Water-cooling heat dissipation vapor chamber

Abstract

The utility model relates to the technical field of vapor chambers, and discloses a water-cooling heat dissipation vapor chamber which comprises a vapor chamber body, and a water-cooling assembly is arranged on the upper surface of the vapor chamber body. The water cooling assembly comprises a bottom frame, a sealing frame, a water cooling cover plate, a heat conduction piece, a water inlet heat preservation partition plate and a water outlet heat preservation partition plate. The sealing frame is integrally formed in an inner cavity of the bottom frame. Through cooperation of the heat conduction piece, the water inlet heat preservation partition plate and the water outlet heat preservation partition plate, cooling water is divided through the water inlet heat preservation partition plate, part of the cooling water dissipates heat of the vapor chamber body, the other part of the cooling water enters the water outlet heat exchange cavity below the water outlet heat preservation partition plate through the cold water inlet cavity and the lower circulation channel, and then heat exchange is conducted on the vapor chamber body at the water outlet end. And meanwhile, water in the water inlet heat exchange cavity is discharged from the hot water outlet cavity through the upper circulation channel, so that the influence on heat exchange at the water outlet end is avoided, and the heat dissipation efficiency of the vapor chamber main body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vapor chambers, in particular to a water-cooled heat dissipation vapor chamber. Background Art

[0002] A vapor chamber (also known as a VC) is an efficient heat dissipation device, usually made of copper, used for small electronic products that require rapid heat dissipation, such as computers. The vapor chamber is mainly sealed by an upper cover and a lower cover, and a capillary layer is arranged in the sealed inner cavity and filled with a working medium. The working medium absorbs the heat from the heat source at the evaporation end and evaporates. The steam flows to the condensation end under the action of the pressure difference and releases heat to condense. The condensed liquid returns to the evaporation end through the capillary structure to start the working cycle again.

[0003] In the prior art, the Chinese utility model with publication number: CN220526259U discloses a water-cooled heat sink, in which a water cooling part is arranged in the condensation area of ​​a conventional heat sink, and a heat conducting part and a liquid flow channel are arranged in the water cooling part, and the condensation area is heat-exchanged by circulating cooling water to accelerate the condensation efficiency of the working medium in the condensation area. The utility model sets the heat sink and the water cooling structure together, and the heat sink and the water cooling part conduct heat at the same time, thereby increasing the heat dissipation efficiency without changing the conventional heat sink structure;

[0004] Although the above technical solution can increase the heat dissipation efficiency without changing the structure of the heat spreader, the cooling water of this technical solution has the best cooling effect when it is injected into the water cooling structure through the water inlet during use. When the cooling water flows in the water cooling structure to the water outlet, the cooling water has absorbed a lot of heat in the process of flowing in the water cooling structure, resulting in a decrease in the heat adsorption effect of the cooling water at the water outlet, resulting in a large temperature difference between the water inlet and the water outlet of the water cooling structure. Therefore, we need to propose a water-cooled heat spreader. Utility Model Content

[0005] The purpose of the utility model is to provide a water-cooled heat spreader, which divides the cooling water at the water inlet and outlet of the water cooling structure, thereby dividing the cooling water at the water inlet, keeping the cooling water passing through the water outlet at a low temperature to absorb the heat generated by the heat spreader, so that the water cooling structure absorbs heat from the heat spreader evenly, improves the heat dissipation effect of the heat spreader, avoids a large temperature difference between the water inlet and outlet of the water cooling structure, and solves the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a water-cooled heat sink, comprising:

[0007] A heat spreader body, wherein a water cooling assembly is disposed on the upper surface of the heat spreader body;

[0008] The water cooling assembly comprises a bottom frame, a sealing frame, a water cooling cover plate, a heat conducting member, a water inlet insulation baffle plate and a water outlet insulation baffle plate, wherein the sealing frame is integrally formed and arranged in the inner cavity of the bottom frame, and the heat conducting member, the water inlet insulation baffle plate and the water outlet insulation baffle plate are arranged in the water cooling cavity formed by the sealing frame and the water cooling cover plate;

[0009] A water inlet cold cavity is formed between the water inlet insulation baffle and the water cooling cover plate, a water inlet heat exchange cavity is formed between the water inlet insulation baffle and the main body of the heat spreader, a water outlet hot water cavity is formed between the water outlet insulation baffle and the water cooling cover plate, and a water outlet heat exchange cavity is formed between the water outlet insulation baffle and the main body of the heat spreader.

[0010] One end of the heat conducting member is provided with an upper circulation channel for connecting the inlet water cooling chamber with the outlet water heat exchange chamber, and one end of the heat conducting member is provided with a lower circulation channel for connecting the inlet water cooling chamber with the outlet water heat exchange chamber.

[0011] Preferably, a water inlet heat conduction channel and a water outlet heat conduction channel are provided on the lower surface of the heat conductive component, the water inlet heat conduction channel is arranged in a serpentine shape, both ends of the water inlet heat conduction channel are connected to the water inlet heat exchange chamber, the water outlet heat conduction channel is arranged in an E shape, and the water outlet heat conduction channel is connected to the water outlet heat exchange chamber.

[0012] Preferably, a first connecting hole for communicating with a lower circulation channel is opened on one side of the water inlet insulation baffle, and a second connecting hole for communicating with an upper circulation channel is opened on one side of the water outlet insulation baffle.

[0013] Preferably, a water inlet circulation heat conduction strip is fixedly connected to the lower surface of the water inlet insulation baffle, and a water outlet circulation heat conduction strip is fixedly connected to the lower surface of the water outlet insulation baffle.

[0014] Preferably, a water inlet pipe and a water outlet pipe are provided on one side of the bottom frame, the water inlet pipe is connected with the water inlet heat exchange chamber and the water inlet cold chamber, and the water outlet pipe is connected with the water outlet heat exchange chamber and the water outlet hot water chamber.

[0015] Preferably, the heat spreader body comprises a lower cover plate and an upper cover plate, the upper surface of the lower cover plate is provided with a lower bending portion along the edge, and the lower surface of the upper cover plate is provided with an upper bending portion that fits with the lower bending portion along the edge.

[0016] Preferably, a plurality of groups of lower positioning tubes are fixedly connected to the upper surface of the lower cover plate, and a plurality of groups of upper positioning blocks plugged with the lower positioning tubes are fixedly connected to the lower surface of the upper cover plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model mainly cooperates between the heat conducting member, the water inlet insulation baffle and the water outlet insulation baffle, and the cooling water is divided through the water inlet insulation baffle. Part of the cooling water dissipates the heat of the heat spreader body, and the other part enters the water outlet heat exchange cavity below the water outlet insulation baffle through the cold water inlet cavity and the lower circulation channel, and then exchanges heat with the heat spreader body at the water outlet end. At the same time, the water in the water inlet heat exchange cavity is discharged from the hot water outlet cavity through the upper circulation channel, thereby avoiding affecting the heat exchange at the water outlet end and improving the heat dissipation efficiency of the heat spreader body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the heat sink of the utility model;

[0021] Figure 3 This is a schematic diagram of the water cooling assembly structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the water inlet heat sink, the heat conduction element and the water outlet heat sink of the utility model.

[0023] In the figure: 100, heat spreader body; 101, lower cover; 102, lower bending part; 103, upper cover; 104, upper bending part; 105, lower positioning tube; 106, upper positioning block; 200, water cooling assembly; 201, bottom frame; 202, sealing frame; 203, water inlet pipe; 204, water outlet pipe; 205, heat conducting member; 2051, water inlet heat conducting channel; 2052, water outlet heat conducting channel; 2053, upper circulation channel; 2054, lower circulation channel; 206, water inlet insulation baffle; 2061, water inlet circulation heat conducting strip; 2062, first connecting hole; 207, water outlet insulation baffle; 2071, water outlet circulation heat conducting strip; 2072, second connecting hole; 208, water cooling cover. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution: a water-cooled heat sink, comprising:

[0026] A heat spreader body 100, wherein a water cooling assembly 200 is disposed on the upper surface of the heat spreader body 100;

[0027] The water cooling assembly 200 includes a bottom frame 201, a sealing frame 202, a water cooling cover plate 208, a heat conducting member 205, a water inlet insulation baffle 206 and a water outlet insulation baffle 207. The sealing frame 202 is integrally formed and arranged in the inner cavity of the bottom frame 201, and the heat conducting member 205, the water inlet insulation baffle 206 and the water outlet insulation baffle 207 are arranged in the water cooling cavity formed by the sealing frame 202 and the water cooling cover plate 208;

[0028] A water inlet cold cavity is formed between the water inlet insulation baffle 206 and the water cooling cover plate 208, a water inlet heat exchange cavity is formed between the water inlet insulation baffle 206 and the heat plate body 100, a water outlet hot water cavity is formed between the water outlet insulation baffle 207 and the water cooling cover plate 208, and a water outlet heat exchange cavity is formed between the water outlet insulation baffle 207 and the heat plate body 100.

[0029] An upper circulation channel 2053 is provided at one end of the heat conducting member 205 for communicating the inlet cooling chamber with the outlet heating chamber, and a lower circulation channel 2054 is provided at one end of the heat conducting member 205 for communicating the inlet cooling chamber with the outlet heating chamber.

[0030] A water inlet heat conducting channel 2051 and a water outlet heat conducting channel 2052 are provided on the lower surface of the heat conducting member 205. The water inlet heat conducting channel 2051 is arranged in a serpentine shape, and both ends of the water inlet heat conducting channel 2051 are connected to the water inlet heat exchange cavity. The water outlet heat conducting channel 2052 is arranged in an E shape, and the water outlet heat conducting channel 2052 is connected to the water outlet heat exchange cavity. The water inlet heat conducting channel 2051 and the water outlet heat conducting channel 2052 increase the residence time of cooling water, thereby improving the heat exchange efficiency.

[0031] A first connecting hole 2062 for connecting to the lower circulation channel 2054 is opened on one side of the water inlet insulation baffle 206, and a second connecting hole 2072 for connecting to the upper circulation channel 2053 is opened on one side of the water outlet insulation baffle 207. The first connecting hole 2062 and the second connecting hole 2072 facilitate alternate circulation of the unheated cooling water and the heat-exchanged cooling water, so that the unheated cooling water exchanges heat with the heat spreader body 100, avoiding the influence of the heat-exchanged cooling water on the unheated cooling water.

[0032] The lower surface of the water inlet insulation baffle 206 is fixedly connected with a water inlet circulation heat conductive strip 2061, and the lower surface of the water outlet insulation baffle 207 is fixedly connected with a water outlet circulation heat conductive strip 2071. The water inlet circulation heat conductive strip 2061 and the water outlet circulation heat conductive strip 2071 extend the time that the cooling water stays inside the water cooling component 200, thereby improving the heat exchange efficiency.

[0033] A water inlet pipe 203 and a water outlet pipe 204 are provided on one side of the bottom frame 201. The water inlet pipe 203 is connected to the water inlet heat exchange chamber and the water inlet cold chamber, and the water outlet pipe 204 is connected to the water outlet heat exchange chamber and the water outlet hot water chamber. The water inlet pipe 203 and the water outlet pipe 204 facilitate the diversion and confluence of the cooling water, thereby facilitating the heat dissipation of the heat spreader body 100.

[0034] The heat spreader body 100 includes a lower cover plate 101 and an upper cover plate 103. A lower bending portion 102 is arranged along the edge of the upper surface of the lower cover plate 101, and an upper bending portion 104 that fits with the lower bending portion 102 is arranged along the edge of the lower surface of the upper cover plate 103. The upper bending portion 104 and the lower bending portion 102 facilitate rapid assembly of the upper cover plate 103 and the lower cover plate 101, thereby improving assembly efficiency.

[0035] The upper surface of the lower cover plate 101 is fixedly connected with multiple sets of lower positioning tubes 105, and the lower surface of the upper cover plate 103 is fixedly connected with multiple sets of upper positioning blocks 106 plugged into the lower positioning tubes 105. The upper positioning blocks 106 and the lower positioning tubes 105 improve the stability of the upper cover plate 103 and the lower cover plate 101 after docking.

[0036] When in use, cooling water is introduced into the water cooling component 200 through the water inlet pipe 203, and the cooling water is divided into two parts through the water inlet insulation baffle 206, one part enters the water inlet heat exchange chamber, and the other part enters the cold water inlet chamber. The cooling water in the water inlet heat exchange chamber passes through the water inlet circulation heat conduction strip 2061 to increase the cooling water residence time and then enters the water inlet heat conduction channel 2051. The cooling water residence time in the water inlet heat exchange chamber is extended through the water inlet heat exchange channel, thereby improving the heat exchange efficiency of the water inlet end of the heat plate. At the same time, the cooling water after heat exchange passes through the first connecting hole 2062 and the upper The circulation channel 2053 enters the hot water outlet cavity on the water outlet insulation baffle 207, and then flows out through the water outlet pipe 204. Similarly, the cooling water in the cold water cavity enters the water outlet heat exchange cavity through the second connecting hole 2072 and the lower circulation channel 2054. The time in the water outlet heat exchange cavity is increased by the water outlet circulation heat conductive strip 2071, and then flows into the water outlet heat exchange channel to exchange heat with the water outlet end of the heat spreader body 100, and then flows out through the water outlet pipe 204, thereby improving the heat dissipation efficiency of the heat spreader body 100, avoiding excessive temperature difference between the inlet and outlet water ends, and improving the uniformity of heat dissipation.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-cooled heat sink, characterized in that: include: A heat spreader body (100), wherein a water cooling assembly (200) is disposed on an upper surface of the heat spreader body (100); The water cooling component (200) comprises a bottom frame (201), a sealing frame (202), a water cooling cover plate (208), a heat conducting member (205), a water inlet insulation baffle (206) and a water outlet insulation baffle (207); the sealing frame (202) is integrally formed and arranged in the inner cavity of the bottom frame (201); the heat conducting member (205), the water inlet insulation baffle (206) and the water outlet insulation baffle (207) are arranged in the water cooling cavity formed by the sealing frame (202) and the water cooling cover plate (208); A water inlet cold cavity is formed between the water inlet insulation baffle (206) and the water cooling cover plate (208), a water inlet heat exchange cavity is formed between the water inlet insulation baffle (206) and the heat spreader body (100), a water outlet hot water cavity is formed between the water outlet insulation baffle (207) and the water cooling cover plate (208), and a water outlet heat exchange cavity is formed between the water outlet insulation baffle (207) and the heat spreader body (100). One end of the heat conducting member (205) is provided with an upper circulation channel (2053) for connecting the water inlet cooling chamber with the water outlet heating chamber, and one end of the heat conducting member (205) is provided with a lower circulation channel (2054) for connecting the water inlet cooling chamber with the water outlet heat exchange chamber.

2. The water-cooled heat sink according to claim 1, characterized in that: The lower surface of the heat-conducting member (205) is provided with a water inlet heat-conducting channel (2051) and a water outlet heat-conducting channel (2052); the water inlet heat-conducting channel (2051) is arranged in a serpentine shape, and both ends of the water inlet heat-conducting channel (2051) are connected to the water inlet heat exchange chamber; the water outlet heat-conducting channel (2052) is arranged in an E shape, and the water outlet heat-conducting channel (2052) is connected to the water outlet heat exchange chamber.

3. The water-cooled heat sink according to claim 2, characterized in that: A first connection hole (2062) for communicating with the lower circulation channel (2054) is provided on one side of the water inlet insulation baffle (206), and a second connection hole (2072) for communicating with the upper circulation channel (2053) is provided on one side of the water outlet insulation baffle (207).

4. The water-cooled heat sink according to claim 3, characterized in that: The lower surface of the water inlet insulation baffle (206) is fixedly connected to a water inlet circulation heat conduction strip (2061), and the lower surface of the water outlet insulation baffle (207) is fixedly connected to a water outlet circulation heat conduction strip (2071).

5. The water-cooled heat sink according to claim 4, characterized in that: A water inlet pipe (203) and a water outlet pipe (204) are provided on one side of the bottom frame (201); the water inlet pipe (203) is connected to the water inlet heat exchange chamber and the water inlet cold chamber; and the water outlet pipe (204) is connected to the water outlet heat exchange chamber and the water outlet hot water chamber.

6. The water-cooled heat sink according to claim 5, characterized in that: The heat spreader body (100) comprises a lower cover plate (101) and an upper cover plate (103); a lower bending portion (102) is arranged along the edge of the upper surface of the lower cover plate (101); and an upper bending portion (104) that fits with the lower bending portion (102) is arranged along the edge of the lower surface of the upper cover plate (103).

7. The water-cooled heat sink according to claim 6, characterized in that: The upper surface of the lower cover plate (101) is fixedly connected to a plurality of groups of lower positioning tubes (105), and the lower surface of the upper cover plate (103) is fixedly connected to a plurality of groups of upper positioning blocks (106) plugged into the lower positioning tubes (105).

Images