Battery cell support assembly, battery, and electrical device

Abstract

Embodiments of the present disclosure provide a battery cell support assembly, a battery and an electrical device, and relate to the technical field of battery safety. Specifically, the battery cell support assembly comprises a top cover piece, a lower plastic, and a support. In detail, an open end of the lower plastic having a U-shaped structure directly faces and moves relative to an open end of the support, which also has U-shaped structure, such that a connecting part disposed on the lower plastic fits with a matching part disposed on the support. The support is accommodated in a first accommodating cavity formed by the lower plastic having the U-shaped structure, thus realizing fixation of the lower plastic and the support. Based on the described configuration, the battery cell support assembly provided by the present disclosure implements assembly of the lower plastic and the top cover piece by means of only one support, thereby achieving the technical effect of reducing a number of supports so as to reduce costs, and also simplifies a support assembly action, achieving the technical effects of reducing device assembly complexity, and saving time and labor in the assembly process.

Description

Battery support assembly, battery and electrical equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202323183945.5, filed with the Patent Office of China on November 24, 2023, entitled “A Battery Cell Bracket Assembly and Battery,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the field of battery safety technology, and in particular to a battery cell bracket assembly, a battery, and an electrical device. Background Art

[0004] The bracket structure of the relevant products is a paired structure. The two brackets need to be locked into place with each other and then inserted into the corresponding snap-in positions of the plastic under the top cover.

[0005] Therefore, on the one hand, the related products have a large number of brackets and high costs; on the other hand, when assembling the brackets and the plastic under the top cover of the related products, two or more positioning actions are required, and the assembly steps are numerous and complicated, which is time-consuming and labor-intensive.

[0006] Utility Model Content

[0007] The embodiments of the present disclosure provide a battery cell bracket assembly, a battery, and an electrical device, which can reduce the number of brackets and achieve the technical effect of reducing costs. It can also simplify the bracket assembly action and reduce the complexity of equipment assembly, thereby achieving the technical effect of saving time and effort in the assembly process.

[0008] The embodiments of the present disclosure are implemented as follows:

[0009] In a first aspect, an embodiment of the present disclosure provides a battery cell bracket assembly, which includes a top cover sheet, a lower plastic and a bracket; the lower plastic is U-shaped and has a first accommodating cavity, the lower plastic is connected to the top cover sheet and the lower plastic is provided with a connecting portion; the bracket is U-shaped and has a second accommodating cavity, the bracket is provided with a mating portion that cooperates with the connecting portion; when the connecting portion cooperates with the mating portion, the bracket is accommodated in the first accommodating cavity.

[0010] In an optional embodiment, the connecting portion is configured as a protrusion, and the matching portion is configured as a groove that matches the protrusion.

[0011] In an optional embodiment, the connecting portion is configured as a groove, and the matching portion is configured as a protrusion that matches the groove.

[0012] In an optional embodiment, the protrusion includes a first inclined surface, a second inclined surface, and a connecting surface connected between the first inclined surface and the second inclined surface.

[0013] In an optional embodiment, the first inclined surface and the second inclined surface are symmetrically arranged, the first inclined surface is inclined toward one side of the second inclined surface, and the second inclined surface is inclined toward one side of the first inclined surface.

[0014] In an optional embodiment, the specific range of the included angle between the first inclined surface and the second inclined surface is 5° to 60°.

[0015] In an optional embodiment, the connecting portion extends from the lower plastic opening end to a wall surface opposite to the lower plastic opening end.

[0016] In an optional embodiment, the battery cell bracket assembly also includes a limiting structure configured as a guide tab, the limiting structure is connected to the bracket, and the limiting structure is located in the second accommodating cavity. When the connecting portion is engaged with the mating portion, there is a gap between the limiting structure and the lower plastic.

[0017] In an optional embodiment, the limiting structure is connected to the wall surface opposite to the open end of the bracket.

[0018] In an optional embodiment, the thickness of the limiting structure decreases gradually in a direction toward the open end of the bracket.

[0019] In an optional embodiment, the lower plastic includes a first wall panel, a second wall panel and a third wall panel connected in sequence, the first wall panel, the second wall panel and the third wall panel together surround and form the first accommodating cavity, and the connecting part is arranged on the first wall panel and the third wall panel.

[0020] In an optional embodiment, the first wall panel and the third wall panel are symmetrically arranged and have the same structure, and the length of the second wall panel is greater than that of the first wall panel or the third wall panel.

[0021] In an optional embodiment, the bracket includes a first plate, a second plate and a third plate connected in sequence, the first plate, the second plate and the third plate together surround and form the second accommodating cavity, and the mating part is arranged on the first plate and the third plate.

[0022] In a second aspect, an embodiment of the present disclosure provides a battery, comprising the cell holder assembly described in any one of the aforementioned embodiments.

[0023] In a third aspect, an embodiment of the present disclosure provides an electrical device, which includes the battery cell holder assembly described in any one of the aforementioned embodiments, or the battery described in the aforementioned embodiments.

[0024] The beneficial effects of the embodiments of the present disclosure include:

[0025] The embodiments of the present disclosure provide a battery cell holder assembly, a battery and an electrical device, wherein the battery cell holder assembly includes a top cover sheet, a lower plastic and a bracket. In detail, the open end of the lower plastic of the U-shaped structure is opposite to the open end of the bracket which is also a U-shaped structure and moves relative to each other, so that the connecting portion provided by the lower plastic cooperates with the matching portion provided by the bracket, and the bracket is accommodated in the first accommodation cavity formed by the lower plastic of the U-shaped structure, thereby achieving the fixation of the lower plastic and the bracket. Based on the above arrangement, the battery cell holder assembly provided by the present disclosure is assembled with the lower plastic and the top cover sheet by only one bracket, thereby achieving the technical effect of reducing the number of brackets to reduce costs, while also simplifying the bracket assembly action, achieving the technical effect of reducing the complexity of equipment assembly and saving time and effort during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0027] FIG1 is a schematic structural diagram of a cell support assembly provided by an embodiment of the present disclosure;

[0028] FIG2 is a schematic diagram of a support structure provided by an embodiment of the present disclosure;

[0029] FIG3 is a schematic diagram of the lower plastic structure provided by an embodiment of the present disclosure;

[0030] FIG4 is a schematic cross-sectional view of the battery cell support assembly accommodating a tab according to an embodiment of the present disclosure;

[0031] FIG5 is a schematic cross-sectional view of a cell support assembly according to an embodiment of the present disclosure;

[0032] FIG6 is an enlarged schematic diagram of the structure at point A in FIG5 provided by an embodiment of the present disclosure.

[0033] Icons: 10-battery cell bracket assembly; 30-ear; 100-top cover; 300-lower plastic; 310-first accommodating cavity; 311-first wall panel; 313-second wall panel; 315-third wall panel; 330-connecting portion; 331-protrusion; 333-first inclined surface; 335-second inclined surface; 337-connecting surface; 500-bracket; 510-second accommodating cavity; 511-first plate; 513-second plate; 515-third plate; 530-matching portion; 531-groove; 700-limiting structure. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, but not all of them. Generally, the components of the embodiments of the present disclosure described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the present disclosure as claimed, but merely represents selected embodiments of the present disclosure. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present disclosure without creative effort shall fall within the scope of protection of the present disclosure.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the description of the present disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, or the positions or location relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of the present disclosure and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. Furthermore, the terms "first," "second," "third," and the like are merely configured to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0039] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0040] As mentioned in the background technology, on the one hand, the related products have a large number of brackets and high costs; on the other hand, when assembling the brackets and the plastic under the top cover of the related products, two or more positioning actions are required, and the assembly steps are numerous and complicated, which is time-consuming and labor-intensive.

[0041] In order to improve the above problems, the embodiments of the present disclosure provide a cell bracket assembly and a battery, which can reduce the number of brackets and achieve the technical effect of reducing costs. It can also simplify the bracket assembly action and reduce the complexity of equipment assembly, thereby achieving the technical effect of saving time and labor in the assembly process.

[0042] Figure 1 is a schematic diagram of the structure of a cell support assembly 10 according to an embodiment of the present disclosure, Figure 2 is a schematic diagram of the structure of a support 500 according to an embodiment of the present disclosure, and Figure 3 is a schematic diagram of the structure of a lower plastic 300 according to an embodiment of the present disclosure. Please refer to Figures 1 to 3. The present disclosure provides an electrical device that utilizes a cell support assembly 10 or a battery including the cell support assembly 10. Specifically, the cell support assembly 10 includes a top cover sheet 100, a lower plastic 300, and a support 500.

[0043] Among them, the lower plastic 300 has a U-shaped structure and has a first accommodating cavity 310. The lower plastic 300 is connected to the top cover sheet 100 and is provided with a connecting portion 330. The bracket 500 has a U-shaped structure and has a second accommodating cavity 510. The bracket 500 is provided with a matching portion 530 that matches with the connecting portion 330. When the connecting portion 330 is matched with the matching portion 530, the bracket 500 is accommodated in the first accommodating cavity 310.

[0044] It should be noted that, as shown in Figure 1, the lower plastic 300 is specifically an insulating member installed below the battery top cover 100. It should also be noted that the bracket 500 cooperates with the lower plastic 300 in the direction indicated by the arrow in Figure 1. Specifically, the open end of the U-shaped lower plastic 300 is aligned with the open end of the bracket 500, which also has a U-shaped structure, and they move relative to each other, so that the connecting portion 330 provided on the lower plastic 300 cooperates with the mating portion 530 provided on the bracket 500, and the bracket 500 is accommodated in the first accommodating cavity 310 formed by the U-shaped lower plastic 300, thereby achieving the fixation of the lower plastic 300 and the bracket 500.

[0045] It is understandable that, based on the above-mentioned arrangement, the battery cell bracket assembly 10 provided in the embodiment of the present disclosure is assembled with the lower plastic 300 and the top cover sheet 100 by only one bracket 500, thereby achieving the technical effect of reducing the number of brackets 500 to reduce costs, while also simplifying the assembly action of the bracket 500, achieving the technical effect of reducing the complexity of equipment assembly and saving time and effort during the assembly process. In addition, it should be noted that the "when the connecting portion 330 is mated with the mating portion 530" in the above description specifically refers to "when the connecting portion 330 is mated with the mating portion 530", rather than a single moment.

[0046] Please refer to Figure 2 again. The battery cell support assembly 10 also includes a limiting structure 700 configured to guide the tab 30. The limiting structure 700 is connected to the support 500 and is located in the second accommodating cavity 510. When the connecting portion 330 and the mating portion 530 are mated, there is a gap between the limiting structure 700 and the lower plastic 300.

[0047] It should be noted that, referring to Figure 4, when the connecting portion 330 is matched with the matching portion 530, the limiting structure 700, the bracket 500, the lower plastic 300 and the top cover sheet 100 form an accommodating space, so that the tab 30 set on the bare battery cell can pass through the gap between the limiting structure 700 and the lower plastic 300, and be guided by the limiting structure 700 and converged into the accommodating space. In other words, the above-mentioned setting provides an accommodating and converging accommodating space for the tab 30, thereby avoiding the situation where the tab 30 cannot be folded. Optionally, one side of the bracket 500 is connected to the lower plastic 300, and the other side is connected to the limiting structure 700 to ensure that the formed accommodating space is sufficient.

[0048] To further guide the tab 30, the limiting structure 700 is connected to the wall opposite the open end of the bracket 500, and the thickness of the limiting structure 700 decreases toward the open end of the bracket 500. Through the above arrangement, the limiting structure 700 has a certain slope, which facilitates the guidance of the tab 30 and further achieves the convergence of the tab 30.

[0049] It should be noted that the gap between the retaining structure 700 and the lower plastic 300 is actually the gap between the wall opposite the open end of the lower plastic 300 and the retaining structure 700. Therefore, the specific dimensions of the retaining structure 700 can be set to ensure that there is a gap between the two and that the tab 30 is not pulled when passing through the gap. Alternatively, the gap can be appropriately set by setting the length of the connecting portion 330 extending from the open end of the lower plastic 300 toward the wall opposite the open end of the lower plastic 300.

[0050] Optionally, referring to Figure 3 , to strengthen the mounting of the bracket 500 and the lower plastic 300, the connecting portion 330 extends from the open end of the lower plastic 300 to a wall surface opposite the open end of the lower plastic 300. As will be appreciated, since the mating portion 530 and the connecting portion 330 are shaped and structured to match, extending the connecting portion 330 increases the contact area with the mating portion 530, thereby enhancing the stability of the bracket 500 after mating with the lower plastic 300.

[0051] Please refer again to Figures 2 and 3. To strengthen the connection between the bracket 500 and the lower plastic 300, the connecting portion 330 is configured as a protrusion 331, and the mating portion 530 is configured as a groove 531 that mates with the protrusion 331. Furthermore, it should be noted that in other embodiments, the connecting portion 330 can be configured as a groove and the mating portion 530 as a protrusion. In other words, the mating portion 530 can be configured to fit into the connecting portion 330, or the connecting portion 330 can be configured to fit into the mating portion 530, as long as the mating relationship between the two is ensured.

[0052] Please refer to Figures 5 and 6, where Figure 5 is a schematic cross-sectional view of the battery cell support assembly 10 according to this embodiment, and Figure 6 is an enlarged schematic view of the structure at point A in Figure 5. To prevent excessive tab 30 layers from affecting the connection between the support 500 and the lower plastic 300 during expansion, the protrusion 331 includes a first inclined surface 333, a second inclined surface 335, and a connecting surface 337 connecting the first inclined surface 333 and the second inclined surface 335.

[0053] The above arrangement allows for an angled contact between the protrusion 331 and the groove 531 when engaged, thereby resolving the expansion problem caused by excessive layers of the tab 30. Optionally, the first inclined surface 333 and the second inclined surface 335 are symmetrically arranged, with the first inclined surface 333 inclined toward the second inclined surface 335, and the second inclined surface 335 inclined toward the first inclined surface 333. The angle between the first inclined surface 333 and the second inclined surface 335 can be set in a specific range of 5° to 60°.

[0054] Please refer to Figure 3 again. The lower plastic 300 includes a first wall panel 311, a second wall panel 313 and a third wall panel 315 connected in sequence. The first wall panel 311, the second wall panel 313 and the third wall panel 315 together surround and form a first accommodating cavity 310. The connecting portion 330 is set on the first wall panel 311 and the third wall panel 315.

[0055] Based on the above arrangement, the lower plastic 300 is positioned and fixed on both sides by the first wall panel 311 and the third wall panel 315, thereby achieving a secure assembly between it and the bracket 500. It should be noted that in other embodiments, the connecting portion 330 may be provided with either the first wall panel 311 or the third wall panel 315 alone. Furthermore, it should be noted that the first wall panel 311, the second wall panel 313, and the third wall panel 315 may be integrally formed or separately formed and then connected and fixed.

[0056] Optionally, the first wall panel 311 and the third wall panel 315 are symmetrically arranged and have the same structure, and the length of the second wall panel 313 is greater than the length of the first wall panel 311 or the third wall panel 315. It should be noted that the length of the second wall panel 313 refers to the distance between the first wall panel 311 and the third wall panel 315, while the length of the first wall panel 311 or the third wall panel 315 refers to the distance from the second wall panel 313 to the open end of the U-shaped structure. This arrangement avoids setting the extension length of the connecting portion 330 too long, which would affect production costs.

[0057] Please refer to Figure 2 again. In order to improve the adaptability between the connecting portion 330 and the matching portion 530, the bracket 500 includes a first plate 511, a second plate 513 and a third plate 515 connected in sequence. The first plate 511, the second plate 513 and the third plate 515 together surround and form a second accommodating cavity 510, and the matching portion 530 is arranged on the first plate 511 and the third plate 515.

[0058] It is understood that the mating portion 530 of the first plate 511 corresponds to the connecting portion 330 of the first wall plate 311, and the mating portion 530 of the third plate 515 corresponds to the connecting portion 330 of the third plate 515. It is also understood that one end of the retaining structure 700 is connected to the second plate 513, and the other end is adjacent to the open end of the U-shaped bracket 500. Furthermore, the retaining structure 700 can be connected to both the first plate 511 and the second plate 513, or only to the middle portion of the second plate 513, depending on the location of the tabs 30.

[0059] Taking this embodiment as an example, the working principle and workflow of the battery cell support assembly 10 are as follows:

[0060] The open end of the U-shaped lower plastic 300 is aligned with the open end of the bracket 500, which is also a U-shaped structure, and moves relative to each other, so that the connecting portion 330 provided on the lower plastic 300 is matched with the matching portion 530 provided on the bracket 500, and the bracket 500 is accommodated in the first accommodating cavity 310 formed by the U-shaped lower plastic 300, thereby achieving the fixation of the lower plastic 300 and the bracket 500. In addition, the limiting structure 700 is connected to the bracket 500, and the limiting structure 700 is located in the second accommodating cavity 510. When the connecting portion 330 is matched with the matching portion 530, the limiting structure 700, the bracket 500, the lower plastic 300 and the top cover sheet 100 form an accommodating space, so that the tab 30 provided on the bare battery cell can pass through the gap between the limiting structure 700 and the lower plastic 300, and be guided by the limiting structure 700 and confined in the accommodating space.

[0061] In summary, the embodiment of the present disclosure provides a battery holder assembly 10, a battery and an electrical device, wherein the battery holder assembly 10 includes a top cover sheet 100, a lower plastic 300 and a bracket 500. In detail, the open end of the U-shaped lower plastic 300 is opposite to the open end of the bracket 500 which is also a U-shaped structure and moves relative to each other, so that the connecting portion 330 provided on the lower plastic 300 is matched with the matching portion 530 provided on the bracket 500, and the bracket 500 is accommodated in the first accommodation cavity 310 formed by the U-shaped lower plastic 300, thereby achieving the fixation of the lower plastic 300 and the bracket 500. Based on the above arrangement, the battery holder assembly 10 provided by the present disclosure is assembled with the lower plastic 300 and the top cover sheet 100 by only one bracket 500, thereby achieving the technical effect of reducing the number of brackets 500 to reduce costs, and at the same time, simplifying the assembly action of the bracket 500, achieving the technical effect of reducing the complexity of equipment assembly and saving time and effort during the assembly process.

[0062] The above are merely specific embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure. Industrial Applicability

[0063] In summary, the embodiments of the present disclosure provide a battery cell bracket assembly, a battery and an electrical device, which can reduce the number of brackets and achieve the technical effect of reducing costs. It can also simplify the bracket assembly action and reduce the complexity of equipment assembly, thereby achieving the technical effect of saving time and effort in the assembly process.

Claims

1. A battery support assembly, characterized in that: The battery cell bracket assembly includes a top cover sheet, a lower plastic and a bracket; the lower plastic is in a U-shaped structure and has a first accommodating cavity, the lower plastic is connected to the top cover sheet and the lower plastic is provided with a connecting portion; the bracket is in a U-shaped structure and has a second accommodating cavity, the bracket is provided with a matching portion that matches the connecting portion; when the connecting portion matches the matching portion, the bracket is accommodated in the first accommodating cavity.

2. The battery support assembly according to claim 1, characterized in that: The connecting portion is configured as a protrusion, and the matching portion is configured as a groove matching with the protrusion.

3. The battery support assembly according to claim 1, characterized in that: The connecting portion is configured as a groove, and the matching portion is configured as a protrusion matching with the groove.

4. The battery support assembly according to claim 2 or 3, characterized in that: The protrusion includes a first inclined surface, a second inclined surface, and a connecting surface connected between the first inclined surface and the second inclined surface.

5. The battery support assembly according to claim 4, characterized in that: The first inclined surface is symmetrically arranged with respect to the second inclined surface. The first inclined surface is inclined toward one side of the second inclined surface, and the second inclined surface is inclined toward one side of the first inclined surface.

6. The battery support assembly according to claim 5, characterized in that: The specific range of the included angle between the first inclined surface and the second inclined surface is 5° to 60°.

7. The battery cell support assembly according to any one of claims 1 to 6, characterized in that: The connecting portion extends from the lower plastic opening end to a wall surface arranged opposite to the lower plastic opening end.

8. The battery support assembly according to any one of claims 1 to 6, characterized in that: The battery cell bracket assembly also includes a limiting structure configured as a guide pole ear, the limiting structure is connected to the bracket, and the limiting structure is located in the second accommodating cavity. When the connecting portion is matched with the matching portion, there is a gap between the limiting structure and the lower plastic.

9. The battery support assembly according to claim 8, characterized in that: The limiting structure is connected to the wall surface opposite to the opening end of the bracket.

10. The battery cell support assembly according to claim 8 or 9, characterized in that: The thickness of the limiting structure decreases gradually along the direction toward the open end of the bracket.

11. The battery support assembly according to any one of claims 1 to 10, characterized in that: The lower plastic includes a first wall plate, a second wall plate and a third wall plate connected in sequence, the first wall plate, the second wall plate and the third wall plate together surround and form the first accommodating cavity, and the connecting portion is arranged on the first wall plate and the third wall plate.

12. The battery support assembly according to claim 11, characterized in that: The first wall panel and the third wall panel are symmetrically arranged and have the same structure, and the length of the second wall panel is greater than the length of the first wall panel or the third wall panel.

13. The battery support assembly according to claim 11 or 12, characterized in that: The bracket includes a first plate body, a second plate body and a third plate body connected in sequence, the first plate body, the second plate body and the third plate body together surround and form the second accommodating cavity, and the matching part is arranged on the first plate body and the third plate body.

14. A battery, characterized in that: The battery comprises the cell support assembly according to any one of claims 1-13.

15. An electrical equipment, characterized in that: The electrical equipment comprises the cell support assembly according to any one of claims 1 to 13, or the battery according to claim 14.

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