Vapor chamber and processing method thereof

Abstract

The invention relates to the technical field of vapor chambers, and particularly discloses a vapor chamber and a processing method thereof.The vapor chamber comprises a plate body with an internal cavity, and a first water injection opening communicated with the internal cavity is formed in one end of the plate body, the vapor chamber is characterized by further comprising a removable structure, and the removable structure is arranged at one end of the plate body; a water injection channel and a gas storage chamber communicated with the water injection channel are arranged in the removable structure, one end of the water injection channel is communicated with the outside, and the other end of the water injection channel is communicated with the first water injection port; and the gas storage capacity of the gas storage chamber is equal to or greater than the gas displacement discharged after the internal cavity is filled with water. A water injection pipe and an air exhaust structure are omitted, the overall length is reduced, a removable structure is added, water injection and air exhaust are conducted at the same time through the removable structure, the production process is simplified, the liquid injection stability is improved, and meanwhile pipe insertion and the UV curing technology can be omitted.

Description

Technical Field

[0001] The present invention relates to the technical field of vapor chambers, and in particular to a vapor chamber and a processing method thereof. Background Art

[0002] In the prior art, a common method of connecting a water injection structure or an air extraction structure is to inject a pre-designed water injection port on the heat spreader through injection molding, and then connect a water injection pipe to inject the coolant into the heat spreader.

[0003] When water is injected into the heat spreader sideways, the water injection nozzle needs to be sealed with the water injection port of the heat spreader to prevent water leakage, which may cause the water injection volume inside the heat spreader to fail to meet the set requirement. When the water injection nozzle and the water injection port of the heat spreader form a seal, the air pressure inside the heat spreader cannot be discharged during water injection, resulting in difficulty in water injection and affecting the water injection efficiency. Summary of the invention

[0004] In view of this, the present invention proposes a heat spreader and a processing method thereof, aiming to solve the above-mentioned technical problems.

[0005] The present invention provides a vapor chamber, comprising a plate body having an internal cavity, a first water inlet communicating with the internal cavity being provided at one end of the plate body, and the vapor chamber further comprising: A removable structure, wherein the removable structure is disposed at one end of the plate body; The removable structure is provided with a water injection channel and an air storage chamber connected to the water injection channel, one end of the water injection channel is connected to the outside, and the other end of the water injection channel is connected to the first water injection port; and the air storage capacity of the air storage chamber is equal to or greater than the exhaust gas discharged after the internal cavity is injected with water.

[0006] In some embodiments of the present application, the inner diameter of the air storage chamber is larger than the inner diameter of the water injection channel.

[0007] In some embodiments of the present application, the water injection channel includes: A passage, one end of which is connected to the air storage chamber; A two-stage boosting channel, one end of which is connected to the air storage chamber.

[0008] In some embodiments of the present application, the removable structure includes a first removable portion and a second removable portion that are sealed and connected to each other, and the water injection channel and the air storage chamber are formed between the first removable portion and the second removable portion.

[0009] In some embodiments of the present application, the water injection channel includes a first water injection groove provided in the first removable portion and a second water injection groove provided in the second removable portion.

[0010] In some embodiments of the present application, in the water injection direction of the water injection channel, the length of the first water injection groove is longer than the length of the second water injection groove and the first water injection groove is connected to the first water injection port.

[0011] In some embodiments of the present application, the gas storage chamber includes a first gas storage groove disposed in the first removable portion and a second gas storage groove disposed in the second removable portion.

[0012] In some embodiments of the present application, the air storage chamber is any one of an elliptical cavity and a diamond-shaped cavity.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The water injection pipe and the air extraction structure are eliminated, the overall length is reduced, and a removable structure is added. Water is injected and exhaust is performed simultaneously through the removable structure, which simplifies the production process and improves the injection stability. At the same time, the intubation and UV curing processes can be eliminated.

[0014] During use, liquid can be injected into the internal cavity of the heat spreader through the water injection channel from the second water injection port through the water injection device. During the liquid injection process, the gas in the internal cavity is squeezed to escape outward and is stored in the gas storage chamber. Specifically, during the water injection process, the second water injection port is sealed and connected to the water injection needle or the water injection device, so that exhaust is achieved during the water injection process and the gas is stored in the gas storage chamber.

[0015] It is understandable that due to the design of the water injection channel and the air storage chamber, the water injection and exhaust processes can be carried out simultaneously, without the need for intubation and UV curing processes, which simplifies the process flow and greatly improves production efficiency. In addition, the design of the removable structure allows it to be easily cut off after the water injection and exhaust operations are completed, thereby eliminating the water injection pipe and the exhaust structure and reducing the overall length.

[0016] On the other hand, the present application also provides a method for processing a vapor chamber, comprising: S1, fixing the plate body, and sealingly connecting a water injection nozzle to the water inlet end of the water injection channel of the removable structure, and the water injection nozzle is connected to a water source; S2, the water in S1 flows through the removable air storage chamber and enters the first water injection port of the plate body from the water outlet end of the water injection channel, and finally injects a set amount of water into the internal cavity of the plate body; during the water injection process, the gas in the internal cavity is discharged into the air storage chamber through the first water injection port and the water injection channel, and the gas storage volume of the air storage chamber is equal to or greater than the exhaust volume discharged after the internal cavity is injected with water, that is, the water injection is completed; S3. Close the first water inlet in S2 to obtain a heat spreader.

[0017] In some embodiments of the present application, the processing method further includes: S4, removing the removable structure in S3.

[0018] It can be understood that the processing method of a vapor chamber provided in this embodiment has the same beneficial effects as the vapor chamber described above, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic diagram of the three-dimensional structure of a heat spreader provided in an embodiment of the present invention; Figure 2 A front view of a vapor chamber provided in an embodiment of the present invention; Figure 3 The embodiment of the present invention provides Figure 2 Cross-sectional view along AA direction; Figure 4 The embodiment of the present invention provides Figure 3 A magnified view of the structure of the middle air storage chamber and the water injection channel; Figure 5 A rear view of a vapor chamber provided in an embodiment of the present invention; Figure 6 An exploded view of a heat sink provided in an embodiment of the present invention.

[0020] In the figure: 1. plate body; 11. internal cavity; 12. first water injection port; 2. removable structure; 21. first channel; 22. second pressurization channel; 23. first removable part; 231. first water injection groove; 232. first air storage groove; 24. second removable part; 241. second water injection groove; 242. second air storage groove; 25. air storage chamber; 3. heat sink. DETAILED DESCRIPTION

[0021] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] See also Figure 1 The present embodiment provides a vapor chamber, comprising a plate body 1 having an internal cavity 11, a first water inlet 12 communicating with the internal cavity 11 is provided at one end of the plate body 1, and the vapor chamber further comprises: A removable structure 2, which is disposed at one end of the plate body 1; A water injection channel and an air storage chamber 25 connected to the water injection channel are provided in the removable structure 2, one end of the water injection channel is connected to the outside, and the other end of the water injection channel is connected to the first water injection port 12; and the air storage capacity of the air storage chamber 25 is equal to or greater than the exhaust gas discharged after the internal cavity 11 is injected with water.

[0023] Specifically, the removable structure 2 is removed by shearing or punching.

[0024] It can be understood that the traditional water injection pipe design is eliminated in this embodiment, the structure of the heat spreader is simplified, and the number of components and potential failure points are reduced. Through the removable structure 2, exhaust and water injection operations can be conveniently performed, thereby improving the maintenance efficiency of the heat spreader. During the water injection process, the internal gas can be effectively discharged and stored in the gas storage chamber 25 of the removable structure 2, thereby avoiding gas residue inside the heat spreader, thereby improving the thermal conduction efficiency and reliability of the heat spreader. After the water injection is completed, by sealing the first water injection port 12 and cutting or stamping the removable structure 2, the sealing of the heat spreader can be ensured to prevent liquid leakage and intrusion of external contaminants. Simplifying the structure and reducing the number of components helps to reduce production costs while improving the market competitiveness of the product.

[0025] See also Figure 3-4 In a specific embodiment of the present application, the inner diameter of the air storage chamber 25 is larger than the inner diameter of the water injection channel.

[0026] Specifically, the inner diameter of the air storage chamber 25 in this embodiment is larger than the inner diameter of the water injection channel, ensuring that there is enough space in the air storage chamber 25 to store the exhaust gas discharged after the internal cavity 11 is filled with water.

[0027] See also Figure 2 and Figure 5 In a specific embodiment of the present application, the water injection channel includes: A section of the channel 21, one end of which is connected to the air storage chamber 25; The second-stage boosting channel 22 has one end connected to the air storage chamber 25 .

[0028] Specifically, the first channel 21 in this embodiment is used to be sealed and connected to the water injection equipment, and the water injection equipment injects water into the internal cavity 11 of the plate body 1 through the first channel 21, the air storage chamber 25, and the second pressure-boosting channel 22.

[0029] Specifically, the two ends of the two-stage boost channel 22 in this embodiment are respectively connected to the air storage chamber 25 and the first water injection port 12, wherein the inner diameter of the end of the two-stage boost channel 22 connected to the air storage chamber 25 is larger than the inner diameter of the end connected to the first water injection port 12, thereby forming a tapered section in the middle section of the two-stage boost channel 22.

[0030] It can be understood that in this embodiment, the inner diameter of the two-stage boosting channel 22 in the water injection direction changes from large to small, and there is also a tapered section in the middle, so that when the water flows through the two-stage boosting channel 22 during the water injection process, the water flow velocity increases due to the gradual decrease in the inner diameter, thereby boosting the water flow. The boosting effect not only improves the water injection efficiency, but also enhances the fluidity of the water flow.

[0031] See also Figure 6 In a specific embodiment of the present application, the removable structure 2 includes a first removable portion 23 and a second removable portion 24 which are sealed and connected to each other, and a water injection channel and an air storage chamber 25 are formed between the first removable portion 23 and the second removable portion 24.

[0032] It can be understood that in this embodiment, a continuous water injection channel can be formed between the first removable portion 23 and the second removable portion 24, and the water injection channel allows liquid to pass through and be evenly distributed to the area requiring water injection, thereby improving water injection efficiency and uniformity.

[0033] It is understandable that in this embodiment, an air storage chamber 25 is also formed between the first removable portion 23 and the second removable portion 24. Since the air storage chamber 25 and the water injection channel are connected, during the water injection process, the escaped gas in the internal cavity 11 of the plate body 1 can be discharged into the air storage chamber 25 through the water injection channel, providing storage space for the escaped gas after being discharged through the first water injection port 12. In addition, since a section of the channel 21 and the water injection device are sealed and connected during the water injection process, the provision of the air storage chamber 25 avoids the problems of difficulty in water injection and reduced water injection efficiency caused by the inability to discharge the air pressure inside the heat spreader.

[0034] See also Figure 3-4 In a specific embodiment of the present application, the water injection channel includes a first water injection groove 231 provided in the first removable portion 23 and a second water injection groove 241 provided in the second removable portion 24 .

[0035] It can be understood that the first water injection groove 231 and the second water injection groove 241 in this embodiment are preferably arc-shaped grooves, and this embodiment does not specifically limit this. Any groove shape that can realize water injection operation or connect to water injection equipment can be set.

[0036] It can be understood that in this embodiment, by providing the first water injection groove 231 on the first cover plate and the second water injection groove 241 on the second cover plate, a continuous water injection channel can be formed, and the water injection channel allows liquid to pass through and be evenly distributed to the area where water injection is required, thereby improving water injection efficiency and uniformity. In addition, since the water injection grooves are provided separately, they can be customized for different removable part materials and shapes to meet different application requirements.

[0037] In a specific embodiment of the present application, in the water injection direction of the water injection channel, the length of the first water injection groove 231 is longer than the length of the second water injection groove 241 and the first water injection groove 231 is connected to the first water injection port 12 .

[0038] It can be understood that in this embodiment, the first water injection groove 231 and the second water injection groove 241 are combined to form a water injection channel, and the first water injection port 12 is connected through the first water injection groove 231 to enable the water injection equipment to inject liquid into the internal cavity 11 of the heat spreader, while the second water injection groove 241 is not connected to the first water injection port 12. Therefore, during the water injection process through the water injection equipment, the escaping gas in the internal cavity 11 can be discharged into the air storage chamber 25 through the second groove, providing an exhaust channel for the escaping gas after it is discharged through the first water injection port 12, and discharged into the air storage chamber 25. Since the second water injection port is sealed and connected to the water injection equipment during the water injection process, the escaping gas is stored in the air storage chamber 25.

[0039] See also Figure 6 In a specific embodiment of the present application, the gas storage chamber 25 includes a first gas storage groove 232 disposed in the first removable portion 23 and a second gas storage groove 242 disposed in the second removable portion 24 .

[0040] In a specific embodiment of the present application, the air storage chamber 25 is any one of an elliptical cavity and a diamond cavity.

[0041] It can be understood that in this embodiment, the first gas storage groove 232 and the second gas storage groove 242 are combined to form an air storage chamber 25. When water is injected into the internal cavity 11 of the plate body 1 through the water injection channel, the water flows through the first channel 21, the air storage chamber 25 and the second-stage pressurization channel 22 in sequence. When the water flows through the air storage chamber 25, since the air storage chamber 25 is an elliptical cavity or a diamond cavity, its internal diameter first gradually increases and then gradually decreases. When the water flows into the air storage chamber 25, as the cavity diameter increases, the water flow speed will be relatively slowed down, resulting in a decrease in local pressure and the formation of a low-pressure area. Subsequently, when the water flows through the part where the cavity diameter gradually decreases, the water flow speed increases, resulting in a local high-pressure area. Therefore, the elliptical or diamond-shaped cavity design will produce a pressure change effect of first reducing pressure and then increasing pressure when the water flows through, which can optimize the dynamic characteristics of the water flow and improve the efficiency of water injection.

[0042] In a specific embodiment of the present application, a heat sink 3 is disposed in the internal cavity 11. The heat sink 3 is, for example, a copper mesh, and of course, the heat sink 3 can also be replaced by a liquid wicking chip.

[0043] Specifically, the heat sink 3 in this embodiment can effectively form heat exchange with the internal water, thereby improving the stability and service life of the equipment.

[0044] On the other hand, the present application also provides a method for processing a vapor chamber, comprising: S1, fixing the plate body 1, and sealingly connecting the water injection nozzle to the water inlet end of the water injection channel of the removable structure 2, and connecting the water injection nozzle to a water source; The water in S2 and S1 flows through the air storage chamber 25 of the removable structure 2 and enters the first water injection port 12 of the plate body 1 from the water outlet end of the water injection channel, and finally injects a set amount of water into the internal cavity 11 of the plate body 1; during the water injection process, the gas in the internal cavity 11 is discharged into the air storage chamber 25 through the first water injection port 12 and the water injection channel, and the gas storage capacity of the air storage chamber 25 is equal to or greater than the exhaust gas volume discharged after the internal cavity 11 is injected with water, that is, the water injection is completed; S3. Close the first water inlet 12 in S2 to obtain a heat spreader.

[0045] S4. Remove the removable structure 2 in S3.

[0046] Specifically, in the above S4, the cross section of the reserved end after the removal of the removable structure 2 is removed is flush with the corresponding side of the plate body 1 to avoid the protrusion of the removable structure 2 affecting the installation and fixation of the vapor chamber.

[0047] In some embodiments of the present application, before the above S1, it also includes: S0, the board 1 is formed, and the specific processing steps are as follows: A first cover plate and a first removable part 23 having a first internal sub-cavity, and a second cover plate and a second removable part 24 having a second internal sub-cavity are punched out through a stamping process. When the edge of the first cover plate and the edge of the second cover plate, and the edge of the first removable part 23 and the edge of the second removable part 24 are sealed and connected, the first internal sub-cavity and the second internal sub-cavity form an internal cavity 11, and a water injection channel and an air storage chamber 25 are formed between the first removable part 23 and the second removable part 24, and the first water injection port 12 can be set on the first cover plate or the second cover plate.

[0048] That is to say, the first cover plate and the first removable portion 23 are formed at one time by stamping, and the first internal sub-cavity, the first air storage groove 232 and the first water injection groove 231 are formed at one time, which can improve the processing efficiency. At the same time, it can also avoid secondary machining and cause metal waste chips caused by metal processing to remain inside the plate body (such as metal waste chips caused by opening exhaust holes, etc.).

[0049] Similarly, the second cover plate and the second removable portion 24 also have the above advantages, which will not be elaborated here.

[0050] Secondly, through stamping, the consistency of product quality can be ensured to ensure the sealing and product quality reliability after mutual assembly.

[0051] It can be understood that the processing method of a vapor chamber in this embodiment has the same beneficial effects as the vapor chamber described above, and will not be described in detail here.

[0052] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0053] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0054] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0055] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A heat spreader, comprising a plate body having an internal cavity, wherein a first water inlet communicating with the internal cavity is provided at one end of the plate body, wherein: The heat sink also includes: A removable structure, wherein the removable structure is disposed at one end of the plate body; The removable structure is provided with a water injection channel and an air storage chamber connected to the water injection channel, one end of the water injection channel is connected to the outside, and the other end of the water injection channel is connected to the first water injection port; and the air storage capacity of the air storage chamber is equal to or greater than the exhaust gas discharged after the internal cavity is injected with water.

2. A vapor chamber according to claim 1, characterized in that: The inner diameter of the air storage chamber is greater than the inner diameter of the water injection channel.

3. A vapor chamber according to claim 1, characterized in that: The water injection channel comprises: A passage, one end of which is connected to the air storage chamber; A two-stage pressurization channel, one end of which is connected to the air storage chamber.

4. A vapor chamber according to claim 1, 2 or 3, characterized in that: The removable structure includes a first removable portion and a second removable portion which are sealed and connected to each other, and the water injection channel and the air storage chamber are formed between the first removable portion and the second removable portion.

5. A vapor chamber according to claim 4, characterized in that: The water injection channel includes a first water injection groove provided at the first removable portion and a second water injection groove provided at the second removable portion.

6. A vapor chamber according to claim 5, characterized in that: In the water injection direction of the water injection channel, the length of the first water injection groove is longer than the length of the second water injection groove and the first water injection groove is communicated with the first water injection port.

7. A vapor chamber according to claim 4, characterized in that: The air storage chamber includes a first air storage groove disposed in the first removable portion and a second air storage groove disposed in the second removable portion.

8. The vapor chamber according to claim 1, characterized in that: The air storage chamber is any one of an elliptical cavity and a rhombus cavity.

9. A method for processing a vapor chamber as claimed in any one of claims 1 to 8, characterized in that: The processing method comprises the following steps: S1, fixing the plate body, and sealingly connecting a water injection nozzle to the water inlet end of the water injection channel of the removable structure, and the water injection nozzle is connected to a water source; S2, the water in S1 flows through the removable air storage chamber and enters the first water injection port of the plate body from the water outlet end of the water injection channel, and finally injects a set amount of water into the internal cavity of the plate body; during the water injection process, the gas in the internal cavity is discharged into the air storage chamber through the first water injection port and the water injection channel, and the gas storage volume of the air storage chamber is equal to or greater than the exhaust volume discharged after the internal cavity is injected with water, that is, the water injection is completed; S3. Close the first water inlet in S2 to obtain a heat spreader.

10. The method for processing a vapor chamber according to claim 9, characterized in that: The processing method also includes: S4, removing the removable structure in S3.

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