WO2019037328A1

WO2019037328A1 - Heat dissipation device employing circulating cooling liquid, heat dissipation system employing circulating cooling liquid, and optical projection system

Info

Publication number: WO2019037328A1
Application number: PCT/CN2017/114734
Authority: WO
Inventors: 唐朝晖; 李屹
Original assignee: 深圳光峰科技股份有限公司
Priority date: 2017-08-21
Filing date: 2017-12-06
Publication date: 2019-02-28
Also published as: CN109426049B; CN109426049A

Abstract

A heat dissipation device (10) employing a circulating cooling liquid comprises: a container (1) having an accommodation space (11); a cooling-liquid circulation tube (20) in communication with the container (1), a liquid discharged from the cooling-liquid circulation tube (20) being received in the accommodation space; an input opening arranged at an outer wall of the container (1) to input the liquid discharged from the cooling-liquid circulation tube (20) to the accommodation space (11); an output opening (3) arranged at the outer wall of the container (1) to output the liquid to the cooling-liquid circulation tube (20); and an output duct (4) having a liquid inlet (41) positioned always under the liquid level, the output duct (4) being connected to the output opening (3), and the liquid entering the output duct (4) from the liquid inlet (41) and being outputted to the cooling-liquid circulation tube (20). Also provided are a heat dissipation system (100) employing a circulating cooling liquid and an optical projection system. Compared with the prior art, the heat dissipation device (10) employing a circulating cooling liquid, the heat dissipation system (100) employing a circulating cooling liquid, and the optical projection system have favorable performance and high reliability and stability.

Description

Liquid cooling circulation heat sink, liquid cooling cycle heat dissipation system and optical projection system

[0001] The present invention belongs to the technical field of heat dissipation, and particularly relates to a liquid cooling cycle heat dissipating device, a liquid cooling cycle heat dissipating system, and an optical projection system.

Background technique

[0002] With the development of society, more and more electronic devices have entered people's lives and become an indispensable part. The operation of electronic devices generates a large amount of heat, and the generated heat will cause the said Electronic equipment is unstable, so it is especially important to use heat sinks in electronic equipment.

[0003] The heat dissipating device used in the related art electronic device is mostly a liquid cooling circulating heat dissipating device, and the heat dissipation effect is achieved by taking heat away from the water circulation. The liquid cooling circulation heat dissipating device comprises a container having a receiving space therein, an input port and an output port, and a gas pressure cap, the input port and the gas pressure cap are located at the top of the container, and the output port is located at the bottom of the container. This structure ensures that the liquid enters the lower portion of the accommodating space, and the gas automatically rises to the upper portion of the accommodating space. Relieving pressure from the pressure cap at the top of the container when the pressure is too high

[0004] However, the liquid-cooling circulation heat dissipating device of the related art needs to vertically place the container, and the device using the liquid-cooling circulation heat-dissipating device, such as an optical projection system, needs to ensure the placement of the optical projection system. The orientation of the containers is uniform, so the use of cockroaches is severely limited and cannot be used for products where the placement and orientation are uncertain.

[0005] Therefore, it is necessary to provide a new liquid cooling cycle heat sink and an optical projection system to solve the above problems.

Problem solution

Technical solution

[0006] In view of the above deficiencies of the prior art, the present invention provides a liquid cooling cycle heat dissipating device, a liquid cooling cycle heat dissipating system, and an optical projection system with high reliability and stability. .

[0007] The present invention provides a liquid cooling cycle heat sink comprising:

a container and a liquid-cooled circulation pipe communicating with the container, the container having a receiving space for a shelter The liquid discharged from the liquid cold circulation pipe;

[0009] an input port, disposed on the outer wall of the container, for inputting the liquid discharged from the liquid-cooled circulation pipe into the accommodating space;

[0010] an outlet port disposed on an outer wall of the container for outputting the liquid to the liquid cooling circulation pipe

; as well as

[0011] an output conduit including a liquid inlet, the liquid inlet is always below a liquid level of the liquid, the output conduit is connected to the outlet, and the liquid enters the output through the liquid inlet The conduit is output to the liquid cooling circulation conduit.

[0012] Preferably, the liquid cooling cycle heat dissipation device further includes:

[0013] a buoy, a hose and a decompression device, wherein the buoy is received in the accommodating space and floats on a liquid surface of the liquid, the hose is received in the accommodating space, and the buoy is connected And the decompression device, the decompression device is disposed on an outer wall of the container, and gas in the container is discharged through the decompression device via the buoy and the hose.

[0014] Preferably, the buoy includes a main body portion, the main body portion floats on the liquid surface, and the main body portion is disposed at a position away from the liquid surface, and the gas is discharged from the cornice.

[0015] Preferably, the mouth is disposed directly above the liquid surface of the main body portion.

[0016] Preferably, the buoy further includes a cover, the cover is mounted on the main body portion, and the gas enters the cornice through a joint of the main body portion and the cover.

[0017] Preferably, the size of the bottom surface of the cover is larger than the size of the main body portion, and the cover completely covers the mouth of the main body portion in a liquid-tight manner.

[0018] Preferably, the pressure reducing device is a pressure relief valve, and a gas pressure in the receiving space is higher than a threshold value of the pressure reducing device, and the pressure reducing device automatically faces the receiving space. The gas is released from pressure.

[0019] Preferably, the liquid cooling circulation device further includes an input conduit, the input conduit is connected to the input port, a connection between the input conduit and the input port, and the output conduit and the output port The connections are made by connecting the sealing ring or by dispensing.

[0020] The present invention also provides a liquid cooling cycle heat dissipation system and an optical projection system, including the above liquid cooling cycle heat dissipation device provided by the present invention.

Advantageous effects of the invention Beneficial effect

[0021] Compared with the prior art, in the liquid-cooling circulation heat dissipating device and the optical projection system of the present invention, the output conduit is inserted into the output port, and the liquid inlet is located in the receiving space of the container. It is always below the liquid level of the liquid, so that the container is placed obliquely anyway, the outlet conduit is always below the liquid level, and the placement of the liquid cooling circulation heat sink is not limited by position and angle. The purpose is to apply a wide range of applications; and the pressure relief of the liquid and gas in the container is stabilized by setting the buoy and the pressure reducing device, and the liquid cooling circulation heat dissipating device is applied to the In an optical projection system or the like, the optical projection system is highly reliable and stable in performance. Brief description of the drawing

DRAWINGS

[0022] The present invention will be described in detail below with reference to the accompanying drawings. The above and other aspects of the present invention will become more apparent from the detailed description of the appended claims. In the figure:

1 is a structural block diagram of a liquid cooling circulation heat dissipation system of the present invention;

2 is a schematic structural view of a liquid cooling circulation heat dissipating device of the present invention;

3 is a schematic view showing another structure of a liquid cooling circulation heat dissipating device of the present invention.

Embodiments of the invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The specific embodiments and examples described herein are specific embodiments of the present invention, and are intended to be illustrative of the embodiments of the present invention. Limitations of the scope of the invention. In addition to the implementations described herein, those skilled in the art will be able to devise other obvious technical solutions based on what is disclosed in the claims and the description of the present application. These technical solutions include any obvious use of the embodiments described herein. The alternative and modified technical solutions are all within the scope of the present invention.

Referring to FIG. 1, the present invention provides a liquid cooling circulation heat dissipation system 100, including a liquid cooling circulation heat dissipating device 10 and a liquid cooling circulation pipe 20, wherein the liquid cooling circulation heat dissipating device 10 includes a container 1, the liquid The cold circulation duct 20 is in communication with the container 1 to circulate heat through an internal device (such as an optical projection system) through the liquid in the container 1, and the liquid-cooled circulation duct 20 is disposed through at least one heat source of the external device. [0029] Referring to FIG. 2-3, the liquid-cooling circulation heat sink 10 further includes an input port 2, an output port 3, an output conduit 4, a buoy 5, a pressure reducing device 6, a hose 7, and an input conduit 8.

[0030] In the present embodiment, the liquid-cooled circulation duct 20 communicates with the container 1 through the input duct 8 and the output duct 4 to realize the liquid-cooled circulation duct 20 and the container 1 Liquid heat exchange to complete heat dissipation.

[0031] The container 1 has a receiving space 11 for accommodating the circulating heat-dissipating liquid discharged from the liquid-cooling circulation heat dissipation system 100, and the liquid is used for circulating heat exchange. Specifically, the liquid may be a water and/or a cooling liquid having a better endothermic effect. The container 1 may be made of metal or other material having better thermal conductivity. The outer side of the container 1 may be provided with heat dissipating fins or other heat absorbing means to suck away the heat of the liquid contained in the container 1 to maintain the heat. The liquid in the vessel 1 is at a lower temperature to facilitate the heat dissipation of the heat source.

[0032] In the present embodiment, the container 1 has a spherical shape or a pie shape. Of course, the shape is not limited to this.

[0033] Specifically, the input port 2 and the output port 3 are both disposed on the outer wall of the container 1, wherein the input port 2 is used to input the heat exchange temperature of the liquid cooling circulation pipe 20 The higher liquid is input into the accommodating space 11 of the container 1, and the output port 3 is for outputting the liquid having a lower temperature in the container 1 to the liquid-cooling circulation pipe 20 for heat exchange to take away The amount of heat emitted by the external device during operation.

[0034] In the present embodiment, the input port 2 and the output port 3 are disposed at approximately 90 degrees. In other embodiments, the input port 2 and the output port 3 can be disposed at any position of the container 1.

[0035] The output duct 4 is inserted into the output port 3 for outputting the liquid in the container 1 to the liquid-cooling circulation duct 20. Specifically, the output duct 4 is extended from the outside of the container 1 through the output port 3 toward the inner space of the container 1.

[0036] The output duct 4 further includes a liquid inlet 41 and a liquid outlet 42 which are disposed opposite each other. The liquid inlet 41 is disposed inside the container 1 for guiding the liquid in the container 1; the liquid outlet 42 is disposed outside the container 1 for the liquid cooling circulation pipe 20 Connected to drain the liquid in the vessel 1 to the liquid-cooled circulation conduit 20.

[0037] In the present embodiment, the liquid inlet 41 is always located below the liquid level of the liquid in the container 1 to ensure that the liquid in the container 1 can pass regardless of the angle at which the container 1 is placed. The liquid inlet port 4 1 is led to the liquid cooling circulation pipe 20. [0038] Specifically, a sealing rubber ring is disposed at a joint of the output conduit 4 and the output port 3 or is connected by dispensing to prevent liquid from overflowing from the connection of the output port 3 and the output conduit 4. .

[0039] The buoy 5 is received in the accommodating space 11 and floats on the liquid, and is used for monitoring the degree of pressure of the gas in the container 1 and exporting a part of the gas after the gas pressure is large. The pressure inside the container 1 is alleviated. Specifically, when the external device equipped with the liquid-cooling circulation heat dissipation system 100 has a higher working power, the generated heat is also increased accordingly, and the liquid-cooling circulation heat dissipation system 100 absorbs a large amount of heat, and flows into the container 1 . The temperature of the liquid is higher, so that the temperature of the gas in the container 1 is also increased, and the pressure is increased, and the gas can be led out through the buoy 5 to prevent the gas pressure from being too large to affect the entire liquid cooling circulation heat dissipation system 100. Liquid exchange.

[0040] The buoy 5 includes a main body portion 51, and a position of the main body portion 51 away from the liquid surface is provided with a mouth 511, the main body portion 51 always floating on the liquid surface and the mouth 511 is always Located above the surface of the liquid to ensure that gas in the receiving space 11 can be discharged through the mouth 511 of the buoy 5.

[0041] The position of the mouth 511 is not limited, as long as it is located above the surface of the liquid. In the present embodiment, specifically, the mouth 511 is provided on the body portion 51 with respect to the liquid surface. Directly above.

More preferably, the buoy 5 further includes a cover 52 disposed above the main body portion 51 and completely covering the mouth 511 in a liquid-tight manner. Specifically, the cover 52 enables the gas in the container 1 to enter the mouth 511 and prevent the liquid from entering the mouth 511, thereby improving the reliability of the float 5. In this embodiment, preferably, the surface 52 of the cover 52 is an umbrella structure or a curved surface structure, so that liquid flows to the buoy 5吋, and can be diverted from the surface of the cover 52 to the In the container 1, it is avoided to flow into the interior of the buoy 5. Further, the size of the bottom surface of the cover 52 is larger than the size of the main body portion 51, so that the cover 51 is mounted on the main body portion 51, and can completely cover the mouth of the main body portion 51. 511, avoiding liquid entering the inside of the buoy 5, and excess gas in the container 1 can enter the interior of the buoy 5 via the cover 51 and the body portion 51 and enter through the hose 7 The pressure reducing device 6.

[0043] The pressure reducing device 6 is fixedly disposed on the outer wall of the container 1 for releasing the gas in the receiving space 11.

[0044] In the present embodiment, the pressure reducing device 6 is a pressure relief valve.

[0045] The hose 7 is received in the receiving space 11 and has one end running through the buoy 5 and the mouth 511 The other end is connected to the decompression device 6 to cooperate with the buoy 5 to conduct the gas in the container 1 to the decompression device 6 for pressure relief. In the present embodiment, the connection between the hose 7 and the buoy 5 and the decompression device 6 is connected by providing a sealing ring or dispensing to prevent liquid from entering the buoy 5 and the hose 7, affecting The airtightness of the buoy 5.

[0046] When the gas pressure in the accommodating space 11 is higher than the igniting threshold 所述 of the decompression device 6, the decompression device 6 automatically depressurizes the gas in the accommodating space 11. The automatic pressure relief function is realized to ensure that the air pressure in the accommodating space 11 does not affect the input and output of the liquid due to excessively high.

[0047] Specifically, in the embodiment, when the gas pressure in the accommodating space 11 is too high, the air pressure causes the buoy 5 to be pressurized, and the gas is transported to the stomata 511 through the buoy 5 of the buoy 5 Referring to the hose 7, to the pressure reducing device 6, when the gas pressure is greater than the threshold value of the pressure reducing device, the gas enters the buoy 5 and is discharged via the pressure reducing device 6.

[0048] Of course, the liquid cooling circulation heat dissipation system 100 may further be provided with the input conduit 8, the input conduit 8 being inserted into the input port 2 to connect the liquid cooling circulation pipe 20, thereby the liquid The liquid in the cold circulation duct 20 is introduced into the vessel 1. Specifically, a sealing apron is provided at the junction of the input conduit 8 and the input port 2 or by dispensing to prevent liquid from overflowing from the connection of the output port 3 and the output conduit 4.

[0049] The above configuration is such that the liquid-cooling circulation heat dissipation system 100 or the container 1 is disposed at any angle, and the liquid inlet 41 of the output conduit 4 is always below the liquid level of the liquid, the liquid Outside the cold cycle system 100, a pump valve device may be provided to extract the liquid in the container 1 and enter the liquid-cooled circulation pipe 20 for heat-dissipation. Moreover, the buoy 5 is always floating on the liquid level, so that the container 1 can be placed only through the output conduit 4, regardless of the angle at which it is processed, input by the input port 2 , high reliability.

[0050] It can be understood that, in an embodiment, an alarm device (not shown) may be disposed in the container 1 , and the warning device is configured to detect whether the liquid inlet 41 of the output conduit 4 is located in the liquid Below the surface and remind the user if they need to add the liquid. For example, the warning device may be disposed on the inner wall of the container 1 at a position flush with the liquid inlet 41, and when the liquid level falls below the warning device, a prompt message is sent to remind the user that the user needs to add The liquid detecting device may be disposed at the liquid inlet port 41 for detecting whether the liquid inlet 41 has liquid introduction, and when the liquid inlet 41 has no liquid introduction or When the introduction of liquid is less, you can issue a reminder that you need to add the liquid. Of course, the warning device may have other setting manners or be disposed at other positions, and only need to be able to detect whether the liquid inlet can normally introduce liquid.

The present invention also provides an optical projection system (not shown) including the above-described liquid-cooled circulation heat dissipation system 100 provided by the present invention. When the liquid cooling circulation heat dissipation system 100 is applied to the optical projection system, the angle of the container 1 can be arbitrarily set so that the optical projection system is mounted without being limited by angle and position.

For example, it can be mounted, tilted, flipped, etc., which are all feasible, limited in size, and wide in scope.

[0052] Of course, the liquid-cooled circulation heat dissipation system 100 can also be applied to other mechanical devices, which is also feasible, and the principle is the same.

[0053] Compared with the prior art, in the liquid-cooling circulation heat dissipating device and the optical projection system of the present invention, the output conduit is inserted into the output port, and the liquid inlet is located in the receiving space of the container. It is always below the liquid level of the liquid, so that the container is placed obliquely anyway, the output conduit is always below the liquid level, and the placement of the liquid cooling circulation heat sink is not restricted by position and angle. Widely applicable; the same is used to depressurize the inside of the container by setting the buoy and the decompression device, so that the pressure of the liquid and gas in the container is stabilized, when the liquid cooling circulation heat sink is applied to the optical In a device such as a projection system, the optical projection system is highly reliable and stable in performance.

[0054] It should be noted that the various embodiments described above with reference to the accompanying drawings are only used to illustrate the invention and not to limit the scope of the invention, and those skilled in the art should understand without departing from the spirit and scope of the invention. Modifications or equivalent substitutions of the invention are intended to be included within the scope of the invention. In addition, unless the context indicates otherwise, words in the singular include plural and vice versa. In addition, all or a portion of any embodiment may be utilized in combination with all or a portion of any other embodiment, unless otherwise stated.

[0055]

Claims

Claim

[Claim 1] 1. A container having a receiving space for containing a liquid;

An input port disposed on an outer wall of the container for inputting the liquid into the receiving space;

An output port disposed on an outer wall of the container for outputting the liquid;

And an output conduit including a liquid inlet, the liquid inlet being disposed inside the container and always below a liquid level of the liquid, the output conduit being connected to the outlet, the liquid passing through the liquid The port enters the output conduit and is output through the output port.

[Claim 2] 2. The liquid-cooling circulation heat dissipation device according to claim 1, wherein the liquid-cooling circulation heat dissipation device further comprises:

a buoy, a hose and a pressure reducing device, the buoy being received in the receiving space and floating on a liquid surface of the liquid, the hose being received in the receiving space, and the buoy and the a pressure reducing device that is disposed on an outer wall of the container, and the gas in the container is discharged through the decompression device via the buoy and the hose.

[Claim 3] The liquid-cooling circulation heat dissipating device according to claim 2, wherein: the buoy includes a main body portion, the main body portion floats on the liquid surface, and the main body portion is away from the The position of the liquid surface is set to the mouth, and the gas is discharged from the mouth.

[Claim 4] The liquid-cooling circulation heat sink according to claim 3, wherein the mouthpiece is provided directly above the liquid surface of the main body portion.

[Claim 5] The liquid-cooling circulation heat dissipating device according to claim 3, wherein: the buoy further includes a cover, the cover is mounted on the main body portion, and the gas passes through the The body portion and the cover joint enter the mouth.

[Claim 6] The liquid-cooling circulation heat dissipating device according to claim 5, wherein: a size of a bottom surface of the cover is larger than a size of the main body portion, and the cover is completely liquid-tightly covered. The mouth of the main body is housed.

[Claim 7] The liquid-cooling circulation heat sink according to claim 2, wherein the pressure reducing device is a pressure relief valve, and a gas pressure in the receiving space is higher than that of the pressure reducing device The threshold value 吋, the pressure reducing device automatically releases the gas in the accommodating space.

[Claim 8] The liquid-cooling circulation heat dissipating device according to claim 1, wherein: the liquid-cooling circulation device further comprises an input conduit, the input conduit is connected to the input port, the input conduit The connection with the input port and the connection of the output conduit and the output port are both connected by a sealing rubber ring or by a dispensing method.

[Claim 9] A liquid-cooling circulation heat dissipation system, comprising: a liquid-cooled circulation pipe; and the liquid-cooling circulation heat-dissipating device according to any one of claims 1-8, wherein the liquid-cooled circulation pipe Connected to the input port and the output port respectively, the liquid contained in the container is output to the liquid cooling circulation pipe through the output port, and the liquid outputted to the liquid cooling circulation pipe is input through the input port To the accommodating space.

[Claim 10] _10. An optical projection system, wherein liquid cooling circulation cooling system comprising according to claim 9, wherein the liquid cooling circulation duct through the projection optical system is at least one heat source.