Automobile water pump with cooling device

By integrating a coolant circulation shell and heat dissipation fins into the water pump housing, and combining a cross plate and rotating cooling rod design, the problem of insufficient water pump heat dissipation is solved, achieving efficient cooling, extending bearing life, and improving water pump durability and reliability.

CN121296514AInactive Publication Date: 2026-01-09QIANHE TIMES (JIANGSU) AUTOMOTIVE TECH CO LTD
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Patent Information

Application Number
CN202511595440.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2026-01-09
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing automotive water pumps rely on the circulation of the engine's main coolant and natural convection within the housing for heat dissipation. This results in bearings and seals being exposed to high temperatures for extended periods, leading to the accumulation of frictional heat, grease oxidation and seal hardening. This can easily cause bearing jamming and coolant leakage, affecting the water pump's lifespan and engine safety.

Method used

A coolant circulation shell and heat dissipation fins are integrated on the surface of the water pump housing to form a composite heat dissipation structure that combines active and passive cooling. By combining coolant circulation and forced airflow convection, and utilizing the synergistic work of the cross disk and rotating semiconductor cooling rod, active cooling and forced convection are achieved, increasing the heat dissipation area and efficiency.

Benefits of technology

It significantly reduces the temperature of the core components of the water pump, extends the lubrication life of the bearings, prevents the seals from hardening at high temperatures, improves the durability and reliability of the water pump under extreme operating conditions, and avoids the risk of premature scrapping.

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Abstract

The automobile water pump with the cooling device comprises a pump body, the pump body comprises a shell, a cooling mechanism is arranged on the surface of the pump body, a heat treatment assembly is arranged at the position close to the side face of the pump body, the cooling mechanism comprises a cold liquid circulation shell and heat dissipation fins, and the cold liquid circulation shell and the heat dissipation fins are attached to the surface of the shell. The heat treatment assembly comprises a treatment tank, a cross disc and a refrigeration rod are arranged in the treatment tank, cooperative work of the cross disc and the rotary semiconductor refrigeration rod is driven through gravity, high-temperature cooling liquid falls down from a spraying head and impacts the cross disc, gravitational potential energy of the cross disc is converted into rotary kinetic energy, and in the process, liquid flow is crushed and refined to increase the heat dissipation area; the rotating blades stir air to form forced convection, preliminary efficient evaporative cooling is achieved, accurate and rapid cooling is achieved under the dual action of active refrigeration and mechanical stirring of a semiconductor, and active refrigeration is achieved.
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Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to an automotive water pump with a cooling device. Background Technology

[0002] The car water pump is a core component of the engine cooling system. It is usually driven by the crankshaft via a belt. Its core function is to generate centrifugal force on the coolant through the rotation of the impeller, so that the high-temperature coolant in the engine water jacket can continuously circulate. After flowing through the radiator to complete heat exchange, it is pumped back to the engine, thereby maintaining the engine in the most suitable temperature range. Its stable operation is directly related to the engine's thermal efficiency, service life and emission control, and is a key device to ensure the normal operation of the vehicle.

[0003] In the prior art, publication number "CN111237194A" discloses an automotive water pump with a cooling device, comprising: a housing, a water pump shaft, an impeller, an inlet pipe, and an outlet pipe. The inlet pipe and outlet pipe are fixed to both sides of the housing. The impeller is disposed within the housing, and the water pump shaft is disposed within the impeller. The cooling device is disposed within the outlet pipe. A bushing is fitted onto the water pump shaft, and the bushing is located within the impeller. The impeller has six blades. This invention provides an automotive water pump with a cooling device. It has a simple structure and is easy to use. By providing a bushing, the internal shaft can be disassembled and replaced, and the blades can also be disassembled and replaced, increasing the service life of the water pump and improving its efficiency. The cooling device at the outlet pipe further enhances cooling efficiency.

[0004] However, existing technologies still have significant shortcomings, such as: In the aforementioned devices and existing technologies, traditional automotive water pumps rely entirely on the circulation of the engine's main coolant and natural convection within the housing for heat dissipation. However, the coolant flowing into the water pump is already at a high temperature, and the housing has a limited heat dissipation area. This results in the bearings and mechanical seals being in a high-temperature environment for extended periods. The lack of an independent cooling system causes frictional heat to accumulate continuously, accelerating the oxidation and failure of lubricating grease and the hardening of sealing rubber. This can easily lead to bearing jamming and coolant leakage, ultimately triggering the risk of engine overheating due to premature failure of the water pump. Summary of the Invention

[0005] The purpose of this invention is to provide an automotive water pump with a cooling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a car water pump with a cooling device, comprising a pump body, the pump body including a housing, a cooling mechanism provided on the surface of the pump body, and a heat treatment component provided near the side of the pump body; The cooling mechanism includes a coolant circulation shell and heat dissipation fins, both of which are attached to the surface of the shell. The heat treatment assembly includes a treatment tank, inside which are arranged cross plates and cooling rods.

[0007] Preferably, the bottom of the housing is provided with an impeller, and the top of the housing is provided with a connecting disc and a bearing.

[0008] Preferably, the cold liquid circulation shell is fitted onto the surface of the outer shell, and the two cooperate with each other. The interior of the cold liquid circulation shell is a cavity for the flow of cold liquid to cool the outer shell.

[0009] Preferably, the front of the coolant circulation shell is connected to a connecting plate, and the connecting plate is interconnected with the internal cavity of the coolant circulation shell, and the connecting plate is located between two heat dissipation fins.

[0010] Preferably, the outer shell surface is fixed with a circumferential array of fixing heads, and a limit rod is connected between two adjacent fixing heads, and the limit rods are all in contact with the surface of the cold liquid circulation shell, and the multiple limit rods play a limiting role for the cold liquid circulation shell.

[0011] Preferably, the bottom of the outer casing is fixed with a base, and the processing tank is located on the top surface of the base and close to the side of the outer casing.

[0012] Preferably, the cross discs are formed by intersecting each other, and the cross discs are connected to the bearings on the inner wall of the treatment tank, and the top surface of the treatment tank is provided with a spray head cover.

[0013] Preferably, a cooling rod is provided below the cross plate. The cooling rod is conical, and there is a gap between the bottom end of the cooling rod and the inner wall of the processing tank.

[0014] Preferably, the top surface of the cooling rod has blades arranged in a circumferential array, and the bottom of the cooling rod is provided with a sealing drive component.

[0015] Preferably, the front side of the connecting plate is provided with an inlet head and an outlet head, and the inlet pipe and outlet pipe are respectively connected to an inlet pipe and an outlet pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. By integrating a coolant circulation shell and heat dissipation fins on the surface of the water pump housing, a composite heat dissipation structure combining active and passive cooling is formed. The coolant circulation shell, as an active cooling unit, efficiently absorbs and removes the heat generated by the friction between the bearings and seals through convection heat transfer via the internally flowing coolant. The heat dissipation fins, as a passive cooling unit, utilize the airflow during vehicle operation for forced air cooling. This dual heat dissipation design can quickly and stably dissipate internal frictional heat and external environmental radiant heat, significantly reducing the operating temperature of the water pump's core components. This effectively extends the bearing lubrication life, prevents the seals from hardening at high temperatures, and fundamentally improves the water pump's durability and operational reliability under extreme conditions.

[0017] 2. The high-temperature coolant drawn from the water pump circulation shell is sent to the heat treatment assembly. Utilizing gravity to drive the cross disk and the rotating semiconductor cooling rod in synergy, the high-temperature coolant falls from the spray head, impacting the cross disk and converting its gravitational potential energy into rotational kinetic energy. This process not only breaks up and refines the liquid flow to increase the heat dissipation area, but the rotating blades also agitate the air to form forced convection, achieving initial high-efficiency evaporative cooling. Subsequently, the liquid forms a uniform thin liquid film along the surface of the rotating conical semiconductor cooling rod. Under the dual action of active cooling of the semiconductor and mechanical agitation, precise and rapid cooling is achieved, realizing active cooling, expanding the heat exchange surface, and optimizing fluid dynamics. The cooling efficiency far exceeds that of traditional static heat dissipation methods. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall device of the present invention; Figure 2 This is an isometric view of the device of the present invention; Figure 3 In this invention Figure 2 Enlarged view of part A; Figure 4 This is a front view of the device of the present invention; Figure 5 This is a schematic diagram of the independent structure of the pump body in this invention; Figure 6 This is a top view of the overall device of the present invention; Figure 7 This is a diagram of the internal structure of the processing tank in this invention; Figure 8 This is a structural diagram of the impeller in this invention.

[0019] In the diagram: 1. Pump body; 11. Casing; 12. Impeller; 13. Connecting plate; 14. Bearing; 2. Cooling mechanism; 21. Heat dissipation fins; 22. Coolant circulation shell; 23. Connecting plate; 24. Limiting rod; 25. Fixing head; 26. Inlet head; 27. Outlet head; 3. Heat treatment assembly; 31. Base; 32. Treatment tank; 33. Inlet pipe; 34. Outlet pipe; 35. Spray head cover; 36. Cooling rod; 37. Blade; 38. Sealing drive component; 39. Cross plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-8 The present invention provides a technical solution: Example 1: A car water pump with a cooling device: The pump body 1 includes a pump body 1, which includes a housing 11. An impeller 12 is located at the bottom of the housing 11, and a connecting plate 13 and a bearing 14 are located at the top of the housing 11. A cooling mechanism 2 is provided on the surface of the pump body 1, and a heat treatment component 3 is located near the side of the pump body 1. The water pump contains a high-speed rotating bearing 14 and a mechanical seal. Friction between these components generates additional heat. If the heat generated cannot be dissipated in time, the temperature of the water pump body will rise sharply. The water pump inlet is directly connected to the water jacket of the engine block and cylinder head, where the coolant temperature is the highest in the entire system. The water pump pumps this high-temperature liquid, and its housing, impeller 12, and other components are continuously heated. Furthermore, the water pump is usually installed at the front of the engine, close to high-temperature components such as the combustion chamber and exhaust manifold, and is subjected to intense radiant and conductive heat. Excessive temperature will accelerate the aging and failure of the grease in the bearing 14, leading to dry friction, jamming, or seizure of the bearing 14, causing the water pump to stop rotating and resulting in serious engine cylinder scoring. Therefore, a cooling device is needed. The water pump is cooled. Pump body 1 is the main component of the pump, consisting of a casing 11, impeller 12, connecting plate 13, and bearing 14. The casing 11 is the main structure of the pump, typically made of cast iron or aluminum alloy. It houses all internal components and provides the foundation for mounting and supporting the impeller 12, bearing 14, and other internal parts. The metal casing 11 also acts as a heat sink, dissipating internal heat. The impeller 12 is a fan wheel mounted at the end of the pump shaft, typically made of metal, engineering plastics, or composite materials. Made of a material, it has multiple curved blades 37. When the impeller 12 is driven to rotate at high speed by the pump shaft, the blades 37 do work on the coolant, giving it kinetic energy and speed, thereby generating centrifugal force. The bearing 14 is a precision mechanical part that supports the rotation of the pump shaft. It is usually a ball bearing 14 or a needle roller bearing 14. It precisely supports the rotating pump shaft and impeller 12 and keeps them in the correct position relative to the housing 11, preventing the impeller 12 from rubbing against the housing 11. The connecting plate 13 firmly fixes the water pump to the designated mounting surface of the engine block or cylinder head by bolts.

[0022] Cooling mechanism 2 includes a coolant circulation shell 11 and heat dissipation fins 21. Both the coolant circulation shell 11 and the heat dissipation fins 21 are attached to the surface of the shell 11. A coolant circulation shell 22 is fitted onto the surface of the shell 11, and the two fit together. The interior of the coolant circulation shell 11 is a cavity for coolant flow to cool the shell 11. Cooling mechanism 2 mainly cools the pump body 1 shell 11 through coolant and heat dissipation fins 21. The coolant is located inside the coolant circulation shell 22, and its flow inside can handle the heat on the shell 11. It is necessary to explain the coolant circulation shell 22 and the heat dissipation fins. All 21 are located on the surface of the outer casing 11. The main principle of heat dissipation is achieved by integrating a coolant circulation shell 22 and heat dissipation fins 21 on the surface of the outer casing 11, forming a composite heat dissipation principle. The coolant circulation shell 22 acts as an active cooling unit, efficiently absorbing and carrying away the heat transferred from the pump body 1 to the outer casing 11 through convective heat transfer via the internally flowing coolant. The heat dissipation fins 21 act as a passive cooling unit, significantly increasing the contact area between the outer casing 11 and the air, utilizing the airflow during operation for forced convection heat dissipation. This achieves the high efficiency of liquid cooling and the reliability of air cooling, quickly and stably dissipating the frictional heat generated by the bearing 14 and the seals, as well as external... The system effectively removes radiant heat from the environment, avoiding the risk of failure from a single cooling method. This significantly reduces the operating temperature of the core components of the water pump, thereby extending the lubrication life of the bearing 14, preventing the seals from hardening at high temperatures, and comprehensively improving the durability and stability of the water pump under extreme conditions. A connecting plate 23 is connected to the front of the coolant circulation housing 22, and the connecting plate 23 is interconnected with the internal cavity of the coolant circulation housing 22. The connecting plate 23 is located between two heat dissipation fins 21. An inlet head 26 and an outlet head 27 are respectively provided on the front of the connecting plate 23. The inlet pipe 33 and outlet pipe 34 are respectively connected to the inlet pipe 33 and outlet pipe 34. The outlet pipe 34 and the connecting plate 23 are located between the two heat dissipation fins 21 and are interconnected with the cavity inside the coolant circulation shell 22. The connecting plate 23 includes an inlet head 26 and an outlet head 27. The outlet head 27 is near the bottom and the inlet head 26 is near the top. Coolant is sent into the connecting plate 23 from the inlet head 26 and flows from top to bottom into the coolant circulation shell 22 for use. The liquid at the bottom of the coolant circulation shell 22 can be drawn out through the outlet head 27 to the heat treatment component 3 for heat dissipation treatment, ensuring that the treated liquid can be circulated back into the coolant circulation shell 22 for repeated use to achieve circulating cooling and temperature reduction.

[0023] The outer shell 11 has a circumferential array of fixed heads 25, and a limit rod 24 is connected between two adjacent fixed heads 25. The limit rods 24 are all in contact with the surface of the coolant circulation shell 22. The multiple limit rods 24 play a limiting role for the coolant circulation shell 22. It should be noted that the coolant circulation shell 22 is sleeved on the surface of the outer shell 11, and its position is limited by the fixed heads 25 and the limit rods 24. The limit rods 24 are circumferentially arrayed on the surface of the coolant circulation shell 22 and in contact with its surface. After the limit rods 24 are fixed between the fixed heads 25, the position of the coolant circulation shell 22 can be positioned.

[0024] Example 2: Based on Embodiment 1, the heat treatment assembly 3 includes a treatment tank 32. A base 31 is fixed to the bottom of the outer shell 11, and the treatment tank 32 is located on the top surface of the base 31, close to the side of the outer shell 11. Inside the treatment tank 32, there are intersecting discs 39 and cooling rods 36. The intersecting discs 39 are connected to the bearings 14 on the inner wall of the treatment tank 32. A spray head cover 35 is provided on the top surface of the treatment tank 32. The treatment tank 32 in the heat treatment assembly 3 is located on the top surface of the base 31, and the two are fixed to each other. Liquid drawn from the cold liquid circulation shell 22 enters the treatment tank 32 through the outlet pipe 34. After being processed by the treatment tank 32, the liquid re-enters the inlet head 26 through the inlet pipe 33, repeating this process to achieve recycling. Further, an intersecting disc 39 is provided near the top inside the treatment pipe, and the intersecting disc 39 is connected to the bearings 14 on the inner wall of the treatment tank 32. It can move inside the tank. When the liquid is sprayed from the spray head cover 35 at the top of the treatment tank 32, the liquid first falls onto the cross plate 39. The cross plate 39 rotates due to the gravity of the falling liquid, thereby driving the airflow. When the coolant falls from the spray head cover 35 and impacts the cross plate 39, the gravitational potential energy of the liquid is converted into rotational kinetic energy, driving the cross plate 39 to rotate continuously. This breaks up and refines the falling liquid flow to increase the heat dissipation surface area. On the other hand, the rotating blades 37 of the cross plate 39 agitate the air in the tank to form forced convection, accelerating the diffusion of heat from the liquid surface to the air. The waste heat of the liquid is converted into air flow energy through mechanical rotation. Enhanced evaporative cooling and rapid drop in liquid temperature are achieved without additional power devices. At the same time, the self-rotation of the cross plate 39 effectively prevents scale from depositing on the plate surface, ensuring long-term stable heat dissipation performance and significantly improving the thermal management efficiency and service life of the coolant circulation system.

[0025] Below the cross plate 39 is a cooling rod 36, which is conical in shape. There is a gap between the bottom of the cooling rod 36 and the inner wall of the processing tank 32. A circumferential array of blades 37 is arranged on the top surface of the cooling rod 36. A sealing drive element 38 is located at the bottom of the cooling rod 36. After passing through the cross plate 39, the liquid falls onto the conical cooling rod 36 and flows slowly downwards along the inclined surface of the cooling rod 36, falling into the collection chamber through the gap between the cooling rod 36 and the inner wall of the processing tank 32. The cooling rod 36 uses semiconductor refrigeration to cool the liquid. To further improve the cooling effect, a sealing drive element 38 is added to the cooling rod 36, which is equivalent to a motor with a sealed housing 11. This element controls the rotation of the cooling rod 36, thereby driving the blades 37 to move. Through semiconductor refrigeration... The rotary cooling mechanism 2 of rod 36 achieves efficient thermal management. After the liquid is dispersed by the cross disk 39, it falls onto the surface of the conical cooling rod 36. The semiconductor cooling chip actively absorbs heat through the Peltier effect to cool the surface of the rod. The rotary drive drives the cooling rod 36 to rotate at a constant speed. The inclined grooves on its surface and the blades 37 work together to form a uniform thin liquid film and extend the flow path, which greatly increases the heat exchange area and contact time. At the same time, the blades 37 stir and generate eddies to break the liquid boundary layer and enhance the heat exchange efficiency. It combines the triple principle of active cooling, mechanical expansion of heat exchange surface and fluid dynamics optimization, which improves the efficiency compared with the traditional static cooling method and can avoid local icing and blockage. It can achieve rapid and accurate temperature control under low temperature difference conditions, and is particularly suitable for precision systems with strict requirements for coolant temperature stability.

[0026] Working principle: The water pump contains high-speed rotating bearings and mechanical seals. The friction between these components generates additional heat. If this heat cannot be dissipated quickly enough, the pump's temperature will rise rapidly. The pump's inlet is directly connected to the engine block and cylinder head water jacket, where the coolant temperature is the highest in the entire system. The pump delivers this high-temperature liquid, continuously heating its casing, impeller, and other components. Furthermore, the water pump is typically installed at the front of the engine, close to the combustion chamber, exhaust manifold, and other high-temperature components, subjecting it to intense radiant and conductive heat. Excessive heat accelerates the aging and failure of the bearing grease, leading to dry friction, jamming, or seizure of the bearings. This causes the pump to stop rotating, potentially resulting in serious engine cylinder scoring. Therefore, cooling is necessary for the water pump. The pump body, consisting of the outer casing, impeller, and connecting plate, is the core component of the pump. The pump consists of components such as bearings. The housing is the main structure of the water pump, usually made of cast iron or aluminum alloy. It is the shell that houses all internal components and provides the foundation for the installation and support of internal components such as impellers and bearings. The metal housing itself also acts as a heat sink, conducting heat away from the internal parts. The impeller is a fan wheel installed at the end of the pump shaft. It is usually made of metal, engineering plastics, or composite materials and has multiple curved blades. When the impeller is driven to rotate at high speed by the pump shaft, the blades do work on the coolant, giving it kinetic energy and speed, thereby generating centrifugal force. The bearing is a precision mechanical part that supports the rotation of the pump shaft. It is usually a ball bearing or needle roller bearing. It precisely supports the rotating pump shaft and impeller and keeps them in the correct position relative to the housing, preventing the impeller from rubbing against the housing. The connecting plate firmly fixes the water pump to the designated mounting surface of the engine block or cylinder head with bolts. The cooling system primarily cools the pump casing using coolant and heat dissipation fins. The coolant, located within a circulating coolant housing, flows and dissipates heat from the casing. It's important to note that both the circulating coolant housing and the heat dissipation fins are located on the casing surface. This integration of the two structures creates a composite cooling principle. The circulating coolant housing acts as an active cooling unit, efficiently absorbing and carrying away heat transferred from the pump body to the casing via convection heat transfer through the internally flowing coolant. The heat dissipation fins, acting as a passive cooling unit, significantly increase the contact area between the casing and the air, utilizing the airflow during operation for forced convection cooling. This achieves the high efficiency of liquid cooling and the reliability of air cooling, quickly and stably dissipating heat generated by the bearings and seals. Frictional heat and external environmental radiation heat are discharged, and the risk of failure of a single cooling method is avoided. The operating temperature of the core components of the water pump is significantly reduced, thereby extending the bearing lubrication life, preventing the seals from hardening at high temperature, and comprehensively improving the durability and stability of the water pump under extreme conditions. The connecting plate is located between two heat dissipation fins and is interconnected with the cavity inside the coolant circulation shell. The connecting plate includes an inlet head and an outlet head. The outlet head is near the bottom and the inlet head is near the top. The coolant is sent into the connecting plate from the inlet head and flows into the coolant circulation shell from top to bottom for use. The liquid at the bottom of the coolant circulation shell can be drawn out through the outlet head to the heat treatment component for heat dissipation treatment, ensuring that the treated liquid can be circulated back into the coolant circulation shell for repeated use to achieve circulating cooling and temperature reduction. It is necessary to explain that the coolant circulation shell is fitted onto the outer shell surface, and its position is limited by the outer shell fixing head and the limiting rod. The limiting rod is circumferentially arrayed on the surface of the coolant circulation shell and contacts its surface. After the limiting rod is fixed between the fixing head and the outer shell, the position of the coolant circulation shell can be achieved. The treatment tank in the heat treatment assembly is located on the top surface of the base, and the two are fixed to each other. The liquid drawn out of the coolant circulation shell enters the treatment tank through the outlet pipe. After being processed by the treatment tank, the liquid re-enters the inlet head through the inlet pipe, and this process is repeated to achieve recycling. Further explanation: a cross plate is provided near the top inside the treatment pipe. The cross plate is connected to the bearing on the inner wall of the treatment tank and can move inside it. The liquid is sprayed from the spray head cover at the top of the treatment tank. Upon arrival, the liquid first falls onto the cross plate, which rotates due to the gravity of the falling liquid, thereby driving the airflow. When the coolant falls from the spray head cover and impacts the cross plate, the gravitational potential energy of the liquid is converted into rotational kinetic energy, driving the cross plate to rotate continuously. This process breaks up and refines the falling liquid flow, increasing the heat dissipation surface area. On the other hand, the rotating blades of the cross plate agitate the air inside the tank, creating forced convection and accelerating the diffusion of heat from the liquid surface into the air. The waste heat of the liquid is converted into airflow energy through mechanical rotation, achieving enhanced evaporative cooling and a rapid drop in liquid temperature without the need for an additional power unit. At the same time, the self-rotation of the cross plate effectively prevents scale from depositing on the plate surface, ensuring long-term and stable heat dissipation performance and significantly improving the thermal management efficiency and service life of the coolant circulation system. After passing through the cross-plate, the liquid falls onto the conical cooling rod. It flows slowly downwards along the inclined surface of the cooling rod and falls into the collection chamber through the gap between the cooling rod and the inner wall of the processing tank. The cooling rod uses semiconductor refrigeration to cool the liquid. To improve the cooling effect, a sealed drive component is added to the cooling rod, essentially a motor with a sealed housing, which controls the rotation of the cooling rod, thereby driving the blades. This semiconductor cooling rod rotary cooling mechanism achieves efficient thermal management. When the liquid is dispersed by the cross-plate and falls onto the surface of the conical cooling rod, the semiconductor cooling elements utilize the Peltier effect... Active heat absorption cools the surface of the rod. The rotating drive unit drives the cooling rod to rotate at a constant speed. The inclined grooves on its surface and the blades work together to form a uniform thin liquid film and extend the flow path, greatly increasing the heat exchange area and contact time. At the same time, the blades stir to generate eddies that break the liquid boundary layer and enhance heat exchange efficiency. It combines the triple principles of active cooling, mechanical expansion of heat exchange surface and fluid dynamics optimization, which improves the efficiency compared to the traditional static cooling method and can avoid local icing and blockage. It can achieve rapid and accurate temperature control under low temperature difference conditions, and is especially suitable for precision systems with strict requirements for coolant temperature stability. First, the heat from the pump casing is absorbed by the coolant flowing within the cold liquid circulation shell. The heated liquid is then pumped through the outlet into the spray device at the top of the treatment tank. As it falls, it impacts a cross-plate, causing it to rotate and break the liquid flow, driving air convection and completing initial evaporative cooling. Subsequently, the droplets fall onto the surface of a rotating conical semiconductor cooling rod. Under the synergistic effect of Peltier effect active cooling and spiral groove extension heat transfer, the liquid film temperature drops sharply. Finally, the cooled liquid collects in the collection chamber and is reinjected into the cold liquid circulation shell through the inlet to form a closed loop. This process integrates the principles of forced convection, phase change cooling, and active cooling, achieving full temperature control from pump body heat absorption and liquid-gas dual-state heat dissipation to deep cooling, ensuring that the core components of the pump are always within their optimal operating temperature range.

[0027] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car water pump with a cooling device, characterized in that: The pump body (1) includes a housing (11), a cooling mechanism (2) is provided on the surface of the pump body (1), and a heat treatment assembly (3) is provided near the side of the pump body (1). The cooling mechanism (2) includes a coolant circulation shell (11) and heat dissipation fins (21), both of which are attached to the surface of the shell (11). The heat treatment assembly (3) includes a treatment tank (32), and the treatment tank (32) is provided with a cross plate (39) and a cooling rod (36) inside.

2. The automotive water pump with a cooling device according to claim 1, characterized in that: The bottom of the housing (11) is provided with an impeller (12), and the top of the housing (11) is provided with a connecting plate (13) and a bearing (14).

3. A car water pump with a cooling device according to claim 1, characterized in that: The cool liquid circulation shell (22) is fitted onto the surface of the outer shell (11), and the two cooperate with each other. The interior of the cool liquid circulation shell (11) is a cavity for the flow of cool liquid to cool the outer shell (11).

4. A car water pump with a cooling device according to claim 1, characterized in that: The front of the coolant circulation shell (22) is connected to a connecting plate (23), and the connecting plate (23) is connected to the internal cavity of the coolant circulation shell (22), and the connecting plate (23) is located between two heat dissipation fins (21).

5. A car water pump with a cooling device according to claim 1, characterized in that: The outer shell (11) has a circumferential array of fixed heads (25), and two adjacent fixed heads (25) are connected by a limiting rod (24). The limiting rods (24) are all in contact with the surface of the cold liquid circulation shell (22), and the multiple limiting rods (24) play a limiting role for the cold liquid circulation shell (22).

6. A car water pump with a cooling device according to claim 1, characterized in that: The bottom of the outer shell (11) is fixed with a base (31), and the processing tank (32) is located on the top surface of the base (31) and the processing tank (32) is close to the side of the outer shell (11).

7. A car water pump with a cooling device according to claim 1, characterized in that: The cross discs (39) are formed by intersecting each other, and the cross discs (39) are connected to the bearings (14) on the inner wall of the treatment tank (32). The top surface of the treatment tank (32) is provided with a spray head cover (35).

8. A car water pump with a cooling device according to claim 1, characterized in that: A cooling rod (36) is provided below the cross plate (39). The cooling rod (36) is conical, and there is a gap between the bottom end of the cooling rod (36) and the inner wall of the processing tank (32).

9. A car water pump with a cooling device according to claim 1, characterized in that: The top surface of the cooling rod (36) has a circumferential array of blades (37), and the bottom of the cooling rod (36) is provided with a sealing drive (38).

10. A car water pump with a cooling device according to claim 4, characterized in that: The front of the connecting plate (23) is provided with an inlet head (26) and an outlet head (27), and the inlet pipe (33) and outlet pipe (34) are respectively connected to the inlet pipe (33) and the outlet pipe (34).

Citation Information

Patent Citations

  • Automobile water pump with cooling device

    CN111237194A