A current collector housing

Abstract

The utility model discloses a kind of current collectors, it is related to battery pack cooling technical field.The device includes shell body, shell body is formed by cooling pipe and water-cooling plate fixed block splicing combination, the inside of shell body is provided with the cooling unit of water-cooling plate cooling, cooling unit includes liquid inlet hole and guide piece;Liquid inlet hole is set in the inside of water-cooling plate fixed block, liquid inlet hole is communicated with cooling pipe;Guide piece is set in the inside of cooling pipe.The device is set in the inside of cooling pipe by guide piece, effectively slows down the flow speed of coolant in cooling pipe, increases the quantity of coolant into water-cooling plate, significantly improves the cooling effect of water-cooling plate, and further improves the cooling efficiency of battery pack, the horn-shaped liquid inlet of liquid inlet hole can reduce the local flow resistance of coolant into liquid inlet hole, reduce energy loss, so that coolant can more smoothly flow into water-cooling plate, further improve cooling effect, satisfy user demand.

Description

Technical Field

[0001] This utility model relates to the field of battery pack cooling technology, specifically to a current collector housing. Background Technology

[0002] With the rapid development of new energy technologies, battery packs, as core components of electric vehicles and energy storage devices, are of paramount importance in terms of performance and safety. During operation, battery packs generate a significant amount of heat. If this heat is not dissipated in time, it can lead to overheating, affecting battery charging and discharging efficiency, lifespan, and even posing safety hazards.

[0003] Existing battery packs are cooled by water-cooled plates. To cool multiple water-cooled plates simultaneously, cooling pipes are typically used to connect them. However, if the refrigerant flows too fast in the cooling pipes, the amount of refrigerant entering the water-cooled plates will be insufficient, affecting the cooling effect and thus failing to effectively reduce the temperature of the battery pack, which has limitations.

[0004] The reason for this problem is that when the refrigerant flows at high speed inside the cooling pipe, a large velocity gradient is formed at the connection between the cooling pipe and the inlet. According to Bernoulli's equation, the faster the flow velocity, the lower the pressure. This results in relatively low pressure on the refrigerant at the interface between the cooling pipe and the inlet. At the same time, due to the relatively small diameter of the inlet, under the impact of the high-speed flowing refrigerant, a large amount of refrigerant does not have time to enter the water-cooled plate through the inlet and continues to flow directly along the cooling pipe. This leads to a severe shortage of refrigerant entering the water-cooled plate, presenting significant technical limitations. Therefore, we propose a current collector shell to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a current collector housing that solves the problem that excessively fast refrigerant flow velocity within the cooling pipe leads to insufficient refrigerant entering the water-cooling plate, affecting the cooling effect of the water-cooling plate and thus failing to effectively reduce the temperature of the battery pack, thus presenting limitations.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a current collector housing, including a housing body, the housing body being assembled from a cooling pipe and a water-cooled plate fixing block, and a cooling unit being provided inside the housing body, the cooling unit including a liquid inlet and a guide;

[0007] The liquid inlet is located inside the water-cooled plate fixing block and communicates with the cooling pipe. The guide is located inside the cooling pipe and is used to slow down the flow rate of the coolant inside the cooling pipe and guide the coolant into the liquid inlet.

[0008] Preferably, the guide includes a fixing post and an arc-shaped cover;

[0009] The arc-shaped cover is fixedly assembled on the top of the fixed column, and the arc-shaped cover is used to prevent coolant residue from remaining on the top of the fixed column.

[0010] Preferably, the guide further includes a spiral guide bar;

[0011] The spiral guide strip is wound around the outer surface of the fixed column, and the spiral guide strip is fixedly assembled with the inner wall of the cooling pipe.

[0012] Preferably, the cooling pipe is fixedly fitted with clamping blocks at both ends, the clamping blocks having a trapezoidal cross-section, and the clamping blocks are used to engage with adjacent pipes.

[0013] Preferably, a fixing ring is provided on the outer surface of the cooling pipe, and the water-cooled plate fixing block is fixedly assembled with the fixing ring.

[0014] Preferably, a first positioning groove is provided on one side of the water-cooled plate fixing block, and a second positioning groove is provided on the other side of the water-cooled plate fixing block. The liquid inlet hole is opened inside the second positioning groove. The first positioning groove and the second positioning groove are used to provide positioning for the water-cooled plate during installation.

[0015] Preferably, the inlet of the liquid inlet is funnel-shaped, which is used to reduce the local flow resistance of the coolant entering the liquid inlet.

[0016] Preferably, the inner wall of the liquid inlet (21) is provided with a sealing ring, which is used to prevent coolant from flowing out from the gap.

[0017] This utility model discloses a current collector housing, which has the following beneficial effects: By setting a guide inside the cooling pipe, the device effectively slows down the flow speed of the coolant in the cooling pipe, increases the amount of coolant entering the water-cooling plate, significantly improves the cooling effect of the water-cooling plate, and thus improves the cooling efficiency of the battery pack. The funnel-shaped inlet of the liquid inlet can reduce the local flow resistance of the coolant entering the liquid inlet, reduce energy loss, and allow the coolant to flow into the water-cooling plate more smoothly, further improving the cooling effect and meeting the needs of users. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the side structure of the outer shell of this utility model;

[0021] Figure 3 This is a schematic diagram of the guide structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the liquid inlet hole structure of this utility model.

[0023] In the figure: 1. Outer shell; 11. Cooling pipe; 12. Water-cooled plate fixing block; 2. Cooling unit; 21. Liquid inlet; 22. Guide; 221. Fixing column; 222. Arc-shaped cover; 223. Spiral guide strip; 23. Locking block; 24. Fixing ring; 25. First positioning groove; 26. Second positioning groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. 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.

[0025] This application provides a current collector housing, which solves the problem that if the refrigerant flows too fast in the cooling pipe, the amount of refrigerant entering the water-cooling plate will be insufficient, affecting the cooling effect of the water-cooling plate and thus failing to effectively reduce the temperature of the battery pack, which has limitations.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] Example 1

[0028] This utility model discloses a current collector housing. According to the appendix... Figure 1 , 2 As shown, it includes an outer shell body 1, which is assembled from a cooling pipe 11 and a water-cooled plate fixing block 12. A cooling unit 2 is provided inside the outer shell body 1, which includes a liquid inlet 21 and a guide 22.

[0029] The liquid inlet 21 is located inside the water-cooled plate fixing block 12 and communicates with the cooling pipe 11. The guide 22 is located inside the cooling pipe 11 and is used to slow down the flow rate of the coolant inside the cooling pipe 11 and guide the coolant to the inside of the liquid inlet 21.

[0030] Both ends of the cooling pipe 11 are fixedly fitted with clamping blocks 23. The cross-section of the clamping blocks 23 is trapezoidal. The clamping blocks 23 are used to clamp with adjacent pipes. A fixing ring 24 is provided on the outer surface of the cooling pipe 11. The water-cooling plate fixing block 12 is fixedly assembled with the fixing ring 24. A first positioning groove 25 is opened on one side of the interior of the water-cooling plate fixing block 12, and a second positioning groove 26 is opened on the other side of the interior of the water-cooling plate fixing block 12. The liquid inlet hole 21 is opened inside the second positioning groove 26. The first positioning groove 25 and the liquid inlet hole 21 are opened inside the second positioning groove 26. The second positioning groove 26 is used to provide positioning for the water-cooled plate during installation. The inlet of the liquid inlet hole 21 is funnel-shaped, which is used to reduce the local flow resistance of the coolant entering the liquid inlet hole 21. The water-cooled plate is welded inside the water-cooled plate fixing block 12. A sealing ring is provided on the inner wall of the liquid inlet hole 21. The sealing ring is used to prevent the coolant from flowing out from the gap. The water-cooled plate water inlet pipe is movably inserted into the inside of the liquid inlet hole 21. The sealing ring abuts against the water-cooled plate water inlet pipe. The sealing ring is used to prevent the coolant from flowing out from the gap.

[0031] In this embodiment, the cooling pipe 11 and the water-cooled plate fixing block 12 are spliced ​​together by the fixing ring 24 to firmly connect the cooling pipe 11 and the water-cooled plate fixing block 12. The water-cooled plate is welded to the inside of the water-cooled plate fixing block 12. The first positioning groove 25 and the second positioning groove 26 inside the water-cooled plate fixing block 12 are used to accurately position the water-cooled plate to ensure accurate installation. The guide member 22, composed of the fixing post 221, the arc-shaped cover 222 and the spiral guide strip 223, is installed inside the cooling pipe 11, so that the spiral guide strip 223 is fixedly assembled with the inner wall of the cooling pipe 11, ensuring that the guide member 22 is stably fixed inside the cooling pipe 11, which can effectively reduce the flow rate of the coolant and guide the flow. The function of the coolant is to connect the coolant flow path through the trapezoidal clamps 23 at both ends of the cooling pipe 11 with the adjacent pipes, ensuring the sealing and stability of the connection and preventing coolant leakage. The water-cooled plate inlet pipe is movably inserted into the inside of the inlet hole 21, and the sealing ring at the end of the inlet pipe is tightly abutted against the inner wall of the inlet hole 21, ensuring that the coolant can flow smoothly into the water-cooled plate, while preventing the coolant from flowing out from the gaps. A water outlet pipe is provided on one side of the water-cooled plate to discharge the coolant that has risen in temperature.

[0032] Example 2

[0033] This utility model discloses a current collector housing, which, based on Embodiment 1, more specifically, is according to the appendix... Figure 1 , 3 As shown in Figure 4, the outer shell body 1 is composed of a cooling pipe 11 and a water-cooled plate fixing block 12. A cooling unit 2 is provided inside the outer shell body 1. The cooling unit 2 includes a liquid inlet hole 21 and a guide 22.

[0034] The liquid inlet 21 is located inside the water-cooled plate fixing block 12 and communicates with the cooling pipe 11. The guide 22 is located inside the cooling pipe 11 and is used to slow down the flow rate of the coolant inside the cooling pipe 11 and guide the coolant to the inside of the liquid inlet 21.

[0035] The guide 22 includes a fixed post 221 and an arc-shaped cover 222; the arc-shaped cover 222 is fixedly assembled on the top of the fixed post 221 and is used to prevent coolant residue from remaining on the top of the fixed post 221. The guide 22 also includes a spiral guide strip 223; the spiral guide strip 223 is wound around the outer surface of the fixed post 221 and is fixedly assembled with the inner wall of the cooling pipe 11.

[0036] In this embodiment, the spiral guide strip 223 in the guide member 22, with its spiral structure design, changes the original straight flow path of the coolant within the cooling pipe 11. When the coolant flows through the guide member 22, it needs to spiral along the trajectory of the spiral guide strip 223, significantly increasing the flow distance of the coolant within the cooling pipe 11. According to fluid mechanics principles, with a constant pipe cross-sectional area, the increase in flow distance reduces the flow velocity of the coolant, thereby effectively slowing down the flow speed of the coolant within the cooling pipe 11. Simultaneously, the spiral direction of the spiral guide strip 223 guides the coolant towards the inlet hole 21, allowing the coolant to flow more precisely towards the inlet hole 21, ensuring that the coolant can smoothly enter the water-cooling plate, and improving the quantity and efficiency of coolant entering the water-cooling plate.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A current collector housing, characterized in that, It includes an outer shell body (1), which is assembled from a cooling pipe (11) and a water-cooled plate fixing block (12). The outer shell body (1) is provided with a cooling unit (2) inside, which includes: A liquid inlet hole (21) is provided inside the water-cooled plate fixing block (12), and the liquid inlet hole (21) is connected to the cooling pipe (11); A guide (22) is disposed inside the cooling pipe (11) to slow down the flow rate of the coolant inside the cooling pipe (11) and guide the coolant to the inside of the inlet hole (21).

2. The current collector housing according to claim 1, characterized in that: The guide (22) includes; Fixed column (221); An arc-shaped cover (222) is fixedly mounted on the top of the fixing post (221) to prevent coolant residue from remaining on the top of the fixing post (221).

3. The current collector housing according to claim 2, characterized in that: The guide (22) also includes; A spiral guide bar (223) is wound around the outer surface of the fixed column (221), and the spiral guide bar (223) is fixedly assembled with the inner wall of the cooling pipe (11).

4. The current collector housing according to claim 1, characterized in that: The cooling pipe (11) is fixedly fitted with clamps (23) at both ends. The cross-section of the clamps (23) is trapezoidal. The clamps (23) are used to clamp with adjacent pipes.

5. A current collector housing according to claim 1, characterized in that: A fixing ring (24) is provided on the outer surface of the cooling pipe (11), and the water-cooled plate fixing block (12) is fixedly assembled with the fixing ring (24).

6. A current collector housing according to claim 1, characterized in that: A first positioning groove (25) is provided on one side of the water-cooled plate fixing block (12), and a second positioning groove (26) is provided on the other side of the water-cooled plate fixing block (12). The liquid inlet hole (21) is opened inside the second positioning groove (26). The first positioning groove (25) and the second positioning groove (26) are used to provide positioning for the water-cooled plate during installation.

7. A current collector housing according to claim 6, characterized in that: The inlet of the liquid inlet (21) is funnel-shaped, which is used to reduce the local flow resistance of the coolant entering the liquid inlet (21).

8. A current collector housing according to claim 1, characterized in that: The inner wall of the liquid inlet (21) is provided with a sealing ring, which is used to prevent coolant from flowing out from the gap.

Images