CN220382229U

CN220382229U - New energy battery shell convenient to assemble

Info

Publication number: CN220382229U
Application number: CN202321918714.1U
Authority: CN
Inventors: 秦俊琦; 邹楚楠; 高雪源; 吴波; 沈跃钢; 余敦龙; 庄小飞; 冯连祥; 姜洪冬; 何丹; 孙泽文; 闫小鹏
Original assignee: Changzhou Baojin Precision Manufacturing Co ltd
Current assignee: Changzhou Baojin Precision Manufacturing Co ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2024-01-23
Anticipated expiration: 2033-07-20

Abstract

The utility model discloses a new energy battery shell convenient to assemble, which comprises an assembly shell, wherein a connecting groove is formed in one side of the assembly shell, and a connecting strip is arranged on the other side of the assembly shell; the bottom of the assembly shell is provided with a separation plate, a concave part is embedded in the bottom of one side of the assembly shell, a pipeline is connected to the concave part, and a cooling cavity is formed between the separation plate and the assembly shell; the sealing cover is installed on the upper portion of the assembly shell, a limiting plate is arranged at the center of the lower portion of the sealing cover, a moving plate is slidably installed in the limiting plate, elastic pressing and holding plates are connected between the moving plates on two sides, and springs are connected between the middle portions of the elastic pressing and holding plates and the middle portions of the limiting plate. The battery shell is clamped, assembled and connected, the integrity is improved, the bottom is subjected to heat dissipation and temperature reduction, the safety is improved, the bare cell is positioned and fixed, and the electrical connection is improved.

Description

New energy battery shell convenient to assemble

Technical Field

The utility model relates to the technical field of new energy batteries, in particular to a new energy battery shell convenient to assemble.

Background

For new energy automobiles, batteries are the most critical components, and are one of the fields of investment in fire and heat in the industry in recent years. The power battery can be classified into ternary material batteries, lithium iron phosphate batteries, lithium manganate batteries, lithium cobaltate batteries and the like according to the difference of positive electrode materials. The ternary material battery exceeds the lithium iron phosphate battery, becomes a power battery type with the first installed capacity ratio, and especially has considerable development prospect in the field of new energy passenger cars. At present, the power lithium battery is mainly a ternary material battery and a lithium iron phosphate battery, and when the new energy battery is installed, the battery is required to be installed by using a battery shell; the battery shell is used as a supporting body of the battery module, and plays a key role in safety work and protection of the battery module.

However, when the existing battery shell is used, a plurality of battery shells cannot be assembled, external clamps are required for fixed connection, cooling and heat dissipation of the bare cell inside the battery shell cannot be achieved, the temperature of the bare cell is easily increased, dangers occur, the bare cell cannot be fixed, the bare cell is easily loosened, and accurate electric connection cannot be achieved.

Disclosure of Invention

The utility model aims to provide a new energy battery shell convenient to assemble, which has the advantages of being convenient for clamping, assembling and connecting the battery shells, improving the integrity, facilitating the heat dissipation and the temperature reduction at the bottom, improving the safety, realizing the positioning and the fixing of a bare cell, improving the electric connection and the like, and solving the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the new energy battery shell convenient to assemble comprises an assembling shell, wherein a connecting groove is formed in one side of the assembling shell, and a connecting strip is fixedly arranged on the other side of the assembling shell;

the bottom of the assembly shell is fixedly provided with a separation plate, a concave part is embedded in the bottom of one side of the assembly shell, a pipeline is connected to the concave part, and a cooling cavity is formed between the separation plate and the assembly shell;

the upper portion fixed mounting of assembly casing has sealed lid, the fixed limiting plate that is equipped with in lower part center department of sealed lid, the sliding tray has been seted up to the inner wall of limiting plate, sliding tray's both sides slidable mounting has the movable plate, both sides fixedly connected with elasticity is pressed between the movable plate and is held the board, elasticity is pressed the middle part of holding the board with fixedly connected with spring between the middle part of limiting plate.

Preferably, the concave part is arranged on one side of the cooling cavity, and the end part of the pipeline is in threaded connection with a sealing nut.

Preferably, the inner wall of the assembly shell is fixedly provided with a battery cell insulating film, the inner side of the battery cell insulating film is movably provided with a bare battery cell, and the bare battery cell is arranged on the upper part of the isolation plate.

Preferably, two sides of the upper part of the bare cell are respectively and electrically connected with a tab, and two sides of the lower part of the sealing cover are respectively and fixedly provided with a connecting electrode, and the two connecting electrodes are electrically connected with the tabs.

Preferably, external electrodes are respectively and fixedly arranged on two sides of the upper surface of the sealing cover, and the two external electrodes are respectively and electrically connected with the two connecting electrodes.

Preferably, the sealing cover is fixedly connected with the assembly shell through a plurality of connecting bolts, the upper surface of the sealing cover is provided with a sedimentation hole, and nuts of the connecting bolts are positioned in the sedimentation hole.

Preferably, the lower surface of the elastic pressing plate is in fit connection with the center of the upper surface of the bare cell, and the connecting strip on one side of the assembly shell is in clamping connection with the connecting groove on one side of the other assembly shell.

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

according to the utility model, the connecting grooves and the connecting strips are respectively arranged on the two sides of the assembly shell, so that the clamping connection between the assembly shells is realized, the interconnection between the whole battery packs is improved, the assembly shells are convenient to install on a new energy vehicle, and the stability is kept;

the bottom of the assembly shell is provided with the isolation plate, the cooling cavity is formed at the bottom of the assembly shell through the isolation plate, so that cooling liquid can be stored conveniently to cool the bare cells, and the embedded concave part is adopted, so that the arrangement of the pipeline is prevented from affecting the joint installation between the assembly shells;

according to the utility model, the elastic pressing plate and the spring are arranged at the lower part of the sealing cover, and the bare cell can be positioned and clamped through the setting of the spring and the elastic pressing plate, so that the bare cell is prevented from shaking when a new energy vehicle runs, and poor line contact is caused.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is an enlarged schematic view of FIG. 3A in accordance with the present utility model;

fig. 5 is an enlarged schematic view of fig. 3B in accordance with the present utility model.

In the figure: 1. assembling a shell; 2. a connecting groove; 3. a connecting strip; 4. sealing cover; 5. a limiting plate; 6. a sliding groove; 7. a moving plate; 8. an elastic pressing plate; 9. a spring; 10. a partition plate; 11. a cooling cavity; 12. a recessed portion; 13. a pipe; 14. a sealing nut; 15. a cell insulating film; 16. a bare cell; 17. a tab; 18. connecting the electrodes; 19. an external electrode; 20. a connecting bolt; 21. sedimentation holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

the new energy battery shell convenient to assemble comprises an assembling shell 1, wherein a connecting groove 2 is formed in one side of the assembling shell 1, and a connecting strip 3 is fixedly arranged on the other side of the assembling shell 1;

the bottom of the assembly shell 1 is fixedly provided with a separation plate 10, a concave part 12 is embedded and installed at the bottom of one side of the assembly shell 1, a pipeline 13 is connected to the concave part 12, and a cooling cavity 11 is formed between the separation plate 10 and the assembly shell 1;

the upper portion fixed mounting of assembly casing 1 has sealed lid 4, the fixed limiting plate 5 that is equipped with in lower part center department of sealed lid 4, sliding tray 6 has been seted up to the inner wall of limiting plate 5, sliding tray 6's both sides slidable mounting has movable plate 7, both sides fixedly connected with elasticity is pressed and is held board 8 between the movable plate 7, elasticity press hold the middle part of board 8 with fixedly connected with spring 9 between the middle part of limiting plate 5.

Specifically, at least two connecting grooves 2 are formed in one side of the assembly shell 1, connecting strips 3 are correspondingly arranged on the other side of the assembly shell 1, the assembly shell 1 can be conveniently connected through setting of the connecting strips 3 and the connecting grooves 2, stable connection between the assembly shells 1 can be kept, the assembly shell is integrated, a battery pack can be conveniently installed on a new energy vehicle, or the connecting grooves 2 are formed in two sides of the assembly shell 1, insertion connection can be carried out through the external connecting strips 3, and integral connection of the assembly shell 1 can be also achieved;

the bottom of the assembly shell 1 is welded with the isolation plate 10, the tightness between the isolation plate 10 and the assembly shell 1 is kept, a cooling cavity 11 is formed between the isolation plate 10 and the assembly shell 1, cooling liquid is filled in the cooling cavity 11, cooling treatment of the bare cell 16 is conveniently realized, the bare cell 16 is prevented from being excessively high in temperature and dangerous, a concave part 12 positioned in the cooling cavity 11 is embedded in one side of the bottom of the assembly shell 1, the concave part 12 is convenient to install a pipeline 13, the pipeline 13 is positioned in the cooling cavity 11, the pipeline 13 is prevented from affecting assembly connection between the assembly shells 1, and a sealing nut 14 is connected to the pipeline 13 in a threaded manner, so that cooling liquid is conveniently filled in the cooling cavity 11 or discharged;

the battery pack is characterized in that a battery cell insulating film 15 is fixedly arranged on the inner wall of the assembly shell 1, a bare battery cell 16 is movably arranged on the inner side of the battery cell insulating film 15, the bare battery cell 16 is arranged on the upper portion of the isolation plate 10, protection of the bare battery cell 16 is facilitated through setting of the battery cell insulating film 15, electric leakage is prevented, two sides of the upper portion of the bare battery cell 16 are respectively and electrically connected with a tab 17, connecting electrodes 18 are respectively and fixedly arranged on two sides of the lower portion of the sealing cover 4, the two connecting electrodes 18 are electrically connected with the tab 17, external electrodes 19 are respectively and fixedly arranged on two sides of the upper surface of the sealing cover 4, the two external electrodes 19 are respectively and electrically connected with the two connecting electrodes 18, serial-parallel connection between the bare battery cells 16 among the battery packs is facilitated through setting of the tab 17, the connecting electrodes 18 and the external electrodes 19, and power supply to a new energy vehicle is facilitated;

and through a plurality of connecting bolts 20 fixed connection between sealed lid 4 and the assembly casing 1, the sedimentation hole 21 has been seted up to the upper surface of sealed lid 4, the nut of a plurality of connecting bolts 20 is in the inside of sedimentation hole 21, be convenient for realize sealed lid 4 and assembly casing 1 through the settlement of connecting bolt 20 and connect, keep the stability of connection, and the settlement hole 21's settlement can prevent that the nut of connecting bolt 20 is outstanding, influence the installation, and there is limiting plate 5 at sealed lid 4's lower part center fixed mounting, and the cavity has been seted up in the inside of limiting plate 5, and sliding tray 6 has been seted up in the both sides of cavity, and both sides of sliding tray 6 are equipped with movable plate 7, and fixedly connected with elasticity is pressed and is held board 8 between the movable plate 7 in both sides, and fixedly connected with spring 9 between the middle part of elastic pressure is held board 8 and limiting plate 5, the lower surface department laminating of elastic pressure is held board 8 and bare cell 16's upper surface center department is connected, promptly through setting up of elastic pressure and is held board 8 and spring 9 so that sealed lid 4 when carrying out the installation, can be stable pressure is held location electric core 16, keep the stability of electric core 16, prevent that the bare cell 16 from taking place the new energy source when the power supply loose, the power supply circuit is unable to realize, the stability is realized.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a new energy battery casing convenient to assembly, includes assembly casing (1), its characterized in that: a connecting groove (2) is formed in one side of the assembly shell (1), and a connecting strip (3) is fixedly arranged on the other side of the assembly shell (1);

the bottom of the assembly shell (1) is fixedly provided with a separation plate (10), a concave part (12) is embedded and installed at the bottom of one side of the assembly shell (1), a pipeline (13) is connected to the concave part (12), and a cooling cavity (11) is formed between the separation plate (10) and the assembly shell (1);

the assembly casing is characterized in that a sealing cover (4) is fixedly arranged on the upper portion of the assembly casing (1), a limiting plate (5) is fixedly arranged at the center of the lower portion of the sealing cover (4), a sliding groove (6) is formed in the inner wall of the limiting plate (5), moving plates (7) are slidably arranged on two sides of the sliding groove (6), an elastic pressing plate (8) is fixedly connected between the moving plates (7) on two sides, and a spring (9) is fixedly connected between the middle portion of the elastic pressing plate (8) and the middle portion of the limiting plate (5).

2. The new energy battery housing for easy assembly of claim 1, wherein: the concave part (12) is arranged on one side of the cooling cavity (11), and the end part of the pipeline (13) is connected with a sealing nut (14) in a threaded manner.

3. The new energy battery housing for easy assembly of claim 1, wherein: the battery cell insulation film (15) is fixedly arranged on the inner wall of the assembly shell (1), a bare battery cell (16) is movably mounted on the inner side of the battery cell insulation film (15), and the bare battery cell (16) is arranged on the upper portion of the isolation plate (10).

4. A new energy battery housing for easy assembly according to claim 3, wherein: the upper portion both sides of naked electric core (16) are electric connection respectively has utmost point ear (17), the lower part both sides of sealed lid (4) are fixed respectively and are equipped with connecting electrode (18), two connecting electrode (18) with utmost point ear (17) electric connection.

5. The new energy battery housing for easy assembly of claim 4, wherein: external electrodes (19) are fixedly arranged on two sides of the upper surface of the sealing cover (4), and the two external electrodes (19) are electrically connected with the two connecting electrodes (18) respectively.

6. The new energy battery housing for easy assembly of claim 1, wherein: the sealing cover (4) is fixedly connected with the assembly shell (1) through a plurality of connecting bolts (20), sedimentation holes (21) are formed in the upper surface of the sealing cover (4), and nuts of the connecting bolts (20) are located in the sedimentation holes (21).

7. A new energy battery housing for easy assembly according to claim 3, wherein: the lower surface of the elastic pressing plate (8) is in fit connection with the center of the upper surface of the bare cell (16), and the connecting strip (3) on one side of the assembly shell (1) is clamped and connected in the connecting groove (2) on one side of the other assembly shell (1).