Water-cooled head close structure

Abstract

A water-cooling head sealing structure includes a first shell and a second shell. The first shell has a first plate, a plurality of fins arranged on the first plate, a first periphery around the first plate, and a first side edge formed laterally outward from the first periphery. The second shell has a second plate arranged on the first plate to form a cavity between the first plate and the second plate, the fins being arranged in the cavity. The second plate has a second periphery around the cavity and a second side edge arranged in a stepped configuration with the second periphery. A joint structure formed by resistance welding is arranged between the first periphery and the second periphery. A fusion structure formed by laser welding is arranged between the first side edge and the second side edge. Thus, the welding area can be reduced, and the sealing degree can be increased to prevent seam thinning and improve product yield.

Description

Technical Field

[0001] This utility model relates to a water cooling heat dissipation method, and more particularly to a tight-fitting structure for welding water cooling heads. Background Technology

[0002] The existing water cooling head is mainly composed of two plates that are closed to form a hollow cavity, and a plurality of fins are provided inside. The working fluid, such as coolant, can pass through the gaps between the fins, thereby carrying away the heat absorbed by the water cooling head, so as to provide cooling and heat dissipation for heat sources such as electronic components.

[0003] Since the water cooling head is often sealed between the two plates by welding, and the welding method often uses a third material as solder, the welding operation needs to be continuous and uninterrupted to avoid the possibility of gaps at the joint that may not be completely sealed, thus increasing the defect rate. Utility Model Content

[0004] The main objective of this invention is to provide a water cooling head sealing structure, which employs different welding methods at the joint in both the circumferential and lateral directions. This reduces the required welding area and increases the sealing tightness to prevent gaps, thereby improving product yield.

[0005] To achieve the above objectives, this utility model provides a water-cooling head sealing structure, including a first shell and a second shell; the first shell has a first plate portion and a plurality of fins disposed on the first plate portion, and the first plate portion has a first periphery and a first side edge formed on the side outward of the first periphery; the second shell has a second plate portion and is stacked on the first plate portion for close contact, so that a cavity is formed between the second plate portion and the first plate portion, each fin is located in the cavity, and the second plate portion has a second periphery surrounding the cavity and a second side edge arranged in a stepped manner with the second periphery; wherein, a joint structure formed by resistance welding is formed between the first periphery and the second periphery, and a fusion structure formed by laser welding is formed between the first side edge and the second side edge.

[0006] In some embodiments, the inner surface of the second plate portion of the second housing is recessed to form the cavity.

[0007] In some embodiments, the second housing is provided with a water inlet connector and a water outlet connector and is connected to the cavity.

[0008] In some embodiments, the second plate portion is provided with a water inlet and a water outlet, both of which are connected to the cavity, and the water inlet connector is connected to the water inlet and the water outlet connector is connected to the water outlet.

[0009] In some embodiments, a first groove is recessed on the outer side of the second plate portion and corresponds to the water inlet, while a second groove is recessed on the inner surface of the second plate portion and corresponds to the water outlet. The water inlet connector is fixed on the first groove, and the water outlet connector is fixed on the second groove.

[0010] In some embodiments, the water inlet connector has an annular water inlet connector seat fixed to the first groove, and the water outlet connector also has an annular water outlet connector seat fixed to the second groove.

[0011] In some embodiments, the water inlet connector seat and the first groove have the joint structure remaining from resistance welding.

[0012] In some embodiments, the water outlet connector seat and the second groove have the joint structure remaining from resistance welding.

[0013] In some embodiments, an expansion flow groove is recessed on the inner surface of the second plate portion, and the water inlet is located within the expansion flow groove.

[0014] In some embodiments, the expansion flow channel is elongated and extends along the arrangement direction of each of the fins. Attached Figure Description

[0015] Figure 1 This is an exploded perspective view of the present invention.

[0016] Figure 2 This is a three-dimensional composite diagram of the present invention.

[0017] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0018] Explanation of markings in the diagram:

[0019] 1: First shell;

[0020] 10: First board section;

[0021] 10a: First perimeter;

[0022] 10b: First lateral edge;

[0023] 11: Fins;

[0024] 2: Second shell;

[0025] 20: Second board section;

[0026] 20a: Second perimeter;

[0027] 20b: Second lateral edge;

[0028] 200: Protruding top surface;

[0029] 200a: First groove;

[0030] 200b: Second groove;

[0031] 201:Inner surface;

[0032] 201a: Inlet;

[0033] 201b: Outlet;

[0034] 201c: Expansion flow channel;

[0035] 21: Water inlet connector;

[0036] 210: Water inlet interface;

[0037] 211: Water inlet connector seat;

[0038] 22: Water outlet connector;

[0039] 220: Water outlet;

[0040] 221: Water outlet connector seat;

[0041] 3: Joint structure;

[0042] 4: Fusion structure;

[0043] C: cavity. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0045] Please see Figure 1 and Figure 2 These are exploded perspective views and assembled perspective views of the present invention. The present invention provides a water-cooling head sealing structure, comprising a first housing 1 and a second housing 2; wherein:

[0046] The first housing 1 can be made of a material with good thermal conductivity, such as copper or aluminum. The first housing 1 has a first plate portion 10 and a plurality of fins 11 disposed on one surface (such as the inner surface) of the first plate portion 10. The fins 11 are arranged at intervals. The other surface (such as the outer surface) of the first plate portion 10 is used to attach a heat source (not shown) for heat dissipation or cooling.

[0047] As mentioned above, the second housing 2 can also be made of a material with good thermal conductivity, such as copper or aluminum. The second housing 2 has a second plate portion 20 that is stacked on top of the first plate portion 10 of the first housing 1 in close contact, so that a cavity C is formed between the second plate portion 20 and the first plate portion 10, and the fins 11 on the first plate portion 10 are located within the cavity C. Specifically, in the embodiment of this utility model, the second plate portion 20 of the second housing 2 is recessed on one surface (such as the inner surface) towards another surface (such as the outer surface), and a protruding top surface 200 is formed on the other surface of the second plate portion 20. A recessed inner surface 201 is formed within the second plate portion 20, and the inner surface 201 abuts against the upper edge of each fin 11.

[0048] Please refer to the following: Figure 2 and Figure 3 As shown, further, the second housing 2 may be provided with a water inlet connector 21 and a water outlet connector 22, and the second plate portion 20 may be provided with a water inlet 201a and a water outlet 201b. Both the water inlet 201a and the water outlet 201b are connected to the aforementioned cavity C. The water inlet connector 21 is connected to the water inlet 201a, and the water outlet connector 22 is connected to the water outlet 201b, so that the water inlet connector 21 can connect to an external pipeline and supply working fluids such as coolant. A recess may be provided on the inner surface 201 of the second plate portion 20. An expansion flow channel 201c is provided. The expansion flow channel 201c can be elongated, specifically extending along the arrangement direction of each of the fins 11. The inlet 201a is located in the expansion flow channel 201c. When the working fluid enters the cavity C through the inlet 201a, it flows and diffuses above each fin 11, thereby absorbing the heat of the first housing 1. Then, it is sent out through the outlet 201b to the external pipeline connected to the outlet connector 22, so as to transport the working fluid to components such as water cooling radiators for cooling and recycling.

[0049] Please refer to the following as well. Figures 1 to 3As shown, the present invention mainly has a first periphery 10a around the first plate portion 10 and a first side edge 10b formed on the side outward of the first periphery 10a, while the second plate portion 20 is provided with a second periphery 20a surrounding the cavity C and a second side edge 20b arranged in a stepped manner with the second periphery 20a. Furthermore, when the first housing 1 is stacked on the second plate 20 of the second housing 2 in close contact with the first plate portion 10, the first periphery 10a of the first plate portion 10 and the second periphery 20a of the second plate portion 20 are stacked together and welded together by resistance welding (also known as spot welding or butt welding), so as to form a joint structure 3 left by resistance welding between the first periphery 10a and the second periphery 20a; while the first side edge 10b of the first plate portion 10 is opposite to the second side edge 20b of the second plate portion 20 and is welded together by laser welding, so as to form a fusion structure 4 formed by laser welding between the first side edge 10b and the second side edge 20b. Thus, by using resistance welding and laser welding in the circumferential and lateral directions at the joint, the required welding area can be reduced, and the tightness can be increased to prevent the formation of seams, thereby improving the product yield.

[0050] Therefore, the water-cooling head sealing structure of this utility model can be obtained through the above-described structural composition.

[0051] Accordingly, Figure 3 As shown, the water inlet connector 21 has a water inlet interface 210, and the water outlet connector 22 has a water outlet interface 220. The water inlet connector 21 has an annular water inlet connector seat 211, and the water outlet connector 22 also has an annular water outlet connector seat 221. Meanwhile, in the embodiment of this utility model, the second housing 2 has a first groove 200a recessed on the protruding top surface 200 of the second plate portion 20, corresponding to the water inlet 201a, and a second groove 200b recessed on the inner surface 201, corresponding to the water outlet 201b. The water inlet connector 21 is welded to the first groove 200a with its water inlet connector seat 211, so that the water inlet interface 210 of the water inlet connector 21 communicates with the water inlet 201a. The water outlet connector 22 is welded to the second groove 200b with its water outlet connector seat 221, so that the water outlet interface 220 of the water outlet connector 22 connects with the water outlet 201b. The aforementioned welding is resistance welding, so that the joint structure 3 remaining from the resistance welding is also present between the water inlet connector seat 211 and the first groove 200a, or between the water outlet connector seat 221 and the second groove 200b.

[0052] Therefore, by using the water-cooling head sealing structure of this utility model, resistance welding and laser welding are respectively adopted in the circumferential and lateral directions at the joint between the first shell 1 and the second shell 2. On the one hand, the required welding area can be reduced, and on the other hand, the sealing can be increased to prevent the formation of gaps, thereby improving the product yield.

[0053] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model, or reasonable combinations of features and solutions from various embodiments, are all within the protection scope of the present utility model.

Claims

1. A water-cooling head sealing structure characterized by comprising: include: A first housing having a first plate portion and a plurality of fins disposed on the first plate portion, wherein the first plate portion has a first periphery and a first side edge formed outward from the first periphery; and A second housing has a second plate portion and is stacked on the first plate portion in close contact, so that a cavity is formed between the second plate portion and the first plate portion, each of the fins is located in the cavity, and the second plate portion is provided with a second periphery surrounding the cavity and a second side edge arranged in a stepped manner with the second periphery. The first periphery and the second periphery have a joint structure formed by resistance welding, while the first side edge and the second side edge have a fusion structure formed by laser welding.

2. The water-cooled head sealing structure as described in claim 1, characterized in that, The cavity is formed by the inner surface of the second plate portion of the second housing being recessed.

3. The water-cooled head sealing structure as described in claim 1, characterized in that, The second housing is provided with a water inlet connector and a water outlet connector, which are connected to the cavity.

4. The water-cooled head sealing structure as described in claim 3, characterized in that, The second plate has a water inlet and a water outlet, both of which are connected to the cavity. The water inlet connector is connected to the water inlet and the water outlet connector is connected to the water outlet.

5. The water-cooled head sealing structure as described in claim 4, characterized in that, The outer surface of the second plate is recessed with a first groove corresponding to the water inlet, while the inner surface of the second plate is recessed with a second groove corresponding to the water outlet. The water inlet connector is fixed to the first groove, and the water outlet connector is fixed to the second groove.

6. The water-cooled head sealing structure as described in claim 5, characterized in that, The water inlet connector has an annular water inlet connector seat fixed to the first groove, and the water outlet connector also has an annular water outlet connector seat fixed to the second groove.

7. The water-cooled head sealing structure as described in claim 6, characterized in that, The water inlet connector seat and the first groove have the joint structure left by resistance welding.

8. The water-cooled head sealing structure as described in claim 6, characterized in that, The water outlet connector seat and the second groove have the joint structure remaining from resistance welding.

9. The water-cooled head sealing structure as described in any one of claims 4 to 8, characterized in that, An expansion flow groove is recessed on the inner surface of the second plate, and the water inlet is located inside the expansion flow groove.

10. The water-cooled head sealing structure as described in claim 9, characterized in that, The expansion flow channel is elongated and extends along the arrangement direction of each fin.

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