Data center low-noise liquid pump and cold plate type liquid cooling system

Abstract

The invention discloses a low-noise liquid pump of a data center and a cold plate type liquid cooling system. The low-noise liquid pump comprises an inner rotor and an outer rotor, the inner rotor comprises a rotor body and worm claw parts which are uniformly distributed along the outer circumference of the rotor body; the outer rotor comprises a rotor outer ring and worm claw grooves which are uniformly distributed along the inner circumference of the rotor outer ring, and the worm claw grooves and the worm claw parts are arranged in a one-to-one correspondence manner; the sliding assembly is connected to the worm claw part and the worm claw groove; when eccentric motion is generated between the inner rotor and the outer rotor, the worm claw part does eccentric reciprocating motion along the worm claw groove, and the sliding assembly moves along the worm claw part and the worm claw groove, so that the worm claw groove forms a space with continuously changed volume for fluid conveying. The worm claw groove can be divided into a plurality of spaces with the volume continuously changing, the requirement that fluid is conveyed at multiple inlets and multiple outlets at the same time is met, friction abrasion between the inner rotor and the outer rotor of the liquid pump can be reduced, meanwhile, the conveying amount of the fluid is increased, and the utilization rate of the fluid is higher.

Description

Technical Field

[0001] The invention relates to a low-noise liquid pump and a cold plate type liquid cooling system for a data center. Background Art

[0002] Data centers are the core of modern information technology infrastructure, containing a large number of servers and storage devices for processing, storing, and transmitting large amounts of data. Servers are one of the most critical components in a data center, responsible for running applications and services.

[0003] Data centers generate a lot of heat when processing high-load tasks, so heat dissipation is an important issue in data center design and operation.

[0004] In the prior art, a cooling system composed of rotating machinery or fluid machinery is generally used for heat dissipation. During operation, the two rotors of the rotating machinery or fluid machinery need to contact each other, which will generate heat due to friction and wear. In addition, only one inlet can be used for inflow and one outlet can be used for outflow, which is inefficient. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies in the existing technology and provide a technical solution for a low-noise liquid pump and a cold plate liquid cooling system for a data center. The solution not only divides the volute groove into multiple spaces with continuously changing volumes, meeting the requirement of simultaneous fluid delivery at multiple inlets and outlets, but also reduces friction and wear between the inner rotor and the outer rotor, facilitates heat dissipation, and increases the fluid delivery rate, thereby achieving higher fluid utilization.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A low-noise liquid pump for a data center, comprising inner rotor; and an outer rotor, wherein the inner rotor cooperates with the outer rotor to form a worm claw groove; Its characteristics are: The inner rotor and the outer rotor are eccentrically arranged; The inner rotor includes a rotor body and at least three worm claws evenly distributed along the outer circumference of the rotor body; The outer rotor includes a rotor outer ring and at least three worm claw grooves evenly distributed along the inner circumference of the rotor outer ring, wherein the worm claw grooves are arranged in a one-to-one correspondence with the worm claw portions; It also includes at least three sliding assemblies, the sliding assemblies being connected to the worm claw portion and the worm claw groove; When eccentric motion occurs between the inner rotor and the outer rotor, the worm claw portion performs eccentric reciprocating motion along the worm claw groove, and the sliding assembly moves along the worm claw portion and the worm claw groove, so that the worm claw groove forms a space with continuously changing volume for fluid transportation.

[0007] Through the design of the above structure, not only can the worm groove be divided into multiple spaces with continuously changing volumes, meeting the requirements of simultaneous fluid delivery at multiple inlets and outlets, but also the friction and wear between the inner rotor and the outer rotor can be reduced, and it is conducive to heat dissipation, while increasing the fluid delivery volume and making the fluid utilization rate higher.

[0008] Furthermore, the sliding assembly includes a slider and a guide groove. The guide groove is respectively provided on each worm claw portion. The slider telescopes and moves along the guide groove. The end of the slider rests against the inner wall of the worm claw groove and slides along the worm claw groove. The guide groove can rotate synchronously with the worm claw portion, thereby enabling the slider to generate centrifugal force, so that the worm claw grooves on both sides of the slider are in a separated state, meeting the requirements of simultaneously conveying fluids from multiple inlets and outlets.

[0009] Furthermore, the slider includes a block and a contact surface provided at one end of the block. The block matches the guide groove, and the contact surface contacts the worm claw groove, ensuring that during the engagement of the worm claw part and the worm claw groove, the block can telescopically move along the guide groove, and the contact surface slides along the inner wall of the guide groove.

[0010] Furthermore, the worm claw portion includes a first outer meshing segment protruding radially outward along the rotor body, and two adjacent first outer meshing segments cooperate to form a second outer meshing segment. The second outer meshing segment is recessed radially inward along the rotor body, which is conducive to a smooth transition between the first outer meshing segment and the second outer meshing segment and reduces the impact of the fluid.

[0011] Furthermore, the worm groove includes a first inner meshing section which is provided on the inner wall of the rotor outer ring and protrudes radially outward along the outer ring of the rotor. Two adjacent first inner meshing sections cooperate to form a second inner meshing section which is recessed radially inward along the outer ring of the rotor, which is conducive to a smooth transition between the first inner meshing section and the second inner meshing section and reduces the impact of the fluid.

[0012] Furthermore, the first outer meshing segment, the second outer meshing segment, the first inner meshing segment and the second inner meshing segment all have arc structures.

[0013] Furthermore, the radius of the first outer meshing segment is greater than the radius of the second outer meshing segment, and the radius of the first inner meshing segment is greater than the radius of the second inner meshing segment.

[0014] Furthermore, the size of the worm groove is larger than that of the worm portion, which is conducive to forming a space with continuously changing volume.

[0015] Furthermore, the worm claw portions and the worm claw grooves are distributed in a plum blossom shape, which is beneficial to the stable engagement of the inner rotor and the outer rotor during rotation and improves the fluid conveying efficiency.

[0016] Furthermore, the inner rotor drives the outer rotor to perform synchronous rotational motion in the same direction, or the outer rotor is fixed and the inner rotor creeps inside the outer rotor, thereby enabling the fluid to flow in the worm groove and expanding the scope of application.

[0017] A cold plate liquid cooling system includes a water-cooled server and a cold liquid distribution device installed indoors, and a cooling tower and a chiller installed outdoors. A first heat exchanger and a CPU are provided in the water-cooled server, and the CPU is connected to the first heat exchanger. A second heat exchanger and a liquid pump are provided in the cold liquid distribution device. The second heat exchanger is connected to the first heat exchanger through a cold water pipe and a hot water pipe. The liquid pump is provided on the cold water pipe, and the second heat exchanger is connected to the cooling tower and the chiller. The characteristic is that the liquid pump adopts the low-noise liquid pump of the data center as mentioned above; the cold plate cold liquid system not only reduces noise during operation, but also reduces wear and tear, thereby extending the service life of the liquid cooling system.

[0018] The present invention has the following beneficial effects due to the adoption of the above technical solution: 1. The present invention can not only divide the worm groove into multiple spaces with continuously changing volumes, meeting the requirement of simultaneously conveying the fluid at multiple inlets and outlets, but also reduce the friction and wear between the inner rotor and the outer rotor, and is conducive to heat dissipation, while increasing the fluid conveying capacity and making the fluid utilization rate higher.

[0019] 2. The guide groove can rotate synchronously with the worm claw part, which can make the slider generate centrifugal force, so that the worm claw grooves on both sides of the slider are in a separated state, meeting the requirements of simultaneously conveying fluids from multiple inlets and outlets.

[0020] 3. The inner rotor drives the outer rotor to rotate synchronously in the same direction, or the outer rotor is fixed and the inner rotor creeps inside the outer rotor, so that the fluid flows in the worm groove and the application range is expanded.

[0021] 4. The cold plate type cooling liquid system of the present invention not only reduces noise during operation, but also reduces wear and tear, thereby extending the service life of the liquid cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 This is a rendering of a low-noise liquid pump for a data center and a liquid pump in a cold plate type liquid cooling system according to the present invention; Figure 2 for Figure 1 The main view; Figure 3 Schematic diagram of the structure of the inner rotor in the present invention; Figure 4 Schematic diagram of the structure of the outer rotor in the present invention; Figure 5 It is a structural schematic diagram of the slider in the present invention; Figure 6 It is a structural schematic diagram of the intercooler plate liquid cooling system of the present invention.

[0023] In the figure: 1-inner rotor; 101-rotor body; 102-worm claw portion; 103-guide groove; 104-first outer meshing section; 105-second outer meshing section; 2-outer rotor; 201-rotor outer ring; 202-first inner meshing section; 203-second inner meshing section; 3- worm groove; 4- slider; 401- block; 402- contact surface; 5-Water-cooled server; 6-Cold liquid distribution device; 7-First heat exchanger; 8-CPU; 9-Second heat exchanger; 10-Liquid pump; 11-Cold water pipe; 12-Hot water pipe; 13-Cooling tower; 14-Chiller. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first," "second," and so on in the description and claims of the present invention and the accompanying drawings are used to distinguish similar items and are not necessarily used to describe a specific order or precedence. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0027] like Figures 1 to 5 As shown in the figure, a low-noise liquid pump and cold plate liquid cooling system for a data center according to the present invention comprises an inner rotor 1 and an outer rotor 2 , wherein the inner rotor 1 cooperates with the outer rotor 2 to form a worm groove 3 .

[0028] The inner rotor 1 and the outer rotor 2 are eccentrically arranged.

[0029] The inner rotor 1 drives the outer rotor 2 to rotate synchronously in the same direction, or the outer rotor 2 is fixed and the inner rotor 1 creeps inside the outer rotor 2, so that the fluid flows in the worm groove 3, thereby expanding the scope of application.

[0030] The inner rotor 1 includes a rotor body 101 and at least three worm claws 102 evenly distributed along the outer circumference of the rotor body 101 . This application takes four worm claws 102 as an example for description.

[0031] The outer rotor 2 includes a rotor outer ring 201 and at least three worm claw grooves 3 evenly distributed along the inner circumference of the rotor outer ring 201. This application takes four worm claw grooves 3 as an example for description. The worm claw grooves 3 are arranged in a one-to-one correspondence with the worm claw parts 102.

[0032] The worm claw portion 102 includes a first outer meshing segment 104 that protrudes radially outward along the rotor body 101. Two adjacent first outer meshing segments 104 cooperate to form a second outer meshing segment 105. The second outer meshing segment 105 is recessed radially inward along the rotor body 101, which is conducive to a smooth transition between the first outer meshing segment 104 and the second outer meshing segment 105 and reduces the impact of the fluid.

[0033] The worm groove 3 includes a first inner meshing segment 202 which is provided on the inner wall of the rotor outer ring 201 and protrudes radially outward along the rotor outer ring 201. Two adjacent first inner meshing segments 202 cooperate to form a second inner meshing segment 203 which is recessed radially inward along the rotor outer ring 201, which is conducive to a smooth transition between the first inner meshing segment 202 and the second inner meshing segment 203 and reduces the impact of the fluid.

[0034] The first outer meshing section 104 , the second outer meshing section 105 , the first inner meshing section 202 and the second inner meshing section 203 are all in an arc structure.

[0035] The radius of the first outer meshing segment 104 is greater than the radius of the second outer meshing segment 105 , and the radius of the first inner meshing segment 202 is greater than the radius of the second inner meshing segment 203 .

[0036] The size of the worm groove 3 is larger than that of the worm portion 102 , which is conducive to forming a space with continuously changing volume.

[0037] The worm claw portions 102 and the worm claw grooves 3 are distributed in a plum blossom shape, which is beneficial to the stable engagement of the inner rotor 1 and the outer rotor 2 during the rotation process, thereby improving the fluid conveying efficiency.

[0038] It also includes at least three sliding components. This application takes three sliding components as an example for explanation. The sliding components are connected to the worm claw portion 102 and the worm claw groove 3.

[0039] The sliding assembly includes a slider 4 and a guide groove 103. The guide groove 103 is respectively provided on each worm claw portion 102. The slider 4 telescopically moves along the guide groove 103. The end of the slider 4 abuts against the inner wall of the worm claw groove 3 and slides along the worm claw groove 3. The guide groove 103 can rotate synchronously with the worm claw portion 102, thereby enabling the slider 4 to generate centrifugal force, so that the worm claw grooves 3 on both sides of the slider 4 are in a separated state, meeting the requirement of simultaneously conveying fluids from multiple inlets and outlets.

[0040] The slider 4 includes a block 401 and a contact surface 402 provided at one end of the block 401. The block 401 matches the guide groove 103, and the contact surface 402 contacts the worm groove 3 to ensure that during the engagement of the worm claw part 102 and the worm claw groove 3, the block 401 can telescopically move along the guide groove 103, and the contact surface 402 slides along the inner wall of the guide groove 103.

[0041] When eccentric motion occurs between the inner rotor 1 and the outer rotor 2, the worm claw portion 102 performs eccentric reciprocating motion along the worm claw groove 3, and the sliding assembly moves along the worm claw portion 102 and the worm claw groove 3, so that the worm claw groove 3 forms a space with continuously changing volume for fluid transportation.

[0042] The above-described structural design not only divides the worm groove 3 into multiple spaces of continuously varying volumes, satisfying the requirement for simultaneous fluid delivery at multiple inlets and outlets, but also reduces friction and wear between the inner rotor 1 and the outer rotor 2, facilitates heat dissipation, and increases the fluid delivery rate, thereby achieving higher fluid utilization. The fluid can be either gas or liquid.

[0043] like Figure 6 As shown, a cold plate liquid cooling system of the present invention includes a water-cooled server 5 and a cold liquid distribution device 6 arranged indoors, a cooling tower 13 and a chiller 14 arranged outdoors, a first heat exchanger 7 and a CPU 8 are provided in the water-cooled server 5, the CPU 8 is connected to the first heat exchanger 7, a second heat exchanger 9 and a liquid pump 10 are provided in the cold liquid distribution device 6, the second heat exchanger 9 is connected to the first heat exchanger 7 through a cold water pipe 11 and a hot water pipe 12, the liquid pump 10 is provided on the cold water pipe 11, the second heat exchanger 9 is connected to the cooling tower 13 and the chiller 14, and the liquid pump 10 adopts the low-noise liquid pump of the data center as mentioned above; the cold plate cold liquid system not only reduces noise during operation, but also reduces wear and tear, thereby extending the service life of the liquid cooling system.

[0044] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications based on the present invention to achieve substantially the same technical effects are all within the scope of protection of the present invention.

Claims

1. A low-noise liquid pump for a data center, comprising inner rotor; and an outer rotor, wherein the inner rotor cooperates with the outer rotor to form a worm claw groove; Its characteristics are: The inner rotor and the outer rotor are eccentrically arranged; The inner rotor includes a rotor body and at least three worm claws evenly distributed along the outer circumference of the rotor body; The outer rotor includes a rotor outer ring and at least three worm claw grooves evenly distributed along the inner circumference of the rotor outer ring, wherein the worm claw grooves are arranged in a one-to-one correspondence with the worm claw portions; It also includes at least three sliding assemblies, wherein the sliding assemblies are connected to the worm claw portion and the worm claw groove; When eccentric motion occurs between the inner rotor and the outer rotor, the worm claw portion performs eccentric reciprocating motion along the worm claw groove, and the sliding assembly moves along the worm claw portion and the worm claw groove, so that the worm claw groove forms a space with continuously changing volume for fluid transportation.

2. The low-noise liquid pump for a data center according to claim 1, characterized in that: The sliding assembly includes a slider and a guide groove, wherein the guide groove is respectively provided on each of the worm claw parts. The slider telescopically moves along the guide groove. The end of the slider abuts against the inner wall of the worm claw groove and slides along the worm claw groove.

3. The low-noise liquid pump for a data center according to claim 2, characterized in that: The sliding block includes a block body and a contact surface provided at one end of the block body, the block body matches the guide groove, and the contact surface abuts against the worm claw groove.

4. The low-noise liquid pump for a data center according to claim 1, characterized in that: The worm claw portion includes a first outer meshing segment protruding radially outward along the rotor body, two adjacent first outer meshing segments cooperate to form a second outer meshing segment, and the second outer meshing segment is recessed radially inward along the rotor body.

5. The low-noise liquid pump for a data center according to claim 4, characterized in that: The worm groove includes a first inner meshing segment provided on the inner wall of the rotor outer ring and protruding outward in the radial direction of the rotor outer ring. Two adjacent first inner meshing segments cooperate to form a second inner meshing segment recessed inward in the radial direction of the rotor outer ring. The first outer meshing segment, the second outer meshing segment, the first inner meshing segment and the second inner meshing segment all have an arc structure.

6. The low-noise liquid pump for a data center according to claim 5, characterized in that: The radius of the first outer meshing segment is greater than the radius of the second outer meshing segment, and the radius of the first inner meshing segment is greater than the radius of the second inner meshing segment.

7. The low-noise liquid pump for a data center according to claim 1, characterized in that: The size of the worm groove is larger than the size of the worm portion.

8. The low-noise liquid pump for a data center according to claim 1, characterized in that: The worm claw portion and the worm claw groove are distributed in a plum blossom shape.

9. The low-noise liquid pump for a data center according to claim 1, characterized in that: The inner rotor drives the outer rotor to perform synchronous rotational motion in the same direction, or the outer rotor is fixed and the inner rotor creeps inside the outer rotor to achieve fluid flow in the worm groove.

10. A cold plate liquid cooling system, comprising a water-cooled server and a cold liquid distribution device located indoors, and a cooling tower and a chiller located outdoors. The water-cooled server is provided with a first heat exchanger and a CPU, the CPU being connected to the first heat exchanger. The cold liquid distribution device is provided with a second heat exchanger and a liquid pump, the second heat exchanger being connected to the first heat exchanger via a cold water pipe and a hot water pipe, the liquid pump being provided on the cold water pipe, and the second heat exchanger being connected to the cooling tower and the chiller. The system is characterized in that: The liquid pump is a data center low-noise liquid pump as claimed in any one of claims 1 to 9.

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