Energy storage box liquid cooling pipeline structure and assembly method thereof

Abstract

The invention relates to the technical field of energy storage box liquid cooling pipelines, in particular to an energy storage box liquid cooling pipeline structure and an assembling method thereof.The energy storage box liquid cooling pipeline structure comprises a battery mounting bracket mounted in an energy storage box and a liquid cooling pipeline assembly laid in the battery mounting bracket; the liquid cooling pipeline assembly comprises two liquid cooling first-stage pipelines, a plurality of liquid cooling second-stage pipelines distributed in the axial direction of the liquid cooling first-stage pipelines and a plurality of liquid cooling connecting pipes used for connecting the liquid cooling first-stage pipelines and the liquid cooling second-stage pipelines, a plurality of groups of liquid cooling third-stage pipelines are distributed in the axial direction of the liquid cooling second-stage pipelines, and each group comprises two liquid cooling third-stage pipelines; and one end of one liquid cooling primary pipeline is provided with a liquid cooling unit liquid inlet. According to the invention, the main pipeline of the liquid cooling pipeline is laid in the box body in advance, no interference is caused during subsequent assembly of electrical components, the main pipeline can be used as a main structure of the box body, the structural bearing capacity of the box body is provided, a part of installation steps are saved, and the problem of low installation efficiency is solved.

Description

Technical Field

[0001] The invention relates to the technical field of liquid cooling pipelines for energy storage boxes, and in particular to a liquid cooling pipeline structure for an energy storage box and an assembly method thereof. Background Art

[0002] Wind power generation, hydropower generation, solar power generation and other power generation methods will be affected by environmental changes, so the development of energy storage boxes came into being. As an energy storage structure, the energy storage box can store unstable green energy such as wind, hydropower, solar energy, etc. in batteries, and then stably transmit the stored electricity to the power grid, providing a stable, safe and reliable energy source for the surrounding areas. It greatly utilizes the efficiency of wind, hydropower, solar energy and other power generation.

[0003] At present, the battery energy in the energy storage system is getting bigger and bigger, and the development of electricity has also brought about a situation that the bigger the battery energy is, the higher the temperature and heat inside the battery is, so there is a need for matching cooling measures, so the energy storage box is equipped with a corresponding temperature control system. The current mainstream of temperature control is air cooling and liquid cooling. Liquid cooling has gradually replaced air cooling as the current optimal solution. By laying water pipes in the battery, water flows in the battery, taking away the heat of the battery, and controlling the internal temperature of the battery. In this way, the battery is protected, the battery life is greatly extended, and the high temperature of the battery is avoided so as not to cause the battery to malfunction. Damage, fire, and serious consequences.

[0004] The current problems caused by the liquid cooling pipeline structure of the energy storage box are:

[0005] 1. The structure is not modular. The liquid cooling tube has too many structural components and requires many prefabrication steps in advance, which has a great impact on the installation efficiency.

[0006] 2. There are three levels of liquid cooling pipes, and each level has a different shape. During installation, all pipes must be assembled in advance, resulting in too much space being occupied, making it difficult to put them into the energy storage box and making installation very difficult.

[0007] 3. Because of the complex shape, plastic pipes are needed for production. There are too many plastic pipes and the cost is too high.

[0008] In view of the above problems, we propose a liquid cooling pipeline structure for an energy storage box and an assembly method thereof. Summary of the invention

[0009] The object of the present invention is to provide a liquid cooling pipeline structure of an energy storage box and an assembly method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] A liquid cooling pipeline structure for an energy storage box, comprising:

[0012] A battery mounting bracket installed inside the energy storage box, and a liquid cooling pipeline assembly laid inside the battery mounting bracket;

[0013] The liquid cooling pipeline assembly comprises:

[0014] Two liquid-cooled primary pipelines, a plurality of liquid-cooled secondary pipelines distributed in the axial direction of the liquid-cooled primary pipeline, and a plurality of liquid-cooled connecting pipes for connecting the liquid-cooled primary pipeline with the liquid-cooled secondary pipeline, wherein a plurality of groups of liquid-cooled tertiary pipelines are distributed in the axial direction of the liquid-cooled secondary pipeline, with two in each group;

[0015] Among them, one end of one of the liquid-cooling first-level pipelines is provided with a liquid inlet of the liquid cooling unit, and one end of the other liquid-cooling first-level pipeline is provided with a liquid outlet of the liquid cooling unit.

[0016] Preferably, both ends of the liquid cooling connecting pipe are connected with pipe clamps, and the pipe clamps are connected with interfaces, one of the interfaces is opened on the liquid cooling primary pipeline, and the other interface is opened on one end of the liquid cooling secondary pipeline.

[0017] Preferably, both ends of the liquid-cooling connecting pipe are respectively connected to the primary liquid-cooling pipeline and the secondary liquid-cooling pipeline through corresponding pipe clamps and interfaces.

[0018] Preferably, the first-level liquid-cooling pipeline is connected to the second-level liquid-cooling pipeline through a liquid-cooling connecting pipe.

[0019] Preferably, the exterior of the liquid-cooled secondary pipeline is a rectangular parallelepiped structure, the interior of the liquid-cooled secondary pipeline is a hollow cylindrical structure, and the liquid-cooled secondary pipeline is connected to the liquid-cooled tertiary pipeline.

[0020] Preferably, a plurality of the liquid-cooled secondary pipelines are installed vertically along the pipeline laying direction of the liquid-cooled primary pipeline, so as to support the energy storage box body and protect the laid pipelines.

[0021] Preferably, a plurality of mounting bolt holes are provided on the outer wall of the liquid-cooled secondary pipeline.

[0022] Preferably, the battery mounting bracket is installed on the liquid cooling secondary pipeline through bolts and bolt holes, the two battery mounting brackets are used to install and support the battery, and one end of the liquid cooling secondary pipeline is connected to the battery, and the liquid cooling secondary pipeline is connected to the battery through the liquid cooling tertiary pipeline.

[0023] A method for assembling a liquid cooling pipeline structure of an energy storage box comprises the following steps:

[0024] Step S1: according to the bottom size of the energy storage box, two liquid-cooled primary pipelines are laid in parallel at the bottom of the energy storage box, and the primary pipelines are welded and fixed to the bottom of the inner wall of the energy storage box;

[0025] Step S2: evenly distribute a plurality of liquid-cooled secondary pipelines vertically along the pipeline laying direction of the liquid-cooled primary pipeline, weld and fix the bottom of the liquid-cooled secondary pipeline to the bottom of the energy storage box, and make the interfaces of the liquid-cooled secondary pipeline correspond to the interfaces on the liquid-cooled primary pipeline one by one;

[0026] Step S3: Fix the pipe clamps at both ends of the liquid cooling connecting pipe to the interfaces of the secondary liquid cooling pipeline and the primary liquid cooling pipeline respectively;

[0027] Step S4: installing a plurality of battery mounting brackets on the liquid cooling secondary pipeline at equal intervals by means of bolts;

[0028] Step S5: Mount the battery on the battery mounting bracket by means of bolts;

[0029] Step S6: connecting one end of the two liquid-cooling three-stage pipelines to the liquid-cooling two-stage pipeline, and connecting the other end of one of the liquid-cooling three-stage pipelines to the battery;

[0030] Step S7: connecting the third-stage liquid cooling pipeline on another second-stage liquid cooling pipeline to the other side of the battery, so that the entire liquid cooling pipeline forms a water circulation loop.

[0031] A liquid cooling flow method for a liquid cooling pipeline structure of an energy storage box, comprising the following steps:

[0032] The cooling water of the cooling unit enters the interior of one of the liquid-cooled primary pipelines through the liquid inlet of the liquid-cooling unit, the cooling water inside the liquid-cooling primary pipeline enters the interior of the liquid-cooling secondary pipeline through the liquid-cooling connecting pipe, the cooling water inside the liquid-cooling secondary pipeline enters the interior of the battery through the liquid-cooling tertiary pipeline, and then flows back into the corresponding liquid-cooling secondary pipeline through a liquid-cooling tertiary pipeline on the other side of the battery, the cooling water inside the liquid-cooling secondary pipeline flows back into the interior of another liquid-cooling primary pipeline through the corresponding liquid-cooling connecting pipe, and the cooling water inside the liquid-cooling primary pipeline flows back into the interior of the cooling unit through the liquid outlet of the liquid cooling unit to circulate and cool the battery.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present invention lays the main line of the liquid cooling pipeline in the box in advance, which will not cause interference when the electrical components are assembled later. It can also be used as the main structure of the box to provide the structural bearing capacity of the box, save some installation steps, and solve the problem of slow installation efficiency.

[0035] The present invention lays the primary main liquid cooling pipe and the secondary liquid cooling pipe before the energy storage box circuit is laid and the electrical components are installed. Therefore, there is no need to assemble all the pipes in advance and then install the liquid cooling pipes into the box after the circuit, box structural parts, etc. are installed. This improves the convenience of installation, thereby saving installation time and the number of personnel required for installation and improving efficiency.

[0036] The liquid cooling pipeline structure of the present invention uses metal pipes as the main liquid cooling pipelines, so the structure is simple and does not need to be made by molds. Part of the pipelines serve as structural bearing beams in the energy storage box, which greatly reduces the cost of the energy storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the assembly structure of the liquid cooling pipeline of the energy storage box of the present invention;

[0038] Figure 2 It is a schematic diagram of the single-circuit structure of the liquid cooling pipeline of the energy storage box of the present invention;

[0039] Figure 3 It is a complete schematic diagram of the various levels of the liquid cooling pipeline of the energy storage box of the present invention;

[0040] Figure 4 This is a schematic diagram of the structure of the liquid-cooled primary and secondary tube box of the present invention;

[0041] Figure 5 This is a schematic diagram of the connection structure of the first and second level liquid cooling pipelines of the present invention;

[0042] Figure 6 It is a schematic diagram of the liquid-cooled triode pipeline assembly structure of the present invention.

[0043] In the figure:

[0044] 1. Liquid cooling primary pipeline; 2. Liquid cooling connecting pipe; 3. Liquid cooling secondary pipeline; 4. Liquid cooling tertiary pipeline; 5. Battery mounting bracket; 6. Liquid inlet of liquid cooling unit; 7. Liquid outlet of liquid cooling unit; 8. Pipe clamp; 9. Interface. DETAILED DESCRIPTION

[0045] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0046] See also Figure 1-6 , a liquid cooling pipeline structure of an energy storage box, comprising:

[0047] A battery mounting bracket 5 installed inside the energy storage box, and a liquid cooling pipeline assembly laid inside the battery mounting bracket 5;

[0048] The liquid cooling circuit assembly includes:

[0049] Two liquid-cooling primary pipelines 1, a plurality of liquid-cooling secondary pipelines 3 distributed in the axial direction of the liquid-cooling primary pipelines 1, and a plurality of liquid-cooling connecting pipes 2 for connecting the liquid-cooling primary pipelines 1 with the liquid-cooling secondary pipelines 3, and a plurality of groups of liquid-cooling tertiary pipelines 4 distributed in the axial direction of the liquid-cooling secondary pipelines 3, with two in each group;

[0050] Among them, one end of one liquid-cooling primary pipeline 1 is provided with a liquid inlet 6 of the liquid cooling unit, and another end of the liquid-cooling primary pipeline 1 is provided with a liquid outlet 7 of the liquid cooling unit.

[0051] Preferably, both ends of the liquid cooling connecting pipe 2 are connected with pipe clamps 8, and the pipe clamps 8 are connected with interfaces 9, one interface 9 is opened on the liquid cooling primary pipeline 1, and the other interface 9 is opened at one end of the liquid cooling secondary pipeline 3.

[0052] In the above technical solution, further:

[0053] The main line of the liquid cooling pipeline is laid in the box in advance, which will not cause interference during the subsequent assembly of electrical components. It can also serve as the main structure of the box to provide the structural bearing capacity of the box; it saves some installation steps and solves the problem of slow installation efficiency.

[0054] like Figure 2 , Figure 3 and Figure 4 As shown, both ends of the liquid cooling connecting pipe 2 are connected to the liquid cooling primary pipeline 1 and the liquid cooling secondary pipeline 3 respectively through corresponding pipe clamps 8 and interfaces 9;

[0055] The liquid cooling primary pipeline 1 is connected to the liquid cooling secondary pipeline 3 through the liquid cooling connecting pipe 2;

[0056] The exterior of the liquid-cooled secondary pipeline 3 is a rectangular parallelepiped structure, the interior of the liquid-cooled secondary pipeline 3 is a hollow cylindrical structure, and the liquid-cooled secondary pipeline 3 is connected to the liquid-cooled tertiary pipeline 4 .

[0057] In the above technical solution, further:

[0058] The first-level main liquid cooling pipe and the second-level liquid cooling pipe are laid before the energy storage box circuit is laid and the electrical components are installed. Therefore, there is no need to assemble all the pipes in advance and then install the liquid cooling pipes into the box after the circuit and box structural parts are installed. This improves the installation convenience, saves installation time, the number of people required for installation, and improves efficiency.

[0059] like Figure 1 , Figure 3 and Figure 6 As shown, a plurality of liquid-cooled secondary pipelines 3 are installed vertically along the pipeline laying direction of the liquid-cooled primary pipeline 1 to support the energy storage box body and protect the laid pipelines;

[0060] The outer wall of the liquid cooling secondary pipeline 3 is provided with a plurality of mounting bolt holes;

[0061] The battery mounting bracket 5 is installed on the liquid cooling secondary pipeline 3 through bolts and bolt holes. The two battery mounting brackets 5 are used to install and support the battery, and one end of the liquid cooling secondary pipeline 3 is connected to the battery, and the liquid cooling secondary pipeline 3 is connected to the battery through the liquid cooling tertiary pipeline 4.

[0062] In the above technical solution, further:

[0063] The liquid cooling pipeline structure uses metal pipes as the main liquid cooling pipelines, so the structure is simple and does not need to be made through molds. Part of the pipeline acts as the structural bearing beams in the energy storage box, which greatly reduces the cost of the energy storage box.

[0064] like Figure 1-6 As shown, a method for assembling a liquid cooling pipeline structure of an energy storage box comprises the following steps:

[0065] Step S1: according to the bottom size of the energy storage box, two liquid-cooling primary pipelines 1 are laid in parallel at the bottom of the energy storage box, and the primary pipelines 1 are welded and fixed to the bottom of the inner wall of the energy storage box;

[0066] Step S2: evenly distribute a plurality of liquid-cooled secondary pipelines 3 vertically along the pipeline laying direction of the liquid-cooled primary pipeline 1, weld and fix the bottom of the liquid-cooled secondary pipeline 3 to the bottom of the energy storage box, and make the interface 9 of the liquid-cooled secondary pipeline 3 correspond one by one to the interface 9 on the liquid-cooled primary pipeline 1;

[0067] Step S3: The pipe clamps 8 at both ends of the liquid cooling connecting pipe 2 are respectively clamped and fixed to the interface 9 of the liquid cooling secondary pipeline 3 and the interface 9 on the liquid cooling primary pipeline 1;

[0068] Step S4: installing a plurality of battery mounting brackets 5 on the liquid cooling secondary pipeline 3 at equal intervals by means of bolts;

[0069] Step S5: Mount the battery on the battery mounting bracket 5 by means of bolts;

[0070] Step S6: connecting one end of the two liquid-cooling tertiary pipelines 4 to the liquid-cooling secondary pipeline 3, and connecting the other end of one of the liquid-cooling tertiary pipelines 4 to the battery;

[0071] Step S7: Connect the third-level liquid cooling pipeline 4 on another second-level liquid cooling pipeline 3 to the other side of the battery, so that the entire liquid cooling pipeline forms a water circulation loop.

[0072] like Figure 2 As shown, a liquid cooling flow method for a liquid cooling pipeline structure of an energy storage box comprises the following steps:

[0073] The cooling water of the cooling unit enters a liquid-cooled primary pipeline 1 through a liquid-cooled unit liquid inlet 6, the cooling water inside the liquid-cooled primary pipeline 1 enters a liquid-cooled secondary pipeline 3 through a liquid-cooled connecting pipe 2, the cooling water inside the liquid-cooled secondary pipeline 3 enters the battery through a liquid-cooled tertiary pipeline 4, and then flows back into the corresponding liquid-cooled secondary pipeline 3 through a liquid-cooled tertiary pipeline 4 on the other side of the battery, the cooling water inside the liquid-cooled secondary pipeline 3 flows back into another liquid-cooled primary pipeline 1 through the corresponding liquid-cooled connecting pipe 2, and the cooling water inside the liquid-cooled primary pipeline 1 flows back into the cooling unit through a liquid-cooled unit liquid outlet 7 to circulate and cool the battery.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid cooling pipeline structure for an energy storage box, characterized in that: include: A battery mounting bracket (5) mounted inside the energy storage box, and a liquid cooling pipeline assembly laid inside the battery mounting bracket (5); The liquid cooling pipeline assembly comprises: Two liquid-cooling primary pipelines (1), a plurality of liquid-cooling secondary pipelines (3) distributed in the axial direction of the liquid-cooling primary pipeline (1), and a plurality of liquid-cooling connecting pipes (2) used to connect the liquid-cooling primary pipeline (1) with the liquid-cooling secondary pipeline (3); a plurality of groups of liquid-cooling tertiary pipelines (4) are distributed in the axial direction of the liquid-cooling secondary pipeline (3), with two in each group; One end of one of the first-level liquid-cooling pipelines (1) is provided with a liquid inlet (6) for the liquid cooling unit, and another end of the first-level liquid-cooling pipeline (1) is provided with a liquid outlet (7) for the liquid cooling unit.

2. The energy storage tank liquid cooling pipeline structure according to claim 1, characterized in that: Both ends of the liquid cooling connecting pipe (2) are connected to pipe clamps (8), and the pipe clamps (8) are connected to interfaces (9), one of the interfaces (9) is opened on the liquid cooling primary pipeline (1), and the other interface (9) is opened at one end of the liquid cooling secondary pipeline (3).

3. The energy storage tank liquid cooling pipeline structure according to claim 1, characterized in that: The two ends of the liquid cooling connecting pipe (2) are respectively connected to the liquid cooling primary pipeline (1) and the liquid cooling secondary pipeline (3) through corresponding pipe clamps (8) and interfaces (9).

4. The energy storage tank liquid cooling pipeline structure according to claim 1, characterized in that: The first-level liquid cooling pipeline (1) is connected to the second-level liquid cooling pipeline (3) via a liquid cooling connecting pipe (2).

5. The energy storage tank liquid cooling pipeline structure according to claim 1, characterized in that: The exterior of the liquid-cooling secondary pipeline (3) is a rectangular parallelepiped structure, the interior of the liquid-cooling secondary pipeline (3) is a hollow cylindrical structure, and the liquid-cooling secondary pipeline (3) is connected to the liquid-cooling tertiary pipeline (4).

6. The energy storage tank liquid cooling pipeline structure according to claim 1, characterized in that: A plurality of the liquid-cooling secondary pipelines (3) are installed vertically along the pipeline laying direction of the liquid-cooling primary pipeline (1) to support the energy storage box body and protect the laid pipeline.

7. The energy storage tank liquid cooling pipeline structure according to claim 1, characterized in that: The outer wall of the liquid cooling secondary pipeline (3) is provided with a plurality of mounting bolt holes.

8. The energy storage tank liquid cooling pipeline structure according to claim 1, characterized in that: The battery mounting bracket (5) is mounted on the liquid cooling secondary pipeline (3) via bolts and bolt holes. The two battery mounting brackets (5) are used to mount and support the battery. One end of the liquid cooling secondary pipeline (3) is connected to the battery. The liquid cooling secondary pipeline (3) is connected to the battery via the liquid cooling tertiary pipeline (4).

9. The method for assembling a liquid cooling pipeline structure of an energy storage box according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step S1: according to the bottom size of the energy storage box, two liquid cooling primary pipelines (1) are laid in parallel on the bottom of the energy storage box, and the primary pipelines (1) are welded and fixed on the bottom of the inner wall of the energy storage box; Step S2: evenly distributing a plurality of liquid-cooled secondary pipelines (3) in a vertical shape along the pipeline laying direction of the liquid-cooled primary pipeline (1), and welding and fixing the bottom of the liquid-cooled secondary pipeline (3) to the bottom of the energy storage box, and making the interface (9) of the liquid-cooled secondary pipeline (3) correspond one-to-one with the interface (9) on the liquid-cooled primary pipeline (1); Step S3: The pipe clamps (8) at both ends of the liquid cooling connecting pipe (2) are respectively connected and fixed to the interface (9) of the liquid cooling secondary pipeline (3) and the interface (9) on the liquid cooling primary pipeline (1); Step S4: installing a plurality of battery mounting brackets (5) at equal intervals on the liquid cooling secondary pipeline (3) by means of bolts; Step S5: Mounting the battery on the battery mounting bracket (5) by means of bolts; Step S6: connecting one end of the two liquid-cooling three-stage pipelines (4) to the liquid-cooling two-stage pipeline (3), and connecting the other end of one of the liquid-cooling three-stage pipelines (4) to the battery; Step S7: The third-level liquid cooling pipeline (4) on another second-level liquid cooling pipeline (3) is connected to the other side of the battery, so that the entire liquid cooling pipeline forms a water circulation loop.

10. A liquid cooling flow method for a liquid cooling pipeline structure of an energy storage box according to any one of claims 1 to 8, characterized in that: The following steps are involved: The cooling water of the cooling unit enters the interior of one of the liquid-cooled primary pipelines (1) through the liquid-cooled unit liquid inlet (6), the cooling water in the liquid-cooled primary pipeline (1) enters the interior of the liquid-cooled secondary pipeline (3) through the liquid-cooled connecting pipe (2), the cooling water in the liquid-cooled secondary pipeline (3) enters the interior of the battery through the liquid-cooled tertiary pipeline (4), and then flows back into the interior of the corresponding liquid-cooled secondary pipeline (3) through a liquid-cooled tertiary pipeline (4) on the other side of the battery, the cooling water in the liquid-cooled secondary pipeline (3) flows back into the interior of another of the liquid-cooled primary pipelines (1) through the corresponding liquid-cooled connecting pipe (2), and the cooling water in the liquid-cooled primary pipeline (1) flows back into the interior of the cooling unit through the liquid-cooled unit liquid outlet (7), thereby circulating and cooling the battery.

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