Liquid-cooled micro-pump

Abstract

This utility model relates to a liquid-cooled micro pump, including a pump casing with a vortex channel in the middle. An upper cover is provided on the pump casing to cooperate with the vortex channel to form a water flow channel. Turbine discs are distributed within the vortex channel, floating up and down during operation. Rotor magnets are embedded in the inner circumference of the turbine discs, and two layers of impellers are distributed along the axis of the turbine discs on their outer circumference. A stator is also distributed within the vortex channel. This utility model uses floating impellers with a very small gap between them and the upper and lower covers, ensuring that the floating impellers will not jam or cause excessive leakage. Simultaneously, the outer rotor and floating impellers are integrally formed, reducing the overall rotor assembly volume and connection structure, further miniaturizing the pump.

Description

Technical Field

[0001] This utility model relates to the field of micro water pump design and development, specifically a liquid-cooled micro pump. Background Technology

[0002] Liquid cooling has become a technological trend in heat dissipation for electronic devices, but there is still no mature technology solution for laptops and other devices.

[0003] An ultra-thin liquid-cooled micro-pump, applicable to liquid cooling systems in laptops, robots, and other devices, can drive media such as water-based coolants like ethylene glycol and propylene glycol, liquid fluorinated refrigerants, and low-viscosity oil-based coolants like hydrocarbons to dissipate heat from computing chips, micro motors, and other devices during heat generation. This liquid-cooled micro-pump was designed and developed to meet the cooling needs of devices such as laptops and robots. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model proposes a liquid-cooled micro pump. The technical solution adopted by this utility model to solve the problem is as follows:

[0005] A liquid-cooled micro pump includes a pump housing, a vortex channel in the middle of the pump housing, and an upper cover on the pump housing to cooperate with the vortex channel to form a water flow channel.

[0006] The vortex channel contains turbine disks, which float up and down within the vortex channel during operation.

[0007] The inner circumferential surface of the turbine disk is embedded with rotor magnets, and the outer circumferential surface of the turbine disk is provided with two layers of impellers distributed along the axis of the turbine disk.

[0008] The vortex channel also contains stators.

[0009] The bottom of the pump casing is provided with a shielding shell, and the shielding shell is provided with a rotor fixing shaft integrally formed with the shielding shell to cooperate with the turbine disk to limit the turbine disk. The shielding shell is provided with an annular storage area extending into the vortex channel to isolate the stator from the turbine disk. The turbine disk is provided with an annular avoidance area to avoid the annular storage area, and a sealing plate is provided at the annular storage area.

[0010] The vortex channel contains support parts that fit against the bottom of the turbine disk to limit its position.

[0011] The annular clearance area is provided with several waist-shaped grooves distributed circumferentially around the axis of the turbine disk.

[0012] The turbine disk has a bearing at its center that mates with the rotor's fixed shaft and extends to the shielding shell at its bottom.

[0013] The bearing has a water passage groove on its inner circumference. The water passage groove extends from the outer circle of the upper end face of the bearing to the bottom of the inner circumference and finally to the outer circle of the lower end face of the bearing to form a water passage channel.

[0014] The water passages are distributed in a circular pattern around the turbine disk axis.

[0015] The vortex channel is provided with a vortex tongue, and liquid inlet and liquid outlet are distributed on both sides of the vortex tongue.

[0016] The pump casing has sealing rings distributed on both its upper and lower end faces to mate with the top cover and shielding shell.

[0017] The pump casing is provided with a groove that mates with the corresponding sealing ring.

[0018] The beneficial effects of this utility model are: This utility model uses a turbine disk with a very small gap between it and the upper shield shell, which ensures that the turbine disk will not get stuck and will not cause excessive leakage; at the same time, the rotor magnet is integrally formed with the turbine disk, reducing the volume of the rotor assembly and the connection structure, and further miniaturizing the water pump as a whole. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a three-dimensional structural diagram of the pump casing of this utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 4 ;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the shielding shell of this utility model. Figure 1 ;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the shielding shell of this utility model. Figure 2 ;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the turbine disk of this utility model. Figure 1 ;

[0028] Figure 9 This is a schematic diagram of the three-dimensional structure of the turbine disk of this utility model. Figure 2 .

[0029] The diagram shows: 1. Pump casing; 2. Vortex; 3. Top cover; 4. Shielding shell; 5. Turbine disc; 6. Rotor fixed shaft; 7. Stator; 8. Annular storage area; 9. Rotor magnet; 10. Annular clearance area; 11. Support; 12. Waist-shaped groove; 13. Bearing; 14. Water passage groove; 15. Liquid inlet; 16. Liquid outlet; 17. Sealing ring; 18. Slot; 19. Sealing plate; 21. Vortex tongue; 22. Impeller. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described more clearly and completely below with reference to the accompanying drawings in the embodiments. Of course, the described embodiments are only a part of the present utility model and not all of them. Based on this embodiment, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this utility model.

[0031] This utility model includes the following two embodiments:

[0032] Example 1:

[0033] like Figures 1 to 9 As shown, it includes a pump casing 1, a vortex channel 2 is provided in the middle of the pump casing 1, and an upper cover 3 is provided on the pump casing 1 to cooperate with the vortex channel 2 to form a water flow channel;

[0034] Turbine disks 5 are distributed inside the vortex channel 2, and the turbine disks 5 float up and down inside the vortex channel 2 during operation.

[0035] The rotor magnet 9 is embedded in the inner circumferential surface of the turbine disk 5, and two layers of impellers 22 are provided on the outer circumferential surface of the turbine disk 5 along the axial direction of the turbine disk 5.

[0036] The stator 7 is also distributed inside the vortex channel 2.

[0037] A small gap is left between the vortex channel 2 and the turbine disk 5 to prevent leakage between the high and low pressure hydraulic channels.

[0038] The rotor magnet 9 can transmit the rotational torque from the internal motor windings, thus enabling operation. The annular storage area 8 extends into the vortex channel 2 so that the stator 7 and the rotor magnet 9 are on the same plane, improving power transmission efficiency and ensuring power transmission stability; the rotor magnet 9 can also be glued to the turbine disk 5.

[0039] The bottom of the pump casing 1 is provided with a shielding shell 4. The shielding shell 4 is provided with a rotor fixing shaft 6 integrally formed with the shielding shell 4 to cooperate with the turbine disk 5 to limit the turbine disk 5. The shielding shell 4 is provided with an annular storage area 8 extending into the vortex channel 2 to isolate the stator 7 from the turbine disk 5. The turbine disk 5 is provided with an annular clearance area 10 to avoid the annular storage area 8. A sealing plate 19 is provided at the annular storage area 8.

[0040] The top cover 3 and shielding shell 4 are made of anodized aluminum alloy parts or other wear-resistant materials such as thermosetting plastic parts. The contact parts between the top cover 3 and shielding shell 4 and the turbine disk 5 have good wear resistance.

[0041] The rotor fixing shaft 6 only serves to limit the turbine disk 5. The turbine disk 5 has a very small gap with the upper cover 3 and the shielding shell 4. When the turbine disk 5 is operating, it floats up and down along the rotor fixing shaft 6, which ensures that the turbine disk 5 will not get stuck and will not cause excessive leakage, thus avoiding a decrease in volumetric efficiency. The turbine disk 5 is made of high-content glass fiber or carbon fiber, or it can be made of high wear-resistant composite plastics such as PEEK, which has good water lubrication characteristics and improves wear resistance.

[0042] The vortex channel 2 is provided with a support portion 11 that fits against the bottom of the turbine disk 5 to limit the position of the turbine disk 5.

[0043] The turbine disk 5 is provided with several waist-shaped grooves 12 distributed in a circle around the axis of the turbine disk 5; the waist-shaped grooves 12 make the water evenly distributed in the upper and lower parts of the vortex channel 2, so as to avoid local liquid shortage during startup.

[0044] The turbine disk 5 is provided with a bearing 13 at its center that cooperates with the rotor fixed shaft 6 and extends to the shield shell 4 at its bottom; there is a gap between the turbine disk 5 and the upper cover 3 and the shield shell 4, and the bearing 13 solves the problem of interference when the turbine disk 5 is running.

[0045] The bearing 13 has a water passage groove 14 on its inner circumferential surface. The water passage groove 14 extends from the outer circle of the upper end face of the bearing 13 to the bottom of the inner circumferential surface and finally to the outer circle of the lower end face of the bearing 13 to form a water passage channel. The water passage groove 14 allows water to flow between the bearing 13 and the rotor fixed shaft 6, lubricating the bearing 13 and the rotor fixed shaft 6, and also removes impurities.

[0046] The water passage 14 has several circumferentially distributed around the axis of the turbine disk 5 to ensure that the bearing 13 and the rotor fixed shaft 6 can be lubricated in the circumferential direction.

[0047] The vortex channel 2 is provided with a vortex tongue 21, and the vortex tongue 21 has an inlet 15 and an outlet 16 distributed on both sides.

[0048] The pump casing 1 has sealing rings 17 distributed on both the upper and lower end faces to cooperate with the upper cover 3 and the shielding shell 4. The sealing rings 17 prevent water from leaking out from between the upper cover 3 and the shielding shell 4.

[0049] The pump casing 1 is provided with a groove 18 that mates with the corresponding sealing ring 17.

[0050] The annular storage area 8 is equipped with a sealing plate 19, which prevents the stator 7 from directly contacting the outside world.

[0051] Example 2:

[0052] A liquid-cooled micro pump includes a pump housing 1, a vortex channel 2 in the middle of the pump housing 1, and an upper cover 3 on the pump housing 1 to cooperate with the vortex channel 2 to form a water flow channel.

[0053] Turbine disks 5 are distributed inside the vortex channel 2, and the turbine disks 5 float up and down inside the vortex channel 2 during operation.

[0054] The rotor magnet 9 is embedded in the inner circumferential surface of the turbine disk 5, and two layers of impellers 22 are provided on the outer circumferential surface of the turbine disk 5 along the axial direction of the turbine disk 5.

[0055] The stator 7 is also distributed inside the vortex channel 2.

[0056] The bottom of the pump casing 1 is provided with a rotor fixing shaft 6 integrally formed with the pump casing 1 to cooperate with the turbine disk 5 for limiting the turbine disk 5; the turbine disk 5 is provided with an annular clearance area 10 to avoid the stator 7; if the water pump medium is a non-conductive medium (such as refrigerant or oil), it is not necessary to separate the stator 7 and the rotor magnet 9 through the annular storage area 8 of the shielding shell 4, and the bottom of the pump casing 1 does not need to be through.

[0057] The vortex channel 2 is provided with a support portion 11 that fits against the bottom of the turbine disk 5 to limit the position of the turbine disk 5.

[0058] The turbine disk 5 is provided with several waist-shaped grooves 12 distributed in a circle around the axis of the turbine disk 5.

[0059] The turbine disk 5 has a bearing 13 at its center that cooperates with the rotor fixed shaft 6 and extends to the end plate 19 at its bottom.

[0060] The bearing 13 has a water passage groove 14 on its inner circumferential surface. The water passage groove 14 extends from the outer circle of the upper end face of the bearing 13 to the bottom of the inner circumferential surface and finally to the outer circle of the lower end face of the bearing 13 to form a water passage channel.

[0061] The water passage 14 has several sections arranged in a circle around the axis of the turbine disk 5.

[0062] The vortex channel 2 is provided with a vortex tongue 21, and the vortex tongue 21 has an inlet 15 and an outlet 16 distributed on both sides.

[0063] The pump casing 1 has sealing rings 17 distributed on both the upper and lower end faces to cooperate with the upper cover 3 and the sealing plate 19.

[0064] The pump casing 1 is provided with a groove 18 that mates with the corresponding sealing ring 17.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid-cooled micropump characterized by: It includes a pump casing (1), a vortex channel (2) is provided in the middle of the pump casing (1), and an upper cover (3) is provided on the pump casing (1) to cooperate with the vortex channel (2) to form a water flow channel; Turbine disks (5) are distributed inside the vortex channel (2), and the turbine disks (5) float up and down inside the vortex channel (2) during operation; The inner circumferential surface of the turbine disk (5) is embedded with a rotor magnet (9), and the outer circumferential surface of the turbine disk (5) is provided with two layers of impellers (22) distributed along the axis of the turbine disk (5); The vortex channel (2) also contains a stator (7).

2. The liquid-cooled micropump of claim 1, wherein: The bottom of the pump casing (1) is provided with a shielding shell (4). The shielding shell (4) is provided with a rotor fixing shaft (6) integrally formed with the shielding shell (4) to cooperate with the turbine disk (5) to limit the turbine disk (5). The shielding shell (4) is provided with an annular storage area (8) extending into the vortex channel (2) to isolate the stator (7) from the turbine disk (5). The turbine disk (5) is provided with an annular clearance area (10) to avoid the annular storage area (8). The annular storage area (8) is provided with a sealing plate (19).

3. The liquid-cooled micropump of claim 1, wherein: The vortex channel (2) is provided with a support part (11) that fits against the bottom of the turbine disk (5) to limit the position of the turbine disk (5).

4. The liquid-cooled micropump of claim 1, wherein: The turbine disk (5) is provided with several waist-shaped grooves (12) distributed in a circle around the axis of the turbine disk (5).

5. The liquid-cooled micropump of claim 2, wherein: The turbine disk (5) is provided with a bearing (13) at the center that cooperates with the rotor fixed shaft (6) and extends to the shield shell (4) at the bottom.

6. A liquid-cooled micropump according to claim 5, wherein: The bearing (13) has a water passage groove (14) on its inner circumferential surface. The water passage groove (14) extends from the outer circle of the upper end face of the bearing (13) to the bottom of the inner circumferential surface and finally to the outer circle of the lower end face of the bearing (13) to form a water passage channel.

7. A liquid-cooled micro pump according to claim 6, characterized in that: The water passage (14) has several sections arranged in a circle around the axis of the turbine disk (5).

8. The liquid-cooled micropump of claim 1, wherein: The vortex channel (2) is provided with a vortex tongue (21), and the vortex tongue (21) has an inlet (15) and an outlet (16) distributed on both sides.

9. The liquid-cooled micropump of claim 1, wherein: The pump casing (1) has sealing rings (17) distributed on both the upper and lower end faces to cooperate with the upper cover (3) and the shielding shell (4).

10. The liquid-cooled micropump of claim 1, wherein: The pump casing (1) is provided with a groove (18) that mates with the corresponding sealing ring (17).

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