A novel battery pack liquid cooling structure

Abstract

The utility model relates to new energy battery package technical field, concretely relates to a novel battery package liquid cooling temperature drop structure, including battery package body, battery package body in be provided with battery compartment and wiring storehouse, battery compartment install battery module in, wiring storehouse be provided with a plurality of wire harness, the bottom of battery package body is provided with bottom liquid cooling plate, still include having side liquid cooling plate, side liquid cooling plate install in battery module's side wall, wiring storehouse be provided with a plurality of liquid cooling pipes, liquid cooling pipe link to each other with bottom liquid cooling plate and bottom liquid cooling plate respectively, solved because battery package heat dissipation and cannot increase power, temperature low and cannot quick start car and various problems.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery pack technology, specifically to a novel liquid cooling structure for battery packs. Background Technology

[0002] New energy, also known as unconventional energy, refers to various forms of energy other than traditional energy. It refers to energy that has just begun to be developed and utilized or is being actively researched and is yet to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy, and nuclear fusion energy. The cooling of the battery pack has always been an important factor limiting the energy of the battery cells. The continuously increasing energy of the battery cells leads to a continuous increase in the temperature rise of the battery.

[0003] Currently, most battery pack temperature control devices rely on bottom liquid cooling for heat dissipation or heating, leading to various problems such as the inability to increase power due to battery pack overheating or the inability to start the vehicle quickly due to low temperature.

[0004] At present, a novel liquid cooling structure for battery packs is proposed to solve the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this utility model is to provide a novel battery pack liquid cooling structure that achieves rapid cooling and heating through side liquid cooling and bottom liquid cooling, avoiding a series of problems such as overheating or overcooling of the battery, and solving various problems such as the inability to increase power due to battery pack heat dissipation and the inability to start the vehicle quickly due to low temperature.

[0006] The technical solution of this utility model is as follows:

[0007] A novel liquid cooling structure for a battery pack includes a battery pack body, within which a battery compartment and a wiring compartment are provided. A battery module is installed in the battery compartment, and several wire harnesses are provided in the wiring compartment. A bottom liquid cooling plate is provided at the bottom of the battery pack body, and a side liquid cooling plate is also provided. The side liquid cooling plate is installed on the side wall of the battery module. Several liquid cooling pipes are provided in the wiring compartment, and the liquid cooling pipes are respectively connected to the side liquid cooling plate and the bottom liquid cooling plate.

[0008] Furthermore, the battery compartment is equipped with a vertical beam that divides the battery compartment into two module compartments. The battery modules are divided into a left-facing battery module and a right-facing battery module, which are respectively installed in the two module compartments.

[0009] Further specifying, the side liquid cooling plate includes a left-side liquid cooling plate and a right-side liquid cooling plate. There are two left-side liquid cooling plates, which are respectively installed on the left and right side walls of the left-side battery module. There are also two right-side liquid cooling plates, which are respectively installed on the left and right side walls of the right-side battery module.

[0010] Further specifying, the front sidewall of the battery pack body is provided with a water inlet and a water outlet, and the liquid cooling pipe includes an inlet liquid cooling pipe and an outlet liquid cooling pipe, the inlet liquid cooling pipe is connected to the water inlet, and the outlet liquid cooling pipe is connected to the water outlet.

[0011] Further specifying, each of the two left-side liquid cooling plates and the two right-side liquid cooling plates is provided with a water inlet and a water outlet. The water inlet liquid cooling pipe includes a main water inlet pipe and a bottom water inlet liquid cooling pipe. The main water inlet pipe is connected to each of the water inlet ports through various branch pipes. One end of the bottom water inlet liquid cooling pipe is connected to the main water inlet pipe, and the other end is connected to the water inlet connection port on the bottom liquid cooling plate. The water outlet liquid cooling pipe includes a main water outlet pipe and a bottom water outlet liquid cooling pipe. The main water outlet pipe is connected to each of the water outlet ports through various branch pipes, and the bottom water outlet liquid cooling pipe is connected to the water outlet connection port on the bottom liquid cooling plate.

[0012] Furthermore, the left-side liquid cooling plate and the right-side liquid cooling plate are respectively installed on the left and right sides of the left-side battery module and the right-side battery module using bolts and structural adhesive.

[0013] The advantages of this utility model over the current technology are as follows:

[0014] 1. The installation method using bolts and structural adhesive can provide better fixation and is also more conducive to heat dissipation.

[0015] 2. The technical solution of bottom liquid cooling plate, left side liquid cooling plate and right side liquid cooling plate can achieve rapid cooling and heating, avoiding a series of problems such as overheating or overcooling of the battery.

[0016] 3. The batteries are grouped into sets of 24. Two sets of battery modules are pressed together using a tooling fixture. Structural adhesive is then applied to the bottom of the module compartment, and the battery modules are placed down and fixed. This increases the width of the battery pack and saves battery pack space. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram showing the connection relationship between the liquid cooling pipe, the side liquid cooling plate, and the bottom liquid cooling plate in this utility model;

[0019] The markings in the diagram correspond to: 1-Battery pack body, 2-Wiring compartment, 3-Vertical beam, 4-Module compartment, 5-Left-facing battery module, 6-Right-facing battery module, 7-Left-facing side liquid cooling plate, 8-Right-facing side liquid cooling plate, 9-Water inlet, 10-Water outlet, 11-Main water inlet pipe, 12-Bottom water inlet liquid cooling pipe, 13-Main water outlet pipe, 14-Bottom water outlet liquid cooling pipe. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0021] like Figure 1 and Figure 2 As shown, a novel battery pack liquid cooling structure includes a battery pack body 1, within which a battery compartment and a wiring compartment 2 are provided. A vertical beam 3 is installed within the battery compartment, dividing it into two module compartments 4. Each battery module contains 24 batteries and includes a left-facing battery module 5 and a right-facing battery module 6. Structural adhesive is applied to the bottom of the module compartment 4. Using tooling, the left-facing battery module 5 and the right-facing battery module 6 are respectively installed in the two module compartments 4. Structural adhesive is applied to the bottom of the module compartment 4, and the battery modules are then lowered and fixed. This design increases the width of the battery pack body 1 and saves space within it. A bottom liquid cooling plate is provided at the bottom of the battery pack body 1. The wiring compartment 2 contains several wire harnesses and several liquid cooling pipes. The liquid cooling pipes include inlet liquid cooling pipes and outlet liquid cooling pipes, as well as side liquid cooling plates. The side liquid cooling plates include left-side liquid cooling plate 7 and right-side liquid cooling plate 8. There are two left-side liquid cooling plates 7, which are installed on the left and right side walls of the left battery module 5, respectively. There are two right-side liquid cooling plates 8, which are installed on the left and right side walls of the right battery module 6, respectively. Both the left-side and right-side liquid cooling plates are installed by bolts and structural adhesive. A water inlet 9 and a water outlet 10 are provided on the front side wall of the battery pack body 1. The inlet liquid cooling pipe is connected to the inlet 9, and the outlet liquid cooling pipe is connected to the outlet 10.

[0022] Each of the two left-side liquid cooling plates 7 and the two right-side liquid cooling plates 8 is equipped with a water inlet and a water outlet. The water inlet liquid cooling pipe includes a main water inlet pipe 11 and a bottom water inlet liquid cooling pipe 12. The main water inlet pipe 11 is connected to the water inlet 9. The main water inlet pipe 11 is connected to each water inlet through various branch pipes. One end of the bottom water inlet liquid cooling pipe 12 is connected to the main water inlet pipe 11, and the other end is connected to the water inlet connection port on the bottom liquid cooling plate. The water outlet liquid cooling pipe includes a main water outlet pipe 13 and a bottom water outlet liquid cooling pipe 14. The main water outlet pipe 13 is connected to the water outlet 10. The main water outlet pipe 13 is connected to each water outlet through various branch pipes. The bottom water outlet liquid cooling pipe 14 is connected to the water outlet connection port on the bottom liquid cooling plate.

[0023] Coolant can enter from the inlet 9 and be distributed to the left side liquid cooling plate 7 and the right side liquid cooling plate 8 through the branch pipes on the main inlet pipe 11. It is also distributed to the bottom liquid cooling plate through the bottom inlet liquid cooling pipe 12. The bottom liquid cooling plate, the left side liquid cooling plate 7 and the right side liquid cooling plate 8 achieve rapid cooling and heating of the battery module to avoid a series of problems caused by overheating or overcooling of the battery. When it is necessary to replace the coolant or drain the coolant, the coolant is discharged through the outlet 10 through the branch pipes on the main outlet pipe 13 and the bottom outlet liquid cooling pipe 14.

[0024] The above provides a detailed description of a novel liquid cooling structure for a battery pack. The specific embodiments are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from it, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A novel battery pack liquid cooling structure, comprising a battery pack body (1), wherein a battery compartment and a wiring compartment (2) are provided inside the battery pack body (1), a battery module is installed inside the battery compartment, and a plurality of wire harnesses are provided inside the wiring compartment (2), and a bottom liquid cooling plate is provided at the bottom of the battery pack body (1), characterized in that: It also includes a side liquid cooling plate, which is installed on the side wall of the battery module. The wiring compartment (2) is provided with several liquid cooling pipes, which are respectively connected to the side liquid cooling plate and the bottom liquid cooling plate.

2. The novel battery pack liquid cooling structure according to claim 1, characterized in that: The battery compartment is provided with a vertical beam (3) that divides the battery compartment into two module compartments (4). The battery modules are divided into a left-facing battery module (5) and a right-facing battery module (6). The left-facing battery module (5) and the right-facing battery module (6) are respectively installed in the two module compartments (4).

3. The novel battery pack liquid cooling structure according to claim 2, characterized in that: The side liquid cooling plate includes a left-side liquid cooling plate (7) and a right-side liquid cooling plate (8). There are two left-side liquid cooling plates (7), which are respectively installed on the left and right side walls of the left-side battery module (5). There are two right-side liquid cooling plates (8), which are respectively installed on the left and right side walls of the right-side battery module (6).

4. The novel battery pack liquid cooling structure according to claim 3, characterized in that: The front side wall of the battery pack body (1) is provided with a water inlet (9) and a water outlet (10). The liquid cooling pipe includes an inlet liquid cooling pipe and an outlet liquid cooling pipe. The inlet liquid cooling pipe is connected to the inlet (9), and the outlet liquid cooling pipe is connected to the outlet (10).

5. The novel battery pack liquid cooling structure according to claim 4, characterized in that: The two left-side liquid cooling plates (7) and the two right-side liquid cooling plates (8) are each provided with a water inlet and a water outlet. The water inlet liquid cooling pipe includes a main water inlet pipe (11) and a bottom water inlet liquid cooling pipe (12). The main water inlet pipe (11) is connected to the water inlet (9). The main water inlet pipe (11) is connected to each water inlet through each branch pipe. One end of the bottom water inlet liquid cooling pipe (12) is connected to the main water inlet pipe (11), and the other end is connected to the water inlet connection port on the bottom liquid cooling plate. The water outlet liquid cooling pipe includes a main water outlet pipe (13) and a bottom water outlet liquid cooling pipe (14). The main water outlet pipe (13) is connected to the water outlet (10). The main water outlet pipe (13) is connected to each water outlet through each branch pipe. The bottom water outlet liquid cooling pipe (14) is connected to the water outlet connection port on the bottom liquid cooling plate.

6. The novel battery pack liquid cooling structure according to claim 3, characterized in that: The left-side liquid cooling plate (7) and the right-side liquid cooling plate (8) are respectively installed on the left and right sides of the left-side battery module (5) and the right-side battery module (6) by bolts and structural adhesive.

Images