Controller heat dissipation water channel

Abstract

The invention discloses a controller heat dissipation water channel, and relates to the technical field of controller heat dissipation, the controller heat dissipation water channel comprises a lower shell, the two corners of the lower sides of the left and right ends of the lower shell are connected with mounting seats, the upper end of the lower shell is connected with an upper shell through bolts, and the bottom of an inner cavity of the lower shell is connected with a circuit board through bolts; a heat dissipation cavity is formed in the upper end of the upper shell in a front-back penetrating mode, a plurality of heat dissipation pieces are connected to the interiors of the left side and the right side of the upper end of the upper shell, and a collection piece is connected to the middle of the heat dissipation pieces. Cooling liquid absorbs heat in the circulation process and is dissipated through the cooling fins, the cooling liquid absorbs the heat in the heat absorption cavity and then is evenly distributed to the cooling fins through the communication pipeline, meanwhile, airflow in the heat dissipation cavity rapidly takes away the heat, an efficient heat exchange path is formed, local overheating is avoided, heat dissipation uniformity is improved, and long-time stable operation of the controller is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field related to controller heat dissipation, and particularly relates to a controller heat dissipation waterway. BACKGROUND

[0002] In the traditional controller heat dissipation design, a single air cooling or a simple fin structure is usually used for heat dissipation. However, due to the continuous increase in the power density of the electronic components inside the controller, the heat generation is significantly increased, and the traditional heat dissipation method is often difficult to meet the high-efficiency heat dissipation requirement.

[0003] The air cooling heat dissipation relies on the external air flow, and the heat dissipation efficiency is greatly affected by the ambient temperature. In addition, in a closed or high-temperature environment, the heat dissipation effect is easily reduced due to insufficient air flow. The early liquid cooling system has a complex structure, low cooling liquid circulation efficiency, and lacks collaborative optimization with air cooling, resulting in limited heat dissipation capacity.

[0004] In view of the above problems, the present application provides a high-efficiency, stable and easy-to-maintain composite heat dissipation scheme to solve the problems of insufficient heat dissipation efficiency and uneven heat exchange in the prior art, thereby meeting the heat dissipation requirement. SUMMARY

[0005] The purpose of the present application is to provide a controller heat dissipation waterway to solve the problems of insufficient heat dissipation efficiency and uneven heat exchange in the traditional controller heat dissipation design.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a controller heat dissipation waterway, comprising a lower shell, the lower shell is connected with a mounting seat at the lower side of both ends, the upper end of the lower shell is connected with an upper shell through bolts, the inner cavity bottom of the lower shell is connected with a circuit board through bolts, the upper end of the upper shell is penetrated by a heat dissipation cavity from front to back, the inner side of the upper end of the upper shell is connected with a plurality of heat dissipation fins, the middle of the plurality of heat dissipation fins is connected with a collection fin, and the collection fin is connected to the inner side of the center of the upper end of the upper shell.

[0007] Preferably, the lower side of the heat dissipation cavity is provided with a heat absorption cavity, and the heat absorption cavity is arranged in the inner side of the upper shell, a plurality of heat conduction columns are connected to the inner wall of the lower end of the heat absorption cavity, and a heat conduction cavity is arranged in the inner side of the lower end of each heat conduction column.

[0008] Preferably, the heat conduction cavity is arranged in the inner side of the upper end of the upper shell and is in communication with the inner side of the upper shell, a lower pump shell is connected to the center of the inner wall of the upper end of the heat absorption cavity, and a plurality of lower liquid guide grooves are arranged at the connection position between the lower pump shell and the inner wall of the lower end of the heat absorption cavity.

[0009] Preferably, the lower pump shell is in communication with the inner side of the heat absorption cavity through the plurality of lower liquid guide grooves, a plurality of communication pipelines are in communication with the left and right ends of the heat absorption cavity, and the other ends of the plurality of communication pipelines are in communication with the plurality of heat dissipation fins, respectively.

[0010] Preferably, a motor seat is connected to the center of the inner wall of the upper end of the upper shell, and a driving motor is arranged in the motor seat.

[0011] Preferably, the upper end pipe of the driving shaft penetrates into the heat dissipation cavity and the lower pump shell, extends into the collection sheet, and is rotatably connected in the heat dissipation cavity and the lower pump shell, and rubber sealing rings are arranged between the driving shaft and the heat dissipation cavity and the lower pump shell.

[0012] Preferably, a plurality of limiting rings are connected to the outside of the driving shaft, and the driving shaft is limited by the limiting rings, the heat dissipation cavity, the collection sheet and the lower pump shell, an upper pump cavity is formed in the upper end of the driving shaft, and a plurality of upper liquid guide grooves are formed in the lower end of the upper pump cavity.

[0013] Preferably, the collection sheet is communicated with the lower pump shell through the upper pump cavity and the plurality of upper liquid guide grooves, and a plurality of lower pump blades are connected to the lower side of the outside of the driving shaft, and are rotatably connected in the lower pump shell and located on the upper side of the plurality of lower liquid guide grooves.

[0014] Preferably, a plurality of heat dissipation blades are connected to the upper side of the outside of the driving shaft, and are rotatably connected in the heat dissipation cavity, and a spiral pump blade is arranged in the upper pump cavity and located on the upper side of the plurality of upper liquid guide grooves.

[0015] Compared with the prior art, the controller heat dissipation waterway has the following advantages

[0016] Advantages:

[0017] 1. The lower shell is provided with mounting seats at the lower sides of the two corners of the left and right ends, facilitating the fixed installation of the controller, and the upper shell and the lower shell are connected through bolts, forming a modular structure, facilitating assembly, disassembly and maintenance, and improving installation stability and maintenance convenience.

[0018] 2. The upper shell is provided with a plurality of heat dissipation fins on the upper end of the left and right sides, and is communicated with each other through the collection sheet, increasing the heat dissipation area, and utilizing the heat dissipation cavity to enhance air flow, the heat dissipation cavity penetrates through the front and rear, and cooperates with the heat dissipation blades to force air flow through the gap between the heat dissipation fins, enhancing air convection, avoiding heat accumulation, making the heat dissipation more efficient, improving the heat dissipation efficiency, and effectively reducing the internal temperature of the controller.

[0019] 3. The heat dissipation fins, the collection sheet, the heat absorption cavity, the communication pipeline, the pump shell and the liquid guide groove constitute a closed liquid cooling circulation channel, the cooling liquid absorbs heat in the circulation process and is dissipated through the heat dissipation fins, the cooling liquid is uniformly distributed to the heat dissipation fins through the communication pipeline after absorbing heat in the heat absorption cavity, and the heat dissipation cavity air flow quickly takes away heat, forming a high-efficiency heat exchange path, avoiding local overheating, improving heat dissipation uniformity, and ensuring long-term stable operation of the controller.

[0020] 4、The heat absorption cavity bottom is provided with a heat conduction column, a heat conduction cavity is arranged in the heat conduction column, the heat exchange area with the cooling liquid is increased, the heat conduction in the controller is accelerated, the heat exchange efficiency is improved, and the heat dissipation is faster and more uniform.

[0021] 5、The driving motor drives the lower pump blades and the spiral pump blades to push the cooling liquid to circulate, simultaneously drives the heat dissipation fan blades to accelerate the air flow in the heat dissipation cavity, realizes the double heat dissipation of liquid cooling and air cooling, significantly improves the heat dissipation efficiency, reduces the limitation of single heat dissipation mode, the driving motor centrally controls the heat dissipation fan blades, the pump blades and the spiral pump blades, simplifies the transmission structure, simultaneously realizes the synchronous operation of liquid cooling and air cooling, and improves the coordination and reliability of the heat dissipation system.

[0022] 6、The rubber sealing ring is arranged between the driving shaft and the heat dissipation cavity and the pump shell, and the limiting ring is arranged, so that the sealing performance of the cooling liquid circulation system is ensured, the leakage is prevented, the stability of the driving shaft operation is improved, and the service life of the equipment is prolonged. DETAILED DESCRIPTION

[0023] Figure 1 It is a three-dimensional structure schematic diagram of the controller of the application.

[0024] Figure 2 It is a three-dimensional sectional structure schematic diagram of the controller.

[0025] Figure 3 It is a right view sectional structure schematic diagram of the controller.

[0026] Figure 4 It is a schematic diagram of the upper shell connecting structure.

[0027] Figure 5 It is a schematic diagram of the heat absorption cavity connecting structure.

[0028] Figure 6 It is a schematic diagram of the heat dissipation cavity connecting structure.

[0029] Figure 7 It is a schematic diagram of the driving shaft connecting structure.

[0030] Figure 8 It is a schematic diagram of the Figure 7 amplification schematic diagram.

[0031] In the figure: 1, lower shell; 2, mounting seat; 3, upper shell; 4, circuit board; 5, heat dissipation cavity; 6, heat dissipation fin; 7, collection fin; 8, heat absorption cavity; 9, heat conduction column; 10, heat conduction cavity; 11, lower pump shell; 12, lower liquid guide groove; 13, communication pipeline; 14, motor seat; 15, driving motor; 16, driving shaft; 17, upper pump cavity; 18, lower pump blade; 19, heat dissipation fan blade; 20, upper liquid guide groove; 21, spiral pump blade. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0033] The present application provides a controller heat dissipation waterway as shown in Figures 1-5 The present application provides a controller heat dissipation waterway as shown in

[0034] The present application provides a controller heat dissipation waterway as shown in Figures 1-3As shown, the lower side of the heat dissipation cavity 5 is provided with a heat absorption cavity 8, and the heat absorption cavity 8 is opened in the inside of the upper shell 3, a plurality of heat conduction columns 9 are connected to the inner wall of the lower end of the heat absorption cavity 8, a plurality of heat conduction cavities 10 are opened in the inside of the upper end of the upper shell 3 and communicate with the inside of the upper shell 3, a lower pump shell 11 is connected to the center of the upper end inner wall of the heat absorption cavity 8, a plurality of lower liquid guide grooves 12 are opened at the connection between the lower pump shell 11 and the lower end inner wall of the heat absorption cavity 8, the lower pump shell 11 communicates with the inside of the heat absorption cavity 8 through the plurality of lower liquid guide grooves 12, a plurality of communication pipelines 13 are communicated with the left and right ends of the heat absorption cavity 8, the other ends of the plurality of communication pipelines 13 are respectively communicated with the plurality of heat dissipation fins 6, a motor seat 14 is connected to the center of the upper end inner wall of the upper shell 3, a driving motor 15 is arranged in the inside of the motor seat 14, a driving shaft 16 is rotatably connected to the center of the upper end of the driving motor 15, an upper pump cavity 17 is opened at the upper end of the driving shaft 16, a plurality of upper liquid guide grooves 20 are opened at the lower end outer side of the upper pump cavity 17, the collection piece 7 communicates with the lower pump shell 11 through the upper pump cavity 17 and the plurality of upper liquid guide grooves 20, in the process of dissipating heat for the controller, the plurality of heat dissipation fins 6 communicate with the heat absorption cavity 8 through the plurality of communication pipelines 13, and communicate with the upper pump cavity 17 through the collection piece 7, and then communicate with the lower pump shell 11 through the plurality of upper liquid guide grooves 20, and the lower pump shell 11 communicates with the inside of the heat absorption cavity 8 through the plurality of lower liquid guide grooves 12, so that the inside of the upper shell 3 is provided with a liquid cooling circulation channel composed of the heat dissipation fin 6, the collection piece 7, the heat absorption cavity 8, the lower pump shell 11, the lower liquid guide groove 12, the communication pipeline 13, the upper pump cavity 17 and the upper liquid guide groove 20, and the inside of the liquid cooling circulation channel is provided with circulating cooling liquid, which absorbs heat inside the controller, and then dissipates heat through the plurality of heat dissipation fins 6.

[0035] Among them, the hot gas inside the controller can increase the contact area between the plurality of heat conduction cavities 10 and the plurality of heat conduction columns 9, and increase the contact area between the plurality of heat conduction columns 9 and the cooling liquid, thereby improving the heat exchange efficiency between the controller and the cooling liquid, and the cooling liquid can increase the heat dissipation area through the plurality of heat dissipation fins 6, and improve the heat exchange efficiency with the external air through the plurality of heat dissipation fins 6.

[0036] As Figures 3-5As shown, the upper end of the drive shaft 16 is inserted into the heat dissipation cavity 5 and the lower pump shell 11, and extends into the collection sheet 7, and the drive shaft 16 is rotatably connected inside the heat dissipation cavity 5 and the lower pump shell 11, and rubber sealing rings are arranged between the drive shaft 16 and the heat dissipation cavity 5 and the lower pump shell 11, and a plurality of limiting rings are connected to the outside of the drive shaft 16, and the drive shaft 16 is limited by the limiting rings, the heat dissipation cavity 5, the collection sheet 7 and the lower pump shell 11, and a plurality of lower pump blades 18 are connected to the lower side of the outside of the drive shaft 16, and the plurality of lower pump blades 18 are rotatably connected inside the lower pump shell 11 and located on the upper side of the plurality of lower liquid guide grooves 12, and a plurality of heat dissipation blades 19 are connected to the upper side of the outside of the drive shaft 16, and the plurality of heat dissipation blades 19 are rotatably connected inside the heat dissipation cavity 5, and the spiral pump blades 21 are arranged inside the upper pump cavity 17, and the spiral pump blades 21 are located on the upper side of the plurality of upper liquid guide grooves 20. During the flow of the cooling liquid in the liquid cooling circulation channel, the driving motor 15 is started, the driving motor 15 drives the drive shaft 16 to rotate, and drives the plurality of lower pump blades 18 to rotate inside the lower pump shell 11 through the drive shaft 16, and drives the spiral pump blades 21 to rotate at the same time, so that the plurality of lower pump blades 18 and the spiral pump blades 21 push the cooling liquid downward, so that the upper pump cavity 17 can suck the cooling liquid inside the collection sheet 7 into the inside through the rotation of the spiral pump blades 21, and then guide it into the lower pump shell 11 through the plurality of upper liquid guide grooves 20. The cooling liquid in the lower pump shell 11 flows downward through the rotation of the plurality of lower pump blades 18, and is guided into the heat absorption cavity 8 through the plurality of lower liquid guide grooves 12, and the cooling liquid in the heat absorption cavity 8 can absorb the heat inside the controller through the plurality of heat conducting columns 9 and the plurality of heat conducting cavities 10, and then is guided into the plurality of heat dissipation fins 6 through the plurality of communication pipelines 13, and exchanges heat with the external air through the plurality of heat dissipation fins 6, thereby dissipating heat inside the controller. The cooling liquid entering the plurality of heat dissipation fins 6 will be collected in the collection sheet 7 and then guided into the upper pump cavity 17 through the collection sheet 7, so that the cooling liquid circulates and flows, and the cooling liquid can circulate and flow quickly in the liquid cooling circulation channel under the double drive of the plurality of lower pump blades 18 and the spiral pump blades 21, thereby improving the heat dissipation efficiency of the controller.

[0037] At the same time, the driving motor 15 drives the plurality of heat dissipation blades 19 to rotate inside the heat dissipation cavity 5 through the drive shaft 16, and pushes the air inside the heat dissipation cavity 5 upward through the rotation of the plurality of driving motors 15, so that the heat dissipation cavity 5 can suck the external air through the openings at the front and rear ends, and then blow it out between the plurality of heat dissipation fins 6, thereby increasing the air flow speed outside the plurality of heat dissipation fins 6 and improving the heat dissipation efficiency of the plurality of heat dissipation fins 6.

[0038] In addition, the driving motor 15 can drive the circulation of the cooling liquid and the flow of the external air by simultaneously driving the multiple lower pump vanes 18, the multiple heat dissipation vanes 19 and the spiral pump vanes 21, so that the controller can simultaneously perform the cooling and the air cooling, the heat dissipation efficiency of the controller is improved, and the stable operation of the controller is ensured.

[0039] Specifically, the heat dissipation of the controller is composed of three parts of a mechanical structure, a liquid cooling circulation system and an air cooling strengthening system. The mechanical structure includes the lower shell 1, the upper shell 3 and the mounting seat 2, and provides physical support and a sealed environment for the whole system. The liquid cooling circulation system is composed of the heat absorption cavity 8, the heat conduction column 9, the communication pipeline 13, the heat dissipation fins 6, the collection fins 7, the lower pump shell 11, the upper pump cavity 17 and other components, and forms a closed cooling liquid circulation path. The air cooling strengthening system is composed of the heat dissipation cavity 5, the driving motor 15, the driving shaft 16, the heat dissipation vanes 19 and the like, and is responsible for accelerating the air flow to enhance the heat dissipation efficiency.

[0040] The circuit board 4 as the core heat source of the controller generates heat in the working process, which is first transmitted to the lower shell 1 and the upper shell 3 through heat conduction. The heat conduction cavity 10 inside the upper shell 3 is designed to increase the contact area with the heat conduction column 9, and the increase of the contact area significantly improves the heat conduction efficiency. The heat conduction column 9 is immersed in the cooling liquid in the heat absorption cavity 8, forming an efficient heat conduction path. The heat is transmitted from the circuit board 4 to the cooling liquid through the upper shell 3, the heat conduction cavity 10, the heat conduction column 9, and finally completes the first heat exchange process.

[0041] The driving motor 15 is fixed at the center of the inner wall of the upper shell 3 through the motor seat 14, and the output shaft thereof is connected to the driving shaft 16. The driving shaft 16 simultaneously drives three key components: the lower pump vane 18, the spiral pump vane 21 and the heat dissipation vane 19.

[0042] When the lower pump vane 18 rotates in the lower pump shell 11 under the driving of the driving shaft 16, a downward pressure difference is generated, forcing the cooling liquid to flow from the lower pump shell 11 into the heat absorption cavity 8 through the lower liquid guide groove 12. At the same time, the rotation of the spiral pump vane 21 in the upper pump cavity 17 generates a downward suction force, which sucks the cooling liquid in the collection fins 7 into the upper pump cavity 17, and then injects it into the lower pump shell 11 through the upper liquid guide groove 20, forming a continuous pumping circulation. The double driving mechanism ensures the rapid flow of the cooling liquid in the whole circulation system, effectively improving the heat exchange efficiency.

[0043] Starting from the heat absorption cavity 8, the cooling liquid carries the heat absorbed from the heat conduction column 9, is introduced into each heat dissipation fin 6 through the communication pipeline 13 for heat dissipation, is introduced into the upper pump cavity 17 through the collection fins 7, obtains the power provided by the spiral pump vane 21, and then enters the lower pump shell 11 through the upper liquid guide groove 20 and obtains the kinetic energy provided by the lower pump vane 18 again. Subsequently, the cooling liquid returns to the inside of the heat absorption cavity 8 through the lower liquid guide groove 12.

[0044] The heat sink 6 adopts a high-density fin structure design, greatly increasing the contact area of the cooling liquid and air, and significantly improving the heat exchange capacity. When the cooling liquid flows in the heat sink 6, it transfers heat to the heat sink 6, and then the heat sink 6 dissipates heat to the surrounding air. The cooled cooling liquid flows back to the inside of the heat absorption cavity 8 through the collection sheet 7, the lower pump shell 11, the lower liquid guide groove 12, the upper pump cavity 17, and the upper liquid guide groove 20, completing a complete cycle. The entire liquid cooling circulation system forms a closed loop, ensuring that heat is continuously transferred to the outside.

[0045] The air cooling system and the liquid cooling system work together to further improve the heat dissipation efficiency. When the driving motor 15 drives the driving shaft 16 to rotate, the heat dissipation fan blade 19 rotates synchronously in the heat dissipation cavity 5. The rotating heat dissipation fan blade 19 exerts a pushing force on the air, forming an air flow path that sucks air from the openings at the front and rear ends of the heat dissipation cavity 5 and discharges it through the gaps between the heat sink 6. By forced convection, the air flow speed is significantly increased, and the increase in air flow speed greatly improves the heat dissipation efficiency of the heat sink 6.

[0046] The rubber sealing ring provided between the driving shaft 16 and the heat dissipation cavity 5 and the lower pump shell 11 effectively prevents the cooling liquid from leaking. The design of the limiting ring ensures that the driving shaft 16 remains stable during high-speed rotation, reducing vibration and wear. The structure of multiple heat sinks 6 interconnected through the collection sheet 7 not only optimizes the flow distribution of the cooling liquid, but also provides a redundant path, so that even if individual pipes are blocked, the system can still maintain basic heat dissipation functions.

[0047] The unique feature of this heat dissipation system is the cooperative working mechanism of liquid cooling and air cooling. The driving motor 15 simultaneously drives the liquid cooling circulation and the air cooling enhancement system. When the cooling liquid releases heat through the heat sink 6, the air cooling system simultaneously accelerates air flow, timely taking away the hot air on the surface of the heat sink 6, reducing the thermal resistance, so that the liquid cooling system can continuously and efficiently absorb heat. The flow characteristics of the cooling liquid in the system directly affect the heat dissipation efficiency, and the axial thrust of the lower pump fan blade 18 and the spiral pump blade 21 ensures that the cooling liquid smoothly enters the lower pump shell 11.

[0048] The controller heat dissipation channel realizes efficient heat management through innovative structural design and cooperative working mechanism. The liquid cooling circulation system transfers heat from the heat source to the heat sink 6 through the circulating flow of the cooling liquid, and the air cooling system accelerates heat dissipation through forced convection. The double driving mechanism ensures the rapid circulation of the cooling liquid, and the integrated design of the driving shaft 16 realizes the synchronous driving of liquid cooling and air cooling, improving the energy efficiency of the system.

[0049] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A controller cooling water channel, characterized in that, The device includes a lower shell (1), with mounting bases (2) connected to the lower corners of both the left and right ends of the lower shell (1). An upper shell (3) is bolted to the upper end of the lower shell (1). A circuit board (4) is bolted to the bottom of the inner cavity of the lower shell (1). A heat dissipation cavity (5) runs through the upper end of the upper shell (3) from front to back. Multiple heat sinks (6) are connected to the upper left and right sides of the upper shell (3). A collection plate (7) is connected in the middle of the multiple heat sinks (6), and the collection plate (7) is connected to the center of the upper end of the upper shell (3).

2. The controller cooling water channel as described in claim 1, characterized in that, A heat absorption cavity (8) is provided on the lower side of the heat dissipation cavity (5), and the heat absorption cavity (8) is opened inside the upper shell (3). Multiple heat-conducting columns (9) are connected to the lower inner wall of the heat absorption cavity (8), and a heat-conducting cavity (10) is opened inside the lower end of each of the multiple heat-conducting columns (9).

3. The controller cooling water channel as described in claim 2, characterized in that, The heat conduction cavity (10) is opened on the upper end of the upper shell (3) and communicates with the interior of the upper shell (3). The lower pump shell (11) is connected to the center of the upper inner wall of the heat absorption cavity (8). Multiple lower liquid guide grooves (12) are opened at the connection between the lower pump shell (11) and the lower inner wall of the heat absorption cavity (8).

4. The controller cooling water channel as described in claim 3, characterized in that, The lower pump housing (11) is connected to the heat absorption chamber (8) through multiple lower liquid guide grooves (12). Multiple connecting pipes (13) are connected to both the left and right ends of the heat absorption chamber (8). The other ends of the multiple connecting pipes (13) are connected to multiple heat sinks (6).

5. A controller cooling water channel as described in claim 4, characterized in that, A motor base (14) is connected to the center of the inner wall of the upper end of the upper shell (3). A drive motor (15) is installed inside the motor base (14). A drive shaft (16) is rotatably connected to the center of the upper end of the drive motor (15).

6. The controller cooling water channel as described in claim 5, characterized in that, The upper end tube of the drive shaft (16) passes through the heat dissipation cavity (5) and the lower pump housing (11) and extends into the collection plate (7). The drive shaft (16) is rotatably connected to the heat dissipation cavity (5) and the lower pump housing (11). Rubber sealing rings are provided between the drive shaft (16) and the heat dissipation cavity (5) and the lower pump housing (11).

7. A controller cooling water channel as described in claim 6, characterized in that, The drive shaft (16) is externally connected to multiple limiting rings, and the drive shaft (16) is limited by the multiple limiting rings to the heat dissipation cavity (5), the collecting plate (7) and the lower pump housing (11). The upper end of the drive shaft (16) is provided with an upper pump chamber (17), and the lower outer side of the upper pump chamber (17) is provided with multiple upper liquid guide grooves (20).

8. A controller cooling water channel as described in claim 7, characterized in that, The collecting plate (7) is connected to the lower pump housing (11) through the upper pump chamber (17) and multiple upper liquid guide grooves (20). Multiple lower pump blades (18) are connected to the lower side of the drive shaft (16), and the multiple lower pump blades (18) are rotatably connected inside the lower pump housing (11) and located on the upper side of multiple lower liquid guide grooves (12).

9. A controller cooling water channel as described in claim 8, characterized in that, Multiple heat dissipation fan blades (19) are connected to the upper side of the drive shaft (16), and the multiple heat dissipation fan blades (19) are rotatably connected inside the heat dissipation cavity (5). A spiral pump blade (21) is provided inside the upper pump cavity (17), and the spiral pump blade (21) is located on the upper side of multiple upper liquid guide grooves (20).

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