Sodium-ion battery structure and battery pack

Abstract

This utility model belongs to the field of electrical component technology, specifically relating to a sodium-ion battery structure and battery pack. The sodium-ion battery structure includes a battery pack comprising a plurality of batteries arranged in an array, each battery being surrounded by a support sleeve. An upper limit cover is provided above the battery pack, and a lower limit cover is provided below the battery pack. Thermally conductive adhesive is filled between the support sleeves. Both the upper and lower limit covers have a plurality of first limiting grooves. When replacing the battery, the battery is removed from the support sleeve by removing the upper limit cover. This sodium-ion battery structure and battery pack, by using support sleeves, ensures that the thermally conductive adhesive adheres to each support sleeve, avoiding direct contact and adhesion between the battery and the thermally conductive adhesive. That is, when replacing the battery, only the upper limit cover needs to be removed first, and then the battery can be removed from the support sleeve to complete the replacement, eliminating the need to melt the thermally conductive adhesive, greatly improving the convenience of operation.

Description

Technical Field

[0001] This utility model belongs to the field of electrical component technology, specifically relating to a method or device for directly converting chemical energy into electrical energy, and particularly to a sodium-ion battery structure and battery pack. Background Technology

[0002] A battery consists of at least a casing and an internal battery pack. The battery pack is filled with thermally conductive adhesive, which adheres to each battery cell to aid in heat dissipation.

[0003] However, when one of the batteries needs to be replaced, the presence of thermal adhesive causes the batteries to stick together and become difficult to peel off.

[0004] Therefore, how to solve the technical problem of battery replacement difficulties in battery packs using thermally conductive adhesive is a problem that urgently needs to be solved by those skilled in the art.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one sodium-ion battery structure and battery pack.

[0007] In a first aspect, embodiments of this disclosure provide a sodium-ion battery structure, comprising: a housing containing a battery pack, the battery pack comprising: a plurality of batteries arranged in an array, each battery being surrounded by a support sleeve; wherein an upper limit cover is provided above the battery pack, and a lower limit cover is provided below the battery pack, and thermally conductive adhesive is filled between the support sleeves; a plurality of first limiting grooves are provided on both the upper and lower limit covers; the upper end of the battery is located in the first limiting groove of the upper limit cover, and the lower end of the battery is located in the first limiting groove of the lower limit cover; when replacing the battery, the battery is removed from the support sleeve by removing the upper limit cover.

[0008] In one optional embodiment, a second limiting groove is provided around the first limiting groove of the lower limiting cover; wherein, the lower end of the support sleeve is located in the second limiting groove, and the upper limiting cover is adapted to press against the upper end face of the support sleeve.

[0009] In one optional embodiment, both the upper limit cover and the lower limit cover include: a plurality of limiting blocks; wherein the first limiting groove is formed on the limiting block; and the second limiting groove is formed on the limiting block of the lower limit cover.

[0010] In one optional embodiment, a buckle is provided on a pair of sidewalls of the limiting block; a slot is provided on a pair of sidewalls of the limiting block; wherein, adjacent limiting blocks are adapted to be spliced ​​by the buckle and the slot.

[0011] In one optional embodiment, a buckle is provided on the adjacent side wall of the limiting block; a slot is provided on the adjacent side wall of the limiting block.

[0012] In one optional embodiment, the limiting block has a cross-shaped notch that communicates with the first limiting groove; wherein the first limiting groove and the cross-shaped notch are disposed opposite to each other on the two end faces of the limiting block.

[0013] In one alternative implementation, after the plurality of the limiting blocks are spliced ​​together, the cross-shaped notches are connected to form a welding position.

[0014] Secondly, this disclosure also provides a battery pack, comprising: a plurality of batteries arranged in an array, each battery being fitted with a support sleeve; an upper limit cover disposed above the battery pack; a lower limit cover disposed below the battery pack; both the upper limit cover and the lower limit cover having a plurality of first limiting grooves; the lower limit cover having a second limiting groove surrounding the first limiting groove; wherein the upper end of the battery is located within the first limiting groove of the upper limit cover, the lower end of the battery is located within the first limiting groove of the lower limit cover, and the lower end of the support sleeve is located within the second limiting groove.

[0015] In one optional embodiment, the gaps between the support sleeves are filled with thermally conductive adhesive, and the height of the thermally conductive adhesive is flush with the upper end face of the support sleeve.

[0016] In one optional embodiment, both the upper limit cover and the lower limit cover include: a plurality of limit blocks; a first limit groove is formed on the limit block; a second limit groove is formed on the limit block of the lower limit cover; a cross-shaped notch is formed on the limit block, the cross-shaped notch and the first limit groove are disposed opposite to each other on the two end faces of the limit block, and the cross-shaped notch is connected to the first limit groove; wherein, after the plurality of limit blocks are spliced ​​together, the cross-shaped notches are connected to form a welding position.

[0017] The beneficial effect of this utility model is that the sodium-ion battery structure and battery pack are designed with support sleeves, which allow the thermally conductive adhesive to adhere to each support sleeve, thus avoiding direct contact and adhesion between the battery and the thermally conductive adhesive. In other words, when it is necessary to replace the battery, simply remove the upper limit cover and then take the battery out of the support sleeve to complete the replacement. There is no need to melt the thermally conductive adhesive, which greatly improves the convenience of operation.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a box provided in an embodiment of the present disclosure;

[0022] Figure 2 This is a schematic diagram of the internal structure of a box provided in an embodiment of the present disclosure;

[0023] Figure 3 This is a schematic diagram of the structure of a battery pack provided in an embodiment of the present disclosure;

[0024] Figure 4 This is a schematic diagram of the structure of an upper limit cover and a lower limit cover provided in an embodiment of the present disclosure;

[0025] Figure 5 A schematic diagram of a battery structure with a limiting block provided in an embodiment of this disclosure;

[0026] Figure 6 This is a schematic diagram of the structure of a limiting block provided in an embodiment of the present disclosure;

[0027] Figure 7 This is a schematic diagram of a welding position provided in an embodiment of the present disclosure.

[0028] In the picture:

[0029] Box 1;

[0030] Battery pack 2, battery 21, support sleeve 22;

[0031] Upper limit cover 3, first limit groove 31, limit block 32, buckle 321, groove 322, cross-shaped notch 323, welding position 324, guide strip 325;

[0032] Lower limit cover 4, second limit groove 41;

[0033] Thermal conductive adhesive 5. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the figures, the thickness of parts may be exaggerated or reduced for the purpose of effectively depicting the technical content.

[0036] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] like Figures 1 to 4 As shown, at least one embodiment provides a sodium-ion battery structure, including: a housing 1, in which a battery pack 2 is disposed; the battery pack 2 includes: a plurality of batteries 21 arranged in an array, each battery 21 being surrounded by a support sleeve 22; wherein an upper limit cover 3 is disposed above the battery pack 2, and a lower limit cover 4 is disposed below the battery pack 2, and thermally conductive adhesive 5 is filled between each support sleeve 22; a plurality of first limiting grooves 31 are provided on both the upper limit cover 3 and the lower limit cover 4; the upper end of the battery 21 is located in the first limiting groove 31 of the upper limit cover 3, and the lower end of the battery 21 is located in the first limiting groove 31 of the lower limit cover 4; when replacing the battery 21, the battery 21 is removed from the support sleeve 22 by removing the upper limit cover 3.

[0038] In this embodiment, by setting support sleeves 22, the thermally conductive adhesive 5 is bonded to each support sleeve 22, avoiding direct contact and adhesion between the battery 21 and the thermally conductive adhesive 5. That is, when the battery 21 needs to be replaced, it is only necessary to remove the upper limit cover 3 first, and then remove the battery 21 from the support sleeve 22 to complete the replacement. There is no need to melt the thermally conductive adhesive 5, which greatly improves the convenience of operation.

[0039] like Figure 5 , Figure 6 As shown, in some embodiments, both the upper limit cover 3 and the lower limit cover 4 include: a plurality of limit blocks 32; wherein the first limit groove 31 is formed on the limit block 32.

[0040] In this embodiment, both the upper limit cover 3 and the lower limit cover 4 are assembled from several limit blocks 32, so that when replacing the battery 21, only the corresponding limit block 32 needs to be removed, and the whole assembly does not need to be disassembled.

[0041] like Figure 5 , Figure 6 As shown, in some embodiments, a second limiting groove 41 is provided around the first limiting groove 31 of the lower limiting cover 4; wherein, the lower end of the support sleeve 22 is located in the second limiting groove 41, and the upper limiting cover 3 is adapted to press against the upper end surface of the support sleeve 22.

[0042] In this embodiment, the function of the second limiting groove 41 is to limit the support sleeve 22, so that the lower end of the support sleeve 22 is not prone to gaps due to slight floating when the thermally conductive adhesive 5 is filled, thereby causing the thermally conductive adhesive 5 to stick to the battery 21 inside the support sleeve 22.

[0043] like Figure 5 As shown, in some embodiments, a buckle 321 is provided on a pair of sidewalls of the limiting block 32; a slot 322 is provided on a pair of sidewalls of the limiting block 32; wherein, adjacent limiting blocks 32 are adapted to be spliced ​​with the slot 322 by the buckle 321.

[0044] In some embodiments, optionally, a buckle 321 is provided on the adjacent side wall of the limiting block 32; a slot 322 is provided on the adjacent side wall of the limiting block 32.

[0045] like Figure 6 As shown, in some embodiments, a cross-shaped notch 323 is provided on the limiting block 32, and the cross-shaped notch 323 is connected to the first limiting groove 31; wherein the first limiting groove 31 and the cross-shaped notch 323 are disposed opposite to each other on the two end faces of the limiting block 32.

[0046] like Figure 7 As shown, in some embodiments, after several limiting blocks 32 are spliced ​​together, each cross-shaped notch 323 is connected to form a welding position 324.

[0047] In this embodiment, after the limiting blocks 32 are assembled, the upper surface of the upper limit cover 3 and the lower surface of the lower limit cover 4 will form a grid-like welding position 324. At this time, the guide strip 325 can be placed in the welding position 324 and welded to the battery 21, so that the batteries are connected in series or in parallel. At the same time, after the guide strip 325 is welded, the limiting blocks 32 are restricted between the battery 21 and the guide strip 325 and will not fall apart. When disassembling, simply cut the guide strip 325 corresponding to the battery 21 to remove the limiting block 32, thereby replacing the battery 21.

[0048] At least one embodiment also provides a battery pack, including: a plurality of batteries 21 arranged in an array, each battery 21 being fitted with a support sleeve 22; an upper limit cover 3 disposed above the battery pack 2; a lower limit cover 4 disposed below the battery pack 2; both the upper limit cover 3 and the lower limit cover 4 are provided with a plurality of first limiting grooves 31; the first limiting grooves 31 of the lower limit cover 4 are surrounded by second limiting grooves 41; wherein, the upper end of the battery 21 is located in the first limiting groove 31 of the upper limit cover 3, the lower end of the battery 21 is located in the first limiting groove 31 of the lower limit cover 4, and the lower end of the support sleeve 22 is located in the second limiting groove 41.

[0049] In this embodiment, by setting support sleeves 22, the thermally conductive adhesive 5 is bonded to each support sleeve 22, avoiding direct contact and adhesion between the battery 21 and the thermally conductive adhesive 5. That is, when the battery 21 needs to be replaced, it is only necessary to remove the upper limit cover 3 first, and then remove the battery 21 from the support sleeve 22 to complete the replacement. There is no need to melt the thermally conductive adhesive 5, which greatly improves the convenience of operation.

[0050] In some embodiments, the gaps between each support sleeve 22 are filled with thermally conductive adhesive 5, and the height of the thermally conductive adhesive 5 is flush with the upper end face of the support sleeve 22.

[0051] In some embodiments, both the upper limit cover 3 and the lower limit cover 4 include: a plurality of limit blocks 32; a first limit groove 31 is formed on the limit block 32; a second limit groove 41 is formed on the limit block 32 of the lower limit cover 4; a cross-shaped notch 323 is formed on the limit block 32, the cross-shaped notch 323 and the first limit groove 31 are disposed opposite to each other on the two end faces of the limit block 32, and the cross-shaped notch 323 is connected to the first limit groove 31; wherein, after the plurality of limit blocks 32 are spliced ​​together, each cross-shaped notch 323 is connected to form a welding position 324.

[0052] In this embodiment, after the limit blocks 32 are assembled, the upper surface of the upper limit cover 3 and the lower surface of the lower limit cover 4 will form a grid-like welding position 324. At this time, the guide strip 325 can be placed in the welding position 324 and welded to the battery 21, so that the batteries are connected in series or in parallel.

[0053] In summary, the sodium-ion battery structure and battery pack, by setting up support sleeves 22, allow the thermally conductive adhesive 5 to adhere to each support sleeve 22, avoiding direct contact and adhesion between the battery 21 and the thermally conductive adhesive 5. That is, when it is necessary to replace the battery 21, simply remove the upper limit cover 3 first, and then remove the battery 21 from the support sleeve 22 to complete the replacement. There is no need to melt the thermally conductive adhesive 5, which greatly improves the convenience of operation.

[0054] In this document, when it is said that the first component is located on the second component, this can mean that the first component can be directly formed on the second component, or that the third component can be inserted between the first component and the second component.

[0055] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0056] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0057] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0058] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0059] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0061] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0062] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0063] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A sodium-ion battery structure, comprising: The housing (1), which contains a battery pack (2), is characterized in that, The battery pack (2) includes: a plurality of batteries (21) arranged in an array, each battery (21) being fitted with a support sleeve (22); wherein The battery pack (2) is provided with an upper limit cover (3) above it and a lower limit cover (4) below it. Thermal conductive adhesive (5) is filled between each of the support sleeves (22). Both the upper limit cover (3) and the lower limit cover (4) are provided with a plurality of first limit grooves (31); The upper end of the battery (21) is located in the first limiting groove (31) of the upper limit cover (3), and the lower end of the battery (21) is located in the first limiting groove (31) of the lower limit cover (4). When replacing the battery (21), the battery (21) is removed from the support sleeve (22) by removing the upper limit cover (3).

2. The sodium-ion battery structure as described in claim 1, characterized in that, The lower limit cover (4) has a second limit groove (41) around the first limit groove (31); The lower end of the support sleeve (22) is located in the second limiting groove (41), and the upper limit cover (3) is adapted to press against the upper end face of the support sleeve (22).

3. The sodium-ion battery structure as described in claim 2, characterized in that, Both the upper limit cover (3) and the lower limit cover (4) include: a plurality of limit blocks (32); wherein The first limiting groove (31) is formed on the limiting block (32); The second limiting groove (41) is opened on the limiting block (32) of the lower limiting cover (4).

4. The sodium-ion battery structure as described in claim 3, characterized in that, The limiting block (32) is provided with buckles (321) on a pair of side walls respectively; The limiting block (32) has slots (322) on its pair of side walls respectively; The adjacent limiting blocks (32) are adapted to be spliced ​​with the slots (322) by means of buckles (321).

5. The sodium-ion battery structure as described in claim 4, characterized in that, The adjacent sidewall of the limiting block (32) is provided with a buckle (321). The limiting block (32) has a slot (322) on its adjacent side wall.

6. The sodium-ion battery structure as described in claim 5, characterized in that, The limiting block (32) has a cross-shaped notch (323) which communicates with the first limiting groove (31); wherein The first limiting groove (31) and the cross-shaped notch (323) are disposed opposite to each other on the two end faces of the limiting block (32).

7. The sodium-ion battery structure as described in claim 6, characterized in that, After several of the limiting blocks (32) are spliced ​​together, each of the cross-shaped notches (323) is connected to form a welding position (324).

8. A battery pack, characterized in that, include: A number of batteries (21) arranged in an array, each of which is fitted with a support sleeve (22). The upper limit cover (3) is positioned above the battery pack (2); The lower limit cover (4) is located below the battery pack (2); Both the upper limit cover (3) and the lower limit cover (4) are provided with a plurality of first limit grooves (31); The lower limit cover (4) has a second limit groove (41) around the first limit groove (31); The upper end of the battery (21) is located in the first limiting groove (31) of the upper limit cover (3), the lower end of the battery (21) is located in the first limiting groove (31) of the lower limit cover (4), and the lower end of the support sleeve (22) is located in the second limiting groove (41).

9. The battery pack as described in claim 8, characterized in that, The gaps between each of the support sleeves (22) are filled with thermally conductive adhesive (5), and the height of the thermally conductive adhesive (5) is flush with the upper surface of the support sleeve (22).

10. The battery pack as claimed in claim 9, characterized in that, Both the upper limit cover (3) and the lower limit cover (4) include: a plurality of limit blocks (32); The first limiting groove (31) is formed on the limiting block (32); The second limiting groove (41) is formed on the limiting block (32) of the lower limiting cover (4); The limiting block (32) has a cross-shaped notch (323), the cross-shaped notch (323) and the first limiting groove (31) are disposed opposite to each other on the two end faces of the limiting block (32), and the cross-shaped notch (323) is connected to the first limiting groove (31); Among them, after several of the limiting blocks (32) are spliced ​​together, each of the cross-shaped notches (323) is connected to form a welding position (324).

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