Sample preparation device for blade coating performance test of heat-conducting silicone grease

Abstract

The utility model discloses a heat-conducting silicone grease blade coating performance test sample preparation device which comprises an object placing mechanism, an object placing plate is installed on the upper end face of the object placing mechanism in a sliding mode, a driving device is installed above a workbench in a sliding mode, the driving device comprises a driving mechanism, a blade coating device is installed on one side of the driving mechanism in a sliding mode, and a sample preparation device is installed on the other side of the blade coating device. The heat-conducting silicone grease coating device comprises a workbench, a driving mechanism is arranged on the workbench, supporting plates are installed at the two ends of the driving mechanism respectively, the bottom ends of the adjacent sides of the two supporting plates are synchronously and slidably connected with the two sides of the workbench respectively, the blade coating device comprises a shell, and two sliding plates are symmetrically and slidably installed in the shell. And manual blade coating is replaced by mechanical blade coating, so that the blade coating stability of the heat-conducting silicone grease can be improved, the phenomenon of deviation of a test result is avoided, and the scraper can be quickly replaced after failure.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal grease testing, in particular to a thermal grease scraping performance testing and sample preparation device. Background Art

[0002] Thermal grease is composed of special thermally conductive fillers and a silicone matrix. It can effectively transfer heat and is widely used in consumer electronic devices, power electronic devices, lighting equipment, automotive electronic devices, aerospace, communication equipment, and instrumentation. At present, thermal grease is mainly applied by scraping, and the quality of scraping performance directly affects its use effect. For example, in terms of heat conduction, good scraping performance can ensure that the thermal grease forms a uniform thin layer between the heat source and the heat dissipation component, which can minimize thermal resistance and enable heat to be conducted from the heat-generating component to the heat dissipation component more efficiently. On the contrary, if the scraping is uneven, there will be local uneven thickness. The thick area has a larger thermal resistance, which hinders heat conduction, and it may also overflow due to squeezing during use, contaminating surrounding components; thin areas may not be able to fully fill the gap, resulting in poor contact, which also reduces the efficiency of heat conduction. In terms of installation convenience,

[0003] Thermal grease with good spreadability is easy to apply and smooth, allowing installation workers to complete the installation process quickly and accurately, improving work efficiency. Conversely, thermal grease that is difficult to apply consumes more time and effort, increasing installation costs. Therefore, the spreadability of thermal grease is a crucial parameter. However, laboratory testing of spreadability is largely manual, and the pressure, speed, and angle of application during this process can directly affect the test results, leading to biased results. Utility Model Content

[0004] The utility model aims to provide a thermal grease scraping performance test sample preparation device, which has the advantage of uniform scraping and solves the problem of deviation in test results caused by manual scraping of thermal grease.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sample preparation device for testing the scraping performance of thermal grease, comprising a placement mechanism, a placement plate being slidably installed on the upper end surface of the placement mechanism, and a driving device being slidably installed above the workbench, the driving device comprising a driving mechanism, a scraping device being slidably installed on one side of the driving mechanism, and support plates being installed at both ends of the driving mechanism, the bottom ends of the two adjacent sides of the support plates being synchronously slidably connected to the two sides of the workbench respectively, the scraping device comprising a shell, two slides being symmetrically slidably installed in the shell, and a rotating motor for driving the slides to slide up and down in the shell being provided at the top of the shell, a card plate fixed to the sliding mechanism of the driving mechanism being installed on the side of the shell facing the driving mechanism, and a scraping mechanism being installed at the bottom ends of the two slides.

[0006] Preferably, the two scraping mechanisms include a horizontal plate, U-shaped plates are installed at both ends of the horizontal plate, and a square column is slidably installed under the horizontal plate, a fixed plate is slidably installed in the square column, two limit columns embedded in the U-shaped plate are symmetrically installed on the top of the fixed plate, and convex plates are constructed at both ends of the fixed plate, bolts are installed on both sides of the top of the square column, there are two square columns, and long plates are slidably fitted on the bottom ends of the two square columns.

[0007] Preferably, both ends of the U-shaped plate are arranged downward, and the square column is slidably embedded in the U-shaped plate.

[0008] Preferably, the square column is slidably connected to the limiting column, each of the bolts is slidably connected to the square column, and the bottom end of each bolt spirally extends into the convex plate.

[0009] Preferably, a groove for the square column to fit into is provided in the top of the long board, and both sides of the long board fit the inner wall of the square column, and convex strips at both ends of the U-shaped board are provided on both sides of the lower end surface of the long board.

[0010] Preferably, a first scraper and a second scraper are respectively installed at the bottom ends of the two long plates, the first scraper is L-shaped, and one side of the first scraper is inclined and the other side is vertically arranged.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model is equipped with a workbench, a storage plate, a driving mechanism, a support plate, a shell, a slide plate, a rotating motor and a scraping mechanism. The thermal grease is squeezed onto the surface of the storage plate slidably mounted on the workbench. The two scraping mechanisms are then slid above the storage plate by the supporting plate. The rotary motor then drives the slide plate to slide in the shell, lowering the two scraping mechanisms above the storage plate. The driving mechanism drives the shell to slide, and the scraping mechanism scrapes the thermal grease. The scraping is performed by the machine instead of by manual labor, which can improve the stability of the thermal grease scraping and avoid deviations in the test results.

[0013] 2. The utility model is provided with a U-shaped plate, a square column, a fixed plate, a convex plate, a bolt, a long plate, a first scraper and a second scraper. The thermal grease can be scraped back and forth by the first scraper and the second scraper at the bottom end of the long plate so that the scraping is even. The bolt is rotated, and the bolt and the square column are slidably matched, so that the square column sleeved on the outside of the fixed plate moves up and down, and the long plate fitted between the square column and the U-shaped plate can be pulled out, and it can be quickly replaced after the scraper fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the middle scraping device;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of the middle scraping mechanism;

[0017] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure at center A.

[0018] The reference numerals and names in the figures are as follows:

[0019] 1. Storage mechanism; 101. Workbench; 102. Storage plate; 2. Driving device; 201. Driving mechanism; 202. Support plate; 3. Scraping device; 301. Housing; 302. Slide plate; 303. Rotating motor; 304. Clamping plate; 4. Scraping mechanism; 401. Horizontal plate; 402. U-shaped plate; 403. Square column; 404. Fixed plate; 405. Limiting column; 406. Protruding plate; 407. Bolt; 5. Long plate; 6. First scraper; 7. Second scraper. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0023] See also Figures 1 to 4, the utility model provides an embodiment: a thermal grease scraping performance test sample preparation device, including a placement mechanism 1, the placement mechanism 1 upper end surface is slidably mounted with a placement plate 102, and a driving device 2 is slidably mounted above the workbench 101, the driving device 2 includes a driving mechanism 201, the driving mechanism 201 is a common screw drive mechanism, which is a prior art and will not be described in detail here, a scraping device 3 is slidably mounted on one side of the driving mechanism 201, and support plates 202 are installed at both ends of the driving mechanism 201, and the bottom ends of the two adjacent sides of the two support plates 202 are respectively connected to the two sides of the workbench 101 Synchronous sliding connection, the scraping device 3 includes a shell 301, two slides 302 are symmetrically slidably installed in the shell 301, and a rotating motor 303 is provided on the top of the shell 301 to drive the slides 302 to slide up and down in the shell 301, and a card plate 304 fixed to the sliding mechanism of the driving mechanism 201 is installed on the side of the shell 301 facing the driving mechanism 201, and the bottom ends of the two slides 302 are installed with a scraping mechanism 4, and the two scraping mechanisms 4 include a horizontal plate 401, and U-shaped plates 402 are installed at both ends of the horizontal plate 401, and a square column 403 is slidably installed under the horizontal plate 401. A fixed plate 404 is slidably installed in the column 403, and two limiting columns 405 embedded in the U-shaped plate 402 are symmetrically installed on the top of the fixed plate 404, and convex plates 406 are constructed at both ends of the fixed plate 404. Bolts 407 are installed on both sides of the top of the square column 403. There are two square columns 403. The bottom ends of the two square columns 403 are slidably fitted with a long plate 5. The two ends of the U-shaped plate 402 are set downward, and the square columns 403 are slidably embedded in the U-shaped plate 402. The square columns 403 are slidably connected to the limiting columns 405, and each bolt 407 is slidably connected to the square column 403, and the bottom end of each bolt 407 is screwed It rotates and extends into the convex plate 406, and the top of the long plate 5 is concavely provided with a groove for the square column 403 to be embedded, and the two sides of the long plate 5 fit the inner wall of the square column 403, and the lower end surface of the long plate 5 is provided with a card and convex strips at both ends of the U-shaped plate 402. During implementation, the upper end surface of the long plate 5 fits the lower end surface of the square column 403, and the two ends of the U-shaped plate 402 fit the lower end surface of the long plate 5. The long plate 5 is clamped and fixed by the U-shaped plate 402 and the square column 403. The bottom ends of the two long plates 5 are respectively installed with a first scraper 6 and a second scraper 7. The first scraper 6 is L-shaped, and one side of the first scraper 6 is inclined and the other side is vertically set.

[0024] Working principle: During the operation of the present invention, the thermal grease is squeezed onto the storage plate 102, and the sliding support plate 202 moves the scraping device 3 to above the storage plate 102. The sliding plate 302 is then driven to slide in the shell 301 by the rotating motor 303, and the two scraping mechanisms 4 are lowered to above the storage plate 102. The shell 301 is driven to slide by the driving mechanism 201, and the first scraper 6 and the second scraper 7 passing through the bottom end of the long plate 5 can scrape the thermal grease back and forth to ensure uniform scraping. The bolt 407 is rotated, and the bolt 407 is slidably matched with the square column 403. The limiting column 405 limits the fixed plate 404, so that the square column 403 sleeved on the outside of the fixed plate 404 moves up and down, and the long plate 5 fitted between the square column 403 and the U-shaped plate 402 can be pulled out for replacement.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A sample preparation device for testing the coating performance of thermal conductive silicone grease, comprising a placement mechanism (1), characterized in that: The upper end surface of the storage mechanism (1) is slidably mounted with a storage plate (102), and a driving device (2) is slidably mounted above the workbench (101), the driving device (2) comprising a driving mechanism (201), a scraping device (3) being slidably mounted on one side of the driving mechanism (201), and support plates (202) being mounted on both ends of the driving mechanism (201), the bottom ends of the two adjacent sides of the support plates (202) being synchronously slidably connected to the two sides of the workbench (101), and the scraping device (3) being slidably mounted on one side of the driving mechanism (201). The device (3) comprises a housing (301), two slides (302) are symmetrically and slidably mounted in the housing (301), and a rotating motor (303) is provided at the top of the housing (301) for driving the slides (302) to slide up and down in the housing (301), a clamping plate (304) fixed to the sliding mechanism of the driving mechanism (201) is installed on the side of the housing (301) facing the driving mechanism (201), and a scraping mechanism (4) is installed at the bottom ends of the two slides (302).

2. A thermal conductive silicone grease scraping performance test sample preparation device according to claim 1, characterized in that: The two scraping mechanisms (4) each comprise a transverse plate (401), both ends of the transverse plate (401) are provided with a U-shaped plate (402), and a square column (403) is slidably provided below the transverse plate (401), a fixed plate (404) is slidably provided inside the square column (403), two limiting columns (405) embedded in the U-shaped plate (402) are symmetrically provided at the top of the fixed plate (404), and convex plates (406) are provided at both ends of the fixed plate (404), bolts (407) are provided on both sides of the top of the square column (403), two square columns (403) are provided, and a long plate (5) is slidably fitted at the bottom ends of the two square columns (403).

3. A thermal conductive silicone grease scraping performance test sample preparation device according to claim 2, characterized in that: The two ends of the U-shaped plate (402) are arranged downward, and the square column (403) is slidably embedded in the U-shaped plate (402).

4. A thermal conductive silicone grease scraping performance test sample preparation device according to claim 2, characterized in that: The square column (403) is slidably connected to the limiting column (405), each of the bolts (407) is slidably connected to the square column (403), and the bottom end of each bolt (407) spirally extends into the convex plate (406).

5. The thermal conductive silicone grease scraping performance test sample preparation device according to claim 2, characterized in that: The top of the long plate (5) is concavely provided with a groove for the square column (403) to be embedded, and both sides of the long plate (5) are in contact with the inner wall of the square column (403). Both sides of the lower end surface of the long plate (5) are provided with convex strips at both ends of the clamp and the U-shaped plate (402).

6. The thermal conductive silicone grease scraping performance test sample preparation device according to claim 2, characterized in that: A first scraper (6) and a second scraper (7) are respectively installed at the bottom ends of the two long plates (5); the first scraper (6) is L-shaped, and one side of the first scraper (6) is tilted and the other side is vertically arranged.

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