CN223062740U - Self-cooling liquid cooling pump and liquid cooling system - Google Patents
Self-cooling liquid cooling pump and liquid cooling system Download PDFInfo
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- CN223062740U CN223062740U CN202422131076.XU CN202422131076U CN223062740U CN 223062740 U CN223062740 U CN 223062740U CN 202422131076 U CN202422131076 U CN 202422131076U CN 223062740 U CN223062740 U CN 223062740U
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Abstract
The application relates to a self-cooling liquid cooling pump and a liquid cooling system, wherein the self-cooling liquid cooling pump comprises a pump body component and a motor component, the pump body component comprises a pump shell and an impeller, the motor component comprises a shell and a rotor, the impeller is connected to the rotor, the shell is connected with the pump shell in a sealing way, a bearing gland is connected to the head end of the shell, a gap is reserved between the impeller and the bearing gland, and the gap is communicated with a shell cavity of the shell. The liquid cooling medium conveyed by the pump can be cited for cooling the motor, and the long-term stable operation of the liquid cooling pump and the liquid cooling system is ensured in a self-cooling mode.
Description
Technical Field
The application relates to the technical field of machine pumps, in particular to a self-cooling liquid cooling pump and a liquid cooling system.
Background
Aiming at the technology of a new generation of anhydrous liquid cooling system of a data center, the fluoride liquid is adopted to replace the traditional water cooling mode for cooling, and because the fluoride liquid has the characteristic of easy volatilization, the requirements on the sealing performance, the reliability, the space size and the energy conservation of a pump in an anhydrous cooling liquid cooling unit are higher by combining the characteristics of long service life, high system efficiency and small cabinet space of a liquid cooling system.
Meanwhile, the liquid cooling pump needs to follow the on-line operation time of the liquid cooling system for long, the liquid cooling pump needs to be subjected to heat dissipation and cooling, the conventional cooling mode generally adopts a water cooling mode, but based on the conveying of the fluoridation liquid and the smaller volume of the liquid cooling pump, the complete sealing of a water cooling cavity and a medium cavity is difficult to ensure, and the leakage of a water cooling medium into the fluoridation liquid is easy to cause, so that the provision of a relatively stable and reliable self-cooling liquid cooling pump is needed to be considered to keep the long-time heat dissipation operation of the liquid cooling pump.
Disclosure of utility model
The application aims to provide a self-cooling liquid cooling pump and a liquid cooling system, which can cool a motor by referring to liquid cooling medium conveyed by the pump, and ensure long-term stable operation of the liquid cooling pump and the liquid cooling system in a self-cooling mode.
In order to achieve the above object, in a first aspect, the present utility model provides a self-cooling liquid cooling pump, comprising a pump body assembly and a motor assembly;
The pump body assembly comprises a pump shell and an impeller, the motor assembly comprises a shell and a rotor, the impeller is connected to the rotor, and the shell is connected with the pump shell in a sealing way;
The head end of the shell is connected with a bearing gland, a gap is reserved between the impeller and the bearing gland, and the gap is communicated with a shell cavity of the shell.
In an alternative embodiment, the housing is spaced from the trailing end of the rotor;
the rotor is of a hollow structure and comprises a liquid return flow passage positioned at the axis, and the liquid return flow passage is communicated with the rotor in a front-back manner.
In an alternative embodiment, the head end of the rotor is provided with a rotor runner, the rotor runner comprises a plurality of channels, and each channel of the rotor runner is communicated with the liquid return channel.
In an alternative embodiment, a plurality of rotor flow channels are arranged in the same radial direction of the rotor, and are uniformly distributed in the circumferential direction of the rotor at intervals.
In an alternative embodiment, an inducer is mounted outside the head end of the rotor, and a liquid return hole is formed in the root of the inducer and opposite to the rotor flow channel.
In an alternative embodiment, a sealing ring is arranged at the connection part of the casing and the pump casing, and the sealing ring comprises at least two sealing rings and is distributed at intervals in the axial direction.
In an alternative embodiment, the rotor comprises a permanent magnet part positioned inside the casing, and a gap exists between the permanent magnet part and a casing cavity of the casing;
A head end bearing is arranged between the permanent magnet part and the impeller, and the head end bearing is fixed by pressing through the bearing gland;
And adjusting pads are respectively arranged between the head end bearing and the impeller and between the permanent magnet part and the head end bearing, and are sleeved on the rotor.
In an alternative embodiment, the rotor is further provided with a tail end bearing, the tail end bearing is fixed in a limiting manner through a fastening nut positioned at the tail end of the rotor, a gasket is arranged between the fastening nut and the tail end bearing, and the tail end bearing is fixed on the permanent magnet part in a compressing manner in the axial direction.
In an alternative embodiment, the head end bearing comprises angular contact bearings arranged in pairs, and the tail end bearing comprises a deep groove ball bearing;
The head end bearing and the tail end bearing are ceramic bearings.
In a second aspect, the present utility model provides a liquid cooling system comprising a self-cooling liquid cooling pump according to any one of the preceding embodiments.
Through setting up the clearance between impeller and bearing gland, combine the clearance and communicate with each other with the shell cavity of casing, can make the fluoridize liquid medium that the liquid cooling pump carried get into in the casing to cool off the inside rotor of motor, realize the cooling to the liquid cooling pump with the form of self-cooling.
Through the form of self-cooling, can effectively avoid the leakage of outside water-cooling medium in the liquid cooling pump, reduce the influence that the leakage material caused to the transport medium to carry out self-cooling through the fluoridized liquid medium of self-delivery, can keep the long-time heat dissipation of liquid cooling pump, strengthen the stability of liquid cooling pump operation.
Additional features and advantages of the application will be set forth in the detailed description which follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the internal structure of a self-cooling liquid cooling pump according to the present application;
FIG. 2 is a schematic diagram of the mating relationship of the impeller, inducer and rotor of the present application.
Icon:
1-pump body component, 11-pump shell and 12-impeller;
2-motor assembly, 21-shell, 22-rotor, 23-return channel, 24-rotor channel and 25-permanent magnet part;
3-bearing gland;
4-inducer, 41-liquid return hole;
5-a sealing ring;
6-head end bearing;
7-adjusting pad;
8-tail end bearings;
9-tightening the nut;
10-gasket.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put in use of the product of this application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, or may be directly connected, or may be indirectly connected through an intermediate medium, or may be in communication with the inside of two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The application discloses a self-cooling liquid cooling pump, which is mainly applied to an anhydrous liquid cooling system of a data center and relates to the transportation of a refrigerant medium of a fluorinated liquid.
The external water cooling form is optimized into a form of self-cooling through a self-conveying medium by changing the cooling form of the liquid cooling pump, so that the heat dissipation effect of the liquid cooling pump is improved, and the working condition requirements of a liquid cooling system and long-time stable operation of the liquid cooling pump can be met.
Referring to fig. 1-2, the self-cooling liquid cooling pump in the application comprises a pump body assembly 1 and a motor assembly 2.
The pump body component 1 is specifically used for pressurizing and conveying a fluorinated liquid refrigerant medium, and the motor component 2 is specifically used for driving an impeller 12 in the pump body component 1 to rotate so as to conduct pressurizing and guiding out of liquid materials.
Further, the pump body assembly 1 includes a pump casing 11 and an impeller 12, and the impeller 12 is mounted in the pump casing 11, and mainly participates in suction of a conveying medium and discharge after pressurization.
The motor assembly 2 includes a housing 21, a stator, and a rotor 22, with the impeller 12 coupled to the rotor 22 for synchronous rotation with the rotor 22.
Based on the application, the motor is cooled by the self-conveying medium, the shell 21 is connected with the pump shell 11 in a sealing way, so that the whole internal space of the liquid cooling pump is isolated and sealed from the outside, zero leakage of the fluoridized liquid medium is realized, and the conveying medium can enter the shell 21 to cool the motor assembly 2.
The head end of the casing 21 is connected with the bearing cover 3, and is mainly used for press-fitting and fixing the bearing in the casing 21, and meanwhile, the clearance reserved between the impeller 12 and the bearing cover 3 is combined, and the clearance is communicated with the casing cavity of the casing 21, so that the impeller 12 can be enabled, that is, conveying media in the casing 11 can enter the casing cavity of the casing 21 through the clearance, and self-cooling is facilitated through the conveying media.
In one particular embodiment, the self-cooling of the present application is essentially self-circulating cooling of the transport medium within the liquid cooling pump.
Specifically, after the conveying medium enters the casing cavity of the casing 21, in order to be able to circulate back to the impeller 12, the casing 21 leaves a gap at the tail end of the rotor 22, forming a tail gap for the conveying medium to circulate back.
Further, the delivery medium is circulated back to the impeller 12 near the head end, specifically through the interior of the rotor 22. The rotor 22 in this embodiment has a hollow structure and includes a liquid return flow channel 23 at the axis, and the transport medium specifically returns back through the liquid return flow channel 23.
Preferably, the liquid return flow path 23 penetrates the rotor 22 in the axial direction, and can circulate the conveyance medium cooled by the motor assembly 2 at the trailing end.
From the standpoint of facilitating the outflow of the medium circulated back to the head end of the rotor 22 from the inside of the rotor 22, the head end of the rotor 22 is provided with rotor flow passages 24, the rotor flow passages 24 comprising a plurality of channels, each rotor flow passage 24 communicating with the return flow passage 23. By this arrangement, the dynamic flow of the conveying medium circulating inside and outside the head and tail ends of the rotor 22 can be formed, and the rotor 22 and the direct current coil of the stator of the motor assembly 2 can be effectively cooled.
In order to ensure stable outflow of the conveying medium, the plurality of rotor flow passages 24 are provided in the same radial direction of the rotor 22 and are uniformly distributed in the circumferential direction of the rotor 22 at intervals, so that the conveying medium can be uniformly discharged from the head end portion during the flow of the rotor 22.
An inducer 4 is mounted on the outer side of the head end of the rotor 22, and a liquid return hole 41 is formed in the root of the inducer 4, and the liquid return hole 41 is opposite to the rotor runner 24. Specifically, the inducer 4 is screwed to the outside of the head end of the rotor 22, and after the inducer is screwed in place, the liquid return hole 41 at the root of the inducer 4 is opposite to the rotor flow channel 24, so that the circulating cooling medium after heat absorption and temperature rise can be discharged through the liquid return flow channel 23, the rotor flow channel 24 and the liquid return hole 41 in sequence.
The inducer 4 in the present embodiment, in particular, in the form of following the synchronous rotation of the impeller 12 and the rotor 22, participates in the cooling cycle of the self-cooling medium.
Based on the characteristics of the centrifugal pump, the inducer 4 and the impeller 12 positioned at the center have a certain suction force, when the rotation pressurizes the conveying medium, most of the conveying medium is led out from the liquid outlet on the pump shell 11, and a small part of the self-cooling medium after pressurization enters the shell 21 through the gap between the impeller 12 and the bearing gland 3, so that the motor assembly 2 is cooled on one hand, and the bearings inside the shell 21 are lubricated on the other hand. Because the interior of the casing 21 is a unified integral casing cavity, the pressure in the casing cavity is consistent, and the self-cooling medium can be circulated back to the root of the inducer 4 through the space structure based on the suction force of the inducer 4 and the impeller 12 part by combining the arrangement of the tail clearance and the communication relation among the tail clearance, the return flow channel 23, the rotor flow channel 24 and the return flow hole 41, so that the dynamic circulation flow of the self-cooling medium is realized.
The self-cooling medium absorbs heat generated by the motor in the cooling circulation loop and raises the temperature of the self-cooling medium, and after the self-cooling medium reaches the root of the inducer 4, the self-cooling medium can perform a sufficient heat exchange process with the sucked conveying medium under the rotation action of the inducer 4, so that the temperature in the pump is maintained stable.
For the dynamic flow of self-cooling medium in the internal circulation between the pump body component 1 and the motor component 2, in order to prevent the leakage of the fluoride liquid, the connection part of the shell 21 and the pump shell 11 is provided with a sealing ring 5, and the sealing ring 5 comprises at least two channels and is distributed at intervals in the axial direction, so that a plurality of channels of seals can be formed, and the reliability and stability of the integral seal of the liquid cooling pump are ensured by the structure of the plurality of channels of static seals.
In another specific embodiment, the rotor 22 includes a permanent magnet portion 25 located inside the casing 21 and rotating relative to the stator dc coil on the casing 21, and a gap exists between the permanent magnet portion 25 and the casing cavity of the casing 21, so that the circulating self-cooling medium can be filled in the gap, and thus, heat generated by the motor assembly 2 can be timely discharged in combination with the dynamic flow of the self-cooling medium.
A head end bearing 6 is arranged between the permanent magnet part 25 and the impeller 12, and the head end bearing 6 is fixed by pressing the bearing gland 3 in the axial direction.
In order to ensure the stable press-fit of the impeller 12, the head end bearing 6 and the permanent magnet part 25, the adjusting pads 7 are respectively arranged between the head end bearing 6 and the impeller 12 and between the permanent magnet part 25 and the head end bearing 6, and the adjusting pads 7 are sleeved on the outer side wall of the rotor 22 and respectively press-fit with the inner ring of the head end bearing 6, so that the synchronous rotation reliability and stability of the different components can be ensured.
The rotor 22 is also provided with the tail end bearing 8, the tail end bearing 8 is subjected to limiting and fixed installation in the axial direction through a fastening nut 9 positioned at the tail end of the rotor 22, a gasket 10 is arranged between the fastening nut 9 and the tail end bearing 8, and the gasket 10 is in press fit with the inner ring of the tail end bearing 8, so that stable installation of the tail end bearing 8 can be ensured.
By tightening the nut 9 and the washer 10, the permanent magnet portion 25 can be pressed and fixed in the axial direction by the tail end bearing 8, so that the rotor 22 and the auxiliary structure on the rotor 22 can be stably combined from front to back in sequence, and the operation can be ensured to be effective and reliable.
The head end bearing 6 comprises angular contact bearings arranged in pairs, the tail end bearing 8 comprises a deep groove ball bearing, and further, the head end bearing 6 and the tail end bearing 8 are ceramic bearings. Through the form of mixed ceramic antifriction bearing, can guarantee the high reliability of liquid cooling system operation to can solve the multiple operating mode of liquid cooling system and use, lead to the fact the unstability problem that influences life of bearing easily.
The utility model also provides a liquid cooling system which comprises the self-cooling liquid cooling pump, and can form long-term stable and efficient operation of the liquid cooling system through the heat removal of the self-cooling medium and the lubrication action of the bearing.
It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The self-cooling liquid cooling pump is characterized by comprising a pump body assembly and a motor assembly;
The pump body assembly comprises a pump shell and an impeller, the motor assembly comprises a shell and a rotor, the impeller is connected to the rotor, and the shell is connected with the pump shell in a sealing way;
The head end of the shell is connected with a bearing gland, a gap is reserved between the impeller and the bearing gland, and the gap is communicated with a shell cavity of the shell.
2. The self-cooling liquid cooling pump of claim 1 wherein the housing is spaced from the trailing end of the rotor;
the rotor is of a hollow structure and comprises a liquid return flow passage positioned at the axis, and the liquid return flow passage is communicated with the rotor in a front-back manner.
3. The self-cooling liquid cooling pump as claimed in claim 2, wherein the head end of the rotor is provided with a rotor flow passage, the rotor flow passage comprising a plurality of channels, each of the rotor flow passages communicating with the return flow passage.
4. A self-cooling liquid cooling pump according to claim 3, wherein a plurality of the rotor flow passages are arranged in the same radial direction of the rotor and are uniformly distributed at intervals in the circumferential direction of the rotor.
5. A self-cooling liquid cooling pump according to claim 3, wherein an inducer is mounted on the outer side of the head end of the rotor, and a liquid return hole is formed in the root of the inducer, and the liquid return hole is opposite to the rotor flow channel.
6. A self-cooling liquid cooling pump as claimed in any one of claims 1-5 wherein a seal ring is provided at a connection portion of said casing and said pump casing, said seal ring comprising at least two channels and being arranged at intervals in an axial direction.
7. The self-cooling liquid cooling pump according to claim 6, wherein the rotor comprises a permanent magnet portion inside the housing, a gap being present between the permanent magnet portion and a housing cavity of the housing;
A head end bearing is arranged between the permanent magnet part and the impeller, and the head end bearing is fixed by pressing through the bearing gland;
And adjusting pads are respectively arranged between the head end bearing and the impeller and between the permanent magnet part and the head end bearing, and are sleeved on the rotor.
8. The self-cooling liquid cooling pump according to claim 7, wherein a tail end bearing is further installed on the rotor, the tail end bearing is fixed in a limiting manner through a fastening nut positioned at the tail end of the rotor, a gasket is installed between the fastening nut and the tail end bearing, and the tail end bearing is fixed to the permanent magnet portion in a compressing manner in the axial direction.
9. The self-cooling liquid pump of claim 8, wherein the head end bearing comprises angular contact bearings arranged in pairs and the tail end bearing comprises a deep groove ball bearing;
The head end bearing and the tail end bearing are ceramic bearings.
10. A liquid cooling system comprising the self-cooling liquid cooling pump of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422131076.XU CN223062740U (en) | 2024-08-30 | 2024-08-30 | Self-cooling liquid cooling pump and liquid cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422131076.XU CN223062740U (en) | 2024-08-30 | 2024-08-30 | Self-cooling liquid cooling pump and liquid cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223062740U true CN223062740U (en) | 2025-07-04 |
Family
ID=96207877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422131076.XU Active CN223062740U (en) | 2024-08-30 | 2024-08-30 | Self-cooling liquid cooling pump and liquid cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223062740U (en) |
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2024
- 2024-08-30 CN CN202422131076.XU patent/CN223062740U/en active Active
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