TW202126976A - Vapor chamber without degassing tube and method for manufacturing the same - Google Patents

Abstract

The invention provides a vapor chamber without degassing tube and method for manufacturing the same. The vapor chamber without degassing tube includes a first plate, a second plate, and a chamber. The first plate forms a ring wall, and the second plate is opposite to the first plate. The second plate is connected to the ring wall, and the chamber is formed between the first plate and the second plate. The chamber is limited to the inner edge of the ring wall, and the first plate forms a connecting seat which is connected with the second plate. The connecting seat is recessed in a channel. One end of the channel communicates with the chamber, and the other end of the channel forms an occlusion portion, thereby closing the chamber. The present invention does not need to provide a degassing tube, and the overall structure of the vapor chamber without degassing tube is quite simple, and the method for manufacturing the vapor chamber without degassing tube is easy to implement and reliable.

Description

Temperature equalizing plate without degassing pipe and method for manufacturing the same

The present invention relates to a uniform temperature plate; in particular, it refers to an innovative technology revealer of a uniform temperature plate without a degassing pipe and a method for manufacturing the uniform temperature plate without a degassing pipe.

The uniform temperature plate is a heat conduction structure for transferring heat energy. It includes a base plate and a cover plate that are connected to each other. A closed chamber is formed between the base plate and the cover plate, and a working fluid is provided in the chamber. With the phase change of the working fluid, heat energy can be quickly absorbed and guided.

After the substrate and the cover plate are butted and connected, when the chamber is to be filled with the working fluid, a degassing tube is required to communicate with the chamber, and the chamber is filled with the working fluid through the degassing tube, and The air remaining in the chamber is extracted to form a hollow state, and then the communication between the chamber and the degassing pipe is blocked by pressing, welding, etc., and finally the degassing pipe is cut off to make the temperature equalizing plate The overall shape of the exterior is flat and without protrusions.

It is found that the following problems and shortcomings still exist in the actual application experience of the conventional temperature equalizing plate: the conventional equalizing temperature plate needs to be additionally provided with the degassing pipe, and after the water injection and degassing of the chamber is completed, the chamber is closed. The part of the degassing pipe protruding outside the periphery of the temperature equalizing plate is cut down, and various protective measures are applied to the degassing pipe to prevent the degassing pipe from being damaged by foreign objects in the future, so that the overall structure of the conventional temperature equalizing plate complex.

Therefore, in view of the problems of the above-mentioned conventional uniform temperature plate technology, how to develop an innovative technology that can be more ideal and practical is really awaiting the relevant industry to think about the goal and direction of the breakthrough; in view of this, the invention is invented With many years of experience in manufacturing, development and design of related products, human-centered people, after detailed design and careful evaluation for the above goals, finally came up with a practical invention.

The main purpose of the present invention is to provide a uniform temperature plate without degassing pipe and a method for manufacturing the uniform temperature plate without degassing pipe. The technical problem to be solved is how to develop a more ideal and practical The goal is to think about and make breakthroughs in the new-type uniform temperature plate and the method of manufacturing the uniform temperature plate.

Based on the foregoing objectives, the technical feature of the present invention to solve the problem is mainly that the uniform temperature plate without degassing tube includes:

A first board, the first board forms a ring wall at the periphery;

A second board, the second board is opposite to the first board, and the second board is connected to the ring wall; and

A chamber, the chamber is formed between the first plate and the second plate, and the chamber is limited to the inner edge of the ring wall, and the chamber is used to contain a working fluid;

The first plate forms a socket in the direction of the second plate in the range of the cavity, the socket is connected with the second plate, the top edge of the socket is recessed in a flow channel, and one end of the flow channel is the first end In communication with the chamber, the other end of the flow channel forms a blocking part, thereby closing the chamber.

The main effects and advantages of the present invention are that there is no need to set up a degassing pipe, and there is no need to apply protective measures to the degassing pipe. The overall structure of the uniform temperature plate without degassing pipe is simplified, and the method of manufacturing the uniform temperature plate is easy to implement And the reliability is high.

Please refer to Figures 1 to 9, which are the embodiments of the uniform temperature plate without degassing pipe and the method for manufacturing the uniform temperature plate without degassing pipe of the present invention. However, these embodiments are for illustrative purposes only. The patent application is not limited by this embodiment.

As shown in Figures 1 to 3, the preferred embodiment of the temperature equalizing plate without degassing tube includes a first plate 10, a second plate 20 and a chamber 30, wherein the first plate 10 A ring wall 12 is formed on the periphery, the second plate 20 is opposite to the first plate 10, and the second plate 20 is connected to the ring wall 12, and the cavity 30 is formed between the first plate 10 and the second plate 20, and the cavity 30 is limited to the inner edge of the ring wall 12, and the cavity 30 is used for accommodating working fluid (not shown in the figure).

The first plate 10 forms a socket 14 in the direction of the second plate 20 in the range of the cavity 30. The socket 14 is connected to the second plate 20. The top edge of the socket 14 is recessed in the flow channel 16. One end of the flow channel 16 is connected with the cavity 30 by the first end 162, and the other end of the flow channel 16 forms a blocking portion 34 to close the cavity 30 accordingly.

A number of pillars 32 may be arranged inside the chamber 30 as needed, and each pillar 32 is connected to the first plate 10 and the second plate 20 respectively.

As shown in Figures 4 to 8, the method of manufacturing the aforementioned uniform temperature plate without degassing tube includes the following steps:

Preparation of the first board and the second board: a first board 10 and a second board 20 are formed by using metal plates with high thermal conductivity, and the first board 10 forms a ring wall 12 and a socket 14, and the ring wall 12 is formed On the periphery of the first plate 10, the socket 14 is formed in the range of the space enclosed by the ring wall 12, the socket 14 is recessed in the flow channel 16, and one end of the flow channel 16 is the first end 162 extending in At the outer edge of the socket 14, the other end of the runner 16 is a second end 166; the second plate 20 penetrates an injection hole 24.

Overlapping: the first board 10 and the second board 20 are aligned, and the peripheral edge of the second board 20 abuts against the ring wall 12, so that a gap is formed between the first board 10 and the second board 20 The chamber 30, the flow channel 16 communicates with the chamber 30 at the first end 162, and the second end 166 of the flow channel 16 extends to communicate with the injection hole 24, so that the chamber 30 passes through the flow channel 16 And the injection hole 24 communicates with the outside.

Full-peripheral edge sealing: the ring wall 12 is airtightly combined with the second plate 20; the ring wall 12 can be airtightly combined with the second plate 20 by hot pressure welding or brazing or other similar means, and the ring After the wall 12 and the second plate 20 are airtightly combined, the cavity 30 can only communicate with the outside through the flow channel 16 and the injection hole 24.

Liquid injection and degassing: inject working fluid (not shown in the figure) into the chamber 30 through the injection hole 24 and the flow channel 16, and remove the air inside the chamber 30 through the injection hole 24 and the flow channel 16, The chamber 30 is formed into a vacuum state; the liquid injection and degassing step can be performed in a vacuum environment, and the working fluid is injected into the chamber 30 under the condition that the inside of the chamber 30 is in a vacuum state. as well as

Sealing: fusion welding is applied to the socket 14 and the adjacent part of the second plate 20 and the socket 14, so that the socket 14 and the second plate 20 are combined, and the flow channel 16 and The communicating portion of the injection hole 24 closes the portion of the flow channel 16 pointing to the second end 166 to form a blocking portion 34 as shown in FIG. 8, thereby closing the cavity 30.

As shown in Figure 8, the sealing step can choose to use a die 40 to press against the second plate 20, and the die 40 is opposite to the injection hole 24, so that the second plate 20 is placed on the periphery of the injection hole 24. The part and the part of the socket 14 around the second end 166 are fused to form the blocking portion 34. The blocking portion 34 fills the injection hole 24 and a part of the flow channel 16, thereby closing the cavity 30, and a notch 22 is formed on the outside of the second plate 20 due to the pressing of the die 40.

In the sealing step, a metal ultrasonic welding method can be used to combine the socket 14 and the second plate 20, and at the same time the socket 14 and the second plate 20 are combined, the flow channel 16 and the injection hole are blocked. 24, the part of the flow channel 16 pointing to the second end 166 is closed to form the blocking portion 34; the sealing step can also choose to use resistance welding to connect the socket 14 and the second plate 20, At the same time when the socket 14 is combined with the second plate 20, the blocking portion 34 is formed as shown in FIG. 3 to block the flow passage 16 so that the flow passage 16 points to the second end 166 Closed.

In the sealing step, after the flow channel 16 is blocked, the notch 22 may be further sealed by laser welding as needed, so that the notch 22 is completely filled and disappeared, thereby further improving the sealing of the cavity 30 The reliability.

Furthermore, in the steps of preparing the first board and the second board, a plurality of pillars 32 are formed on the first board 10, and each of the pillars 32 is located on the same side of the ring wall 12 and the socket 14 (such as the fifth As shown in Figures and Figure 6), in the full-circle edge sealing step, each of the pillars 32 is combined with the second plate 20; the present invention can also be selected in the steps of preparing the first plate and the second plate according to needs, A number of pillars (not shown in the figure) are formed on the second plate 20, and in the full-circle edge sealing step, each pillar is combined with the first plate 10 respectively.

With the above-mentioned structural composition and technical features, the temperature equalizing plate without degassing pipe of the present invention does not need to be additionally provided with a degassing pipe, and the flow channel 16 is formed in the range of the chamber 30 to cooperate with the injection hole 24, and it is enough Provide a path for air to flow out to form a vacuum and to inject the working fluid. After the liquid injection and degassing step is completed, welding processing methods are used to combine the socket 14 with the second plate 20 while blocking the flow The communicating part of the passage 16 and the injection hole 24 forms the blocking portion 34, so that the part of the flow passage 16 pointing to the second end 166 is closed, and the chamber 30 can be closed. The present invention does not require a degassing pipe. There is no need to apply protective measures to the degassing pipe, the overall structure of the temperature equalizing plate without degassing pipe of the present invention is simplified, and the manufacturing method of the temperature equalizing plate without degassing pipe is easy to implement and has high reliability.

As shown in Figures 1 to 3, in this example, the second plate 20 is formed with a notch 22 on the outside, and the notch 22 is closed at the end pointing to the first plate 10, and the notch 22 The direction pointing to the first plate 10 intersects with the extending direction of the flow channel 16 pointing to the blocking portion 34. The blocking portion 34 is formed between the recess 22 and the flow channel 16, thereby closing the cavity 30; The socket 14 can optionally be integrally connected with the ring wall 12.

As shown in FIG. 9, another embodiment is mainly different from the preferred embodiment in that the socket 14 is formed inside the cavity 30 and the socket 14 is separated from the ring wall 12.

10: The first board 12: Ring wall 14: Socket 16: runner 162: first end 166: second end 20: second board 22: Notch 24: Note hole 30: Chamber 32: Pillar 34: Occlusion 40: Die head 2: The connecting part of the flow channel and the chamber is enlarged and shown in Figure 2 6: The enlarged part of the first end of the runner is shown in Figure 6

Figure 1 is a perspective view of a preferred embodiment of the uniform temperature plate without degassing pipes of the present invention. Figure 2 is a partial enlarged view of the connecting portion between the flow channel and the chamber in Figure 1. Fig. 3 is a partial cross-sectional view of the flow channel part of the preferred embodiment of the temperature equalizing plate without degassing pipe of the present invention. Fig. 4 is a flow chart of the method of manufacturing the uniform temperature plate without degassing pipe according to the present invention. Fig. 5 is a perspective exploded view of the first plate and the second plate of the method for manufacturing the uniform temperature plate without degassing pipes according to the present invention. Figure 6 is a partial enlarged view of the first end of the runner in Figure 5. Fig. 7 is a perspective view of the superimposed state of the first plate and the second plate in the method of manufacturing the uniform temperature plate without degassing pipes according to the present invention. Fig. 8 is a partial cross-sectional view of the operation state of the closing step of the method of manufacturing the uniform temperature plate without degassing pipe according to the present invention. Figure 9 is a top view of another embodiment of the temperature equalizing plate without degassing pipes according to the present invention.

10: The first board

12: Ring wall

14: Socket

16: runner

162: first end

20: second board

22: Notch

32: Pillar

34: Occlusion

2: The connecting part of the flow channel and the chamber is enlarged and shown in Figure 2

Claims (10)

A uniform temperature plate without degassing pipe, including: A first board, the first board forms a ring wall at the periphery; A second board, the second board is opposite to the first board, and the second board is connected to the ring wall; and A chamber, the chamber is formed between the first plate and the second plate, and the chamber is limited to the inner edge of the ring wall, and the chamber is used to contain a working fluid; The first plate forms a socket in the direction of the second plate in the range of the cavity, the socket is connected with the second plate, the top edge of the socket is recessed in a flow channel, and one end of the flow channel is the first end In communication with the chamber, the other end of the flow channel forms a blocking part, thereby closing the chamber. As described in item 1 of the scope of patent application, the temperature equalization plate without degassing tube, wherein the second plate forms a notch on the outside, and the notch is closed at the end pointing to the first plate, and the notch points to the The direction of the first plate intersects with the extending direction of the flow channel pointing to the blocking portion, and the blocking portion is formed between the recess and the flow channel. The temperature equalizing plate without degassing pipe as described in item 1 of the scope of patent application, wherein the socket is integrally connected with the ring wall. For example, the uniform temperature plate without degassing tube described in any one of items 1 to 3 of the scope of patent application, wherein a plurality of pillars are arranged inside the chamber, and each pillar is connected to the first plate and the second plate respectively. The boards meet. A method for manufacturing a uniform temperature plate without degassing pipe as described in item 1 of the scope of patent application, including the following steps: Preparation of the first board and the second board: a first board and a second board are formed from metal plates with high thermal conductivity, and the first board forms a ring wall and a socket, and the ring wall is formed on the first board The peripheral edge, the socket is formed in the range of the space enclosed by the ring wall, the socket is recessed in a flow channel, one end of the flow channel is a first end extending from the outer edge of the socket, and the other end of the flow channel Is the second end; the second plate penetrates an injection hole; Overlapping: The first plate is aligned with the second plate, and the peripheral edge of the second plate abuts against the ring wall, so that a cavity is formed between the first plate and the second plate, and the flow channel Communicating with the chamber at the first end, the second end of the flow channel extends and communicates with the injection hole, so that the chamber communicates with the outside through the flow channel and the injection hole; Full-circle edge sealing: the ring wall is airtightly combined with the second plate; Liquid injection and degassing: inject working fluid into the chamber through the injection hole and the flow channel, and remove the air inside the chamber through the injection hole and the flow channel, so that the chamber is formed into a vacuum state; and Sealing: fusion welding is applied to the socket and the adjacent part of the second plate to the socket to combine the socket with the second plate and form a blocking part to block the flow path, so that the The part of the flow channel pointing to the second end is closed, thereby closing the chamber. The method for manufacturing a uniform temperature plate without a degassing pipe as described in item 5 of the scope of patent application, wherein the sealing step is to use a metal ultrasonic welding method to combine the socket and the second plate and block the formation of the flow channel The occlusion. The method for manufacturing a uniform temperature plate without a degassing tube as described in item 5 of the scope of patent application, wherein the sealing step is to use resistance welding to connect the socket and the second plate, and block the flow path to form the occlusion Department. For example, the method for manufacturing a uniform temperature plate without a degassing tube as described in any one of the scope of the patent application item 5 to 7, wherein after the sealing step blocks the flow channel, the second laser welding method is further used to seal A recess formed on the outside of the board. As described in any one of items 5 to 7 of the scope of patent application, the method for manufacturing a uniform temperature plate without degassing pipe, wherein in the steps of preparing the first plate and the second plate, a plurality of pillars are formed on the first plate Each of the pillars is located on the same side where the ring wall and the socket are formed. In the all-around edge sealing step, each of the pillars is respectively combined with the second board. As described in any one of items 5 to 7 of the scope of the patent application, the method for manufacturing a uniform temperature plate without a degassing tube, wherein in the steps of preparing the first plate and the second plate, a plurality of pillars are formed on the second plate In the full-circle edge sealing step, each of the pillars is respectively combined with the first plate.

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