Ultrathin vapor chamber membranization jig device

Abstract

The invention discloses an ultrathin vapor chamber membranization jig device, and relates to the technical field of jigs, the ultrathin vapor chamber membranization jig device comprises a jig main body, the jig main body is provided with a hollow cavity, the cavity is provided with multiple layers of partition plates in the longitudinal direction, and the multiple layers of partition plates are provided with a plurality of containing grooves used for containing vapor chambers; a movable partition plate in sliding fit with the multiple layers of partition plates is further arranged in the cavity, and the movable partition plate can transversely move so as to adjust the size of the containing groove. The problems that in the machining process, collision exists, so that creases are generated on the surface of a product, and unnecessary troubles are caused in the aspects of subsequent production operation, appearance treatment and the like are solved, meanwhile, each groove is provided with relieving teeth for heat circulation, sufficient filming is achieved, the filming number is increased through stacking, and the production efficiency is improved. The production quality and the production efficiency are further improved, and the high-quality production of the ultrathin vapor chamber VC is realized.

Description

Technical Field

[0001] The present application relates to the field of fixture technology, and in particular to an ultra-thin heat spreader film fixture device. Background Art

[0002] With the continuous development of science and technology, the performance of electronic equipment is also constantly being optimized, including a variety of components that face the problem of heating that cannot be ignored during use. In order to solve the problem of heating during the operation of electronic equipment, it has become a development trend to use efficient heat dissipation and heat equalization technology to dissipate heat from electronic components and optical equipment. Based on this, heat spreaders with high thermal conductivity, temperature uniformity and structural adaptability have been widely used in electronic devices and other fields.

[0003] However, although the vapor chamber has met the heat dissipation requirements to a certain extent, it is facing the trend of extreme ultra-thin development. Due to the demand for thinner and thinner thickness, the bending resistance, folding resistance and processability of the current ultra-thin vapor chamber cannot continue to adapt to the increasingly reduced thickness requirements during the manufacturing, storage and transportation processes.

[0004] In the traditional vapor chamber film forming process, only vapor chambers of a certain size can be produced, and the vapor chamber will collide with the fixture placement slot used to place the vapor chamber. Since the vapor chamber is extremely thin, creases will appear on the product surface, and the placement slot of the traditional fixture adopts an enclosing structure. The vapor chamber cannot form good air circulation during the film forming process, and sufficient film formation cannot occur. The hydrophilicity does not meet the requirements, resulting in an insufficient film forming process and affecting production quality.

[0005] In addition, the traditional film forming fixture of the heat spreader is also insufficient in the number of films that can be formed at one time, resulting in low film forming production efficiency of the product. Summary of the invention

[0006] The main purpose of the present application is to provide an ultra-thin heat spreader film-forming fixture device to solve the above-mentioned problems.

[0007] The technical solutions adopted in this application are as follows:

[0008] An ultra-thin heat spreader film jig device includes a jig body, the jig body has a hollow cavity, the cavity is longitudinally provided with multi-layer partitions, the multi-layer partitions are provided with a plurality of placement grooves for placing the heat spreader, the inner wall of each placement groove is provided with shovel teeth, and the cavity is also provided with a movable partition that slides with the multi-layer partition, and the movable partition is used to move laterally to adjust the size of the placement groove.

[0009] Optionally, the plate surface of the movable partition is provided with guide holes which are plugged into the multi-layer partitions in a one-to-one correspondence, and both ends of the movable partition are provided with elastic supporting members which abut against the multi-layer partitions.

[0010] Optionally, the elastic supporting member includes pin holes arranged at both ends of the movable partition, a spring arranged in the pin hole and a pin head fixed to the spring, and the pin head is pressed against the multi-layer partition by the elastic force of the spring to limit the movable partition.

[0011] Optionally, the multiple layers of partitions are spaced apart from each other to form a heat dissipation channel.

[0012] Optionally, the jig body is further provided with a connecting portion for stacking multiple jig bodies.

[0013] Optionally, the connecting portion includes a groove and a boss which are arranged on the same jig body, the groove is located on the bottom surface of the jig body, and the boss is located on the top surface of the jig body.

[0014] Optionally, the grooves are arranged in a group on both sides of the bottom surface of the fixture body, and the bosses correspond to and fit with the grooves.

[0015] Optionally, the length, width and height of the groove are 121mm*9mm*5mm, and the length, width and height of the boss are 120mm*8mm*19mm.

[0016] Optionally, the four corners of the jig body are provided with snap-fit ​​structures for locking upper and lower adjacent jig bodies.

[0017] Optionally, the width of the placement groove is no more than 2 mm, and the distance between adjacent placement grooves is 2 mm.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] The present application includes a jig body, the jig body having a hollow cavity, the cavity being longitudinally provided with multiple layers of partitions, the multiple layers of partitions being provided with a plurality of placement slots for placing a heat spreader, the inner wall of each placement slot being provided with shovel teeth, and the cavity being provided with a movable partition that slides with the multiple layers of partitions, the movable partition being able to move laterally to adjust the size of the placement slot. An ultra-thin heat spreader membrane jig device proposed in the present application, through an open placement slot structure, after the heat spreader is placed in the placement slot, can form a good air circulation, which is convenient for the heat spreader to be evenly heated and fully membraneized, and at the same time, after the heat spreader is placed, its water injection port forms a fulcrum support with the placement slot, and the heat spreader and the placement slot are not in contact, thereby avoiding collision and deformation between the heat spreader and the jig, and multiple movable partitions can adjust the size of the formed placement slot, which is suitable for producing heat spreaders of different sizes and can also increase the one-time production quantity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic diagram of the structure of the ultra-thin vapor chamber film forming fixture device provided in an embodiment of the present application at one viewing angle;

[0021] Figure 2 A schematic diagram of the structure of the ultra-thin heat spreader film-forming fixture device provided in an embodiment of the present application from another perspective.

[0022] Description of the reference numerals in the accompanying drawings:

[0023] 1- fixture body, 101- multi-layer partition, 102- movable partition, 2- placement groove, 3- boss, 4- groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0028] In order to solve the problems of edge collision, insufficient membraneization, inability to meet hydrophilic requirements and too few membranes, the patent of the present invention proposes an ultra-thin heat spreader membrane fixture device, which designs a rectangular membrane fixture placement groove for placing the heat spreader, and each groove is designed with shovel teeth for heat circulation, so that the heat spreader can be fully in contact with the hot air flow to ensure sufficient membraneization. At the same time, protruding structures are designed on both sides to stack the membrane fixtures, thereby increasing the number of membranes under the condition of achieving sufficient membraneization, greatly improving production efficiency, and effectively solving the shortcomings of traditional membraneization methods. The product can be fully membraneized, and the appearance of the ultra-thin heat spreader is effectively improved. The placement groove and shovel teeth of the membrane fixture proposed in the present invention are used for sufficient heat circulation, which improves the appearance while improving the membraneization efficiency, and effectively improves the product yield of the entire heat spreader, which is expected to increase by 10%, which is in line with the development trend of ultra-thin VC heat spreaders and has the advantages of high efficiency, high quality, ultra-thinness and low cost.

[0029] See attached Figure 1 and Figure 2 As shown, an embodiment of the present application provides an ultra-thin heat spreader film jig device, including a jig body 1, the jig body 1 has a hollow cavity, the cavity is longitudinally provided with a multi-layer partition 101, the multi-layer partition 101 is provided with a plurality of placement grooves 2 for placing the heat spreader, the inner wall of each placement groove 2 is provided with shovel teeth, and a movable partition 102 that slides with the multi-layer partition 101 is also provided in the cavity, and the movable partition 102 can move laterally to adjust the size of the placement groove 2.

[0030] It can be found that by setting a multi-layer partition 101 in the hollow cavity, and setting a placement groove 2 on the multi-layer partition 101, the placement groove 2 is an open design. During the filming, the fixture body 1 can form a good air circulation after being placed in the oven, so that the heat spreader can be fully in contact with the hot air, ensuring that the heat spreader is fully filmed. In addition, during the filming process of the upper and lower covers of the heat spreader, because the thickness of the upper and lower covers is very thin, if the fixture is in contact with the surroundings during the filming process, there will be a problem of collision and deformation. The fixture of this application needs to clamp the water injection port position during the placement process, and the position below the water injection port is placed in the designed placement groove 2. The entire heat spreader is only in contact with the placement groove 2 through the water injection port. The water injection port is in contact with the placement groove 2 to form a fulcrum to support the heat spreader in the placement groove 2. The heat spreader itself does not contact the placement groove 2, thereby avoiding the heat spreader from being bumped and damaged. Because the placement groove 2 is an open structure, there is a large area of ​​high temperature on all sides, which can make the product fully contact with high temperature during the process to avoid the influence of water vapor on the product. At the same time, the movable partition 102 can change the size of the placement groove 2 by adjustment, so as to produce products of different sizes, and the practicality is greatly improved.

[0031] It should be noted that during the membrane process, deionized water needs to be injected into the heat spreader, so each heat spreader is designed with a water injection port for injecting deionized water into the board.

[0032] Specifically, in this embodiment, the fixture body 1 is a rectangular parallelepiped structure with a length of 300 mm and a width of 50 mm. When the fixture body 1 is placed in the oven for film production, the fixture body 1 can be placed in a horizontal row. The long strip design is not only convenient for placement, but also can improve the placement stability of the fixture body 1. 255 placement slots 2 are formed by multi-layer partitions 101 and movable partitions 102. The width of the placement slots 2 is less than 2 mm, which can block the water injection port and prevent the heat spreader from falling into the placement slots 2. The distance between adjacent placement slots 2 is 2 mm, which can ensure that the product is neat and orderly, not messy, and can also prevent the heat spreader from sticking during the film process.

[0033] In order to adjust the size of the placement slot 2 by the movable partition 102, in one embodiment, a plurality of guide holes are provided on the plate surface of the movable partition 102, and the guide holes are in a one-to-one correspondence with the multi-layer partition 101. The multi-layer partition 101 passes through the guide holes to form a sliding connection with the movable partition 102, and the size of the placement slot 2 can be changed by sliding the movable partition 102. Of course, in order to fix the size of the placement slot 2 for producing the heat spreader during the filmization process, elastic top support members that contact the multi-layer partition 101 are provided at both ends of the movable partition 102.

[0034] In the above, the elastic supporting member includes pin holes arranged at both ends of the movable partition 102, a spring is fixedly arranged in the pin hole, a pin head is fixedly arranged on the spring, the spring is in a compressed state, and the pin head is pressed outward against the multi-layer partition 101 under the elastic force of the spring, thereby forming a damped sliding. Therefore, each time the movable partition 102 is slid, it is necessary to forcefully move it to adjust the size of the placement groove 2. After the size of the placement groove 2 is adjusted, the external force of moving the movable partition 102 is removed, and the elastic force of the spring external support is used to press the pin head against the multi-layer partition 101, thereby forming a limit and fixing the size of the placement groove 2. It can be seen that by moving the movable partition 102 along the multi-layer partition 101 with damped sliding, the size of the placement groove 2 can be adjusted, so that heat spreaders of different sizes can be produced, which is convenient and practical.

[0035] In addition, it is not difficult to find that the multi-layer partitions 101 are spaced apart from each other and cooperate with the movable partitions 102 to form a plurality of heat dissipation channels, which facilitate heat dissipation and air circulation. During the production process, the product is placed in an oven, and the oven is heated to a specific temperature for film formation. Since the film formation temperature requires 380 degrees and the temperature is high, the heat dissipation channel can not only dissipate the heat, but also allow the product to fully contact the 380-degree high temperature, thereby avoiding the color difference problem caused by different contact temperatures, and also allowing the center temperature to convect, which has a significant effect on improving the film formation yield of the heat spreader.

[0036] At the same time, in order to increase the number of one-time film production of heat spreader, such as Figure 1 and Figure 2 As shown, the fixture body 1 is also provided with a connection portion for stacking multiple fixture bodies 1. It is not difficult to imagine that by stacking multiple fixture bodies 1 and putting them into the oven for filming together through the connection portion, the number of films produced by the vapor chamber at one time can be greatly increased, and the filming production efficiency of the vapor chamber can be greatly improved.

[0037] Specifically, the connecting portion includes a groove 4 and a boss 3 provided on the same jig body 1, the groove 4 is located on the bottom surface of the jig body 1, and the boss 3 is located on the top surface of the jig body 1. It can be imagined that during the film production of the heat spreader, the groove 4 on the bottom surface of the upper heat spreader is aligned with the boss 3 on the top surface of the lower heat spreader for overlapping and stacking, and then placed in the oven. The heat spreader is a rectangular structure, which is convenient for horizontal placement, which can significantly increase the production quantity of the heat spreader at one time and greatly improve the film production efficiency of the heat spreader. Of course, in order to ensure the stability of the stacking of the jig body 1, the groove 4 is provided as a group on both sides of the bottom surface of the jig body 1, and the boss 3 corresponds to and fits with the groove 4, so that after the jig body 1 is stacked, the boss 3 is inserted into the groove 4, and the double boss 3 cooperates with the double groove 4 to increase the stability of the jig body 1 after stacking.

[0038] In this embodiment, the length, width and height of the groove 4 are 121mm*9mm*5mm, and the length, width and height of the boss 3 are 120mm*8mm*19mm. The design of 0.5mm on one side can not only facilitate the stacking of the jigs, but also avoid the shaking problem after stacking. At the same time, since the boss 3 is 14mm higher than the groove 4, after stacking, a gap is formed between the upper and lower jig bodies 1 to facilitate air circulation and heat dissipation, and the 14mm height gap reserves enough space for the water injection hole.

[0039] In addition, in order to prevent the jig body 1 from falling after being stacked, a snap-on structure (not shown in the figure) for locking the upper and lower adjacent jig bodies 1 can be optionally set at the four corners of the bottom and top surfaces of the jig body 1, such as a hook is set on the bottom side of the jig body 1, and a buckle is set on the top side of the jig body 1. After the jig bodies 1 are stacked, the hook is buckled with the buckle, thereby increasing the stability of the jig bodies 1 after stacking and preventing the jig bodies 1 from falling.

[0040] In summary, the present application provides an ultra-thin heat spreader film fixture device, including a fixture body 1, the fixture body 1 has a hollow cavity, the cavity is longitudinally provided with a multi-layer partition 101, the multi-layer partition 101 is provided with a plurality of placement grooves 2 for placing the heat spreader, the inner wall of each placement groove 2 is provided with shovel teeth, and the cavity is also provided with a movable partition 102 that slides with the multi-layer partition 101. The movable partition 102 can move laterally to adjust the size of the placement groove 2. Through the open placement groove 2 structure, the heat spreader is placed in the placement groove 2. After the groove 2 is formed, better air circulation can be formed, which is convenient for the heat spreader to be evenly heated and fully filmed. At the same time, after the heat spreader is placed, its water inlet and the placement groove 2 form a fulcrum support, and the heat spreader and the placement groove 2 are not in contact, thereby avoiding the heat spreader and the fixture from being damaged and deformed due to collision, and multiple movable partitions 102 can adjust the size of the placement groove 2 formed, which is suitable for producing heat spreaders of different sizes. At the same time, the fixture body 1 can be stacked through the groove 4 and the boss 3, which can increase the number of heat spreaders produced at one time and effectively improve production efficiency.

[0041] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An ultra-thin heat spreader film forming fixture device, characterized in that: The jig body comprises a hollow mold cavity, wherein the mold cavity is longitudinally provided with multi-layer partitions, the multi-layer partitions are provided with a plurality of placement grooves for placing heat spreaders, the inner wall of each placement groove is provided with shovel teeth, and the mold cavity is also provided with a movable partition that slides with the multi-layer partition, and the movable partition is used to move laterally to adjust the size of the placement groove.

2. The ultra-thin heat spreader film forming fixture device according to claim 1, characterized in that: The plate surface of the movable partition is provided with guide holes which are plugged in one-to-one with the multi-layer partitions, and both ends of the movable partition are provided with elastic supporting members which contact with the multi-layer partitions.

3. The ultra-thin heat spreader film forming fixture device according to claim 2, characterized in that: The elastic supporting member includes pin holes arranged at both ends of the movable partition, springs arranged in the pin holes and pin heads fixed to the springs. The pin heads are pressed against the multi-layer partitions by the elastic force of the springs to limit the movable partitions.

4. The ultra-thin heat spreader film forming fixture device according to claim 1, characterized in that: The multi-layer partitions are spaced apart from each other to form a heat dissipation channel.

5. The ultra-thin heat spreader film forming fixture device according to claim 1, characterized in that: The jig body is also provided with a connecting portion for stacking a plurality of jig bodies.

6. The ultra-thin heat spreader film forming fixture device according to claim 5, characterized in that: The connecting portion includes a groove and a boss which are arranged on the same fixture body, the groove is located on the bottom surface of the fixture body, and the boss is located on the top surface of the fixture body.

7. The ultra-thin heat spreader film forming fixture device according to claim 6, characterized in that: The grooves are arranged in a group on both sides of the bottom surface of the fixture body, and the bosses correspond to and fit the grooves.

8. The ultra-thin heat spreader film forming fixture device according to claim 7, characterized in that: The length, width and height of the groove are 121mm*9mm*5mm, and the length, width and height of the boss are 120mm*8mm*19mm.

9. The ultra-thin heat spreader film forming fixture device according to claim 5, characterized in that: The four corners of the jig body are provided with snap-fit ​​structures for locking the upper and lower adjacent jig bodies.

10. The ultra-thin heat spreader film forming fixture device according to claim 1, characterized in that: The width of the placement groove is no more than 2 mm, and the distance between adjacent placement grooves is 2 mm.

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