Power device heat-conducting silicone grease smearing tool

Abstract

The utility model discloses a power device heat-conducting silicone grease smearing tool, which belongs to the technical field of power device production auxiliary equipment and comprises a mounting box body, a fixing plate fixedly mounted at the top of the mounting box body, a power device body arranged at the top of the fixing plate, and a turntable rotatably mounted at the bottom of the fixing plate. Four groups of moving plates are slidably mounted in the fixed plate, connecting plates are fixedly mounted at the tops of the four groups of moving plates, clamps are fixedly mounted on one sides of the four groups of connecting plates, and supporting rods II are fixedly mounted at the bottoms of the four groups of moving plates, so that self-centering clamping of four surfaces of the power device body is realized; the multi-direction clamping mode can stably fix the power device from all angles, no matter how the initial placement position of the power device is, the power device can be automatically adjusted to the center position of the tool and is firmly fixed, the conditions of deviation, shaking and the like of the power device in the heat-conducting silicone grease smearing process are effectively avoided, and the working efficiency is improved. And the smearing operation can be stably carried out.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for power device production, and in particular to a tooling for applying thermal grease to power devices. Background Technology

[0002] In the field of electronics, power devices (such as power transistors and power integrated circuits) generate a significant amount of heat during operation. If this heat cannot be dissipated effectively and promptly, the junction temperature of the power devices will rise, affecting their performance, reliability, and lifespan. Thermal grease, as an excellent thermal interface material, can fill the tiny gaps between power devices and heat dissipation devices (such as heat sinks), greatly improving heat conduction efficiency and ensuring that power devices operate within their normal operating temperature range.

[0003] Currently, there are many shortcomings in the methods of fixing power devices when applying thermal grease. Traditional clamping methods often fail to ensure the positional accuracy of power devices during the application process, and are prone to displacement and shaking. This not only leads to uneven application of thermal grease, affecting heat dissipation, but may also damage the power devices. Moreover, different sizes of power devices require frequent adjustment of the clamping device, which is cumbersome and inefficient. Therefore, we propose a thermal grease application fixture for power devices to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a thermal grease application tool for power devices to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A power device thermal grease application fixture includes: a mounting box; a fixing plate fixedly mounted on the top of the mounting box; a power device body disposed on the top of the fixing plate; a turntable rotatably mounted on the bottom of the fixing plate; four sets of movable plates slidably mounted inside the fixing plate; a connecting plate fixedly mounted on the top of each of the four sets of movable plates; a clamp fixedly mounted on one side of each of the four sets of connecting plates; a support rod II fixedly mounted on the bottom of each of the four sets of movable plates; four sets of support rod I hinged to one side of the turntable; the four sets of support rod I are hinged to their corresponding support rod II; four sets of guide rods fixedly mounted on the top of the fixing plate; and a thermal grease application positioning plate slidably mounted on the outer side of each of the four sets of guide rods.

[0007] Preferably, a rotating rod is rotatably mounted inside the mounting box, a worm gear is fixedly mounted on the outer side of the rotating rod, a rotating shaft is fixedly mounted on the bottom of the turntable, a worm wheel is fixedly mounted on the outer side of the rotating shaft, and the bottom of the rotating shaft is rotatably mounted on the bottom inner wall of the mounting box.

[0008] Preferably, the fixed plate has four sets of T-shaped slide rails inside, and the four sets of movable plates are slidably installed in the corresponding T-shaped slide rails. The silicone grease application positioning plate is adapted to the power device body, and the four sides of the power device body abut against the corresponding clamps.

[0009] Preferably, a motor is fixedly installed on one side of the mounting box, and one end of the rotating rod is fixedly installed on the output end of the motor.

[0010] Preferably, the worm gear and the worm are meshed, and the worm gear and the worm are installed inside the mounting housing.

[0011] Preferably, four sets of support legs are fixedly installed at the bottom of the mounting box, and the bottom of each of the four sets of support legs is provided with an anti-slip pad.

[0012] In this invention, a power device thermal grease application fixture is provided with four sets of guide rods on the top of the fixed plate. This allows for more precise engagement of the grease application positioning plate with the power device body, enabling more accurate grease application. This ensures that the grease is accurately applied to the key parts of the power device that require heat dissipation, strictly controlling the application range and thickness to avoid applying grease to unnecessary areas or applying too much or too little grease in certain areas. This results in more precise and high-quality grease application to the power device, maximizing the heat dissipation performance of the thermal grease.

[0013] This utility model has a reasonable structural design. A motor drives a rotating rod and a worm gear to rotate. The worm wheel and worm gear are hinged together, which in turn drives the worm wheel and rotating shaft to rotate, thus rotating the turntable. This, in turn, causes four sets of support rods to swing. The movement of the second set of support rods is restricted by a T-shaped slide rail between the moving plate and the fixed plate. Driven by the first set of support rods, the four sets of moving plates move together or apart within the T-shaped slide rail with the same stroke. Corresponding connecting plates then drive corresponding clamps to self-center the power device body in four directions. This multi-directional clamping method can stably fix the power device from all angles. Regardless of the initial placement of the power device, it can be automatically adjusted to the center position of the fixture and firmly fixed, effectively preventing the power device from shifting or shaking during the application of thermal grease, ensuring stable application. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a power device thermal grease application fixture proposed in this utility model.

[0015] Figure 2This is a cross-sectional view of a power device thermal grease application fixture proposed in this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the worm gear, worm, and shaft of a power device thermal grease application fixture proposed in this utility model.

[0017] Figure 4 This is a partial three-dimensional structural diagram of a power device thermal grease application fixture proposed in this utility model.

[0018] In the diagram: 1. Mounting housing; 2. Support leg; 3. Motor; 4. Fixing plate; 5. Guide rod; 6. Silicone grease application positioning plate; 7. Power device body; 8. Rotating rod; 9. Worm gear; 10. Rotating shaft; 11. Worm wheel; 12. Support rod one; 13. Turntable; 14. Support rod two; 15. Moving plate; 16. Connecting plate; 17. Fixture. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-4 A power device thermal grease application fixture includes: a mounting box 1, a fixing plate 4 fixedly mounted on the top of the mounting box 1, a power device body 7 mounted on the top of the fixing plate 4, a turntable 13 rotatably mounted on the bottom of the fixing plate 4, four sets of movable plates 15 slidably mounted inside the fixing plate 4, a connecting plate 16 fixedly mounted on the top of each of the four sets of movable plates 15, a clamp 17 fixedly mounted on one side of each of the four sets of connecting plates 16, a second support rod 14 fixedly mounted on the bottom of each of the four sets of movable plates 15, four sets of first support rods 12 hinged to one side of the turntable 13, the four sets of first support rods 12 being hinged to the corresponding second support rods 14, four sets of guide rods 5 fixedly mounted on the top of the fixing plate 4, and a grease application positioning plate 6 slidably mounted on the outer side of the four sets of guide rods 5.

[0021] In this embodiment, a rotating rod 8 is rotatably mounted inside the mounting box 1, and a worm gear 9 is fixedly mounted on the outside of the rotating rod 8. A rotating shaft 10 is fixedly mounted on the bottom of the turntable 13, and a worm wheel 11 is fixedly mounted on the outside of the rotating shaft 10. The bottom of the rotating shaft 10 is rotatably mounted on the bottom inner wall of the mounting box 1. Due to the self-locking characteristics of the worm wheel 11 and the worm gear 9, this reverse rotation can be effectively prevented, thereby ensuring the stability of the device's state.

[0022] In this embodiment, the fixed plate 4 has four sets of T-shaped slide rails inside, and four sets of movable plates 15 are slidably installed in the corresponding T-shaped slide rails. The silicone grease positioning plate 6 is adapted to the power device body, and the four sides of the power device body 7 are in contact with the corresponding clamps 17. The structural design of the T-shaped slide rails ensures that the movable plates 15 will not shift left or right or sway up and down during the sliding process, thus ensuring the linearity and stability of the movement of the movable plates 15.

[0023] In this embodiment, a motor 3 is fixedly installed on one side of the mounting box 1, and one end of the rotating rod 8 is fixedly installed on the output end of the motor 3, which can provide stable and continuous power to the rotating rod 8.

[0024] In this embodiment, the worm gear 11 and the worm 9 are meshed together. The worm gear 11 and the worm 9 are installed inside the mounting housing 1, which improves the reliability of clamping the power device body 7 and avoids displacement or damage to the power device due to accidental loosening.

[0025] In this embodiment, four sets of support legs 2 are fixedly installed at the bottom of the mounting box 1. The bottom of each of the four sets of support legs 2 is provided with anti-slip pads, which provides a stable support structure for the entire device.

[0026] In this embodiment, during use, the starting motor 3 drives the rotating rod 8 and the worm gear 9 to rotate. The worm wheel 11 is hinged to the worm gear 9, which in turn drives the worm wheel 11 and the rotating shaft 10 to rotate, thereby driving the turntable 13 to rotate. This in turn drives the four sets of support rods 12 to swing. The movement of the second support rod 14 is restricted by the T-shaped slide rail of the moving plate 15 and the fixed plate 4. Under the transmission of the first support rod 12, the four sets of moving plates 15 move together or apart within the T-shaped slide rail with the same stroke. Then, the corresponding connecting plate 16 drives the corresponding clamp 17 to perform four-way self-centering clamping on the four sides of the power device body 7. By setting four sets of guide rods 5 on the top of the fixed plate 4, the silicone grease application positioning plate 6 can be more accurately engaged with the power device body 7, thereby achieving more precise silicone grease application to the power device.

[0027] The above provides a detailed description of the thermal grease application fixture for power devices provided by this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are only intended to aid in understanding the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A power device heat-conducting silicone grease application tool, characterized by, The utility model relates to a power device installation box, including: The top of mounting box (1) is fixedly installed with fixed plate (4), the top of fixed plate (4) is provided with power device body (7), the bottom of fixed plate (4) is rotatably installed with rotating disc (13), the inside of fixed plate (4) is slidably installed with four groups of moving plate (15), the top of four groups of moving plate (15) is fixedly installed with connecting plate (16) all, the one side of four groups of connecting plate (16) is fixedly installed with clamp (17) all, the bottom of four groups of moving plate (15) is fixedly installed with support pole two (14) all, the one side of rotating disc (13) is hinged with four groups of support pole one (12), four groups of support pole one (12) are hinged between corresponding support pole two (14), the top of fixed plate (4) is fixedly installed with four groups of guide rod (5), the outside of four groups of guide rod (5) is slidably installed with silicone grease smearing positioning plate (6).

2. The power device heat-conducting silicone grease coating tool of claim 1, wherein, The inside of mounting box (1) is rotatably installed with rotating rod (8), the outside of rotating rod (8) is fixedly installed with worm (9), the bottom of rotating disc (13) is fixedly installed with rotating shaft (10), the outside of rotating shaft (10) is fixedly installed with worm wheel (11), the bottom of rotating shaft (10) is rotatably installed on the bottom inner wall of mounting box (1).

3. The power device heat-conducting silicone grease coating tool of claim 1, wherein, The inside of fixed plate (4) is provided with four groups of T-shaped slide rails, four groups of moving plate (15) are slidably installed in corresponding T-shaped slide rails, silicone grease smearing positioning plate (6) is adapted to power piece body, the four sides of power device body (7) are abutted between corresponding clamp (17).

4. The power device heat-conducting silicone grease coating tool of claim 2, wherein, The one side of mounting box (1) is fixedly installed with motor (3), one end of rotating rod (8) is fixedly installed on the output end of motor (3).

5. The power device heat-conducting silicone grease coating tool of claim 2, wherein, Worm wheel (11) and worm (9) are engaged, and worm wheel (11) and worm (9) are arranged in the inside of mounting box (1).

6. The power device heat-conducting silicone grease coating tool of claim 1, wherein, The bottom of mounting box (1) is fixedly installed with four groups of support legs (2), and the bottom of four groups of support legs (2) is provided with antiskid pad.

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