CN220306336U - Battery cell support and battery - Google Patents

Abstract

The utility model relates to a electric core support and battery belongs to battery technology field, and electric core support includes the support body, and the support body includes along the relative first face of first direction and second face, is equipped with a plurality of electric core holding grooves on the support body, and electric core holding groove runs through the support body along first direction, and electric core holding groove is used for fixing a position electric core, is equipped with a plurality of supporting parts on the first face, and every electric core holding groove corresponds at least one supporting part, and the supporting part includes first sub-portion, and the partial side of electric core is surrounded to the first sub-portion of at least one supporting part. According to the battery cell support, when the battery cell support positions the battery cell, the end face of the battery cell and part of the side face of the battery cell can be exposed, so that when the battery cell support is applied to a battery, the end face of the battery cell and part of the side face of the battery cell can exchange heat with the shell through the heat dissipation glue, the heat conduction area of the battery cell is increased, and the heat transfer efficiency of the battery cell and the shell is improved.

Description

Battery cell support and battery

Technical Field

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

Background

The prior art has certain defects in the aspect of battery heat dissipation, and the battery cells are usually fixed into a module through a bracket and assembled in an aluminum cylinder, so that a battery pack is formed. The common support structure has the advantages that the support wraps the battery cell, so that a certain blocking effect is generated on heat transfer between the battery cell and the aluminum barrel wall, heat exchange between the battery cell and the aluminum barrel wall is not facilitated, and under certain charging and discharging conditions, heat of the battery cell is difficult to transfer to the outside, so that the service performance of the battery cell is affected; specifically, under certain working conditions, the heat transfer efficiency between the battery cell and the aluminum barrel wall is low, and the heat dissipation is slow, so that the temperature of the battery cell rises too fast, the performance of the battery cell is reduced, and the service life of the battery cell is shortened.

In the related art, a patent document with a patent number of CN217788658U discloses a battery cell support and a power battery for a circular battery cell, the battery cell support comprises an upper support and a lower support, the upper support and the lower support are correspondingly arranged at opposite intervals, a plurality of circular battery cell accommodating grooves are respectively arranged on the inner end surfaces of the upper support and the lower support, the battery cell accommodating grooves of the upper support and the lower support are correspondingly arranged one by one, the upper support and the lower support are respectively provided with a plurality of connecting holes penetrating through the inner end surface and the outer end surface, and the connecting holes of the upper support and the lower support are correspondingly arranged one by one, so that the upper support and the lower support are fixedly connected through connecting pieces; the outer end surfaces of the upper support and the lower support are respectively provided with a plurality of positioning mechanisms and a plurality of fixing mechanisms, the positioning mechanisms are used for positioning the copper bars, the fixing mechanisms are used for clamping and fixing the copper bars, and all the fixing mechanisms and the positioning mechanisms on the upper support and the lower support are arranged in a one-to-one correspondence mode. The contact surfaces of the battery cells, the upper bracket and the lower bracket are more, which is not beneficial to heat dissipation.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the battery cell support, which can expose the end face and part of the side face of the battery cell, so that when the battery cell support is applied to a battery, the battery cell can have more heat conduction paths with the shell through the heat dissipation adhesive, and the battery cell can emit heat more quickly, so that the service life of the battery cell is prolonged.

In a first aspect, the application provides a battery cell support, including the support body, the support body includes along the relative first face of first direction and second face, is equipped with a plurality of battery cell holding grooves on the support body, and the battery cell holding groove runs through the support body along first direction, and the battery cell holding groove is used for fixing a position the battery cell, is equipped with a plurality of supporting parts on the first face, and every battery cell holding groove corresponds at least one supporting part, and the supporting part includes first sub-portion, and the partial side of battery cell is surrounded to the first sub-portion of at least one supporting part.

According to the battery cell support, the circumference direction of each battery cell accommodating groove is provided with the plurality of supporting parts, the plurality of first sub-parts are arranged at intervals along the circumference direction of the battery cell accommodating groove, and an opening is formed between any two adjacent first sub-parts.

According to the battery cell support, the support part further comprises a second sub-part, two ends of the first sub-part are respectively connected with the support body and the second sub-part, and the second sub-part is used for abutting against the end face of the battery cell.

Optionally, the second sub-portion is configured to abut against a portion of the end surface of the cell.

Optionally, the second sub-portions corresponding to the same cell accommodating groove extend toward a direction approaching the central axis of the cell accommodating groove.

Optionally, the first sub-portion extends along a first direction, and the extending direction of the second sub-portion is perpendicular to the first direction.

Optionally, the second sub-portions corresponding to the same cell accommodating groove are spaced from each other.

Optionally, the plurality of cell accommodating grooves are arranged in a plurality of rows in a direction taking the second direction as a row, the cell accommodating grooves in two adjacent rows are arranged in a staggered manner, and the second direction is perpendicular to the first direction.

Optionally, one cell accommodating groove corresponds to two supporting parts, and the two supporting parts are symmetrically arranged.

In a second aspect, the present application provides a battery comprising: the shell, a plurality of electric core and at least one electric core support of first aspect, the shell defines the installation cavity, and every electric core all clamps and locates in the electric core holding tank, and electric core support all are located the installation cavity, still fill in the installation cavity and have the heat dissipation glue.

Optionally, the battery comprises two cell holders, and holder bodies of the two cell holders are stacked.

Optionally, the battery comprises two cell holders, and holder bodies of the two cell holders are stacked.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

according to the battery cell support, when the battery cell support is used for positioning the battery cell, the end face of the battery cell and the part of the side face of the battery cell can be exposed, so that when the battery cell support is applied to a battery, the end face of the battery cell and the part of the side face of the battery cell can be subjected to heat exchange with the shell through heat dissipation glue, heat of the battery cell can be transferred to the shell of the battery from the side face of the battery cell and the end face of the battery cell, the heat conduction area of the battery cell is increased, and the heat transfer efficiency of the battery cell and the shell is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a perspective view of a cell holder according to an embodiment of the present utility model;

fig. 2 is a perspective view of a stack of two cell holders according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is a perspective view of a partial structure of a battery according to an embodiment of the present utility model;

fig. 5 is a top view of a partial structure of a battery according to an embodiment of the present utility model;

fig. 6 is a side view of a partial structure of a battery according to an embodiment of the present utility model;

fig. 7 is a side view of a battery according to an embodiment of the present utility model;

FIG. 8 is a cross-sectional view taken along the direction E-E in FIG. 7;

fig. 9 is an enlarged view at B in fig. 7.

Reference numerals:

the battery 100 is provided with a battery cell,

the battery cell bracket 1, the bracket body 10, the battery cell accommodating groove 11, the supporting part 12, the first sub-part 121, the second sub-part 122, the first plate surface 13, the second plate surface 14,

the battery cell 2, the casing 3, the heat dissipation is glued 4.

Detailed Description

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

The cell holder 1 according to the embodiment of the present utility model is described below with reference to the accompanying drawings.

Fig. 1 shows the second plate 14 of the cell holder 1, and fig. 5 shows the first plate 13 of the cell holder 1.

As shown in fig. 1 to 3 and fig. 5, the battery cell support 1 according to the embodiment of the utility model includes a support body 10, the support body 10 includes a first plate surface 13 and a second plate surface 14 opposite to each other along a first direction, a plurality of battery cell accommodating grooves 11 are provided on the support body 10, the battery cell accommodating grooves 11 penetrate through the support body 10 along the first direction, the battery cell accommodating grooves 11 are used for positioning the battery cells 2, a plurality of supporting portions 12 are provided on the first plate surface 13, each battery cell accommodating groove 11 corresponds to at least one supporting portion 12, the supporting portion 12 includes a first sub-portion 121, and the first sub-portion 121 of the at least one supporting portion 12 surrounds a portion of the side surface of the battery cell 2.

In the development, as shown in fig. 4, when the battery cell holder 1 is applied to the battery 100, the battery cell 2 is installed in the battery cell accommodating groove 11, since the first sub-portion 121 of the at least one supporting portion 12 surrounds a part of the side surface of the battery cell 2, the side wall of the rest of the battery cell 2 is exposed to the outside, so that the battery cell 2 can be adhered to the heat dissipation glue, and the side surface of the battery cell 2 can be simultaneously used for transferring heat with the housing, so that the heat transfer area of the battery cell 2 is large, the heat transfer is sufficient, the heat transfer coefficient is high, the heat transfer efficiency is greatly improved, and therefore, the temperature rise of the battery 100 under a specific current working condition can be effectively reduced, and the cooling rate after the temperature rise is increased.

It is understood that the cross section of the cell receiving groove 11 may be configured in a circular shape, a square shape, an oval shape, etc., so as to be able to pass through the cell 2.

According to the battery cell support 1 of the embodiment of the utility model, when the battery cell support 1 is applied to the battery 100, as the first sub-portion 121 of the at least one supporting portion 12 surrounds part of the side surface of the battery cell 2, the side wall of the rest of the battery cell 2 is exposed to the outside, so that the battery cell support can be contacted with a heat dissipation adhesive, and heat of the battery cell 2 can be transferred from the side wall surface of the battery cell 2 and the end surface of the battery cell 2 to the shell of the battery 100, so that the heat conduction area of the battery cell 2 is increased, and the heat transfer efficiency of the battery cell 2 and the shell is improved.

In some embodiments, one cell receiving groove 11 corresponds to at least two supporting portions 12.

As shown in fig. 2 to fig. 4, according to the cell support 1 of the embodiment of the present utility model, the perimeter direction of each cell accommodating groove 11 is provided with a plurality of supporting portions, a plurality of first sub-portions 121 are disposed at intervals along the perimeter direction of the cell accommodating groove 11, an opening is formed between any two adjacent first sub-portions 121, and a side wall of the cell 2 opposite to the opening can be exposed, so that when the cell support 1 is applied to a battery, the side wall of the cell 2 opposite to the opening can exchange heat with a housing through heat-dissipating glue, thereby improving the heat transfer efficiency of the cell 2 and the housing, wherein the side wall of the cell 2 in the perimeter direction can be exposed by forming the opening between any two adjacent first sub-portions 121, and in this way, the cell 2 can dissipate heat uniformly.

The first sub-portions 121 of each supporting portion 12 are distributed at intervals along the circumferential direction of the cell accommodating groove 11, so that the side wall of the cell 2 can be exposed more as much as possible, and the contact area between the side wall of the cell 2 and the heat dissipation adhesive is further increased.

The supporting portion 12 further includes a second sub-portion 122, two ends of the first sub-portion 121 are respectively connected to the bracket body 10 and the second sub-portion 122, and the second sub-portion 122 is used for abutting against an end face of the battery cell 2. When the battery cell 2 is inserted into the battery cell accommodating groove 11, the second sub-portion 122 limits the end face abutment of the battery cell 2, so as to prevent the battery cell 2 from falling out of the battery cell bracket 1.

In some embodiments, the second sub-portion 122 is configured to abut against a portion of the end face of the cell 2. Like this, can make the other part of terminal surface of electric core 2 show to when electric core support 1 was applied to in the battery, partial lateral wall and the partial terminal surface of electric core 2 can carry out heat exchange through heat dissipation glue and casing, promotes heat transfer efficiency.

In some embodiments, the second sub-portions 122 corresponding to the same cell housing groove 11 each extend toward a direction approaching the central axis of the cell housing groove 11.

In some embodiments, the first sub-portion 121 extends along a first direction, the extending direction of the second sub-portion 122 is perpendicular to the first direction, the second sub-portions 122 corresponding to the same cell 11 each extend toward a direction close to the central axis of the cell 11, and the first sub-portions 121 of the respective support portions 12 are spaced apart along the circumferential direction of the cell 11.

The battery cell 2 is in a regular three-dimensional shape, and the "central axis" direction refers to a straight line extending along the length direction of the battery cell 2, and the straight line passes through the midpoint of any cross section of the battery cell 2 along the direction perpendicular to the length direction. The battery cell 2 may be rectangular parallelepiped, square, cylindrical, elliptic cylindrical, or the like, and the present application is not limited thereto.

The second sub-portions 122 corresponding to the supporting portions 12 may be spaced apart from each other or connected, for example, in some embodiments, one cell accommodating groove 11 corresponds to two supporting portions 12, the second sub-portions 122 corresponding to the two supporting portions 12 are connected to each other, or the second sub-portions 122 corresponding to the two supporting portions 12 are spaced apart from each other.

As shown in fig. 4 and fig. 5, in some embodiments, the second sub-portions 122 corresponding to the same cell accommodating groove 11 are spaced from each other, so that the end surfaces of the cells 2 can be exposed as uniformly as possible while limiting the cells 2, and uneven heat dissipation is prevented.

In some embodiments, the electric core 2 is cylindrical, the first sub-portion 121 is in an arc structure along the circumferential direction of the electric core 2, and the first sub-portion 121 can be attached to the side wall of the electric core 2 through such arrangement, so that the electric core 2 is more stable in the electric core accommodating groove 11, rotation is prevented, and meanwhile, space occupation can be saved while structural strength is met.

As shown in fig. 4 to fig. 6, in some embodiments, the plurality of cell accommodating grooves 11 are arranged in a plurality of rows in a direction of a second direction, and the cell accommodating grooves 11 in two adjacent rows are arranged in a staggered manner, and the second direction is perpendicular to the first direction, so that space occupation can be saved, and more cells 2 can be fixed by the cell support 1.

It should be noted that the cell accommodating grooves 11 of two adjacent rows are arranged in a staggered manner, which means that the symmetrical center lines of the cell accommodating grooves 11 of two adjacent rows extending along the third direction are not collinear, wherein the third direction, the second direction and the first direction are perpendicular to each other.

For example, the plurality of cell accommodating grooves 11 are arranged in a plurality of rows in the direction in which the second square is a row, the cell accommodating grooves 11 in the nth row, the n+2th row, the n+4 th row, the n+2a th row (N is a positive integer equal to or greater than 1, a is an integer equal to or greater than 0), and the like are arranged in a plurality of columns in the direction in which the third direction is a column, the symmetry center lines of the plurality of cell accommodating grooves 11 in the same column in the nth row, the n+2th row, the n+4 th row, the n+2a th row (N is a positive integer equal to or greater than 1, a is an integer equal to or greater than 0) are all collinear, and the symmetry center plane of each support portion 12 corresponding to one cell accommodating groove 11 passes through the axis of the cell accommodating groove 11 in the first direction.

In a specific embodiment, one cell accommodating groove 11 corresponds to two supporting parts 12, and the two supporting parts 12 are symmetrically arranged. Further, the two supporting portions 12 corresponding to the cell accommodating groove 11 are symmetrically arranged in the second direction, so that the influence of the supporting portions 12 on the distance between two adjacent rows of cell accommodating grooves 11 is avoided, and the space utilization rate is improved.

In some embodiments, the length of the first sub-portion 121 in the first direction is greater than the thickness of the stent body 10 in the first direction. By the arrangement, the side wall of the battery cell 2 can be exposed more as much as possible, and the contact area between the side wall of the battery cell 2 and the heat dissipation adhesive is further increased.

In some embodiments, the thickness of the second sub-portion 122 is 3-5 cm. The thickness of the second sub-portion 122 needs to be reasonably set, so that the volume can be reduced while the structural strength is ensured, and space occupation is prevented, for example, the thickness of the second sub-portion 122 can be 3cm, 3.2cm, 3.4cm, 3.6cm, 3.8cm, 4.0cm, 4.2cm, 4.4cm, 4.6cm, 4.8cm, 5.0cm, and the like.

According to the cell holder 1 of the embodiment of the present utility model, the sum of the depth of the cell accommodating groove 11 in the first direction and the depth of the cell 2 accommodating position in the first direction is less than or equal to half the length of the cell 2. As shown in fig. 7 to 9, in the battery 100, two cell holders 1 may be provided, and the holder bodies 10 of the two cell holders 1 may be stacked so that both end portions of the cell 2 may abut against the second sub-portion 122.

For example, in some embodiments, in the first direction, the sum of the depth of the cell receiving groove 11 and the depth of the cell 2 receiving bit is equal to half the length of the cell 2; for example, in the first direction, the sum of the depth of the cell accommodating groove 11 and the depth of the accommodating position of the cell 2 is smaller than half the length of the cell 2, so that when the cell 2 is mounted in the two cell holders 1, the holder bodies 10 corresponding to the two cell holders 1 are spaced apart, and the two end portions of the cell 2 are respectively abutted against the second sub-portions 122 corresponding to the two cell holders 1.

That is, in order to ensure that both end portions of the battery cell 2 can be abutted against the second sub-portion 122, the sum of the depth L1 of the battery cell accommodating groove 11 and the depth L2 of the battery cell 2 accommodating position is less than 0.5D which is half the length of the battery cell 2, and L1, L2 and 0.5D satisfy: d = 0.5D-L1-L2, D being equal to or greater than 0, in some embodiments D is 0-5 mm, e.g., 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, and 5mm.

As shown in fig. 7 to 9, the battery 100 according to the present utility model includes: the battery cell and the battery cell support 1 are located in the installation cavity, and heat dissipation glue is filled in the installation cavity.

That is, in some embodiments, the battery 100 may include one cell holder 1, and in some embodiments, as shown in fig. 7-9, the battery 100 includes two cell holders 1.

According to the battery 100 of the embodiment of the utility model, as the first sub-portion 121 of the at least one supporting portion 12 surrounds part of the side surface of the battery cell 2, the end surface of the battery cell 2 and the side wall of the rest of the battery cell are exposed to the outside, so that the battery cell can be contacted with the heat dissipation glue, the heat of the battery cell 2 can be transferred from the side wall surface of the battery cell 2 and the end surface of the battery cell 2 to the shell of the battery 100, the heat conduction area of the battery cell 2 is increased, and the heat transfer efficiency of the battery cell 2 and the shell is improved.

As shown in fig. 8 and 9, in some embodiments, the battery 100 includes two cell holders 1, and holder bodies 10 of the two cell holders 1 are stacked. Therefore, the battery cell support 1 and the battery cell 2 are more stable, the two battery cell supports 1 can limit each other, and the battery 100 is prevented from shaking under different working conditions in the use process.

When the battery 100 is assembled, one end of the battery cell 2 is firstly arranged in one battery cell bracket 1, then the other end of the battery cell 2 is arranged in the other battery cell bracket 1, after the battery cell 2 and the battery cell bracket 1 form a module, the battery cell and the battery cell bracket 1 are combined with other parts to be jointly arranged in a shell, and the shell is filled with heat-dissipating glue for encapsulation.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial", "circumferential direction", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

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

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims (11)

1. The utility model provides a battery cell support, its characterized in that, includes the support body, the support body includes along the relative first face of first direction and second face, be equipped with a plurality of battery cell holding grooves on the support body, the battery cell holding groove is followed the first direction runs through the support body, the battery cell holding groove is used for fixing a position the battery cell, be equipped with a plurality of supporting parts on the first face, every the battery cell holding groove corresponds at least one supporting part, supporting part includes first sub-portion, at least one the first sub-portion of supporting part is encircled the partial side of battery cell.

2. The battery cell support according to claim 1, wherein a plurality of supporting portions are provided in the circumferential direction of each battery cell accommodating groove, a plurality of the first sub-portions are provided at intervals in the circumferential direction of the battery cell accommodating groove, and an opening is formed between any two adjacent first sub-portions.

3. The cell holder according to claim 1, wherein the support portion further comprises a second sub-portion, two ends of the first sub-portion are respectively connected to the holder body and the second sub-portion, and the second sub-portion is configured to abut against an end surface of the cell.

4. A cell holder according to claim 3, wherein the second sub-portion is adapted to abut against a part of the end face of the cell.

5. The cell holder according to claim 4, wherein the second sub-portions corresponding to the same cell housing groove each extend toward a direction approaching a central axis of the cell housing groove.

6. The cell support of claim 4, wherein the first sub-portion extends in the first direction and the second sub-portion extends in a direction perpendicular to the first direction.

7. The cell holder of claim 4, wherein the second sub-portions corresponding to the same cell receiving slot are each spaced apart from one another.

8. The cell support according to any one of claims 1 to 7, wherein a plurality of the cell receiving grooves are arranged in a plurality of rows in a direction in which a second direction is perpendicular to the first direction, and the cell receiving grooves of two adjacent rows are arranged in a staggered manner.

9. The cell holder according to claim 8, wherein one of the cell accommodating grooves corresponds to two of the supporting portions, the two supporting portions being symmetrically arranged; the two supporting parts corresponding to the battery cell accommodating groove are symmetrically arranged in the second direction.

10. A battery, comprising: the battery cell support of any one of claims 1-9, a plurality of battery cells and at least one battery cell support, wherein the housing defines a mounting cavity, each battery cell is clamped in the battery cell accommodating groove, the battery cell and the battery cell support are both positioned in the mounting cavity, and heat dissipation glue is filled in the mounting cavity.

11. The battery of claim 10, wherein the battery comprises two of the cell holders, and wherein holder bodies of the two cell holders are stacked.