CN220856745U - Battery and electric equipment - Google Patents

Abstract

The application discloses a battery and electric equipment. The battery includes box, battery monomer and first support piece. The box body is provided with a containing cavity. The battery cells are arranged in the accommodating cavity. The first support piece is arranged between adjacent battery cells. And is abutted against the side surface of the battery cell. The first support member extends in the height direction of the battery cell so that the first support member can transmit force between the top of the case and the bottom of the case. According to the embodiment of the application, the first supporting piece is arranged, the impact force received by the box body can be transmitted to the first supporting piece, the first supporting piece further converts the impact force into the pressure between the box body and the adjacent battery cells, and the first supporting piece is arranged between the adjacent battery cells and is abutted against the side surfaces of the battery cells, so that the impact force is converted into the shearing force between the battery cells, the impact force received by the box body can be prevented from being directly converted into the pressure on the battery cells to a certain extent, the problem that the battery cells deform is solved, and the integral strength of the battery is improved.

Description

Battery and electric equipment

Technical Field

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

Background

At present, the battery is widely applied to various electric equipment such as vehicles, and in the working process of part of the electric equipment, the battery is often accompanied with the condition of movement or vibration. In this case, it is very important how to improve the structural strength of the battery.

Disclosure of utility model

In view of this, the embodiment of the application is expected to provide a battery and electric equipment, which can improve the overall strength of the battery.

To achieve the above object, a first aspect of an embodiment of the present application provides a battery, including:

the box body is provided with a containing cavity;

The battery cells are arranged in the accommodating cavity;

The first supporting piece is arranged between the adjacent battery cells and is abutted to the side faces of the battery cells, and the first supporting piece extends along the height direction of the battery cells so that the first supporting piece can transfer force between the top of the box body and the bottom of the box body.

So, the impact force that the box received can transmit to first support piece, first support piece then with the impact force conversion become with the box between the pressure to through setting up first support piece between adjacent battery monomer, and with the free side butt of battery, and then with the impact force conversion become with the free shearing force of battery, can avoid the impact force direct conversion that the box received to a certain extent to the free pressure of battery, thereby improve the free problem of taking place deformation of battery, improved the bulk strength of battery.

In some embodiments, the battery includes a second support disposed between the shoulder of the battery cell and the case, the second support being capable of transferring force between the battery cell, the first support, and the case.

The second support is capable of transferring force between the battery cell, the first support and the case. That is, the case is able to transmit the stress to the shoulder of the battery cell through the second support. The stress of the shoulder of the battery cell can be transmitted to the case through the first support, or converted into a shearing force between the first support and the battery cell. That is, after the box receives the impact force, can pass through the second support piece with impact force transmission to the free shoulder of battery, the free shoulder of battery receives the impact force and can change into the pressure between first support piece and the box and the shearing force between first support piece and the free battery through first support piece, can avoid the direct conversion of the impact force that the box received to the free pressure of battery to a certain extent to improve the free problem that takes place deformation of battery.

In some embodiments, the battery includes a connector that enables the second support to connect with the battery cell, the first support, and the case, respectively, the connector being capable of transferring force between the battery cell, the first support, the second support, and the case.

The second support piece is connected with the battery monomer through the connecting piece, and the second support piece is connected with the first support piece through the connecting piece, and the second support piece is connected with the box through the connecting piece. The box body can transmit the stress to the battery cell through the connecting piece and the second supporting piece.

In some embodiments, the battery includes a plate disposed between the second support and the case, the plate having a groove on a side facing the second support, the second support being disposed in the groove.

The box body can transmit the stress to the second supporting piece through the plate and the connecting piece, so that the box body is supported. When the second support piece is stressed near one side of the pole, the stress can be transmitted to the box body through the connecting piece and the plate, so that the second support piece is supported by the box body.

In some embodiments, the battery includes a connector disposed between the first support and the case, the connector being capable of transmitting force between the first support and the case.

The box body can transmit the stress to the battery cell through the connecting piece and the second supporting piece. The stress of the shoulder part of the battery monomer can be converted into the pressure between the first supporting piece and the box body and the shearing force between the first supporting piece and the battery monomer through the first supporting piece, and the other end of the first supporting piece passes through the connecting piece and the box body to transfer force, so that the battery monomer is supported by the box body. The atress of box one side can be transmitted to the opposite side of box through connecting piece, first support piece, second support piece, and the opposite side of box can play the effect of support to further promoted holistic intensity.

In some embodiments, at least one end of the first support member in the height direction is formed with a glue storage groove, which can be used to accommodate a portion of the connection member.

By forming the glue storage groove at the end of the first support member, the glue storage groove can be used for storing glue, that is to say for accommodating part of the connecting member, thereby ensuring the performance of the battery.

In some embodiments, the connector is an insulating glue layer.

The insulating adhesive layer has the function of bonding and fixing, so that the connection stability of the bonded parts in vibration and moving scenes is improved. In addition, the insulating glue layer can also play an insulating role.

In some embodiments, the battery includes a plate disposed between the first support and the housing, the plate being capable of transferring force between the first support and the housing.

The box body can transmit the stress to the first supporting piece through the plate, so that the box body is supported. When the first support piece is stressed near one side of the pole, the stress can be transmitted to the box body through the connecting piece, so that the second support piece is supported by the box body, and the force transmission between the top of the box body and the bottom of the box body of the first support piece is realized.

In some embodiments, the number of the plates is two, and the two plates are respectively disposed at two ends of the first supporting member in the height direction.

Through all being provided with the plate at the both ends of first support piece along the direction of height, further improved the structural strength of battery.

In some embodiments, the case includes an upper cover and a bottom cover, the upper cover is located at an end of the battery cell facing away from the post of the battery cell, the bottom cover is located at an end of the post of the battery cell, and the first support is capable of transmitting force between the upper cover and the bottom cover.

The first support is capable of transmitting force between the upper cover and the lower cover. The bottom cover can transmit the atress to the upper cover through first support piece, that is to say, upper cover and bottom bear the impact force that the bottom received jointly to make the impact force that the bottom received distribute whole battery, improved the condition that the battery monomer takes place to warp.

In some embodiments, the first support is a metal piece, or a composite piece, or an insulation piece.

So that the first supporting piece has certain strength and can bear certain impact force. Besides supporting function, the first supporting piece can also be compatible with functions of heat insulation, group tolerance absorption and the like.

A second aspect of the present application provides an electrical device, the electrical device comprising the battery described above, the battery being configured to provide electrical energy to the electrical device.

So, the impact force that the box received can transmit to first support piece, first support piece then with the impact force conversion become with the box between the pressure to through setting up first support piece between adjacent battery monomer, and with the free side butt of battery, and then with the impact force conversion become with the free shearing force of battery, can avoid the impact force direct conversion that the box received to a certain extent to the free pressure of battery, thereby improve the free problem of taking place deformation of battery, improved the bulk strength of battery.

In some embodiments, the electric device is a vehicle, and the pole of the battery unit is disposed on the vehicle downward.

Through setting up battery monomer's utmost point post downwards, be favorable to setting up second support piece between battery monomer's shoulder and the bottom of box, can be used for stabilizing the vibration amplitude of battery monomer under vibration environment. The structural strength of the shoulder of the battery monomer is greater than that of the middle of the battery monomer, and therefore, the second supporting piece is arranged between the shoulder of the battery monomer and the box body, impact force can be transmitted to the shoulder of the battery monomer through the second supporting piece, energy impact on the middle of the battery monomer is reduced, impact force received by the shoulder of the battery monomer can be converted into pressure between the first supporting piece and the top of the box body through the first supporting piece, and shearing force between the first supporting piece and the battery monomer can be avoided to a certain extent, impact force received by the bottom of the box body can be directly converted into pressure on the battery monomer, and accordingly the problem that the battery monomer deforms is improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

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

fig. 2 is a schematic structural view of a battery according to some embodiments of the present application;

fig. 3 is an exploded perspective view of the battery shown in fig. 2;

FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 2;

FIG. 5 is a partial enlarged view at B in FIG. 4;

FIG. 6 is a schematic view of a second support and a plate according to some embodiments of the present application;

fig. 7 is a schematic structural diagram of a battery cell and a first support member according to some embodiments of the application.

Description of the reference numerals

10. A case; 10a, a receiving cavity; 11. an upper cover; 12. a bottom cover; 20. a battery cell; 20a, shoulders; 21. a pole; 22. a housing; 23. an end cap; 30. a first support; 30a, a glue storage groove; 40. a second support; 50. a connecting piece; 60. a plate member; 60a, grooves; 70. a wafer; 100. a battery; 200. a controller; 300. a motor; 1000. a vehicle.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit 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 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 of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," "third," etc. are used merely to distinguish between different objects and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein 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 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 this context, the character "/" generally indicates that the associated object is an "or" relationship.

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "length", "height", "thickness", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc. are orientation or positional relationship based on the drawings, merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured, operated, or used in a specific orientation, and thus should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; 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 embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the term "contact" is to be understood in a broad sense as either direct contact or contact across an intermediate layer, as either contact with substantially no interaction force between the two in contact or contact with interaction force between the two in contact.

The present application will be described in detail below.

At present, new energy batteries are increasingly widely applied to life and industry. The new energy battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

The battery is widely applied to various electric equipment such as vehicles, and in the working process of part of the electric equipment, the battery is often accompanied with the condition of movement or vibration. In this case, it is very important how to improve the structural strength of the battery.

If the structural strength of the battery is improved by increasing the bottom space of the battery or enhancing the strength of the case or the bottom plate so as to absorb impact energy, the limitation on the selection of the material of the bottom plate is very large, and the bottom safety of the battery is difficult to be improved on the premise of high energy density and light weight.

Based on the above-mentioned considerations, in order to solve the problem of improving the structural strength of the battery 100, the present application designs a battery 100, referring to fig. 2 to 7, the battery 100 includes a case 10, a battery cell 20, and a first support 30. The case 10 has a housing chamber 10a. A plurality of battery cells 20 are disposed in the accommodation chamber 10a. The first support 30 is disposed between the adjacent battery cells 20. And abuts against the side surface of the battery cell 20. The first support 30 extends in the height direction of the battery cell 20 so that the first support 30 can transmit force between the top of the case 10 and the bottom of the case 10. So, the impact force that box 10 received can transmit to first support piece 30, and first support piece 30 and then with the impact force conversion become with the pressure between the box 10 to through setting up first support piece 30 between adjacent battery monomer 20, and with the side butt of battery monomer 20, and then with the impact force conversion become with the shearing force between the battery monomer 20, can avoid to a certain extent that the impact force that box 10 received directly converts into the pressure to battery monomer 20, thereby improve the problem that battery monomer 20 takes place the deformation, improved battery 100's bulk strength.

The battery 100 provided by the embodiment of the application can be used in electric equipment such as an energy storage power supply system, a vehicle 1000, a ship or an aircraft, and the like. Because the power supply provided by the embodiment of the application has high volume energy density and reliable high sealing performance, the occupied space can be reduced or higher total energy can be provided/stored in a limited space, and the situation that the battery 100 cannot work normally due to poor dust and water resistance does not exist, so that the use reliability of an energy storage power supply system and electric equipment can be improved.

The embodiment of the application provides an electric device including the battery 100 for providing electric energy, and the electric device can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric car, 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.

In the following embodiments, for convenience of explanation, the electric device according to an embodiment of the present application is taken as an example of the vehicle 1000. The following description refers to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the application. The vehicle 1000 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. As shown in fig. 1, the battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 100 may be used for power supply of the vehicle 1000, for example, the battery 100 may be used as an operating power source of the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to power the motor 300, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the present application, battery 100 may not only serve as an operating power source for vehicle 1000, but may also serve as a driving power source for vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for vehicle 1000.

Referring to fig. 3, fig. 3 is an exploded view of a battery 100 according to some embodiments of the present application. The battery 100 includes a case 10, a battery cell 20, and a first support 30. The case 10 has a housing chamber 10a. A plurality of battery cells 20 are disposed in the accommodation chamber 10a. The first support 30 is disposed between the adjacent battery cells 20. And abuts against the side surface of the battery cell 20. The first support 30 extends in the height direction of the battery cell 20 so that the first support 30 can transmit force between the top of the case 10 and the bottom of the case 10.

The case 10 has a housing chamber 10a, and a plurality of battery cells 20 are disposed in the housing chamber 10 a. The box 10 is used for providing accommodation space for the battery cell 20, and the box 10 can protect the battery cell 20. The case 10 may have various structures.

The tank 10 may be part of the chassis structure of the vehicle 1000. For example, a portion of the tank 10 may become at least a portion of a floor panel of the vehicle 1000, or a portion of the tank 10 may become at least a portion of a cross member and a side member of the vehicle 1000.

The battery cell 20 refers to the smallest unit constituting the battery 100. Referring to fig. 7, the battery cell 20 includes an end cap 23, a case 22, and a post 21. Wherein the pole 21 is made of a conductive material such as copper, aluminum or copper-aluminum composite. The post 21 is for electrical connection with the bus member. The pole 21 has a higher strength than the pole piece structure. It is understood that the shape of the pole 21 is not limited and may be a cylindrical structure or a polygonal column structure.

In the battery 100, the plurality of battery cells 20 may be connected in series, parallel or a series-parallel connection, wherein the series-parallel connection refers to that the plurality of battery cells 20 are connected in series or parallel. The plurality of battery cells 20 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 20 is placed in the box 10; of course, the battery 100 may also be a form of a plurality of battery cells 20 connected in series or parallel or series-parallel to form a battery 100 module, and a plurality of battery 100 modules connected in series or parallel or series-parallel to form a whole and accommodated in the case 10. The battery 100 may further include other structures, for example, the battery 100 may further include a bus member for making electrical connection between the plurality of battery cells 20.

In the embodiment of the present application, the battery cell 20 may be a secondary battery 100, and the secondary battery 100 refers to the battery cell 20 that can be continuously used by activating the active material in a charging manner after the battery cell 20 is discharged.

The battery cell 20 may be a lithium ion battery, a sodium-lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead storage battery, etc., which is not limited by the embodiment of the application.

Referring to fig. 4 and 7, the first supporting member 30 extends along the height direction of the battery cell 20, so that the first supporting member 30 is beneficial to transmitting force between the top of the case 10 and the bottom of the case 10, for example, when the bottom of the case 10 receives an impact force, the impact force can be transmitted to the top of the case 10 through the first supporting member 30, and the impact force received by the case 10 can be prevented from being directly converted into the pressure to the battery cell 20 to a certain extent, thereby improving the problem of deformation of the battery cell 20.

The first support 30 is disposed between adjacent battery cells 20 and abuts against the side surfaces of the battery cells 20. The first supporting members 30 are disposed between the adjacent battery cells 20, so that opposite sides of the first supporting members 30 are abutted against the side surfaces of the battery cells 20. So, the impact force that box 10 received can transmit to first support piece 30, and first support piece 30 and then with the impact force conversion with the shearing force between the battery monomer 20, can avoid the impact force that box 10 received directly to change into the pressure to the battery monomer 20 to a certain extent to improve the problem that battery monomer 20 takes place deformation.

Specifically, when the first support 30 receives the impact force, since the first support 30 abuts against the side surface of the battery cell 20, a friction force exists between the first support 30 and the battery cell 20, which can play a certain role in buffering the impact force.

The specific manner in which the first support 30 is abutted against the side surface of the battery cell 20 is not limited, and for example, the first support 30 may be abutted against a large surface of the battery cell 20 or may be abutted against a small surface of the battery cell 20. In the embodiment of the present application, the first support member 30 is abutted against the small surface of the battery cell 20. Carrying out

The large surface of the battery cell 20 refers to the side surface having the largest area among the surfaces of the battery cell 20. The shape of the battery cell 20 is not limited, and for example, the battery cell 20 may have a cylindrical shape, a flat shape, a rectangular parallelepiped shape, or other shapes. For example, when the battery cell 20 is a rectangular parallelepiped, the surface defined by the long side and the wide side of the battery cell 20 is a large surface of the battery cell 20.

The specific material of the first support 30 is not limited herein, and needs to have a certain strength and be able to withstand a certain impact force. Illustratively, in some embodiments, the first support 30 is a metal or composite piece.

In other embodiments, the first support 30 is a thermal insulator. In this embodiment, the first support 30 may be compatible with the function of thermal insulation in addition to the supporting function.

Of course, in other embodiments, the first support 30 may also have the function of absorbing group tolerances and the like.

The battery 100 provided by the embodiment of the application comprises a box body 10, a battery cell 20 and a first supporting member 30. The case 10 has a housing chamber 10a. A plurality of battery cells 20 are disposed in the accommodation chamber 10a. The first support 30 is disposed between the adjacent battery cells 20. And abuts against the side surface of the battery cell 20. The first support 30 extends in the height direction of the battery cell 20 so that the first support 30 can transmit force between the top of the case 10 and the bottom of the case 10. So, the impact force that box 10 received can transmit to first support piece 30, and first support piece 30 and then with the impact force conversion become with the pressure between the box 10 to through setting up first support piece 30 between adjacent battery monomer 20, and with the side butt of battery monomer 20, and then with the impact force conversion become with the shearing force between the battery monomer 20, can avoid to a certain extent that the impact force that box 10 received directly converts into the pressure to battery monomer 20, thereby improve the problem that battery monomer 20 takes place the deformation, improved battery 100's bulk strength.

In some embodiments, referring to fig. 5 and 6, battery 100 includes a second support 40. The second support 40 is disposed between the shoulder 20a of the battery cell 20 and the case 10. The second support 40 is capable of transmitting force between the battery cell 20, the first support 30, and the case 10.

The second support 40 is disposed between the shoulder 20a of the battery cell 20 and the case 10, and can be used to stabilize the vibration amplitude of the battery cell 20 in a vibration environment.

The shoulder 20a of the battery cell 20 is the opposite edge position of the end of the battery cell 20 having the pole 21, and the shoulder 20a of the battery cell 20 is located at the junction of the housing 22 and the end cap 23. The second support 40 is provided on the shoulder 20a of the battery cell 20 so as to avoid the post 21 and the corresponding bus bar member of the battery cell 20.

The second supporting member 40 is disposed between the shoulder 20a of the battery cell 20 and the case 10, and the structural strength of the shoulder 20a of the battery cell 20 is greater than that of the middle of the battery cell 20, so that the impact force can be transmitted to the shoulder 20a of the battery cell 20 through the second supporting member 40 by disposing the second supporting member 40 between the shoulder 20a of the battery cell 20 and the case 10, thereby reducing the energy impact to the middle of the battery cell 20 and further improving the problem of deformation of the battery cell 20.

The second support 40 is capable of transmitting force between the battery cell 20, the first support 30, and the case 10. That is, the case 10 can transmit the force to the shoulder 20a of the battery cell 20 through the second support 40. The stress of the shoulder 20a of the battery cell 20 can be transmitted to the case 10 through the first support 30 or converted into a shearing force between the first support 30 and the battery cell 20. That is, after the case 10 receives the impact force, the impact force can be transmitted to the shoulder 20a of the battery cell 20 through the second support 40, the impact force received by the shoulder 20a of the battery cell 20 can be converted into the pressure between the first support 30 and the case 10 and the shear force between the first support 30 and the battery cell 20 through the first support 30, and the impact force received by the case 10 can be prevented from being directly converted into the pressure to the battery cell 20 to a certain extent, thereby improving the problem of deformation of the battery cell 20.

By arranging the first supporting member 30 so that the first supporting member 30 can transfer force between the top of the case 10 and the bottom of the case 10, the top of the case 10 participates in the impact force received by the bottom of the case 10, so that the impact force received by the bottom of the case 10 is distributed to the whole battery 100, and meanwhile, the battery cell 20 is hidden in the grid-shaped trench formed by the first supporting member 30 and the second supporting member 40, thereby improving the deformation condition of the structure of the battery cell 20.

The case 10 can press the second support 40 against the battery cell 20, thereby restricting the vibration of the battery cell 20 from being stabilized. When the second supporting member 40 is connected to the adjacent two battery cells 20, the relative displacement of the adjacent two battery cells 20 in the up-down direction can be reduced, thereby improving the overall stability of the battery 100.

It will be appreciated that referring to fig. 1 and 3, in some embodiments, the second support members 40 are aligned along the length. The length direction is a direction perpendicular to the two narrow sidewalls of the battery cell 20. I.e. in the length direction in fig. 1. The width of the two second supporting pieces 40, which are located at both sides in the length direction, is smaller than the width of the remaining second supporting pieces 40. The remaining second supports 40 can be pressed against the shoulders 20a of two adjacent battery cells 20 stacked in the length direction, and the two second supports 40 at both sides in the length direction are respectively pressed against the shoulders 20a of the corresponding one of the battery cells 20 at both sides stacked in the length direction.

The shape of the second support 40 is not limited. For example, referring to fig. 6, the second supporting member 40 may be, for example, an elongated shape. The second support 40 may be a hollow structure to save material.

The material of the second support 40 is not limited and may be plastic or rubber, for example.

In some embodiments, referring to fig. 3-5, battery 100 includes a connector 50. The connection member 50 enables the second support member 40 to be connected with the battery cell 20, the first support member 30, and the case 10, respectively. The connection member 50 is capable of transmitting force between the battery cell 20, the first support member 30, the second support member 40, and the case 10.

The connection member 50 enables the second support member 40 to be connected with the battery cell 20, the first support member 30, and the case 10, respectively. That is, the second support 40 is connected to the battery cell 20 through the connection member 50, the second support 40 is connected to the first support 30 through the connection member 50, and the second support 40 is connected to the case 10 through the connection member 50. It is understood that the connection member 50 is provided between the second support member 40 and the battery cell 20, the connection member 50 is provided between the second support member 40 and the first support member 30, and the connection member 50 is also provided between the second support member 40 and the case 10.

The connection member 50 is capable of transmitting force between the battery cell 20, the first support member 30, the second support member 40, and the case 10. That is, the case 10 is capable of transmitting force to the battery cell 20 through the connection member 50 and the second support member 40. The stress of the shoulder 20a of the battery cell 20 can be converted into the pressure between the first support 30 and the case 10 and the shear force between the first support 30 and the battery cell 20 through the first support 30, thereby further increasing the passage of the force transmission between the battery cell 20 and the case 10 and improving the overall structural strength.

In some embodiments, referring to fig. 3 to 5, the battery 100 includes a plate 60, the plate 60 is disposed between the second support member 40 and the case 10, a groove 60a is formed on a side of the plate 60 facing the second support member 40, and the second support member 40 is disposed in the groove 60a.

The plate 60 is located in the receiving chamber 10a of the case 10 and contacts the inner wall of the case 10. The plate 60 serves to support the case 10, further improving the overall strength of the battery 100.

The plate 60 can be removed when the energy impact is low.

The plate 60 is disposed between the second support 40 and the case 10, and the connection member 50 connects the plate 60 and the second support 40. It will be appreciated that the connector 50 is capable of transmitting force between the second support 40 and the plate 60. In this way, the case 10 can transmit the force to the second supporting member 40 through the plate 60 and the connection member 50, so that the case 10 is supported. When the second support member 40 is stressed near the pole 21, the stress can be transmitted to the case 10 through the connecting member 50 and the plate 60, so that the second support member 40 is supported by the case 10.

It should be noted that, since there may be an uneven area on the inner wall of the case 10, a portion of the uneven area may be located opposite to the post 21 of the battery cell 20 or the second support member 40, which affects the force transmission effect. Through setting up plate 60, can make each battery monomer 20 all pass through plate 60 and pass power to box 10, and then improve holistic intensity.

In some embodiments, with continued reference to fig. 3-5, battery 100 includes connector 50. A connection member 50 is provided between the first support member 30 and the case 10. The connection 50 is capable of transmitting force between the first support 30 and the case 10.

That is, both ends of the first support 30 may transmit force between the connection member 50 and the case 10.

It will be appreciated that the case 10 is capable of transmitting a force to the battery cell 20 through the connection member 50 and the second support member 40. The stress of the shoulder 20a of the battery cell 20 can be converted into the pressure between the first support 30 and the case 10 and the shear force between the first support 30 and the battery cell 20 by the first support 30, and the other end of the first support 30 transfers force between the connecting piece 50 and the case 10, thereby supporting the battery cell 20 by the case 10. The stress on one side of the box 10 can be transferred to the opposite side of the box 10 through the connecting piece 50, the first supporting piece 30 and the second supporting piece 40, and the other side of the box 10 can play a supporting role, so that the overall strength is further improved.

It will be appreciated that the configuration of the connector 50 is not limited. In some embodiments, the connection 50 is an insulating glue layer. The insulating adhesive layer has the function of bonding and fixing, so that the connection stability of the bonded parts in vibration and moving scenes is improved. Taking the connection 50 between the first support 30 and the case 10 as an example: when the second supporting member 40 and the plate 60 are provided between the first supporting member 30 and the case 10, the insulating adhesive layer is disposed between the second supporting member 40 and the first supporting member 30, between the second supporting member 40 and the battery cell 20, between the second supporting member 40 and the plate 60, and between the plate 60 and the case 10, so that the first supporting member 30, the second supporting member 40, the battery cell 20, the plate 60, and the case 10 are adhesively fixed to improve the connection stability of the first supporting member 30, the second supporting member 40, the battery cell 20, the plate 60, and the case 10 in a vibration environment.

In addition, the insulating glue layer can also play an insulating role.

In some embodiments, the insulating glue layer is formed by glue spreading or glue injection.

If the insulating adhesive layer is formed by an adhesive distribution manner, taking an insulating adhesive layer between the first supporting member 30 and the battery cell 20 as an example: glue is distributed at preset positions on the battery cells 20 to form an insulating glue layer, and the first supporting piece 30 is arranged at the insulating glue layer to be adhered and fixed.

If the insulating adhesive layer is formed by injecting adhesive, taking an insulating adhesive layer between the first supporting member 30 and the battery cell 20 as an example: the first supporting member 30 is disposed between the adjacent battery cells 20 and is abutted against the side surfaces of the battery cells 20, and then is injected with glue for curing and molding. Thereby forming the insulating glue layer fast and improving the assembly efficiency.

In some embodiments, the insulating glue layer is an epoxy glue.

In some embodiments, referring to fig. 3, battery 100 includes a tab 70. The tabs 70 are disposed in the accommodating cavity 10a, the tabs 70 are connected to the poles 21 of the plurality of battery cells 20, and the tabs 70 can transfer force with the poles 21. An insulating member is provided between the tab 70 and the case 10, and the insulating member can transmit force between the tab 70 and the case 10.

The tabs 70 are made of a conductive material. Such as copper, aluminum, or copper aluminum composites, which serve as electrical connections, fixtures, etc. in battery 100.

The tabs 70 are disposed in the receiving chamber 10a and are connected to the poles 21 of the plurality of battery cells 20. It will be appreciated that the electrical connection of the plurality of battery cells 20 is achieved by the tabs 70 connecting the poles 21 of the plurality of battery cells 20.

The tabs 70 are capable of transmitting force to and from the pole 21. That is, the tab 70 is able to transmit a force to the pole 21, thereby allowing the tab 70 to be supported.

It will be appreciated that the manner of connection of the tabs 70 to the cells 20 is not limited to enable the transfer of force to each other. In some embodiments, the tab 70 is welded to the battery cell 20, so that the connection reliability between the tab 70 and the battery cell 20 is good, and the tab is not easy to loosen in moving and vibrating environments.

An insulator is provided between the tab 70 and the case 10. The insulating member has high insulation, and can insulate the tab 70 from the case 10.

It should be noted that the insulating member in this embodiment may be an insulating glue layer as described above.

The insulator is capable of transmitting force between the tab 70 and the case 10. That is, the case 10 can transmit the force to the tab 70 through the insulating member, so that the case 10 is supported, and the case 10 can also support the tab 70.

In the embodiment of the application, the insulating member can transfer force between the tab 70 and the case 10, and the tab 70 can transfer force with the pole 21. The stress of the case 10 can be transferred to the pole 21 of the battery cell 20 and supported by the pole 21 of the battery cell 20, so that the strength of the pole 21 is effectively utilized, and the overall strength of the battery 100 is improved.

In some embodiments, referring to fig. 3 to 5, a side of the plate 60 facing the second support member 40 has a groove 60a, and the second support member 40 is disposed in the groove 60a. During assembly, the second supporting pieces 40 can be respectively positioned through the grooves 60a, and the displacement of the second supporting pieces 40 along the width direction can be limited by the grooves 60a, so that the connection reliability of the second supporting pieces 40 and the plate 60 in a vibration scene is improved.

Wherein the extending direction of the groove 60a is the same as the second supporting member 40. The width of the bottom surface of the groove 60a is the same as the width of the side of the second support member 40 facing the groove 60a or slightly greater than the width of the side of the second support member 40 facing the groove 60a, so that the side of the second support member 40 facing the groove 60a can be attached to the bottom surface of the groove 60 a.

Wherein the opening of the recess 60a of the plate 60 presents a flared structure in cross section to guide the positioning of the second support 40. At least one second support 40 is disposed within each recess 60 a. When the plurality of second supporting members 40 are disposed in the groove 60a, each of the second supporting members 40 is disposed in sequence along the length direction of the groove 60 a.

Wherein the depth of the groove 60a is smaller than the height of the second support 40. When the second support 40 is disposed in the groove 60a, a portion of the second support 40 can protrude out of the groove 60a, such that the second support 40 is conveniently disposed at the shoulder 20a of the battery cell 20.

In some embodiments, referring to fig. 7, at least one end of the first support member 30 in the height direction is formed with a glue storage groove 30a, and the glue storage groove 30a can be used to receive a portion of the connection member 50.

It should be noted that, at least one end of the first support member 30 along the height direction is formed with a glue storage groove 30a, which may be formed with the glue storage groove 30a at the top end of the first support member 30, may be formed with the glue storage groove 30a at the bottom end of the first support member 30, and may be formed with the glue storage groove 30a at both the top end and the bottom end of the first support member 30.

Taking the insulating glue layer formed by taking the connecting piece 50 as an injecting glue mode as an example, when the first supporting piece 30 is arranged between the adjacent battery monomers 20 and is abutted against the side surfaces of the battery monomers 20, the injecting glue is solidified to form the insulating glue layer, so as to avoid glue overflow, namely, to avoid that the fluid insulating glue flows to the side surfaces of the battery monomers 20 where the first supporting piece 30 is not arranged, the performance of the battery 100 is affected, and the glue storage groove 30a is formed at the end part of the first supporting piece 30, and can be used for storing glue, namely, accommodating part of the connecting piece 50, so that the performance of the battery 100 is ensured.

It should be noted that, the size of the glue storage groove 30a is not limited herein, as long as the glue storage groove can have a certain glue storage capacity, and the structural strength of the first support member 30 is not affected.

In some embodiments, referring to fig. 3 to 5, the battery 100 includes a plate 60, the plate 60 is disposed between the first support 30 and the case 10, and the plate 60 is capable of transmitting force between the first support 30 and the case 10.

The plate 60 is disposed between the first support 30 and the case 10, and the connection member 50 connects the plate 60 and the case 10. It will be appreciated that the connector 50 is capable of transmitting force between the housing 10 and the plate 60. In this manner, the case 10 can transmit the force to the first support 30 through the plate 60, so that the case 10 is supported. When the first support member 30 is stressed on the side close to the pole 21, the stress can be transmitted to the case 10 through the connecting member 50, so that the second support member 40 is supported by the case 10, and force transmission of the first support member 30 between the top of the case 10 and the bottom of the case 10 is realized.

It should be noted that, the plate 60 is disposed between the first supporting member 30 and the case 10, which may be that the plate 60 is disposed between the top of the first supporting member 30 and the top of the case 10, or that the plate 60 is disposed between the bottom of the first supporting member 30 and the bottom of the case 10, or that the plate 60 is disposed between the top of the first supporting member 30 and the top of the case 10, or between the bottom of the first supporting member 30 and the bottom of the case 10.

Illustratively, the number of the plate members 60 is two, and the two plate members 60 are respectively disposed at both ends of the first support 30 in the height direction.

By providing the plate members 60 at both ends of the first support member 30 in the height direction, the structural strength of the battery 100 is further improved.

In some embodiments, referring to fig. 3 to 7, the case 10 includes an upper cover 11 and a lower cover 12, the upper cover 11 is positioned at an end of the battery cell 20 facing away from the pole 21 of the battery cell 20, the lower cover 12 is positioned at an end of the pole 21 of the battery cell 20, and the first support 30 is capable of transmitting force between the upper cover 11 and the lower cover 12.

It will be appreciated that the upper cover 11 and the lower cover 12 enclose the receiving chamber 10a. In some embodiments, upper cover 11 is positioned above bottom cover 12 after battery 100 is assembled to vehicle 1000.

The upper cover 11 is located at one end of the battery cell 20 facing away from the pole 21, and the bottom cover 12 is located at one end of the pole 21 of the battery cell 20, i.e. the battery cell 20 is arranged upside down, and one end of the pole 21 of the battery cell 20 faces downwards.

The first support 30 is capable of transmitting force between the upper cover 11 and the lower cover 12. The bottom cover 12 can transmit the force to the upper cover 11 through the first support 30, that is, the upper cover 11 and the bottom cover 12 commonly receive the impact force received by the bottom cover 12, so that the impact force received by the bottom cover 12 is distributed to the entire battery 100, and the deformation of the battery cells 20 is improved.

It should be noted that, since the pole 21 of the battery cell 20 needs to be kept free, the impact-receiving capability of one side of the bottom cover 12 is reduced. While the bottom cover 12 of the battery 100 of some vehicles 1000 is close to the ground, its ability to withstand impacts directly affects the safety of the battery 100. In the above embodiment, by arranging the first supporting member 30 so that the first supporting member 30 can transfer force between the upper cover 11 and the bottom cover 12, the impact force received by the bottom cover 12 can be transferred to the first supporting member 30, the first supporting member 30 converts the impact force into the pressure between the upper cover 11, and the first supporting member 30 is arranged between the adjacent battery cells 20 and is abutted against the side surfaces of the battery cells 20, so that the impact force is converted into the shearing force between the battery cells 20, the impact force received by the bottom cover 12 can be prevented from being directly converted into the pressure to the battery cells 20 to a certain extent, the problem that the battery cells 20 deform is solved, and the overall strength of the battery 100 is improved.

In some embodiments, the battery 100 is mounted on the vehicle 1000, and the pole 21 of the battery cell 20 is disposed downward on the vehicle 1000.

It will be appreciated that when the pole 21 of the battery cell 20 is disposed downward, it is advantageous to provide the second support 40 between the shoulder 20a of the battery cell 20 and the case 10, which can be used to stabilize the vibration amplitude of the battery cell 20 in a vibrating environment. The structural strength of the shoulder 20a of the battery cell 20 is greater than that of the middle part of the battery cell 20, so that the impact force can be transmitted to the shoulder 20a of the battery cell 20 through the second support 40 by arranging the second support 40 between the shoulder 20a of the battery cell 20 and the box 10, the energy impact on the middle part of the battery cell 20 is reduced, and the problem of deformation of the battery cell 20 is further improved.

That is, after the bottom cover 12 receives the impact force, the impact force can be transmitted to the shoulder 20a of the battery cell 20 through the second support 40, the impact force received by the shoulder 20a of the battery cell 20 can be converted into the pressure between the first support 30 and the upper cover 11 and the shear force between the first support 30 and the battery cell 20 through the first support 30, and the impact force received by the bottom cover 12 can be prevented from being directly converted into the pressure to the battery cell 20 to a certain extent, thereby improving the problem of deformation of the battery cell 20.

In one embodiment, referring to fig. 1 to 7, a battery 100 includes a case 10, a battery cell 20, a first support 30, a second support 40, a connection member 50, and a plate 60. The case 10 includes an upper cover 11 and a bottom cover 12, the upper cover 11 and the bottom cover 12 enclose a receiving chamber 10a, and a plurality of battery cells 20 are disposed in the receiving chamber 10 a. The first support 30 is disposed between the adjacent battery cells 20. And abuts against the side surface of the battery cell 20. The upper cover 11 is positioned at an end of the battery cell 20 facing away from the post 21 of the battery cell 20, the bottom cover 12 is positioned at an end of the post 21 of the battery cell 20, and the first support 30 is capable of transmitting force between the upper cover 11 and the bottom cover 12. The second support 40 is disposed between the shoulder 20a of the battery cell 20 and the bottom cover 12. The battery 100 includes a plate 60, the plate 60 is disposed between the second support 40 and the bottom cover 12, a groove 60a is formed on a side of the plate 60 facing the second support 40, and the second support 40 is disposed in the groove 60a. The battery 100 is composed of a bottom cover 12, a bottom plate, a second support member 40, a first support member 30, a battery cell 20, and an upper cover 11 from bottom to top. And the bottom cover 12, the bottom plate and the second supporting member 40 are connected with the first supporting member 30, the battery cell 20 and the upper cover 11 through the connecting member 50, and the connecting member 50 is an insulating glue layer. When the bottom of the battery 100 receives the impact force, the impact force is firstly transferred to the shoulder 20a of the battery cell 20 through the second support member 40 after the energy of the bottom cover 12 and the bottom plate is buffered, and then the shoulder 20a of the battery cell 20 and the first support member 30 simultaneously bear the impact force, wherein the first support member 30 can convert the impact force into the pressure between the first support member 30 and the upper cover 11 and the shearing force between the first support member 30 and the battery cell 20, the upper cover 11 and the bottom cover 12 bear the impact force of the bottom cover 12 together, so that the impact force of the bottom cover 12 is distributed to the whole battery 100, and the battery cell 20 is hidden in the grid-shaped trench formed by the first support member 30 and the second support member 40, so that the impact force of the bottom cover 12 can be prevented from being directly converted into the pressure on the battery cell 20 to a certain extent, and the problem of deformation of the battery cell 20 is solved.

In this embodiment, compared with the battery 100 without the first support 30, the battery cell 20 can bear more than 6 times of energy impact without safety problem, and the deformation problem of the battery cell 20 is improved.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (12)

1. A battery, comprising:

the box body is provided with a containing cavity;

The battery cells are arranged in the accommodating cavity;

The first supporting piece is arranged between the adjacent battery cells and is abutted to the side faces of the battery cells, and the first supporting piece extends along the height direction of the battery cells so that the first supporting piece can transfer force between the top of the box body and the bottom of the box body.

2. The battery of claim 1, comprising a second support disposed between the shoulder of the battery cell and the case, the second support being capable of transmitting force between the battery cell, the first support, and the case.

3. The battery of claim 2, comprising a connector enabling the second support to connect with the battery cell, the first support, and the case, respectively, the connector enabling force transfer between the battery cell, the first support, the second support, and the case.

4. The battery of claim 2, wherein the battery comprises a plate disposed between the second support and the case, the plate having a groove on a side facing the second support, the second support being disposed in the groove.

5. The battery of claim 1, wherein the battery includes a connector disposed between the first support and the housing, the connector being capable of transmitting force between the first support and the housing.

6. The battery according to claim 5, wherein at least one end of the first support member in the height direction is formed with a glue storage groove, which can be used to receive a portion of the connection member.

7. The battery of claim 5, wherein the connector is an insulating glue layer.

8. The battery of claim 1, wherein the battery comprises a plate disposed between the first support and the housing, the plate being capable of transferring force between the first support and the housing.

9. The battery according to claim 8, wherein the number of the plate members is two, and two of the plate members are respectively provided at both ends of the first support member in the height direction.

10. The battery of any one of claims 1-9, wherein the housing comprises an upper cover at an end of the battery cell facing away from the post of the battery cell and a bottom cover at an end of the post of the battery cell, the first support being capable of transmitting force between the upper cover and the bottom cover; and/or the first support piece is a metal piece, or a composite material piece, or a heat insulation piece.

11. A powered device comprising a battery as claimed in any one of claims 1-10, the battery being configured to provide electrical energy to the powered device.

12. The powered device of claim 11, wherein the powered device is a vehicle, and the battery cell has a pole that faces downward on the vehicle.