CN216015534U - Bracket component, battery module, battery and power consumption device - Google Patents

Abstract

The application discloses bracket component, battery module, battery and power consumption device. The bracket component comprises a bracket and a gland. The bracket includes a plurality of receiving cavities. The accommodating cavity is used for accommodating and placing the cylindrical battery core and limiting the axial first end of the cylindrical battery core. The gland is connected with the support in a clamping mode and is pressed against the end face of the axial second end of the plurality of cylindrical battery cells to limit the axial second end of the cylindrical battery cells. After placing cylinder electricity core in holding the cavity, hold the cavity and can form the radial and spacing of axial first end to cylinder electricity core, can form the spacing to a plurality of cylinder electricity core second ends with the gland joint on the support, whole assembly process is simple. And the accommodating cavity for accommodating the cylindrical battery core is formed by only one structure of the bracket without being matched with other structures, so that the assembly difficulty is reduced.

Description

Bracket component, battery module, battery and power consumption device

Technical Field

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

Background

Energy conservation and emission reduction are the key points of sustainable development of the automobile industry, and electric vehicles become important components of the sustainable development of the automobile industry due to the advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in its development.

The battery is a product formed by combining a plurality of battery cells in a series and/or parallel mode. How to reduce the assembly difficulty of the battery is a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The application provides a bracket component, battery module, battery and power consumption device to reduce the assembly degree of difficulty of battery.

The first aspect of this application provides a bracket component for fixed a plurality of cylinder electricity core, including support and gland, the support includes a plurality of cavitys that hold, holds the cavity and is used for holding and places cylinder electricity core and spacing to the axial first end of cylinder electricity core. The gland is connected with the support in a clamping mode and is pressed against the end face of the axial second end of the plurality of cylindrical battery cells to limit the axial second end of the cylindrical battery cells.

Among the technical scheme of this application embodiment, the bracket component includes support and gland, places cylinder electricity core back in holding the cavity, holds the cavity and can form the radial and spacing of axial first end to cylinder electricity core, can form the spacing to a plurality of cylinder electricity core second ends with the gland joint on the support, and whole assembling process is simple. And be used for holding cylinder electricity core and form by only a structure of support with radially carrying on spacing holding cavity to cylinder electricity core, and need not to cooperate with other structures, reduced the assembly degree of difficulty.

In some embodiments, the bracket assembly further comprises a snap structure disposed on the bracket, and the gland is snapped with the snap structure. The support includes buckle structure, directly can realize the joint between gland and the support with the gland joint on buckle structure like this, and then realizes that the gland is spacing to the axial of cylinder electricity core, and the assembly is simple.

In some embodiments, the cover has a snap hole, and the snap structure snaps into the snap hole. Set up the card hole on the gland, the direct joint of buckle structure is in card hole department, and when the assembly, direct orientation near the support press the gland and make the buckle structure joint in card hole department can, assembly process is simple and convenient.

In some embodiments, the snap structure comprises a snap post extending along the axial direction and a snap arranged on the snap post, and the snap post passes through a snap hole on the gland and enables the snap to be clamped with the gland. The buckle sets up on the joint post, can make buckle and gland joint when the joint post passes the card hole on the gland like this, and assembly process is simple.

In some embodiments, the bracket assembly includes at least two snap features that snap into engagement with the gland. The number of the buckle structures clamped with the gland is increased, so that the connection reliability between the gland and the support can be improved, and the fixing reliability of the cylindrical battery cell is improved.

In some embodiments, the gland includes a gland body and a positioning edge disposed on a lower side of the gland body, the positioning edge abuts against outer walls of the plurality of cylindrical battery cells, and an edge of the gland body exceeds the positioning edge in a radial direction to press against an end face of the cylindrical battery cell. The downside of gland body sets up the location limit, and this location limit matches with the at least partial outer wall shape of cylinder electricity core so that the outer wall butt of location limit and cylinder electricity core, when the gland presses on the cylinder electricity core like this, on radial direction, the gland also receives the restriction of a plurality of cylinder electricity cores on every side simultaneously, improves the positional stability of gland, and then improves the gland to the ascending fixed reliability of cylinder electricity core axial.

In some embodiments, the support comprises a support body and a first cylindrical cavity and a second cylindrical cavity which are respectively arranged at an axial first end and an axial second end of the support body, the first cylindrical cavity and the second cylindrical cavity are coaxially arranged, the support body is hollow so that the first cylindrical cavity and the second cylindrical cavity are communicated, and the gland is clamped with the support body. The supporter plays the effect of first cylinder cavity of intercommunication and second cylinder cavity in the axial, and the supporter still plays the effect of connecting a plurality of first cylinder cavities and connecting a plurality of second cylinder cavities simultaneously. Make a plurality of first cylinder cavitys and a plurality of second cylinder cavitys form wholly like this, simplify the structure of support, and can reduce the assembly degree of difficulty.

In some embodiments, the support is a square cavity. Set up the supporter into square cavity, that is to say each side of supporter is the plane, when the battery includes a plurality of battery module like this, accessible each side between the supporter between a plurality of battery module's the support mutually contacts the butt and puts, and the butt between plane and the plane makes battery module's position stable, consequently makes things convenient for battery module's arranging.

In some embodiments, the support body is provided with a glue injection port, and the glue injection port is used for injecting bonding glue into the inner cavity of the support body. Glue is injected into the inner side through the glue injection port, so that the bonding is realized between the cylindrical battery cell and the cylindrical battery cell inside the supporting body and between the cylindrical battery cell and the supporting body, and the reliability of fixing the battery cell is further enhanced.

In some embodiments, the stent further comprises an annular retaining rim disposed at the first end of the first cylindrical cavity, the annular retaining rim extending radially inward of the first cylindrical cavity. The annular limiting edge extends and distributes along the circumferential direction of the first cylindrical cavity, and then limiting is formed on different positions of the cylindrical battery core in the circumferential direction. And the annular limiting edges are only distributed at the radial outer side close to the edge of the first cylindrical cavity, so that the exposure of the electrode terminal of the cylindrical battery cell is not influenced

In some embodiments, the bracket is integrally formed. When assembling battery module like this, as long as put into a plurality of holding cavities of support with a plurality of cylinder electricity core in proper order, then can realize gland and support joint, whole assembly process is simple.

In some embodiments, the axial length of the receiving cavity is less than the axial length of the cylindrical cell, such that the second end of the cylindrical cell exceeds the receiving cavity. The second end of cylinder electricity core surpasss and holds the cavity, can guarantee that the electrode terminal of cylinder electricity core exposes in the outside, makes things convenient for cylinder electricity core and outside electricity to be connected.

The second aspect of the present application provides a battery module, which includes a plurality of cylindrical cells and the above-mentioned bracket assembly.

The third aspect of the application provides a battery, including box and above-mentioned battery module, battery module sets up in the box, and bracket component and box are connected.

The fourth aspect of the present application provides an electric device, comprising the above battery, wherein the battery is used for providing electric energy.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

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

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

Fig. 2 is a perspective view of an angle of a battery module according to some embodiments of the present application.

Fig. 3 is a schematic perspective view of another angle of a battery module according to some embodiments of the present application.

FIG. 4 is a perspective view of an angle of a stent according to some embodiments of the present application.

FIG. 5 is a schematic perspective view of another angle of a stent according to some embodiments of the present application.

Fig. 6 is a front view of a stent according to some embodiments of the present application.

Figure 7 is a perspective view of a gland according to some embodiments of the present application.

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

Description of the marks

100. A vehicle;

10. a battery; 20. a controller; 30. a motor;

1. a support;

11. a support body; 111. a glue injection port; 12. a first cylindrical cavity; 13. a second cylindrical cavity; 14. an annular limiting edge; 15. a buckle structure; 151. a clamping column; 152. buckling;

2. a gland;

21. a clamping hole; 22. a gland body; 23. positioning the edge;

4. and (5) a cylindrical battery cell.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

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 "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the examples of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more, and similarly, "plural sets" refers to two or more, and "plural pieces" refers to two or more.

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, 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 otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The cylindrical battery cell comprises an electrode assembly and electrolyte, wherein the electrode assembly is formed by winding a positive plate, a negative plate and a diaphragm. The positive plate comprises a positive current collector and a positive active substance layer, wherein the positive active substance layer is coated on the surface of the positive current collector, the current collector which is not coated with the positive active substance layer protrudes out of the current collector which is coated with the positive active substance layer, and the current collector which is not coated with the positive active substance layer is used as a positive electrode lug. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, or the like. The negative pole piece includes negative current collector and negative pole active substance layer, and the negative pole active substance layer coats in the surface of negative current collector, and the mass flow body protrusion in the mass flow body of coating the negative pole active substance layer of uncoated negative pole active substance layer, the mass flow body of uncoated negative pole active substance layer is as negative pole utmost point ear. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. In order to ensure that the fuse is not fused when a large current is passed, the number of the positive electrode tabs is multiple and the positive electrode tabs are stacked together, and the number of the negative electrode tabs is multiple and the negative electrode tabs are stacked together. The material of the diaphragm can be PP or PE, etc.

For a battery formed by combining a plurality of cylindrical battery cores, the plurality of cylindrical battery cores need to be combined and fixed by means of a support during assembly. The inventor analyzes the assembly process of the battery in the related technology, and finds that the main reason of the current battery assembly difficulty is that: during the assembly, need insert respectively in a plurality of constant head tanks of one of them support with the respective first end of all cylinder electricity cores earlier, aim at the respective second end of all cylinder electricity cores with a plurality of constant head tanks on another support again, later with this support lock at the second end of cylinder electricity core, when the processing error of the constant head tank of two supports appears, can lead to the assembly difficulty like this.

To the problem of above assembly difficulty, the inventor of this application provides a bracket component for fixing a plurality of cylinder electricity core, and this bracket component includes support and gland, places cylinder electricity core back in holding the cavity, holds the cavity and can form the radial and spacing of axial first end to cylinder electricity core, can form spacing to a plurality of cylinder electricity core second ends with the gland joint on the support, and whole assembly process is simple. And the accommodating cavity for accommodating the cylindrical battery core is formed by only one structure of the bracket without being matched with other structures, so that the assembly difficulty is reduced.

For convenience of description, the following embodiments will be described by taking a power consuming device according to an embodiment of the present application as an example of a vehicle 100.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 100 according to some embodiments of the present disclosure. The vehicle 100 may be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile may be a pure electric automobile, a hybrid electric automobile, or a range-extended automobile, etc. The interior of the vehicle 100 is provided with the battery 10, and the battery 10 may be provided at the bottom or the head or the tail of the vehicle 100. The battery 10 may be used for power supply of the vehicle 100, and for example, the battery 10 may serve as an operation power source of the vehicle 100. The vehicle 100 may also include a controller 20 and a motor 30, the controller 20 being configured to control the battery 10 to power the motor 30, for example, for operational power requirements at start-up, navigation, or travel of the vehicle 100.

In some embodiments of the present application, the battery 10 may be used not only as an operating power source of the vehicle 100, but also as a driving power source of the vehicle 100, instead of or in part of fuel or natural gas, to provide driving power for the vehicle 100.

The battery 10 includes a case and a battery module disposed in the case. The box is used for providing accommodation space for the battery module, and the box can adopt multiple structures. In some embodiments, the case may include a first portion and a second portion that cover each other, and the first portion and the second portion together define a receiving space for receiving the battery module. The second part may be a hollow structure with one open end, the first part may be a plate-shaped structure, and the first part covers the open side of the second part so that the first part and the second part together define a receiving space. The first part and the second part can be hollow structures with one side opened, and the opening side of the first part is covered on the opening side of the second part. Of course, the box formed by the first and second portions may be of various shapes, such as a cylinder, a rectangular parallelepiped, etc. In the battery 10, the number of battery modules may be one or more, and a plurality of battery modules may be connected in series, parallel, or series-parallel to achieve a larger capacity or power.

Referring to fig. 2, the battery module includes a rack assembly and a plurality of cylindrical cells 4. Wherein the rack assembly is used for fixing a plurality of cylindrical cells 4. The bracket component can be connected with the box, can make battery module installation firm in the box like this, for example when being used for in the vehicle, prevent that battery 10 from taking place the drunkenness when receiving the vibration impact in the box to improve battery 10's reliability in service and life-span.

Referring to fig. 2 and 3, the bracket assembly provided in the embodiment of the present application is used to fix a plurality of cylindrical battery cells 4. The bracket assembly comprises a bracket 1 and a gland 2. The holder 1 comprises a plurality of receiving cavities. The accommodating cavity is used for accommodating and placing the cylindrical battery core 4 and limiting the axial first end of the cylindrical battery core 4. Gland 2 and 1 joint of support are held spacingly with the axial second to cylindrical battery core 4 on pressing the terminal surface of the axial second end of a plurality of cylindrical battery cores 4.

The holder 1 forms the body part of the holder assembly. The holder 1 comprises a plurality of receiving cavities. Each accommodating cavity is used for accommodating and placing a single cylindrical battery cell 4 so as to limit the radial direction of the cylindrical battery cell 4. In the particular embodiment shown in fig. 3, the support 1 comprises a support body 11, a plurality of first cylindrical cavities 12 and a plurality of second cylindrical cavities 13. The supporting body 11 is a hollow structure, so that the plurality of first cylindrical cavities 12 and the plurality of second cylindrical cavities 13 are communicated with each other, that is, each accommodating cavity for accommodating a single cylindrical battery cell 4 is formed by the first cylindrical cavity 12, the second cylindrical cavity 13 and part of the inner cavity of the supporting body 11. The support body 11 plays a role in communicating the first cylindrical cavity 12 and the second cylindrical cavity 13 in the axial direction X, and the support body 11 also plays a role in connecting a plurality of first cylindrical cavities 12 and connecting a plurality of second cylindrical cavities 13. At this time, the first cylindrical cavity 12 and the second cylindrical cavity 13 are coaxially arranged to form a limit for the cylindrical battery core 4. In other embodiments, the accommodating cavity may be a cylindrical cavity which is continuously arranged in the axial direction X, and at this time, the bracket 1 includes a plurality of cylindrical cavities which are independently arranged, and the plurality of cylindrical cavities are connected with each other through a connector, so that after the cylindrical battery cell 4 is placed in the accommodating cavity, the cylindrical cavities which are continuously arranged can naturally form radial spacing for the cylindrical battery cell 4. The support body 11 may have a square, cylindrical, etc. structure.

The support 1 may include more than two accommodating cavities, fig. 2 shows four accommodating cavities, and in other embodiments, the support 1 may also include three accommodating cavities, for example, three accommodating cavities uniformly distributed around the central axis of the support 1, so that the same gland 2 can limit three cylindrical battery cells 4. Similarly, for more than four accommodating cavities, if the accommodating cavities are distributed to be uniformly distributed around the central axis of the support 1, the same gland 2 can be conveniently used for limiting the plurality of cylindrical battery cells 4.

Referring to fig. 2, a gland 2 is provided at an axial second end of the holder 1 and is pressed against an end face of the second end of the plurality of cylindrical cells 4 by snap-fitting with the holder 1. Gland 2 sets up at the middle part of support 1, and gland 2 includes the side of leaning on that corresponds the setting with a plurality of cylinder electricity core 4, and the shape on side of leaning on is the same with the local marginal shape of cylinder electricity core 4 and gland 2 presses the part that is close to the edge of cylinder electricity core 4, makes gland 2 can not influence the electrode terminal of cylinder electricity core 4 and outside electricity to be connected like this.

The bracket component of this application embodiment includes support 1 and gland 2, places cylinder electricity core 4 back in holding the cavity, holds the cavity and can form the radial and spacing of axial first end to cylinder electricity core 4, can form the spacing to a plurality of cylinder electricity core 4 second ends with gland 2 joint on support 1, and whole assembly process is simple. And be used for holding cylindrical electric core 4 and form by only 1 structure of support with radially carrying on spacingly holding the cavity to cylindrical electric core 4, and need not to cooperate with other structures, reduced the assembly degree of difficulty.

In the description of the embodiment of the present application, as shown in fig. 2, the axial direction X refers to a direction in which an axis of the receiving cavity extends, and is coaxial with an axial direction of the cylindrical battery core 4, a plane formed by the first direction Y and the second direction Z is perpendicular to the axial direction X, and the radial direction refers to a radial direction of the receiving cavity.

Referring to fig. 2 and 5, in some embodiments, the bracket 1 further comprises a snap structure 15 connected to the plurality of receiving cavities. The gland 2 is clamped with the clamping structure 15.

The snap structure 15 is a structure that the gland 2 and the bracket 1 form a snap joint. In the embodiment shown in fig. 5 and 6, the catch structure 15 includes a catch post 151 extending in the axial direction X and a catch 152 provided on the catch post 151. As shown in fig. 7, the gland 2 includes a chucking hole 21. The snap post 151 passes through the snap hole 21 of the cover 2 and causes the snap 152 to snap into the cover 2. That is, this embodiment takes the form of the card hole 21 being fitted with the snap 152. In other embodiments, other clamping matching structures may also be used to realize the clamping between the pressing cover 2 and the fastening structure 15, for example, a clamping groove may also be arranged on the pressing cover 2, and a clamping hook is arranged on the fastening structure 15 and is matched with the clamping groove. It is within the scope of the present application as long as the connection between the cover 2 and the bracket 1 is achieved by the snap structure 15.

As shown in fig. 5, the snap structure 15 is provided on the support body 11. Of course, in other embodiments not shown in the drawings, the bracket 1 may also include a plurality of independently arranged cylindrical cavities, each cylindrical cavity is arranged consecutively in the axial direction and connected with each other through a connector, and the snap structure 15 may be arranged on the connector between the cylindrical cavities.

Support 1 includes buckle structure 15, directly can realize the joint between gland 2 and the support 1 with gland 2 joint on buckle structure 15 like this, and then realizes that gland 2 is spacing to the ascending spacing of cylinder electricity core 4 axial, and the assembly is simple.

In some embodiments, referring to fig. 7, the gland 2 has a snap hole 21. The snap structure 15 is snapped in the snap hole 21.

As shown in fig. 7, the gland 2 has two chucking holes 21 arranged at intervals. Correspondingly, as shown in fig. 5, two snap structures 15 are also provided on the supporting body 11 at intervals. The two snap holes 21 and the two snap structures 15 are correspondingly positioned to cooperate with each other. As shown in fig. 7, the card hole 21 is a rectangular hole. As shown in fig. 5, the snap post 151 of the snap structure 15 is circular. Thus, after the engagement posts 151 pass through the engagement holes 21, the planar inner walls of the rectangular holes restrict the movement of the engagement posts 151.

Set up card hole 21 on gland 2, the direct joint of buckle structure 15 is in card hole 21 department, and when the assembly, direct orientation that is close to support 1 presses gland 2 and makes the 15 joints of buckle structure can in card hole 21 department, assembly process simple and convenient like this. And adopt the card mode of card hole 21 and buckle structure 15 complex, simple structure.

In some embodiments, the bracket assembly includes at least two snap features 15, the at least two snap features 15 snap-fitting with the gland 2.

In the embodiment shown in fig. 2 and 5, the bracket assembly comprises two spaced apart catch structures 15. Both snap structures 15 form a snap connection with the gland 2. Specifically, as shown in fig. 5, the bracket 1 includes four second cylindrical cavities 13, one of the two clamping structures 15 is disposed between the two second cylindrical cavities 13 and near the joint of the two second cylindrical cavities 13, and the other clamping structure is disposed between the other two second cylindrical cavities 13 and near the joint of the other two second cylindrical cavities 13. Therefore, the distance between the clamping structure 15 and the cylindrical battery core 4 is shorter, and the positioning effect of the gland 2 on the cylindrical battery core 4 is improved.

Of course, in other embodiments, the bracket assembly may also include more than two snap structures 15, for example, the joint of two adjacent second cylindrical cavities 13 in the third direction Z is also provided with a snap structure 15, and four snap structures 15 may be provided, so that the snap connection between the pressing cover 2 and the bracket 1 is more reliable.

Through the increase and the gland 2 carry out the quantity of the buckle structure 15 of joint, can improve the connection reliability between gland 2 and the support 1, and then improve the fixed reliability of cylinder electricity core 4.

Referring to fig. 6, in some embodiments, the snap feature 15 includes axially extending snap posts 151 and snaps 152 disposed on the snap posts 151. The snap post 151 passes through the snap hole 21 of the cover 2 and causes the snap 152 to snap into the cover 2.

In one particular embodiment, as shown in fig. 5 and 6, the catch 152 is formed by a groove on the catch post 151. That is to say that buckle 152 and joint post 151 are integrated into one piece, like this when installation gland 2, as long as wear to establish joint post 151 in the card hole 21 of gland 2 towards the direction pressure gland 2 of support 1 and just can make the automatic card of buckle 152 establish on gland 2, whole assembling process is simple and convenient. Of course, in other embodiments, the latch 152 may be formed by a protrusion or the like disposed on the latch post 151, the protrusion may have elasticity, and the protrusion may retract under the action of the latch hole wall and then deform back to its original shape after passing through the latch.

The buckle 152 sets up on the joint post 151, can make buckle 152 and gland 2 joint when the joint post 151 passes the card hole 21 on the gland 2 like this, and assembly process is simple.

As shown in fig. 6, two sides of the locking column 151 are formed with locking buckles 152. So that both sides homoenergetic of joint post 151 and gland 2 form the joint, improve the connection reliability.

Referring to fig. 7, in some embodiments, the gland 2 includes a gland body 22 and a locating rim 23 disposed on an underside of the gland body 22. The positioning edge 23 abuts against the outer walls of the plurality of cylindrical battery cells 4. The edge of the gland body 22 projects beyond the positioning edge 23 in the radial direction to press against the end face of the cylindrical cell 4.

As shown in fig. 7, the gland body 22 is a flat plate structure, the positioning edge 23 is connected to the lower side surface of the gland body 22, and the shape of the positioning edge 23 matches the shape of the outer wall of the cylindrical battery cell 4. Specifically, as shown in fig. 7, the positioning edge 23 includes four positioning sections that are matched in shape with the outer wall of the cylindrical battery core 4, and a connecting section that connects two adjacent positioning sections. So that the gland 2 presses simultaneously against the four cylindrical cells 4. When installation gland 2, when gland 2 moved down under the effect of external force, its location limit 23 and four cylinder electricity core 4's outer wall butt for gland 2 is difficult to change in location back position, and then improves gland 2's stability. The downside of gland body 22 sets up location limit 23, and this location limit 23 matches with the at least partial outer wall shape of cylinder electricity core 4 so that location limit 23 and cylinder electricity core 4's outer wall butt, like this when gland 2 presses on cylinder electricity core 4, on radial direction, gland 4 also receives a plurality of cylinder electricity core 4's restriction on every side simultaneously, improves gland 2's positional stability, and then improves gland 2 to the ascending fixed reliability of cylinder electricity core 4 axial.

In some embodiments, with reference to fig. 2 to 4, the stent 1 comprises a supporting body 11 and a plurality of first cylindrical cavities 12 and a plurality of second cylindrical cavities 13 respectively arranged at axial first ends and axial second ends of the supporting body 11. The first cylindrical cavity 12 and the second cylindrical cavity 13 at the corresponding position are coaxially arranged. The support body 11 is hollow so that the first cylindrical cavity 12 and the second cylindrical cavity 13 are communicated, and the gland 2 is clamped with the support body 11.

As shown in fig. 2, the support body 11 connects a plurality of first cylindrical cavities 12 and a plurality of second cylindrical cavities 13. And the supporting body 11 is hollow so that the plurality of cylindrical cavities are communicated with each other. The support body 11 may be square, cylindrical or other shape, and functions to support and connect a plurality of cylindrical cavities.

The support body 11 plays a role in axially communicating the first cylindrical cavity 12 with the second cylindrical cavity 13, and the support body 11 also plays a role in connecting a plurality of first cylindrical cavities 12 and connecting a plurality of second cylindrical cavities 13. Therefore, the plurality of first cylindrical cavities 12 and the plurality of second cylindrical cavities 13 form a whole, the structure of the bracket 1 is simplified, and the assembly difficulty can be reduced.

In some embodiments, the support 11 is a square cavity. The support body 11 is configured as a square cavity, that is, each side surface of the support body 11 is a plane, so that when the battery 10 includes a plurality of battery modules, the supports 1 of the plurality of battery modules can be placed by contacting and abutting each side surface of the support body 11 with each other, and the abutting between the plane and the plane stabilizes the position of the battery modules, thereby facilitating the arrangement of the battery modules.

In some embodiments, the support body 11 has a glue injection opening 111, and the glue injection opening 111 is used for injecting adhesive glue into the inner cavity of the support body 11.

As shown in fig. 3, the glue injection port 111 is provided on a side surface of the support body 11. Because the support body 11 is hollow, the glue injection port 111 is used for injecting glue into the support body 11, so that the plurality of cylindrical battery cells 4 can be bonded with each other, and the cylindrical battery cells 4 and the support body 11 can be bonded with each other.

When needs encapsulating, accessible injecting glue mouth 111 pours into the bonding glue into to the inboard to realize bonding between making the inside cylinder electricity core 4 of supporter 11 and cylinder electricity core 4 and between cylinder electricity core 4 and the supporter 11, further strengthen the fixed reliability of electricity core.

In some embodiments, referring to fig. 3, the stent 1 further comprises an annular stop edge 14 disposed at the first end of the first cylindrical cavity 12. The annular retaining rim 14 extends radially inwardly of the first cylindrical cavity 12.

As shown in fig. 3, the end of each first cylindrical cavity 12 is provided with an annular limiting edge 14, and the annular limiting edge 14 can be integrally formed with the first cylindrical cavity 12. After the cylindrical battery core 4 is placed into the support 1 from one side of the second cylindrical cavity 13, the annular limiting edge 14 can limit the first end of the cylindrical battery core 4.

As shown in fig. 3, the annular limiting edges 14 extend and distribute along the circumferential direction of the first cylindrical cavity 12, so as to form the limiting on different positions of the cylindrical electrical core 4 in the circumferential direction. And the annular limiting edge 14 is only distributed at the radial outer side close to the edge of the first cylindrical cavity, so that the exposure of the cylindrical battery cell electrode terminal is not influenced.

In other embodiments, of course, in order to limit the axial first end of the cylindrical battery cell 4, other limiting structures may be adopted, for example, the first end of the cylindrical battery cell 4 may be limited by at least two parallel or crossed limiting strips, as long as the electrode terminal is exposed. For another example, for an embodiment in which the positive electrode terminal and the negative electrode terminal are both disposed on the second end surface of the cylindrical battery cell 4, the first end of the first cylindrical cavity may be closed to limit the first end of the cylindrical battery cell 4.

In some embodiments, the bracket 1 is integrally formed.

Specifically, the supporting body 11, the first cylindrical cavity 12, the second cylindrical cavity 13, the annular limiting edge 14 and the buckling structure 15 are integrally formed. Just so make the bracket component of this embodiment include two parts, support 1 and gland 2, when assembling battery module, as long as put into a plurality of holding cavities of support 1 with a plurality of cylinder electricity core 4 in proper order, then can realize gland 2 and 1 joint of support, whole assembly process is simple.

In some embodiments, as shown in fig. 2 and 3, the axial length of the receiving cavity is less than the axial length of the cylindrical cell 4, such that the second end of the cylindrical cell 4 exceeds the receiving cavity.

As shown in fig. 2, the second end of the cylindrical battery cell 4 exceeds the edge of the second cylindrical cavity 13, so that the electrode terminal of the cylindrical battery cell 4 is exposed outside, and the cylindrical battery cell 4 is conveniently electrically connected with a bus board and the like.

The embodiment of the present application further provides a battery module, which includes a plurality of cylindrical battery cells 4 and the above-mentioned bracket assembly.

The assembly process of the battery module of the present embodiment is as follows:

put into the cavity that holds that corresponds separately respectively from the second end of support 1 with a plurality of cylinder electricity core 4, each cylinder cavity that holds the cavity forms spacing to the radial direction of cylinder electricity core 4, the spacing limit of annular 14 forms spacing to the axial first end of cylinder electricity core 4, then with 2 joints of gland on buckle structure 15 so that gland 2 presses simultaneously on the terminal surface of the axial second end of a plurality of cylinder electricity core 4 and forms spacing to the axial second end of cylinder electricity core 4, and then realize battery module's assembly.

Further, when the reliability of fixing the battery cell needs to be improved, the adhesive can be injected into the bracket 1 through the adhesive injection port 111, so that the structural strength of the battery module is improved.

The embodiment of the application further provides a battery, which comprises a box body and a battery module, wherein the battery module is arranged in the box body, and the bracket component is connected with the box body. Specifically, for the connection between the bracket assembly and the box body, when glue is injected into the glue injection port 111 on the support body 11, a part of the adhesive glue is injected between the support body 11 and the box body to realize the connection between the bracket assembly and the box body.

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

Finally, it should be noted that: the above examples are only intended to illustrate the technical solutions of the present application and not to limit them; although the present application has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the application or equivalent replacements of some of the technical features may still be made; all of which are intended to be encompassed within the scope of the claims appended hereto without departing from the spirit and scope of the present disclosure.

Claims (15)

1. A rack assembly for securing a plurality of cylindrical cells (4), comprising:

the support (1) comprises a plurality of accommodating cavities, and the accommodating cavities are used for accommodating and placing the cylindrical battery cell (4) and limiting the axial first end of the cylindrical battery cell (4); and

gland (2), gland (2) with support (1) joint is in order to press a plurality of on the terminal surface of the axial second end of cylinder electricity core (4) in order to right the axial second end of cylinder electricity core (4) is spacing.

2. The bracket assembly according to claim 1, wherein the bracket (1) further comprises a snap structure (15) connected to the plurality of receiving cavities, the gland (2) being snap-fitted to the snap structure (15).

3. The bracket assembly according to claim 2, wherein the gland (2) has a snap hole (21), the snap structure (15) being snapped at the snap hole (21).

4. The bracket assembly according to claim 3, characterized in that the snap structure (15) comprises axially extending snap posts (151) and snaps (152) arranged on the snap posts (151), the snap posts (151) passing through snap holes (21) on the gland (2) and causing the snaps (152) to snap into the gland (2).

5. The bracket assembly according to claim 2, characterized in that it comprises at least two of said snap structures (15), at least two of said snap structures (15) being snap-fitted with said gland (2).

6. The bracket assembly according to claim 1, characterized in that the gland (2) comprises a gland body (22) and a positioning edge (23) arranged on the underside of the gland body (22), the positioning edge (23) abutting the outer wall of the plurality of cylindrical cells (4), the edge of the gland body (22) exceeding the positioning edge (23) in the radial direction to press against the end face of the cylindrical cells (4).

7. The support assembly according to any one of claims 1 to 6, characterized in that the support (1) comprises a support body (11) and a first cylindrical cavity (12) and a second cylindrical cavity (13) respectively arranged at an axial first end and an axial second end of the support body (11), the first cylindrical cavity (12) and the second cylindrical cavity (13) being coaxially arranged, the support body (11) being hollow so that the first cylindrical cavity (12) and the second cylindrical cavity (13) are communicated, and the gland (2) being clamped with the support body (11).

8. The rack assembly according to claim 7, characterized in that the support body (11) is a square cavity.

9. The bracket assembly according to claim 7, characterized in that the support body (11) has a glue injection opening (111), and the glue injection opening (111) is used for injecting glue into the inner cavity of the support body (11).

10. The bracket assembly according to claim 7, wherein the bracket (1) further comprises an annular retaining rim (14) arranged at the first end of the first cylindrical cavity (12), the annular retaining rim (14) extending radially inwards of the first cylindrical cavity (12).

11. The bracket assembly according to claim 7, characterized in that the bracket (1) is integrally formed.

12. The bracket assembly of claim 1, wherein an axial length of the housing cavity is less than an axial length of the cylindrical cell such that the second end of the cylindrical cell extends beyond the housing cavity.

13. A battery module, characterized in that it comprises a plurality of cylindrical cells (4) and a support assembly according to any one of claims 1 to 12.

14. A battery comprising a housing and the battery module of claim 13, wherein the battery module is disposed in the housing and the bracket assembly is coupled to the housing.

15. An electrical device comprising a battery according to claim 14 for providing electrical energy.

Images