Thermal paste application jig

By designing an adjustable thermal paste application fixture, the problems of uneven application and low applicability were solved, achieving efficient and uniform thermal paste application, suitable for a variety of equipment.

CN224574038UActive Publication Date: 2026-07-31DONGGUAN YOUBO ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN YOUBO ELECTRONICS CO LTD
Filing Date
2025-07-04
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing thermal paste application tools lack adequate auxiliary tools, resulting in low application efficiency and unevenness, as well as limited applicability and inability to meet the needs of different devices.

Method used

A thermal paste application fixture was designed, comprising a main body, a cover plate, an application plate, and a placement plate. The distance between the scraper and the application plate is adjusted by a screw and mounting block structure. The uniform application of thermal paste is achieved by combining a sliding plate and a handle. The placement plate and application plate can be replaced to adapt to heat sinks of different sizes.

Benefits of technology

It achieves uniform application of thermal paste, improves application efficiency and quality, enhances the applicability of the device, and is suitable for a variety of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a thermal paste application fixture, including a main body with an installation groove. During use, multiple heat sinks to be coated with thermal paste are placed in the groove on a placement plate. A cover plate can then be flipped over and placed on the placement plate. By rotating a screw, the distance between the scraper at the bottom of the mounting block and the application plate is adjusted to a suitable position. After adjustment, thermal paste is applied to the application plate. Pulling the handle causes the scraper at the bottom of the sliding plate to slide along the surface of the application plate, thus achieving the purpose of evenly applying the thermal paste to the surface of the heat sink. The thickness and size of the application are the same as the thickness and size of the application holes, effectively ensuring the amount of thermal paste applied, guaranteeing production stability and application quality. When applying thermal paste to heat sinks of different sizes, a placement plate and application plate adapted to the size of the heat sink can be replaced to improve the applicability of the device.
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Description

Technical Field

[0001] This utility model relates to the technical field of thermal paste application equipment, specifically a thermal paste application fixture. Background Technology

[0002] Electronic products are products that operate on the basis of electrical energy, mainly including: watches, smartphones, telephones, televisions, DVD players (VCD, SVCD, DVD), video recorders, camcorders, radios, tape recorders, stereo systems, CD players, computers, mobile communication products, etc. Some electronic products contain components that require the application of thermal paste to improve heat dissipation during operation.

[0003] However, there is currently a lack of good auxiliary tools when applying thermal paste to some workpieces, resulting in low work efficiency, which is not conducive to the rapid processing of products. In addition, the application is not uniform enough, and the scraper used is often easily lost.

[0004] Chinese patent CN222753656U discloses a thermal paste application fixture, including a support component and an application component. The support component includes a support plate and a slot. The support plate has an application working area, and the slot is disposed on the support plate with its opening facing the application working area. A graphics card extends into the slot for positioning and fixation, and the area of ​​the graphics card to be coated is located in the application working area. The application component includes a cover plate, a positioning component, and an application component. The positioning component is movably disposed on the support plate, one end of the cover plate is rotatably disposed on the positioning component, and the movable end of the cover plate can cover the graphics card. The cover plate has an application hole, and the application component is movably disposed on the cover plate. This application not only has a simple structure and low manufacturing cost, but also enables continuous and rapid coating operations, improving coating efficiency and ensuring that the thermal paste is evenly applied to the GPU, thus improving product quality.

[0005] However, the applicator in this device is not adjustable and can only apply thermal paste to a single device, resulting in limited applicability. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a thermal paste application fixture, thus solving the aforementioned technical problems.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a thermal paste application fixture, comprising a main body, an installation groove on the main body, a placement plate installed in the installation groove, a scraper cloth on the placement plate having multiple placement slots for placing radiators, a U-shaped cover plate hinged to the main body, an application plate inserted into the cover plate, the application plate having multiple application holes adapted to the positions of the installation grooves, a sliding plate slidably arranged on the cover plate, a handle protruding from the sliding plate, a screw threadedly connected to the sliding plate, an installation block rotatably mounted at the bottom of the screw, a scraper detachably connected to the bottom of the installation block, and two mutually symmetrical vertical limiting rods at the top of the installation block, both vertical limiting rods being slidably arranged on the sliding plate.

[0010] Preferably, the main body of the device has two symmetrical threaded rods connected by threads. The ends of the two threaded rods that are far apart from each other are provided with a first handwheel, and the ends of the two threaded rods that are close to each other extend into the mounting groove and are equipped with a rubber extrusion block.

[0011] Preferably, the main body of the device has two protruding connecting parts, and the cover plate is rotatably installed between the two connecting parts.

[0012] Preferably, the cover plate is provided with two guide rods, and the sliding plate is slidably arranged on the two guide rods.

[0013] Preferably, a second handwheel is provided at the top of the lead screw, and the bottom of the lead screw is rotatably mounted in the mounting block.

[0014] Preferably, the mounting block has two symmetrical insertion slots, and the top of the scraper has two insertion blocks that are adapted to the insertion slots. The insertion blocks are fixed in the insertion slots by connecting bolts.

[0015] Preferably, the cover plate has a sliding mounting groove with a side opening, the sliding mounting groove is connected to the through hole in the middle of the cover plate, the coating plate is slidably arranged in the sliding mounting groove, and the opening end of the sliding mounting groove is fixed with a limit block by a connecting bolt, one side of the limit block abuts against the coating plate.

[0016] Compared with the prior art, this utility model provides a thermal paste application fixture with the following advantages: Through its main body, cover plate, application plate, and placement plate, this utility model allows multiple heat sinks to be coated with thermal paste to be placed in placement slots on the placement plate. The cover plate can then be flipped over and placed on the placement plate, with the application plate on the cover plate tightly against the surface of the heat sink in the placement slot. Through the screw and mounting block, the distance between the scraper at the bottom of the mounting block and the application plate can be adjusted to a suitable position by rotating the screw and screwing it in. After adjustment, thermal paste can be applied to the application plate. Pulling the handle allows the scraper at the bottom of the sliding plate to slide along the surface of the application plate, thus achieving the purpose of evenly applying the thermal paste to the surface of the heat sink. Furthermore, the thickness and size of the application are consistent with the thickness and size of the application holes, effectively ensuring the amount of thermal paste applied, guaranteeing production stability and application quality. When applying thermal paste to heat sinks of different sizes, the placement plate and application plate can be replaced with those suitable for the heat sink size, improving the applicability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the mounting block and plug-in block of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the mounting block and lead screw of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the limiting block and cover plate of this utility model.

[0021] Figure 5 This is an exploded structural diagram of the cover plate, coating plate, and main body of the device of this utility model.

[0022] The components are as follows: 1. Main body of the device; 2. Placement plate; 3. Cover plate; 4. Connector; 5. Guide rod; 6. Sliding plate; 7. Handle; 8. Mounting block; 9. Application plate; 10. Placement groove; 11. Application hole; 12. First handwheel; 13. Insertion groove; 14. Insertion block; 15. Lead screw; 16. Second handwheel; 17. Vertical limit rod; 18. Scraper; 19. Threaded rod; 20. Rubber extrusion block; 21. Sliding mounting groove; 22. Limiting block; 23. Mounting groove. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1-5 A thermal paste application fixture includes a main body 1, an installation groove 23 on the main body 1, a placement plate 2 installed in the installation groove 23, a scraper cloth on the placement plate 2 having multiple placement slots 10 for placing radiators, a U-shaped cover plate 3 hinged to the main body 1, an application plate 9 inserted into the cover plate 3, the application plate 9 having multiple application holes 11 adapted to the positions of the installation groove 23, a sliding plate 6 slidably arranged on the cover plate 3, a handle 7 protruding on the sliding plate 6, a screw rod 15 threadedly connected to the sliding plate 6, an installation block 8 rotatably mounted at the bottom of the screw rod 15, a scraper 18 detachably connected to the bottom of the installation block 8, and two symmetrical vertical limiting rods 17 on the top of the installation block 8, both vertical limiting rods 17 slidably arranged on the sliding plate 6.

[0027] With its main body 1, cover plate 3, application plate 9, and placement plate 2, the device allows multiple heat sinks to be coated with thermal paste to be placed in the placement slots 10 on the placement plate 2 during use. The cover plate 3 can then be flipped over and placed on the placement plate 2, ensuring the application plate 9 on the cover plate 3 is in close contact with the heat sink surface in the placement slots 10. Through the screw 15 and mounting block 8, the distance between the scraper 18 at the bottom of the mounting block 8 and the application plate 9 can be adjusted to a suitable position by rotating the screw 15 and screwing it in. After adjustment, thermal paste can be applied to the application plate 9. By pulling the handle 7, the scraper 18 at the bottom of the sliding plate 6 can be moved along the surface of the application plate 9, thereby achieving the purpose of evenly applying thermal paste to the surface of the heat sink. The thickness and size of the application are the same as the thickness and size of the application hole 11, which can effectively ensure the amount of thermal paste applied, ensure production stability and application quality. When it is necessary to apply thermal paste to heat sinks of different sizes, the placement plate 2 and application plate 9 can be replaced with those that are compatible with the size of the heat sink to improve the applicability of the device.

[0028] Specifically, in this embodiment, the main body 1 of the device is threaded with two symmetrical threaded rods 19. The ends of the two threaded rods 19 that are far apart from each other are provided with a first handwheel 12, and the ends of the two threaded rods 19 that are close to each other extend into the mounting groove 23 and are equipped with a rubber extrusion block 20.

[0029] By cooperating with the screw rod and the rubber extrusion block 20, the rubber extrusion block 20 can be pressed against the side wall of the placement plate 2 by rotating the screw rod and screwing it in, thereby fixing the placement plate 2 in the mounting groove 23.

[0030] Specifically, in this embodiment, the main body 1 of the device is provided with two connecting parts 4, and the cover plate 3 is rotatably installed between the two connecting parts 4.

[0031] Specifically, in this embodiment, the cover plate 3 is provided with two guide rods 5, and the sliding plate 6 is slidably arranged on the two guide rods 5, which can limit the movement range of the cover plate 3 and make the movement process of the cover plate 3 smoother.

[0032] Specifically, in this embodiment, a second handwheel 16 is provided at the top of the lead screw 15, and the bottom of the lead screw 15 is rotatably installed in the mounting block 8. The second handwheel 16 facilitates the rotation of the lead screw 15.

[0033] Specifically, in this embodiment, two symmetrical insertion slots 13 are provided on the mounting block 8, and two insertion blocks 14 that are adapted to the insertion slots 13 are protruding from the top of the scraper 18. The insertion blocks 14 are fixed in the insertion slots 13 by connecting bolts.

[0034] The structure with plug-in block 14 and plug-in slot 13 makes it easy to quickly replace scraper 18 after it wears out.

[0035] Specifically, in this embodiment, the cover plate 3 is provided with a sliding mounting groove 21 with a side opening. The sliding mounting groove 21 is connected to the through hole in the middle of the cover plate 3. The coating plate 9 is slidably arranged in the sliding mounting groove 21. The opening end of the sliding mounting groove 21 is fixed with a limiting block 22 by a connecting bolt. One side of the limiting block 22 abuts against the coating plate 9.

[0036] With the setting of the limiting block 22, the coating plate 9 can be fixed by limiting it after it is inserted into the sliding mounting groove 21.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat paste application jig comprising a jig body, characterized by: The main body of the device has an installation groove, in which a placement plate is installed. The scraper cloth on the placement plate has multiple slots for placing radiators. The main body of the device is hinged with a U-shaped cover plate, on which a coating plate is inserted. The coating plate has multiple coating holes that match the positions of the installation grooves. A sliding plate is slidably arranged on the cover plate, and a handle is protruding on the sliding plate. A screw is threadedly connected to the sliding plate, and an installation block is rotatably installed at the bottom of the screw. A scraper is detachably connected to the bottom of the installation block. The top of the installation block has two symmetrical vertical limiting rods, both of which are slidably arranged on the sliding plate.

2. The heat paste application jig according to claim 1, wherein: The main body of the device has two symmetrical threaded rods connected by threads. The ends of the two threaded rods that are far apart from each other are provided with a first handwheel, and the ends of the two threaded rods that are close to each other extend into the mounting groove and are equipped with rubber extrusion blocks.

3. The thermal paste application fixture according to claim 1, characterized in that: The main body of the device has two protruding connectors, and the cover plate is rotatably installed between the two connectors.

4. The thermal paste application fixture according to claim 1, characterized in that: The cover plate is provided with two guide rods, and the sliding plate is slidably arranged on the two guide rods.

5. The thermal paste application fixture according to claim 1, characterized in that: The top of the lead screw is equipped with a second handwheel, and the bottom of the lead screw is rotatably mounted in the mounting block.

6. The thermal paste application fixture according to claim 1, characterized in that: The mounting block has two symmetrical insertion slots, and the top of the scraper has two insertion blocks that are adapted to the insertion slots. The insertion blocks are fixed in the insertion slots by connecting bolts.

7. The thermal paste application fixture according to claim 1, characterized in that: The cover plate has a sliding mounting groove with a side opening. The sliding mounting groove is connected to the through hole in the middle of the cover plate. The coating plate is slidably arranged in the sliding mounting groove. The opening end of the sliding mounting groove is fixed with a limit block by a connecting bolt. One side of the limit block abuts against the coating plate.