Heat pipe exhaust sealing tool

Abstract

The utility model discloses a heat pipe exhaust sealing tool which comprises a vacuum mechanism, the vacuum mechanism is provided with a vacuum chamber, a sealing piece is arranged at the end of the vacuum chamber, a heat pipe penetrates into the vacuum chamber from the middle of the sealing piece, the vacuum maintaining mechanism comprises a vacuum maintaining piece, and the vacuum maintaining piece is connected with the vacuum chamber in a sealed mode. The vacuum holding piece is provided with a holding part, and the holding part is arranged in the vacuum chamber; and the vacuum maintaining driving piece is used for driving the vacuum maintaining piece to be close to the sealing piece, so that the end face of the maintaining part abuts against the sealing piece, and sealing of the vacuum chamber is achieved. After the heat pipe is taken out, the vacuum keeping driving piece enables the keeping part of the vacuum keeping piece to abut against the sealing piece, so that outside air is prevented from entering the vacuum chamber, the vacuum degree in the vacuum chamber is guaranteed, the situation that the vacuum degree in the vacuum chamber is seriously reduced due to the fact that too much outside air flows in is avoided, and the next vacuumizing time can be shortened; therefore, the vacuumizing efficiency of the heat pipe can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pipe processing equipment, in particular to a heat pipe exhaust sealing tool. Background Art

[0002] During the production process of heat pipes, a heat pipe exhaust sealing tool is needed to seal the semi-finished heat pipes. The heat pipe exhaust sealing tool includes a vacuum mechanism and a sealing mechanism. The sealing mechanism is arranged on the outside of the vacuum mechanism. When vacuuming and sealing the semi-finished heat pipes, the open end of the semi-finished heat pipe needs to be inserted into the vacuum mechanism, and then the vacuum mechanism performs a vacuum operation on the semi-finished heat pipe. After the vacuuming is completed, the sealing mechanism works to squeeze the open end of the semi-finished heat pipe, causing the open end of the semi-finished heat pipe to deform and complete the sealing. Since the sealing mechanism is arranged on the outside of the vacuum mechanism, the gap between the open end of the heat pipe and the sealing position is large, and in the subsequent process, the excess part of the heat pipe needs to be removed, that is, the excess part between the sealing position and the open end needs to be removed, resulting in a lot of pipe waste.

[0003] In order to solve the problem of pipe waste, there is a utility model patent in the prior art with the authorization announcement number CN218723410U, and the patent name is a heat pipe vacuuming device. It improves the heat pipe exhaust sealing tooling so that the sealing mechanism is set in the vacuum chamber of the vacuum mechanism, thereby reducing the distance between the open end of the heat pipe and the sealing position to reduce the waste of pipes. In the above utility model patent, after the heat pipe is vacuumed and the heat pipe is taken out, the outside air will enter the vacuum chamber, which means that after the open end of the next heat pipe is inserted into the vacuum chamber, it will take some time to completely vacuum the vacuum chamber again, which leads to an increase in the single working time of the heat pipe exhaust sealing tooling, resulting in low working efficiency of the heat pipe exhaust sealing tooling. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a heat pipe exhaust sealing tool to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] The solution of the utility model to solve its technical problems is:

[0006] The heat pipe exhaust sealing tool includes a vacuum mechanism, the vacuum mechanism is provided with a vacuum chamber, the end of the vacuum chamber is provided with a seal, the heat pipe passes through the vacuum chamber from the middle of the seal, and also includes a vacuum holding mechanism, the vacuum holding mechanism includes:

[0007] A vacuum holding member, the vacuum holding member is sealed and connected to the vacuum chamber, the vacuum holding member is provided with a holding portion, and the holding portion is arranged in the vacuum chamber;

[0008] A vacuum holding driving member is used to drive the vacuum holding member to approach the sealing member so that the end surface of the holding portion is tightly pressed against the sealing member to achieve sealing of the vacuum chamber.

[0009] As a further improvement of the above technical solution, a heat pipe end receiving groove is formed at one end of the retaining portion close to the sealing member, and the opening of the heat pipe end receiving groove faces the sealing member.

[0010] As a further improvement of the above technical solution, the depth of the accommodating groove at the end of the heat pipe is greater than the length of the heat pipe extending into the vacuum chamber.

[0011] As a further improvement of the above technical solution, a sealing mechanism is also included, and the sealing mechanism includes:

[0012] A sealing structure, the sealing structure is sealed and connected to the vacuum chamber, two sealing structures are provided, and the two sealing structures are arranged opposite to each other; the sealing structure is provided with a sealing portion, and the sealing portion is arranged in the vacuum chamber;

[0013] A sealing drive structure drives the two sealing parts to move closer or farther away to achieve sealing of the ends of the heat pipe.

[0014] As a further improvement of the above technical solution, the number of the sealing drive structures is set to two, and the two sealing drive structures respectively drive the two sealing structures to approach or move away from the central axis of the seal at the same time.

[0015] As a further improvement of the above technical solution, the two sealing drive structures are arranged on the same side of the vacuum chamber.

[0016] As a further improvement of the above technical solution, a sealing extrusion mechanism is also included, and the sealing extrusion mechanism includes:

[0017] an extrusion structure, the extrusion structure being located on a side of the sealing member away from the vacuum chamber, the extrusion structure being in contact with the sealing member;

[0018] An extrusion drive structure drives the extrusion structure to approach the vacuum chamber to extrude the sealing member so that the surface of the sealing member fits the heat pipe to enhance the sealing performance between the sealing member and the heat pipe.

[0019] As a further improvement of the above technical solution, the extrusion drive structure is located on a side of the sealing member away from the extrusion structure.

[0020] As a further improvement of the above technical solution, the extrusion structure is a cylindrical structure, and an extrusion center hole is provided in the middle of the extrusion structure, and the extrusion center hole is used for the heating pipe to pass through.

[0021] As a further improvement of the above technical solution, a trumpet hole is provided at one end of the extrusion structure away from the sealing member, the trumpet hole is connected to the extrusion center hole, and the diameter of the trumpet hole gradually increases away from the sealing member.

[0022] The beneficial effect of the present invention is that when the heat pipe is taken out, the vacuum holding driving member causes the holding portion of the vacuum holding member to press against the sealing member, thereby preventing outside air from entering the vacuum chamber, thereby ensuring the vacuum degree in the vacuum chamber, and preventing excessive inflow of outside air from causing a serious decrease in the vacuum degree in the vacuum chamber, which can shorten the next vacuuming time and thus improve the efficiency of vacuuming the heat pipe.

[0023] The utility model is used in the technical field of heat pipe processing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief description of the drawings required for describing the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also derive other design solutions and drawings based on these drawings without inventive effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of a half-section structure of an embodiment of the present utility model;

[0027] Figure 3 yes Figure 2 A partial enlarged schematic diagram of part A.

[0028] In the figure, 100, vacuum mechanism; 110, entry hole; 120, vacuum equipment connection channel; 130, sealing member; 200, vacuum holding mechanism; 210, vacuum holding member; 211, heat pipe end receiving groove; 220, vacuum holding drive member; 300, sealing extrusion mechanism; 310, extrusion structure; 311, extrusion center hole; 312, horn hole; 320, extrusion drive structure; 400, sealing mechanism; 411, first sealing structure; 412, second sealing structure; 421, first sealing drive structure; 422, second sealing drive structure. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interactively without conflicting with each other.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0032] Reference Figures 1 to 3 The heat pipe exhaust sealing tooling includes a vacuum mechanism 100, a vacuum holding mechanism 200, a sealing and extruding mechanism 300 and a sealing mechanism 400.

[0033] The vacuum mechanism 100 comprises a vacuum chamber, which is provided with an inlet port 110 and a vacuum equipment connection channel 120. The vacuum equipment connection channel 120 is used to connect to the vacuum equipment to evacuate the interior of the vacuum chamber. A seal 130 is installed within the inlet port 110. This seal 130 is a cylindrical elastic member with a through hole in its center for the heating pipe to pass through.

[0034] The vacuum holding mechanism 200 includes a vacuum holding member 210 and a vacuum holding driving member 220 .

[0035] The vacuum retainer 210 is a rod-shaped member that passes through the vacuum chamber. A sealing ring seals the vacuum retainer 210 and the vacuum chamber. The vacuum retainer 210 is slidably connected to the vacuum chamber. The end of the vacuum retainer 210 near the sealing member 130 is configured as a retaining portion.

[0036] The vacuum maintaining driver 220 is configured as a linear cylinder and is disposed outside the vacuum chamber. The vacuum maintaining driver 220 is fixedly connected to the vacuum chamber. The output end of the vacuum maintaining driver 220 is fixedly connected to the vacuum maintaining member 210. The vacuum maintaining driver 220 drives the vacuum maintaining member 210 toward or away from the sealing member 130, thereby causing the end surface of the maintaining portion to abut against or away from the sealing member 130.

[0037] When the heat pipe is taken out, the vacuum holding drive member 220 makes the holding portion of the vacuum holding member 210 press against the sealing member 130, thereby preventing outside air from entering the vacuum chamber, thereby ensuring the vacuum degree in the vacuum chamber, and avoiding excessive inflow of outside air causing a serious drop in the vacuum degree in the vacuum chamber, which can shorten the next vacuuming time and thus improve the efficiency of vacuuming the heat pipe.

[0038] Specifically, in this embodiment, the retaining portion is provided with a heat pipe end receiving groove 211 that opens toward the sealing member 130. The heat pipe end receiving groove 211 can receive the end of the heat pipe. Before the heat pipe is removed, the vacuum retaining driver 220 drives the vacuum retaining member 210 toward the sealing member 130. During the movement of the vacuum retaining member 210 toward the sealing member 130, the end of the heat pipe enters the heat pipe end receiving groove 211, thereby shortening the distance between the retaining portion and the sealing member 130. Ultimately, after the heat pipe is removed, the vacuum degree of the vacuum chamber can be maintained by simply ensuring that the end surface of the retaining portion abuts against the sealing member 130.

[0039] By providing the heat pipe end receiving groove 211, the time for the retaining portion to move to the position abutting against the sealing member 130 can be shortened when the heat pipe is taken out, thereby shortening the time for outside air to enter the vacuum chamber, which is beneficial to ensuring the decrease in the vacuum degree in the vacuum chamber. By ensuring the decrease in the vacuum degree in the vacuum chamber, the next vacuuming speed can be faster, thereby effectively improving the vacuuming efficiency of the heat pipe.

[0040] Specifically, in this embodiment, the depth of the heat pipe end receiving groove 211 of the retaining portion is greater than the length of the heat pipe extending into the vacuum chamber (the length of the heat pipe extending into the vacuum chamber referred to here is the length of the portion of the heat pipe extending from the sealing member 130 in the vacuum chamber). By adjusting the depth of the heat pipe end receiving groove 211 of the retaining portion, the end surface of the retaining portion is already in contact with the sealing member 130 before the heat pipe is taken out, thereby achieving separation between the internal space of the vacuum chamber and the outside world. Subsequently, when the heat pipe is taken out, the outside air cannot flow into the vacuum chamber, thereby further reducing the drop in the vacuum degree in the vacuum chamber, making the next vacuuming faster, thereby effectively improving the vacuuming efficiency of the heat pipe.

[0041] Specifically, in this embodiment, the end edge of the heat pipe end receiving groove 211 is provided with a chamfered corner. By providing the chamfered corner, the heat pipe can be prevented from being scratched by the sharp edge, thereby effectively protecting the peripheral integrity of the heat pipe.

[0042] The sealing mechanism 400 includes a sealing structure and a sealing drive structure.

[0043] The number of sealing structures is set to two, and the sealing structure is provided with a sealing portion, and the sealing portions of the two sealing structures are arranged relative to each other. In order to solve the problem of waste of pipes, the sealing portion is arranged in the vacuum chamber, wherein one sealing structure is slidably connected to the vacuum chamber, and the other sealing structure can be slidably connected to the vacuum chamber, or can be fixedly connected to the vacuum chamber. Those skilled in the art can select the connection method of the two sealing structures and the vacuum chamber. The number of sealing drive structures is at least one, and the sealing drive structure drives the sealing structure to slide relative to the vacuum chamber. When the two sealing structures are close to each other, the end of the heat pipe can be squeezed, so that the end of the heat pipe is deformed to achieve sealing of the end of the heat pipe. In this solution, the sealing portion is arranged in the vacuum chamber of the vacuum pumping mechanism 100, thereby reducing the distance between the open end of the heat pipe and the sealing position to reduce waste of pipes.

[0044] Specifically, in this embodiment, both sealing structures are slidably connected to the vacuum chamber. Accordingly, the number of sealing drive structures is also set to two, and the two sealing structures are provided in a one-to-one correspondence with the two sealing drive structures. The two sealing drive structures respectively drive the two sealing structures to move toward or away from each other, thereby achieving sealing of the heat pipe. Specifically, in this embodiment, the sealing drive structure is configured as a linear cylinder.

[0045] If a structure is adopted in which one sealing structure is fixed and the other sealing structure is movable, since the position where the heat pipe is inserted into the vacuum chamber is a certain distance away from the sealing structure, during the sealing process, the movable sealing structure will push the end of the heat pipe toward the knife seat, which will cause a small bend in the heat pipe, which is not conducive to ensuring the straightness of the heat pipe. In addition, the bent heat pipe will hinder the removal of the exhaust sealing tooling for the heat pipe, making it difficult to remove the heat pipe.

[0046] Both sealing structures are set in the form of sliding connection with the vacuum chamber, so that the two seals are close to the central axis of the seal 130 at the same time, which can effectively prevent the heat pipe from bending, thereby effectively ensuring the straightness of the heat pipe, and at the same time making it difficult to remove the heat pipe due to bending.

[0047] Specifically, in this embodiment, the two sealing drive structures are arranged on the same side of the vacuum chamber, and the two sealing drive structures are respectively set as the first sealing drive structure 421 and the second sealing drive structure 422, and the two sealing structures are respectively set as the first sealing structure 411 and the second sealing structure 412. The first sealing structure 411 is arranged on the side of the first sealing structure 411 away from the second sealing structure 412, and the second sealing structure 412 is arranged on the side of the first sealing structure 411 away from the first sealing structure 411. The output end of the first sealing drive structure 421 is fixedly connected to the first sealing structure 411, and the output end of the second sealing drive structure 422 is fixedly connected to the second sealing structure 412. Since the output end of the second sealing drive structure 422 is far away from the second sealing structure 412, the output end of the second sealing drive structure 422 is connected to the second sealing structure 412 through a connecting rod. The output end of the first sealing drive structure 421 and the output end of the second sealing drive structure 422 are in opposite directions, so that the first sealing structure 411 and the second sealing structure 412 move in opposite directions, so as to realize the first sealing structure 411 and the second sealing structure 412 approaching or moving away from each other.

[0048] The sealing extrusion mechanism 300 includes an extrusion structure 310 and an extrusion driving structure 320 .

[0049] The extrusion structure 310 is arranged on the side of the seal 130 away from the vacuum chamber, and the end surface of the extrusion structure 310 abuts against the seal 130. The middle of the extrusion structure 310 is provided with an extrusion center hole 311, which is a through hole for the heat pipe to pass through.

[0050] Specifically, in this embodiment, a trumpet hole 312 is formed at one end of the extruded structure 310 away from the seal 130. The trumpet hole 312 is connected to the extruded central hole 311, and the diameter of the trumpet hole 312 gradually increases in the direction away from the seal 130. The trumpet hole 312 can guide the heat pipe, making it easier to insert the heat pipe into the extruded structure 310.

[0051] The extrusion drive structure 320 is configured as a linear cylinder, which drives the extrusion structure 310 to move closer to or away from the vacuum chamber, so that the seal 130 is axially extruded and deformed, thereby reducing the inner diameter of the through hole opened in the middle of the seal 130, so that the inner wall of the inner circumference of the seal 130 completely fits the outer circumference of the heat pipe, thereby achieving sealing and enhancing the sealing performance between the seal 130 and the heat pipe.

[0052] Specifically, in this embodiment, the extrusion structure 310 is set to a cylindrical structure. The end face of the cylindrical extrusion structure 310 has a larger contact area with the seal 130, which can avoid the small contact area between the extrusion structure 310 and the seal 130 causing local fragility of the seal 130, thereby improving the service life of the seal 130.

[0053] Specifically, in this embodiment, the extrusion drive structure 320 is disposed on a side of the seal 130 away from the extrusion structure 310. Placing the extrusion drive structure 320 on a side of the seal 130 away from the extrusion structure 310 can prevent the extrusion drive structure 320 from being disposed on one side of the extrusion structure 310, thereby preventing the extrusion drive structure 320 from obstructing the removal and insertion of the heat pipe.

[0054] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A heat pipe exhaust and sealing tool, comprising a vacuum mechanism, wherein the vacuum mechanism is provided with a vacuum chamber, a sealing member is provided at the end of the vacuum chamber, and the heat pipe passes through the middle of the sealing member into the vacuum chamber, characterized in that: Also included is a vacuum holding mechanism, the vacuum holding mechanism comprising: A vacuum holding member, the vacuum holding member is sealed and connected to the vacuum chamber, the vacuum holding member is provided with a holding portion, and the holding portion is arranged in the vacuum chamber; A vacuum holding driving member is used to drive the vacuum holding member to approach the sealing member so that the end surface of the holding portion is tightly pressed against the sealing member to achieve sealing of the vacuum chamber.

2. The heat pipe exhaust sealing tool according to claim 1, characterized in that: A heat pipe end receiving groove is formed at one end of the retaining portion close to the sealing member, and an opening of the heat pipe end receiving groove faces the sealing member.

3. The heat pipe exhaust sealing tool according to claim 2, characterized in that: The depth of the heat pipe end accommodating groove is greater than the length of the heat pipe extending into the vacuum chamber.

4. The heat pipe exhaust sealing tool according to claim 1, characterized in that: Also included is a sealing mechanism, the sealing mechanism comprising: A sealing structure, the sealing structure is sealed and connected to the vacuum chamber, two sealing structures are provided, and the two sealing structures are arranged opposite to each other; the sealing structure is provided with a sealing portion, and the sealing portion is arranged in the vacuum chamber; A sealing drive structure drives the two sealing parts to move closer or farther away to achieve sealing of the ends of the heat pipe.

5. The heat pipe exhaust sealing tool according to claim 4, characterized in that: The number of the sealing drive structures is set to two, and the two sealing drive structures respectively drive the two sealing structures to approach or move away from the central axis of the sealing member at the same time.

6. The heat pipe exhaust sealing tool according to claim 5, characterized in that: The two sealing drive structures are arranged on the same side of the vacuum chamber.

7. The heat pipe exhaust sealing tool according to claim 1, characterized in that: Also included is a sealing and squeezing mechanism, the sealing and squeezing mechanism comprising: an extrusion structure, the extrusion structure being located on a side of the sealing member away from the vacuum chamber, the extrusion structure being in contact with the sealing member; An extrusion drive structure drives the extrusion structure to approach the vacuum chamber to extrude the sealing member so that the surface of the sealing member fits the heat pipe to enhance the sealing performance between the sealing member and the heat pipe.

8. The heat pipe exhaust sealing tool according to claim 7, characterized in that: The extrusion driving structure is located on a side of the sealing component away from the extrusion structure.

9. The heat pipe exhaust sealing tool according to claim 7, characterized in that: The extrusion structure is a cylindrical structure, and an extrusion center hole is provided in the middle of the extrusion structure, and the extrusion center hole is used for the heating pipe to pass through.

10. The heat pipe exhaust sealing tool according to claim 9, characterized in that: A trumpet hole is provided at one end of the extrusion structure away from the sealing component. The trumpet hole is communicated with the extrusion center hole, and the diameter of the trumpet hole gradually increases away from the sealing component.

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