CN113371234A

CN113371234A - Liquid cooling structure and case shell

Info

Publication number: CN113371234A
Application number: CN202110542068.2A
Authority: CN
Inventors: 涂云宏; 阎绍禄; 李壮; 张东伟; 梁学锋; 李介民
Original assignee: Beijing Ucas Technology Co ltd
Current assignee: Beijing Ucas Technology Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-09-10

Abstract

The present disclosure relates to a liquid cooling structure technology field, especially, relates to a liquid cooling structure and a chassis housing. The liquid cooling structure can be integrated with the case shell, and a liquid cooling plate does not need to be additionally arranged on the case shell, so that the structure of the case shell is simplified, and meanwhile, the weight of the case shell is also reduced. Simultaneously the liquid cooling structure includes the plate body, and the surface of plate body is provided with many sand grips, and two arbitrary adjacent sand grips form the guide slot that is used for leading and installing the template in the case casing to set up the template in the case casing. The plate body is internally provided with a plurality of flow channels, the flow channels are used for cooling substances to flow, the heat of the plate body is dissipated through the flow of the cooling substances, and the main heat is dissipated by the template because the template is arranged in the guide groove, so that the heat of the template can be dissipated after being dissipated, the heat dissipation effect is improved, and the thermal resistance is reduced.

Description

Liquid cooling structure and case shell

Technical Field

The present disclosure relates to a liquid cooling structure technology field, especially, relates to a liquid cooling structure and a chassis housing.

Background

With the propulsion of manned space engineering, the heat control technology of the spacecraft is an active heat control technology which is mainly liquid cooling and is switched from passive heat control of a traditional satellite platform to a space station. The liquid cooling plate is a key component of a liquid cooling system, long-term stable and reliable work of the liquid cooling plate provides key guarantee for a space station information system and an experimental system, and the spacecraft has a harsh launching operation environment and puts forward harsh requirements on various aspects of the space cooling plate, wherein the space cooling plate mainly comprises high heat exchange, low flow resistance, light weight as far as possible, and the space cooling plate can bear harsh vibration impact during launching and separation, and can resist high pressure and the like.

The traditional space flight liquid cooling plate and the case shell are manufactured in a split mode, the liquid cooling plate is of a simple flat plate structure, bearing force is basically not needed, the structural strength can be low, and the problems of high thermal resistance and high weight easily exist due to the fact that the liquid cooling plate and the case shell are manufactured in the split mode.

Disclosure of Invention

In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a liquid cooling structure and a chassis housing.

The utility model provides a liquid cooling structure, liquid cooling structure can with quick-witted case casing integrated into one piece, the liquid cooling structure includes: a plate body;

a plurality of convex strips are arranged on the surface of the plate body, and any two adjacent convex strips form a guide groove for guiding and installing a template in the case shell;

a plurality of flow channels are formed in the plate body and are used for cooling substances to flow, and heat of the plate body is dissipated through the flowing of the cooling substances.

Optionally, a plurality of weight reduction grooves are formed in each convex strip to reduce the weight of the convex strip.

Optionally, the plate body is perforated by a drill to form a hole, and the opening of the hole is blocked to form the flow channel.

Optionally, the opening of the hole is welded and plugged by argon arc welding.

Optionally, the flow channels include a first flow channel, a second flow channel, and a plurality of third flow channels, the cooling material flows into the third flow channel through the first flow channel, and flows to the second flow channel through the third flow channels, and the cooling material is discharged through the second flow channels.

Optionally, the first flow channel and the second flow channel are both perpendicular to the third flow channel.

Optionally, the plate body has an inlet for inflow of the cooling material and an outlet for outflow of the cooling material, the inlet being in communication with the first flow passage, and the outlet being in communication with the second flow passage.

Optionally, a plurality of groups of third flow channels are provided, and a reinforcing rib is provided between two adjacent groups of third flow channels.

Optionally, the plate body is made of aluminum alloy 7a 04.

The present disclosure also provides a chassis housing, including: two liang of roof, bottom plate and two curb plates that link to each other, at least one in roof and the bottom plate is the liquid cooling structure.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the liquid cooling structure that this disclosed embodiment provided, this liquid cooling structure can with chassis casing integrated into one piece, need not additionally set up liquid cold drawing on the chassis casing, consequently simplified the structure of chassis casing, still reduced the weight of chassis casing simultaneously. Simultaneously the liquid cooling structure includes the plate body, and the surface of plate body is provided with many sand grips, and two arbitrary adjacent sand grips form the guide slot that is used for leading and installing the template in the case casing to set up the template in the case casing. The plate body is internally provided with a plurality of flow channels, the flow channels are used for cooling substances to flow, the heat of the plate body is dissipated through the flow of the cooling substances, and the main heat is dissipated by the template because the template is arranged in the guide groove, so that the heat of the template can be dissipated after being dissipated, the heat dissipation effect is improved, and the thermal resistance is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a liquid cooling structure according to an embodiment of the disclosure;

fig. 2 is a schematic structural view of a liquid-cooled structure after punching according to an embodiment of the disclosure;

FIG. 3 is a side view of a liquid-cooled structure according to an embodiment of the disclosure;

fig. 4 is a cross-sectional view of a liquid-cooled structure according to an embodiment of the disclosure.

Wherein the content of the first and second substances,

1. a plate body; 11. a convex strip; 111. a weight reduction groove; 12. a guide groove; 13. a flow channel; 131. a first flow passage; 132. a second flow passage; 133. a third flow path; 14. an aperture; 15. an inlet; 16. an outlet; 17. reinforcing ribs; 18. a first channel; 19. a second channel.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

In the prior art, the traditional space liquid cooling plate and the case shell are manufactured in a split mode, are simple flat plate structures, basically do not need bearing force, are low in structural strength, and become the primary consideration factors of light weight and low thermal resistance along with the rapid increase of heat consumption of electronic equipment of a space station. But because the liquid cooling board and the machine case casing components of a whole that can function independently preparation, the machine case casing preparation is accomplished earlier, two liang of roof, bottom plate and two curb plates that are about to the machine case casing link to each other, then pastes the liquid cooling board at the surface of roof, and this design has the problem that the thermal resistance is high and weight is big easily.

Based on this, the embodiment of the application provides a liquid cooling structure, and the problem that thermal resistance is high and weight is big has been solved.

Referring to fig. 1 to 4, embodiments of the present disclosure provide a liquid cooling structure, which can be integrally formed with a chassis housing without additionally providing a liquid cooling plate on the chassis housing, thereby simplifying the structure of the chassis housing and reducing the weight of the chassis housing. Meanwhile, the liquid cooling structure comprises a plate body 1, a plurality of convex strips 11 are arranged on the surface of the plate body 1, and any two adjacent convex strips 11 form a guide groove 12 for guiding and installing a template in the case shell, so that the template is arranged in the case shell. A plurality of flow channels 13 are formed in the plate body 1, the flow channels 13 are used for cooling substances to flow, heat of the plate body 1 is dissipated through the flowing of the cooling substances, and the main heat is dissipated through the template which is arranged in the guide groove 12, so that the heat of the template can be dissipated after the heat of the plate body 1 is dissipated, the heat dissipation effect is improved, and the thermal resistance is reduced.

Because the liquid cooling structure can be the optimum method with quick-witted case casing integrated into one piece, but the intensity of current liquid cooling board is relatively weak, hardly accords with the requirement of quick-witted case casing to intensity. If the simple replacement material is stainless steel or titanium alloy, the weight resource is difficult to bear, so the aluminum alloy 7A04 with high strength in the compatibility catalogue is selected, the aluminum alloy 7A04 has higher strength and corrosion stability, the requirement of the case shell of the sealing machine on the strength can be met, and the problems of compatibility, mechanical strength and pressure resistance are solved.

After the aluminum alloy 7A04 is adopted, if a traditional vacuum brazing process is adopted and a fin structure (radiating fin) is added, because the fin structure is thin, individual local points always have the condition of unsatisfactory quality after welding after the vacuum brazing is adopted, and the excess is generated in the vacuum brazing process, the hidden trouble which is difficult to eliminate exists in the control design of the excess, so the radiating flow channel 13 is formed by adopting a punching mode, the excess in the hole 14 can be cleaned after the punching, and the excess (residue) does not exist in the flow channel 13, thereby ensuring the effective control of the excess.

The compatibility list is a list of allowed materials. The compatibility means that working medium (liquid, which can be understood as water) and materials (such as pipelines, liquid cooling plates and the like) in contact with the working medium are not corroded and chemically reacted, and the working medium can be compatible for a long time and coexists for a long time. Each working fluid will have its corresponding compatible materials, which are put together to form a compatibility list. The working medium of the aerospace liquid cooling system generally uses ethylene glycol aqueous solution, and a suitable material can be selected from the ethylene glycol aqueous solution corresponding to the ethylene glycol aqueous solution compatibility catalogue, wherein the material outside the catalogue is not allowed to be used. Working medium circulates in the whole liquid cooling system, if the material used at a certain position cannot be compatible with the glycol aqueous solution, local corrosion is generated, and finally corrosion perforation is possibly caused, and the glycol aqueous solution is sprayed out in a large amount to damage the whole electric appliance system.

The ground liquid cooling plate generally adopts 6-series aluminum alloy radiating fins 21, which cannot be used because the material is not in the aerospace compatibility catalogue, and meanwhile, the ground liquid cooling plate has the problems of weak structural strength and redundancy, so the ground liquid cooling plate is not suitable for being used in the liquid cooling structure of the present disclosure.

The aluminum alloy grade adopted in the prior art is 3A21, the yield strength is 50Mpa, the aluminum alloy grade adopted in the method is 7A04, and the yield strength is 480Mpa, which is more than 9 times of the yield strength of 3A 21. The densities of the two aluminum alloys are basically the same and are 2700kg/m³However, the top plate and the shell are made into an integral structure, compared with a split structure, the thickness of the top plate and the shell can be partially reduced, and the weight of the whole structure is reduced to 1 part from 2 parts.

In some embodiments, a plurality of weight-reducing grooves 111 are provided in each rib 11 for reducing the weight of the rib 11, and the rib 11 has a certain strength because the weight-reducing grooves 111 have a groove-like structure and not a hole-like structure.

In some embodiments, the plate body 1 is drilled with a drill to form the hole 14, and the opening of the hole 14 is sealed to form the flow channel 13. During processing, firstly, a drill is used for drilling holes on the plate body 1 to form blind holes, then residues in the holes 14 are cleaned, and the holes 14 are sealed after the residues are cleaned to form a flow channel 13 for cooling material to flow.

The opening part of the hole 14 is welded and blocked by argon arc welding, so that residues are not left in the hole 14, and the mechanical property and the pressure resistance of the plate body are enhanced.

In some embodiments, the flow channel 13 includes a first flow channel 131, a second flow channel 132 and a plurality of third flow channels 133, the cooling material enters the first flow channel 131, flows into the third flow channel 133 through the first flow channel 131, then flows to the second flow channel 132 through the third flow channel 133, and finally is discharged through the second flow channel 132, so that the heat of the plate body 1 can be taken away.

The first flow channel 131 and the second flow channel 132 are both perpendicular to the third flow channel 133.

In addition, the plate body 1 has an inlet 15 for inflow of the cooling substance and an outlet 16 for outflow of the cooling substance, the inlet 15 communicating with the first flow passage 131, and the outlet 16 communicating with the second flow passage 132. The cooling material flows from the inlet 15 into the first flow channel 131, then into the third flow channel 133, then into the second flow channel 132, and finally out through the outlet 16, thereby taking away the heat of the plate body 1.

The first channel 18 is opened at the inlet 15 of the plate body 1, and the inlet 15 is communicated with the first flow channel 131 through the first channel 18. The second channel 19 is opened at the outlet 16 of the plate body 1, and the outlet 16 is communicated with the second flow channel 132 through the second channel 19.

A plurality of sets of the third flow channels 133 are provided, and the reinforcing ribs 17 are provided between two adjacent sets of the third flow channels 133, and the reinforcing ribs 17 are used for improving the strength of the plate body 1.

The reinforcing ribs 17 are actually formed on the plate body 1, so that a part of the plate body 1 is left without holes, and the strength of the part is the highest, thereby improving the strength of the plate body 1.

The embodiment of the present disclosure also provides a chassis housing, including: two liang of roof, bottom plate and two curb plates that link to each other, at least one in roof and the bottom plate is foretell liquid cooling structure. During the use, the top plate or the bottom plate can be replaced by the liquid cooling structure, and the top plate and the bottom plate can be replaced by the liquid cooling structure to improve the heat dissipation effect.

Because the box casing installation is accomplished the back and is put into the box with the template, but the template can produce the heat when moving, and the heat can be discharged through the liquid cooling structure, because liquid cooling structure and case casing integrated into one piece, consequently need not additionally set up the liquid cooling board on the case casing, consequently simplified the structure of case casing, still reduced the weight of case casing simultaneously. Meanwhile, through the arrangement of the plate body 1, heat of the liquid cooling structure can be rapidly dissipated, so that the heat dissipation effect is improved, and the thermal resistance is reduced.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a liquid cooling structure, its characterized in that, liquid cooling structure can with quick-witted case casing integrated into one piece, liquid cooling structure includes: a plate body (1);

a plurality of convex strips (11) are arranged on the surface of the plate body (1), and any two adjacent convex strips (11) form a guide groove (12) for guiding and installing a template in the case shell;

a plurality of flow passages (13) are formed in the plate body (1), the flow passages (13) are used for flowing of cooling substances, and heat of the plate body (1) is dissipated through the flowing of the cooling substances.

2. The liquid cooling structure of claim 1, wherein each of the ribs (11) is provided therein with a plurality of weight-reducing grooves (111) for reducing the weight of the rib (11).

3. The liquid-cooled structure of claim 1, wherein the plate (1) is drilled with a drill to form a hole (14), and the opening of the hole (14) is blocked to form the flow channel (13).

4. The liquid-cooled structure of claim 3, characterized in that the opening of the hole (14) is welded and sealed by argon arc welding.

5. The liquid cooling structure of claim 1, wherein the flow passage (13) comprises a first flow passage (131), a second flow passage (132), and a plurality of third flow passages (133), the cooling substance flowing through the first flow passage (131) into the third flow passage (133) and through the third flow passage (133) to the second flow passage (132), the cooling substance being discharged through the second flow passage (132).

6. The liquid cooling structure of claim 5, wherein the first flow channel (131) and the second flow channel (132) are both disposed perpendicular to the third flow channel (133).

7. The liquid-cooled structure according to claim 5, characterized in that the plate body (1) has an inlet (15) for inflow of the cooling substance and an outlet (16) for outflow of the cooling substance, the inlet (15) communicating with the first flow channel (131) and the outlet (16) communicating with the second flow channel (132).

8. The liquid cooling structure of claim 9, wherein a plurality of sets of the third flow passages (133) are provided, and a rib (17) is provided between two adjacent sets of the third flow passages (133).

9. The liquid-cooled structure of claim 1, wherein the plate (1) is made of aluminum alloy 7a 04.

10. A cabinet housing, comprising: a top plate, a bottom plate and two side plates connected in pairs, at least one of the top plate and the bottom plate being a liquid cooled structure according to any one of claims 1 to 9.