Automobile electronic water pump with cooling structure

Abstract

The present invention discloses an automotive electronic water pump with a cooling structure, and the present invention relates to the technical field of automotive electronic water pumps, including a pump body, a pump cover and a motor, the pump cover is bolted to the pump body, a coolant flow pipe is fixedly connected to the middle of one end of the pump cover away from the pump body, a coolant circulation channel is fixedly connected to the surface of the pump cover, and an air cooling mechanism is also included, the air cooling mechanism is installed on the surface of the pump body and on one side close to the pump cover, and the surfaces of the pump body and the pump cover are both installed with heat sinks in a circular array. The automotive electronic water pump with a cooling structure uses air cooling and liquid cooling at the same time through the air cooling mechanism and the heat dissipation mechanism, and combines with the liquid cooling circulation system, so as to comprehensively improve the cooling efficiency of the motor, and while the motor shaft drives the exhaust fan to rotate with the motor, the coolant flowing through the electronic water pump is also used to circulate and cool the water pump itself, so as to improve the cooling efficiency and make the electronic water pump have energy-saving effect.

Description

Technical Field

[0001] The invention relates to the technical field of automobile electronic water pumps, in particular to an automobile electronic water pump with a cooling structure. Background Art

[0002] With the rapid development of the automobile industry, the thermal management system of automobile engines has gradually become one of the key factors affecting automobile performance and reliability. As an important component of the automobile engine cooling system, the performance of the electronic water pump directly affects the heat dissipation effect of the engine and the reliability of the entire vehicle. Most of the existing automotive electronic water pumps lack an efficient self-cooling structure, which makes the water pump prone to overheating when running under high load, affecting the life and working stability of the water pump. Therefore, designing an automotive electronic water pump with a cooling structure can effectively improve its heat dissipation performance and extend the service life of the water pump, which is of great practical significance. Summary of the invention

[0003] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: an automotive electronic water pump with a cooling structure, comprising a pump body, a pump cover and a motor, the pump cover is bolted to the pump body, a coolant flow pipe is fixedly connected to the middle of one end of the pump cover away from the pump body, a coolant circulation channel is fixedly connected to the surface of the pump cover, and further comprising:

[0004] An air cooling mechanism, the air cooling mechanism is installed on the surface of the pump body and on one side close to the pump cover, the surfaces of the pump body and the pump cover are both installed with heat sinks in a circular array, an impeller is installed between the pump body and the pump cover, and the impeller is rotatably installed with the pump cover through a motor;

[0005] A heat dissipation mechanism, the heat dissipation mechanism is installed at one end of the pump body away from the pump cover, and the heat dissipation mechanism is installed at one end of the motor shaft for dissipating heat from the motor;

[0006] A liquid cooling circulation system, the liquid cooling circulation system is arranged on the inner side of the pump body and the pump cover, the liquid cooling circulation system is used to introduce cooling liquid into the pump body and the pump cover for cooling, and a filter assembly is installed in the middle of one end of the pump body facing the pump cover;

[0007] The air cooling mechanism includes a rectangular frame, which is fixedly installed on the pump body. The side of the rectangular frame facing away from the pump cover is centrally symmetrically embedded with an arc-shaped filter element. An air guide cavity is opened in a circular array on the inner wall of the pump body, and the air guide cavity is connected to the arc-shaped filter element through the rectangular frame. A double filter screen is installed in parallel on the inner side of the arc-shaped filter element, and the double filter screen is used for double filtering of the air entering the arc-shaped filter element.

[0008] Preferably, fan grooves are provided in a circular array on the inner side of the pump body and at one end away from the pump cover, and an annular groove is provided in the middle of one end of the pump body facing the pump cover. The heat sink is made of aluminum alloy, which has good thermal conductivity and corrosion resistance, and can ensure the long-term stable operation of the water pump in harsh environments.

[0009] Preferably, the heat dissipation mechanism includes a ring cover, which is bolted to the pump body, and an exhaust fan is rotatably installed on the inner side of the ring cover through a motor shaft, that is, the motor shaft passes through the pump body and the ring cover is connected to the exhaust fan, and the exhaust fan is rotatably installed through the motor and the ring cover, wherein the exhaust fan is an axial flow fan, which has the characteristics of large air volume and low noise, and wind holes are opened in a circular array on the inner wall of the ring cover, and the air guide cavity is connected with the inner side of the ring cover through the wind holes, and a dust cover is installed on the side of the ring cover away from the pump body, and the surface of the dust cover is a circular array of oblique air outlets.

[0010] Preferably, the side of the ring cover facing the pump body is provided with notches in a circular array, the ring cover is mounted in an engaging manner with the pump body through the notches and the heat sink, sealing rings are fixedly mounted around the side of the ring cover facing the pump body, the sealing rings are fitted against the pump body, a refrigeration plate is fixedly mounted in the middle of the side of the ring cover facing the pump body, and the exhaust fan is installed between the dust cover and the refrigeration plate through the ring cover.

[0011] Preferably, the filter assembly includes a filter ring, which is mounted in an annular groove and embedded in the pump body, and a concave filter ring is embedded in the surface of the filter ring facing away from the pump body, and the concave filter ring is mounted in an annular groove and in cooperation with the filter ring, and a spiral filter head is connected to the surface of the filter ring and the side away from the concave filter ring in a circular array, and the spiral filter head is spiral in shape as a whole.

[0012] Preferably, the filter holes on the concave filter ring, the filter ring and the spiral filter head have apertures that decrease in sequence, and the filter assembly as a whole is used to filter impurities in the coolant.

[0013] Preferably, the liquid cooling circulation system includes a flat ring cavity, which is opened inside the pump body and close to one end of the pump cover, that is, the flat ring cavity is opened at the other end of the motor shaft, and the diameter of the circular ring structure opened by the flat ring cavity is perpendicular to the axis of the pump body, and the inner edges of the flat ring cavity are chamfered, and a liquid inlet cavity is opened inside the pump body and close to the motor shaft. The spiral filter head is inserted into the pump body through the liquid inlet cavity, and a liquid outlet cavity is opened inside the pump body and away from the motor shaft. The liquid inlet cavity is connected with the liquid outlet cavity through the flat ring cavity.

[0014] Preferably, the liquid inlet cavity and the liquid outlet cavity are both opened in a spiral shape, which can increase the flow path of the coolant and improve the heat dissipation effect. The flat ring cavity is connected to the annular groove through the liquid inlet cavity, and the chamber between the impeller and the pump body is connected to the annular groove.

[0015] Preferably, a collecting chamber is opened inside the pump cover, and the collecting chamber is parallel to the flat ring chamber through the cooperation of the pump body and the pump cover, and an output valve is embedded and installed in a circular array inside the pump cover, and the output valve is connected to the collecting chamber, and the output valve is connected to the chamber between the pump cover and the impeller through the pump cover, and the output valve is connected to the flat ring chamber through the cooperation of the liquid outlet chamber and the collecting chamber, wherein the output valve corresponds to the blades on the impeller one by one.

[0016] Preferably, a backflow valve is embedded and installed in a circular array inside the pump cover, and the backflow valve and the output valve are installed in a cross shape inside the pump cover. The backflow valve is connected to the flat ring cavity through the collecting cavity and the liquid outlet cavity, and a solenoid valve is installed on the impeller in a centrally symmetrical shape.

[0017] The present invention provides an automotive electronic water pump with a cooling structure, which has the following beneficial effects:

[0018] 1. The automotive electronic water pump with a cooling structure directly cools one end of the motor shaft by a refrigeration plate, and as the exhaust fan rotates with the rotation of the motor, the suction force generated can suck air from the arc filter element into the rectangular frame, and after being filtered by the double filter screens, the air enters the air guide cavity, and under the guidance of the connection between the air guide cavity and the air hole, the air is introduced from the air hole into the inner side of the ring cover, and finally, under the blowing action of the exhaust fan, the air carrying the heat inside the pump body is discharged from the oblique air outlet on the dust cover, thereby realizing the heat dissipation and cooling function of the end of the motor shaft away from the pump cover.

[0019] 2. The automotive electronic water pump with a cooling structure can not only use the cooling plate to cool the end of the motor shaft away from the pump cover, but also use the circular array-shaped open cavity structure design of the air guide cavity inside the pump body, combined with the airflow generated by the exhaust fan, to take away the heat from the motor housing, that is, the inside of the pump body, and form a flowing air-cooled heat dissipation system inside the pump body. Combining the above-mentioned structural design, under the dual effects of fitting refrigeration and agitating the surrounding flow of air, the heat dissipation and cooling effect of the heat inside the pump body is achieved, the motor is prevented from overheating, the electronic water pump is ensured to work normally, and the service life of the electronic water pump is extended.

[0020] 3. The automotive electronic water pump with a cooling structure has an air guide cavity, a liquid inlet cavity and a liquid outlet cavity all opened in a circular array inside the pump body. The heat generated by the motor inside the pump body and transferred to the surroundings can be evenly exchanged to the outside of the electronic water pump, thereby realizing all-round cooling and heat dissipation function of the electronic water pump and eliminating the heat dissipation blind spots of the electronic water pump.

[0021] Fourth, the automotive electronic water pump with a cooling structure can perform double filtering on the airflow passing through the arc filter element through the double filter screens installed in the arc filter element, thereby preventing foreign matter from following the airflow into the arc filter element and blocking the air guide cavity, and also preventing the air holes from being blocked, thereby ensuring that the exhaust fan can operate normally inside the ring cover driven by the motor shaft, thereby ensuring the normal operation and use of the electronic water pump.

[0022] 5. The automotive electronic water pump with a cooling structure activates the solenoid valve while the coolant flows on the inner side of the pump cover to guide the coolant into the space between the impeller and the pump body, so that after the coolant is filtered through the filter assembly, it flows into the collecting chamber from the liquid outlet chamber with the help of the collecting guidance of the liquid inlet chamber in the flat ring chamber, and then flows back into the chamber between the impeller and the pump cover through the collecting chamber with the help of the output valve. The heat inside the pump body, that is, the end of the motor shaft close to the pump cover, can be entrained and taken away by the circulating flow of the coolant inside the pump body, that is, the heat inside this part of the pump body, thereby further improving the cooling efficiency of the motor, and using the coolant for active cooling to enhance the heat dissipation effect of the motor.

[0023] 6. The automotive electronic water pump with a cooling structure uses an air cooling mechanism in conjunction with a heat dissipation mechanism and a liquid cooling circulation system to use air cooling and liquid cooling simultaneously to comprehensively improve the cooling efficiency of the motor. While the motor shaft drives the exhaust fan to rotate with the motor, the coolant flowing through the electronic water pump is used to circulate and cool the water pump itself, thereby improving the cooling efficiency and making the electronic water pump energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the external structure of an automotive electronic water pump with a cooling structure according to the present invention;

[0025] Figure 2 It is a schematic diagram of the disassembled structure of an automotive electronic water pump with a cooling structure according to the present invention;

[0026] Figure 3 It is a schematic diagram of the internal structure of the pump body and the pump cover of the present invention;

[0027] Figure 4 It is a schematic diagram of the partial assembly structure of the liquid cooling circulation system and the pump body of the present invention;

[0028] Figure 5 It is a schematic diagram of the partial assembly structure of the air cooling mechanism and the pump body of the present invention;

[0029] Figure 6 It is a schematic diagram of the disassembled structure of the heat dissipation mechanism and the pump body of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the ring cover and the sealing ring of the present invention;

[0031] Figure 8 It is a schematic diagram of the partial assembly structure of the arc-shaped filter element and the pump body of the present invention;

[0032] Fig. 9 It is a schematic diagram of the partial assembly structure of the ring cover and the pump body of the present invention;

[0033] Fig.10 It is a schematic diagram of the partial disassembly structure of the filter assembly and the pump body of the present invention;

[0034] Fig.11 It is a schematic diagram of the partial assembly structure of the output valve and the pump cover of the present invention;

[0035] Fig.12 It is a schematic diagram of the internal structure of the pump cover of the present invention.

[0036] In the figure: 1. pump body; 2. pump cover; 3. coolant circulation pipeline; 4. coolant circulation channel; 5. air cooling mechanism; 6. heat dissipation mechanism; 7. impeller; 8. filter assembly; 9. liquid cooling circulation system; 11. heat sink; 12. fan groove; 13. annular groove; 51. rectangular frame; 52. arc filter element; 53. air guide cavity; 521. double filter screen; 61. ring cover; 62. exhaust fan; 63. air hole; 64. dust cover; 65. notch; 66. sealing ring; 67. refrigeration plate; 81. filter ring; 82. concave filter ring; 83. spiral filter head; 91. flat ring cavity; 92. liquid inlet cavity; 93. liquid outlet cavity; 94. collecting cavity; 95. output valve; 96. backflow valve; 97. solenoid valve. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0038] The first embodiment, as Figures 1 to 12 As shown, the present invention provides a technical solution: an automotive electronic water pump with a cooling structure, comprising a pump body 1, a pump cover 2 and a motor, the pump cover 2 is bolted to the pump body 1, a coolant flow pipe 3 is fixedly connected to the middle of one end of the pump cover 2 away from the pump body 1, a coolant circulation channel 4 is fixedly connected to the surface of the pump cover 2, and further comprising:

[0039] The air cooling mechanism 5 is installed on the surface of the pump body 1 and close to the pump cover 2. The surfaces of the pump body 1 and the pump cover 2 are both provided with heat sinks 11 in a circular array. An impeller 7 is installed between the pump body 1 and the pump cover 2, and the impeller 7 is rotatably installed with the pump cover 2 through a motor;

[0040] A heat dissipation mechanism 6, which is mounted on one end of the pump body 1 away from the pump cover 2, and the heat dissipation mechanism 6 is mounted on one end of the motor shaft for dissipating heat from the motor;

[0041] A liquid cooling circulation system 9 is arranged inside the pump body 1 and the pump cover 2. The liquid cooling circulation system 9 is used to introduce cooling liquid into the pump body 1 and the pump cover 2 for cooling. A filter assembly 8 is installed in the middle of one end of the pump body 1 facing the pump cover 2;

[0042] The air cooling mechanism 5 includes a rectangular frame 51, which is fixedly installed on the pump body 1. The side of the rectangular frame 51 facing away from the pump cover 2 is symmetrically embedded with an arc-shaped filter element 52. An air guide cavity 53 is opened in a circular array on the inner wall of the pump body 1, and the air guide cavity 53 is connected to the arc-shaped filter element 52 through the rectangular frame 51. A double filter screen 521 is installed in parallel on the inner side of the arc-shaped filter element 52. The double filter screen 521 is used for double filtering of the air entering the arc-shaped filter element 52.

[0043] A fan groove 12 is provided in a circular array on the inner side of the pump body 1 and at one end away from the pump cover 2. An annular groove 13 is provided in the middle of the end of the pump body 1 facing the pump cover 2. The heat sink 11 is made of aluminum alloy, which has good thermal conductivity and corrosion resistance, can ensure the long-term stable operation of the water pump in harsh environments, can effectively increase the heat dissipation area of ​​the pump body 1, and improve the heat dissipation efficiency.

[0044] The heat dissipation mechanism 6 includes an annular cover 61, which is bolted to the pump body 1, and an exhaust fan 62 is rotatably installed on the inner side of the annular cover 61 through the motor shaft, that is, the motor shaft passes through the pump body 1, and the annular cover 61 is connected to the exhaust fan 62, and the exhaust fan 62 is rotatably installed with the annular cover 61 through the motor, wherein the exhaust fan 62 is an axial flow fan, which has the characteristics of large air volume and low noise, and can reduce the noise level of the whole vehicle while ensuring the heat dissipation effect, and air holes 63 are opened in a circular array on the inner wall of the annular cover 61, and the air guide cavity 53 is connected with the inner side of the annular cover 61 through the air holes 63, and a dust cover 64 is installed on the side of the annular cover 61 away from the pump body 1, and the surface of the dust cover 64 is a circular array of oblique air outlets.

[0045] A circular array of notches 65 are provided on one side of the ring cover 61 facing the pump body 1. The ring cover 61 is mounted in conjunction with the pump body 1 through the notches 65 and the heat sink 11. A sealing ring 66 is fixedly installed around the side of the ring cover 61 facing the pump body 1. The sealing ring 66 is fitted closely to the pump body 1. A refrigeration plate 67 is fixedly installed in the middle of the side of the ring cover 61 facing the pump body 1. The exhaust fan 62 is installed between the dust cover 64 and the refrigeration plate 67 through the ring cover 61.

[0046] The liquid cooling circulation system 9 includes a flat ring cavity 91, which is opened inside the pump body 1 and close to one end of the pump cover 2, that is, the flat ring cavity 91 is opened at the other end of the motor shaft, and the diameter of the circular ring structure opened by the flat ring cavity 91 is perpendicular to the axis of the pump body 1, and the inner edges of the flat ring cavity 91 are all chamfered. A liquid inlet cavity 92 is opened inside the pump body 1 and close to the motor shaft. The spiral filter head 83 is inserted into the pump body 1 through the liquid inlet cavity 92, and a liquid outlet cavity 93 is opened inside the pump body 1 and away from the motor shaft. The liquid inlet cavity 92 is connected with the liquid outlet cavity 93 through the flat ring cavity 91.

[0047] The liquid inlet chamber 92 and the liquid outlet chamber 93 are both opened in a spiral shape, which can increase the flow path of the coolant, prolong the residence time of the coolant in the pump body 1, and improve the heat dissipation effect. The flat ring chamber 91 is connected to the annular groove 13 through the liquid inlet chamber 92, and the chamber between the impeller 7 and the pump body 1 is connected to the annular groove 13.

[0048] When in use, the coolant enters the coolant circulation pipe 3 through the external cooling system. Under the guidance of the coolant circulation pipe 3, the coolant enters the chamber between the impeller 7 and the pump cover 2. Then, driven by the motor inside the pump body 1, the impeller 7 is driven to rotate. The rotating impeller 7 drives the coolant to circulate inside the pump cover 2 for one circle, and then flows out from the coolant circulation channel 4.

[0049] During use, the refrigeration plate 67 directly cools one end of the motor shaft, and as the exhaust fan 62 rotates with the rotation of the motor, the suction force generated can suck air from the arc filter element 52 into the rectangular frame 51, and after being filtered by the double filter mesh 521, the air enters the air guide cavity 53, and under the guidance of the connection between the air guide cavity 53 and the air hole 63, the air is introduced from the air hole 63 into the inner side of the annular cover 61, and finally, under the blowing action of the exhaust fan 62, the air carrying the heat inside the pump body 1 is discharged from the oblique air outlet on the dust cover 64, thereby realizing the heat dissipation and cooling function of the end of the motor shaft away from the pump cover 2.

[0050] During this period, not only can the cooling plate 67 be used to cool the end of the motor shaft away from the pump cover 2, but the air guide cavity 53 can also be used to form a circular array of open cavity structures inside the pump body 1, combined with the airflow generated by the exhaust fan 62, to take away the heat from the motor casing, that is, the inside of the pump body 1, and form a flowing air-cooled heat dissipation system inside the pump body 1. Combining the above-mentioned structural design, under the dual effects of fitting refrigeration and agitating the airflow to flow around, the heat dissipation and cooling effect of the heat inside the pump body 1 is achieved, thereby preventing the motor from overheating, ensuring that the electronic water pump can work normally, and extending the service life of the electronic water pump.

[0051] In addition, while the coolant is flowing inside the pump cover 2, the solenoid valve 97 can be activated to guide the coolant into between the impeller 7 and the pump body 1, so that after the coolant is filtered through the filter assembly 8, it is guided by the liquid inlet chamber 92 in the flat ring chamber 91, flows from the liquid outlet chamber 93 into the collecting chamber 94, and then flows back into the chamber between the impeller 7 and the pump cover 2 through the collecting chamber 94 with the help of the output valve 95. The coolant circulates inside the pump body 1, that is, the end of the motor shaft close to the pump cover 2, to carry away the heat inside the pump body 1 at this part, thereby further improving the cooling efficiency of the motor, and using the coolant for active cooling to enhance the heat dissipation effect of the motor.

[0052] By combining the air cooling mechanism 5 with the heat dissipation mechanism 6 and the liquid cooling circulation system 9, air cooling and liquid cooling are used simultaneously to comprehensively improve the cooling efficiency of the motor. While the motor shaft drives the exhaust fan 62 to rotate with the motor, the coolant flowing through the electronic water pump is used to circulate and cool the water pump itself, thereby improving the cooling efficiency and making the electronic water pump energy-saving.

[0053] Among them, the liquid inlet cavity 92 is opened closely around the motor shaft, and the heat around the motor shaft can be collected into the coolant by the coolant flowing in the liquid inlet cavity 92 by means of heat exchange, and the coolant is collected on the inner side of the flat ring cavity 91 for a short time, so that the coolant can form an annular cooling liquid cavity belt structure with a certain width at one end of the rotor of the motor with the help of the flat ring cavity 91. The heat generated by the rotor rotating inside the pump body 1 is heat-exchanged by using this close-range annular cooling liquid cavity belt, thereby realizing the cooling treatment of the heat generated at the assembly part of the motor shaft and the impeller 7, so that the coolant guided between the liquid inlet cavity 92 and the liquid outlet cavity 93 by activating the solenoid valve 97 can simultaneously cool the various heat of the motor shaft and the rotor of the motor.

[0054] In addition, the output valve 95 can be designed to correspond one-to-one with the blades on the impeller 7. The output valve 95 can be used to guide the coolant to the blades of the impeller 7 in a one-way manner to assist in promoting the rotational movement of the impeller 7 on the inner side of the pump cover 2. This can not only redirect the coolant flowing through the inside of the electronic water pump back to the flow path, but also assist in promoting the rotation of the impeller 7, thereby avoiding interference of the refluxed coolant on the rotational movement of the impeller 7.

[0055] The automotive electronic water pump can effectively improve the heat dissipation performance of the electronic water pump, prevent the electronic water pump and the motor from overheating, and extend the service life of the electronic water pump by means of heat sinks 11 arranged on the periphery of the pump body 1 and the pump cover 2, a liquid cooling circulation system 9 arranged inside the pump body 1, an air cooling mechanism 5 installed on the pump body 1, and a heat dissipation mechanism 6 assembled at one end of the motor shaft, that is, the end of the pump body 1 away from the pump cover 2.

[0056] At the same time, the filter assembly 8 embedded in the inner side of the annular groove 13 can effectively prevent the liquid inlet chamber 92 and the liquid outlet chamber 93 opened inside the pump body 1 from being blocked, thereby ensuring the stable operation of the liquid cooling circulation system 9 and the water pump. Combined with the above-mentioned usage process, it can be seen that the overall structure of the electronic water pump is simple, easy to use, and can cool down by itself, and can operate and use smoothly.

[0057] By means of the double filter screen 521 installed in the arc filter element 52, the airflow passing through the arc filter element 52 can be double filtered to prevent foreign matter from following the airflow and entering the interior of the arc filter element 52 and blocking the air guide cavity 53. The air hole 63 can also be prevented from being blocked, thereby ensuring that the exhaust fan 62 can operate normally inside the ring cover 61 driven by the motor shaft, thereby ensuring the normal operation and use of the electronic water pump.

[0058] Among them, through the bolt assembly design of the heat dissipation mechanism 6 on the pump body 1, especially the corresponding interlocking installation design of the heat sink 11 installed on the surface of the pump body 1 in the notch 65, the tightness of the installation between the structures is enhanced, and the exhaust fan 62 can be guaranteed to rotate smoothly in the ring cover 61 without misalignment, collision or scratching with the inner wall of the ring cover 61, and no abnormal noise will be generated. At the same time, it is convenient to disassemble the heat dissipation mechanism 6 assembled on the pump body 1 as a whole, and separate the heat dissipation mechanism 6 from the pump body 1 in a modular form, which not only facilitates the overall disassembly and replacement of the heat dissipation mechanism 6 in the later stage, but also can follow the progress of technology and iteratively upgrade the heat dissipation mechanism 6 as a whole, so that the electronic water pump still has space that can be modified, and can follow the needs of technological development to upgrade and continue to use the air-cooling related structures.

[0059] By assembling the heat dissipation mechanism 6, the filter assembly 8, and the liquid cooling circulation system 9 on the electronic water pump, not only will it not occupy too much structural space of the water pump itself, but it will also reduce the weight of the electronic water pump. In addition, there is no complicated structural accumulation, no redundant structural accumulation, and the structural characteristics of the electronic water pump itself are improved and designed in an ingenious structure. While ensuring that the electronic water pump can be used and work normally, it ensures that the electronic water pump has a self-cooling function to meet current usage needs.

[0060] The second embodiment is based on the first embodiment. Figure 2 and Fig.10 As shown, the filter assembly 8 includes a filter ring 81, which is mounted in an annular groove 13 and is fitted with the pump body 1. A concave filter ring 82 is fitted on the surface of the filter ring 81 facing away from the pump body 1. The concave filter ring 82 is fitted with the pump body 1 through the annular groove 13 and the filter ring 81. A spiral filter head 83 is connected to the surface of the filter ring 81 and the side away from the concave filter ring 82 in a circular array, and the spiral filter head 83 is spiral in shape as a whole.

[0061] The filter holes on the concave filter ring 82, the filter ring 81 and the spiral filter head 83 are reduced in size in sequence, and the filter assembly 8 as a whole is used to filter impurities in the coolant to prevent the liquid cooling circulation system 9 inside the pump body from being blocked.

[0062] During the use of the filter assembly 8, through the design of the filter ring 81, the concave filter ring 82 and the spiral filter head 83, the coolant to be transported into the liquid chamber 92 can be filtered and purified, and the coolant can be double-filtered to intercept and block impurities in the coolant outside the filter ring 81 and the concave filter ring 82. The spiral filter head 83 serves as an effective anti-clogging and protective structure for tiny impurities blocking the liquid chamber 92, thereby preventing impurities from clogging the liquid chamber 92 and causing the coolant to circulate poorly in the flat ring chamber 91 and the liquid outlet chamber 93, thereby ensuring that the coolant can circulate smoothly between the flat ring chamber 91 and the collecting chamber 94. At the same time, it can also prevent impurities from clogging the output valve 95, ensuring that the output valve 95 can unidirectionally return the coolant to the chamber between the pump cover 2 and the impeller 7.

[0063] The third embodiment is based on the first and second embodiments. Figures 4 to 12 As shown, a collecting chamber 94 is opened inside the pump cover 2, and the collecting chamber 94 is parallel to the flat ring chamber 91 through the cooperation of the pump body 1 and the pump cover 2, and an output valve 95 is embedded in a circular array inside the pump cover 2, and the output valve 95 is connected to the collecting chamber 94, the output valve 95 is connected to the collecting chamber 94 through the pump cover 2 and the chamber between the pump cover 2 and the impeller 7, and the output valve 95 is connected to the flat ring chamber 91 through the liquid outlet chamber 93 and the collecting chamber 94, wherein the output valve 95 corresponds one-to-one to the blades on the impeller 7.

[0064] A backflow valve 96 is installed in a circular array inside the pump cover 2, and the backflow valve 96 and the output valve 95 are installed in a cross shape inside the pump cover 2. The backflow valve 96 is connected to the flat ring cavity 91 through the collecting cavity 94 and the liquid outlet cavity 93, and an electromagnetic valve 97 is installed on the impeller 7 in a centrally symmetrical shape.

[0065] When in use, by closing the output valve 95 and opening the backflow valve 96, the coolant can be guided into the collecting chamber 94 through the backflow valve 96, and the coolant is reversely guided from the collecting chamber 94, the liquid outlet chamber 93 and the flat ring chamber 91 into the liquid chamber 92. The reverse spiral guidance of the coolant by the liquid inlet chamber 92 makes the coolant pass from the spiral filter head 83 to the concave filter ring 82 and then to the filter ring 81, so as to backwash the impurities on the filter assembly 8 embedded in the inner side of the annular groove 13, and the impurities accumulated on the surfaces of the filter ring 81 and the concave filter ring 82 can be washed away, and the coolant can be reversely guided from the collecting chamber 94, the liquid outlet chamber 93 and the flat ring chamber 91 into the liquid chamber 92. In this case, these impurities can be flushed into the chamber between the impeller 7 and the pump cover 2, and when the motor drives the impeller 7 to operate normally, the coolant carrying the impurities will be discharged from the coolant circulation channel 4 out of the electronic water pump, thereby realizing the self-cleaning function of the impurities inside the electronic water pump. There is no need to disassemble the electronic water pump and clean it separately, thus reducing unnecessary post-maintenance work of the water pump and reducing the complexity of the use of the electronic water pump. By regularly adopting the above-mentioned usage method, the electronic water pump itself can be cleaned of impurities on the filter component 8 on a regular basis, thereby maintaining the long-term and efficient operation of the filter component 8 and the liquid cooling circulation system 9.

[0066] By opening the air guide cavity 53, the liquid inlet cavity 92 and the liquid outlet cavity 93 in a circular array on the inner side of the pump body 1, the heat generated by the motor on the inner side of the pump body 1 and transferred to the surroundings can be evenly exchanged to the outside of the electronic water pump, thereby realizing the all-round cooling and heat dissipation function of the electronic water pump and eliminating the heat dissipation blind spots of the electronic water pump.

[0067] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An automotive electronic water pump with a cooling structure, comprising a pump body (1), a pump cover (2) and a motor, wherein the pump cover (2) is bolted to the pump body (1), and is characterized in that: A coolant flow pipe (3) is fixedly connected to the middle of one end of the pump cover (2) away from the pump body (1), and a coolant circulation channel (4) is fixedly connected to the surface of the pump cover (2), and further comprises: An air cooling mechanism (5), the air cooling mechanism (5) being mounted on a surface of the pump body (1) and close to a side of the pump cover (2), the surfaces of the pump body (1) and the pump cover (2) both being mounted with heat sinks (11) in a circular array, an impeller (7) being mounted between the pump body (1) and the pump cover (2), and the impeller (7) being rotatably mounted via a motor and the pump cover (2); A heat dissipation mechanism (6), the heat dissipation mechanism (6) being mounted on an end of the pump body (1) away from the pump cover (2), and the heat dissipation mechanism (6) being mounted on one end of the motor shaft, for dissipating heat from the motor; A liquid cooling circulation system (9), the liquid cooling circulation system (9) being arranged on the inner sides of the pump body (1) and the pump cover (2), and a filter assembly (8) being installed in the middle of one end of the pump body (1) facing the pump cover (2); The air cooling mechanism (5) comprises a rectangular frame (51), the rectangular frame (51) being fixedly mounted on the pump body (1), a side of the rectangular frame (51) facing away from the pump cover (2) being symmetrically mounted with an arc-shaped filter element (52), an air guide cavity (53) being provided in a circular array on the inner wall of the pump body (1), and the air guide cavity (53) being connected to the arc-shaped filter element (52) through the rectangular frame (51), and a double filter screen (521) being mounted in parallel on the inner side of the arc-shaped filter element (52); The heat dissipation mechanism (6) comprises a ring cover (61), the ring cover (61) being bolted to the pump body (1), an exhaust fan (62) being rotatably mounted on the inner side of the ring cover (61) via a motor shaft, air holes (63) being provided in a circular array on the inner wall of the ring cover (61), the air guide cavity (53) being connected to the inner side of the ring cover (61) via the air holes (63), a dust cover (64) being mounted on a side of the ring cover (61) away from the pump body (1), and a surface of the dust cover (64) having oblique air outlets in the form of a circular array; The ring cover (61) has notches (65) in a circular array on one side facing the pump body (1); the ring cover (61) is mounted in a chimeric pattern with the pump body (1) through the notches (65) and the heat sink (11); a sealing ring (66) is fixedly mounted around the side of the ring cover (61) facing the pump body (1); the sealing ring (66) is fitted to the pump body (1); a cooling plate (67) is fixedly mounted in the middle of the side of the ring cover (61) facing the pump body (1); and the exhaust fan (62) is mounted between the dust cover (64) and the cooling plate (67) through the ring cover (61); The cooling plate (67) directly cools one end of the motor shaft, and as the exhaust fan (62) rotates along with the rotation of the motor, the suction force generated draws air from the arc filter element (52) into the interior of the rectangular frame (51), and after being filtered by the double filter screens (521), the air enters the interior of the air guide cavity (53), and under the guidance of the connection between the air guide cavity (53) and the air hole (63), the air is introduced from the air hole (63) into the inner side of the annular cover (61), and finally, under the blowing action of the exhaust fan (62), the air carrying the internal heat of the pump body (1) is discharged from the oblique air outlet on the dust cover (64).

2. The automotive electronic water pump with a cooling structure according to claim 1, characterized in that: The pump body (1) has fan grooves (12) in a circular array at one end of the pump body (1) away from the pump cover (2), and an annular groove (13) is provided in the middle of one end of the pump body (1) facing the pump cover (2), and the heat sink (11) is made of aluminum alloy.

3. The automotive electronic water pump with a cooling structure according to claim 2, characterized in that: The filter assembly (8) comprises a filter ring (81), the filter ring (81) being mounted in engagement with the pump body (1) via an annular groove (13), a concave filter ring (82) being mounted in engagement with the surface of the filter ring (81) facing away from the pump body (1), the concave filter ring (82) being mounted in engagement with the pump body (1) via the cooperation of the annular groove (13) and the filter ring (81), a spiral filter head (83) being connected in a circular array shape on the surface of the filter ring (81) and on a side away from the concave filter ring (82), and the spiral filter head (83) being in a spiral shape as a whole.

4. The automotive electronic water pump with a cooling structure according to claim 3, characterized in that: The filter holes on the concave filter ring (82), the filter ring (81) and the spiral filter head (83) have apertures that decrease in sequence.

5. The automotive electronic water pump with a cooling structure according to claim 4, characterized in that: The liquid cooling circulation system (9) comprises a flat ring cavity (91), wherein the flat ring cavity (91) is provided inside the pump body (1) and close to one end of the pump cover (2), and the diameter of the circular ring structure provided by the flat ring cavity (91) is perpendicular to the axis of the pump body (1), and the inner edges of the flat ring cavity (91) are all chamfered, and a liquid inlet cavity (92) is provided inside the pump body (1) and close to the motor shaft, and the spiral filter head (83) is inserted into the pump body (1) through the liquid inlet cavity (92), and a liquid outlet cavity (93) is provided inside the pump body (1) and away from the motor shaft, and the liquid inlet cavity (92) is connected to the liquid outlet cavity (93) through the flat ring cavity (91).

6. The automotive electronic water pump with a cooling structure according to claim 5, characterized in that: The liquid inlet chamber (92) and the liquid outlet chamber (93) are both opened in a spiral shape; the flat ring chamber (91) is connected to the annular groove (13) through the liquid inlet chamber (92); and the chamber between the impeller (7) and the pump body (1) is connected to the annular groove (13).

7. The automotive electronic water pump with a cooling structure according to claim 6, characterized in that: The pump cover (2) has a collecting chamber (94) formed inside, and the collecting chamber (94) is parallel to the flat ring chamber (91) through the cooperation of the pump body (1) and the pump cover (2). The pump cover (2) has output valves (95) embedded in a circular array inside, and the output valves (95) are connected to the collecting chamber (94). The output valves (95) are connected to the chamber between the pump cover (2) and the impeller (7) through the pump cover (2). The output valves (95) are connected to the flat ring chamber (91) through the cooperation of the liquid outlet chamber (93) and the collecting chamber (94), wherein the output valves (95) correspond to the blades on the impeller (7) one by one.

8. The automotive electronic water pump with a cooling structure according to claim 7, characterized in that: The pump cover (2) has a circular array of inlaid backflow valves (96) installed inside the pump cover (2), and the backflow valves (96) and the output valves (95) are installed in a cross shape inside the pump cover (2). The backflow valves (96) are connected to the flat ring cavity (91) through the collecting cavity (94) and the liquid outlet cavity (93). The impeller (7) has a solenoid valve (97) installed in a centrally symmetrical shape.

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