CN221102287U

CN221102287U - Battery box, battery and electric equipment

Info

Publication number: CN221102287U
Application number: CN202322759847.5U
Authority: CN
Inventors: 任朝举; 李良玉
Original assignee: Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2023-10-13
Filing date: 2023-10-13
Publication date: 2024-06-07
Anticipated expiration: 2033-10-13

Abstract

The application provides a battery box, a battery and electric equipment, and relates to the technical field of batteries. The battery box body comprises a box body. The box body comprises an end plate and a plurality of coamings connected into an annular structure. An end plate is connected to one end of the annular structure to define a receiving cavity. The side of the coaming facing the accommodating cavity is provided with a guide groove matched with the battery cell bracket. One groove end of the guide groove faces the end plate, and the other groove end faces the opening of the accommodating cavity. According to the application, the guide groove is arranged on the inner wall of the box body, so that one end of the battery cell support of the battery module can be matched with the guide groove, two sides of the battery module are limited by two side groove walls of the guide groove to be fixed, the battery cell support can be connected with the guide groove into a whole in a bonding mode, and then the battery module can be fixed in the battery box body, so that the battery module is fixed without arranging a bolt, and the problem that the internal space of the box body is limited and the battery module is not easy to install by using the bolt is solved.

Description

Battery box, battery and electric equipment

Technical Field

The application relates to the technical field of batteries, in particular to a battery box, a battery and electric equipment.

Background

In the related art, a battery includes a battery case and a battery module fixed in the case. The battery module is fixed in the box body through the bolt, and the space in the box body is limited, so that the battery module is inconvenient to install by the bolt, and then the battery assembly efficiency is low.

Disclosure of utility model

The embodiment of the application provides a battery box, a battery and electric equipment, which can solve the problem that the limited space in the box is not beneficial to the installation of a battery module by adopting bolts.

In a first aspect, an embodiment of the present application provides a battery box, including a box body, where the box body includes an end plate and a plurality of coamings, the coamings are sequentially connected end to form an annular structure, and the end plate is connected with one end of the annular structure to define a receiving cavity in which a battery module is mounted; one side of the coaming facing the accommodating cavity is provided with a guide groove matched with the battery cell support of the battery module, one groove end of the guide groove faces the end plate, and the other groove end faces the opening of the accommodating cavity.

In one embodiment, a pair of locating plates is arranged on one side of the coaming, which is close to the accommodating cavity, and a guide groove is arranged between the locating plates.

In one embodiment, the locating plate is provided with a side surface deviating from the coaming, the distance between the side surface and the coaming where the locating plate is located is L, the minimum distance between the coaming where the locating plate is located and the battery cell of the battery module is L ₀, and L is more than or equal to 0.5mm and less than or equal to L ₀.

In one embodiment, the thickness of the locating plate is D, which is 0.5 mm.ltoreq.D.ltoreq.3 mm.

In one embodiment, the shroud and the locating plate are integrally formed.

In an embodiment, the two coamings are provided with guide grooves, and the guide grooves on the two coamings are arranged oppositely.

In an embodiment, two guide grooves are formed in two coamings which are arranged oppositely, and the guide grooves in the two coamings are arranged oppositely one by one.

In an embodiment, the coaming is provided with the output pole fixing base towards one side of holding the chamber and the one end that keeps away from the end plate, and one side that the output pole fixing base deviates from the end plate is provided with the screw hole.

In a second aspect, an embodiment of the present application provides a battery, where the battery includes a battery module and the foregoing battery case, and the battery module includes a battery cell support and a battery cell disposed on the battery cell support, and one end of the battery cell support is inserted into the guide groove and connected to a wall surface of the guide groove.

In one embodiment, the guide slot is glued to the cell support.

In one embodiment, the guide slot is in clearance fit with the cell support to form a gap for glue storage.

In one embodiment, the guide slot is an interference fit with the cell support.

In an embodiment, the groove wall of the guide groove is provided with a chamfer towards the end of the receiving chamber.

In an embodiment, the cell holder is provided with a chamfer at one end of the side of the cell wall facing the guide groove and close to the bottom wall of the receiving cavity.

In a third aspect, an embodiment of the present application further provides an electric device, where the electric device includes the battery, and the battery is used to provide electric energy for the electric device.

The embodiment of the application has the beneficial effects that:

In the embodiment of the application, the guide groove is arranged on the inner wall of the box body, so that one end of the battery cell support of the battery module can be matched with the guide groove, two sides of the battery module are limited by the groove walls on two sides of the guide groove to be fixed, the battery cell support can be connected with the guide groove into a whole in a bonding mode, and then the battery module can be fixed in the battery box body, so that the battery module is fixed without arranging bolts, and the problem that the internal space of the box body is limited and the battery module is not convenient to install by the bolts is solved.

Drawings

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

Fig. 1 is a schematic structural view of a vehicle provided by an embodiment of the present application;

Fig. 2 is an exploded view of a battery provided by an embodiment of the present application;

fig. 3 is a schematic structural view of a battery case according to an embodiment of the present application;

FIG. 4 is a schematic view of the structure of a tank body provided by an embodiment of the present application;

FIG. 5 is a top view of a tank body provided by an embodiment of the present application;

Fig. 6 is a schematic diagram illustrating the cooperation between a case body and a battery module according to an embodiment of the present application;

FIG. 7 is an enlarged view at A in FIG. 5;

Fig. 8 is an enlarged view at B in fig. 3;

fig. 9 is a schematic view of the structure of fig. 8 with the protective cover removed.

Reference numerals illustrate:

1-a vehicle;

10-battery; 20-a controller; 30-an engine;

100-a battery box; 200-battery module; 201-a cell holder; 202-an electric core; 203-BMS board; 204-CCS component;

101-a box body; 102-case cover; 1021-yielding slots; 1022-low voltage interface; 1023-output electrode interface; 1024-mounting holes; 1025-notch; 103-a handle; 104-a protective cover; 1041-a hinge shaft; 105-sealing rings; 106-a receiving cavity;

1011-coaming; 10111-guide grooves; 10112-locating plate; 1012-end plates; 1013-reinforcing bars; 1014-an output pole holder; 10141-threaded bore;

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprises" and "comprising," and any variations thereof, in the description of the application and the claims and the foregoing drawings, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the present disclosure, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In describing embodiments of the present application, words such as "exemplary" or "such as" are used to mean illustrated, described, or described. Any embodiment or design described as "exemplary" or "such as" in an embodiment of the application is not necessarily to be construed as preferred or advantageous over another embodiment or design. The use of words such as "example" or "such as" is intended to present relative concepts in a clear manner.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The electric equipment provided by the embodiment of the application can be, but is not limited to, an electric toy, an electric tool, a battery car, an automobile, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like. The automobile can be a fuel oil automobile, a fuel gas automobile and a new energy automobile.

For convenience of explanation, the following embodiments will be explained taking the electric device as an example of the vehicle 1.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1 according to an embodiment of the application. The vehicle 1 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-extending vehicle. The battery 10 is provided in the interior of the vehicle 1, and the battery 10 may be provided at the bottom or at the head or at the tail of the vehicle 1. The battery 10 may be used for power supply of the vehicle 1, for example, the battery 10 may serve as an operating power source of the vehicle 1. The vehicle 1 may also include a controller 20, while the vehicle 1 may also include an engine 30. The battery 10 is used to power the controller 20 and the engine 30, for example, for operating power requirements at start-up, navigation, and travel of the vehicle 1.

In some embodiments of the application, the battery 10 may not only serve as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, instead of or in part instead of fuel oil or natural gas, to provide driving power for the vehicle 1.

Referring to fig. 2, fig. 2 is an exploded view of a battery 10 according to an embodiment of the application. The battery 10 includes a battery case 100 and a battery module 200, and the battery module 200 is accommodated in the battery case 100. The battery module 200 includes a battery cell holder 201 and a battery cell 202 disposed on the battery cell holder 201. Wherein, the battery case 100 is used to provide an accommodating space for the battery module 200. As shown in fig. 3, fig. 3 is a schematic structural diagram of a battery case 100 according to an embodiment of the present application, and the battery case 100 includes a case body 101. The tank body 101 includes an end plate 1012 and a plurality of coamings 1011. The multiple coamings 1011 are connected end to end in sequence to form a ring structure. An end plate 1012 is coupled to one end of the ring structure to define the receiving chamber 106 in which the battery module 200 is mounted. The side of the coaming 1011 facing the receiving chamber 106 has a guide groove 10111 which is engaged with the cell holder 201 of the battery module 200. One groove end of the guide groove 10111 faces the end plate 1012, and the other groove end faces the opening of the accommodating chamber 106, as shown in fig. 4 and 5, fig. 4 is a schematic structural view of the case body 101 provided by the embodiment of the present application, and fig. 5 is a plan view of the case body 101 provided by the embodiment of the present application. One end of the cell holder 201 is inserted into the guide groove 10111 and connected to the wall surface of the guide groove 10111, as shown in fig. 6, fig. 6 is a schematic diagram illustrating the cooperation between the case body 101 and the battery module 200 according to the embodiment of the present application.

It will be appreciated that the battery housing 100 also includes a cover 102, with the cover 102 covering an end of the annular structure facing away from the end plate 1012, thereby isolating the receiving cavity 106 from the environment. The cell holders 201 may be one or two. When two cell holders 201 are employed, the cell 202 is located between the two cell holders 201.

Illustratively, the battery case 100 is made of an aluminum alloy material, and the outer wall of the surrounding plate 1011 and one side of the end plate 1012 close to the accommodating cavity 106 are provided with the 'field' -shaped reinforcing ribs 1013, so that the structural strength of the case body 101 can be greatly improved, and the safety of the battery is further improved. The cell support 201 can be glued to the wall surface of the guide groove 10111 by glue, and the cell support 201 can be glued to the guide groove 10111 by hot melting. When the cell holder 201 is fixed by means of glue bonding, the cell holder 201 is optionally clearance-fitted with the guide groove 10111 to form a gap for storing glue, which is used for filling glue or a hot-melt material. Regarding the aforementioned clearance fit, specifically: the width dimension of the guide groove 10111 is L ₁, and the dimension of the cell holder 201 on the width of the guide groove 10111 is L ₂, which satisfies L ₁>L₂. Further, the fit clearance between the cell holder 201 and the guide groove 10111 is 0.2mm to 1.1mm, alternatively 0.3mm to 1mm, specifically 0.5mm.

For example, the battery module 200 may include 4 series-connected cylindrical cells 202, each cell 202 having a voltage of 3V. Correspondingly, the voltage of the battery module 200 is 12V.

In this embodiment, the guide groove 10111 is disposed on the inner wall of the case body 101, so that one end of the battery cell support 201 of the battery module 200 can be matched with the guide groove 10111, so that two sides of the battery module 200 are limited and fixed by two side groove walls of the guide groove 10111, and the battery cell support 201 can be connected with the guide groove 10111 into a whole in an adhesive manner, so that the battery module 200 can be fixed in the battery case 100, and the battery module 200 is fixed without configuring a bolt, thereby solving the problem that the internal space of the case is limited and the battery module 200 is not conveniently installed by using the bolt. Therefore, the convenience of the battery module 200 in the related art in mounting the battery module in the case can be improved, and thus, the battery assembly efficiency can be improved, and the time cost of battery assembly can be reduced.

When the battery module 200 is mounted in the battery case 100, structural adhesive is only required to be coated on the portion of the cell holder 201 that is matched with the guide groove 10111 after the battery module 200 is assembled, and/or structural adhesive is required to be coated in the guide groove 10111. The battery module 200 is then slid into the receiving chamber 106 along the guide groove 10111 such that the cell holder 201 is glued to the guide groove 10111 by means of the structural glue. Therefore, the battery module 200 is installed in a simple and efficient manner, so that the industrialization process of the battery is greatly simplified, and the production efficiency is greatly improved.

In addition, the cooperation of the battery cell holder 201 and the guide groove 10111 can improve the positioning accuracy of the battery module 200, thereby improving the assembly accuracy of the battery.

In other embodiments, the cell holder 201 may also be fastened to the guide slot 10111 by an interference fit with the guide slot 10111. In this case, in order to smoothly mate the cell holder 201 with the guide groove 10111, the groove port of the guide groove 10111 toward the opening of the receiving chamber 106 may be enlarged or the end of the cell holder 201 toward the bottom wall of the receiving chamber 106 may be downsized. Both the increase and the decrease can be achieved by rounding off the corresponding parts. Specifically, the groove wall of the guide groove 10111 is provided with a chamfer, which may be a rounded corner or a beveled corner, toward one end of the opening of the accommodating chamber 106. The side of the cell holder 201 facing the groove wall of the guide groove 10111 may be provided with a chamfer, which may be a rounded corner or a beveled corner, near the bottom wall of the accommodating chamber 106. With the above arrangement, as the cell holder 201 is inserted into the battery case, the fit between the cell holder 201 and the guide groove 10111 is changed from the clearance fit to the transition fit to the interference fit, so that the cell holder 201 is fixed in the guide groove 10111 by the pressing force generated by the interference fit.

Referring to fig. 4 to 7, fig. 7 is an enlarged view of fig. 5 a. In one embodiment, the shroud 1011 is provided with a pair of locating plates 10112 on the side adjacent the receiving cavity 106. The spacing between a pair of positioning plates 10112 is a guide slot 10111.

It will be appreciated that one of the plurality of enclosures may be provided with one or two pairs of locating plates 10112, or that either of the two enclosures may be provided with one or two pairs of locating plates 10112.

Illustratively, the shroud 1011 is integrally formed with the locating plate 10112 and is a metal piece.

In the present embodiment, the guide groove 10111 is defined by providing the positioning plate 10112, so that the overall structure of the battery case 100 is simple and the manufacturing is convenient.

In another embodiment, the guide slot 10111 may be provided in the shroud 1011. In order to secure strength of the shroud 1011 where the guide groove 10111 is formed, it is generally necessary to increase the entire thickness of the shroud 1011 as compared with the previous embodiment. This not only increases the size of the battery case 100, but also increases the amount of material used for the battery case 100. While the former embodiment forms the guide groove 10111 by adding the positioning plate 10112, the size of the battery box 100 is not affected, and the material consumption of the surrounding plate 1011 can be effectively controlled, so that the material cost of the battery box 100 is reduced.

Referring to FIG. 7, in one embodiment, the positioning plate 10112 has a side facing away from the shroud 1011, and the side is spaced apart from the shroud 1011 on which the positioning plate 10112 is located by L. The minimum distance between the coaming 1011 where the positioning plate 10112 is located and the battery cell 202 of the battery module 200 is L ₀. The end of the cell 202 is inserted into the cell holder 201, and the end of the cell holder 201 is inserted into the guide groove 10111, thereby disposing the positioning plate 10112 opposite the cell 202. The minimum distance L ₀ is the distance between the outer peripheral surface of the cell closest to the positioning plate 10112 and the enclosure 1011 on which the positioning plate 10112 is located. L.ltoreq.L ₀ is therefore defined to avoid interference with the cell 202 due to oversized positioning plate 10112. And the spacing L is too small, which is disadvantageous in limiting the battery module 200 by the positioning plate 10112. Thus defining 0.5 mm.ltoreq.L.

Illustratively, 1 mm.ltoreq.L.ltoreq.15 mm. Further, l=4 mm, or l=5 mm.

In this embodiment, by limiting the distance between the second end and the first end, the interference between the positioning plate 10112 and the battery cell 202 can be avoided, and the positioning plate 10112 is not too small to limit the battery module 200.

Referring to FIG. 7, in one embodiment, the positioning plate 10112 has a thickness D that satisfies 0.5 mm.ltoreq.D.ltoreq.3 mm.

It will be appreciated that the thickness D of the positioning plate 10112 is too small and not strong enough to break easily. The thickness D of the positioning plate 10112 is too large, which may result in unnecessary material waste, so that the thickness D of the positioning plate 10112 is limited, so that the positioning plate 10112 is not easily damaged during assembly and use, and the material consumption can be controlled, thereby avoiding material waste.

Exemplary, 1 mm.ltoreq.D.ltoreq.2.5 mm. Further, d=2 mm, or d=2.4 mm.

Referring to fig. 5, in an embodiment, guide grooves 10111 are formed on two opposite coamings 1011, and the guide grooves 10111 on the two coamings 1011 are opposite.

It can be understood that both ends of the cell holder 201 are inserted into the two guide grooves 10111, respectively.

In this embodiment, the guide slots 10111 are disposed on the two surrounding plates 1011 that are disposed oppositely, so that the two ends of the battery cell support 201 are limited by the guide slots 10111, and the stability of the installation and the accuracy of the position of the battery module 200 can be further improved.

Referring to fig. 5, in an embodiment, two guide grooves 10111 are disposed on two opposite coamings 1011, and the guide grooves 10111 on the two coamings 1011 are disposed one by one.

It will be appreciated that, typically, the battery module 200 has two cell holders 201 with the cell 202 located between the two cell holders 201. When mounted, both ends of one cell holder 201 are inserted into a pair of oppositely disposed guide grooves 10111, and both ends of the other cell holder 201 are inserted into the other pair of oppositely disposed guide grooves 10111.

In this embodiment, two guide grooves 10111 are disposed on opposite surrounding plates 1011, so that the plurality of cell holders 201 of the battery module 200 are limited by the guide grooves 10111, and the stability of the installation and the accuracy of the position of the battery module 200 can be further improved.

As shown in fig. 6, in one embodiment, the end of the shroud 1011 facing the side of the receiving cavity 106 and away from the end plate 1012 is provided with an output pole fixing seat 1014, and the side of the output pole fixing seat 1014 facing away from the end plate 1012 is provided with a threaded hole 10141.

It is understood that the battery module 200 further includes a CCS assembly 204 and a BMS plate 203. One end of the CCS assembly 204 is connected to the battery cell 202 and the other end is connected to the BMS board 203. The BMS board 203 is connected to an external load through a positive electrode lead-out terminal and a negative electrode lead-out terminal. The screw holes 10141 are engaged with screws, and the screw shaft ends of the screws pass through the metal bars connected between the CCS assembly 204 and the BMS plate 203 and then are connected with the screw holes 10141, thereby fixing the metal bars between the output pole fixing base 1014 and the heads of the screws.

The BMS board 203 is a battery management system, and is used as a control unit of a battery, and can realize functions of voltage acquisition and temperature acquisition of the battery cells 202, charge and discharge control and equalization of the battery module 200, and the like. The CCS assembly 204 is an integrated component collected by the battery module 200, and is used for connecting the collected working information of the battery cells and the positive and negative output ends of the battery cell group with the BMS board. After the cell 202 is mounted on the cell holder 201, it is soldered to the CCS assembly 204. After welding, the battery module 200 is mounted in the battery case 100. The surface of the metal bar, which contacts the output pole holder 1014 and the screw, is provided with an insulating structure. The insulation structure can be an insulation layer formed by spraying and dip molding, and also can be a heat shrinkage pipe, and the heat shrinkage pipe is sleeved on the metal row to form the insulation structure.

In this embodiment, by providing the output pole fixing seat 1014, the reliability and safety of the battery electrical connection can be improved, and the structure is simple, which is beneficial to realizing the function of rapid assembly.

In one embodiment, as shown in fig. 3, a handle 103 is provided on the case cover 102, and the handle 103 is rotatably connected to the case cover 102. A relief groove 1021 is formed in one side of the case cover 102 away from the case body 101, and the handle 103 is rotatably disposed in the relief groove 1021. Therefore, the convenience of carrying the battery can be improved through the handle 103, and the battery can be directly embedded into the upper cover when the handle 103 is not used, so that the extra space is not occupied.

As shown in fig. 3, in an embodiment, a side of the case cover 102 facing away from the case body 101 is provided with a low-voltage port 1022 and an output electrode port 1023, which are respectively communicated with the accommodating chamber 106, as shown in fig. 8 and 9, fig. 8 is an enlarged view at B in fig. 3, and fig. 9 is a schematic view of the structure of fig. 8 with the protective cover 104 removed. The output electrode interfaces 1023 are two, namely a positive electrode output electrode interface and a negative electrode output electrode interface. The output pole of the positive electrode leading-out end is penetrated and arranged at the positive electrode output pole interface, and the output pole of the negative electrode leading-out end is penetrated and arranged at the negative electrode output pole interface. A protective cover 104 is provided on the cover 102 proximate to the output pole interface 1023, the protective cover 104 being hinged to the cover 102, and the protective cover 104 being configured to cover or expose the output pole.

The protective cover 104 is used for protecting the output electrode, so that the electrical safety of the battery is improved. The output pole is used for connecting the battery with the whole vehicle and is directly connected to a corresponding interface of the whole vehicle. The low-voltage interface 1022 is used for penetrating a wire harness connecting the BMS board 203 with a controller of the whole vehicle, so as to realize communication between the BMS board 203 and the controller, thereby facilitating the BMS board 203 to send and receive instructions and the like.

Illustratively, the case cover 102 is provided with a mounting hole 1024, a hole wall on one side of the mounting hole 1024 is communicated with the outside through a notch 1025, and a central angle of the notch 1025 is smaller than 90 °. One side of the protective cover 104 is provided with a hinge shaft 1041, the diameter of the hinge shaft 1041 is larger than the width dimension of the notch 1025, and the hinge shaft 1041 is located in the mounting hole 1024 and is in interference fit with the mounting hole 1024.

It is understood that the mounting holes 1024 are circular in cross-section. The protective cover 104 covers or exposes the output post by rotating about the axis of the mounting hole 1024. The hinge shaft 1041 can be withdrawn from the mounting hole 1024 or externally fitted into the mounting hole 1024 through the pressing notch 1025. The hinge shaft 1041 is in interference fit with the mounting hole 1024, so that the protection cover 104 is stably in a state of covering the pole, and the pole is prevented from being exposed at will.

Illustratively, a sealing ring 105 is disposed between the case cover 102 and the case body 101, and the sealing ring 105 is pressed against the case body 101 by the case cover 102 to enhance the sealing property of the accommodating chamber 106.

The foregoing has outlined rather broadly the more detailed description of embodiments of the application, wherein the principles and embodiments of the application are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.

Claims

1. A battery box, comprising:

The battery box comprises a box body, a battery box and a battery box, wherein the box body comprises an end plate and a plurality of coamings, the coamings are sequentially connected end to form an annular structure, and the end plate is connected with one end of the annular structure to define a containing cavity for installing a battery module; one side of the coaming, which faces the accommodating cavity, is provided with a guide groove matched with the battery cell support of the battery module, one groove end of the guide groove faces the end plate, and the other groove end of the guide groove faces the opening of the accommodating cavity.

2. The battery box according to claim 1, wherein at least a pair of positioning plates are provided on a side of the coaming adjacent to the accommodating chamber, and a space between the pair of positioning plates is the guide groove.

3. The battery box according to claim 2, wherein the positioning plate is provided with a side surface deviating from the surrounding plate, the distance between the side surface and the surrounding plate where the positioning plate is located is L, the minimum distance between the surrounding plate where the positioning plate is located and the battery cell of the battery module is L ₀, and L is less than or equal to 0.5mm and less than or equal to L ₀.

4. The battery box of claim 2, wherein the thickness of the positioning plate is D, and D is 0.5mm or less and 3mm or less.

5. The battery box of claim 2, wherein the shroud is of unitary construction with the locating plate.

6. The battery box of claim 1, wherein the guide grooves are formed in two of the coamings which are arranged oppositely, and the guide grooves in the two coamings are arranged oppositely.

7. The battery box of claim 6, wherein two guide grooves are formed in two opposite coamings, and the guide grooves in the two coamings are arranged in a one-to-one opposite manner.

8. The battery box of any of claims 1-7, wherein an output pole mount is provided at an end of the coaming facing the side of the receiving cavity and away from the end plate, and a threaded hole is provided at a side of the output pole mount facing away from the end plate.

9. A battery, comprising:

The battery case according to any one of claims 1 to 8;

The battery module comprises a battery cell support and a battery cell arranged on the battery cell support, wherein one end of the battery cell support is inserted into the guide groove and connected with the wall surface of the guide groove.

10. The battery of claim 9, wherein the guide slot is glued to the cell support.

11. The battery of claim 10, wherein the guide slot is clearance fit with the cell support to form a gap for glue storage.

12. The battery of claim 9, wherein the guide slot is an interference fit with the cell support.

13. The battery according to claim 12, wherein a groove wall of the guide groove is provided with a chamfer toward one end of the accommodation chamber.

14. The battery according to claim 12, wherein the cell holder is provided with a chamfer at an end of the side face of the cell wall facing the guide groove and close to the bottom wall of the accommodation chamber.

15. A powered device comprising a battery as claimed in any one of claims 9 to 14, the battery being arranged to provide electrical energy to the powered device.