Cooling pipeline and mounting frame integrated system of new energy automobile battery system

Abstract

The utility model discloses a cooling pipeline and mounting frame integrated system of a new energy automobile battery system, which belongs to the technical field of new energy automobile batteries and comprises a battery frame, and six symmetrically distributed battery packs A are fixedly mounted on three layers above the battery frame. Four symmetrically distributed battery packs B are fixedly mounted on the fourth layer and the fifth layer of the battery frame, a cooling pipeline system is arranged on the outer surface of the battery frame, and a plurality of cooling pipe branches are arranged among the battery packs A, the battery packs B, the battery thermal management system and the cooling pipeline system. According to the utility model, the use of conventional pipelines is obviously reduced, a wider installation space is provided for key parts such as a battery system, high-voltage and low-voltage wire harnesses and the like, the problems of small arrangement space and difficulty in installation caused by increase of the capacity and the volume of the battery are effectively solved, the design of the cooling pipe branch enables connection to be simpler and more convenient, the installation difficulty is reduced, and the cost is reduced. And the assembly efficiency of the whole system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle batteries, and more specifically, to an integrated system of cooling pipes and mounting frames of a new energy vehicle battery system. Background Art

[0002] As the power source of new energy vehicles, the power battery system framework design is a core component of new energy vehicles, requiring multiple considerations. The framework must be strong enough to withstand impact from all directions to protect the battery modules from damage. Furthermore, the framework must be fireproof, waterproof, and dustproof to ensure safe battery operation in various environmental conditions. The operating temperature of the battery significantly affects its performance, so the framework design must incorporate effective thermal management strategies.

[0003] The patent with publication number CN219453230U discloses a unit tube and cooling pipe system for a new energy vehicle battery pack. The cooling pipe system includes a liquid inlet pipe, a liquid outlet pipe and a plurality of cooling branches. The liquid inlet pipe and the liquid outlet pipe are composed of a unit tube, and the unit tube includes a tube body, a plurality of pipe joints and a first sealing ring. A plurality of branch mounting parts are formed on the side wall of the tube body; the plurality of pipe joints have a first joint part, and a gap for adjusting the pipe joint is provided between the outer wall of the first joint part and the inner wall of the branch mounting part. When the position of the connection end of the cooling branch changes, the unit tube can adjust the position of the pipe joint through the gap, thereby compensating for the position deviation of the cooling branch connection end and facilitating installation. Secondly, a plurality of branch mounting parts are provided on the tube body of the utility model, which replaces the traditional three-way joint, reduces the pipeline structure and sealing position, makes the installation of the pipeline more convenient, and ensures the sealing performance.

[0004] Although the device has many beneficial effects, the following problems still exist: Although the construction frame can make the installation of pipelines more convenient and the sealing is more guaranteed, the water-cooled power battery cooling system is a widely used battery cooling system. The water-cooled power battery cooling system uses a special coolant to flow in the coolant pipe inside the power battery, transferring the heat generated by the power battery to the coolant, thereby reducing the temperature of the power battery. As consumers' demand for cruising range increases, the battery capacity and volume are also increasing. The frame layout is subject to the width and height of the vehicle, resulting in small space for the battery cooling system and high and low voltage wiring harnesses and difficult installation. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides an integrated system of cooling pipes and mounting frames of a new energy vehicle battery system, which solves the above-mentioned problems.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an integrated system of cooling pipes and mounting frames for a new energy vehicle battery system, comprising a battery frame, six boxes of symmetrically distributed battery packs A are fixedly installed on the upper three layers of the battery frame, four boxes of symmetrically distributed battery packs B are fixedly installed on the fourth and fifth layers of the battery frame, a battery thermal management system is provided on the bottom layer of the battery frame, a cooling pipe system is provided on the outer surface of the battery frame, and multiple cooling pipe branches are provided between the battery packs A, battery packs B, battery thermal management system and cooling pipe system.

[0009] Preferably, the cooling pipe system includes an expansion water tank and an expansion water tank filling port. The expansion water tank is fixedly installed on the outer surface of the battery frame. The expansion water tank is welded by three seamless steel pipes. The steel pipes are connected, and expansion water tank filling ports are welded above the steel pipes on both sides.

[0010] Preferably, the cooling pipe system also includes a main liquid outlet pipeline and a φ16 water outlet. The outer surface of the battery frame is fixedly connected to the main liquid outlet pipeline. The main liquid outlet pipeline is welded by three seamless steel pipes, and the steel pipes are connected. The main liquid outlet pipeline is welded to the corresponding battery pack on each layer with a φ16 water outlet. There are five φ16 water outlets, which are convenient for connection with multiple cooling pipe branches.

[0011] Preferably, a φ25 water outlet is welded in the middle of the outer surface of the main liquid outlet pipeline, and the φ25 water outlet is connected to the battery thermal management system through multiple cooling pipe branches.

[0012] Preferably, a hole is opened between the expansion water tank and the main liquid outlet pipeline and they are welded into one body.

[0013] Preferably, two main liquid inlet pipelines are fixed between the upper and lower inner walls of the battery frame. The main liquid inlet pipelines are composed of two separate seamless steel pipes. The main liquid inlet pipelines and each layer of the corresponding battery pack have φ16 water inlets. There are five 16φ water inlets, which are convenient for connection with multiple cooling pipe branches. Each main liquid inlet pipeline is welded with a 25φ water inlet at the bottom and is connected to the battery thermal management system through multiple cooling pipe branches and tee joints.

[0014] Preferably, a liquid level gauge is fixedly installed on the outer surface of one of the main liquid outlet pipes, and the liquid level gauge is located on the upper layer of the battery frame. Two iron blocks are welded at the installation position of the liquid level gauge, and the length, width and height of each iron block are 40*40*15mm, and an M10 thread is tapped in the center of the iron block.

[0015] Preferably, an automatic fire extinguishing device is fixedly installed in the middle of the lowermost layer of the battery frame, and a smoke detection device is fixedly installed in the middle of the uppermost layer of the battery frame.

[0016] (3) Beneficial effects

[0017] Compared with the existing technology, the utility model provides an integrated system of cooling pipes and mounting frames for new energy vehicle battery systems, which has the following beneficial effects:

[0018] 1. This new energy vehicle battery system cooling pipe and mounting frame integrated system significantly reduces the use of conventional pipes by integrating the battery frame and cooling pipes, providing more spacious installation space for key components such as the battery system and high and low voltage wiring harnesses. It effectively solves the problems of limited layout space and installation difficulties caused by the increase in battery capacity and volume. The design of the cooling pipe branch makes connection easier, reduces the difficulty of installation, and improves the assembly efficiency of the entire system.

[0019] 2. This new energy vehicle battery system integrates cooling pipes and mounting frames. The cooling pipe system is welded with seamless steel pipes, ensuring the smooth flow of coolant and heat transfer efficiency, effectively reducing the temperature of the power battery, and improving the stability and safety of the battery system. By optimizing the layout of the cooling pipe branches, such as the inlet and outlet design of battery packs A1 and B2, it not only improves the consistency of the formed tube and reduces mold costs, but also effectively shortens the length of the formed tube, further reducing system costs.

[0020] 3. This new energy vehicle battery system cooling pipe and mounting frame integrated system, through the automatic fire extinguishing device and smoke sensor integrated in the system, can quickly respond to battery fire, automatically activate the fire extinguishing device to quickly extinguish the fire, effectively ensuring the safety of the entire system. The installation design of the liquid level gauge allows staff to monitor the coolant level in real time, ensuring the normal operation of the cooling system, and further improving the safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cooling pipeline structure of the utility model.

[0023] In the figure: 1. Battery pack A; 2. Battery pack B; 3. Battery thermal management system; 4. Cooling pipe system; 401. Main liquid outlet pipe; 402. Main liquid inlet pipe; 403. Expansion water tank; 404. Liquid level gauge; 405. Expansion water tank filling port; 406. φ16 water inlet; 407. φ25 water inlet; 5. Battery frame; 6. Multiple cooling pipe branches; 7. Automatic fire extinguishing device; 8. Smoke detection device. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-2 , the utility model provides a technical solution:

[0026] A new energy vehicle battery system cooling pipeline and installation frame integrated system includes a battery frame 5. The upper three layers of the battery frame 5 are fixedly installed with six boxes of symmetrically distributed battery packs A1. The fourth and fifth layers of the battery frame 5 are fixedly installed with four boxes of symmetrically distributed battery packs B2. The bottom layer of the battery frame 5 is provided with a battery thermal management system 3. The outer surface of the battery frame 5 is provided with a cooling pipeline system 4. Multiple cooling pipeline branches 6 are provided between the battery packs A1, battery packs B2, the battery thermal management system 3 and the cooling pipeline system 4. The water inlet and outlet of the battery pack B2 are facing sideways. The φ16 water outlet 406 on the main liquid outlet pipeline 401 is welded in the vertical direction of the battery water outlet, effectively shortening the length of the formed pipe used and reducing costs.

[0027] Furthermore, the cooling pipe system 4 includes an expansion water tank 403 and an expansion water tank filling port 405. The expansion water tank 403 is fixedly installed on the outer surface of the battery frame 5. The expansion water tank 403 is welded by three seamless steel pipes. The steel pipes are connected. The expansion water tank filling port 405 is welded above the steel pipes on both sides. Liquid can be added from the expansion water tank filling port 405.

[0028] Furthermore, the cooling pipe system 4 also includes a main liquid outlet pipe 401 and a φ16 water inlet 406. The outer surface of the battery frame 5 is fixedly connected to the main liquid outlet pipe 401. The main liquid outlet pipe 401 is welded from three seamless steel pipes. The steel pipes are connected. The main liquid outlet pipe 401 and each layer of the corresponding battery pack are welded with a φ16 water inlet 406. There are five φ16 water inlets 406, which are convenient for connection with multiple cooling pipe branches 6. The water inlet and outlet of the battery pack A1 face forward. The φ16 water inlets 406 on the main liquid outlet pipe 401 and the main liquid inlet pipe 402 are distributed on both sides of the water inlet of the upper six boxes of battery pack A1, which improves the consistency of the formed pipe and reduces the mold cost.

[0029] Furthermore, a φ25 water inlet 407 is welded in the middle of the outer surface of the main liquid outlet pipeline 401, and the φ25 water inlet 407 is connected to the battery thermal management system 3 through multiple cooling pipe branches 6, and multiple cooling pipe branches 6 are connected between the φ25 water inlets 407 on the main liquid inlet pipeline 402.

[0030] Furthermore, a hole is opened between the expansion water tank 403 and the main liquid outlet pipe 401 and they are welded into one body.

[0031] Furthermore, two main liquid inlet pipelines 402 are fixed between the upper and lower inner walls of the battery frame 5. The main liquid inlet pipeline 402 is composed of two separate seamless steel pipes. The main liquid inlet pipeline 402 and each layer of the corresponding battery pack are equipped with a φ16 water inlet 406. There are five φ16 water inlets 406, which are convenient for connection with multiple cooling pipe branches 6. Each main liquid inlet pipeline 402 is welded with a φ25 water inlet 407 at the bottom and is connected to the battery thermal management system 3 by multiple cooling pipe branches 6 and tee joints. The connection of multiple cooling pipe branches 6 between the battery pack and the main liquid outlet pipeline 401 and the φ16 water inlet 406 on the main liquid inlet pipeline 402, and the connection of multiple cooling pipe branches 6 between the battery thermal management system 3 and the main liquid outlet pipeline 401 and the φ25 water inlet 407 on the main liquid inlet pipeline 402 reduce the difficulty of installation, are convenient to install, and are simple to operate.

[0032] Furthermore, a liquid level gauge 404 is fixedly installed on the outer surface of one of the main liquid outlet pipes 401. The liquid level gauge 404 is located on the upper layer of the battery frame 5. Two iron blocks are welded at the installation position of the liquid level gauge 404. The length, width and height of each iron block are 40*40*15mm. The center of the iron block is tapped with an M10 thread, which is convenient for the installation of the liquid level gauge 404.

[0033] Furthermore, an automatic fire extinguishing device 7 is fixedly installed in the middle of the bottom layer of the battery frame 5, and a smoke sensing device 8 is fixedly installed in the middle of the top layer of the battery frame 5. The smoke sensing device 8 and the automatic fire extinguishing device 7 are connected by a signal line. When the battery catches fire, the smoke sensing device 8 sends a signal to the automatic fire extinguishing device 7, and the automatic fire extinguishing device 7 starts to extinguish the fire quickly to ensure the safety of the entire system.

[0034] Working principle: When the staff needs to use the new energy vehicle battery system cooling pipe and installation frame integrated system, after installing the battery pack A1, battery pack B2 and battery thermal management system 3 on the battery frame assembly 5, it is only necessary to connect the battery pack with the main liquid outlet pipeline 401, the main liquid inlet pipeline 402, and the multiple cooling pipe branches 6 between the φ16 water inlet 406, and the battery thermal management system 3 with the main liquid outlet pipeline 401, the main liquid inlet pipeline 402, and the multiple cooling pipe branches 6 between the φ25 water inlet 407. This reduces the difficulty of installation, is convenient to install, and is simple to operate. The water inlet and outlet of the battery pack A1 face forward, and the φ16 water inlets 406 on the main liquid outlet pipeline 401 and the main liquid inlet pipeline 402 are distributed on both sides of the upper six boxes of battery pack A1 water inlet. side, which improves the consistency of the formed tube and reduces the mold cost; the water inlet and outlet of the battery pack B2 are facing the side, and the φ16 water inlet 406 on the main liquid outlet pipeline 401 is welded in the vertical direction of the battery outlet, which effectively shortens the length of the formed tube and reduces the cost. The battery frame 5 and the cooling pipe system 4 are integrated into an integrated solution, which reduces the use of conventional pipelines and only requires water pipe connections between branches, saving a lot of space for the battery system layout and improving space utilization. The smoke sensor 8 and the automatic fire extinguishing device 7 are connected by a signal line. When the battery catches fire, the smoke sensor 8 sends a signal to the automatic fire extinguishing device 7, and the automatic fire extinguishing device 7 starts rapid fire extinguishing to ensure the safety of the entire system. The center of the iron block is tapped with an M10 thread to facilitate the installation of the liquid level gauge 404.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle battery system cooling pipe and mounting frame integrated system, including a battery frame (5), characterized in that: Six symmetrically distributed battery packs A (1) are fixedly installed on the upper three layers of the battery frame (5); four symmetrically distributed battery packs B (2) are fixedly installed on the fourth and fifth layers of the battery frame (5); a battery thermal management system (3) is provided on the bottom layer of the battery frame (5); a cooling pipe system (4) is provided on the outer surface of the battery frame (5); and a plurality of cooling pipe branches (6) are provided between the battery packs A (1), the battery packs B (2), the battery thermal management system (3) and the cooling pipe system (4).

2. The integrated system of cooling pipes and mounting frame for a new energy vehicle battery system according to claim 1, characterized in that: The cooling pipe system (4) includes an expansion water tank (403) and an expansion water tank filling port (405). The expansion water tank (403) is fixedly mounted on the outer surface of the battery frame (5). The expansion water tank (403) is welded from three seamless steel pipes. The steel pipes are connected to each other, and the expansion water tank filling ports (405) are welded above the steel pipes on both sides.

3. The integrated system of cooling pipes and mounting frame for a new energy vehicle battery system according to claim 1, characterized in that: The cooling pipe system (4) further comprises a main liquid outlet pipe (401) and a φ16 water inlet (406). The outer surface of the battery frame (5) is fixedly connected with the main liquid outlet pipe (401). The main liquid outlet pipe (401) is welded by three seamless steel pipes, and the steel pipes are connected. The main liquid outlet pipe (401) is welded with a φ16 water inlet (406) at each layer of the corresponding battery pack. There are five φ16 water inlets (406) to facilitate connection with multiple cooling pipe branches (6).

4. The integrated system of cooling pipes and mounting frame for a new energy vehicle battery system according to claim 3 is characterized by: A φ25 water inlet (407) is welded in the middle of the outer surface of the main liquid outlet pipeline (401), and the φ25 water inlet (407) is connected to the battery thermal management system (3) through multiple cooling pipe branches (6).

5. The integrated system of cooling pipes and mounting frame for a new energy vehicle battery system according to claim 2 is characterized in that: A hole is opened between the expansion water tank (403) and the main liquid outlet pipeline (401) and the two are welded together into one.

6. The integrated system of cooling pipes and mounting frame for a new energy vehicle battery system according to claim 4, characterized in that: Two main liquid inlet pipes (402) are fixedly provided between the upper and lower inner walls of the battery frame (5). The main liquid inlet pipes (402) are composed of two separate seamless steel pipes. The main liquid inlet pipes (402) and each layer of the corresponding battery pack are provided with a φ16 water inlet (406). There are five φ16 water inlets (406) for easy connection with multiple cooling pipe branches (6). The bottom of each main liquid inlet pipe (402) is welded to a φ25 water inlet (407) and connected to the battery thermal management system (3) through multiple cooling pipe branches (6) and a three-way joint.

7. The integrated system of cooling pipes and mounting frame for a new energy vehicle battery system according to claim 3 is characterized by: A liquid level gauge (404) is fixedly mounted on the outer surface of one of the main liquid outlet pipes (401), and the liquid level gauge (404) is located at the upper layer of the battery frame (5). Two iron blocks are welded at the installation position of the liquid level gauge (404), and each of the iron blocks has a length, width and height of 40*40*15 mm, and an M10 thread is tapped at the center of the iron block.

8. The integrated system of cooling pipes and mounting frame for a new energy vehicle battery system according to claim 1, characterized in that: An automatic fire extinguishing device (7) is fixedly installed in the middle of the lowermost layer of the battery frame (5), and a smoke sensing device (8) is fixedly installed in the middle of the uppermost layer of the battery frame (5).

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