Liquid cooling head

Abstract

A liquid cooling head comprises a base, a body, a partition cover plate, a first sealing ring and a second sealing ring, the body is arranged on the base and provided with a first liquid receiving opening, a first blind groove, a second liquid receiving opening and a second blind groove, the first liquid receiving opening and the first blind groove are communicated, and the second liquid receiving opening and the second blind groove are communicated. The partition cover plate is provided with a first protruding block, a second protruding block, a first through groove and a second through groove, the first protruding block fills the first blind groove to form a first channel, the second protruding block fills the second blind groove to form a second channel, and the heat exchange cavity communicates with the first channel and the second channel through the first through groove and the second through groove correspondingly. The first sealing ring is arranged between the base and the body and surrounds the separation cover plate, and the second sealing ring is arranged between the base and the body and surrounds the first sealing ring; therefore, the sealing performance of the liquid cooling head and the positioning effect between the elements can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of liquid cooling heat dissipation, in particular to a liquid cooling head with good sealing performance. BACKGROUND

[0002] In recent years, in response to the development of various electronic products towards high performance and thinness, liquid cooling heat dissipation is gradually widely used as the main means of heat dissipation. In the liquid cooling heat dissipation system, the liquid cooling head is directly attached to the heat source of the electronic component to absorb the heat energy generated by the heat source, and the cooling liquid flowing through the liquid cooling head is used to preliminarily dissipate heat, and the cooling liquid further carries the heat energy absorbed by the liquid cooling head to the liquid cooling radiator for secondary heat dissipation, so as to achieve good heat dissipation efficiency. In order to facilitate manufacturing, the existing liquid cooling head is mostly split into two pieces of base and body, and then the two are combined and fixed by welding or locking.

[0003] However, due to the existence of narrow gaps between the base and the body, the combination surface cannot be tightly sealed, which may cause the cooling liquid to leak between the base and the body, thereby causing damage to the electronic components. In addition, when the base and the body are combined and fixed, the two often slide or displace relative to each other, thereby affecting the convenience during assembly and combination. SUMMARY

[0004] The main purpose of the utility model is to effectively improve the sealing performance of the liquid cooling head and increase the positioning effect between the elements, thereby preventing the leakage of the cooling liquid and improving the convenience of the elements during assembly.

[0005] In order to achieve the above purpose, the utility model provides a liquid cooling head, which comprises a base, a body, a partition cover plate, a first sealing ring and a second sealing ring. The base has a fin group, the body is arranged on the base corresponding to the fin group, the body has a first liquid inlet, a second liquid inlet, a first blind groove and a second blind groove, the first liquid inlet communicates with the first blind groove, the second liquid inlet communicates with the second blind groove, the partition cover plate is arranged between the base and the body and covers the fin group to form a heat exchange chamber, the partition cover plate has a first protrusion, a second protrusion, a first through groove and a second through groove, the first protrusion fills a part of the first blind groove to form a first channel, the second protrusion fills a part of the second blind groove to form a second channel, the heat exchange chamber communicates with the first channel through the first through groove, the heat exchange chamber communicates with the second channel through the second through groove, the first sealing ring is arranged between the base and the body and surrounds the partition cover plate, and the second sealing ring is arranged between the base and the body and surrounds the first sealing ring.

[0006] In an embodiment of the utility model, the fin group comprises a plurality of heat dissipation fins, each heat dissipation fin is parallel to each other, the first through groove is perpendicular to each heat dissipation fin, and the second through groove is parallel to each heat dissipation fin.

[0007] In an embodiment of the present application, the first through slot is arranged at the center of each heat dissipation fin, and the second through slot is arranged at one side of each heat dissipation fin.

[0008] In an embodiment of the present application, the first protrusion is in a strip shape or an L shape.

[0009] In an embodiment of the present application, the body further has an acceleration chamber, and the first through slot is communicated with the first channel through the acceleration chamber.

[0010] In an embodiment of the present application, the body further has a first annular groove and a second annular groove, at least a part of the first sealing ring is accommodated in the first annular groove, and at least a part of the second sealing ring is accommodated in the second annular groove.

[0011] In an embodiment of the present application, the first liquid inlet is perpendicular to the first channel.

[0012] In an embodiment of the present application, the second liquid inlet is perpendicular to the second channel.

[0013] In an embodiment of the present application, the first liquid inlet and the second liquid inlet are located at the same side of the body.

[0014] In an embodiment of the present application, the base has a groove, the fin group is located in the groove, and the partition cover plate is clamped in the groove.

[0015] The liquid cooling head of the present application can effectively improve the sealing property of the liquid cooling head to avoid leakage of the cooling liquid by arranging the first sealing ring between the base and the body and around the periphery of the partition cover plate, and arranging the second sealing ring between the base and the body and around the periphery of the first sealing ring, and can also increase the positioning effect between the elements to improve the convenience of assembly of the elements by filling a part of the first blind groove with the first protrusion of the partition cover plate to form the first channel, and filling a part of the second blind groove with the second protrusion of the partition cover plate to form the second channel. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above-mentioned features, technical characteristics, advantages and implementation modes of the liquid cooling head will be further described in a clear and understandable manner in combination with the preferred embodiments and the accompanying drawings.

[0017] Figure 1 is a perspective view of the present application.

[0018] Figure 2 is an exploded view of the present application.

[0019] Figure 3 is a sectional front view of the present application.

[0020] Figure 4 is a sectional side view of the present application.

[0021] Figure 5 is a sectional top view of the present application.

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 10: base, 11: fin group, 111: heat dissipation fin, 12: groove, 20: body, 21: first liquid inlet, 22: second liquid inlet, 23: first blind groove, 24: second blind groove, 25: acceleration chamber, 26: through hole, 27: first annular groove, 28: second annular groove, 30: partition cover plate, 31: first protrusion, 32: second protrusion, 33: first through groove, 34: second through groove, 40: first sealing ring, 50: second sealing ring, 60: heat exchange chamber, 70: first channel, 80: second channel. DETAILED DESCRIPTION

[0024] In the description of the present application, it is to be understood that the terms "front side", "rear side", "left side", "right side", "front end", "rear end", "terminal end", "longitudinal", "transverse", "vertical", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limiting condition of the present application.

[0025] As used herein, terms such as "first", "second", "third", "fourth" and "fifth" describe various elements, components, regions, levels, or portions, which should not be limited by these terms. These terms can only be used to distinguish one element, component, region, level, or portion from another. Unless the context clearly indicates otherwise, the terms "first", "second", "third", "fourth", and "fifth" used herein do not imply order or sequence.

[0026] As used herein and unless otherwise defined, the terms "substantially" and "approximately" are used to describe and account for small variations. When used in connection with an event or circumstance, the terms can include the exact occurrence of the event or circumstance, as well as the occurrence of the event or circumstance to a close approximation. For example, when used in connection with a numerical value, the terms can include a range of variation less than or equal to ±10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0027] The detailed description and technical content of the present application will be described as follows with the aid of the drawings. However, the drawings are only used for illustration and not intended to limit the present application.

[0028] The present application provides a liquid cooling head, which can be used for flowing through a cooling liquid (not shown) and dissipating heat from a geothermal source attached to the liquid cooling head. Please refer to Figures 1 to 5 The liquid cooling head of the present application comprises a base 10, a body 20, a partition cover 30, a first sealing ring 40 and a second sealing ring 50.

[0029] In the present embodiment, the base 10 is in the shape of a rectangular plate and is made of metal with good thermal conductivity. However, the present application is not limited thereto. The base 10 has a fin set 11. The fin set 11 is located on the top of the base 10. The fin set 11 comprises a plurality of heat dissipation fins 111 arranged in parallel along a longitudinal direction. A heat dissipation channel (not shown) is formed between any two adjacent heat dissipation fins 111. In the present embodiment, the heat dissipation fins 111 are substantially parallel to each other and are integrally formed on the base 10 by casting or shaving. However, the present application is not limited thereto. In other words, the heat dissipation fins 111 can be arranged in parallel with different intervals, and the heat dissipation fins 111 can be fixed on the base 10 by welding, locking, bonding or clamping.

[0030] In the embodiment, the body 20 is in the shape of a rectangular body and is made of metal with good thermal conductivity, but the utility model is not limited thereto. The body 20 is arranged on the top of the base 10 corresponding to the fin group 11. Specifically, the body 20 in the embodiment is locked with the base 10 by a plurality of bolts (not shown in the figure), but in other embodiments, it can also be combined and fixed by welding or other ways. The body 20 mainly has a first liquid inlet 21, a second liquid inlet 22, a first blind groove 23 and a second blind groove 24. The first liquid inlet 21 and the second liquid inlet 22 in the embodiment are located on the same side of the body 20 and on the top of the body 20, but the utility model is not limited thereto, and the first liquid inlet 21 and the second liquid inlet 22 can also be arranged on different sides of the body 20 or on the left side, the right side, the front side or the back side of the body 20 according to requirements. The first blind groove 23 and the second blind groove 24 are arranged on the bottom of the body 20. The first liquid inlet 21 is communicated with the first blind groove 23, and the second liquid inlet 22 is communicated with the second blind groove 24. In the embodiment, the first liquid inlet 21 and the second liquid inlet 22 are circular blind holes extending inward from the top of the body 20, and the first blind groove 23 and the second blind groove 24 are long strip-shaped blind grooves extending inward from the bottom of the body 20, but the utility model is not limited thereto, and the shapes of the first liquid inlet 21, the second liquid inlet 22, the first blind groove 23 and the second blind groove 24 can be adjusted accordingly according to different requirements.

[0031] The partition cover plate 30 is arranged between the base 10 and the body 20, and the partition cover plate 30 covers the fin group 11 to form a heat exchange chamber 60 together with the base 10. Specifically, the partition cover plate 30 is a rectangular cover structure, that is, the partition cover plate 30 is composed of a plate body and a surrounding wall arranged around the outer periphery of the bottom surface of the plate body, and can cover and shield the fin group 11. The partition cover plate 30 has a first protrusion 31, a second protrusion 32, a first through slot 33, and a second through slot 34. The first protrusion 31 and the second protrusion 32 are arranged at the top of the partition cover plate 30, and the first through slot 33 and the second through slot 34 are arranged in the up-down direction of the partition cover plate 30 (that is, through the top and bottom of the partition cover plate 30). The first protrusion 31 corresponds to a part of the first blind slot 23, so that the first protrusion 31 and the first blind slot 23 together form a first channel 70. The second protrusion 32 corresponds to a part of the second blind slot 24, so that the second protrusion 32 and the second blind slot 24 together form a second channel 80. The heat exchange chamber 60 is connected to the first channel 70 through the first through slot 33, so as to be connected to the first liquid inlet 21 through the first channel 70. The heat exchange chamber 60 is also connected to the second channel 80 through the second through slot 34, so as to be connected to the second liquid inlet 22 through the second channel 80. In addition, the first liquid inlet 21 in the embodiment is substantially perpendicular to the first channel 70, and the second liquid inlet 22 is substantially perpendicular to the second channel 80, so as to reduce the pressure of the cooling liquid when entering or leaving the body 20.

[0032] In the embodiment, the first sealing ring 40 and the second sealing ring 50 are both made of rubber, but the utility model is not limited thereto. The first sealing ring 40 is arranged between the base 10 and the body 20, and surrounds the outer periphery of the partition cover plate 30. The second sealing ring 50 is also arranged between the base 10 and the body 20, and surrounds the outer periphery of the first sealing ring 40. In this way, by arranging the first sealing ring 40 between the base 10 and the body 20 and surrounding the outer periphery of the partition cover plate 30, and arranging the second sealing ring 50 between the base 10 and the body 20 and surrounding the outer periphery of the first sealing ring 40, the sealing performance of the liquid cooling head can be effectively improved. In addition, by forming the first channel 70 by filling a part of the first blind slot 23 with the first protrusion 31 of the partition cover plate 30, and forming the second channel 80 by filling a part of the second blind slot 24 with the second protrusion 32 of the partition cover plate 30, the positioning effect between the components can be improved, so as to improve the assembly convenience and the overall structural strength.

[0033] Further, the base 10 has a groove 12. The groove 12 is located at the top of the base 10, and the fin group 11 is located in the groove 12. Specifically, the groove 12 can be formed together with the fin group 11 during the process of spading each heat dissipation fin 111, or be formed together during casting, and the utility model does not limit this. In this embodiment, the surrounding wall of the partition cover plate 30 is clamped on the inner wall of the groove 12, so that the bottom surface of the groove 12 and the plate body and the surrounding wall of the partition cover plate 30 together form the heat exchange chamber 60, and the partition cover plate 30 is positioned relative to the base 10, but the utility model does not limit this.

[0034] In this embodiment, the first through groove 33 of the partition cover plate 30 is substantially perpendicular to each heat dissipation fin 111, and the first through groove 33 is arranged at the center of each heat dissipation fin 111. In this way, when the cooling liquid enters the first through groove 33 from each heat dissipation channel of the heat exchange chamber 60 or the cooling liquid enters each heat dissipation channel of the heat exchange chamber 60 from the first through groove 33, the uniform flow of the cooling liquid can be ensured without being easily hindered or slowed down. In addition, the second through groove 34 in this embodiment is substantially parallel to each heat dissipation fin 111, and the second through groove 34 is arranged on one side of each heat dissipation fin 111. In this way, when the cooling liquid enters the second through groove 34 from each heat dissipation channel of the heat exchange chamber 60 or the cooling liquid enters each heat dissipation channel of the heat exchange chamber 60 from the second through groove 34, the uniform flow of the cooling liquid can be ensured without being easily hindered or slowed down.

[0035] Further, the first protrusion 31 and the second protrusion 32 can be rectangular, circular, diamond-shaped, polygonal, irregular, strip-shaped or L-shaped, or other shapes not mentioned, and those with ordinary knowledge in the art should be able to adjust according to different needs. In this embodiment, the first protrusion 31 is strip-shaped, and the second protrusion 32 is L-shaped, but the utility model does not limit this. In this way, the first protrusion 31 and the second protrusion 32 of the partition cover plate 30 are clamped in the first through groove 33 and the second through groove 34 of the body 20, respectively, so that the partition cover plate 30 can be preliminarily positioned relative to the body 20 without relative shaking, and the preliminary positioning of the partition cover plate 30 and the body 20 improves the assembly convenience when the body 20 is combined with the base 10.

[0036] Further, the body 20 also has an acceleration chamber 25. The first through groove 33 is communicated with the first through channel 70 via the acceleration chamber 25. Specifically, the body 20 forms a through hole 26 at the bottom of the acceleration chamber 25 to communicate the acceleration chamber 25 with the first through groove 33 of the partition cover plate 30. In other words, the first liquid inlet 21 is sequentially communicated with the first through channel 70, the acceleration chamber 25, the through hole 26, the first through groove 33, and the heat exchange chamber 60. The acceleration chamber 25 is used to install a driver (not shown in the figure). The driver can be a pump or a fan, so that the cooling liquid is forced to flow in the liquid cooling head of the utility model by the suction or thrust generated by the driver when it is running. It should be noted that the flow direction of the cooling liquid can be determined according to the forward or reverse rotation of the driver, so the utility model does not limit that the cooling liquid enters the body 20 from the first liquid inlet 21 or the second liquid inlet 22.

[0037] More specifically, when the first liquid inlet 21 is used as the liquid inlet of the liquid cooling head of the utility model, the cooling liquid sequentially passes through the first liquid inlet 21, the first through channel 70, the acceleration chamber 25, the first through groove 33, the heat exchange chamber 60, the second through groove 34, the second through channel 80, and the second liquid inlet 22 to complete heat exchange and leave. When the second liquid inlet 22 is used as the liquid inlet of the liquid cooling head of the utility model, the cooling liquid sequentially passes through the second liquid inlet 22, the second through channel 80, the second through groove 34, the heat exchange chamber 60, the first through groove 33, the acceleration chamber 25, the first through channel 70, and the first liquid inlet 21 to complete heat exchange and leave.

[0038] Further, the bottom of the body 20 in the embodiment also has a first annular groove 27 and a second annular groove 28, but the utility model is not limited thereto, and in other embodiments, the first annular groove 27 and the second annular groove 28 can also be arranged on the top of the base 10, or the first annular groove 27 and the second annular groove 28 are arranged on the bottom of the body 20 and the top of the base 10, respectively. Specifically, the first annular groove 27 corresponds to surround the periphery of the partition cover plate 30, and the second annular groove 28 corresponds to surround the periphery of the first annular groove 27. At least a part of the first sealing ring 40 is accommodated in the first annular groove 27, and the first sealing ring 40 is elastically abutted between the first annular groove 27 and the base 10. At least a part of the second sealing ring 50 is accommodated in the second annular groove 28, and the second sealing ring 50 is elastically abutted between the second annular groove 28 and the base 10. In this way, the first sealing ring 40 can preliminarily prevent the cooling liquid from leaking out of the base 10, the body 20, and the partition cover plate 30, and the second sealing ring 50 can serve as a second layer to prevent the cooling liquid from leaking to the outside.

[0039] The liquid cooling head is characterized in that the first sealing ring 40 is arranged between the base 10 and the body 20 and surrounds the periphery of the partition cover plate 30, and the second sealing ring 50 is arranged between the base 10 and the body 20 and surrounds the periphery of the first sealing ring 40, so that the sealing property of the liquid cooling head can be effectively improved, and the first channel 70 is formed by the first protrusion 31 of the partition cover plate 30 filling a part of the first blind groove 23, and the second channel 80 is formed by the second protrusion 32 of the partition cover plate 30 filling a part of the second blind groove 24, so that the positioning effect between the elements can be increased.

[0040] In summary, the foregoing disclosed content of the utility model is to enable those skilled in the art to clearly understand the technical content of the utility model and to implement, and is not intended to limit the patent protection scope of the utility model. In addition, the utility model can of course have other unlisted various embodiments, and those skilled in the art should evolve various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model.

Claims

1. A liquid cooling head, comprising: a base (10) having a fin group (11); a body (20) disposed on the base (10) corresponding to the fin group (11), the body (20) having a first liquid inlet (21), a second liquid inlet (22), a first blind groove (23), and a second blind groove (24), the first liquid inlet (21) communicating with the first blind groove (23), the second liquid inlet (22) communicating with the second blind groove (24); a partition cover (30) disposed between the base (10) and the body (20) and covering the fin group (11) to form a heat exchange chamber (60), the partition cover (30) having a first protrusion (31), a second protrusion (32), a first through groove (33), and a second through groove (34), the first protrusion (31) filling a portion of the first blind groove (23) to form a first passage (70), the second protrusion (32) filling a portion of the second blind groove (24) to form a second passage (80), the heat exchange chamber (60) communicating with the first passage (70) via the first through groove (33), the heat exchange chamber (60) communicating with the second passage (80) via the second through groove (34); a first sealing ring (40) disposed between the base (10) and the body (20) and surrounding the partition cover (30); and a second sealing ring (50) disposed between the base (10) and the body (20) and surrounding the first sealing ring (40).

2. The liquid cold head of claim 1, wherein, wherein the fin group (11) comprises a plurality of heat dissipation fins (111), each of the heat dissipation fins (111) being parallel to each other, the first through groove (33) being disposed perpendicular to each of the heat dissipation fins (111), and the second through groove (34) being disposed parallel to each of the heat dissipation fins (111).

3. The liquid cold head of claim 2, wherein, wherein the first through groove (33) is disposed at a center of each of the heat dissipation fins (111), and the second through groove (34) is disposed at a side of each of the heat dissipation fins (111).

4. The liquid cold head of claim 1, wherein, wherein the first protrusion (31) is in a strip shape or an L shape. wherein the body (20) further has an acceleration chamber (25), and the first through groove (33) communicates with the first passage (70) via the acceleration chamber (25).

5. The liquid cold head of claim 1, wherein, wherein the body (20) further has a first annular groove (27) and a second annular groove (28), at least a portion of the first sealing ring (40) is accommodated in the first annular groove (27), and at least a portion of the second sealing ring (50) is accommodated in the second annular groove (28).

6. The liquid cold head of claim 1, wherein, wherein the first liquid inlet (21) is perpendicular to the first passage (70).

7. The liquid cold head of claim 1, wherein, wherein the second liquid inlet (22) is perpendicular to the second passage (80).

8. The liquid cold head of claim 1, wherein, wherein the first liquid inlet (21) and the second liquid inlet (22) are both located at a same side of the body (20).

9. The liquid cold head of claim 1, wherein, wherein the base (10) has a recess (12), the fin group (11) is located in the recess (12), and the partition cover (30) is clamped in the recess (12).

10. The liquid cold head of claim 1, wherein, ​

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