A battery and an electric device

Abstract

The application discloses a battery and an electric device, which comprise an insulating tray and an electric connection assembly for connecting single batteries; a plurality of hollow holes are arranged on the insulating tray at intervals to expose polarity parts of the single batteries and gaps between two adjacent single batteries; the electric connection assembly is installed on the insulating tray, the electric connection assembly partially extends to the hollow holes, and the electric connection assembly and the insulating tray jointly form a glue pouring flow channel opening, and the glue pouring flow channel opening at least partially faces the gaps. The battery and the electric device can improve the gluing fixing effect of the single batteries and the structural strength of the battery.

Description

Technical Field

[0001] This invention relates to the field of batteries, and more particularly to a battery and an electrical device. Background Technology

[0002] To increase the energy density of the battery, a large number of cylindrical cells need to be set in the battery, and the distance between adjacent cylindrical cells needs to be as small as possible. In addition, an electrical connection component is set on the top of the cylindrical cells, which will block the gaps between the cylindrical cells and prevent the glue from entering the gaps.

[0003] The small distance between cylindrical cells and the fact that electrical connection components can obstruct the gaps between them mean that the adhesive must first flow through the electrical connection components before entering the gaps. This can result in the adhesive not being properly injected into the gaps, leaving some gaps unfilled with adhesive. Consequently, some cells may not be properly secured, making it difficult for the battery structure to meet strength requirements.

[0004] Therefore, it is necessary to design a battery and electrical equipment so that the injected adhesive can better penetrate into the gaps between individual cells, thereby improving the fixing strength of the individual cells. Summary of the Invention

[0005] The purpose of this invention is to provide a battery and electrical device that allows the injected adhesive to better penetrate the gaps between individual cells, thereby improving the fixing strength of the individual cells.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A battery includes an insulating tray and an electrical connection assembly for connecting individual cells;

[0008] The insulating tray has several perforated holes spaced apart to expose the polar part of the individual cell and the gap between two adjacent individual cells.

[0009] The electrical connection assembly is mounted on the insulating tray, and the electrical connection assembly extends partially to form a potting channel opening together with the hollow hole and the insulating tray, and the potting channel opening is at least partially directly opposite the gap.

[0010] Optionally, the electrical connection assembly includes a first connecting piece and a second connecting piece;

[0011] The first connecting piece and the second connecting piece are alternately arranged along the arrangement direction of the plurality of hollow holes. The first connecting piece has a first extension portion extending into one of the hollow holes, and the second connecting piece has a second extension portion extending into the same hollow hole.

[0012] Optionally, the first connecting piece further includes a first plate and a third extension, the first extension and the third extension being respectively disposed on opposite sides of the first plate, and the first plate being disposed between two adjacent hollow holes;

[0013] The second connecting piece further includes a second plate and a fourth extension, the second extension and the fourth extension being respectively disposed on opposite sides of the second plate, and the second plate being disposed between two adjacent hollow holes.

[0014] Optionally, a first positioning post for positioning the first connecting piece is provided on the insulating tray, and the first connecting piece is provided with a first positioning hole that matches the first positioning post.

[0015] The insulating tray is also provided with a second positioning post for positioning the second connecting piece, and the second connecting piece is provided with a second positioning hole that matches the second positioning post.

[0016] Optionally, the angle between the extension direction of the first extension and the extension direction of the first plate is 60°.

[0017] Optionally, it also includes a support plate, which is provided with positioning grooves for positioning individual battery cells, and the centers of three adjacent positioning grooves form the three vertices of an equilateral triangle.

[0018] Optionally, the electrical connection assembly further includes a signal acquisition assembly, which includes a corrugated circuit board;

[0019] Both the first connecting piece and the second connecting piece are connected to the circuit board in the same electrical connection assembly.

[0020] Optionally, it also includes a positive electrode adapter bar, which is provided with a first welding part for connecting the positive electrode of a single cell and a first adapter part for connecting the first welding part, and the first adapter part is provided with a bent part for connecting a copper busbar.

[0021] Optionally, it also includes a negative electrode adapter bar, which is provided with a second welding part for connecting the negative electrode of a single cell and a second adapter part for connecting the second welding part.

[0022] An electrical device comprising a battery as described in any of the preceding claims.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In this embodiment, an insulating tray is provided to support the electrical connection assembly. The electrical connection assembly is mounted on the insulating tray and partially extends into the perforated hole so that the perforated hole forms a glue-filling channel. Since the glue-filling channel is at least partially directly facing the gap between adjacent individual cells, the glue can flow directly into the gap along the glue-filling channel and fix the individual cells after solidification. In this embodiment, by providing a glue-filling channel that directly connects the gap between individual cells, the glue can more easily enter the gap between adjacent individual cells, thereby improving the fixing effect of the individual cells. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0027] Figure 1 This is a schematic diagram of a battery explosion provided in an embodiment of the present invention;

[0028] Figure 2 for Figure 1 An enlarged view of position A in the middle;

[0029] Figure 3 A top view of a battery provided in an embodiment of the present invention;

[0030] Figure 4 for Figure 3 An enlarged view of position B in the middle;

[0031] Figure 5 This is a schematic diagram of the structure of the first connecting piece provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the second connecting piece provided in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the battery installation structure provided in an embodiment of the present invention.

[0034] Illustration: 1. Insulating tray; 100. Glue flow channel; 11. Hole; 12. First positioning post; 13. Second positioning post; 2. Electrical connection assembly; 21. First connecting piece; 211. First extension; 2101. First positioning hole; 212. First plate; 213. Third extension; 22. Second connecting piece; 221. Second extension; 222. Second plate; 2201. Second positioning hole; 223. Fourth extension; 3. Single battery cell; 301. Gap; 4. Support plate; 41. Positioning groove; 5. Signal acquisition assembly; 51. Circuit board; 6. Positive electrode adapter bar; 61. First welding part; 62. First adapter part; 7. Negative electrode adapter bar; 71. Second welding part; 72. Second adapter part. Detailed Implementation

[0035] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0036] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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 the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0037] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] Example 1

[0039] This invention provides a battery that allows adhesive to better penetrate the gaps between individual cells, improving the fixation effect of the individual cells and thus enhancing the structural strength of the battery.

[0040] In existing battery packs, the small distance between cylindrical cells and the obstruction of electrical connection components make it difficult to inject adhesive into the gaps between the cylindrical cells. As a result, some cylindrical cells are poorly secured, reducing the battery's impact resistance and structural strength.

[0041] Please see Figures 1 to 7 This embodiment provides a battery, including an insulating tray 1 and an electrical connection assembly 2 for connecting individual battery cells 3, wherein the insulating tray 1 is used to support the electrical connection assembly 2.

[0042] The insulating tray 1 has a number of perforated holes 11 spaced apart to expose the polar part of the individual cell 3 and the gap 301 between two adjacent individual cells 3; the electrical connection assembly 2 is installed on the insulating tray 1, and the electrical connection assembly 2 extends partially to the perforated holes 11 to form a potting channel 100 together with the insulating tray 1, and the potting channel 100 is at least partially directly opposite the gap 301.

[0043] Specifically, in this embodiment, the electrical connection component 2 partially extends into the perforated hole 11, partially obscuring the perforated hole 11 to form a potting channel 100. Since the potting channel 100 still has a portion facing the gap 301, the adhesive can flow directly from the potting channel 100 into the gap 301, thereby fixing the individual battery cells 3 on both sides of the gap. In this embodiment, the individual battery cell can be a cylindrical battery or a columnar battery with other cross-sectional shapes.

[0044] Optionally, the electrical connection assembly 2 includes a first connecting piece 21 and a second connecting piece 22; the first connecting piece 21 and the second connecting piece 22 are alternately arranged along the arrangement direction of a plurality of hollow holes 11, the first connecting piece 21 has a first extension 211 extending into a hollow hole 11, and the second connecting piece 22 has a second extension 221 extending into the same hollow hole 11.

[0045] It should be noted that the polarity portion of the single battery cell 3 in this embodiment includes a positive electrode and a negative electrode, and the positive and negative electrodes are located at the same end of the single battery cell 3. That is, both the positive and negative electrodes of the single battery cell 3 are exposed through the hollow hole 11. The first extension 211 is used to connect the positive or negative electrode of the single battery cell 3, and the second extension 221 is used to connect the negative or positive electrode of the same single battery cell 3, thereby satisfying the electrical connection requirements of the electrical connection assembly 2. For example, the positive electrode of a single battery cell 3 protrudes from its end, and its negative electrode has a ring structure surrounding the positive electrode, and the protrusion height of the positive electrode is greater than that of the negative electrode.

[0046] Optionally, the first connecting piece 21 further includes a first plate 212 and a third extension 213, the first extension 211 and the third extension 213 being respectively disposed on opposite sides of the first plate 212, and the first plate 212 being disposed between two adjacent hollow holes 11; the second connecting piece 22 further includes a second plate 222 and a fourth extension 223, the second extension 221 and the fourth extension 223 being respectively disposed on opposite sides of the second plate 222, and the second plate 222 being disposed between two adjacent hollow holes 11.

[0047] Specifically, the first connecting piece 21 connects the individual cells 3 in two adjacent hollow holes 11 in series, and the second connecting piece 22 connects the individual cells 3 in two adjacent hollow holes 11 in series. Alternating the first connecting piece 21 and the second connecting piece 22 can connect a whole row of individual cells 3 in series.

[0048] It should also be noted that a single cutout 11 can expose one or more individual battery cells 3; the first connecting piece 21 needs to have a corresponding number of first extensions 211 spaced at intervals corresponding to the number of individual battery cells 3 exposed in a single cutout 11; similarly, the second connecting piece 22 needs to have a corresponding number of first extensions 211. It should be noted that the multiple individual battery cells 3 in the same cutout 11 are connected in parallel. The electrical connection component 2 in this embodiment simplifies the structure and effectively realizes the series and parallel connection relationship between multiple individual battery cells 3.

[0049] Optionally, the insulating tray 1 is provided with a first positioning post 12 for positioning the first connecting piece 21, and the first connecting piece 21 is provided with a first positioning hole 2101 matching the first positioning post 12; the insulating tray 1 is also provided with a second positioning post 13 for positioning the second connecting piece 22, and the second connecting piece 22 is provided with a second positioning hole 2201 matching the second positioning post 13.

[0050] Specifically, the first positioning post 12 allows the first connecting piece 21 to be quickly installed in the appropriate position, and the second positioning post 13 allows the second connecting piece 22 to be quickly installed in the appropriate position, thereby increasing the battery installation efficiency and improving battery production efficiency. The first connecting piece 21 and the second connecting piece 22 can be fixed to the insulating tray 1 by riveting, bonding, hot pressing, etc.; preferably, the first connecting piece 21 and the second connecting piece 22 can be fixed to the insulating tray 1 by hot riveting.

[0051] Specifically, the battery also includes a support plate 4, on which positioning grooves 41 for positioning individual battery cells 3 are provided. The centers of three adjacent positioning grooves 41 form the three vertices of an equilateral triangle, which can make the assembly density of individual battery cells 3 higher and is conducive to improving the energy density of the battery.

[0052] Optionally, the angle between the extending direction of the first extension 211 and the extending direction of the first plate 212 is 60°. Specifically, when the individual cells 3 are arranged in an equilateral triangle, the first extension 211 is tilted at 60° relative to the first plate 212, which can effectively conduct the individual cells 3.

[0053] Optionally, the electrical connection assembly 2 further includes a signal acquisition assembly 5, which includes a wave-shaped circuit board 51; the first connecting piece 21 and the second connecting piece 22 are both connected to the circuit board 51 in the same electrical connection assembly 2.

[0054] Specifically, such as Figure 4 The wavy circuit board 51 can well accommodate the individual cells arranged in an equilateral triangle, avoiding competition for space with the first extension 211, the second extension 221, the third extension 213, or the fourth extension 223. In other words, by utilizing the available space, the circuit board 51 can still meet the needs of data collection. The circuit board 51 can collect data such as current and voltage from the individual cells 3 via contacts or other connectors.

[0055] Optionally, the battery also includes a positive electrode adapter 6, which is provided with a first welding part 61 for connecting the positive electrode of the single cell 3 and a first adapter part 62 for connecting the first welding part 61. The first adapter part 62 is provided with a bent part for connecting the copper busbar.

[0056] Optionally, the battery also includes a negative electrode adapter 7, which is provided with a second welding part 71 for connecting the negative electrode of the individual battery 3 and a second adapter part 72 for connecting the second welding part 71. The second adapter part 72 is perpendicular to the second welding part 71 to reduce the overall volume of the battery.

[0057] Example 2

[0058] This embodiment discloses an electrical device, including a battery as described in Embodiment 1.

[0059] Electrical equipment can include cars, mobile phones, portable devices, laptops, ships, spacecraft, medical equipment, electric toys, and power tools, etc.

[0060] Among them, automobiles can be gasoline-powered vehicles, natural gas-powered vehicles, or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc.; spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.

[0061] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery, characterized in that, Includes an insulating tray (1) and an electrical connection assembly (2) for connecting individual cells (3); The insulating tray (1) is provided with a number of perforated holes (11) at intervals to expose the polar part of the single cell (3) and the gap (301) between two adjacent single cells (3). The electrical connection assembly (2) is mounted on the insulating tray (1), and the electrical connection assembly (2) extends partially to the hollow hole (11) to form a potting channel (100) together with the insulating tray (1), and the potting channel (100) is at least partially opposite the gap (301). The electrical connection assembly (2) includes a first connecting piece (21) and a second connecting piece (22); The first connecting piece (21) and the second connecting piece (22) are alternately arranged along the arrangement direction of the plurality of hollow holes (11); the first connecting piece (21) has a first extension (211) extending into one of the hollow holes (11), and the second connecting piece (22) has a second extension (221) extending into the same hollow hole (11). The first connecting piece (21) further includes a first plate (212) and a third extension (213). The first extension (211) and the third extension (213) are respectively disposed on opposite sides of the first plate (212), and the first plate (212) is disposed between two adjacent hollow holes (11). The second connecting piece (22) further includes a second plate (222) and a fourth extension (223). The second extension (221) and the fourth extension (223) are respectively disposed on opposite sides of the second plate (222), and the second plate (222) is disposed between two adjacent hollow holes (11). The insulating tray (1) is provided with a first positioning post (12) for positioning the first connecting piece (21), and the first connecting piece (21) is provided with a first positioning hole (2101) matching the first positioning post (12). The insulating tray (1) is also provided with a second positioning post (13) for positioning the second connecting piece (22), and the second connecting piece (22) is provided with a second positioning hole (2201) matching the second positioning post (13).

2. The battery according to claim 1, characterized in that, The angle between the extension direction of the first extension (211) and the extension direction of the first plate (212) is 60°.

3. The battery according to claim 1, characterized in that, It also includes a support plate (4), on which a positioning groove (41) for positioning a single cell (3) is provided, and the centers of three adjacent positioning grooves (41) form the three vertices of an equilateral triangle.

4. The battery according to claim 1, characterized in that, The electrical connection assembly (2) further includes a signal acquisition assembly (5), which includes a wavy circuit board (51). The first connecting piece (21) and the second connecting piece (22) are both connected to the circuit board (51) in the same electrical connection assembly (2).

5. The battery according to claim 1, characterized in that, It also includes a positive electrode adapter (6), which is provided with a first welding part (61) for connecting the positive electrode of the single cell (3) and a first adapter part (62) for connecting the first welding part (61). The first adapter part (62) is provided with a bent part for connecting the copper busbar.

6. The battery according to claim 1, characterized in that, It also includes a negative electrode adapter (7), which is provided with a second welding part (71) for connecting the negative electrode of the single cell (3) and a second adapter part (72) for connecting the second welding part (71).

7. An electrical appliance, characterized in that, It includes the battery as described in any one of claims 1 to 6.

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