CN208459759U - 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

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

Most traditional projectors use high-pressure mercury lamps as the light source 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 device, so the semiconductor device has higher requirements for heat dissipation efficiency.

Today, a water-cooled heat dissipation module is attached to a heat source to dissipate heat. Cooling water flows into the heat dissipation module to absorb waste heat, and the waste heat is dissipated into the outside air through conduction and convection. However, most of the existing water-cooled heat dissipation modules use heat dissipation fins formed by stamping metal sheets. The cooling water enters the heat dissipation module to contact the heat dissipation fins, and the water 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 cooling water has heated up and the heat transfer performance of the cooling fins has been greatly reduced. As a result, some areas of the heat source cannot be effectively dissipated, thereby affecting the operation of the semiconductor light source.

The "background art" paragraph is only used to help understand the content of the present invention, so the content disclosed in the "background art" paragraph may contain some known technologies that are not known to those skilled in the art. The content disclosed in the "Background Art" paragraph does not represent the content or the problem to be solved by one or more embodiments of the present invention, and has been known or recognized by those skilled in the art before the present invention is filed.

Utility model content

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

A liquid-cooled radiator of the utility model comprises: a casing, which has 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 a container set 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 plate of the casing and communicates with the accommodating space. A plurality of sets of heat dissipation fins are arranged in the accommodating space and spaced apart from each other. The partition plate is arranged in the accommodating space, and the partition plate is located between the plurality of sets of heat dissipation fins to form at least two flow channels 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 plate is staggered at the at least one water inlet pipe.

A liquid-cooled radiator of the utility model comprises: a casing, which has 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 a container set space. At least one water inlet pipe is arranged outside the top plate of the casing and communicates with the accommodating space. The two water outlet pipes are arranged outside the front plate of the casing and communicate with the accommodating space. A plurality of sets of heat dissipation 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, at least two flow channels correspond to two water outlet pipes respectively, 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 degrees and 110 degrees.

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 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 a better flow distribution, so that the cooling liquid can quickly pass through each group of heat dissipation fins and take away waste heat at the same time. Leave the casing, and then achieve the purpose of improving the heat transfer performance of the liquid-cooled radiator.

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 of FIG. 1A;

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

1D is a schematic perspective view of a 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 of FIG. 1D;

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

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

Description of reference numerals

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 panel

115: Side panels

120, 120A, 120B: water inlet pipe

130, 130A, 130B: outlet pipe

140, 140A, 140B: cooling fins

150, 150A: Separator

151A: End

160, 160A, 160B: deflector fins

170, 170A, 170B: Auxiliary fins

200: heat source

AS: accommodation space

A1, A2: Axial

LD: length direction

H1, H2: vertical height

AN: included angle

PA: flow channel

Detailed ways

The foregoing and other technical contents, features and effects 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 rear, etc., are only for referring to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and 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 of FIG. 1A . FIG. 1C is a schematic cross-sectional perspective view A-A of the liquid-cooled radiator of FIG. 1A . FIG. 1D is a schematic perspective view of a 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 of FIG. 1D .

Referring to FIG. 1A , the liquid-cooled radiator 100 of the present embodiment is suitable for disposing 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. 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 sources 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 thermal conduction, so as to achieve a cooling effect when the heat source 200 is operating, preventing the heat source 200 from affecting its operation due to excessive temperature.

Referring to FIGS. 1A to 1C , the liquid-cooled radiator 100 of the present embodiment includes a casing 110 , at least one water inlet pipe 120 , at least one water outlet pipe 130 , a plurality of sets of heat dissipation fins 140 and a partition 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 side plates 115 form an accommodation space AS. 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, and 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 and the heat source 200 of the casing 110 . In addition, the water inlet pipe 120 is, for example, located on the side of the top plate 111 close to the rear plate 114 . In addition, in other embodiments, the number of water inlet pipes may also be multiple, 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 disposed 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 pipe 130 is parallel to the bottom plate 112 of the casing 110. There is a spaced distance between the bottom of the water pipe 130 and the bottom plate 112 of the housing 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 suitable for flowing out of the housing from the water outlet pipe 130 along the axial direction A2. 110. Specifically, 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.

A plurality of sets of heat dissipation fins 140 (two sets 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 casing 110 , that is, two ends of the heat dissipation fins 140 abut against the top plate 111 and the bottom plate 112 respectively. Further, the two sets of heat dissipation fins 140 are located on both sides of the water inlet pipe 120 , so that each group of heat dissipation fins 140 and the water inlet pipe 120 are separated from each other. When the cooling liquid 300 flows from the water inlet pipe 120 , it can avoid directly touching the heat dissipation fins. The inflow pressure of the cooling liquid 300 is too high due to the fin 140 . Since the water inlet pipe 120 faces the bottom plate 112 of the casing 110 downward, after the cooling liquid 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 set of heat dissipation fins 140 includes plate-shaped fins, column-shaped 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 formed by stacking a plurality of independent heat dissipation units.

The partition plate 150 is disposed in the accommodating space AS and between the plurality of sets of heat dissipation fins. In detail, the separator 150 passes through the two sets of heat dissipation fins 140 , and the length direction LD of the separator 150 is parallel to the front panel 113 and the rear panel 114 of the housing 110 , wherein the separator 150 is opposite to the front panel 113 and the rear panel 114 . The distances between the plates 114 are the same, and two-flow channels PA in the form of a U-shaped loop are formed in the accommodating space AS. The length direction LD of the partition plate 150 is also perpendicular to the axial directions A2 and A1 of the water outlet pipe 130 and the water inlet pipe 120 respectively, so that the two flow channels PA are symmetrical and have the same flow rate of the cooling liquid 300 . In addition, the partition plate 150 is staggered in the water inlet pipe 120. When the cooling liquid 300 enters the casing 110 from the water inlet pipe 120 along the axis A1, the cooling liquid 300 first contacts the bottom plate 112, and is then blocked by the rear plate 114 and the partition plate 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 to achieve the effect of flow distribution. Finally, the cooling liquid 300 converges between the front plate 113 and the partition plate 150 , and leaves the casing 110 through the water outlet pipe 130 along the axial direction A2 to complete a flow cycle of the cooling liquid 300 .

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

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

Other embodiments are listed below for illustration. It must be noted here that the following embodiments use the component marks and parts of the foregoing embodiments, wherein the same marks are used to represent the same or similar components, and the description of the same technical content is omitted. For the description of the omitted part, reference may be made to the foregoing embodiments, and repeated descriptions in 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. Referring to FIG. 2A , the difference between the liquid-cooled radiator 100A of the present embodiment and the liquid-cooled radiator 100 of the above-mentioned embodiment is:

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 outside the front plate 113a of the housing 110A at intervals. 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 inserted between the two sets of heat dissipation fins 140A to form two flow channels PA. The longitudinal direction LD of the partition plate 150A is parallel to the axial direction A2 of each water outlet pipe 130A, and the end 151A of the partition plate 150A abuts against the front plate 113a of the casing 110A and is located between the two water outlet pipes 130A. Further, the plurality of guide fins 160A are located in the water inlet pipe 120A, and are radially arranged on the bottom plate 112a, and respectively extend obliquely toward the two flow channels PA. In short, the cooling liquid 300 enters the housing 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 the plurality of guide fins 160A to flow into the two flow channels PA respectively, and flows to the corresponding outlet. Water pipe 130A to exit 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 differences are:

The liquid-cooled radiator 100B of this embodiment has two water outlet pipes 130B, and the two water outlet pipes 130B are arranged outside the front plate 113b of the housing 110B at intervals. The water inlet pipe 120B is arranged at the center of the top plate 111b. The plurality of guide fins 160B are located in the water inlet pipe 120B and are radially arranged on the bottom plate 112b, and respectively extend obliquely toward the two flow channels PA of the housing 110B. The two auxiliary fins 170B are disposed on the bottom plate 112b and located between the rear plate 114b and the front plate 113b. Further, the two auxiliary fins 170B are located outside the plurality of sets of heat dissipation fins 140B and are respectively aligned with the water outlet pipes 130B, so as to improve 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 generates an impact cooling effect on the center of the bottom plate 112a, and then the cooling liquid 300 is guided by the plurality of guide fins 160B into the two-flow channel PA, and flows to the corresponding The two water outlet pipes 130B leave the housing 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 be divided into the two-flow channel PA after entering the housing 110B by using the arrangement position 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 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 a better flow distribution, so that the cooling liquid can quickly pass through each group of heat dissipation fins and take away 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.

Further, the liquid-cooled radiator of the present invention also has guide fins and auxiliary fins, and the guide fins can prevent the cooling liquid from colliding with the rear plate, the partition plate and the cooling fins during the flow process. It is not conducive to the turbulence and backflow of the coolant flow. The auxiliary fins are used to improve the heat transfer performance of the base plate and avoid the waste heat of the heat source being concentrated in a specific area of the base plate to generate high temperature. By simulating and comparing the embodiment of the present invention with the prior art, the liquid-cooled radiator of the present invention has a 14% decrease in thermal resistance and a lower pressure drop compared to the known radiator under the same heat source and external dimensions. 7% lower.

The above are only the preferred embodiments of the present invention, and should not limit the scope of implementation of the present invention, that is, any simple equivalent changes and modifications made according to the claims and descriptions of the present invention are still It belongs to the scope covered by this utility model patent. In addition, it is not necessary for any embodiment or claim of the present invention to achieve all of the objects or advantages or features disclosed in the present invention. 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 present 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 the elements or to distinguish different embodiments or ranges, rather than to limit the number of elements. upper or lower limit.

Claims (18)

1. A liquid-cooled radiator, characterized in that it comprises: a casing, at least one water inlet pipe, at least one water outlet pipe, multiple groups of radiating fins and partitions; wherein, The housing has 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 side plates constitute an accommodation space; The at least one water inlet pipe is disposed outside the top plate of the casing and communicates with the accommodating space; The at least one water outlet pipe is disposed outside the front plate of the housing and communicates with the accommodating space; the plurality of sets of heat dissipation fins are disposed in the accommodating space and spaced apart from each other; and The partition plate is disposed in the accommodating space, and the partition plate is located between the plurality of sets of heat dissipation fins to form at least two flow channels 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 plate is staggered in the at least one water inlet pipe. 2 . The liquid-cooled radiator according to claim 1 , wherein the length directions of the partition plates are respectively perpendicular to the axial direction of the at least one water outlet pipe. 3 . 3 . The liquid-cooled radiator according to claim 1 , wherein there are two at least one water outlet pipe, the length direction of the partition plate is parallel to the axial direction of each of the two water outlet pipes, and the The end of the partition is in contact with the front plate and is located between the two water outlet pipes. 4 . The liquid-cooled radiator according to claim 1 , further comprising a plurality of guide fins, which are arranged between the partition plate and the rear plate, and are opposite to the at least one inlet. 5 . water pipe. 5 . The liquid-cooled radiator according to claim 4 , wherein the plurality of guide fins are radial and extend toward the at least two flow channels respectively. When the cooling liquid flows from the at least one flow channel. When the water inlet pipe enters the casing, the plurality of guide fins guide the cooling liquid to the at least two flow channels respectively and pass through the corresponding sets of the plurality of heat dissipation fins, and the cooling liquid is guided by the at least one The outlet pipe leaves the housing. 6 . The liquid-cooled radiator according to claim 1 , further comprising at least one auxiliary fin disposed on the bottom plate and between the partition plate and the front plate, the at least one auxiliary fin. 7 . The pair of fins is located on the at least one water outlet pipe. 7 . The liquid-cooled radiator according to claim 6 , wherein the vertical height of the top of the at least one auxiliary fin relative to the bottom plate is equal to or lower than the bottom of the at least one water outlet pipe relative to the bottom plate. 8 . The vertical height of the base plate. 8 . The liquid-cooled radiator according to claim 1 , wherein the axial direction of the at least one water inlet pipe is perpendicular to the bottom plate of the housing, and the axial direction of the at least one water outlet pipe is parallel to the The bottom plate of the housing is adapted to contact a heat source. 9 . The liquid-cooled radiator according to claim 1 , wherein each group of the heat dissipation fins is connected between the top plate and the bottom plate of the housing. 10 . 10 . The liquid-cooled radiator according to claim 1 , wherein each group of the heat dissipation fins comprises plate fins or columnar fins. 11 . 11. A liquid-cooled radiator, comprising: a casing, at least one water inlet pipe, two water outlet pipes, and multiple sets of heat dissipation fins; wherein, The housing has 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 side plates constitute an accommodation space; The at least one water inlet pipe is disposed outside the top plate of the casing and communicates with the accommodating space; The two water outlet pipes are disposed outside the front plate of the housing and communicate with the accommodating space; and The plurality of sets of heat dissipation fins are disposed 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 the two water outlet pipes, and the axial direction of the two water outlet pipes is 70 degrees from the axial direction of the at least one water inlet pipe. to 110 degrees. 12 . The liquid-cooled radiator according to claim 11 , further comprising a plurality of guide fins, located opposite to the at least one water inlet pipe, and the at least one water inlet pipe is arranged in the center of the top plate. 13 . place. 13 . The liquid-cooled radiator according to claim 12 , wherein the plurality of guide fins are radial and extend toward the at least two flow channels respectively. When the cooling liquid flows from the at least one flow channel. When the water inlet pipe enters the casing, the plurality of guide fins guide the cooling liquid to the at least two flow channels respectively and pass through the corresponding plurality of sets of heat dissipation fins, and are discharged from the two outlets. The water pipe leaves the housing. 14. The liquid-cooled radiator according to claim 11, further comprising at least two auxiliary fins disposed on the bottom plate and between the rear plate and the front plate, the at least two auxiliary fins being disposed on the bottom plate and between the rear plate and the front plate. Two auxiliary fins are located outside the plurality of sets of heat dissipation fins and are respectively located opposite to the two water outlet pipes. 15. The liquid-cooled radiator according to claim 14, wherein the vertical heights of the tops of the two auxiliary fins relative to the bottom plate are equal to or lower than the bottoms of the two water outlet pipes relative to the bottom plate. The vertical height of the base plate. 16 . The liquid-cooled radiator according to claim 11 , wherein the axial direction of the at least one water inlet pipe is perpendicular to the bottom plate of the housing, and the axial direction of the two water outlet pipes is parallel to the axial direction of the two water outlet pipes. The bottom plate of the casing is suitable for contacting a heat source. 17 . The liquid-cooled radiator according to claim 11 , wherein each group of the heat dissipation fins is connected between the top plate and the bottom plate of the housing. 18 . 18 . The liquid-cooled radiator according to claim 11 , wherein each group of the heat dissipation fins comprises plate-shaped fins or column-shaped fins. 19 .