Immersed energy storage heat dissipation box

Abstract

The utility model relates to an immersed energy storage heat dissipation box. The immersed energy storage heat dissipation box comprises a plurality of battery modules and heat dissipation water pipe units arranged on the battery modules, wherein a plurality of battery modules are all placed in a heat dissipation box and are soaked by insulating heat dissipation liquid, so that the temperature consistency of the plurality of battery modules is improved, and heat dissipation water pipe units arranged on the battery modules are matched with an external liquid cooling unit, so that the heat dissipation effect of the battery modules is improved. The heat on the insulating heat dissipation liquid and the heat on the battery modules are indirectly taken away through the cooling liquid circularly flowing in the heat dissipation water pipe unit, so that the comprehensive heat dissipation of the plurality of battery modules in the heat dissipation box is realized; the first gap and the second gap are both used for dissolving the insulating heat dissipation liquid, so that the battery module is in all-dimensional contact with the insulating heat dissipation liquid for heat dissipation; secondly, the heat dissipation water pipe unit is composed of heat dissipation water pipes and is low in cost, convenient to install, high in stability and free of liquid leakage; therefore, high stability, simple structure, convenience in installation and low cost are realized, and the insulation heat dissipation liquid is prevented from being polluted to cause insulation failure.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for high-current battery modules, and more specifically, to an immersion energy storage heat dissipation box. Background Technology

[0002] With the development and progress of technology, the research and development of new energy sources is imperative. Immersion battery cooling involves directly immersing the battery in an insulating heat dissipation liquid. Compared with flat liquid cooling, air cooling and phase change cooling, it has advantages such as simple structure, rapid cooling and good temperature uniformity. However, this technology has high requirements for the sealing of the battery module, and problems such as leakage need to be solved.

[0003] Typical submerged energy storage systems mostly consist of sealed battery boxes, which contain batteries, insulating heat exchange fluid, inlet and outlet pipes, etc. A battery cluster contains 5 to 8 battery boxes, and each battery box removes heat through the flow of insulating heat exchange fluid. An energy storage container contains about 50 to 100 battery boxes. However, it has problems such as high cost and the need for the insulating heat exchange fluid to flow, which makes it susceptible to contamination, leading to insulation failure and leakage. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an immersion energy storage heat sink in which the heat from the insulating heat sink and the battery module is indirectly carried away by the coolant circulating inside the heat sink unit, which addresses the above-mentioned defects of the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An immersion energy storage heat dissipation box is constructed, comprising multiple battery modules and a heat dissipation water pipe unit disposed on the battery modules; wherein...

[0007] Multiple battery modules are placed inside a heat sink, which is a sealed design and filled with insulating heat dissipation liquid. A first gap is left between each battery module and an adjacent battery module, and a second gap is left between each battery module and the heat sink.

[0008] The battery modules are all insulated from the heat sink, and the beginning and end of the heat sink water pipe units on the battery modules are sealed and extend out of the heat sink.

[0009] The heat dissipation water pipe units on multiple battery modules are all connected to an external liquid cooling unit and are all circulated with coolant.

[0010] The cooling water pipe unit consists of one or more cooling water pipes, which are made of insulating material.

[0011] The immersion energy storage and heat dissipation box of this utility model is wherein the heat dissipation water pipe unit is composed of multiple heat dissipation water pipes arranged side by side.

[0012] In the immersion energy storage heat dissipation box of this utility model, the heat dissipation water pipe unit is coiled in a serpentine shape around the conductive busbar of the battery module.

[0013] In the immersion energy storage heat dissipation box of this utility model, the conductive busbar of the battery module is fixedly connected with a plurality of buckles that match the heat dissipation water pipe, and the buckles clamp the heat dissipation water pipe.

[0014] The immersion energy storage heat dissipation box of this utility model includes: a heat dissipation box body and a heat dissipation box cover, wherein the heat dissipation box cover is located on the top of the heat dissipation box body and is detachably fixedly connected or detachably fixedly sealed connected to the heat dissipation box body.

[0015] The heat sink body is welded and sealed; the heat sink is rectangular or cubic in shape.

[0016] In the immersion energy storage heat dissipation box of this utility model, multiple battery modules are placed vertically inside the heat dissipation box body.

[0017] In the immersion energy storage heat dissipation box of this utility model, multiple battery modules are fixedly connected together by multiple first fixing members.

[0018] In the immersion energy storage and heat dissipation box of this utility model, a plurality of first fixing members are fixedly connected to the inner side wall of the heat dissipation box body by a plurality of second fixing members.

[0019] The immersion energy storage heat dissipation box of this utility model has an insulating plate between the inner side wall of the heat dissipation box body and the battery module.

[0020] The immersion energy storage and heat dissipation box of this utility model contains an insulating heat dissipation liquid that is one of silicone oil, transformer oil, hydrocarbon, or mineral oil.

[0021] The beneficial effects of this utility model are as follows: Multiple battery modules are placed in a heat dissipation box and immersed in insulating heat dissipation fluid to improve the temperature uniformity of the multiple battery modules. A heat dissipation water pipe unit installed on the battery modules, in conjunction with an external liquid cooling unit, indirectly removes heat from the insulating heat dissipation fluid and the battery modules through the circulating coolant within the heat dissipation water pipe unit, achieving comprehensive heat dissipation for the multiple battery modules inside the heat dissipation box. Specifically, the first and second gaps are used to dissolve the insulating heat dissipation fluid, ensuring that the battery modules are in full contact with the insulating heat dissipation fluid for heat dissipation. Secondly, the heat dissipation water pipe unit is composed of heat dissipation water pipes, which are low in cost, easy to install, highly stable, and leak-proof. Therefore, it achieves high stability, simple structure, prevents the insulating heat dissipation fluid from being contaminated and causing insulation failure, and is easy to install, widely applicable, and low in cost. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is an exploded view of the battery module of the immersion energy storage heat dissipation box according to a preferred embodiment of the present invention;

[0024] Figure 2 This is a three-dimensional view of the immersion energy storage heat dissipation box of the preferred embodiment of this utility model;

[0025] Figure 3 This is a three-dimensional view of a preferred embodiment of the immersion energy storage heat dissipation box of the present invention, in which multiple battery modules are fixedly connected together by multiple first fasteners.

[0026] Figure 4 This is a three-dimensional partial cross-sectional view of the immersion energy storage heat dissipation box of the preferred embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] The preferred embodiment of this utility model is an immersion energy storage and heat dissipation box, such as... Figure 1 As shown, see also Figures 2 to 4It includes multiple battery modules 100 and a heat dissipation water pipe unit 110 disposed on the battery modules 100; wherein,

[0029] Multiple battery modules 100 are placed inside a heat sink 200. The heat sink 200 is a sealed design and is filled with insulating heat dissipation fluid. There is a first gap between each battery module 100 and an adjacent battery module 100, and a second gap between each battery module 100 and the heat sink 200. The first gap is about 10mm and the second gap is about 5mm.

[0030] Multiple battery modules 100 are insulated from the heat sink 200. The first and last ends of the heat sink water pipe units 110 on the multiple battery modules 100 are sealed and pass through the heat sink 200. Furthermore, multiple waterproof cable fixing heads 210 are also sealed and pass through the heat sink body 230 to pass through the heat sink water pipes 111.

[0031] The heat dissipation water pipe units 110 on multiple battery modules 100 are all connected to an external liquid cooling unit and are all circulated with coolant; wherein, the coolant is preferably water glycol.

[0032] The heat dissipation pipe unit 110 is composed of one or more heat dissipation pipes 111, and the heat dissipation pipes 111 are made of insulating material.

[0033] Multiple battery modules 100 are placed inside a heat dissipation box 200 and immersed in insulating heat dissipation fluid to improve the temperature uniformity of the multiple battery modules 100. A heat dissipation water pipe unit 110, located on each battery module 100, works in conjunction with an external liquid cooling unit. The circulating coolant within the heat dissipation water pipe unit 110 indirectly removes heat from the insulating heat dissipation fluid and the battery modules 100, achieving comprehensive heat dissipation for the multiple battery modules 100 inside the heat dissipation box 200. The first and second gaps are used to dissolve the insulating heat dissipation fluid, ensuring that the battery modules 100 are in full contact with the insulating heat dissipation fluid for heat dissipation. Furthermore, the heat dissipation water pipe unit 110 is composed of heat dissipation water pipes 111, which are low-cost, easy to install, highly stable, and leak-proof. Therefore, it achieves high stability, simple structure, prevents contamination of the insulating heat dissipation fluid leading to insulation failure, and is easy to install, widely applicable, and low-cost.

[0034] like Figure 1 and Figure 2 as well as Figure 4 As shown, the heat dissipation water pipe unit 110 is composed of multiple heat dissipation water pipes 111 arranged side by side. Multiple heat dissipation water pipes 111 are selected to improve heat dissipation efficiency based on the ambient temperature and the heat generated by the battery module 100. Among them, the heat dissipation water pipes 111 are plastic water pipes, which play an insulating role, prevent short circuits, and have low cost.

[0035] Furthermore, multiple water collectors 220 are fixedly connected to the outer wall of the heat sink body 230 for connecting the first or last end of multiple heat dissipation water pipes 111. All multiple water collectors 220 are connected to the external liquid cooling unit.

[0036] like Figure 1 and Figure 3 as well as Figure 4 As shown, the heat dissipation pipe unit 110 is coiled in a serpentine shape around the conductive busbar 130 of the battery module 100; the conductive busbar 130 of the battery module 100 needs to carry a large current and its heat generation is greater than the temperature of the battery cell 120 of the battery module 100, so heat dissipation is prioritized.

[0037] like Figure 1 and Figure 3 as well as Figure 4 As shown, the conductive bar 130 of the battery module 100 is fixedly connected with multiple clips 131 that match the heat dissipation pipe 111. The clips 131 clamp the heat dissipation pipe 111, which facilitates installation.

[0038] like Figure 2 and Figure 4 As shown, the heat sink 200 includes: a heat sink body 230 and a heat sink cover 240. The heat sink cover 240 is located on top of the heat sink body 230 and is detachably and fixedly connected to the heat sink body 230 or detachably and fixedly sealed to it; this facilitates the placement of the battery module 100.

[0039] The heat sink body 230 is welded and sealed; the heat sink 200 is rectangular or cubic in shape; easy to install.

[0040] like Figures 1 to 4 As shown, multiple battery modules 100 are placed vertically inside the heat dissipation box body 230; this facilitates hoisting, and the battery modules 100 do not require extensive structural design. Only multiple battery cells 120, conductive busbars 130, and data acquisition boards 140 need to be fixed together without considering load-bearing capacity. The battery module 100 is composed of multiple battery cells 120, multiple conductive busbars 130, and multiple data acquisition boards 140. Multiple fixing plates 121 and binding straps 122 are used to fix the multiple battery cells 120. The conductive busbars 130 are welded to the positive / negative terminals of the battery cells 120, and the data acquisition boards 140 are fixedly connected to the conductive busbars 130. Furthermore, multiple lifting rings (not shown in the figure) can be detachably fixed to the fixing plates 121 or the first fixing member 150 to facilitate hoisting the battery module 100 or multiple battery modules 100 fixedly connected together.

[0041] Furthermore, the heat sink body 230 is also sealed with multiple high-voltage connectors 250 and multiple low-voltage connectors 260. The high-voltage connectors 250 are connected to the conductive busbar 130 of the battery module 100 to transmit electrical energy to the outside, and the low-voltage connectors 260 are connected to the acquisition board 140 of the battery module 100 to transmit signals to the outside.

[0042] like Figure 1 and Figure 3 as well as Figure 4 As shown, multiple battery modules 100 are fixedly connected together by multiple first fasteners 150; wherein, the first fasteners 150 are angle irons, which are low in cost, small in size, and easy to install.

[0043] like Figures 2 to 4 As shown, multiple first fasteners 150 are fixedly connected to the inner wall of the heat sink body 230 by multiple second fasteners 160; wherein, the second fasteners 160 are also angle irons, which are low in cost, small in size and easy to install.

[0044] like Figures 2 to 4 As shown, an insulating plate 231 is provided between the inner wall of the heat sink body 230 and the battery module 100 to improve the insulation effect.

[0045] Furthermore, the insulating heat dissipation fluid is one of silicone oil, transformer oil, hydrocarbon, or mineral oil; to meet different usage requirements.

[0046] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An immersion energy storage heat dissipation box, comprising multiple battery modules and a heat dissipation water pipe unit disposed on the battery modules; characterized in that, Multiple battery modules are placed inside a heat sink, which is a sealed design and filled with insulating heat dissipation liquid. A first gap is left between each battery module and an adjacent battery module, and a second gap is left between each battery module and the heat sink. The battery modules are all insulated from the heat sink, and the beginning and end of the heat sink water pipe units on the battery modules are sealed and extend out of the heat sink. The heat dissipation water pipe units on multiple battery modules are all connected to an external liquid cooling unit and are all circulated with coolant. The heat dissipation water pipe unit consists of one or more heat dissipation water pipes, and the heat dissipation water pipes are made of insulating material; An insulating plate is provided between the inner wall of the heat sink body and the battery module.

2. The immersion energy storage and heat dissipation box according to claim 1, characterized in that, The cooling water pipe unit consists of multiple cooling water pipes arranged side by side.

3. The immersion energy storage and heat dissipation box according to claim 2, characterized in that, The cooling water pipe unit is coiled in a serpentine shape around the conductive busbar of the battery module.

4. The immersion energy storage and heat dissipation box according to claim 3, characterized in that, The conductive busbar of the battery module is fixedly connected with multiple clips that match the heat dissipation pipe, and the clips secure the heat dissipation pipe.

5. The immersion energy storage and heat dissipation box according to claim 1, characterized in that, The heat sink includes: the heat sink body and the heat sink cover, wherein the heat sink cover is located on the top of the heat sink body and is detachably and fixedly connected to the heat sink body or detachably and fixedly sealed. The heat sink body is welded and sealed; the heat sink is rectangular or cubic in shape.

6. The immersion energy storage and heat dissipation box according to claim 1, characterized in that, All of the battery modules are placed vertically within the heat dissipation box.

7. The immersion energy storage and heat dissipation box according to claim 1, characterized in that, Multiple battery modules are fixedly connected together by multiple first fasteners.

8. The immersion energy storage and heat dissipation box according to claim 7, characterized in that, Multiple first fasteners are fixedly connected to the inner wall of the heat sink body by multiple second fasteners.

9. The immersion energy storage and heat dissipation box according to claim 1, characterized in that, The insulating heat dissipation fluid is one of the following: silicone oil, transformer oil, hydrocarbon, or mineral oil.

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