Energy storage liquid cooling box

Abstract

The utility model provides an energy storage liquid cooling box, and belongs to the technical field of energy storage battery boxes. The energy storage liquid cooling box comprises a box body frame and a liquid cooling plate fixed below the box body frame, the box body frame and the liquid cooling plate form a mounting cavity, and the mounting cavity is used for mounting a battery module; the liquid cooling plate is internally provided with a cold liquid flow channel, the cold liquid flow channel is provided with at least two cooling liquid openings communicated with the outside, the cooling liquid openings are communicated with interface pieces, the interface pieces are fixed to the liquid cooling plate and located on the side where the box body frame is located, and the interface pieces are located outside the mounting cavity and extend upwards. According to the energy storage liquid cooling box provided by the invention, the mounting positions of the water receiving pieces are changed, so that when the energy storage liquid cooling boxes are stacked up and down, the liquid cooling plate of the energy storage liquid cooling box on the upper layer can shield the water receiving pieces on the energy storage liquid cooling box on the lower layer, and the water receiving pieces are prevented from being damaged in the transportation process.

Description

Technical Field

[0001] The present application relates to energy storage battery box technology, and in particular to an energy storage liquid cooling box. Background Art

[0002] With the development of new energy vehicles, the use of new energy batteries has become more widespread. In order to increase the service life of new energy batteries, new energy batteries will be equipped with an adaptive cooling system to cool the batteries.

[0003] New energy batteries typically consist of an external energy storage box and internal battery modules. Condensate channels are located on the sidewalls or bottom of the energy storage box. These channels allow for the flow of coolant, which removes heat generated by the battery modules and cools the battery as a whole. Currently, the energy storage box is equipped with two interface pipes connected to the condensate channels to facilitate the flow of coolant.

[0004] However, the existing interface pipe extends horizontally outward on the energy storage box. This structure is not conducive to stacking and transporting the energy storage boxes, and there is a situation where the interface pipe is easily damaged by collision. Utility Model Content

[0005] The present application provides an energy storage liquid cooling box, which is used to solve the problem that the energy storage liquid cooling boxes are easily damaged during stacking and transportation.

[0006] The present application provides an energy storage liquid cooling box, comprising a box frame and a liquid cooling plate fixed below the box frame, wherein the box frame and the liquid cooling plate form an installation cavity for installing a battery module;

[0007] The liquid cooling plate is provided with a cooling liquid channel, which has at least two cooling liquid ports communicating with the outside world. The cooling liquid ports are connected to an interface component, which is fixed to the upper surface of the liquid cooling plate.

[0008] The interface component is located outside the installation cavity and extends upward.

[0009] In a possible implementation, the interface component is located on the upper surface of the liquid cooling plate and extends vertically upward.

[0010] In a possible implementation, the outer wall of the box frame has at least two avoidance portions, and the interface member is disposed adjacent to the avoidance portions.

[0011] In a possible implementation, at least one connector is provided on the box frame, and the connector is used to connect a busbar of the battery module.

[0012] In a possible implementation, a reinforcing crossbeam is fixed in the box frame, and the reinforcing crossbeam is used to divide the installation cavity into two chambers.

[0013] In a possible implementation, a reinforcement frame is further included, and the reinforcement frame is located below the liquid cooling plate and connected to the liquid cooling plate.

[0014] In a possible implementation, the reinforcement frame includes a reinforcement frame and a plurality of reinforcement rods arranged in the reinforcement frame.

[0015] The reinforcement frame fits the liquid cooling plate and is fixed to the liquid cooling plate.

[0016] In a possible implementation, the reinforcing rods are arranged in a staggered manner horizontally and vertically.

[0017] In a possible implementation, at least one positioning groove is provided on the reinforcement frame, and the positioning groove is used to connect with a component provided thereunder.

[0018] In a possible implementation, at least one positioning member is provided on the box frame, and the positioning member is used to connect with a component provided above the positioning member.

[0019] The present application provides an energy storage liquid cooling box, which changes the installation position of the water receiving piece so that when the energy storage liquid cooling boxes are stacked up and down, the liquid cooling plate of the energy storage liquid cooling box on the upper layer can cover the water receiving piece on the energy storage liquid cooling box on the lower layer, thereby avoiding damage to the water receiving piece during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] Figure 1 An exploded diagram of the structure of the energy storage liquid cooling box provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of the structure of the energy storage liquid cooling box provided in an embodiment of the present application;

[0023] Figure 3 A diagram showing the position relationship between the water receiving member and the avoidance portion in the energy storage liquid cooling box provided in an embodiment of the present application;

[0024] Figure 4 A bottom view of the structure of the energy storage liquid cooling box provided in an embodiment of the present application.

[0025] Reference numerals:

[0026] 100- cabinet frame;

[0027] 110-reinforced beam; 120-positioning member; 130-avoidance portion; 140-connecting member;

[0028] 200-Liquid Cooling Plate;

[0029] 210-Interface piece;

[0030] 300-reinforcement frame;

[0031] 310-reinforcement frame; 320-reinforcement rod; 311-positioning groove.

[0032] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0033] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0034] The terms "first," "second," "third," "fourth," and so on (if any) in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the application described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0035] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0036] In the prior art, the energy storage box has an open cavity structure, and the battery module is placed and fixedly installed inside the energy storage box. A cooling liquid flow channel is provided on the side wall or bottom of the energy storage box to allow the flow of cooling liquid to cool the battery module. The energy storage box is provided with two interface pipes (water nozzles) protruding horizontally outward, and both interface pipes are connected to the cooling liquid flow channel. One of the two interface pipes is used to pass cooling liquid, and the other is used to discharge cooling liquid. In this way, the cooling liquid circulates in the cooling liquid flow channel, thereby cooling the battery module.

[0037] Currently, the interface tube is horizontally protruding outward, which facilitates the connection between the coolant pipe and the interface tube, and is beneficial to the installation and use of new energy batteries. However, since the interface tube is not blocked in energy storage boxes with this structure, the interface tube is prone to collision and damage during transportation. In the prior art, some energy storage boxes are equipped with a door-shaped bracket in front of the interface tube, and the door-shaped bracket is fixed to the side wall of the energy storage box; the door-shaped bracket protects the front end of the interface tube to prevent the interface tube from being damaged by collision during transportation. However, during the use of the energy storage box, the door-shaped bracket needs to be removed and is not a used component. Therefore, the provision of the door-shaped bracket increases the production cost of the energy storage box.

[0038] To solve the above problem, the inventors discovered that the location of the interface tube on the energy storage box can be changed to facilitate the transportation of the energy storage box.

[0039] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0040] Reference Figure 1 、 Figure 2 、 Figure 3 As shown, an energy storage liquid cooling box includes a box frame 100 and a liquid cooling plate 200 fixed below the box frame 100. The box frame 100 and the liquid cooling plate 200 form an installation cavity, which is used to install a battery module; a cooling liquid flow channel is provided in the cooling plate 200, and the cooling liquid flow channel has at least two cooling liquid ports communicating with the outside world. The cooling liquid ports are connected to an interface part 210, which is fixed to the upper surface of the liquid cooling plate 200. The interface part 210 is located outside the installation cavity and extends upward.

[0041] The energy storage liquid cooling box can adopt an integrated structure, for example, a box structure formed by casting molten aluminum alloy liquid. However, the energy storage liquid cooling box produced in this way has the problem of easy leakage of coolant. For this reason, the energy storage liquid cooling box of the present application adopts a split structure, which includes a box frame 100 and a liquid cooling plate 200 fixed under the box frame 100. The box frame 100 can adopt a frame made of aluminum alloy material, and the liquid cooling plate 200 can adopt a brazed liquid cooling plate 200. The bottom of the box frame 100 and the upper surface of the liquid cooling plate 200 are welded and fixed to form an installation cavity for installing the battery module. The volume of the installation cavity is set according to the number of battery modules and the volume of the battery modules. In the present application, the installation cavity is used to place double rows of eight battery modules.

[0042] In order to enable the energy storage liquid cooling box to achieve the purpose of circulating coolant, the present application is provided with a coolant flow channel in the liquid cooling plate 200. The structure of the coolant flow channel can adopt a conventional serpentine structure, a coil structure, etc. The structure of the coolant flow channel can also be set according to multiple factors such as the amount of coolant used and the cooling effect on the battery module. The coolant flow channel has at least two coolant ports that communicate with the outside world, and each coolant port is also connected to an interface part 210. The two interface parts 210 are respectively connected to the external coolant pipeline to realize the circulation of the coolant in the coolant flow channel, thereby achieving the purpose of cooling the battery module in the installation cavity.

[0043] In order to facilitate the transportation of the energy storage liquid cooling box, the present application fixes the interface component 210 on the upper surface of the liquid cooling plate 200, and is located outside the installation cavity and extends upward.

[0044] Specifically, refer to Figure 1 、 Figure 2 As shown, the box frame 100 is a vertically hollow rectangular frame structure, and the liquid cooling plate 200 is a rectangular plate structure. The box frame 100 and the liquid cooling plate 200 are fixed in an overlapping manner with the same length direction, and form an installation cavity. A cooling liquid flow channel is provided in the cooling plate 200 (the cooling liquid flow channel and the cooling plate 200 are integrally formed, not shown in the figure), and the cooling liquid flow channel is provided with two cooling liquid ports, and the two cooling liquid ports are provided near one of the short side walls of the cooling plate 200. Each cooling liquid port is connected to an interface part 210, and the interface part 210 adopts a tubular structure to facilitate the circulation of the cooling liquid.

[0045] In the present application, when the energy storage liquid cooling boxes are stacked up and down, the liquid cooling plate 200 of the energy storage liquid cooling box on the upper layer is placed on the box frame 100 of the energy storage liquid cooling box on the lower layer, and the liquid cooling plate 200 on the upper layer can cover the water receiving parts on the lower layer to avoid damage to the water receiving parts during transportation.

[0046] At the same time, the interface part 210 is located outside the installation cavity, which can also prevent the coolant from leaking from the interface position and affecting the use of the battery module.

[0047] In a possible implementation, the interface component 210 is located on the upper surface of the liquid cooling plate 200 and extends vertically upward.

[0048] It is understood that the interface member 210 can have various structures, such as a straight tubular structure, an L-shaped tubular structure, etc. Furthermore, the interface member 210 can be extended upwardly, either obliquely or vertically along the liquid cooling plate 200. Therefore, when the interface member 210 has different structures and extends upward in different ways, the interface member 210 and the liquid cooling plate 200 can be connected to form a variety of structures.

[0049] For example, when the interface member 210 adopts a straight tube structure, the interface member 210 can adopt two structures on the liquid cooling plate 200: extending obliquely upward or extending vertically upward.

[0050] For example, when the interface member 210 adopts an L-shaped tubular structure, any one end of the interface member 210 is connected to the coolant port, and the interface member 210 is also extended upward.

[0051] In this embodiment, factors such as the production cost and assembly difficulty of the interface component 210 are taken into consideration. Figure 1 、 Figure 2 As shown, the interface member 210 adopts a straight tube structure, and the lower end of the interface member 210 is vertically fixed to the upper surface of the liquid cooling plate 200, and the upper end of the interface member 210 extends upward.

[0052] In a possible implementation, the outer wall of the box frame 100 has at least two avoidance portions 130 , and the interface member 210 is disposed adjacent to the avoidance portions 130 .

[0053] It is understood that the interface member 210 is positioned near any short sidewall of the liquid cooling plate 200. To prevent the box frame 100 from interfering with the interface member 210, the liquid cooling plate 200 should theoretically be longer than the box frame 100. However, an excessively long liquid cooling plate 200 would increase the volume (length) of the entire energy storage liquid cooling box, increase the length of the entire new energy battery, and reduce the volumetric energy density of the new energy battery.

[0054] To solve the above problem, in this embodiment, an inwardly recessed avoidance portion 130 is provided on the outer wall of the box frame 100. The avoidance portion 130 provides a corresponding installation space for the interface component 210, thereby avoiding the problem of reducing the volume energy density of the new energy battery due to the excessive length of the liquid cooling plate 200.

[0055] The clearance portion 130 provides installation space for the interface member 210. To this end, the position and structure of the clearance portion 130 match the installation position and structure of the interface member 210. Exemplarily, the clearance portion 130 is a notch structure that can be provided on the outer wall of the box frame 100. The notch structure can be an arcuate notch, a square notch, or the like. The clearance portion 130 can be located at any location outside the short sidewall of the box frame 100.

[0056] In this embodiment, considering the structural stability of the box frame 100, refer to Figure 2 、 Figure 3As shown, the two relief portions 130 are angled structures formed on either side of the short side walls of the box frame 100. This structure of relief portions 130 not only provides mounting controls for water receiving components, ensuring the volumetric energy density of the new energy battery, but also enhances the strength of the box frame 100, reducing the risk of new energy battery drop tests.

[0057] In a possible implementation, a reinforcing crossbeam 110 is fixed inside the box frame 100 , and the reinforcing crossbeam 110 is used to divide the installation cavity into two chambers.

[0058] It is understandable that the mounting cavity of the present application is used to accommodate two rows of eight battery modules, so the box frame 100 needs to have sufficient strength. To this end, in this embodiment, a reinforcing crossbeam 110 is fixed within the box frame 100, and the reinforcing crossbeam 110 divides the mounting cavity into two chambers to facilitate the layout of the eight modules.

[0059] Specifically, such as Figure 2 As shown, the reinforcing crossbeam 110 is located between the two long sidewalls of the box frame 100 and is perpendicular to the inner wall of the box frame 100. The reinforcing crossbeam 110 divides the installation cavity into two chambers, allowing the installation cavity to accommodate two rows of eight battery modules. The reinforcing crossbeam 110 is arranged along the width of the box frame 100, which can increase the box frame 100's resistance to deformation along its length and enhance the overall strength of the box frame 100.

[0060] In a possible implementation, at least one connector 140 is provided on the box frame 100 , and the connector 140 is used to connect to the busbar of the battery module.

[0061] It is understood that when multiple battery modules are installed in the installation cavity, they will be connected using components such as wiring harnesses and busbars to achieve synchronous power supply for multiple battery modules. To this end, this embodiment provides at least one connector 140 on the box frame 100. This connector 140 cooperates with a cable tie to connect the busbar, wiring harness, and box frame 100, facilitating the installation of the wiring harness and busbar.

[0062] Specifically, such as Figure 2 As shown, in this embodiment, three connectors 140 are provided on the upper surface of one of the short side walls of the box frame 100, and two connectors 140 are provided on the outer side of the short side wall. The connectors 140 are in a door-shaped bracket structure, which facilitates the passage of cable ties for tying wire harnesses or busbars, facilitates the storage of battery module accessories, and facilitates subsequent maintenance of new energy batteries.

[0063] In a possible implementation, a reinforcement frame 300 is further included. The reinforcement frame 300 is located below the liquid cooling plate 200 and is connected to the liquid cooling plate 200 .

[0064] As will be appreciated, the liquid cold plate 200 of the present application utilizes a brazed liquid cold plate 200, which is generally composed of a brazing material and a cold plate material. Brazing material is a welding material primarily composed of metal components such as tin, lead, silver, copper, nickel, aluminum, zinc, gold, palladium, and platinum. Cold plate material is a type of sheet material, typically a low-carbon, low-alloy steel plate, primarily composed of elements such as iron, carbon, silicon, manganese, sulfur, and phosphorus, and exhibiting excellent formability and mechanical properties.

[0065] Although the liquid cooling plate 200 has good mechanical strength, in view of the large number of battery modules placed in the energy storage liquid cooling box of the present application, in order to further improve the load-bearing capacity of the liquid cooling plate 200, in this embodiment, a reinforcement frame 300 is provided under the liquid cooling plate 200, and the reinforcement frame 300 is used to increase the load-bearing capacity of the liquid cooling plate 200.

[0066] In a possible implementation, the reinforcement rack 300 includes a reinforcement frame 310 and a plurality of reinforcement rods 320 disposed in the reinforcement frame. The reinforcement frame 310 is attached to the liquid cooling plate 200 and fixed to the liquid cooling plate 200 .

[0067] Reference Figure 1 、 Figure 4 As shown, the reinforcement frame 310 is a rectangular frame structure that fits snugly around the liquid cooling plate 200. Multiple reinforcement rods 320 are located within the reinforcement frame 310 to increase its strength. The reinforcement frame 310 and the reinforcement rods 320 provide lateral and longitudinal support for the liquid cooling plate 200, increasing its resistance to deformation.

[0068] In a possible implementation, the reinforcing rods 320 are arranged in a staggered manner horizontally and vertically.

[0069] It is understood that the arrangement of the reinforcing rods 320 is to increase the resistance of the reinforcing frame 310 to deformation. To this end, the plurality of reinforcing rods 320 can be evenly distributed along the length direction of the reinforcing frame 310, or evenly distributed along the width direction of the reinforcing frame 310. Alternatively, the reinforcing rods 320 can be staggered in any manner within the reinforcing frame 310.

[0070] Specifically, such as Figure 2 、 Figure 4 As shown, in this embodiment, three reinforcement rods 320 are arranged along the length of the reinforcement frame 310, and nine reinforcement rods 320 are arranged along the width of the reinforcement frame 310. The reinforcement rods 320 are arranged in a staggered manner both horizontally and vertically. This arrangement of the reinforcement rods 320 not only facilitates the installation of the reinforcement rods 320 and the reinforcement frame 310, but also provides sufficient connection strength for the reinforcement frame 310, ensuring that the entire reinforcement frame 300 effectively supports the liquid cooling plate 200.

[0071] In a possible implementation, at least one positioning member 120 is provided on the box frame 100 , and the positioning member 120 is used to connect with a component provided above it.

[0072] Since the energy storage liquid cooling box of the present application is transported in an upper and lower stacking manner during transportation, it is convenient for the vertical positioning of each stacked energy storage liquid cooling box.

[0073] like Figure 2 As shown, the upper sidewall of the box frame 100 is provided with ten upwardly protruding positioning members 120. The positioning members 120 adopt a block-shaped structure and are divided into two groups, with five positioning members 120 in each group located at the upper end of the long sidewall of the box frame 100. The upwardly protruding positioning members 120 can be plugged into the energy storage liquid cooling box arranged above them to achieve vertical positioning of the stacked energy storage liquid cooling boxes.

[0074] In a possible implementation, at least one positioning groove 311 is provided on the reinforcement frame 310 , and the positioning groove 311 is used to connect with a component provided thereunder.

[0075] Similarly, in order to facilitate the positioning of the positioning member 120 of the energy storage liquid cooling box at the lower layer and the energy storage liquid cooling box at the upper layer, as shown in FIG. Figure 4 As shown, in this embodiment, positioning grooves 311 are provided on the lower surface of the reinforcing frame 310. The number of positioning grooves 311 is the same as the number of positioning members 120, which are both ten. The positioning grooves 311 and the positioning members 120 are distributed in a similar manner. The ten positioning grooves 311 are divided into two groups, and each group of five positioning grooves 311 is located on the lower surface of the long side wall of the reinforcing frame 310 and is recessed. When the two energy storage liquid cooling boxes are stacked up and down, the positioning members 120 of the lower energy storage liquid cooling box are just inserted into the positioning grooves 311 of the upper energy storage liquid cooling box, thereby realizing the vertical positioning of the two energy storage liquid cooling boxes and facilitating the stacking and transportation of each energy storage liquid cooling box.

[0076] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0077] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An energy storage liquid cooling box, characterized in that: It comprises a box frame (100) and a liquid cooling plate (200) fixed below the box frame (100), wherein the box frame (100) and the liquid cooling plate (200) form an installation cavity, and the installation cavity is used for installing a battery module; The liquid cooling plate (200) is provided with a cooling liquid flow channel, the cooling liquid flow channel having at least two cooling liquid ports communicating with the outside, the cooling liquid ports being connected to an interface component (210), the interface component (210) being fixed to the upper surface of the liquid cooling plate (200), The interface component (210) is located outside the installation cavity and extends upward.

2. The energy storage liquid cooling box according to claim 1, characterized in that: The interface component (210) is located on the upper surface of the liquid cooling plate (200) and extends vertically upward.

3. The energy storage liquid cooling box according to claim 2, characterized in that: The outer wall of the box frame (100) has at least two avoidance portions (130), and the interface member (210) is arranged correspondingly and adjacent to the avoidance portions (130).

4. The energy storage liquid cooling box according to claim 1, characterized in that: At least one connecting member (140) is provided on the box frame (100), and the connecting member (140) is used to connect a busbar of a battery module.

5. The energy storage liquid cooling box according to claim 1, characterized in that: A reinforcing crossbeam (110) is fixed inside the box frame (100), and the reinforcing crossbeam (110) is used to divide the installation cavity into two chambers.

6. The energy storage liquid cooling box according to any one of claims 1 to 5, characterized in that: It also includes a reinforcement frame (300), which is located below the liquid cooling plate (200) and connected to the liquid cooling plate (200).

7. The energy storage liquid cooling box according to claim 6, characterized in that: The reinforcement frame (300) includes a reinforcement frame (310) and a plurality of reinforcement rods (320) arranged in the reinforcement frame. The reinforcement frame (310) is fitted to the liquid cooling plate (200) and is fixed to the liquid cooling plate (200).

8. The energy storage liquid cooling box according to claim 7, characterized in that: The reinforcing rods (320) are arranged in a staggered manner in the horizontal and vertical directions.

9. The energy storage liquid cooling box according to claim 7, characterized in that: The reinforcement frame (310) is provided with at least one positioning groove (311), and the positioning groove (311) is used to connect with a component arranged below it.

10. The energy storage liquid cooling box according to claim 9, characterized in that: At least one positioning member (120) is provided on the box frame (100), and the positioning member (120) is used to connect with a component provided above the positioning member.

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