A new energy storage box

Abstract

The utility model relates to energy storage box body device technical field especially relates to a novel energy storage box, including panel assembly, and install the cold plate subassembly at the side of panel assembly, the bottom of cold plate subassembly is provided with the frame assembly of providing the support effect to it, cold plate subassembly includes liquid cooling plate main part, and the liquid inlet pipe and liquid outlet pipe of fixed mounting at its end, the utility model discloses through the liquid cooling plate is made of composite material, and through the brazing formation after stretching into the box shape, distinguish from the commonly used flat plate structure on market, structural strength is bigger, and the sealing is better, and the flatness etc. Performance and size precision are more optimal, reduce the product failure rate and cost, and through the frame main body of structural glue and bolt installation at its bottom, can promote the structural strength and installation stability of cold plate subassembly, protect internal liquid cooling passage simultaneously.

Description

Technical Field

[0001] This utility model relates to the technical field of energy storage box devices, and in particular to a novel energy storage box. Background Technology

[0002] During the use of battery packs, a liquid-cooled energy storage box is required. The liquid-cooled energy storage box is a key component used to support the battery modules and achieve liquid cooling heat dissipation. It can promptly remove the heat generated by the battery pack during use, thereby improving the performance of the battery pack.

[0003] Existing energy storage tanks are typically constructed using traditional welding or flat panel processing, resulting in numerous welds. This leads to a high risk of coolant leakage during long-term use, and issues such as weld burn-through and poor airtightness are common. Low dimensional accuracy also results in poor sealing of the liquid cooling channels, compromising their airtightness and causing coolant to seep out from cracks. This reduces the quality of the energy storage tanks, leading to a high defect rate and increased rework costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel energy storage tank that solves the technical problems of existing technologies damaging the sealing of the liquid cooling channel, causing coolant to seep out from cracks, posing a risk of coolant leakage, reducing the quality of the energy storage tank, resulting in a high defect rate and increased rework costs. The novel energy storage tank achieves the goal of using a liquid cooling plate made of composite material, which is stretched into a tank shape and then brazed, resulting in a structure with greater strength and better sealing compared to the commonly used flat plate structure on the market.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a novel energy storage box, including a panel assembly and a cold plate assembly installed on the side of the panel assembly. The bottom end of the cold plate assembly is provided with a frame assembly that provides support for it. The cold plate assembly includes a liquid-cooled plate body and an inlet pipe and an outlet pipe fixedly installed at its end. The top of the liquid-cooled plate body is provided with a modular beam structure that is evenly distributed. The liquid cooling plate body includes a stretching plate and a flow channel plate disposed at its bottom. Both the stretching plate and the flow channel plate are made of composite materials that are stretched into a box shape and then brazed. The stretching plate and the flow channel plate form a liquid cooling channel through brazing. The frame assembly includes a left beam and a right beam located on both sides of the bottom of the cold plate assembly. Multiple sets of side reinforcing beams and a middle reinforcing beam are provided between the left beam and the right beam. The liquid-cooled plate body and the frame assembly are connected by structural adhesive.

[0006] Preferably, the panel assembly is fixedly connected to the left and right beams by a number of blind rivets, and two holes are reserved at the panel assembly, in which the liquid inlet pipe and liquid outlet pipe are fixedly inserted.

[0007] Preferably, the liquid inlet pipe is connected to one end of the liquid cooling channel, and the liquid outlet pipe is connected to the other end of the liquid cooling channel. The liquid cooling channel is composed of multiple sub-channels, each sub-channel is distributed according to a preset arrangement rule, and the multiple sub-channels are irregular in shape.

[0008] Preferably, the modular beam structure is fixedly installed on the top of the liquid cooling plate body by a number of sealing rivet nuts.

[0009] Preferably, the side reinforcing beams are fixedly installed between the left and right beams, and multiple sets of intermediate reinforcing beams are evenly distributed between the two sets of side reinforcing beams. The side reinforcing beams, the multiple sets of intermediate reinforcing beams, and the left and right beams are solidified by welding.

[0010] Preferably, the cold plate assembly is bonded to the frame assembly as a whole by structural adhesive, and the cold plate assembly is recessed downward inside the left and right beams. The cold plate assembly and the frame assembly are fixedly connected by multiple sets of fixing bolts.

[0011] By employing the above technical solution, this utility model provides a novel energy storage box, which has at least the following beneficial effects: 1. This utility model uses a liquid cooling plate made of composite material, which is stretched into a box shape and then brazed. Unlike the commonly used flat plate structure on the market, it has greater structural strength, better sealing, and superior performance and dimensional accuracy such as flatness. This reduces the product defect rate and cost. Furthermore, by installing the frame body at the bottom with structural adhesive and bolts, the structural strength and installation stability of the cold plate assembly can be improved, while protecting the internal liquid cooling channel.

[0012] 2. This utility model consists of a frame assembly made of several roll-pressed side reinforcing beams and stamped intermediate reinforcing beams welded together. The side reinforcing beams and intermediate reinforcing beams are evenly distributed, which makes the stress more dispersed. At the same time, combined with the application of structural adhesive, less material is used, the cost is lower, the weight is lighter, and the stress is more dispersed. Compared with the existing commonly used square steel welded structure, it optimizes the contact between the frame assembly and the cold plate, avoids stress concentration, and is not prone to damage under vibration. Attached Figure Description

[0013] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall exploded structure of this utility model; Figure 3 This is an exploded view of the frame component of this utility model; Figure 4 This is an exploded view of the cold plate assembly of this utility model; Figure 5 This is a schematic diagram of the cold plate assembly structure of this utility model; Figure 6 This is a sectional view of one side of the cold plate assembly of this utility model; Figure 7 This is a schematic diagram of the liquid cooling channel structure of this utility model.

[0015] In the diagram: 1. Panel assembly; 11. Blind rivet 1; 2. Cold plate assembly; 21. Liquid cooling plate body; 211. Stretching plate; 212. Flow channel plate; 213. Liquid cooling channel; 22. Liquid inlet pipe; 23. Liquid outlet pipe; 24. Module beam structure; 241. Sealing rivet nut; 3. Frame assembly; 31. Left beam; 32. Right beam; 33. Side reinforcing beam; 34. Middle reinforcing beam; 341. Fixing bolt; 4. Structural adhesive. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Given the current practice of compromising the sealing of the channel, leading to coolant leakage through cracks and posing a risk of coolant leakage, this reduces the quality of the energy storage tank, resulting in a high defect rate and increased rework costs. This embodiment provides a novel energy storage tank where the liquid cooling plate is made of composite material, stretched into a tank shape, and then brazed. Unlike commonly used flat plate structures, this design offers greater structural strength and better sealing. Please refer to... Figure 1 - Figure 5This novel energy storage box includes a panel assembly 1, which is a sheet metal stamping and welding component. It is formed by sheet metal and mold stamping, resulting in a simple structure, low material usage, low cost, and high dimensional accuracy. Its main functions include fixing some electrical ports, high and low voltage outputs, and communication ports of the battery pack. It also includes a cold plate assembly 2 installed on the side of the panel assembly 1. The core function of the cold plate assembly 2 is to efficiently absorb and remove the heat generated by the charging and discharging of the battery through the circulation of coolant in the internal liquid cooling channel 213, thereby achieving precise heat dissipation of the battery. The bottom of the cold plate assembly 2 is provided with a frame assembly 3 to provide support. The cold plate assembly 2 includes a liquid cooling plate body 21, and an inlet pipe 22 and an outlet pipe 23 fixedly installed at its end. The top of the liquid cooling plate body 21 is provided with equidistantly distributed modular beam structures 24. During use, the liquid cooling medium first enters the interior of the liquid cooling channel 213 through the inlet pipe 22 and flows along the liquid cooling channel 213. Finally, it is discharged through the outlet pipe 23, and the cycle is repeated to achieve the effect of liquid cooling.

[0018] To solve problems such as manufacturing position accuracy, weld burn-through, poor flatness due to deformation, and poor airtightness, etc. Figure 1 - Figure 6 As shown, the liquid cooling plate body 21 includes a stretching plate 211 and a flow channel plate 212 disposed at its bottom. Both the stretching plate 211 and the flow channel plate 212 are made of composite materials and are brazed after being stretched into a box shape. The stretching plate 211 and the flow channel plate 212 form a liquid cooling channel 213 through brazing. The main feature of this liquid cooling plate body 21 is that the liquid cooling plate is made of composite materials. After being stretched into a certain shape, the stretching plate 211 and the flow channel plate 212 are brazed to form a sealed box structure. This sealed box is integrally formed, which can integrate the flow channel and the stretching plate 211 into a single structure, greatly reducing the number of welds, ensuring strength, and improving sealing reliability. It is different from the flat plate structure commonly used in the market. In addition, the module beam structure 24 is fixed to the two sets of cold liquid plates by riveting with several sealing rivet nuts 241, which is different from the welding structure fixed in the market. The structure has greater strength, better sealing, and better performance and dimensional accuracy such as flatness, reducing product defect rate and cost.

[0019] To improve the structural strength and installation stability of the cold plate assembly 2 during use, and to protect the internal liquid cooling channel 213 from damage during use, such as... Figure 1 - Figure 3 As shown, the frame assembly 3 includes a left beam 31 and a right beam 32 located on both sides of the bottom of the cold plate assembly 2. Multiple sets of side reinforcing beams 33 and a middle reinforcing beam 34 are arranged between the left beam 31 and the right beam 32. The side reinforcing beams 33 consist of a front reinforcing beam and a rear reinforcing beam; the one closer to the panel assembly 1 is the front reinforcing beam, and the other side is the rear reinforcing beam. See the attached diagram for details. Figure 2 and attached Figure 3The liquid cooling plate body 21 is connected to the frame assembly 3 by structural adhesive 4. The left beam 31, right beam 32, front reinforcing beam, rear reinforcing beam and several intermediate reinforcing beams 34 are welded together to form an integral frame with good structural rigidity, load-bearing capacity and seismic resistance. Good anti-corrosion requirements can be achieved through surface treatment such as electrophoresis.

[0020] Specifically, such as Figure 1 - Figure 2 As shown, panel assembly 1 is fixedly connected to left beam 31 and right beam 32 by several blind rivets 11. Two holes are reserved at panel assembly 1, and inlet pipe 22 and outlet pipe 23 are fixedly inserted into the holes. Blind rivets 11 are distributed on both sides and bottom of frame assembly 3 and panel assembly 1 to fix panel assembly 1 and frame assembly 3. The multi-faceted distribution improves the stability of the connection.

[0021] Example 2 To improve the uniformity of heat dissipation of the liquid cooling plate body 21, the liquid cooling channel 213 is optimized, such as... Figure 6 - Figure 7 The inlet pipe 22 is connected to one end of the liquid cooling channel 213, and the outlet pipe 23 is connected to the other end of the liquid cooling channel 213. The liquid cooling channel 213 is composed of multiple sub-channels, each of which is distributed according to a preset arrangement rule. The irregular shape of the liquid cooling channel 213 and its uniform distribution ensure that all areas of the liquid cooling plate body 21 are covered with coolant, avoiding excessive local temperature differences caused by concentrated flow channels. Since the cold plate assembly 2 is tightly attached to the bottom of the heat-generating element, it absorbs and carries away the heat generated by the heat-generating element. Traditional regular channels may have areas that cannot be covered at the corners. For some irregularly shaped and non-standard heat-generating elements, the flow channel plate 212 is stamped with a corresponding shape according to the outline of the non-standard heat-generating element, so that the irregular flow channels make up for the blind spots in the corners and irregularly shaped components, making heat dissipation more comprehensive.

[0022] like Figure 4 As shown, the modular beam structure 24 is fixedly installed on the top of the liquid cooling plate body 21 by a number of sealing rivet nuts 241. The multiple sets of modular beam structures 24 are evenly distributed in three sets on the top of the liquid cooling plate body 21 to improve the support strength of the top of the liquid cooling plate body 21.

[0023] Example 3 Based on Embodiment 1 and Embodiment 2, as follows Figure 1 - Figure 5As shown, the device also includes a frame assembly 3. Side reinforcing beams 33 are fixedly installed between the left beam 31 and the right beam 32. Multiple sets of intermediate reinforcing beams 34 are evenly distributed between the two sets of side reinforcing beams 33. The structure between the side reinforcing beams 33, the multiple sets of intermediate reinforcing beams 34 and the left beam 31 and the right beam 32 is solidified by welding. The frame assembly 3 is composed of several stamped side reinforcing beams 33 and intermediate reinforcing beams 34 through arc welding. The even distribution of the side reinforcing beams 33 and intermediate reinforcing beams 34 makes the stress more dispersed. At the same time, combined with the application of structural adhesive 4, less material is used, the cost is lower, and the weight is lighter. Compared with the commonly used square steel welded structure, the frame assembly 3 has poor contact with the cold plate, stress concentration, and is prone to damage under vibration.

[0024] Specifically, such as Figure 2 As shown, the cold plate assembly 2 is bonded to the frame assembly 3 as a whole by structural adhesive 4, and the cold plate assembly 2 is recessed downward inside the left beam 31 and the right beam 32. The cold plate assembly 2 and the frame assembly 3 are fixedly connected by multiple sets of fixing bolts 341. The structural adhesive 4 is evenly distributed. While ensuring the connection between the frame assembly 3 and the cold plate assembly 2, the multiple sets of fixing bolts 341 can improve the connection strength between the frame assembly 3 and the cold plate assembly 2, thereby increasing the strength while reducing the weight.

[0025] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel energy storage box, characterized in that: It includes a panel assembly (1) and a cold plate assembly (2) installed on the side of the panel assembly (1). The bottom end of the cold plate assembly (2) is provided with a frame assembly (3) that provides support for it. The cold plate assembly (2) includes a liquid cooling plate body (21) and an inlet pipe (22) and an outlet pipe (23) fixedly installed at its end. The top of the liquid cooling plate body (21) is provided with equidistantly distributed modular beam structures (24). The liquid cooling plate body (21) includes a stretching plate (211) and a flow channel plate (212) disposed at its bottom. Both the stretching plate (211) and the flow channel plate (212) are made of composite materials and are brazed after being stretched into a box shape. The stretching plate (211) and the flow channel plate (212) form a liquid cooling channel (213) through brazing. The frame assembly (3) includes a left beam (31) and a right beam (32) located on both sides of the bottom of the cold plate assembly (2). Multiple sets of side reinforcing beams (33) and middle reinforcing beams (34) are provided between the left beam (31) and the right beam (32). The liquid cooling plate body (21) and the frame assembly (3) are connected by structural adhesive (4).

2. The novel energy storage box according to claim 1, characterized in that: The panel assembly (1) is fixedly connected to the left beam (31) and the right beam (32) by a number of pull rivets (11), and two holes are reserved at the panel assembly (1), and the liquid inlet pipe (22) and the liquid outlet pipe (23) are fixedly inserted into the holes.

3. The novel energy storage box according to claim 1, characterized in that: The liquid inlet pipe (22) is connected to one end of the liquid cooling channel (213), and the liquid outlet pipe (23) is connected to the other end of the liquid cooling channel (213). The liquid cooling channel (213) is composed of multiple sub-channels, each sub-channel is distributed according to a preset arrangement rule, and the multiple sub-channels are irregular in shape.

4. The novel energy storage box according to claim 1, characterized in that: The modular beam structure (24) is fixedly installed on the top of the liquid cooling plate body (21) by a number of sealing rivet nuts (241).

5. The novel energy storage box according to claim 1, characterized in that: The side reinforcing beam (33) is fixedly installed between the left beam (31) and the right beam (32) on both sides. Multiple sets of intermediate reinforcing beams (34) are evenly distributed between the two sets of side reinforcing beams (33). The side reinforcing beams (33), multiple sets of intermediate reinforcing beams (34) are solidified with the left beam (31) and the right beam (32) by welding.

6. The novel energy storage box according to claim 1, characterized in that: The cold plate assembly (2) is bonded to the frame assembly (3) as a whole by structural adhesive (4), and the cold plate assembly (2) is recessed downward inside the left beam (31) and the right beam (32). The cold plate assembly (2) and the frame assembly (3) are fixedly connected by multiple sets of fixing bolts (341).

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