CN209515877U - An easy-to-assemble battery - Google Patents

Abstract

The utility model discloses an electric core convenient to equipment, including shell, utmost point ear fixed plate, electric core fin and heat conduction bottom, the shell below is provided with the heat conduction bottom, heat conduction bottom below is provided with electric core fin, the shaping has on the electric core fin the heat dissipation recess, the shell top is provided with utmost point ear fixed plate, the shaping has the fixed orifices on the utmost point ear fixed plate, the inside insulation board that is provided with of fixed orifices. The utility model provides an anode plate, negative pole piece, barrier film one and barrier film two are oval type structure, make its each other to inserting convenient and fast more, can improve the packaging efficiency of electric core, simultaneously in electric core working process, electric core fin and the radiating groove can play abundant radiating purpose, ensures that electric core has a stable operational environment, prolongs the life of electric core.

Description

An easy-to-assemble battery

technical field

The utility model relates to the technical field of electric cores, in particular to an electric core that is easy to assemble.

Background technique

Cell refers to a single electrochemical cell containing positive and negative electrodes, which is generally not used directly. Different from the battery contains a protective circuit and a shell, it can be used directly. The battery is divided into three types: aluminum shell battery, soft-pack battery (also known as "polymer battery"), and cylindrical battery. Usually mobile phone batteries use aluminum shell cells, digital products such as Bluetooth use soft-packed cells, and laptop batteries use a series-parallel combination of cylindrical cells. However, during the assembly process of existing cells, due to structural problems , which often leads to the reduction of the insertion efficiency of the internal components of the battery. At the same time, during the working process of the battery, the internal heat cannot be discharged in time, which affects the service life of the battery.

Utility model content

(1) Technical problems to be solved

In order to overcome the deficiencies of the prior art, a battery cell that is easy to assemble is proposed, which solves the problem that the existing battery cells have low plug-in efficiency of internal components of the battery cells during the assembling process and that the internal heat cannot be discharged in time during the working process of the battery cells. , which affects the service life of the battery.

(2) Technical solutions

The utility model is achieved through the following technical solutions: the utility model proposes a battery cell that is easy to assemble, comprising a casing, a tab fixing plate, a battery core heat sink and a heat-conducting bottom cover, and the heat-conducting bottom cover is arranged under the casing , the heat-dissipating fins are provided under the heat-conducting bottom cover, the heat-dissipating grooves are formed on the heat-dissipating fins, the tab fixing plates are arranged above the outer shell, and the tab fixing plates are formed with A fixing hole, an insulating plate is arranged inside the fixing hole, a sealing groove is arranged on the insulating plate, a sealing ring is arranged inside the sealing groove, a negative electrode tab is arranged on the upper side of the fixing plate of the tab, and the One side of the negative electrode tab is provided with a positive electrode tab, the first shell is provided with a separator, one side of the separator is provided with a positive electrode piece, and one side of the positive electrode piece is provided with a separator 2, the separator A negative pole piece is arranged on one side of the second membrane.

Further, the housing and the tab fixing plate are connected by screws, and the housing and the heat-conducting bottom cover are connected by screws.

Further, the heat sink of the battery cell and the heat conduction bottom cover are connected by screws.

Further, the positive electrode tabs are welded to the positive electrode tabs, and the negative electrode tabs are welded to the negative electrode tabs.

Further, the insulating plate is connected with the fixing hole by interference, and the sealing ring and the sealing groove are connected by pressing.

Further, the first separator is lapped with the positive pole piece, the positive pole piece and the negative pole piece are all lapped with the separator 2, the positive pole piece, the negative pole piece, The first isolation film and the second isolation film are elliptical structures.

Further, the outer diameter of the first separator is consistent with the size of the inner hole of the outer casing, the outer diameter of the positive electrode piece is consistent with the inner hole size of the first separator, and the inner diameter of the positive electrode piece is consistent with the size of the inner hole of the first electrode. The size of the outer diameter of the second separator is the same, and the size of the outer diameter of the negative pole piece is the same as the size of the inner hole of the second separator.

(3) Beneficial effects

Compared with the prior art, the utility model has the following beneficial effects:

1. In order to solve the problem of reducing the insertion efficiency of the internal components of the battery due to structural problems during the assembly process of the existing battery, the positive pole piece, the negative pole piece, the isolation film and the isolation film in the present invention are The second membrane is an oval structure, which makes it more convenient and quick to insert each other, and can improve the assembly efficiency of the battery;

2. In order to solve the problem that the internal heat cannot be discharged in time during the working process of the existing battery cell, which affects the service life of the battery core, the utility model in the working process of the battery core, the heat sink of the battery core and the heat dissipation concave The slot can fully dissipate heat, ensure a stable working environment for the cells, and prolong the service life of the cells.

Description of drawings

FIG. 1 is a front view of a battery cell that is easy to assemble according to the present invention;

Fig. 2 is the main sectional view of a kind of electric core which is easy to assemble according to the present invention;

3 is a top sectional view of a battery cell that is easy to assemble according to the present invention;

FIG. 4 is a top view of a tab fixing plate in a battery cell that is easy to assemble according to the present invention.

The reference numerals are explained as follows:

1. Shell; 2. Tab fixing plate; 3. Cell heat sink; 4. Positive electrode tab; 5. Negative electrode tab; 6. Heat dissipation groove; 7. Separator 1; 8. Separator 2; 9. positive pole piece; 10, negative pole piece; 11, insulating plate; 12, sealing groove; 13, sealing ring; 14, heat conduction bottom cover; 15, fixing hole.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

As shown in Figures 1 to 4, a battery cell that is easy to assemble includes a casing 1, a tab fixing plate 2, a battery cell heat sink 3, and a thermally conductive bottom cover 14. A thermally conductive bottom cover 14 is provided under the casing 1, and the thermally conductive bottom The cover 14 can play the role of transferring heat. The heat-conducting bottom cover 14 is provided with a cell heat sink 3, and the cell heat sink 3 is formed with a heat dissipation groove 6. Sufficient heat dissipation is carried out to ensure the stability of the working environment of the cell. A tab fixing plate 2 is arranged above the casing 1, and a fixing hole 15 is formed on the tab fixing plate 2. An insulating plate 11 is arranged inside the fixing hole 15. The insulating plate 11 Playing the role of insulation, the insulating plate 11 is provided with a sealing groove 12, the sealing groove 12 is provided with a sealing ring 13, the upper side of the pole lug fixing plate 2 is provided with a negative electrode tab 5, and one side of the negative electrode tab 5 is provided with a positive electrode The tab 4, the tab fixing plate 2 is used to fix the positive tab 4 and the negative tab 5, the outer casing 1 is provided with a separator 1 7, and one side of the separator 1 7 is provided with a positive electrode piece 9, a positive electrode piece 9 1 A separator 2 8 is arranged on the side, and a negative electrode piece 10 is arranged on one side of the separator 2 8 .

Among them, the shell 1 is connected with the tab fixing plate 2 by screws, the shell 1 is connected with the heat-conducting bottom cover 14 by screws, the cell heat sink 3 is connected with the heat-conducting bottom cover 14 by screws, and the positive electrode tab 4 is welded with the positive electrode plate 9. The negative pole lug 5 is welded with the negative pole piece 10, the insulating plate 11 is connected with the fixing hole 15 by interference, the sealing ring 13 and the sealing groove 12 are connected by pressing, and the isolation film 1 7 is overlapped with the positive pole piece 9, and the positive pole piece 9 and the negative pole piece 10 are all overlapped with the separator two 8, the positive pole piece 9, the negative pole piece 10, the separator one 7 and the separator two 8 are elliptical structures, and the outer diameter of the separator one 7 is the same as the outer diameter of the housing 1. The size of the inner hole is the same, the outer diameter of the positive pole piece 9 is the same as the inner hole size of the separator 1 7, the inner diameter of the positive pole piece 9 is the same as the outer diameter of the separator 2 8, and the outer diameter of the negative pole piece 10 is the same as that of the separator The size of the inner hole of the second 8 is the same.

The working principle of a battery cell that is easy to assemble as mentioned in the utility model: when assembling the battery core, since the positive pole piece 9 and the negative pole piece 10 are both overlapped with the isolation film 2 8, the outer diameter of the isolation film 1 7 Consistent with the inner hole size of the casing 1, the outer diameter of the positive pole piece 9 is the same as the inner hole size of the separator 1 7, the inner diameter of the positive pole piece 9 is the same as the outer diameter of the separator 2 8, and the outer diameter of the negative pole piece 10 is the same. The diameter is the same as the size of the inner hole of the separator 2 8, which can greatly improve the efficiency of assembling each other. At the same time, the positive pole piece 9, the negative pole piece 10, the separator 1 7 and the separator 2 8 are elliptical structures, so that they are mutually The insertion between them is more convenient and quick, the heat sink 3 of the battery can serve the purpose of heat dissipation, and the sealing groove 12 and the sealing ring 13 can enhance the sealing performance inside the casing 1 and prolong the service life of the battery.

The above-mentioned embodiments merely describe the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Under the premise of not departing from the design concept of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope of the present invention, and the technology claimed by the present invention shall be protected. The content has been fully described in the claims.

Claims (7)

1. A battery cell that is easy to assemble, characterized in that it comprises a housing (1), a tab fixing plate (2), a battery core heat sink (3) and a heat-conducting bottom cover (14), below the housing (1) The heat conduction bottom cover (14) is provided, the battery cell heat sink (3) is arranged under the heat conduction bottom cover (14), and a heat dissipation groove (6) is formed on the cell heat sink (3) The tab fixing plate (2) is arranged above the housing (1), a fixing hole (15) is formed on the tab fixing plate (2), and an insulating plate is arranged inside the fixing hole (15). (11), the insulating plate (11) is provided with a sealing groove (12), the sealing groove (12) is provided with a sealing ring (13), and the upper side of the tab fixing plate (2) is provided with a sealing ring (13). A negative electrode tab (5), a positive electrode tab (4) is provided on one side of the negative electrode tab (5), a separator one (7) is provided inside the outer casing (1), and the separator one (7) One side is provided with a positive pole piece (9), one side of the positive pole piece (9) is provided with a second separator (8), and one side of the second separator (8) is provided with a negative pole piece (10). 2. A battery cell that is easy to assemble according to claim 1, characterized in that: the shell (1) and the tab fixing plate (2) are connected by screws, and the shell (1) is connected to the The thermally conductive bottom cover (14) is connected by screws. 3 . The battery cell according to claim 1 , wherein the battery cell heat sink ( 3 ) and the heat conducting bottom cover ( 14 ) are connected by screws. 4 . 4. The battery cell according to claim 1, wherein the positive electrode tab (4) is welded to the positive electrode tab (9), and the negative electrode tab (5) is connected to the positive electrode tab (9). The negative pole piece (10) is welded. 5 . The battery cell according to claim 1 , wherein the insulating plate ( 11 ) is connected with the fixing hole ( 15 ) by interference, and the sealing ring ( 13 ) is connected to the fixing hole ( 15 ). The sealing groove (12) is connected by pressing. 6. A battery cell that is easy to assemble according to claim 1, wherein the first separator (7) is overlapped with the positive pole piece (9), and the positive pole piece (9) and The negative pole piece (10) is overlapped with the separator two (8), the positive pole piece (9), the negative pole piece (10), the separator one (7) and the The second isolation film (8) has an elliptical structure. 7. A battery cell that is easy to assemble according to claim 1, characterized in that: the outer diameter of the first separator (7) is the same as the inner hole size of the casing (1), and the positive pole piece The outer diameter of (9) is consistent with the size of the inner hole of the first separator (7), the inner diameter of the positive electrode piece (9) is consistent with the outer diameter of the second separator (8), and the negative electrode The outer diameter of the sheet (10) is consistent with the size of the inner hole of the second separator (8).