Lithium cell convenient for heat dissipation

Abstract

The utility model discloses a lithium battery core convenient for heat dissipation, which comprises a lithium battery core outer shell, a lithium battery core body is arranged in the lithium battery core outer shell, a plurality of heat conduction columns are fixedly arranged on the upper outer surface and the lower outer surface of the lithium battery core outer shell, a heat conduction sheet is fixedly connected between two adjacent heat conduction columns, and two groups of heat dissipation fins are fixedly connected on each heat conduction sheet. A plurality of primary heat dissipation holes which are linearly distributed at equal intervals are formed in each heat dissipation fin, side fixing pieces are fixedly installed on the outer walls of the two sides of the lithium cell outer shell through screws, and two sets of side heat dissipation fins are fixedly installed on the outer walls, away from the lithium cell outer shell, of the two side fixing pieces; compared with the prior art, the lithium battery core disclosed by the utility model has an omnibearing and wrapping type heat dissipation effect, so that the lithium battery core has better heat dissipation efficiency and heat dissipation function, the lithium battery core is prevented from being damaged due to overheating, the economic loss is reduced, the overall service life is effectively prolonged, the potential safety hazard caused by overheating is reduced, and the lithium battery core is simple in overall structure, low in manufacturing cost and suitable for popularization and use.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery cells, in particular to a lithium battery cell that is convenient for heat dissipation. Background Art

[0002] Lithium battery is a kind of battery with lithium metal or lithium alloy as negative electrode material. Lithium-ion secondary rechargeable battery consists of battery cell and protection circuit board. Battery cell refers to a single electrochemical cell containing positive and negative electrodes. It is generally not used directly. Lithium battery cell is the carrier for storing electricity. Rechargeable battery without protection circuit board is battery cell. It is the storage part of rechargeable battery. The quality of battery cell directly determines the quality of rechargeable battery.

[0003] However, since lithium batteries generate a large amount of heat when used, some lithium batteries currently have poor heat dissipation, which will directly affect the operation of the battery cells. In more serious cases, it will cause irreversible damage to the lithium batteries, requiring all batteries to be replaced, which is costly and seriously affects the service life. Therefore, the utility model proposes a lithium battery cell that is easy to dissipate heat. Utility Model Content

[0004] The purpose of the present invention is to provide a lithium battery cell that is easy to dissipate heat, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a lithium battery cell that is easy to dissipate heat, comprising a lithium battery cell outer shell, a lithium battery cell installed inside the lithium battery cell outer shell, a plurality of heat-conducting columns fixedly installed on the upper and lower outer surfaces of the lithium battery cell outer shell, the plurality of heat-conducting columns are linearly distributed with equal intervals, a heat-conducting sheet is fixedly connected between two adjacent heat-conducting columns, each of the heat-conducting sheets is fixedly connected to two groups of heat dissipation fins, each of the heat dissipation fins is provided with a plurality of primary heat dissipation holes linearly distributed with equal intervals, side fixing members are fixedly installed on the outer walls of both sides of the lithium battery cell outer shell by screws, the side fixing members adopt a side "concave" structure design, and two groups of side heat dissipation fins are fixedly installed on the outer walls of the two side fixing members away from the lithium battery cell outer shell.

[0006] Preferably, each of the side heat sinks is provided with a plurality of secondary heat dissipation holes, and the plurality of secondary heat dissipation holes are linearly distributed at equal intervals.

[0007] Preferably, the heat-conducting columns, heat-conducting sheets, heat-dissipating fins, side fixing members and side heat-dissipating sheets are all made of metal with high heat-conducting efficiency.

[0008] Preferably, electrode sheet welding blocks are fixedly mounted on both sides of the front surface of the lithium battery cell outer shell, and electrode connecting plates are fixedly mounted on the lower surfaces of the electrode sheet welding blocks.

[0009] Preferably, a lithium battery electrode is fixedly mounted on the electrode connecting plate, and the lithium battery electrode is electrically connected to the lithium battery cell through the electrode connecting plate.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model is provided with a plurality of heat-conducting columns on the outer shell of the lithium battery cell. When the lithium battery cell inside the outer shell of the lithium battery cell generates heat, the heat-conducting columns can effectively conduct the heat of the lithium battery cell. The heat conducted by the heat-conducting columns can be transferred to the heat-conducting sheet. Two sets of heat-dissipating fins are provided on each heat-conducting sheet, and each heat-dissipating fin is provided with a plurality of first-level heat-dissipating holes distributed linearly at equal intervals. The heat-dissipating fins and the first-level heat-dissipating holes can effectively conduct and dissipate the internal heat, thereby effectively helping the lithium battery cell to dissipate heat.

[0012] The heat dissipation of the lithium battery cell is improved by the heat dissipation of the lithium battery cell, and the heat dissipation of the lithium battery cell is improved by the heat dissipation of the lithium battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front external structure of a lithium battery cell according to an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the heat-conducting column structure of the lithium battery cell shell according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the side fixing assembly structure of an embodiment of the present utility model.

[0016] In the figure: 1. Lithium battery cell shell; 2. Thermal conductive column; 3. Thermal conductive sheet; 4. Heat dissipation fin; 5. Primary heat dissipation hole; 6. Side fixing piece; 7. Side heat dissipation fin; 8. Secondary heat dissipation hole; 9. Electrode sheet welding block; 10. Electrode connecting plate; 11. Lithium battery electrode. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] See also Figure 1-3 The utility model provides an embodiment: a lithium battery cell that is easy to dissipate heat, including a lithium battery cell shell body 1, a lithium battery cell is installed inside the lithium battery cell shell body 1, a plurality of heat-conducting columns 2 are fixedly installed on the upper and lower outer surfaces of the lithium battery cell shell body 1, and the plurality of heat-conducting columns 2 are linearly distributed with equal intervals, and the bottom ends of the heat-conducting columns 2 are placed inside the lithium battery cell shell body 1, and a heat-conducting sheet 3 is fixedly connected between two adjacent heat-conducting columns 2, and each heat-conducting sheet 3 is fixedly connected to two groups of heat dissipation fins 4, and each heat dissipation fin 4 is provided with a plurality of primary heat dissipation holes 5 distributed linearly with equal intervals, and side fixing members 6 are fixedly installed on the outer walls of both sides of the lithium battery cell shell body 1 by screws, and the side fixing members 6 adopt a side "concave" structure design, and two groups of side heat dissipation fins 7 are fixedly installed on the outer walls of the two side fixing members 6 away from the lithium battery cell shell body 1.

[0021] Furthermore, each side heat sink 7 is provided with a plurality of secondary heat dissipation holes 8, and the plurality of secondary heat dissipation holes 8 are linearly distributed with equal spacing;

[0022] According to the above structure, the utility model is described as follows: a plurality of heat-conducting columns 2 are respectively provided on the lithium battery shell 1. When the lithium battery inside the lithium battery shell 1 generates heat, the heat-conducting columns 2 can effectively conduct the heat of the lithium battery, and the heat conducted by the heat-conducting columns 2 can be transferred to the heat-conducting sheet 3. Two groups of heat-dissipating fins 4 are provided on each heat-dissipating sheet 3, and each heat-dissipating fin 4 is provided with a plurality of evenly spaced linearly distributed primary heat-dissipating holes 5. The heat-dissipating fins 4 and the primary heat-dissipating holes 5 can effectively conduct and dissipate the internal heat, thereby effectively helping the lithium battery to dissipate heat.

[0023] Moreover, by providing a side fixing member 6 at the side of the lithium battery cell, a side heat sink 7 is installed on the side fixing member 6, and the side heat sink 7 and the secondary heat dissipation hole 8 are used in conjunction with each other, so that the lithium battery cell can be effectively heat-dissipated at the side. By coordinating the use of the heat-conducting column 2 and the heat dissipating fin 4, the utility model can complete the all-round and wrapped heat dissipation of the lithium battery cell, so that it has good heat dissipation efficiency and heat dissipation effect, avoids overheating damage of the lithium battery cell, reduces economic losses, effectively improves the overall service life, reduces the safety hazard of overheating, and has a simple overall structure and low manufacturing cost, which is suitable for popularization and use.

[0024] In order to ensure faster heat conduction efficiency, the heat conducting column 2, the heat conducting sheet 3, the heat dissipating fin 4, the side fixing member 6 and the side heat dissipating sheet 7 are all made of metal with high heat conduction efficiency, such as silver, copper and other metals.

[0025] In this embodiment, in order to ensure the normal use of the battery cell, electrode sheet welding blocks 9 are fixedly installed on both sides of the front surface of the lithium battery cell shell 1, and an electrode connecting plate 10 is fixedly installed on the lower surface of the electrode sheet welding block 9;

[0026] Furthermore, a lithium battery electrode 11 is fixedly mounted on the electrode connecting plate 10 , and the lithium battery electrode 11 is electrically connected to the lithium battery cell through the electrode connecting plate 10 .

[0027] Working principle: Those skilled in the art can effectively connect the lithium battery cell to electricity through the provided lithium battery electrode 11 to ensure the normal use effect of the utility model;

[0028] The utility model is provided with a plurality of heat-conducting columns 2 on the lithium battery shell 1. When the lithium battery inside the lithium battery shell 1 generates heat, the heat-conducting columns 2 can effectively conduct the heat of the lithium battery. The heat conducted by the heat-conducting columns 2 can be transferred to the heat-conducting sheet 3. Two groups of heat-dissipating fins 4 are provided on each heat-dissipating sheet 3, and each heat-dissipating fin 4 is provided with a plurality of first-level heat-dissipating holes 5 distributed linearly at equal intervals. The heat-dissipating fins 4 and the first-level heat-dissipating holes 5 can effectively conduct and dissipate the internal heat, thereby effectively helping the lithium battery to dissipate heat.

[0029] Moreover, a side fixing part 6 is provided at the side of the lithium battery cell, and a side heat sink 7 is installed on the side fixing part 6. By cooperating with the side heat sink 7 and the secondary heat dissipation hole 8, the lithium battery cell can be effectively heat-dissipated at the side. By cooperating with the use of the heat-conducting column 2 and the heat dissipation fin 4, the all-round and wrapped heat dissipation of the lithium battery cell of the utility model can be completed, so that it has good heat dissipation efficiency and heat dissipation effect, avoids overheating damage of the lithium battery cell, reduces economic losses, effectively improves the overall service life, reduces the safety hazard of overheating, and the overall structure is simple, the manufacturing cost is low, and it is suitable for popularization and use.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A lithium battery cell that is easy to dissipate heat, comprising a lithium battery cell outer shell (1), characterized in that: A lithium battery cell is installed inside the lithium battery cell shell (1), and a plurality of heat-conducting columns (2) are fixedly installed on the upper and lower outer surfaces of the lithium battery cell shell (1), and the plurality of heat-conducting columns (2) are linearly distributed at equal intervals. A heat-conducting sheet (3) is fixedly connected between two adjacent heat-conducting columns (2), and each heat-conducting sheet (3) is fixedly connected to two groups of heat-dissipating fins (4), and each heat-dissipating fin (4) is provided with a plurality of first-level heat-dissipating holes (5) linearly distributed at equal intervals. Side fixing members (6) are fixedly installed on the outer walls of both sides of the lithium battery cell shell (1) by screws, and the side fixing members (6) adopt a side "concave" structure design, and the two side fixing members (6) are away from the lithium battery cell shell (1). Two groups of side heat sinks (7) are fixedly mounted on the outer wall of the battery, and each of the side heat sinks (7) is provided with a plurality of secondary heat dissipation holes (8), and the plurality of secondary heat dissipation holes (8) are linearly distributed at equal intervals. The heat conducting column (2), the heat conducting sheet (3), the heat dissipation fin (4), the side fixing member (6) and the side heat sink (7) are all made of metal with high heat conduction efficiency. Electrode sheet welding blocks (9) are fixedly mounted on both sides of the front of the lithium battery core outer shell (1), and an electrode connecting plate (10) is fixedly mounted on the lower surface of the electrode sheet welding block (9). A lithium battery electrode (11) is fixedly mounted on the electrode connecting plate (10), and the lithium battery electrode (11) is electrically connected to the lithium battery core through the electrode connecting plate (10).

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