Water cooling device suitable for battery heat dissipation

Abstract

The utility model relates to a water cooling device suitable for heat dissipation of a battery, which comprises a shell, a water cooling device and a water cooling device, wherein an axially extending closed cavity is formed in the shell; the battery monomers are arranged at intervals in the axial direction of the closed cavity, and a heat dissipation channel is formed between every two adjacent battery monomers; the plurality of heat dissipation pipes are arranged on the peripheries of the plurality of battery monomers in a surrounding manner, and each heat dissipation pipe is provided with a water inlet end and a water outlet end; wherein the water inlet ends of all the heat dissipation pipes are fixed to the front end of the shell and communicate with the outside, and the water outlet ends of all the heat dissipation pipes are fixed to the rear end of the shell and communicate with the outside. The water flow continuously generated in the running process of the lake surface garbage cleaning robot can be used for continuously dissipating heat of the battery, the structure is simple and ingenious, the water flow is integrated on the shell for mounting the battery, the occupied space is small, the structure is compact, the use is convenient, and the heat dissipation efficiency of the battery can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of battery heat dissipation, and more specifically, to a water-cooling device suitable for battery heat dissipation. Background Technology

[0002] With the increasing severity of water pollution, the application of robots capable of automatically cleaning up lake debris is gradually expanding. Most existing robots rely on battery power for operation. Typically, the battery pack is installed at the bottom of the robot, and to prevent water ingress, the battery pack is sealed in its outer packaging. However, with prolonged operation, the sealed battery pack gradually heats up, and poor heat dissipation leads to a decrease in power, affecting the robot's efficiency and battery safety. Therefore, a heat dissipation design for the battery is necessary. Current battery cooling methods mostly involve adding large-area heat sinks to the outside of the battery or using fans for active cooling. However, heat sinks usually have high material requirements and are costly, while fan cooling requires significant space and structural space, resulting in unsatisfactory practical performance. Utility Model Content

[0003] In view of this, the present invention provides a water-cooling device with a simple structure that can use water flow to quickly dissipate heat from the battery.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A water-cooling device suitable for battery heat dissipation includes: a housing, the interior of which forms an axially extending sealed cavity; a plurality of battery cells, each battery cell being arranged at intervals along the axial direction of the sealed cavity, with heat dissipation channels formed between adjacent battery cells; and a plurality of hollow heat dissipation pipes, the plurality of heat dissipation pipes being arranged around the outer periphery of the plurality of battery cells, each heat dissipation pipe having an inlet end and an outlet end; wherein, the inlet ends of all the heat dissipation pipes are fixed to the front end of the housing and communicate with the outside, and the outlet ends of all the heat dissipation pipes are fixed to the rear end of the housing and communicate with the outside.

[0006] In the above technical solution, multiple hollow heat dissipation pipes are arranged around the outer periphery of the battery cell, forming an effective heat exchange path. The inlet and outlet ends of the heat dissipation pipes are fixed to the front and rear ends of the outer casing, respectively, and connected to the outside. Thus, when the lake-based garbage robot moves on the water surface, the water flow, driven by the robot's reverse inertial force, flows from the inlet end into the heat dissipation pipes, absorbing the heat generated by the battery cell, and then flows out from the outlet end, achieving rapid heat transfer and dissipation, thereby improving heat dissipation efficiency. Therefore, this invention can utilize the continuous water flow generated during the robot's movement to continuously dissipate heat from the battery. The structure is simple and ingenious, integrated into the battery casing, occupying little space, compact in structure, and easy to use, effectively improving the battery's heat dissipation efficiency.

[0007] Alternatively, in one possible implementation, the plurality of heat dissipation pipes include an upper water pipe and a lower water pipe, which are arranged alternately, with the upper water pipe located above the lower water pipe.

[0008] In the above technical solution, the alternating arrangement of the upper and lower water pipes makes the water flow path within the heat dissipation pipes more complex and varied, increasing the contact area and time between the water flow and the hot air surrounding the battery cells, thereby improving heat exchange efficiency. It also ensures the uniform distribution of the heat dissipation pipes around the battery cells, allowing each battery cell to receive sufficient cooling, helping to avoid localized overheating and extending battery life.

[0009] Alternatively, in one possible implementation, the axial extension path of the water inlet pipe passes sequentially through the front, top, and rear of the battery cell, and forms a U-shaped bend with an upward-facing opening within the heat dissipation channel.

[0010] In the above technical solution, the water inlet pipe can pass through the front, top and rear of the battery cell, ensuring that the water flow can fully contact multiple surfaces of the battery cell, which helps to avoid local overheating, extend the battery's service life and improve the overall performance of the battery pack.

[0011] Alternatively, in one possible implementation, the axial extension path of the drain pipe passes sequentially through the front, bottom and rear of the battery cell, and forms a U-shaped bend with the opening facing downward within the heat dissipation channel.

[0012] In the above technical solution, the drain pipe can pass through the front, bottom and rear of the battery cell, ensuring that the water flow can fully contact multiple surfaces of the battery cell. The drain pipe and the water inlet pipe work together to achieve balanced heat dissipation on multiple surfaces of the battery cell, which helps to reduce the temperature gradient inside the battery cell and improve the overall temperature consistency of the battery pack.

[0013] Alternatively, in one possible implementation, the water inlet ends of all the heat dissipation pipes are fixed to the front end face of the housing via a water inlet collector, and the water inlet collector is sealed to the housing.

[0014] In the above technical solution, the water inlet ends of all heat dissipation pipes are centrally installed on the water inlet manifold, which reduces the number of connection points, lowers the risk of leakage, and facilitates monitoring and maintenance. At the same time, the sealed connection between the water inlet manifold and the outer casing ensures the airtightness of the sealed cavity, preventing water from seeping into the interior of the sealed cavity and affecting the battery cells.

[0015] Optionally, in one possible implementation, the housing is provided with a filter plate, the filter plate is located in front of the water inlet collection section, and a slow-flow chamber is provided between the filter plate and the water inlet collection section.

[0016] In the above technical solution, the filter plate can block sediment and debris that may be present in the water flow, preventing them from entering the heat dissipation pipes and battery pack, thus protecting the heat dissipation system and battery pack from damage. Furthermore, the filter plate effectively removes sediment from the water flow, ensuring unobstructed pipe flow. Unobstructed water flow can more effectively improve heat dissipation efficiency while reducing blockages caused by sediment accumulation, which would otherwise reduce heat dissipation performance.

[0017] Alternatively, in one possible implementation, the outlet ends of all the heat dissipation pipes are fixed to the top of the rear end of the housing via an outlet collection section, which is sealed to the housing.

[0018] In the above technical solution, the water outlet collection part is set at the top of the rear end of the shell, which can ensure that the water can be smoothly and efficiently collected and discharged after flowing through the heat dissipation pipe, thereby improving the heat dissipation efficiency.

[0019] Alternatively, in one possible implementation, the housing includes an upper housing and a lower housing, which are detachably connected.

[0020] In the above technical solution, the detachable connection method of the upper and lower shells, such as bolt and nut fixing, snap locking, etc., makes the assembly and disassembly of the heat dissipation system simple and quick, which not only reduces the difficulty of production assembly, but also facilitates the later maintenance and repair work and improves work efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an exploded view of the overall structure of one embodiment.

[0023] Figure 2 This is an overall structural assembly drawing of one embodiment.

[0024] Reference numerals: 1-Outer shell; 11-Upper shell; 111-First protruding edge; 112-Water outlet mounting port; 12-Lower shell; 121-Second protruding edge; 122-Second screw hole; 123-Rubber sealing gasket; 2-Battery cell; 3-Heat pipe; 31-Water inlet pipe; 32-Water outlet pipe; 4-Water inlet collection section; 5-Filter plate; 6-Water outlet collection section. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] Please refer to Figure 1 and Figure 2 This embodiment provides a water-cooling device suitable for battery heat dissipation, including: a housing 1, the interior of which forms an axially extending sealed cavity; a plurality of battery cells 2, which are arranged at intervals along the axial direction of the sealed cavity, and heat dissipation channels are formed between adjacent battery cells 2; and a plurality of hollow heat dissipation pipes 3, which are arranged around the outer periphery of the plurality of battery cells 2, and each heat dissipation pipe 3 has a water inlet end and a water outlet end; wherein, the water inlet end of all heat dissipation pipes 3 is fixed to the front end of the housing 1 and communicates with the outside, and the water outlet end of all heat dissipation pipes 3 is fixed to the rear end of the housing 1 and communicates with the outside.

[0028] In this embodiment, multiple hollow heat dissipation pipes 3 are arranged around the outer periphery of the battery cell 2, forming an effective heat exchange path. The inlet and outlet ends of the heat dissipation pipes 3 are fixed to the front and rear ends of the outer casing 1, respectively, and are connected to the outside. Thus, when the garbage robot moves on the lake surface, water can flow into the heat dissipation pipes 3 from the inlet end, absorb the heat generated by the battery cell 2, and then flow out from the outlet end, realizing rapid heat transfer and dissipation, thereby improving heat dissipation efficiency. Therefore, this utility model can utilize the water flow continuously generated during the robot's movement to continuously dissipate heat from the battery. The structure is simple and ingenious, and it is integrated into the outer casing 1 where the battery is installed, occupying little space, with a compact structure, and is easy to use, effectively improving the battery's heat dissipation efficiency.

[0029] In this embodiment, the multiple heat dissipation pipes 3 include an upper water pipe 31 and a lower water pipe 32, which are arranged alternately, with the upper water pipe 31 located above the lower water pipe 32. Specifically, the heat dissipation pipes 3 extend along the axial direction of the sealed cavity, and there is a certain distance between the upper water pipe 31 and the lower water pipe 32.

[0030] The alternating arrangement of the upper water pipe 31 and the lower water pipe 32 makes the water flow path within the heat dissipation pipe 3 more complex and varied, increasing the contact area and time between the water flow and the hot air surrounding the battery cell 2, thereby improving heat exchange efficiency. It also ensures the uniform distribution of the heat dissipation pipe 3 around the battery cell 2, allowing each battery cell 2 to receive sufficient cooling, helping to avoid localized overheating and extending battery life.

[0031] In this embodiment, the axial extension path of the water inlet pipe 31 passes sequentially through the front, top, and rear of the battery cell 2, and forms an upward-facing "U"-shaped bend within the heat dissipation channel. Specifically, each battery cell has a cuboid structure. The water inlet pipe 31 extends from its water inlet end towards the front of the first battery cell 2, then bends upward and passes through the top of the first battery cell 2. It then makes a U-shaped bend when passing through the heat dissipation channel between two battery cells 2, and then passes through the top of the second battery cell 2. This process continues. If there are multiple battery cells 2, an upward-facing "U"-shaped bend is formed between each pair of adjacent battery cells 2, and finally extends from the top of the rear end of the outer casing 1.

[0032] In this embodiment, the water inlet pipe 31 can pass through the front, top, and rear of the battery cell 2, ensuring that the water flow can fully contact multiple surfaces of the battery cell 2, which helps to avoid local overheating, extend the battery's lifespan, and improve the overall performance of the battery pack.

[0033] In this embodiment, the axial extension path of the drain pipe 32 passes sequentially through the front, bottom, and rear of the battery cell 2, and forms a downward-facing "U"-shaped bend within the heat dissipation channel. Specifically, the drain pipe 32 extends from its inlet end towards the front of the first battery cell 2, then bends downward and passes through the bottom of the first battery cell 2, makes a U-shaped bend when passing through the heat dissipation channel between two battery cells 2, and then passes through the bottom of the second battery cell 2. This continues in sequence; if there are multiple battery cells 2, a downward-facing "U"-shaped bend is formed between each pair of adjacent battery cells 2, finally extending from the top of the rear end of the outer casing 1.

[0034] In this embodiment, the drain pipe 32 can pass through the front, bottom and rear of the battery cell 2, ensuring that the water flow can fully contact the multiple surfaces of the battery cell 2. The drain pipe 32 and the water pipe 31 work together to achieve balanced heat dissipation on the multiple surfaces of the battery cell 2, which helps to reduce the temperature gradient inside the battery cell 2 and improve the overall temperature consistency of the battery pack.

[0035] In this embodiment, the water inlet ends of all heat dissipation pipes 3 are fixed to the front end face of the outer casing 1 via the water inlet manifold 4, and the water inlet manifold 4 is sealed to the outer casing 1. Concentrating the water inlet ends of all heat dissipation pipes 3 on the water inlet manifold 4 reduces the number of connection points, lowers the risk of leakage, and facilitates monitoring and maintenance. Simultaneously, the sealed connection between the water inlet manifold 4 and the outer casing 1 ensures the airtightness of the sealed cavity, preventing water from seeping into the interior of the sealed cavity and affecting the battery cells 2.

[0036] In addition, the outer casing 1 of this embodiment is provided with a filter plate 5, which is located in front of the water inlet collection part 4, and there is a slow flow chamber between the filter plate 5 and the water inlet collection part 4. The filter plate 5 can be fixed to the outer casing 1 by bolts.

[0037] The filter plate 5 blocks sediment, debris, and other contaminants that may be present in the water flow, preventing them from entering the heat dissipation pipe 3 and the battery pack, thus protecting the heat dissipation system and battery pack from damage. Furthermore, the filter plate 5 effectively removes sediment from the water flow, ensuring unobstructed pipe flow. Unobstructed water flow improves heat dissipation efficiency and reduces blockages caused by sediment accumulation, which could lead to decreased heat dissipation performance.

[0038] In this embodiment, the outlet ends of all heat dissipation pipes 3 are fixed to the top rear end of the outer casing 1 via the outlet collection part 6, and the outlet collection part 6 is sealed to the outer casing 1. By placing the outlet collection part 6 at the top rear end of the outer casing 1, it can be ensured that the coolant can be smoothly and efficiently collected and discharged after flowing through the heat dissipation pipes 3, avoiding the retention and accumulation of coolant, optimizing the fluid discharge path, and improving heat dissipation efficiency.

[0039] In this embodiment, the outer casing 1 includes an upper casing 11 and a lower casing 12, which are detachably connected. Furthermore, a rubber sealing gasket 123 is provided at the connection between the upper casing 11 and the lower casing 12. A groove matching the rubber sealing gasket 123 is provided on the opposite side of the upper casing 11 and the lower casing 12. A sealing gasket is provided at the connection between the filter plate 5 and the upper casing 11 and the lower casing 12 to ensure airtightness. Specifically, the upper casing 11 is a square casing with an open bottom, and the edge of the bottom opening of the upper casing 11 has a first protruding edge 111 extending outwards. The lower casing 12 is a square casing with an open top, and the top opening of the lower casing 12 has a second protruding edge 121 extending outwards. The first protruding edge 111 and the second protruding edge 121 can be fixed by bolts. The first protruding edge 111 has multiple first screw holes (not shown in the figure) at its bottom. These first screw holes are blind holes. The second protruding edge 121 has second screw holes 122 corresponding to the first screw holes. These second screw holes 122 are through holes, through which bolts can pass and be fixed within the first screw holes. Furthermore, both the upper housing 11 and the lower housing 12 have semi-grooves at their front ends. Two semi-grooves can be joined together to form a water inlet mounting port for installing the water inlet manifold 4. The upper housing 11 also has an outlet mounting port 112 near its rear end for installing the water outlet manifold 6.

[0040] The detachable connection method of the upper shell 11 and the lower shell 12 in this embodiment, such as screw fixing and buckle locking, makes the assembly and disassembly of the heat dissipation system simple and quick. This not only reduces the difficulty of production assembly, but also facilitates later maintenance and repair work, and improves work efficiency.

[0041] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] 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 water cooling device suitable for battery heat dissipation, characterized in that, The application relates to a battery pack, comprising: a shell, an inner part of the shell being formed with an axially-extended closed cavity; a plurality of battery cells, each battery cell being arranged in axial spacing along the closed cavity, and a heat dissipation channel being formed between adjacent battery cells; a plurality of hollow heat dissipation pipes, the plurality of heat dissipation pipes being arranged around the outer periphery of the plurality of battery cells, the heat dissipation pipes having water inlet ends and water outlet ends; wherein the water inlet ends of all the heat dissipation pipes are fixed to the front end of the shell and are in communication with the outside, and the water outlet ends of all the heat dissipation pipes are fixed to the rear end of the shell and are in communication with the outside.

2. The water cooling device suitable for heat dissipation of a battery according to claim 1, characterized in that, The plurality of heat dissipation pipes comprise upper water pipes and lower water pipes, the upper water pipes and the lower water pipes being arranged alternately, and the upper water pipes being located above the lower water pipes.

3. The water cooling device suitable for heat dissipation of a battery according to claim 2, characterized in that, The axial extension path of the upper water pipes sequentially passes through the front part, the top part and the rear part of the battery cells, and forms a "U"-shaped bending part with the opening facing upwards in the heat dissipation channel.

4. The water cooling device suitable for heat dissipation of a battery according to claim 2, characterized in that, The axial extension path of the lower water pipes sequentially passes through the front part, the bottom part and the rear part of the battery cells, and forms a "U"-shaped bending part with the opening facing downwards in the heat dissipation channel.

5. The water cooling device suitable for heat dissipation of a battery according to claim 1, characterized in that, The water inlet ends of all the heat dissipation pipes are fixed to the front end face of the shell through a water inlet collecting part, and the water inlet collecting part is sealingly connected with the shell.

6. The water cooling device suitable for heat dissipation of a battery according to claim 5, characterized in that, A filter plate is arranged on the shell, the filter plate being located in front of the water inlet collecting part, and a slow-flow cavity being formed between the filter plate and the water inlet collecting part.

7. The water cooling device suitable for heat dissipation of a battery according to claim 1, characterized in that, The water outlet ends of all the heat dissipation pipes are fixed to the rear end top part of the shell through a water outlet collecting part, and the water outlet collecting part is sealingly connected with the shell.

8. The water cooling device suitable for heat dissipation of a battery according to claim 1, characterized in that, The shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected.

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