Three-dimensional uniform-temperature plate welding jig

Abstract

The utility model provides a three-dimensional uniform-temperature plate welding jig which comprises a base, and at least one supporting arm and a plate body are arranged on the base. The plate body is arranged on the supporting arm, and a plurality of solder grooves are concavely formed in the plate body; a through hole is formed in the bottom of each welding flux groove, and a heat supply pipe penetrates through the through hole. By means of the jig, the three-dimensional uniform-temperature plate to be welded is welded in an inverted mode, so that the welding flux is prevented from being melted and entering the uniform-temperature plate body cavity under the action of gravity to cause corrosion and pollute working fluid and a capillary structure in the cavity, and the quality and the heat dissipation effect are further prevented from being affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of uniform temperature plate welding jigs, in particular to a kind of three-dimensional uniform temperature plate welding jigs. BACKGROUND

[0002] With the rapid development of science and technology, the computing performance of electronic equipment is greatly increased, and a large amount of heat is also generated. In order to ensure that the electronic equipment is not damaged due to high temperature, a heat dissipation device must be provided. The heat dissipation device currently used includes a three-dimensional vapor chamber (3D vapor chamber), which is a heat dissipation device combining a heat pipe 92 and a vapor chamber body 91.

[0003] During manufacturing, in order to combine the heat pipe 92 and the vapor chamber body 91, solder 93 is melted and welded at the joint. As shown in FIG. Figure 1 When welding, the vapor chamber body 91 is placed below, and the heat pipe 92 is joined (e.g., inserted) in a perpendicular manner to the upwardly facing welding receptacle of the vapor chamber body 91, and the annular solder 93 is fitted into the upright heat pipe 92. In this way, the solder 93 falls into the joint between the heat pipe 92 and the vapor chamber body 91 for heating to enable the heat pipe 92 and the vapor chamber body 91 to be combined by melting of the solder 93.

[0004] However, by using this forward welding method, although the solder 93 at the joint between the heat pipe 92 and the vapor chamber body 91 can be melted to weld and combine the two, other problems also arise. The solder not only wets between the surfaces of the heat pipe 92 and the vapor chamber body 91, but also flows into the internal chamber of the vapor chamber body 91 from the gap at the joint between the heat pipe 92 and the vapor chamber body 91 due to capillary action and the influence of gravity, causing the internal chamber of the vapor chamber body 91 to be contaminated. This affects the quality and heat dissipation effect of the three-dimensional vapor chamber.

[0005] Therefore, how to effectively combine the heat pipe 92 and the vapor chamber body 91 during the manufacturing process of the three-dimensional vapor chamber by using the solder 93 to weld the heat pipe 92 and the vapor chamber body 91 without causing the internal chamber of the vapor chamber body 91 to be corroded by the solder, contaminating the working fluid and capillary structure in the chamber, and affecting the quality and heat dissipation effect, is a direction that needs to be researched and improved by the inventor and related manufacturers in this industry. SUMMARY

[0006] The utility model aims to provide a three-dimensional vapor chamber welding jig for welding a plurality of heat pipes and a vapor chamber body in an inverted manner, which can effectively improve the risk of corrosion and contamination of the internal chamber of the vapor chamber body caused by melting of the solder during traditional forward (vertical) welding processing.

[0007] The utility model provides a three -dimensional even temperature board welding jig, including a base, be equipped with at least one support arm on the base, and a plate body. The plate body is located on the support arm, and the plate body is concave and is equipped with a plurality of solder grooves. The bottom of each solder groove is provided with a through hole for the heat pipe to penetrate.

[0008] According to the utility model one embodiment, wherein the base is equipped with a partition groove, the partition groove includes at least one fitting area and a pipe groove area, one end of the support arm is clamped with the fitting area, and the pipe groove area is used for accommodating the plurality of inserted heat pipes.

[0009] According to the utility model one embodiment, wherein the fitting area includes a first fitting area and a second fitting area, and the first fitting area and the second fitting area are arranged on the two sides of the pipe groove area respectively.

[0010] According to the utility model one embodiment, wherein the support arm includes a first support arm and a second support arm, and one end of the first support arm and the second support arm is arranged in the first fitting area and the second fitting area respectively.

[0011] According to the utility model one embodiment, wherein the plate body is provided with a plurality of butt joints, which can be clamped with the other end of the support arm.

[0012] According to the utility model one embodiment, wherein each solder groove is a circular groove for accommodating an annular solder.

[0013] According to the utility model one embodiment, wherein the annular solder is phosphor copper solder.

[0014] The above three -dimensional even temperature board welding jig of the utility model is inverted for welding the three -dimensional even temperature board to be welded, so as to prevent the solder from melting and entering the cavity of the even temperature plate under the action of gravity, causing corrosion, pollution of the working fluid and capillary structure in the cavity, and affecting the quality and heat dissipation effect.

[0015] The above description of the utility model and the following embodiment are used to demonstrate and explain the principle of the utility model, and provide further explanation of the claims of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view schematic diagram of prior art three -dimensional even temperature plate welding structure.

[0017] Figure 2 It is the three -dimensional schematic diagram of three -dimensional even temperature plate welding jig according to the utility model.

[0018] Figure 3 It is the three -dimensional exploded schematic diagram of three -dimensional even temperature plate welding jig according to the utility model.

[0019] Figure 4It is a three-dimensional exploded view of the three-dimensional uniform plate welding jig according to the utility model.

[0020] Figure 5 It is a front view of the three-dimensional uniform plate welding jig according to the utility model.

[0021] Figure 6 It is a front view of the three-dimensional uniform plate welding jig according to the utility model.

[0022] Figure 7 It is a front view of the three-dimensional uniform plate welding jig according to the utility model.

[0023] Figure 8 It is a front view of the three-dimensional uniform plate welding jig according to the utility model.

[0024] Figure 9 It is a three-dimensional uniform plate according to the utility model.

[0025] Mark explanation: A three-dimensional uniform plate welding jig; 1 base; 12 partition groove; 121 fitting area; 121a first fitting area; 121b second fitting area; 122 pipe groove area; 2 support arm; 21 first support arm; 22 second support arm; 23 convex part; 3 plate body; 30 through hole; 311 solder groove; 311a bottom; 33 butt joint hole; 331 first butt joint hole; 332 second butt joint hole; 333 third butt joint hole; 334 fourth butt joint hole; B three-dimensional uniform plate; B1 uniform plate body; B10 chamber; B11 surface to be welded; B110 through hole; B12 contact part; B2 heat pipe; B20 closed pipe; B21 open end; B22 closed end; B3 annular solder. Specific implementation

[0026] Please refer to the drawings shown, Figure 2 It is a three-dimensional view of the three-dimensional uniform plate welding jig according to the utility model; Figure 3 And Figure 4 It is a three-dimensional exploded view of the three-dimensional uniform plate welding jig according to the utility model; Figure 5 And Figure 7 It is a front view of the three-dimensional uniform plate welding jig according to the utility model; Figure 6 And Figure 8 It is a front view of the three-dimensional uniform plate welding jig according to the utility model; Figure 9 It is a three-dimensional uniform plate according to the utility model.

[0027] As Figure 2 And Figure 3As shown, the utility model provides a kind of three-dimensional uniform temperature plate welding jig A, at least including a pedestal 1, the pedestal 1 is equipped with at least one support arm 2, and a plate body 3. Wherein, the support arm 2 is equipped above the pedestal 1, and the plate body 3 is equipped above the support arm 2.

[0028] Wherein, the plate body 3 is concave multiple solder grooves 311, each solder groove 311 bottom 311a is equipped with a through hole 30, for a heat pipe B2 is inserted into. Wherein the heat pipe B2 has a closed end B22 and an open end B21, in specific implementation, as shown in the figure, Figure 4 to Figure 6 As shown, the closed end B22 of each heat pipe B2 to be welded is inserted into the plurality of through holes 30 through the solder groove 311, and then the uniform temperature plate body B1 is placed and positioned on the plate body 3, so that the plurality of heat pipes B2 is fixed below, and the uniform temperature plate body B1 is fixed above in an inverted state.

[0029] Wherein, in order to smoothly insert the closed end B22 of the plurality of heat pipes B2 through the plate body 3, the aperture of the through hole 30 is matched with the pipe diameter of the plurality of heat pipes B2. At the same time, the uniform temperature plate body B1 is in the mode of the welding surface B11 facing down, so as to correspond and be placed on the plate body 3. For example, the welding surface B11 of the uniform temperature plate body B1 is provided with a plurality of through holes B110 communicating with the chamber B10 inside it, at this time, the plurality of solder grooves 311 and through holes 30 of the plate body 3 are arranged at positions corresponding to the plurality of through holes B110.

[0030] Therefore, as shown in the figure, Figure 4 to Figure 8 Before the welding is completed, the open end B21 of the plurality of heat pipes B2 is inserted into the plurality of through holes B110 of the open end B21, and the reverse closed end B22 thereof is vertically inserted into the plurality of through holes 30, until the welding surface B11 of the uniform temperature plate body B1 contacts and is supported by the plate body 3. In this way, by the support of the three-dimensional uniform temperature plate welding jig A, the temporary joint of the plurality of heat pipes B2 and the welding surface B11 of the uniform temperature plate body B1 (i.e. the contact position of the through hole B110 and the open end B21) is inverted, and naturally corresponds and abuts against the plurality of solder grooves 311 under the guidance of gravity.

[0031] In other embodiments, the plurality of heat pipes B2 can also be expanded in diameter at the open end B21 to form a convex lip (not shown), so that it is not necessary to temporarily insert the plurality of through holes B110 of the uniform temperature plate body B1, but the closed end B22 of the plurality of heat pipes B2 can be vertically inserted downward through the plurality of through holes 30 under the action of gravity, until the convex lip enters the bottom 311a of the plurality of solder grooves 311, so that the convex lip cannot pass through the plurality of through holes 30 due to the larger outer diameter, and the plurality of heat pipes B2 are fixed by the plurality of through holes 30, and the utility model is not limited thereto.

[0032] Furthermore, before the plurality of heat pipes B2 are installed on the heat spreader plate B1, solder can be pre-placed in the plurality of solder grooves 311. With the fixation of the three-dimensional heat spreader plate welding fixture A, the open end B21 of the plurality of heat pipes B2 and the temporary joint of the through hole B110 abut against the plate 3. Therefore, as long as solder is placed in the plurality of solder grooves 311 on the plate 3, the solder will correspond to and closely abut against the temporary joint of the plurality of heat pipes B2 on the surface B11 of the heat spreader plate B1 to be welded.

[0033] More specifically, such as Figure 5 to Figure 8 As shown, the outer diameter of the plurality of solder grooves 311 is larger than the diameter of the plurality of through holes 30, and the plurality of solder grooves 311 are recessed from the plate body 3 to form a basin-shaped bottom 311a; at this time, each solder groove 311 can be a circular groove, and the plurality of solder can be an annular solder B3, the inner circumference of which is coaxial with the plurality of through holes 30, so as to cooperate with the plurality of heat pipes B2 to pass into the plurality of through holes 30.

[0034] Therefore, the coaxial positioning of the plurality of annular solder B3, its insertion around the outer periphery of the plurality of heat pipes B2, and its abutment against the welding surface B11 of the heat spreader B1 ensure that the molten solder simultaneously contacts both the plurality of heat pipes B2 and the heat spreader B1. This allows the molten annular solder B3 to simultaneously wet the area of ​​the temporary connection between the two, and due to the surface tension in the molten state, the plurality of annular solder B3 gathers towards the center of the two. Therefore, even if the heat spreader B1 is on top and the plurality of heat pipes B2 are below, the downward force of gravity does not affect the ability to achieve a sufficient weld bond.

[0035] Moreover, precisely because of the circular and annular arrangement, even if the plurality of heat pipes B2 push or touch the plurality of annular solder B3 during the process of penetrating the plurality of through holes 30, the plurality of annular solder B3 can partially return to the plurality of solder tanks 311 by gravity under the balance and guidance of the arc-shaped contact surface.

[0036] In some embodiments, the plurality of heat pipes B2 and the vapor chamber B1 may also be connected by a non-separable solder. For example, the solder may be pre-formed at a predetermined position on the plurality of heat pipes B2 or the vapor chamber B1. Therefore, it is only necessary to fix the plurality of heat pipes B2 and the vapor chamber B1 to the three-dimensional vapor chamber welding fixture A, and then heat them to melt them at the plurality of solder baths 311. This is not a limitation.

[0037] In this way, such as Figure 7 and Figure 8As shown, the three-dimensional heat spreader welding fixture A of this invention fixes the inverted relative relationship between the plurality of heat pipes B2, the plurality of annular solder pieces B3, and the heat spreader body B1, in preparation for the subsequent welding operation. At this time, it is only necessary to heat the three-dimensional heat spreader welding fixture A, along with the plurality of heat pipes B2, the plurality of annular solder pieces B3, and the heat spreader body B1 fixed therein (for example, by sending them into a reflow oven), to melt the plurality of annular solder pieces B3, thereby welding the plurality of heat pipes B2 to the heat spreader body B1. After the three-dimensional heat spreader B is fabricated, the finished product is removed.

[0038] By fixing the three-dimensional heat spreader welding fixture A of this invention, the heat spreader B1, the plurality of annular solder pieces B3, and the plurality of heat pipes B2 are sequentially inverted. Therefore, the heated and melted plurality of annular solder pieces B3 are guided to wet the gap through the capillary action between the plurality of through holes B110 contacting the heat spreader B1 and the open ends B21 of the plurality of heat pipes B2, thus completing the welding. Furthermore, because gravity acts downwards and away from the heat spreader B1, the molten plurality of annular solder pieces B3 are prevented from entering the cavity B10 of the heat spreader B1 through the multiple through holes B110 due to gravity, thus preventing corrosion, contamination of the working fluid and capillary structure within the cavity B10, and consequently affecting quality and heat dissipation.

[0039] In some embodiments, the plurality of heat pipes B2 and the heat spreader B1 may be made of copper, in which case the plurality of annular solders B3 may be phosphor bronze solder. Figure 7 to Figure 9 As shown, after cooling, the multiple heat pipes B2 in the three-dimensional heat spreader B, which is welded together, have been bonded to the heat spreader body B1 by the molten annular solder B3. This makes the open ends B21 of the multiple heat pipes B2 and the multiple through holes B110 mutually sealed, and the closed pipes B20 in the multiple heat pipes B2 are mutually sealed and connected to the chambers B10 in the heat spreader body B1, and are fully isolated from the outside except for necessary (e.g., degassing, filling with coolant).

[0040] Furthermore, to accommodate different needs, the design of the three-dimensional heat spreader B can vary. The diameter, location, and length of the multiple heat pipes B2, as well as the area and shape of the heat spreader B1, may differ. This invention can accommodate all these variations and is not limited to them. Figure 9 As shown, at the location where a heat source (e.g., a processor) is expected to be attached on the side opposite to the surface to be soldered B11, a contact portion B12 can be protruded to form a platform shape. At this time, a plurality of through holes B110 with a larger aperture can be provided in the area corresponding to the surface to be soldered B11, so as to cooperate with a plurality of heat pipes B2 with a larger diameter in the local area close to the heat source, thereby improving the heat dissipation efficiency around the heat source.

[0041] like Figure 3 and Figure 4 As shown, the plurality of through holes 30 on the plate 3, in conjunction with the plurality of heat pipes B2, are configured to have inconsistent hole diameters, and the plurality of through holes 30 and the annular solder B3 are positioned to match the positions of the plurality of heat pipes B2. Additionally, as... Figure 6 and Figure 7 As shown, in order to maximize the length of the multiple heat pipes B2 that can be installed, the upper side of the base 1 may also be provided with a partition groove 12. The partition groove 12 includes at least one fitting area 121 and a tube groove area 122. One end of the support arm 2 is engaged with the fitting area 121. The tube groove area 122 provides sufficient space for the closed end B22 (opposite to the open end B21) of the multiple heat pipes B2 after they are inserted.

[0042] In some embodiments, the base 1 and the plate 3 are both rounded rectangles to avoid collisions and reduce the risk of damaging other components or the three-dimensional uniform temperature plate welding fixture A itself due to concentrated force.

[0043] In some embodiments, two support arms 2 are provided between the base 1 and the plate 3, namely a first support arm 21 and a second support arm 22. Correspondingly, the fitting area 121 also includes a first fitting area 121a and a second fitting area 121b, which are respectively located on both sides of the tube groove area 122. One end of the first support arm 21 and the second support arm 22 are respectively located in the first fitting area 121a and the second fitting area 121b. In this way, the weight of the heat equalization plate B1 borne by the plate 3 can be evenly distributed and transferred to the base 1 from both sides. Furthermore, the first support arm 21 and the second support arm 22 of different lengths can be replaced to match the length of the plurality of heat pipes B2.

[0044] In addition, the plate body 3 is provided with a plurality of docking holes 33, and the other end of the plurality of support arms 2 is provided with a plurality of protrusions 23 corresponding to the plurality of docking holes 33 to engage with the plurality of docking holes 33. The plurality of docking holes 33 includes a first docking hole 331, a second docking hole 332, a third docking hole 333, and a fourth docking hole 334, which are located at the four corners of the plate body 3. This not only evenly distributes the force on the plate body 3, but also allows for the replacement of different plate bodies 3 depending on the size and shape of the temperature equalization plate body B1, and even the position and diameter of the plurality of heat pipes B2.

[0045] In summary, this utility model, by using the fixture to perform welding in an inverted manner, effectively avoids the corrosion caused by molten solder flowing into the internal cavity B10 of the heat exchange plate B1 due to gravity during traditional upright (vertical) welding. This corrosion would contaminate the working fluid and capillary structure within the cavity B10, affecting overall quality and heat dissipation. The utility model has been described in detail above, but the above description is merely a preferred embodiment and should not be construed as limiting the scope of the utility model. All equivalent variations and modifications made based on this utility model should still fall within the patent coverage of this utility model.

Claims

1. A three-dimensional heat exchanger welding fixture for fixing a plurality of heat pipes to be welded and a heat exchanger body, characterized in that, The three-dimensional heat exchanger welding fixture includes: A base, on which at least one support arm is provided; and A plate is provided on the support arm. The plate has multiple solder grooves recessed in it. Each solder groove has a through hole at the bottom for each heat pipe to pass through.

2. The three-dimensional heat exchanger welding fixture as described in claim 1, characterized in that: The base is provided with a partitioned slot, which includes at least one fitting area and a tube groove area. One end of the support arm engages with the fitting area, and the tube groove area is used to provide accommodating space for the plurality of heat pipes.

3. The three-dimensional heat exchanger welding fixture as described in claim 2, characterized in that: The mating area includes a first mating area and a second mating area, which are respectively located on both sides of the tube trench area.

4. The three-dimensional heat exchanger welding fixture as described in claim 3, characterized in that: The support arm includes a first support arm and a second support arm, with one end of the first support arm and the second support arm respectively disposed in the first fitting area and the second fitting area.

5. The three-dimensional heat exchanger welding fixture as described in claim 2, characterized in that: The plate is provided with a plurality of mating holes, and the other end of the support arm is provided with a plurality of protrusions corresponding to the plurality of mating holes, so as to engage with the plurality of mating holes.

6. The three-dimensional heat exchanger welding fixture as described in claim 1, characterized in that: The base is a rounded rectangle.

7. The three-dimensional heat exchanger welding fixture as described in claim 1, characterized in that: The plate is shaped like a rounded rectangle.

8. The three-dimensional heat exchanger welding fixture as described in claim 5, characterized in that: The plurality of mating holes includes a first mating hole, a second mating hole, a third mating hole, and a fourth mating hole, which are located at the four corners of the plate, respectively.

9. The three-dimensional heat exchanger welding fixture as described in claim 1, characterized in that: Each solder trough is a circular groove used to hold a ring of solder.

10. The three-dimensional heat exchanger welding fixture as described in claim 9, characterized in that: The ring-shaped solder is a phosphor bronze solder.

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