Differential pressure heat dissipation electronic water pump based on liquid cooling system

Abstract

The utility model provides a differential pressure heat dissipation electronic water pump based on a liquid cooling system. The differential pressure heat dissipation electronic water pump comprises a water pump shell, a pump head is arranged at the front end of the water pump shell, an impeller is arranged in the pump head, a thrust plate is arranged on the front side of the impeller, and a comb flow plate is arranged on the rear side of a motor. A spiral flow guide groove is formed in the flow combing plate; a heat dissipation plate is arranged on the rear side of the flow combing plate, when the water pump operates, medium liquid flows in the pump body through the pressure difference generated in the high-pressure area and the low-pressure area, and heat generated in the working process of the circuit board and the motor is taken away. The medium liquid flows in the pump body through the pressure difference generated in the high-pressure area and the low-pressure area when the water pump operates. Heat generated when the circuit board and the motor work is effectively taken away, the temperature in the pump body is kept balanced, water pump faults and circuit board damage caused by too high temperature are avoided, the service life of equipment is prolonged, the heat dissipation area is increased through the spiral flow guide grooves in the comb flow plate, liquid flows more evenly, the heat dissipation efficiency is further improved, and the service life of the equipment is prolonged. And the temperature difference in the pump body is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of water pump, specifically, relate to a kind of electronic water pump of differential pressure heat dissipation based on liquid cooling system. BACKGROUND

[0002] In the running process of electronic equipment, the heat dissipation problem has been a key challenge. Especially for some electronic equipment that needs to run for a long time or work at high power.

[0003] In the prior art, electronic water pump has some deficiencies in the process of use. The traditional electronic water pump often adopts air cooling or simple liquid cooling, which has certain limitations in heat dissipation effect.

[0004] The air cooling method is greatly affected by environmental temperature and air flow. In high temperature environment or poor air flow condition, the heat dissipation effect is poor, which may cause high temperature of the water pump and affect its normal work, and even cause water pump failure and circuit board damage.

[0005] The simple liquid cooling method improves the heat dissipation effect to some extent, but due to the unreasonable design of flow passage, the medium liquid flows not smoothly in the pump body, which may cause blockage and affect the working efficiency of the water pump. In addition, the traditional liquid cooling method also has some shortcomings in heat dissipation uniformity, which may cause large temperature difference in the pump body and affect the stability and reliability of the equipment.

[0006] In addition, the manufacturing cost of the existing electronic water pump is high. Due to the poor heat dissipation effect, higher temperature grade control board and motor are needed, which increases the cost of components. At the same time, in order to ensure the normal operation of the equipment in high temperature environment, the temperature resistance grade of the motor also needs to be improved, which further increases the manufacturing cost; the traditional electronic water pump may cause water pump failure and circuit board damage due to high temperature, so we improve it and propose an electronic water pump based on liquid cooling system and differential pressure heat dissipation. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at the problems existing in the background technology. In order to realize the above utility model purpose, the utility model provides the following technical scheme: an electronic water pump based on liquid cooling system and differential pressure heat dissipation, comprising a water pump shell, a pump head is arranged at the front end of the water pump shell, a impeller is arranged in the pump head, the impeller is sleeved on a hollow shaft, a thrust piece is arranged at the front side of the impeller, and the thrust piece is sleeved on the hollow shaft;

[0008] The hollow shaft is connected with a motor, a shield sleeve is arranged at the front side of the motor; a first sealing ring is arranged between the shield sleeve and the water pump shell; a second sealing ring is arranged between the shield sleeve and the motor;

[0009] The rear side of the motor is provided with a comb flow plate; the comb flow plate is provided with a spiral flow guide groove; the rear side of the comb flow plate is provided with a heat dissipation plate; when the water pump is running, the pressure difference generated by the high and low pressure areas makes the medium liquid flow in the pump body, and the heat generated by the circuit board and the motor during operation is taken away.

[0010] As a preferred technical scheme of the utility model, the motor includes a motor rotor and a motor stator; the motor stator is arranged on the outer side of the motor rotor, and the motor stator is fixed in the water pump housing.

[0011] As a preferred technical scheme of the utility model, the rear side of the heat dissipation plate is provided with a control panel; the heat dissipation plate is provided with a temperature sensor; and a third sealing ring is arranged between the heat dissipation plate and the comb flow plate.

[0012] As a preferred technical scheme of the utility model, the rear end of the hollow shaft is provided with a bearing sleeve, and the outer surface of the bearing sleeve is sleeved with a fourth sealing ring.

[0013] As a preferred technical scheme of the utility model, the rear side of the water pump housing is provided with a rear cover body.

[0014] As a preferred technical scheme of the utility model, the inner side of the rear cover body is provided with a fifth sealing ring.

[0015] As a preferred technical scheme of the utility model, the temperature sensor measures in the range of 0-100 DEG C.

[0016] As a preferred technical scheme of the utility model, the spiral flow guide groove is 3mm deep.

[0017] Compared with the prior art, the utility model has the beneficial effects that: in the scheme of the utility model, when the water pump is running, the pressure difference generated by the high and low pressure areas makes the medium liquid flow in the pump body, effectively taking away the heat generated by the circuit board and the motor during operation, keeping the temperature in the pump body balanced, avoiding water pump failure and circuit board damage caused by excessively high temperature, and prolonging the service life of the equipment.

[0018] Reasonable design of the impeller, the hollow shaft, the thrust piece and other components makes the pump run more smoothly, the medium liquid flow is not easy to block, and the working efficiency of the water pump is improved.

[0019] The spiral flow guide groove on the comb flow plate increases the heat dissipation area, makes the liquid flow more uniform, further improves the heat dissipation efficiency, and reduces the temperature difference in the pump body.

[0020] The utility model ensures that the temperature of the pump body and the temperature of the medium liquid are basically consistent, reduces the temperature grade of the control panel, and reduces the cost of components and elements.

[0021] The temperature sensor on the heat dissipation plate can monitor the temperature of the flowing liquid in real time, the water pump control panel can timely adjust the water pump flow according to the collected liquid temperature, the system temperature is kept balanced, and the needs of users are met.

[0022] The first sealing ring between the shielding sleeve and the water pump shell, the second sealing ring between the shielding sleeve and the motor, the fourth sealing ring on the outer surface of the bearing sleeve and the fifth sealing ring on the inner side of the rear cover body jointly ensure the good sealing of the whole system, prevent liquid leakage, and improve the reliability of the system. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The utility model provides cross section structure schematic drawing for the utility model provides spiral flow guide groove structure schematic drawing for the utility model provides motor structure schematic drawing for the utility model provides main view structure schematic drawing for the utility model provides left view structure schematic drawing.

[0024] Figure 2 The utility model provides cross section structure schematic drawing for the utility model provides spiral flow guide groove structure schematic drawing for the utility model provides motor structure schematic drawing for the utility model provides main view structure schematic drawing for the utility model provides left view structure schematic drawing.

[0025] Figure 3 The utility model provides cross section structure schematic drawing for the utility model provides spiral flow guide groove structure schematic drawing for the utility model provides motor structure schematic drawing for the utility model provides main view structure schematic drawing for the utility model provides left view structure schematic drawing.

[0026] Figure 4 The utility model provides cross section structure schematic drawing for the utility model provides spiral flow guide groove structure schematic drawing for the utility model provides motor structure schematic drawing for the utility model provides main view structure schematic drawing for the utility model provides left view structure schematic drawing.

[0027] Figure 5 The utility model provides cross section structure schematic drawing for the utility model provides spiral flow guide groove structure schematic drawing for the utility model provides motor structure schematic drawing for the utility model provides main view structure schematic drawing for the utility model provides left view structure schematic drawing.

[0028] Figure 6 The utility model provides cross section structure schematic drawing for the utility model provides spiral flow guide groove structure schematic drawing for the utility model provides motor structure schematic drawing for the utility model provides main view structure schematic drawing for the utility model provides left view structure schematic drawing.

[0029] Indicated in the drawing:

[0030] 1, water pump shell;2, pump head;3, impeller;4, hollow shaft;5, thrust piece;6, motor;61, motor rotor;62, motor stator;7, shielding sleeve;8, first sealing ring;9, second sealing ring;10, comb flow plate;101, spiral flow guide groove;11, heat dissipation plate;111, temperature sensor;12, third sealing ring;13, control panel;14, bearing sleeve;15, fourth sealing ring;16, rear cover body;17, fifth sealing ring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0032] Therefore, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model. It should be noted that the embodiments in the utility model and the features and technical schemes in the embodiments can be combined with each other without conflict, and similar reference numbers and letters represent similar items in the following drawings, so that once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] Embodiment 1: please refer to Figures 1-6 An electronic water pump based on differential pressure heat dissipation of liquid cooling system, comprising a water pump shell 1, the front end of the water pump shell 1 is provided with a pump head 2, the pump head 2 is provided with an impeller 3, the impeller 3 is sleeved on a hollow shaft 4, the front side of the impeller 3 is provided with a thrust piece 5, and the thrust piece 5 is sleeved on the hollow shaft 4.

[0034] The hollow shaft 4 is connected with a motor 6, the front side of the motor 6 is provided with a shield sleeve 7; the shield sleeve 7 and the water pump shell 1 are provided with a first sealing ring 8; the shield sleeve 7 and the motor 6 are provided with a second sealing ring 9.

[0035] The rear side of the motor 6 is provided with a comb flow plate 10; the comb flow plate 10 is provided with a spiral flow guide groove 101; a micro convex is arranged in the spiral flow guide groove 101, and a plurality of micro convexs are arranged on the inner wall of the spiral flow guide groove 101, which can increase the turbulence degree of the liquid and improve the heat transfer efficiency. These micro convexs can be arranged in an annular manner to achieve the best heat dissipation effect; the rear side of the comb flow plate 10 is provided with a heat dissipation plate 11, and the pressure difference generated by the high and low pressure areas when the water pump operates makes the medium liquid flow in the pump body, thereby taking away the heat generated by the circuit board and the motor 6 during operation. The motor 6 comprises a motor rotor 61 and a motor stator 62; the motor stator 62 is arranged on the outer side of the motor rotor 61, and the motor stator 62 is fixed in the interior of the water pump shell 1.

[0036] The rear side of the heat dissipation plate 11 is provided with a control board 13; the heat dissipation plate 11 is provided with a temperature sensor 111, and a third sealing ring 12 is arranged between the heat dissipation plate 11 and the comb flow plate 10. The rear end of the hollow shaft 4 is provided with a bearing sleeve 14, and the outer surface of the bearing sleeve 14 is sleeved with a fourth sealing ring 15. The rear side of the water pump shell 1 is provided with a rear cover body 16. The inner side of the rear cover body 16 is provided with a fifth sealing ring 17. The measurement range of the temperature sensor 111 is 0℃-100℃. The temperature resistance range of the sealing ring is -20℃-120℃.

[0037] The working principle of the electronic water pump based on the pressure difference heat dissipation of the liquid cooling system is as follows: when the electronic water pump starts, the motor rotor 61 of the motor 6 starts to rotate under the action of the motor stator 62, and drives the impeller 3 to rotate through the hollow shaft 4. The rotation of the impeller 3 causes a pressure difference in the pump head 2, so that the medium liquid is sucked into the pump head 2 and discharged from the outlet.

[0038] In this process, due to the pressure difference between high and low pressure areas when the water pump is running, the medium liquid flows in the pump body. The liquid first passes through the impeller 3, and then passes through the thrust piece 5, which plays a certain balance and support role. Then, the liquid flows through the shielding sleeve 7 in front of the motor 6, and is sealed by the first sealing ring 8 and the second sealing ring 9 to prevent liquid leakage.

[0039] The liquid continues to flow backward, reaches the comb flow plate 10 after passing through the motor 6. The spiral guide groove 101 on the comb flow plate 10 makes the liquid flow more smoothly and increases the heat dissipation area. The liquid carries away the heat generated by the motor 6 during operation while flowing through the comb flow plate 10.

[0040] Subsequently, the liquid reaches the heat dissipation plate 11. The heat dissipation plate 11 further dissipates heat, keeping the temperature in the pump body balanced. The temperature sensor 111 on the heat dissipation plate 11 monitors the temperature of the liquid in real time, with a measurement range of 0℃-100℃. When the temperature sensor 111 detects a change in the temperature of the liquid, it transmits a signal to the control board 13. The control board 13 adjusts the flow of the water pump in a timely manner according to the temperature information to maintain the balance of the system temperature.

[0041] The liquid continues to flow, passes through the bearing sleeve 14 at the rear end of the hollow shaft 4, and the fourth sealing ring 15 on the outer surface of the bearing sleeve 14 plays a sealing role to prevent liquid leakage. Finally, the liquid reaches the rear cover body 16 at the rear side of the water pump shell 1, and the fifth sealing ring 17 inside the rear cover body 16 also plays a sealing role to ensure the sealing of the entire system.

[0042] Through the above working process, the electronic water pump realizes efficient heat dissipation of the motor 6 and the circuit board by utilizing the pressure difference of the liquid cooling system, ensures the normal operation of the water pump, and reduces the manufacturing cost and improves the stability of the work.

[0043] Embodiment 2: An electronic water pump based on differential pressure heat dissipation of liquid cooling system, electronic water pump model: EP-01; impeller 3 diameter: 60mm; motor 6 power: 2kW; hollow shaft 4 diameter: 12mm; spiral flow guide groove 101 depth: 3mm; heat dissipation plate 11 area: 250cm 2 ; temperature sensor 111 measurement range: 0℃-100℃; sealing ring temperature resistance range: -20℃-120℃; bearing sleeve 14 inner diameter: 15mm; spiral flow guide groove 101 adopts a multi-layer spiral flow guide groove 101 structure, which allows the medium liquid to change direction multiple times when flowing through the comb flow plate 10, increasing the disturbance and mixing of the liquid and improving the heat dissipation effect;

[0044] Application scenario: The electronic water pump is suitable for industrial cooling systems and can circulate and deliver cooling liquid to effectively reduce equipment temperature and ensure normal operation of industrial production. In the system, the electronic water pump can work stably, utilize the differential pressure of the liquid cooling system for heat dissipation, keep the pump body temperature and the medium liquid temperature basically consistent, and reduce the temperature requirements of the control board 13 and the motor 6, thereby reducing the cost. At the same time, the temperature sensor 111 can monitor the liquid temperature in real time and adjust the water pump flow as needed to keep the system temperature balanced.

[0045] Solves the problems of pump failure, circuit board damage, etc. caused by high temperature in traditional electronic water pumps. The structure flow channel design cleverly utilizes the pressure difference generated by high and low pressure areas during water pump operation to make the medium liquid flow in the pump body, taking away the heat generated by the circuit board and motor 6 during operation, and keeping the temperature balanced. Effectively ensures that high or low temperature does not affect the normal operation of the water pump.

[0046] The specific working process of the electronic water pump based on differential pressure heat dissipation of liquid cooling system is as follows:

[0047] Starting the electronic water pump: after connecting the power supply, the motor 6 starts to work. The motor stator 62 generates a magnetic field to drive the motor rotor 61 to rotate, and the motor rotor 61 drives the impeller 3 to rotate through the hollow shaft 4.

[0048] Medium liquid suction: as the impeller 3 rotates, a pressure difference is generated in the pump head 2, causing the medium liquid to be sucked into the pump head 2. The liquid is pushed by the impeller 3 and flows to the thrust piece 5 on the front side of the impeller 3.

[0049] Through the shield sleeve 7: after the liquid passes through the thrust piece 5, it flows to the shield sleeve 7 on the front side of the motor 6. At this time, the first sealing ring 8 prevents liquid from leaking between the shield sleeve 7 and the water pump housing 1, and the second sealing ring 9 prevents liquid from leaking between the shield sleeve 7 and the motor 6.

[0050] Flow through the comb plate 10: liquid after passing through the shield sleeve 7, to the comb plate 10 of the rear side of the motor 6. The spiral guide groove 101 on the comb plate 10 makes the liquid flow more smoothly, while increasing the heat dissipation area, the liquid in the process of flowing through the comb plate 10, take away part of the heat generated by the motor 6 when working.

[0051] Arrive at the heat sink 11: liquid through the comb plate 10 continues to flow to the heat sink 11. The heat sink 11 further dissipates heat, so that the temperature in the pump body is kept balanced. The temperature sensor 111 on the heat sink 11 real-time monitoring of the temperature of the liquid, its measurement range is 0-100 DEG C.

[0052] Information feedback and flow adjustment: temperature sensor 111 will detect the liquid temperature information transmission to the heat sink 11 rear side of the control board 13. The control board 13 according to temperature information, timely adjust the flow of water pump, to keep the system temperature balanced.

[0053] Through the bearing sleeve 14: liquid through the heat sink 11, to the bearing sleeve 14 of the rear end of the hollow shaft 4. The fourth sealing ring 15 on the outer surface of the bearing sleeve 14 plays a sealing effect, to prevent liquid leakage.

[0054] Arrive at the rear cover body 16: liquid through the bearing sleeve 14, to the rear cover body 16 of the rear side of the water pump shell 1. The fifth sealing ring 17 in the rear cover body 16 plays a sealing effect, to ensure the sealing of the whole system, prevent liquid leakage.

[0055] Circulating heat dissipation: liquid through the rear cover body 16, continue to flow in the pump body under the action of pressure difference, constantly take away the heat generated by the circuit board and the motor 6 when working, realize sustained heat dissipation, guarantee the normal work of the electronic water pump.

[0056] The above examples are only used to illustrate the present application and not to limit the technical solutions described in the present application. Although the present application has been described in detail with reference to the above embodiments, the present application is not limited to the above specific embodiments, therefore any modification or equivalent replacement of the present application; and all technical solutions and improvements which do not deviate from the spirit and scope of the present application are covered in the scope of claims of the present application.

Claims

1. An electronic water pump with differential heat dissipation based on a liquid cooling system, comprising a water pump housing (1), a pump head (2) being provided at the front end of the water pump housing (1), characterized in that: An impeller (3) is provided in the pump head (2), the impeller (3) is sleeved on a hollow shaft (4), a thrust plate (5) is provided on the front side of the impeller (3), and the thrust plate (5) is sleeved on the hollow shaft (4); the hollow shaft (4) is connected to a motor (6), and a shielding sleeve (7) is provided on the front side of the motor (6); A first sealing ring (8) is provided between the shielding sleeve (7) and the water pump housing (1); a second sealing ring (9) is provided between the shielding sleeve (7) and the motor (6); a combing plate (10) is provided on the rear side of the motor (6); a spiral guide groove (101) is provided on the combing plate (10); and a heat dissipation plate (11) is provided on the rear side of the combing plate (10).

2. The electronic water pump with pressure difference heat dissipation based on a liquid cooling system according to claim 1, characterized in that: The motor (6) comprises a motor rotor (61) and a motor stator (62); the motor stator (62) is provided on the outside of the motor rotor (61), and the motor stator (62) is fixed inside the water pump housing (1).

3. The electronic water pump with pressure difference heat dissipation based on a liquid cooling system according to claim 1, characterized in that: A control panel (13) is provided on the rear side of the heat dissipation plate (11); a temperature sensor (111) is provided on the heat dissipation plate (11); and a third sealing ring (12) is provided between the heat dissipation plate (11) and the combing plate (10).

4. The electronic water pump with pressure difference heat dissipation based on a liquid cooling system according to claim 1, characterized in that: A bearing sleeve (14) is provided at the rear end of the hollow shaft (4), and a fourth sealing ring (15) is provided on the outer surface of the bearing sleeve (14).

5. The electronic water pump with pressure difference heat dissipation based on a liquid cooling system according to claim 1, characterized in that: A rear cover (16) is provided on the rear side of the water pump housing (1).

6. The electronic water pump with pressure difference heat dissipation based on a liquid cooling system according to claim 5, characterized in that: A fifth sealing ring (17) is provided on the inner side of the rear cover (16).

7. The electronic water pump with pressure difference heat dissipation based on a liquid cooling system according to claim 3, characterized in that: The temperature sensor (111) has a measuring range of 0°C to 100°C.

8. The electronic water pump with pressure difference heat dissipation based on a liquid cooling system according to claim 1, characterized in that: The spiral guide groove (101) has a depth of 3 mm.

Images