, the cover 72 may not be provided with the fourth side plate 725.

In this embodiment, when the plurality of protruding portions 75 are disposed at the end of the first side plate 722 facing away from the base plate 721 and the end of the second side plate 723 facing away from the base plate 721, the plurality of protruding portions 75 are all arranged along the first direction X.

Alternatively, the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

In the present embodiment, the first side plate 722 and the second side plate 723 are respectively slidably engaged with the two slide grooves 74 through the convex portions 75, which means that the first side plate 722 is slidably engaged with one of the slide grooves 74 through at least one convex portion 75, and the second side plate 723 is slidably engaged with the other slide groove 74 through at least one convex portion 75.

In the present embodiment, the concave portion 76 may be provided in the bottom wall of one of the slide grooves 74, or the concave portion 76 may be provided in the bottom wall of both slide grooves 74. Correspondingly, the elastic portion 77 may be provided on the first side plate 722 or the second side plate 723, and the first side plate 722 and the second side plate 723 may each be provided with the elastic portion 77.

The first side plate 722 is separated from the end of the base plate 721 and the second side plate 723 is separated from the end of the base plate 721, and the protruding portions 75 are respectively arranged at the end of the first side plate 722 and the end of the second side plate 723 separated from the base plate 721, so that after the cover 72 and the base 71 are assembled, the protruding portions 75 at two sides can provide stable supporting function for the cover 72, the connection tightness of the cover 72 and the base 71 is increased, and the falling possibility of the cover 72 is reduced.

In some embodiments, the chute 74 has a first opening 741, the first opening 741 being disposed opposite the bottom wall of the chute 74, the first opening 741 being disposed on a side of the housing 71 that faces the receiving chamber 73.

The first opening 741 is provided at an upper side of the base 71 in the vertical direction in the use state of the battery 2. The number of the sliding grooves 74 in the present embodiment is two, and the two sliding grooves 74 are arranged at intervals along the third direction Z.

So set up, when installing lid 72 to pedestal 71, the operating personnel of being convenient for directly watch to convenient operation improves the installation effectiveness.

Alternatively, the elastic portion 77 is connected to the protrusion 75, and the side of the second side plate 723 facing the elastic portion 77 is provided with the above-mentioned escape space 78, and the escape space 78 is used for escaping deformation of the elastic portion 77.

In some embodiments, two opposite side walls of the chute 74 along the third direction Z are a first side wall 742 and a second side wall 743, at least one of the first side wall 742 and the second side wall 743 is shaped to limit the protrusion 75 from disengaging from the first opening 741, and the first direction X, the second direction Y, and the third direction Z intersect two by two.

In this embodiment, the first side wall 742 and/or the second side wall 743 restrict the protrusion 75 from being separated from the chute 74 from above. Illustratively, the first side wall 742 is shaped to be disposed obliquely toward the second side wall 743 in a direction from the bottom wall of the chute 74 to the first opening 741, thereby restricting the protrusion 75 from being disengaged from the first opening 741 in a direction from the bottom surface 712 to the mounting surface 711. Still further exemplary, the first side wall 742 and/or the second side wall 743 are formed with protrusions toward each other, and the first side wall 742 and/or the second side wall 743 are disengaged from the first opening 741 by the protrusion-restricting protrusion 75 in a direction from the bottom surface 712 to the mounting surface 711.

The protrusion 75 is restricted from being separated from the chute 74 by at least one of the first side wall 742 and the second side wall 743, and the arrangement is highly reliable, so that the protrusion 75 can be effectively restricted from moving along the second direction Y. The manufacturing is easier than the case where the movement of the protrusion 75 is restricted by the bottom wall of the chute.

In other alternative embodiments, the bottom wall of the chute 74 is formed with a T-shaped protrusion, the lateral portion of the T-shaped protrusion is closer to the first opening 741 than the vertical portion, and a portion of the protrusion 75 extends into the side of the lateral portion of the T-shaped protrusion closer to the vertical portion and can abut against the side of the lateral portion closer to the vertical portion to achieve the restriction of the protrusion 75 from exiting the first opening 741.

In some embodiments, the dimension of the chute 74 along the third direction Z is tapered for at least a section from the bottom wall of the chute 74 to the first opening 741.

In this embodiment, the dimension of the chute 74 along the third direction Z may be gradually reduced from the bottom wall of the chute 74 to the first opening 741, and an expanding section may be included between two adjacent gradually reduced sections, a straight section may be included between two adjacent gradually reduced sections, or two adjacent gradually reduced sections are directly connected, but the gradually reduced degrees are different. When only one segment is tapered, the remaining segments may be flared or flattened. The dimension of the chute 74 in the third direction Z of the present embodiment may also be tapered in the direction from the bottom wall of the chute 74 to the first opening 741.

So arranged, the tapered segment is used for limiting the separation from the first opening 741 along the direction from the bottom wall of the chute 74 to the first opening 741 along the convex portion 75, the arrangement is convenient for manufacturing, the manufacturing cost is reduced, and the reliability is high.

In some embodiments, one of the first side wall 742 and the second side wall 743 is disposed obliquely toward the other or the first side wall 742 and the second side wall 743 are inclined toward each other in a direction from the bottom wall of the chute 74 to the first opening 741.

One of the first side wall 742 and the second side wall 743 is disposed obliquely toward the other, i.e., the dimension of the chute 74 in the third direction Z is tapered. The first and second sidewalls 742 and 743 are disposed obliquely toward each other and vice versa.

Optionally, the first side wall 742 and the second side wall 743 are both disposed obliquely toward each other. The degree of inclination of the first and second sidewalls 742 and 743 may be the same or different.

At least one of the first side wall 742 and the second side wall 743 is arranged to be inclined toward the other, which can further facilitate manufacturing, reduce manufacturing cost, and have higher reliability.

In some embodiments, the base 71 further includes two bosses 713, the two bosses 713 are disposed on the mounting surface 711 at intervals along the third direction Z, the two sliding grooves 74 are respectively disposed on the two bosses 713, and the two bosses 713 are used for limiting the output electrode 8 in the third direction Z.

Each boss 713 of the present embodiment is provided with one chute 74. The two bosses 713 may have the same shape or different shapes.

The chute 74 in this embodiment may extend through the boss 713 along the second direction Y and extend to other areas of the seat 71 along the second direction Y, or may be disposed only on the boss 713.

The slide groove 74 is provided on the boss 713, and the two bosses 713 form a stopper function for the output electrode 8, thereby providing a guide function for the installation of the output electrode 8. And also reduces the displacement of the output electrode 8 during use.

In some embodiments, the sliding groove 74 has a first opening 741, the first opening 741 is disposed opposite to the bottom wall of the sliding groove 74, and the first openings 741 of two sliding grooves 74 are disposed on opposite sides of the base 71 along the third direction Z.

In the example of the orientation in fig. 7, two first openings 741 are provided on the left and right sides of the base 71, respectively. Opposite side walls of the chute 74 of the present embodiment are arranged along the second direction Y.

The two first openings 741 are disposed on opposite sides of the base 71 along the third direction Z, so that in the assembled state, the protruding portion 75 abuts against opposite side walls of the chute 74 along the second direction Y, thereby limiting displacement of the protruding portion 75 in the second direction Y, and achieving high reliability.

The embodiment also provides a battery 2, wherein the battery 2 comprises at least one battery module 5, an output electrode protection assembly 7 and an output electrode 8. The output pole protection assembly 7 is mounted to the end plate 51. The output electrode 8 is located in the accommodating cavity 73 and connected to the base 71, and the output electrode 8 is electrically connected to the at least one battery module 5 and is used for outputting the electric energy of the at least one battery module 5.

The embodiment of the application also provides an electricity utilization device, which comprises the battery 2, wherein the battery is used for providing electric energy.

Referring to fig. 3-8, an output pole protection assembly 7 according to an embodiment of the present application includes a base 71 and a cover 72. The base 71 has a mounting surface 711 and a bottom surface 712 disposed opposite to each other, and the mounting surface 711 is used for mounting the output electrode 8. The cover 72 is covered on the base 71 and encloses a housing cavity 73 with the base 71 for housing the output electrode 8. One of the base 71 and the cover 72 is provided with a slide groove 74, and the other is provided with a protrusion 75, at least part of the protrusion 75 being capable of entering into the slide groove 74 in the first direction X and being slidably engaged with the slide groove 74 in the first direction X. In the assembled state of the cover 72 and the base 71, the slide groove 74 can restrict the movement of the protruding portion 75 in the second direction Y parallel to the arrangement direction of the mounting surface 711 to the bottom surface 712, where the second direction Y intersects the first direction X. The bottom wall of at least one chute 74 is recessed and forms a recess 76, the other of the cover 72 and the base 71 is provided with at least one resilient portion 77, the resilient portion 77 being adapted to follow the protrusion 75 to slide along the bottom wall of the chute 74 and to snap into the recess 76 under resilient action. The elastic portion 77 is connected to the convex portion 75. The elastic portion 77 includes an elastic portion 771 and a limiting portion 772, the elastic portion 771 has opposite ends, one end of the elastic portion 771 is connected to the protrusion 75, the limiting portion 772 is connected to the other end of the elastic portion 771 and protrudes out of the elastic portion 771 in a direction in which the elastic portion 77 slides into the recess 76, at least part of the elastic portion 771 and at least part of the limiting portion 772 can move in the chute 74 following the protrusion 75, and the limiting portion 772 can be clamped in the recess 76 under the elastic action of the elastic portion 771. The number of the protrusions 75 slidably engaged with the same chute 74 is at least two, and at least two of the protrusions 75 include adjacent first protrusions 751 and second protrusions 752, the first protrusions 751 and second protrusions 752 being disposed at intervals along the first direction X, and the elastic portion 77 being located between the first protrusions 751 and the second protrusions 752 and being connected to the first protrusions 751. The elastic portion 77 is provided at a distance from the second protruding portion 752. The stopper 772 has a guide slope 7721, and the guide slope 772 is used for guiding the stopper 772 to slide out of the recess 76. In the second direction Y, the other of the cover 72 and the base 71 is provided with a relief space 78 for elastically deforming at least one elastic portion 77. The cover 72 has a protrusion 75, and the base 71 has a chute 74. The cover 72 includes a substrate 721 and a plurality of side plates, the substrate 721 is configured to face the mounting surface 711, the plurality of side plates are connected to the substrate 721 and enclose with the substrate 721 to form at least a portion of the accommodating cavity 73, the plurality of side plates include a first side plate 722 and a second side plate 723 that are oppositely disposed along a third direction Z, the number of the protrusions 75 is plural, at least one protrusion 75 is disposed at one end of the first side plate 722 facing away from the substrate 721 and one end of the second side plate 723 facing away from the substrate 721, the base 71 is provided with two sliding grooves 74, the first side plate 722 and the second side plate 723 are respectively matched with the two sliding grooves 74 through the protrusions 75, and the first direction X, the second direction Y and the third direction Z intersect two by two. The chute 74 has a first opening 741, the first opening 741 is disposed opposite to the bottom wall of the chute 74, and the first opening 741 is disposed on a side of the base 71 facing the accommodating chamber 73. The two opposite side walls of the chute 74 along the third direction Z are a first side wall 742 and a second side wall 743, and the first side wall 742 and the second side wall 743 are disposed obliquely toward each other in a direction from the bottom wall of the chute 74 to the first opening 741. The base 71 further includes two bosses 713, the two bosses 713 are disposed on the mounting surface 711 along the third direction Z at intervals, the two sliding grooves 74 are respectively disposed on the two bosses 713, and the two bosses 713 are used for limiting the output electrode 8 in the third direction Z.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; 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 replaced with other technical solutions, which may not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (17)

1. An output pole protection assembly, comprising:

the base body is provided with a mounting surface and a bottom surface which are arranged oppositely, and the mounting surface is used for mounting the output electrode;

the cover body is covered on the base body and surrounds the base body to form a containing cavity for containing the output electrode, one of the base body and the cover body is provided with a chute, the other is provided with a convex part, at least part of the convex part can enter the chute along a first direction and is in sliding fit with the chute along the first direction,

In the assembled state of the cover body and the base body, the sliding groove can limit the convex part to move along a second direction, the second direction is parallel to the arrangement direction from the mounting surface to the bottom surface, the second direction is intersected with the first direction,

the bottom wall of at least one chute is sunken and forms the concave part, the other one of the lid and the pedestal is equipped with at least one elastic part, the elastic part is used for along with the convex part slides along the bottom wall of chute, and under the elasticity effect the card is arranged in the concave part.

2. The output pole protection assembly of claim 1, wherein the resilient portion is connected to the boss.

3. The output pole protection assembly according to claim 2, wherein the elastic portion includes an elastic portion having opposite ends, one end of the elastic portion is connected to the protrusion, and a limit portion connected to the other end of the elastic portion and protruding from the elastic portion in a direction in which the elastic portion slides into the recess, at least part of the elastic portion and at least part of the limit portion being capable of following the protrusion and moving in the chute, the limit portion being capable of being caught in the recess by an elastic action of the elastic portion.

4. The output pole protection assembly of claim 3, wherein the number of protrusions slidingly engaging the same runner is at least two, the at least two protrusions including adjacent first and second protrusions, the first and second protrusions being spaced apart along the first direction, the resilient portion being located between and connected to the first protrusion.

5. The output pole protection assembly of claim 4, wherein the resilient portion is spaced apart from the second protrusion.

6. The output pole protection assembly of claim 3 wherein the stop portion has a guide ramp for guiding the stop portion to slide out of the recess.

7. The output pole protection assembly according to any one of claims 1 to 6, wherein the other of the cover body and the base body is provided with a relief space for elastic deformation of the at least one elastic portion in the second direction.

8. The output pole protection assembly according to any one of claims 1 to 6, wherein the cover is provided with the protrusion and the base is provided with the slide groove.

9. The output pole protection assembly of claim 8, wherein the cover includes a base plate for facing the mounting surface and a plurality of side plates connected to the base plate and circumscribing the base plate to form at least a portion of the receiving cavity,

the plurality of side plates comprise a first side plate and a second side plate which are oppositely arranged along a third direction, the number of the convex parts is multiple, at least one convex part is respectively arranged at one end of the first side plate, which deviates from the substrate, and one end of the second side plate, which deviates from the substrate, the base body is provided with two sliding grooves, the first side plate and the second side plate are matched with the two sliding grooves through the convex parts, and the first direction, the second direction and the third direction are intersected in a two-by-two mode.

10. The output pole protection assembly of claim 9, wherein the chute has a first opening disposed opposite a bottom wall of the chute, the first opening being disposed on a side of the housing facing the receiving cavity.

11. The output pole protection assembly of claim 10, wherein two opposing sidewalls of the runner along the third direction are a first sidewall and a second sidewall, at least one of the first sidewall and the second sidewall being shaped to limit the protrusion from exiting the first opening, the first direction, the second direction, and the third direction intersecting one another.

12. The output pole protection assembly of claim 11, wherein the dimension of the runner in the third direction is tapered at least in a section from the bottom wall of the runner to the first opening.

13. The output pole protection assembly of claim 12, wherein one of the first and second side walls is disposed obliquely toward the other or the first and second side walls are inclined toward each other in a direction from a bottom wall of the chute to the first opening.

14. The output electrode protection assembly of claim 10, wherein the base further comprises two bosses, the two bosses are disposed on the mounting surface at intervals along the third direction, the two sliding grooves are respectively disposed on the two bosses, and the two bosses are used for limiting the output electrode in the third direction.

15. The output pole protection assembly of claim 9, wherein the chute has a first opening disposed opposite a bottom wall of the chute, the first openings of two of the chutes being disposed on opposite sides of the housing in the third direction, respectively.

16. A battery, comprising:

at least one battery module including an end plate;

the output pole protection assembly of any one of claims 1-15 mounted to the end plate;

the output electrode is positioned in the accommodating cavity and connected with the base body, and the output electrode is electrically connected with at least one battery module and is used for outputting electric energy of at least one battery module.

17. An electrical device comprising a battery as claimed in claim 16 for providing electrical energy.