Graphene heat dissipation film flattening device

Abstract

The utility model relates to a graphene heat dissipation film flattening device, which belongs to the technical field of heat dissipation films and comprises a bottom frame, a flattening frame, a flattening rod group and a driving component, the flattening frame and the driving component are mounted on the bottom frame, the flattening rod group is rotatably mounted on a winding frame, the driving component drives the flattening rod group to rotate, and the driving component drives the flattening rod group to rotate. The graphene heat dissipation film is rolled through the first rod, the second rod and the movable rod, so that the graphene heat dissipation film becomes flat, the whole flattening process is stable, and the flattening effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation films, in particular to a graphene heat dissipation film flattening device. Background Art

[0002] Thermal conductivity and heat dissipation have great application demands in many fields such as electronics, communications, lighting, aviation, and national defense. The mainstream thermal conductive materials on the market are still mainly aluminum and copper or their alloys, while in recent years, graphite heat dissipation films have been widely used and quickly occupied the market share of traditional materials.

[0003] Graphene is a single layer of carbon atoms with a honeycomb structure, in which each carbon atom is bonded to three adjacent carbon atoms in sp2 hybridization. As a two-dimensional material, graphene has excellent physical and chemical properties, and its thermal conductivity is as high as 5300W / (m·K). Preparing graphene into a heat dissipation film will greatly improve the efficiency of thermal conductivity and heat dissipation.

[0004] Graphene heat dissipation films are prone to uneven spraying or bending during the preparation process and need to be leveled. Conventional leveling devices are not effective in leveling heat dissipation films of different thicknesses. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the above background.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0007] The utility model discloses a graphene heat dissipation film flattening device, comprising a base frame, a flattening frame, a flattening rod group and a driving assembly, wherein the flattening frame and the driving assembly are mounted on the base frame, the flattening rod group is rotatably mounted on a winding frame, and the driving assembly drives the flattening rod group to rotate;

[0008] The flattening rod group includes a first rod, a second rod and a movable rod. The first rod and the second rod have the same structure and are placed in parallel. The driving assembly drives the first rod to rotate through a gear. The first rod and the second rod are connected by a matching gear. The first rod and the second rod have the same rotation direction, and the movable rod is located on a symmetrical plane between the first rod and the second rod.

[0009] Preferably, the flattening frame includes a fixed frame and a movable frame, the movable frame is rotatably mounted on the fixed frame, both ends of the first rod and the second rod are mounted on the fixed frame, the movable rod is mounted on the movable frame through bearings, and an adjustment component is provided on the base frame, which is used to adjust the distance between the movable rod and the fixed rod.

[0010] Preferably, the adjustment assembly includes an adjustment frame, an electric push rod and a limit screw, the limit screw is installed on the base frame through the adjustment frame, one end of the movable rod is inserted into the adjustment frame and is located below the limit screw, and the electric push rod drives the movable frame.

[0011] Preferably, the output shaft of the electric push rod is connected to the movable frame, the movable frame is provided with a shaft seat, and the bearings at both ends of the movable rod are installed on the shaft seat.

[0012] Preferably, the movable rod presses the top surface of the graphene heat dissipation film, the first rod and the second rod press the bottom surface of the graphene heat dissipation film, and the graphene heat dissipation film is driven to move by a winding device. Beneficial Effects

[0013] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] The utility model discloses a graphene heat dissipation film flattening device, which rolls the graphene heat dissipation film through a first rod, a second rod and a movable rod, so that the graphene heat dissipation film becomes flat, the whole flattening process is stable, and the flattening effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a graphene heat dissipation film flattening device of the utility model;

[0016] Figure 2 The utility model is a schematic structural diagram of a flattening frame of a graphene heat dissipation film flattening device.

[0017] Explanation of the symbols in the schematic diagram:

[0018] 100, base frame; 110, adjustment assembly; 111, adjustment frame; 112, electric push rod; 113, limit screw;

[0019] 200, flattening frame; 210, fixed frame; 220, movable frame; 230, shaft seat;

[0020] 300, flattening rod group; 310, first rod; 320, second rod; 330, movable rod;

[0021] 400. Drive assembly. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0026] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Example

[0028] Refer to the attached Figure 1-2 A graphene heat dissipation film flattening device of this embodiment includes a base frame 100, a flattening frame 200, a flattening rod group 300 and a driving assembly 400. The flattening frame 200 and the driving assembly 400 are installed on the base frame 100, the flattening rod group 300 is rotatably installed on the winding frame, and the driving assembly 400 drives the flattening rod group 300 to rotate;

[0029] The flattening rod group 300 includes a first rod 310, a second rod 320 and a movable rod 330. The first rod 310 and the second rod 320 have the same structure. The first rod 310 and the second rod 320 are placed in parallel. The driving assembly 400 drives the first rod 310 to rotate through a gear. The first rod 310 and the second rod 320 are connected by a matching gear. The first rod 310 and the second rod 320 have the same rotation direction. The movable rod 330 is located on the symmetric plane of the first rod 310 and the second rod 320. With this designed structure, the graphene heat dissipation film is rolled by the first rod 310, the second rod 320 and the movable rod 330, so that the graphene heat dissipation film becomes flat, the entire flattening process is stable, and the flattening effect is good.

[0030] The flattening frame 200 of this embodiment includes a fixed frame 210 and a movable frame 220. The movable frame 220 is rotatably mounted on the fixed frame 210. Both ends of the first rod 310 and the second rod 320 are mounted on the fixed frame 210. The movable rod 330 is mounted on the movable frame 220 through a bearing. An adjustment component 110 is provided on the base frame 100. The adjustment component 110 is used to adjust the distance between the movable rod 330 and the fixed rod.

[0031] The adjustment assembly 110 of this embodiment includes an adjustment frame 111, an electric push rod 112 and a limit screw 113. The limit screw 113 is installed on the base frame 100 through the adjustment frame 111. One end of the movable rod 330 is inserted into the adjustment frame 111 and is located below the limit screw 113. The electric push rod 112 drives the movable frame 220.

[0032] The structure of the above design allows the spacing between the movable rod 330 and the first rod 310 and the second rod 320 to be adjusted to adapt to graphene heat dissipation films of different thicknesses, so it has high adaptability and has a better flattening effect than when different adjustment devices press thinner heat dissipation films.

[0033] The output shaft of the electric push rod 112 of the present embodiment is connected to the movable frame 220 , and the movable frame 220 is provided with a shaft seat 230 . The bearings at both ends of the movable rod 330 are installed on the shaft seat 230 .

[0034] In this embodiment, the movable rod 330 presses the top surface of the graphene heat dissipation film, the first rod 310 and the second rod 320 press the bottom surface of the graphene heat dissipation film, and the graphene heat dissipation film is driven to move by a winding device.

[0035] During adjustment, the movable frame 220 is driven to rotate by the electric push rod 112, and the shaft seat 230 is rotated to connect the movable frame 220. At this time, due to the effect of gravity, the shaft seat 230 rotates correspondingly with the movable frame 220, and the distance between the movable rod 330 and the first rod 310 changes. At this time, the locking screw can be adjusted accordingly to limit the movable rod 330 from shaking and keep the distance stable.

[0036] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A graphene heat dissipation film flattening device, characterized in that: The invention comprises a base frame (100), a flattening frame (200), a flattening rod group (300) and a driving assembly (400), wherein the flattening frame (200) and the driving assembly (400) are mounted on the base frame (100), the flattening rod group (300) is rotatably mounted on a winding frame, and the driving assembly (400) drives the flattening rod group (300) to rotate; The flattening rod group (300) comprises a first rod (310), a second rod (320) and a movable rod (330); the first rod (310) and the second rod (320) have the same structure; the first rod (310) and the second rod (320) are placed in parallel; the driving assembly (400) drives the first rod (310) to rotate via a gear; the first rod (310) and the second rod (320) are connected via a matching gear; the first rod (310) and the second rod (320) rotate in the same direction; and the movable rod (330) is located on a symmetric plane between the first rod (310) and the second rod (320).

2. The graphene heat dissipation film flattening device according to claim 1, characterized in that: The flattening frame (200) comprises a fixed frame (210) and a movable frame (220), wherein the movable frame (220) is rotatably mounted on the fixed frame (210), both ends of the first rod (310) and the second rod (320) are mounted on the fixed frame (210), the movable rod (330) is mounted on the movable frame (220) via a bearing, and an adjustment component (110) is provided on the base frame (100), wherein the adjustment component (110) is used to adjust the distance between the movable rod (330) and the fixed rod.

3. The graphene heat dissipation film flattening device according to claim 2, characterized in that: The adjustment assembly (110) comprises an adjustment frame (111), an electric push rod (112) and a limit screw (113); the limit screw (113) is installed on the base frame (100) through the adjustment frame (111); one end of the movable rod (330) is inserted into the adjustment frame (111) and is located below the limit screw (113); and the electric push rod (112) drives the movable frame (220).

4. The graphene heat dissipation film flattening device according to claim 3, characterized in that: The output shaft of the electric push rod (112) is connected to a movable frame (220), a shaft seat (230) is provided on the movable frame (220), and bearings at both ends of the movable rod (330) are installed on the shaft seat (230).

5. The graphene heat dissipation film flattening device according to claim 2, characterized in that: The movable rod (330) presses the top surface of the graphene heat dissipation film, the first rod (310) and the second rod (320) press the bottom surface of the graphene heat dissipation film, and the graphene heat dissipation film is driven to move by a winding device.

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