CN209215849U - Liquid cooling type radiator - Google Patents

Abstract

The utility model provides a liquid cooling formula radiator, include: the shell is provided with a top plate, a bottom plate, a front plate, a rear plate and two opposite side plates and forms an accommodating space. The at least one water inlet pipe and the at least one water outlet pipe are respectively arranged outside the top plate of the shell and communicated with the accommodating space. Multiple groups of radiating fins which are arranged in the accommodating space and are mutually spaced; and the partition board is arranged in the accommodating space and is positioned among the plurality of groups of radiating fins to form at least two flow channels. The axial direction of the at least one water outlet pipe and the axial direction of the at least one water inlet pipe form an included angle of 70-110 degrees, the partition plate is staggered with the at least one water inlet pipe, when cooling liquid enters the shell from the at least one water inlet pipe, the cooling liquid respectively flows into the at least two flow channels and passes through the corresponding heat dissipation fins, and the cooling liquid leaves the shell through the at least one water outlet pipe. The utility model discloses a liquid cooling formula radiator can promote the heat transfer performance between coolant liquid and the heat radiation fins.

Description

Liquid Cooled Radiator

This application is a divisional application of a utility model application with the application number 201820778825.X, the application date is May 24, 2018, and the invention name is "liquid-cooled radiator".

technical field

The utility model relates to a radiator, in particular to a liquid-cooled radiator applied to a solid-state light source projector.

Background technique

Traditional projectors mostly use high-pressure mercury lamps as light sources for projection. Recently, with the progress of semiconductor manufacturing, light sources made of semiconductor components such as light-emitting diodes or lasers have been developed. Because the light source made of semiconductor components has the advantages of small size and high brightness of the light source. However, the small size has the disadvantage of high heat generation density of the semiconductor components, so the semiconductor components have higher requirements for heat dissipation.

Nowadays, a water-cooled heat dissipation module is attached to a heat source to dissipate heat, so that cooling water flows into the heat dissipation module to absorb waste heat, and dissipate the waste heat to the outside air through conduction and convection. However, most of the existing water-cooled heat dissipation modules use heat dissipation fins stamped and formed from metal sheets. The cooling water enters the heat dissipation module to contact the heat dissipation fins, and the temperature of the cooling water will increase with the increase of the flow distance. Due to the heat conduction of the metal sheet The effect is not good. When the cooling water flows to the rear end of the fins, the temperature of the cooling water has risen and the heat transfer performance of the cooling fins has been greatly reduced. This will cause some areas of the heat source to be unable to dissipate heat effectively, thereby affecting the operation of the semiconductor light source.

The paragraph "Background Technology" is only used to help understand the content of the present invention, so the content disclosed in the paragraph "Background Technology" may contain some known technologies that do not constitute the knowledge of those skilled in the art. The content disclosed in the "Background Technology" paragraph does not mean that the content or the problems to be solved by one or more embodiments of the present utility model have been known or recognized by those skilled in the art before the application of the utility model.

Utility model content

The utility model provides a liquid-cooled radiator, which can improve the heat transfer performance between the cooling liquid and the cooling fins.

A liquid-cooled radiator of the present utility model comprises: a housing with a top plate, a bottom plate, a front plate, a rear plate and two opposite side plates, and the top plate, the bottom plate, the front plate, the rear plate and two side plates form a housing setting space. At least one water inlet pipe is arranged outside the top plate of the casing and communicates with the accommodating space. At least one water outlet pipe is arranged outside the front panel of the housing and communicates with the accommodating space. Multiple sets of cooling fins are arranged in the accommodating space and spaced apart from each other. The baffle is arranged in the accommodation space, and the baffle is located between multiple groups of cooling fins to form at least two flow passages in the accommodating space. Wherein, the axial direction of the at least one water outlet pipe and the axial direction of the at least one water inlet pipe have an included angle between 70 degrees and 110 degrees, and the partition is staggered at the at least one water inlet pipe.

A liquid-cooled radiator of the present utility model comprises: a housing with a top plate, a bottom plate, a front plate, a rear plate and two opposite side plates, and the top plate, the bottom plate, the front plate, the rear plate and two side plates form a housing setting space. At least one water inlet pipe is arranged outside the top plate of the casing and communicates with the accommodating space. The two outlet pipes are arranged outside the front panel of the casing and communicate with the accommodating space. Multiple sets of cooling fins are arranged in the accommodating space and spaced apart from each other. Wherein, at least two flow channels are formed in the accommodating space, and the at least two flow channels respectively correspond to two water outlet pipes, and the axial direction of the two water outlet pipes and the axial direction of at least one water inlet pipe have an included angle between 70° and 110°.

Based on the above, in the liquid-cooled radiator of the present invention, the axial direction of at least one water outlet pipe and the axial direction of at least one water inlet pipe have an included angle between 70 degrees and 110 degrees. When the water pipe enters the casing, it can produce an impact cooling effect on a part of the bottom plate of the casing, so as to improve the heat dissipation effect. In addition, through the configuration of at least two flow channels, the cooling liquid can obtain better flow distribution, so that the cooling liquid can quickly pass through each set of cooling fins and take away waste heat at the same time. The heat transfer performance of the liquid-cooled radiator is improved by leaving the housing.

Description of drawings

FIG. 1A is a schematic diagram of the appearance of a liquid-cooled radiator according to an embodiment of the present invention;

FIG. 1B is a schematic perspective view of the liquid-cooled radiator shown in FIG. 1A;

FIG. 1C is a perspective schematic view of the A-A section of the liquid-cooled radiator of FIG. 1A;

FIG. 1D is a three-dimensional schematic diagram of the B-B section of the liquid-cooled radiator of FIG. 1A;

FIG. 1E is a schematic side plan view of the liquid-cooled radiator shown in FIG. 1D;

2A is a schematic plan view of a liquid-cooled radiator according to another embodiment of the present invention; FIG. 2B is a schematic plan view of a liquid-cooled radiator according to another embodiment of the present invention.

Explanation of reference signs

100, 100A, 100B: liquid-cooled radiator;

110, 110a, 110b: housing

111, 111a, 111b: top plate

112, 112a, 112b: bottom plate

113, 113a, 113b: front plate

114, 114a, 114b: rear plate

115: side panel

120, 120A, 120B: water inlet pipe

130, 130A, 130B: outlet pipe

140, 140A, 140B: cooling fins

150, 150A: clapboard

151A: end

160, 160A, 160B: guide fins

170, 170A, 170B: auxiliary fins

200: heat source

AS: Accommodating space

A1, A2: Axial

LD: Length direction

H1, H2: vertical height

AN: included angle

PA: flow channel

Detailed ways

The aforementioned and other technical contents, features and functions of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only directions referring to the attached drawings. Therefore, the directional terms used are used to illustrate but not to limit the present invention.

FIG. 1A is a schematic diagram of the appearance of a liquid-cooled radiator according to an embodiment of the present invention. FIG. 1B is a schematic perspective view of the liquid-cooled radiator shown in FIG. 1A . FIG. 1C is a schematic perspective view of the A-A section of the liquid-cooled heat sink of FIG. 1A . FIG. 1D is a schematic perspective view of the cross section B-B of the liquid-cooled radiator of FIG. 1A . FIG. 1E is a schematic side plan view of the liquid-cooled radiator shown in FIG. 1D .

Referring to FIG. 1A , the liquid-cooled heat sink 100 of the present embodiment is suitable to be disposed on the heat source 200 to dissipate heat from the heat source 200 and prevent the temperature of the heat source 200 from being too high. Wherein the heat source 200 is, for example, a light source of a projector (such as a light source made of semiconductor components such as light-emitting diodes or lasers), a light valve, a central processing unit (CPU) of a computer, a graphics processing unit (GPU) or other devices that generate high heat. electronic components. The liquid-cooled radiator 100 contacts the surface of the heat source 200 and absorbs the waste heat generated by the heat source 200 through heat conduction. When the heat source 200 is in operation, it can achieve a cooling effect and prevent the heat source 200 from being too high to affect its operation.

Please refer to FIG. 1A to FIG. 1C , the liquid-cooled radiator 100 of this embodiment includes a housing 110 , at least one water inlet pipe 120 , at least one water outlet pipe 130 , multiple sets of cooling fins 140 and partitions 150 .

The casing 110 has a top plate 111 , a bottom plate 112 , a front plate 113 , a rear plate 114 and two opposite side plates 115 , and the top plate 111 , the bottom plate 112 , the front plate 113 , the rear plate 114 and the two side plates 115 form an accommodating space AS. Wherein, the outer surface of the bottom plate 112 is suitable for contacting the heat source 200 .

In this embodiment, the number of at least one water inlet pipe 120 is, for example, one. The water inlet pipe 120 is disposed outside the top plate 111 of the casing 110 and communicates with the accommodating space AS. In addition, the axial direction A1 of the water inlet pipe 120 is, for example, perpendicular to the bottom plate 112 of the casing 110 and the heat source 200 , and the coolant 300 is adapted to flow from the water inlet pipe 120 into the accommodating space AS of the casing 110 along the axial direction A1 . In addition, the water inlet pipe 120 is, for example, located on a side of the top board 111 close to the rear board 114 . In addition, in other embodiments, there may be multiple water inlet pipes, depending on the specifications or requirements of the liquid-cooled radiator.

The number of at least one water outlet pipe 130 is, for example, one. The water outlet pipe 130 is arranged outside the front plate 113 of the casing 110 and communicates with the accommodating space AS, and the axial direction A2 of the water outlet pipe 130 is parallel to the bottom plate 112 of the casing 110, that is, the outlet There is a distance between the bottom of the water pipe 130 and the bottom plate 112 of the casing 110 . In addition, the water outlet pipe 130 is, for example, located at the center of the front plate 113, and the axial direction A2 of the water outlet pipe 130 intersects the axial direction A1 of the water inlet pipe 120, and the cooling liquid 300 is adapted to flow out of the casing from the water outlet pipe 130 along the axial direction A2. 110. In detail, the axial direction A2 of the water outlet pipe 130 and the axial direction A1 of the water inlet pipe 120 have an included angle AN between 70 degrees and 110 degrees, which means that the axial direction A1 of the water inlet pipe 120 points to the bottom plate 112 of the casing 110 .

Multiple groups of cooling fins 140 (two groups in this embodiment) are disposed in the accommodating space AS and spaced apart from each other. Each group of heat dissipation fins 140 is connected between the top plate 111 and the bottom plate 112 of the housing 110 , that is, two ends of the heat dissipation fins 140 respectively abut against the top plate 111 and the bottom plate 112 . Furthermore, the two sets of heat dissipation fins 140 are located on both sides of the water inlet pipe 120, so that each set of heat dissipation fins 140 and the water inlet pipe 120 are separated from each other, and when the coolant 300 flows in from the water inlet pipe 120, it can avoid directly touching the heat dissipation fins The inflow pressure of the coolant 300 is too high due to the sheet 140 . Since the water inlet pipe 120 is facing downward to the bottom plate 112 of the housing 110 , after the coolant 300 passes through the water inlet pipe 120 , it will enter the accommodating space AS and directly touch the bottom plate 112 , thereby producing an impact cooling effect. In addition, in this embodiment, each group of heat dissipation fins 140 includes plate fins, columnar fins or fins of other shapes.

In other embodiments, each group of heat dissipation fins is, for example, a multi-layer structure, that is, each group of heat dissipation fins is not integrally formed, but is composed of a plurality of independent heat dissipation units stacked on each other.

The partition plate 150 is disposed in the accommodating space AS and is located between multiple groups of cooling fins. In detail, the partition 150 passes through the two sets of cooling fins 140, and the length direction LD of the partition 150 is parallel to the front panel 113 and the rear panel 114 of the casing 110, wherein the partition 150 is opposite to the front panel 113 and the rear panel 113. The distances between the plates 114 are the same, and form a two-flow channel PA presenting a U-shaped loop in the accommodating space AS. The length direction LD of the partition 150 is also perpendicular to the axial directions A2 and A1 of the water outlet pipe 130 and the water inlet pipe 120 , so that the two flow passages PA are symmetrical and have the same flow rate of the coolant 300 . In addition, the separator 150 is misplaced at the water inlet pipe 120. When the coolant 300 enters the housing 110 from the water inlet pipe 120 along the axial direction A1, the coolant 300 first touches the bottom plate 112, and then is blocked by the rear plate 114 and the separator 150. The cooling liquid 300 flows along the two-flow channels PA of the U-shaped loop and passes through the corresponding cooling fins 140 , thereby achieving the effect of flow distribution. Finally, the cooling liquid 300 flows between the front plate 113 and the partition plate 150 , and leaves the casing 110 through the outlet pipe 130 along the axial direction A2 , completing a flow cycle of the cooling liquid 300 .

Referring to FIG. 1C to FIG. 1E , the liquid-cooled heat sink 100 includes a plurality of guide fins 160 and at least one auxiliary fin 170 . A plurality of guide fins 160 are disposed between the partition plate 150 and the rear panel 114 of the casing 110 . A plurality of guide fins 160 are located on the water inlet pipe 120 and present a radial shape. A plurality of guide fins 160 extend obliquely toward the two-flow channels PA, and are used to guide the cooling liquid 300 to flow into the two-flow channels PA respectively, so as to prevent the cooling liquid 300 from colliding with the rear plate 114, the partition plate 150 and the cooling fins. 140 to produce turbulent flow, backflow and other phenomena, which is not conducive to the flow of the cooling liquid 300, and also affects the cooling effect.

In this embodiment, there is one at least one auxiliary fin 170 , which is disposed on the bottom plate 112 and located between the partition plate 150 and the front plate 113 . The thickness of the auxiliary fins 170 is smaller than the thickness of each group of cooling fins 140 . The pair of auxiliary fins 170 is located in the water outlet pipe 130 , that is, disposed between two groups of cooling fins 140 . In addition, since the vertical height H1 of the top T of the auxiliary fin 170 relative to the base plate 112 is equal to or lower than the vertical height H2 of the bottom B of the outlet pipe 130 relative to the base plate 112 , when the cooling liquid 300 passes through each group of cooling fins 140 and contacts When the auxiliary fins 170 are used, the auxiliary fins 170 will not block the flow of the coolant 300 to the water outlet pipe 130 . In detail, the auxiliary fins 170 are mainly used to enhance the heat transfer performance of the bottom plate 112 between the partition plate 150 and the front plate 113, since the cooling liquid 300 flows along the two-flow channel PA to a place close to the water outlet pipe 130 When the base plate 112 has absorbed the waste heat transmitted from the heat source 200 to the two sets of cooling fins 140 and heated up, the heat dissipation effect of the coolant 300 on the base plate 112 here has declined, which will cause the waste heat of the heat source 200 to concentrate on the base plate 112 here. resulting in high temperature. Through the auxiliary fins 170, the heat transfer performance of the bottom plate 112 here can be further improved, so as to avoid high temperature due to waste heat concentration.

Other embodiments are listed below for illustration. It must be noted here that the following embodiments follow the components and parts of the previous embodiments, wherein the same symbols are used to indicate the same or similar components, and descriptions of the same technical content are omitted. For the description of omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.

2A is a schematic plan view of a liquid-cooled radiator according to another embodiment of the present invention. Please refer to FIG. 2A , the difference between the liquid-cooled radiator 100A of this embodiment and the liquid-cooled radiator 100 of the above-mentioned embodiment is that:

The number of at least one water outlet pipe 130A of the liquid-cooled radiator 100A in this embodiment is two, and the two water outlet pipes 130A are arranged at intervals outside the front plate 113a of the casing 110A. The water inlet pipe 120A is disposed on the top plate 111a and close to the side of the rear plate 114a, and the partition plate 150A is penetrated between two sets of cooling fins 140A to form a two-flow channel PA. The length direction LD of the partition 150A is parallel to the axial direction A2 of each outlet pipe 130A, and the end 151A of the partition 150A abuts against the front plate 113a of the housing 110A and is located between the two outlet pipes 130A. Furthermore, a plurality of guide fins 160A are located opposite to the water inlet pipe 120A and arranged radially on the bottom plate 112a, and extend obliquely towards the two flow channels PA respectively. In short, the cooling liquid 300 enters the casing 110A from the water inlet pipe 120A, and produces an impact cooling effect on the bottom plate 112a, and then the cooling liquid 300 is guided by a plurality of guide fins 160A to flow into the two flow channels PA respectively, and flow to the corresponding outlet. Water pipe 130A to leave the housing 110A.

2B is a schematic plan view of a liquid-cooled radiator according to another embodiment of the present invention.

The liquid-cooled radiator 100B of this embodiment is similar to the liquid-cooled radiator 100A of the above-mentioned embodiment, but the difference lies in:

The liquid-cooled radiator 100B of this embodiment has two water outlet pipes 130B, and the two water outlet pipes 130B are arranged at intervals outside the front plate 113b of the casing 110B. The water inlet pipe 120B is arranged at the center of the top plate 111b. A plurality of guide fins 160B are located opposite to the water inlet pipe 120B and arranged radially on the bottom plate 112b, and extend obliquely toward the two flow passages PA of the casing 110B respectively. The two auxiliary fins 170B are disposed on the bottom plate 112b and located between the rear plate 114b and the front plate 113b. Furthermore, the two auxiliary fins 170B are located outside the plurality of groups of cooling fins 140B and are respectively aligned with the water outlet pipes 130B, so as to enhance the heat dissipation effect of the bottom plate 112b. In short, the cooling liquid 300 enters the casing 110B from the water inlet pipe 120B, and produces an impact cooling effect on the center of the bottom plate 112a, and then the cooling liquid 300 is guided by a plurality of guide fins 160B into the two flow channels PA, and flows to the corresponding Two water outlet pipes 130B to leave the casing 110B. The liquid-cooled radiator 100B of this embodiment does not need to be equipped with a partition plate, and the cooling liquid 300 can flow into the two-flow channel PA after entering the housing 110B by utilizing the positions of the water inlet pipe 120B and the guide fins 160B.

Based on the above, in the liquid-cooled radiator of the present invention, the axial direction of at least one water outlet pipe and the axial direction of at least one water inlet pipe have an included angle between 70 degrees and 110 degrees. When the water pipe enters the casing, it can produce an impact cooling effect on a part of the bottom plate of the casing, so as to improve the heat dissipation effect. In addition, through the configuration of the two flow channels, the cooling liquid can obtain better flow distribution, so that the cooling liquid can quickly pass through each group of cooling fins and take away the waste heat at the same time. The water outlet pipe leaves the casing, thereby achieving the purpose of improving the heat transfer performance of the liquid-cooled radiator.

Furthermore, the liquid-cooled radiator of the present invention also has guide fins and auxiliary fins. The guide fins can be used to prevent the coolant from colliding with the rear plate, partition plate and heat dissipation fins during the flow process. It is not conducive to the phenomenon of turbulence and backflow of coolant flow. The auxiliary fins are used to improve the heat transfer performance of the bottom plate, so as to prevent the waste heat from the heat source from being concentrated in a specific area of the bottom plate to generate high temperature. Comparing the embodiment of the utility model with the conventional technology, the liquid-cooled radiator of the utility model has a thermal resistance drop of 14% and a pressure drop of 7% reduction.

The above is only a preferred embodiment of the utility model, and should not limit the scope of implementation of the utility model, that is, all simple equivalent changes and modifications made according to the claims of the utility model and the description are still valid. It belongs to the scope covered by the utility model patent. In addition, any embodiment or claim of the present utility model does not need to achieve all the purposes, advantages or features disclosed in the present utility model. In addition, the abstract part and the title of the invention are only used to assist the retrieval of patent documents, and are not used to limit the scope of rights of the utility model. In addition, terms such as "first" and "second" mentioned in this specification or the scope of the patent application are only used to name elements (Element) or to distinguish different embodiments or ranges, and are not used to limit the number of elements. upper or lower limit.

Claims (11)

1. A liquid-cooled heat sink, comprising: the heat dissipation device comprises a shell, at least one water inlet pipe, at least one water outlet pipe, two groups of heat dissipation fins and a partition plate; wherein,

the shell is provided with a top plate, a bottom plate, a front plate, a rear plate and two opposite side plates, and the top plate, the bottom plate, the front plate, the rear plate and the two side plates form an accommodating space;

the at least one water inlet pipe is arranged outside the top plate of the shell and communicated with the accommodating space;

the at least one water outlet pipe is arranged outside the front plate of the shell and communicated with the accommodating space;

the two groups of radiating fins are arranged in the accommodating space and are mutually spaced; and

the partition plate is arranged in the accommodating space and penetrates between the two groups of radiating fins so as to form at least two flow channels in the accommodating space, wherein the cooling liquid flows into the accommodating space from the at least one water inlet pipe, and the partition plate blocks the cooling liquid to respectively flow into the at least two flow channels and respectively pass through the two groups of radiating fins.

2. The liquid-cooled radiator as claimed in claim 1, wherein the axial direction of the at least one outlet pipe and the axial direction of the at least one inlet pipe have an included angle of 70 degrees to 110 degrees, and the partition is offset from the at least one inlet pipe.

3. The liquid-cooled radiator as claimed in claim 1, wherein the length direction of the partition is perpendicular to the axial direction of the at least one outlet pipe.

4. The liquid-cooled heat sink as claimed in claim 1, further comprising a plurality of guide fins disposed between the partition and the back plate and aligned with the at least one inlet pipe.

5. The liquid-cooled heat sink as claimed in claim 4, wherein the plurality of fins are radial and extend towards the at least two flow channels, respectively, and when the cooling liquid enters the housing from the at least one inlet pipe, the plurality of fins direct the cooling liquid to the at least two flow channels, respectively, through the two sets of fins, and out of the housing from the at least one outlet pipe.

6. The liquid-cooled heat sink as claimed in claim 1, further comprising at least one auxiliary fin disposed on the bottom plate between the partition and the front plate, the at least one auxiliary fin being located in the at least one outlet pipe.

7. The liquid-cooled heat sink as claimed in claim 6, wherein a vertical height of a top of the at least one auxiliary fin with respect to the base plate is equal to or lower than a vertical height of a bottom of the at least one outlet pipe with respect to the base plate.

8. The liquid-cooled radiator as claimed in claim 1, wherein the at least one inlet pipe has an axial direction perpendicular to the bottom plate of the housing, and the at least one outlet pipe has an axial direction parallel to the bottom plate of the housing.

9. The liquid-cooled heat sink of claim 1, wherein the two sets of fins are each connected between the top plate and the bottom plate of the housing.

10. The liquid-cooled heat sink as claimed in claim 1, wherein the two sets of fins comprise plate fins or column fins.

11. The liquid cooled heat sink of claim 1, wherein the base plate is adapted to contact a heat source.