CN100410541C - Liquid-cooled pump - Google Patents

Abstract

The invention relates to a liquid-cooled pump, which comprises an upper cover, a hub, a seat body, a driving assembly and a bottom cover; the upper space and the lower space are divided by a separating seat inside the seat body, the wheel hub is arranged in the upper space, the driving component is arranged in the lower space, the upper cover is fixed above the seat body and is provided with a water inlet pipe and a water outlet pipe, the bottom cover is fixed on the bottom surface of the seat body, a bearing is fixedly arranged on the separating seat, a mandrel capable of rotating in the bearing in a penetrating and pulling mode is arranged in the center of the wheel hub, permanent magnets are arranged on the inner peripheral wall surface of the wheel hub, and magnetic conducting materials are arranged on the position, corresponding to the permanent. Therefore, although the hub bears pressure difference during rotation, the permanent magnet and the magnetic conductive material have attraction positioning force, so that the hub can be limited to float upwards and shift, the blade of the hub is prevented from being rubbed with the upper cover, the problem that the retaining piece rubs the bearing is avoided, and the service life of the liquid-cooled pump can be prolonged.

Description

Liquid Cooled Pump

technical field

The invention relates to a liquid-cooled pump, which is arranged on the circulation circuit of the liquid-cooled heat dissipation system, and achieves the purpose of heat dissipation by driving the liquid circulating in the external pipeline of the pump.

Background technique

A conventional liquid-cooled pump is shown in Figure 1, which consists of an upper cover 11, a partition 12 and a lower cover 13 to form a body 10, forming an upper closed space 14 and a lower closed space 15 inside the main body 10, and an upper closed space 14 A fan blade 20 is arranged in the middle, and a motor unit 30 is arranged in the lower closed space 15 .

The upper closed space 14 must be filled with liquid, and the upper cover 11 is provided with a water inlet pipe 16 and a water outlet pipe 17, and they are respectively connected with pipeline circuits for liquid flow. When the motor group 30 drives the fan blade 20 to run, the The liquid is driven to be introduced by the water inlet pipe 16 and discharged by the water outlet pipe 17, so as to continuously circulate to achieve the purpose of heat dissipation.

The above-mentioned conventional structure has the disadvantage that the fan blade 20 rubs against the upper cover 11, causing the fan blade 20 to be worn due to friction, thereby losing the original precision and running balance.

The plurality of blades 21 extending above the fan blades 20 are the main players to induce the circulation of the liquid. Therefore, the liquid flow velocity at the periphery of the blades 21 is also faster, compared with this, the liquid flow velocity below the fan blades 20 is slower, and the flow velocity The pressure difference will be generated, that is, the pressure will be low if the flow velocity is fast, and the pressure will be high if the flow velocity is slow. Therefore, the greater pressure under the fan blade 20 will generate a thrust on the fan blade 20, pushing the entire fan blade 20 upward, so that The fan blade 20 will produce the following two results during operation:

Firstly, as shown in FIG. 2 , since the fan blade 20 floats upward, the blade 21 will continuously press against and rub against the upper cover 11 , causing the upper cover 11 and the blade 21 to wear.

Second, as shown in Figure 3, if the bottom end of the mandrel 22 of the fan blade 20 is fixed with a buckle 23, then when the fan blade 20 floats up, the bottom surface of the buckle 23 and the bearing 24 will be formed. High-speed friction causes bearing 24 to wear and tear.

Therefore, in order to prolong the service life of the liquid-cooled pump and maintain its operating balance and cycle efficiency, it is extremely necessary to completely solve the problem of fan blade floating.

Contents of the invention

In view of the above problems, the main purpose of the present invention is to provide a liquid-cooled pump, which can completely solve the problem of fan blades floating up.

In order to achieve the above object, the present invention provides a liquid-cooled pump, which includes an upper cover, a hub, a base, a driving assembly and a bottom cover; the inside of the base is separated from the upper space and In the lower space, the hub is arranged in the upper space, the driving assembly is arranged in the lower space, the upper cover is fixed above the seat, and is provided with a water inlet pipe and a water outlet pipe, and the bottom The cover is fixed on the bottom surface of the seat body, and it is characterized in that: a bearing is fixed on the partition seat, a mandrel that can be threaded and rotated in the bearing is provided in the center of the hub, and a permanent shaft is provided on the inner peripheral wall of the hub. magnet, and the bottom surface of the partition seat of the seat body is provided with a magnetically permeable material at a position corresponding to the permanent magnet.

Wherein the bottom surface of the hub is provided with a lower magnet at a position surrounding the mandrel, and a magnetically conductive material is provided at a position corresponding to the lower magnet on the bottom surface of the separation seat of the seat body.

The magnetically permeable material is a metal sheet.

A shaft tube is arranged on the separation seat, a groove is provided at the bottom of the shaft tube, the bearing is arranged in the shaft tube, and a friction plate is placed in the groove.

A plurality of axial ribs protrude from the inner peripheral wall of the shaft tube.

The bottom end of the mandrel has a spherical shape.

A plurality of vortex blades protrude from the top surface of the hub.

The driving assembly includes a circuit board and a stator group.

Both the water inlet pipe and the water outlet pipe are connected to a pipeline circuit through which the cooling liquid can flow.

Another technical solution of the present invention provides a liquid-cooled pump, which includes an upper cover, a hub, a base, a drive assembly and a bottom cover; the inside of the base is divided into the upper space and the In the lower space, the hub is arranged in the upper space, the driving assembly is arranged in the lower space, the upper cover is fixed above the seat, and is provided with a water inlet pipe and a water outlet pipe, and the bottom The cover is fixed on the bottom surface of the seat body, and it is characterized in that: a bearing is fixed on the separation seat, and the center of the hub has a mandrel that can be inserted and rotated in the bearing, and the bottom surface of the hub surrounds the A lower attracting magnet is provided around the mandrel, and a magnetically conductive material is provided at a position corresponding to the position of the lower attracting magnet on the bottom surface of the separation seat of the seat body.

The magnetically permeable material is a metal sheet.

A shaft tube is arranged on the separation seat, and a groove is arranged at the bottom of the shaft tube, the bearing is placed in the shaft tube, and a friction plate is placed in the groove.

A plurality of axial ribs protrude from the inner peripheral wall of the shaft tube.

The bottom end of the mandrel has a spherical shape.

A plurality of vortex blades protrude from the top surface of the hub, and permanent magnets are provided on the inner peripheral wall.

The driving assembly includes a circuit board and a stator group.

Both the water inlet pipe and the water outlet pipe are connected to a pipeline loop for cooling liquid to flow.

Adopting the above technical scheme, although the wheel hub of the present invention bears pressure difference when rotating, there is an attractive positioning force between the permanent magnet and the magnetic conductive material, which can limit the floating and displacement of the wheel hub, avoid friction between the blades of the wheel hub and the upper cover, and prevent It will lead to the problem of friction bearing of the buckle and prolong the service life of the liquid-cooled pump.

Description of drawings

Fig. 1 is the sectional schematic view of conventional structure;

Fig. 2 is one of the schematic diagrams of the running action of the conventional structure;

Fig. 3 is the second schematic diagram of the running action of the conventional structure;

4 is a schematic top view of the first embodiment of the present invention;

Fig. 5 is a schematic cross-sectional view of the first embodiment of the present invention;

6 is a schematic cross-sectional view of a second embodiment of the present invention;

Fig. 7 is a schematic cross-sectional view of a third embodiment of the present invention.

Detailed ways

As shown in Fig. 4 and Fig. 5, the liquid-cooled pump provided by the first embodiment of the present invention includes an upper cover 40, a hub 50, a base 60, a driving assembly 70 and a bottom cover 80, wherein :

The inside of the upper cover 40 has an inner chamber 41 that is open downwards, and its top is provided with a water inlet pipe 42 and a water outlet pipe 43. The inlet and outlet pipes 42, 43 are all connected to the inner chamber 41, and their outer ends are respectively connected to Provide a pipeline loop through which the cooling liquid can flow.

The hub 50 is a hollow disk-shaped body with a ㄇ-shaped cross section. A plurality of vortex-shaped blades 51 protrude from the top surface, a permanent magnet 53 is installed on the inner peripheral wall, and a mandrel 52 is fixed in the center of the hub. The bottom end of 52 forms a spherical shape.

There is a partition seat 61 extending inside the seat body 60, and the partition seat 61 divides the inner space of the seat body 60 into an upper space 62 and a lower space 63, wherein the upper space 62 must be in a corresponding shape with the inner chamber 41 of the upper cover 40, separated A shaft tube 64 is arranged in the center of the seat 61, and a plurality of axial ribs 65 protrude from the inner peripheral wall of the shaft tube 64, and a groove 66 is recessed inside the bottom of the shaft tube 61. In addition, the bottom surface of the partition seat 61 corresponds to the permanent magnet of the wheel hub 50. A magnetically permeable material 67 is buried at the position 53, and the magnetically permeable material 67 can be made of sheet metal or any material with magnetically permeable properties.

The driving assembly 70 is composed of a circuit board and a stator assembly.

The bottom cover 80 must have a corresponding shape to the lower space 63 of the seat body 60 .

When the present invention is assembled, the driving assembly 70 is installed in the lower space 63 below the seat body 60 separating the seat 61, and then the bottom cover 80 is used to cover the bottom of the seat body 60, and a friction plate is placed in the groove 66 of the seat body 60. 55, and a bearing 54 is placed in the shaft tube 64, so that the mandrel 52 of the wheel hub 50 can be inserted and rotated in the bearing 54. At this time, the wheel hub 50 is just located in the upper space 62 of the seat body 60, and its inner peripheral side wall surface The permanent magnet 53 of the permanent magnet 53 corresponds to the stator group of the driving assembly 70 through the separation seat 61, and the upper cover 40 is covered on the top of the seat body 60, and the O-ring and the adhesive are glued and sealed therebetween.

The inner chamber 41 must be filled with cooling liquid, and the mandrel 52 is supported by the bearing 54 and is in single-point contact with the friction plate 55 through its bottom end. When the driving assembly 70 drives the hub 50 to rotate, the blades on the top surface of the hub 50 51 can induce the cooling liquid to flow, so that the cooling liquid is introduced by the water inlet pipe 42 and then discharged by the water outlet pipe 43. At this time, although the wheel hub 50 bears the pressure difference, because the permanent magnet 53 in the wheel hub 50 and the magnetic material of the separation seat 61 There is an attractive positioning force between 67, which can limit the floating and displacement of the hub 50, avoid friction between the blades 51 of the hub 50 and the upper cover 40, and will not generate the problem of the friction bearing 54 of the buckle.

As shown in Figure 6, the liquid-cooled pump provided by the second embodiment of the present invention is also composed of an upper cover 40, a hub 50, a base 60, a drive assembly 70 and a bottom cover 80. into, of which:

The bottom surface of the hub 50 surrounds the mandrel 52 and is embedded with a lower magnet 56 , and the bottom surface of the partition seat 61 of the seat body 60 surrounds the shaft tube 64 is embedded with a magnetic material 68 . And the lower attracting magnet 56 of wheel hub 50 must be mutually corresponding with the magnetically permeable material 68 of spacer seat 61, so, although wheel hub 50 bears pressure difference when rotating, because the magnetically conductive material 68 of the lower attracting magnet 56 of wheel hub 50 and spacer seat 61 The material 68 has a force of attraction and positioning, which can limit the floating and displacement of the hub 50 , avoid friction between the blades 51 of the hub 50 and the upper cover 40 , and avoid the problem of the friction bearing 54 of the buckle.

As shown in Figure 7, for the liquid-cooled pump provided by the third embodiment of the present invention, it can embed the lower magnet 56 at the position around the spindle 52 on the bottom surface of the hub 50, and place it on the separation seat of the seat body 60. The bottom surface of 61 is to embed magnetically conductive material 68 around the peripheral position of shaft tube 64, and the lower magnet 56 of hub 50 must correspond to the magnetically conductive material 68 of separation seat 61. A magnetically permeable material 67 is buried at the position corresponding to the permanent magnet 53 of the wheel hub 50 on the bottom surface of the seat 61 to provide a double suction effect.

Therefore, even if the wheel hub 50 is subjected to a pressure difference when it rotates, the upward floating displacement of the wheel hub 50 can be restricted by the suction and positioning force of the double downward suction, so as to avoid friction between the blades 51 of the wheel hub 50 and the upper cover 40, and no frictional bearing of the buckle will be generated. 54 questions.

By adopting the above design, the present invention can not only avoid the friction between the blades of the hub and the upper cover, but also avoid the problem of the friction bearing of the fastener, and has a long service life.

The above descriptions are only preferred embodiments of the present invention, and all equivalent structural changes made by using the description of the present invention, the scope of the patent application or the accompanying drawings should be included in the scope of the patent of the present invention.

Claims (18)

1. liquid cooling pump, it comprises a loam cake, a wheel hub, a pedestal, a driven unit and a bottom; Space and following space are distinguished with tap in described pedestal inside, described wheel hub is arranged on described going up in the space, described driven unit is arranged in the described space down, described loam cake is fixed in described pedestal top, and be provided with intake pipe and outlet pipe, described bottom is fixed on described pedestal bottom surface, it is characterized in that:

Set firmly bearing on the described tap, described wheel hub central authorities have can wear the axle of pulling and rotating in described bearing, and the inner circle wall face of described wheel hub is provided with permanent magnet, and corresponding described permanent magnet position, the tap bottom surface of described pedestal is provided with permeability magnetic material.

2. liquid cooling pump as claimed in claim 1 is characterized in that: described wheel hub bottom surface is and is surrounded on described axle location about place and is provided with down and inhales magnet, and the corresponding described magnet positions place of inhaling down, the tap bottom surface of described pedestal is provided with permeability magnetic material.

3. liquid cooling pump as claimed in claim 1 is characterized in that: described permeability magnetic material is a tinsel.

4. liquid cooling pump as claimed in claim 2 is characterized in that: described permeability magnetic material is a tinsel.

5. liquid cooling pump as claimed in claim 1 is characterized in that: described tap is provided with central siphon, and described central siphon bottom is provided with groove, and described bearing is arranged in the described central siphon, has inserted wearing piece in the described groove.

6. liquid cooling pump as claimed in claim 5 is characterized in that: described central siphon inner circle wall is equipped with a plurality of axial ribs.

7. liquid cooling pump as claimed in claim 1 is characterized in that: the bottom of described axle is spherical shape.

8. liquid cooling pump as claimed in claim 1 is characterized in that: described wheel hub end face is dashed forward and is established a plurality of vortex shape blades.

9. liquid cooling pump as claimed in claim 1 is characterized in that: described driven unit includes circuit board and stator pack.

10. liquid cooling pump as claimed in claim 1 is characterized in that: but described intake pipe and described outlet pipe all with cooling but the pipe-loop of flow of fluid connect and establish.

11. a liquid cooling pump, it comprises a loam cake, a wheel hub, a pedestal, a driven unit and a bottom; Space and following space are divided into tap in described pedestal inside, described wheel hub is arranged at described going up in the space, described driven unit is arranged in the described space down, described loam cake is fixed in described pedestal top, and be provided with intake pipe and outlet pipe, described bottom is fixed in described pedestal bottom surface, it is characterized in that:

Be installed with bearing on the described tap, described wheel hub central authorities have can wear the axle of pulling and rotating in described bearing, described wheel hub bottom surface is and is surrounded on described axle location about place and is provided with down and inhales magnet, and the corresponding described magnet positions place of inhaling down, the tap bottom surface of described pedestal is provided with permeability magnetic material.

12. liquid cooling pump as claimed in claim 11 is characterized in that: described permeability magnetic material is a tinsel.

13. liquid cooling pump as claimed in claim 11 is characterized in that: described tap is provided with central siphon, and described central siphon bottom is provided with groove, and described bearing places described central siphon, has inserted wearing piece in the described groove.

14. liquid cooling pump as claimed in claim 13 is characterized in that: described central siphon inner circle wall is equipped with a plurality of axial ribs.

15. liquid cooling pump as claimed in claim 11 is characterized in that: the bottom of described axle is spherical shape.

16. liquid cooling pump as claimed in claim 11 is characterized in that: described wheel hub end face is prominent establishes a plurality of vortex shape blades, and inner circle wall is provided with permanent magnet.

17. liquid cooling pump as claimed in claim 11 is characterized in that: described driven unit includes circuit board and stator pack.

18. liquid cooling pump as claimed in claim 11 is characterized in that: but described intake pipe and outlet pipe all with cooling but the pipe-loop of flow of fluid connect and establish.

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