Self-circulation cooling system for electronic water pump and electronic water pump

Abstract

The invention discloses an electronic water pump self-circulation cooling system and an electronic water pump, the electronic water pump self-circulation cooling system comprises a pump body, the pump body comprises a pump shell, the pump shell is internally provided with a pump cavity, the pump cavity is internally provided with a separation seat, and a mounting heat dissipation space is formed below the separation seat; a liquid flow channel is formed above the separation seat, an output port and an input port are formed in the bottom of the separation seat, and the output port and the input port are both communicated with the liquid flow channel; the electric control board is mounted in the mounting heat dissipation space; the heat dissipation water tank is installed in the installation heat dissipation space and provided with a liquid inlet communicated with the output port and a liquid outlet communicated with the input port. The special installation heat dissipation space is arranged in the pump body, the electric control board and the heat dissipation water tank are integrated in the same space, compact space utilization and efficient heat exchange are achieved, water cooling circulation of a liquid flow channel can take away heat of the installation heat dissipation space, the working temperature of the electric control board is effectively reduced, and the service life of the electric control board is prolonged. The risk of electronic component damage caused by overheating is reduced, and the service life of the electronic control board is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic water pumps, and in particular to a self-circulating cooling system for an electronic water pump and an electronic water pump. Background Art

[0002] The automotive industry is undergoing technological innovation, especially in the areas of powertrain and thermal management. Traditional internal combustion engine vehicles increase power through turbocharging, while new energy vehicles achieve energy conservation and environmental protection through hybrid and pure electric drive. In this context, the use and importance of electronic water pumps as key components of automotive thermal management systems are becoming increasingly prominent. Electronic water pumps are mainly used in vehicle preheating systems, automotive engine cooling cycles, hydrogen fuel cell thermal management systems, new energy vehicle drive systems, and electric vehicle battery cooling systems. They use brushless motors to drive the impeller to rotate, increase the liquid pressure, realize the circulation of coolant, and thus effectively dissipate heat. Compared with traditional mechanical water pumps, electronic water pumps have the advantages of compact structure, easy installation, flexible control, reliable performance, low power consumption, and high efficiency.

[0003] However, the existing electronic water pump has a general heat dissipation effect on the electronic control board on the electronic water pump, which easily leads to a high temperature of the electronic control board and reduces the life of the electronic components on the electronic control board. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a self-circulating cooling system for an electronic water pump and an electronic water pump.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A self-circulating cooling system for an electronic water pump comprises: a pump body, including a pump casing, a pump cavity is arranged in the pump casing, a partition seat is arranged in the pump cavity, and a heat dissipation installation space is formed below the partition seat; a liquid flow channel is formed above the partition seat, and an output port and an input port are provided at the bottom of the partition seat, and the output port and the input port are both connected to the liquid flow channel; an electric control board is installed in the heat dissipation installation space; a heat dissipation water tank is installed in the heat dissipation installation space, and is provided with a liquid inlet connected to the output port and a liquid outlet connected to the input port.

[0007] Furthermore, a water outlet pipe and a water inlet pipe protruding downward are provided at the bottom of the partition seat, the output port is formed on the water outlet pipe, the input port is formed on the water inlet pipe, a water inlet clamp pipe and a water outlet clamp pipe are provided on the upper end of the heat dissipation water tank, the liquid inlet is formed on the water inlet clamp pipe, the liquid outlet is formed on the water outlet clamp pipe, the water outlet pipe is connected to the water inlet clamp pipe, and the water inlet pipe is connected to the water outlet clamp pipe.

[0008] Furthermore, the outer walls of the water outlet pipe and the water inlet pipe are both provided with an annular groove, and the upper ends of the water inlet clamping pipe and the water outlet clamping pipe are provided with an extension strip extending upward, and the extension strip is provided with a buckle protrusion for embedding into the annular groove.

[0009] Furthermore, the extension strips and buckle protrusions are arranged in a plurality of groups at intervals.

[0010] Furthermore, the outer peripheral walls of the water outlet pipe and the water inlet pipe are both provided with sealing grooves, and the sealing grooves are embedded with sealing rings.

[0011] Furthermore, an inner flow channel spirally extending from the liquid inlet toward the liquid outlet is formed in the heat dissipation water tank.

[0012] Furthermore, the heat dissipation water tank is provided with a curved and extended guide plate to form a spirally extended inner flow channel.

[0013] Furthermore, the electric control board is fixedly installed at the bottom of the partition seat, and the electric control board is provided with an avoidance hole for the water outlet pipe and the water inlet pipe to pass through.

[0014] Furthermore, the partition seat is provided with a connecting column, and the connecting column and the electric control board are provided with corresponding holes for connection and fixation by fasteners.

[0015] An electronic water pump comprises the self-circulating cooling system for the electronic water pump.

[0016] The present invention has the following beneficial effects:

[0017] By setting up a special installation and heat dissipation space inside the pump body, the electronic control board and the heat dissipation water tank are integrated in the same space, which realizes compact space utilization and efficient heat exchange, so that the water cooling cycle of the liquid flow channel can take away the heat of the installation and heat dissipation space, effectively reducing the working temperature of the electronic control board, reducing the risk of damage to electronic components due to overheating, and improving the life of the electronic control board. The liquid flow channel in the pump cavity and the coordination of the output port, liquid inlet, input port, and liquid outlet form a liquid cooling flow path, which can realize the circulation of coolant inside the electronic water pump and improve the heat dissipation efficiency.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the principle of the present invention;

[0021] Figure 2 is an internal cross-sectional view of the present invention;

[0022] Figure 3 It is a schematic diagram of the connection structure between the partition seat and the radiator water tank;

[0023] Figure 4 yes Figure 3 Schematic diagram of the decomposed state structure;

[0024] Figure 5 It is a schematic diagram of the internal structure of the radiator tank;

[0025] Figure 6 It is a schematic diagram of the exploded structure of the partition seat and the electric control board.

[0026] Legend:

[0027] Pump body 100, pump housing 110, pump chamber 111, partition seat 120, water outlet pipe 121, water inlet pipe 122, annular groove 123, sealing groove 124, sealing ring 125, connecting column 126, installation heat dissipation space 130, liquid flow channel 140, output port 141, input port 142, stator 150, mover 160, first sealing sleeve 170, second sealing sleeve 180, rotating shaft 190, impeller 191, cover 192;

[0028] Electric control panel 200, avoidance hole 210;

[0029] The heat dissipation water tank 300 , the liquid inlet 310 , the water inlet clamping pipe 311 , the liquid outlet 320 , the water outlet clamping pipe 321 , the extension strip 330 , the buckle protrusion 331 , the inner flow channel 340 , and the guide plate 350 . DETAILED DESCRIPTION

[0030] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Please refer to Figure 1 and Figure 2 A preferred embodiment of the present invention provides a self-circulating cooling system for an electronic water pump, comprising a pump body 100, an electric control board 200 and a heat dissipation water tank 300.

[0035] The pump body 100 includes a pump housing 110, a pump chamber 111 is provided in the pump housing 110, a partition seat 120 is provided in the pump chamber 111, and an installation heat dissipation space 130 is formed below the partition seat 120; a liquid flow channel 140 is formed above the partition seat 120, and an output port 141 and an input port 142 are provided at the bottom of the partition seat 120, and both the output port 141 and the input port 142 are connected to the liquid flow channel 140. A stator 150 and a mover 160 are installed above the separator 120. A first sealing sleeve 170 is provided on the inner side of the stator 150, and a second sealing sleeve 180 is provided on the outer side of the mover 160. A partial liquid flow channel 140 is formed between the first sealing sleeve 170 and the second sealing sleeve 180. The space between the first sealing sleeve 170 and the second sealing sleeve 180 is communicated with the output port 141. A rotating shaft 190 is provided through the center of the mover 160. The rotating shaft 190 is hollow to form a partial liquid flow channel 140. The center of the rotating shaft 190 is communicated with the input port 142. An impeller 191 is provided on the upper end of the rotating shaft 190, and a cover 192 is provided on the impeller 191.

[0036] The electric control board 200 is installed in the heat dissipation installation space 130 . The heat dissipation water tank 300 is installed in the heat dissipation installation space 130 . The heat dissipation water tank 300 is provided with a liquid inlet 310 communicating with the output port 141 and a liquid outlet 320 communicating with the input port 142 .

[0037] The present invention provides a self-circulating cooling system for an electronic water pump. By setting a special installation heat dissipation space 130 inside the pump body, the electric control board 200 and the heat dissipation water tank 300 are integrated in the same space, thereby realizing compact space utilization and efficient heat exchange. The heat dissipation water tank 300 has a large outer surface and is fully in contact with the hot air in the installation heat dissipation space 130, thereby greatly increasing the heat exchange area and the heat dissipation efficiency. The water cooling circulation of the liquid flow channel 140 can take away the heat of the installation heat dissipation space 130, effectively reducing the operating temperature of the electric control board 200, reducing the risk of damage to electronic components due to overheating, and increasing the life of the electric control board 200. By utilizing the cooperation of the liquid flow channel 140 in the pump cavity and the output port 141, the liquid inlet 310, the input port 142, and the liquid outlet 320, a liquid cooling flow path is formed, which can realize the circulation of the coolant inside the electronic water pump and improve the heat dissipation efficiency.

[0038] Reference Figures 1 to 4 In some embodiments of the present invention, a water outlet pipe 121 and a water inlet pipe 122 protruding downward are provided at the bottom of the partition seat 120, the output port 141 is formed on the water outlet pipe 121, and the input port 142 is formed on the water inlet pipe 122. A water inlet clamp 311 and a water outlet clamp 321 are provided on the upper end of the heat dissipation water tank 300, the liquid inlet 310 is formed on the water inlet clamp 311, and the liquid outlet 320 is formed on the water outlet clamp 321. The water outlet pipe 121 is connected to the water inlet clamp 311, and the water inlet pipe 122 is connected to the water outlet clamp 321, so that the heat dissipation water tank 300 is connected to the liquid flow channel 140 and the water flow is realized.

[0039] Reference Figures 1 to 4 In a further embodiment of the present invention, the outer walls of the water outlet pipe 121 and the water inlet pipe 122 are both provided with an annular groove 123, and the upper ends of the water inlet clamping pipe 311 and the water outlet clamping pipe 321 are provided with an extension strip 330 extending upward, and the extension strip 330 is provided with a snap protrusion 331 for embedding into the annular groove 123. The snap protrusion 331 is embedded into the annular groove 123 to realize the snap connection of the pipeline, thereby facilitating installation.

[0040] Reference Figures 1 to 4 In a further embodiment of the present invention, the extension strips 330 and the buckle protrusions 331 are arranged in a plurality of groups at intervals around each other, thereby achieving multi-position connection and improving the stability of the connection.

[0041] Reference Figure 4 In a further embodiment of the present invention, the outer walls of the water outlet pipe 121 and the water inlet pipe 122 are both provided with a sealing groove 124, and the sealing groove 124 is embedded with a sealing ring 125, thereby improving the sealing performance and preventing liquid leakage from damaging the electric control board 200.

[0042] Reference Figure 5In a further embodiment of the present invention, an inner flow channel 340 spirally extending from the liquid inlet 310 toward the liquid outlet 320 is formed in the heat dissipation water tank 300, thereby preventing the liquid in the liquid inlet 310 from flowing straight toward the liquid outlet 320. The spirally extending inner flow channel 340 makes the flow path of the liquid longer and covers a larger area, which can take away more heat and improve the heat dissipation efficiency.

[0043] Reference Figure 5 In a further embodiment of the present invention, the heat dissipation water tank 300 is provided with a curved and extended guide plate 350, which separates the liquid inlet 310 and the liquid outlet 320, thereby guiding the liquid to flow in a spiral in the heat dissipation water tank 300 to form a spirally extended inner flow channel 340. The heat dissipation water tank 300 is circular in shape as a whole.

[0044] Reference Figure 6 In a further embodiment of the present invention, the electric control board 200 is fixedly mounted on the bottom of the partition seat 120, so as to facilitate installation, and part of the heat can be transferred to the partition seat 120, which is more conducive to heat dissipation. The electric control board 200 is provided with an avoidance hole 210 for the water outlet pipe 121 and the water inlet pipe 122 to pass through, so as to avoid structural interference and play a certain positioning role for the electric control board 200.

[0045] Reference Figure 5 In a further embodiment of the present invention, the partition seat 120 is provided with a connecting column 126, and the connecting column 126 and the electric control board 200 are provided with corresponding holes to be connected and fixed by fasteners, thereby realizing the connection between the electric control board 200 and the partition seat 120, and the fasteners can be screws.

[0046] The present invention also provides an electronic water pump, comprising a self-circulating cooling system for the electronic water pump.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-circulating cooling system for an electronic water pump, characterized in that: include: A pump body (100) comprises a pump housing (110), wherein a pump cavity (111) is provided in the pump housing (110), wherein a partition seat (120) is provided in the pump cavity (111), wherein an installation heat dissipation space (130) is formed below the partition seat (120); a liquid flow channel (140) is formed above the partition seat (120), wherein an output port (141) and an input port (142) are provided at the bottom of the partition seat (120), wherein both the output port (141) and the input port (142) are in communication with the liquid flow channel (140); An electric control panel (200) is installed in the heat dissipation installation space (130); The heat dissipation water tank (300) is installed in the heat dissipation installation space (130), and is provided with a liquid inlet (310) communicated with the output port (141) and a liquid outlet (320) communicated with the input port (142).

2. The self-circulating cooling system for an electronic water pump according to claim 1, characterized in that: A water outlet pipe (121) and a water inlet pipe (122) protruding downward are provided at the bottom of the partition seat (120); the output port (141) is formed on the water outlet pipe (121); the input port (142) is formed on the water inlet pipe (122); a water inlet clamp pipe (311) and a water outlet clamp pipe (321) are provided at the upper end of the heat dissipation water tank (300); the liquid inlet (310) is formed on the water inlet clamp pipe (311); the liquid outlet (320) is formed on the water outlet clamp pipe (321); the water outlet pipe (121) is connected to the water inlet clamp pipe (311); and the water inlet pipe (122) is connected to the water outlet clamp pipe (321).

3. The self-circulating cooling system for an electronic water pump according to claim 2, characterized in that: The outer peripheral walls of the water outlet pipe (121) and the water inlet pipe (122) are both provided with an annular groove (123); the upper ends of the water inlet clamping pipe (311) and the water outlet clamping pipe (321) are provided with an upwardly extending extension strip (330); the extension strip (330) is provided with a buckle protrusion (331) for embedding into the annular groove (123).

4. The self-circulating cooling system for an electronic water pump according to claim 3, characterized in that: The extension strips (330) and the buckle protrusions (331) are arranged in a plurality of groups at intervals.

5. The self-circulating cooling system for an electronic water pump according to claim 2, characterized in that: The outer peripheral walls of the water outlet pipe (121) and the water inlet pipe (122) are both provided with sealing grooves (124), and the sealing grooves (124) are embedded with sealing rings (125).

6. The self-circulating cooling system for an electronic water pump according to claim 1, characterized in that: An inner flow channel (340) is formed in the heat dissipation water tank (300) and extends spirally from the liquid inlet (310) toward the liquid outlet (320).

7. The self-circulating cooling system for an electronic water pump according to claim 1, characterized in that: The heat dissipation water tank (300) is provided with a curved and extended flow guide plate (350) to form a spirally extended inner flow channel (340).

8. The self-circulating cooling system for an electronic water pump according to claim 2, characterized in that: The electric control panel (200) is fixedly mounted on the bottom of the partition seat (120), and the electric control panel (200) is provided with an avoidance hole (210) for the water outlet pipe (121) and the water inlet pipe (122) to pass through.

9. The self-circulating cooling system for an electronic water pump according to claim 8, characterized in that: The partition seat (120) is provided with a connecting column (126), and the connecting column (126) and the electric control board (200) are provided with corresponding holes so as to be connected and fixed by fasteners.

10. An electronic water pump, characterized in that: A self-circulating cooling system for an electronic water pump comprising the self-circulating cooling system for an electronic water pump as described in any one of claims 1 to 9.

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