Power battery shell structure convenient to install and combine

Abstract

The utility model discloses a power battery shell structure convenient to mount and combine, relates to the technical field of battery shells, and solves the problem that a battery shell is complicated to mount and dismount. Comprising a tray, a plurality of frame monomers are connected in the tray, a plurality of battery cells are placed in the frame monomers, the upper side of the tray is connected with a cover plate, the lower side of the cover plate is connected with a cooling plate, the cooling plate abuts against the upper sides of the battery cells, and one end of the cooling plate extends out of the tray and is connected with a first cooling liquid inlet and a first cooling liquid outlet. The cooling plate is internally provided with a first cooling liquid flow channel with the two ends communicating with the first cooling liquid inlet and the first cooling liquid outlet correspondingly. The frame monomers are arranged to mount the battery cells, the battery cells can be conveniently mounted, the liquid cooling plate is mounted in the cover plate, the cover plate and the liquid cooling plate can be conveniently mounted and dismounted together, one end of the cooling plate extends out of the tray, the outer side of the battery shell can be conveniently communicated with a cooling liquid pipe, and the effect of convenient mounting and dismounting work is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery casings, and in particular to a power battery casing structure which is convenient for installation and assembly. Background Art

[0002] At present, energy and environmental protection issues are the focus of great social attention. New energy vehicles have been rapidly developed and applied in this context. In the development of new energy vehicles, batteries are an important component. With the development of the times, the need for energy conservation and environmental protection has promoted their development and application. Improving the quality of batteries and optimizing the production process are of great significance to promoting the development of the new energy industry.

[0003] However, the existing power battery housing is inconvenient to install. The battery cells need to be placed according to the position, and the liquid cooling plate also needs to be positioned, installed and connected, which makes the installation and disassembly of the battery housing more complicated and inconvenient for installation and maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide a power battery housing structure that is easy to install and assemble. A frame unit is provided to install battery cells, so that the battery cells can be easily installed. The liquid cooling plate is installed in the cover plate, so that the cover plate and the liquid cooling plate can be easily installed and disassembled together. One end of the cooling plate extends out of the tray, so that the cooling liquid pipe is connected to the outside of the battery housing, which facilitates loading and unloading.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A power battery housing structure that is easy to install and assemble includes a tray, a plurality of frame monomers are connected in the tray, a plurality of battery cells are placed in the frame monomers, the upper side of the tray is connected to a cover plate, the lower side of the cover plate is connected to a cooling plate, the cooling plate abuts against the upper side of the battery cells, one end of the cooling plate extends out of the tray and is connected to a first coolant inlet and a first coolant outlet, and the cooling plate is provided with a first coolant flow channel whose two ends are respectively connected to the first coolant inlet and the first coolant outlet.

[0007] By adopting the above technical solution, a frame unit is set to install the battery cell, so that the battery cell can be easily installed. The liquid cooling plate is installed in the cover plate, which is convenient for the installation and disassembly of the cover plate and the liquid cooling plate. One end of the cooling plate extends out of the tray, which is convenient for connecting the coolant pipe on the outside of the battery shell, thereby facilitating loading and unloading.

[0008] Furthermore, the side wall of the tray is connected to a second coolant inlet and a second coolant outlet, and the side wall of the tray is provided with a second coolant flow channel with two ends respectively connected to the second coolant inlet and the second coolant outlet.

[0009] By adopting the above technical solution and setting a second coolant flow channel, different heating or cooling requirements at the periphery and center of the battery core can be met, thereby improving the cooling effect and the final uniformity of cooling.

[0010] Furthermore, the first coolant flow channel is S-shaped and covers the upper side of the battery cell.

[0011] The above technical solution is used to cool the upper side of the battery cell.

[0012] Furthermore, the second coolant flow channel is arranged around the tray, and includes a plurality of parallel small flow channels, and each parallel small flow channel is separated by a flow channel partition.

[0013] By adopting the above technical solution, the battery cell is cooled all around to cope with the situation where the electrodes at both ends of the battery cell heat up more seriously, the cooling effect and cooling uniformity are improved, and the processing and uniform flow of the coolant are facilitated through parallel small flow channels.

[0014] Furthermore, the farther the height of the parallel small flow channels is from the corresponding second coolant inlet or second coolant outlet, the farther the projection of the corresponding end position on the horizontal plane is from the corresponding second coolant inlet or second coolant outlet.

[0015] By adopting the above technical solution, the coolant can flow along each parallel small flow channel, thereby achieving uniform cooling around the battery cell and improving the cooling effect.

[0016] Furthermore, the cooling plate is inserted into the cover plate along a horizontal direction.

[0017] By adopting the above technical solution, the connection and installation of the cooling plate are facilitated.

[0018] Furthermore, the tray is connected to a plurality of positioning rods arranged upward, and the cooling plate is provided with positioning holes matched with the positioning rods.

[0019] By adopting the above technical solution, the stability of the cooling plate position after installation is improved.

[0020] Furthermore, the frame unit is connected to the tray via screws on all sides.

[0021] By adopting the above technical solution, the stability of the position of the frame unit in the pallet is facilitated and the positioning and installation effect is improved.

[0022] In summary, the utility model has the following beneficial effects:

[0023] Several frame units are connected in the tray to install battery cells, which can complete the convenient installation of battery cells; the liquid cooling plate is installed in the cover plate, which is convenient for the installation and disassembly of the cover plate and the liquid cooling plate together, and the cooling plate is plugged into the cover plate in the horizontal direction, which is convenient for the connection and installation of the cooling plate, and a positioning rod is provided to ensure the stability of the cooling plate position after installation; one end of the cooling plate extends out of the tray, which is convenient for connecting the coolant pipe on the outside of the battery shell, facilitating loading and unloading.

[0024] A second coolant flow channel is provided in the side wall of the tray to meet different heating or cooling requirements around and in the center of the battery cell. The first coolant flow channel is S-shaped and covers the upper side of the battery cell, while the second coolant flow channel is arranged around the tray to cope with the situation where the electrodes at both ends of the battery cell heat up more seriously, thereby improving the cooling effect and cooling uniformity, and facilitating processing and uniform flow of coolant through parallel small flow channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of a power battery housing structure that is convenient for installation and assembly in the utility model;

[0027] Figure 2 This is a schematic structural diagram of a tray portion of a power battery housing structure that is convenient for assembly and installation in the utility model;

[0028] Figure 3 It is a structural schematic diagram of a cooling plate portion in a power battery housing structure that is convenient for assembly and installation in the utility model.

[0029] In the figure, 1, tray; 11, second coolant inlet; 12, second coolant outlet; 13, second coolant flow channel; 14, positioning rod; 2, frame unit; 3, cover plate; 4, cooling plate; 41, first coolant inlet; 42, first coolant outlet; 43, first coolant flow channel. DETAILED DESCRIPTION

[0030] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, and this embodiment does not constitute a limitation of the utility model. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] A power battery housing structure that is easy to install and assemble, such as Figure 1 and Figure 2 As shown, it includes a tray 1, a plurality of frame monomers 2 are connected in the tray 1, a plurality of battery cells are placed in the frame monomers 2, and the frame monomers 2 are connected to the tray 1 by screws on all sides, which facilitates the stability of the position of the frame monomers 2 in the tray 1 and improves the positioning and installation effect.

[0032] like Figure 3 As shown, the upper side of the tray 1 is connected to the cover plate 3, and the lower side of the cover plate 3 is connected to the cooling plate 4. The cooling plate 4 abuts against the upper side of the battery cell. One end of the cooling plate 4 extends out of the tray 1 and is connected to the first coolant inlet 41 and the first coolant outlet 42. The cooling plate 4 is provided with a first coolant flow channel 43 whose two ends are connected to the first coolant inlet 41 and the first coolant outlet 42 respectively.

[0033] The frame unit 2 is provided to install the battery cell, so that the battery cell can be conveniently installed. The liquid cooling plate is installed in the cover plate 3, so that the cover plate 3 and the liquid cooling plate can be conveniently installed and disassembled together. One end of the cooling plate 4 extends out of the tray 1, so that the cooling liquid pipe is connected to the outside of the battery shell, which is convenient for loading and unloading.

[0034] like Figure 1 As shown, a second coolant inlet 11 and a second coolant outlet 12 are connected to the side wall of the tray 1, and a second coolant flow channel 13 is provided in the side wall of the tray 1, with two ends respectively connected to the second coolant inlet 11 and the second coolant outlet 12; the second coolant flow channel 13 is provided to achieve different heating or cooling requirements around and at the center of the battery cell, thereby improving the cooling effect and the final uniformity of cooling.

[0035] like Figure 2 and Figure 3 As shown, the first coolant flow channel 43 is S-shaped, covering the upper side of the battery cell, and is used to cool the upper side of the battery cell. A plurality of capillary flow channels can be separated in the S-shaped flow channel; the second coolant flow channel 13 is arranged around the tray 1, and includes a plurality of parallel small flow channels, each of which is separated by a flow channel partition, and is used to cool the battery cell around to cope with the situation where the electrodes at both ends of the battery cell are heated more seriously, and the parallel small flow channels facilitate processing and uniform flow of the coolant;

[0036] The farther the height of the parallel small flow channels is from the corresponding second coolant inlet 11 or the second coolant outlet 12, the farther the projection of the corresponding end position on the horizontal plane is from the corresponding second coolant inlet 11 or the second coolant outlet 12, so that the coolant can flow along each parallel small flow channel to improve the cooling effect.

[0037] like Figure 2As shown, the cooling plate 4 is inserted into the cover plate 3 in the horizontal direction (extension plates are extended outward from the upper parts of both sides of the cooling plate 4, and are slidably connected to the cover plate 3 along the slide grooves on both sides of the cover plate 3); a plurality of upwardly arranged positioning rods 14 can also be connected to the tray 1, and positioning holes matched with the positioning rods 14 are provided on the cooling plate 4, thereby improving the stability of the position of the cooling plate 4 after installation.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the technical solution of the present invention.

Claims

1. A power battery housing structure that is easy to install and assemble, characterized in that: The tray (1) comprises a plurality of frame monomers (2) connected thereto, a plurality of battery cells placed in the frame monomers (2), the upper side of the tray (1) being connected to a cover plate (3), the lower side of the cover plate (3) being connected to a cooling plate (4), the cooling plate (4) being in contact with the upper side of the battery cells, one end of the cooling plate (4) extending out of the tray (1) and being connected to a first cooling liquid inlet (41) and a first cooling liquid outlet (42), and the cooling plate (4) being provided with a first cooling liquid flow channel (43) having two ends respectively connected to the first cooling liquid inlet (41) and the first cooling liquid outlet (42).

2. The power battery housing structure that is easy to assemble and install according to claim 1 is characterized in that: The side wall of the tray (1) is connected to a second coolant inlet (11) and a second coolant outlet (12), and the side wall of the tray (1) is provided with a second coolant flow channel (13) whose two ends are respectively connected to the second coolant inlet (11) and the second coolant outlet (12).

3. A power battery housing structure that is easy to assemble and assemble according to claim 1 or 2, characterized in that: The first coolant flow channel (43) is S-shaped and covers the upper side of the battery cell.

4. The power battery housing structure that is easy to assemble and install according to claim 2 is characterized in that: The second coolant flow channel (13) is arranged around the tray (1), and comprises a plurality of parallel small flow channels, each of which is separated by a flow channel partition.

5. The power battery housing structure that is easy to assemble and install according to claim 4 is characterized in that: The farther the height of the parallel small flow channels is from the corresponding second coolant inlet (11) or the second coolant outlet (12), the farther the projection of the corresponding end position on the horizontal plane is from the corresponding second coolant inlet (11) or the second coolant outlet (12).

6. The power battery housing structure that is easy to assemble and install according to claim 1 is characterized in that: The cooling plate (4) is inserted into the cover plate (3) in a horizontal direction.

7. A power battery housing structure that is easy to assemble and assemble according to claim 6, characterized in that: The tray (1) is connected to a plurality of positioning rods (14) arranged upward, and the cooling plate (4) is provided with positioning holes matched with the positioning rods (14).

8. The power battery housing structure that is easy to assemble and install according to claim 1 is characterized in that: The frame monomer (2) is connected to the tray (1) via screws on all sides.

Images