Device for measuring oil separation rate of heat-conducting silicone grease

Abstract

The invention discloses a heat conduction silicone grease oil separation rate determination device, which comprises a base, a ground glass sheet 1 and a ground glass sheet 2, the top of the base is provided with an inner groove, the ground glass sheet 1 is combined with the inner groove, the top of the base is fixedly provided with a top frame through a support frame, the top of the top frame is in screwed connection with a driving rod, and the driving rod is connected with the ground glass sheet 1. The bottom of the driving rod is connected with a pushing rod in a clamped mode, and a limiting assembly for limiting axial deviation of the pushing rod is arranged between the pushing rod and the top frame. In the application, the pressing block stably abuts against the top of the frosted glass sheet II under the action of the spring, the clamping assembly completes combined clamping of the frosted glass sheet I and the frosted glass sheet II at the moment, the positioning rod is rotated to be separated from the outer surface wall of the fixing frame at the moment, and the whole supporting frame and the suction cup are pushed to slide along the top of the frosted glass sheet II until complete separation; at the moment, the ground glass sheet I and the ground glass sheet II can be independently separated from the device, so that the ground glass sheet I and the ground glass sheet II can be manually and conveniently transferred.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring the oil separation rate of thermal conductive silicone grease, and particularly to a device for measuring the oil separation rate of thermal conductive silicone grease. Background Art

[0002] Thermal conductive silicone grease has excellent thermal conductivity, good electrical insulation and high thermal conductivity, so it has been widely used, mainly in electronic devices such as power devices, transistors, electron tubes and CPUs, so as to ensure the stability of the electrical performance of electronic instruments and meters. The oil separation rate of thermal conductive silicone grease can judge whether the performance of thermal conductive silicone grease is good. Therefore, it is necessary to measure the oil separation rate of thermal conductive silicone grease to detect whether it is qualified.

[0003] Chinese Patent Publication No. CN211697591U, published on October 16, 2020, discloses a device for measuring the oil separation rate of thermal conductive silicone grease, including a first heat-resistant glass, a first bolt and a second bolt. A second heat-resistant glass is arranged directly above the first heat-resistant glass, a connecting rod is arranged directly above the second heat-resistant glass, and first through holes and second through holes are formed in both the first heat-resistant glass and the second heat-resistant glass.

[0004] For existing devices for measuring the oil separation rate of thermal conductive silicone grease such as the above, most of them fix one set of frosted glass sheets on the base, and push the other set of frosted glass sheets through the arranged pushing assembly, so that the two sets of frosted glass sheets are attached and squeeze the thermal conductive silicone. Finally, the whole device is transferred to the oven. In the specific implementation process, the whole device has a certain volume, and it is inconvenient for people to transfer the whole device between the oven and the workbench, which is not conducive to the rapid progress of the measurement process. Therefore, it is urgent to propose a corresponding device for measuring the oil separation rate of thermal conductive silicone grease to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for measuring the oil separation rate of thermal conductive silicone grease to solve the above problems.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A device for measuring the oil separation rate of thermal conductive silicone grease, comprising a base, a first ground glass sheet and a second ground glass sheet. An inner groove is formed at the top of the base, and the first ground glass sheet is combined with the inner groove. A top frame is fixedly installed at the top of the base through a support frame. A driving rod is screwed to the top of the top frame. The bottom of the driving rod is snap-connected with a push rod, and a limiting component for restricting the axial offset of the push rod is arranged between the push rod and the top frame. A connecting sleeve is slidably connected to the inner wall of the push rod, and a positioning component for positioning the connecting sleeve is arranged on the inner wall of the push rod. The bottom of the connecting sleeve is detachably connected to the second ground glass sheet. A clamping component for clamping the combination of the first ground glass sheet and the second ground glass sheet is arranged at the top of the base.

[0008] Preferably, a fixing frame is fixedly installed at the top of the base. The outer wall of the longitudinal end of the fixing frame is slidably connected to the inner wall of the vertical end of the support frame. A positioning rod is screwed to the inner wall of the vertical end of the support frame, and the open end of the positioning rod abuts against the outer wall of the fixing frame.

[0009] Preferably, a clamping sleeve is fixedly installed at the top of the push rod, and a convex disc is fixedly installed at the bottom of the driving rod. The convex disc is snap-connected to the inner wall of the clamping sleeve.

[0010] Preferably, the limiting component includes a sliding sleeve fixedly installed on the outer wall of the push rod. The inner wall of the sliding sleeve is slidably connected to the outer wall of the vertical end of the top frame. The top frame and the horizontal end of the support frame are distributed at a right angle.

[0011] Preferably, a top block is screwed to the bottom of the connecting sleeve. A suction cup is fixedly connected to the bottom of the top block. The suction cup is suctioned to the top of the second ground glass sheet. A limiting block is fixedly connected to the horizontal end of the support frame through the connecting sleeve. The positioning component includes a locking rod. The outer wall of the locking rod is screwed to the inner wall of the push rod, and the outer wall of the locking rod abuts against the outer wall of the connecting sleeve.

[0012] Preferably, a limiting ring is fixedly installed at the top of the connecting sleeve. The bottom of the push rod has a horizontal extension. The outer wall of the arc end of the limiting ring is slidably connected to the inner wall of the push rod. The vertical end of the connecting sleeve is slidably matched with the horizontal extension.

[0013] Preferably, the clamping component includes a bottom block. The bottom block is snap-connected to the top of the base. A vertical seat is fixedly installed at the top of the bottom block. A screw rod is fixedly installed at the top of the vertical seat. A nut sleeve is screwed to the outer wall of the screw rod. A connecting bin is fixedly installed on the outer wall of the nut sleeve. A pressing block is slidably matched with the bottom of the connecting bin, and a spring is fixedly installed between the top of the pressing block and the connecting bin.

[0014] Preferably, a card slot communicating with the inner groove is formed at the top of the base. The bottom block is snap-connected to the card slot. The bottom of the first ground glass sheet is lapped on the top of the bottom block.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. In the present application, the clamping assembly is placed above the base, and the bottom block is combined with the card slot. At this time, the frosted glass piece 1 is combined with the inner groove. At this time, the bottom of the frosted glass piece 1 is abutted against the top of the bottom block. The thermal grease is applied to the frosted glass piece 1, and the frosted glass piece 2 3 is sucked onto the suction cup. The setting of the connecting sleeve and the limit block can enable the frosted glass piece 2 to quickly determine the position. The driving rod is rotated to move it downward. The convex disc at the bottom of the driving rod rotates with the inside of the card slot. At the same time, the sliding sleeve on the outside of the push rod slides with the vertical end of the top frame, so that the push rod moves downward smoothly. The push rod is linked to the frosted glass piece 2 through the cooperation of the connecting sleeve and the top block until the frosted glass piece 2 is attached to the frosted glass piece 1 and the extrusion of the thermal grease is completed. Press, at this time keep the position of the frosted glass piece stationary, manually rotate the connecting chamber, the connecting chamber drives the screw sleeve to screw together with the screw, the connecting chamber drives the screw sleeve downward and switches the axial position at the same time, the pressure block gradually contacts the frosted glass piece 2 and squeezes the spring until the connecting chamber is completely placed above the frosted glass piece 2. At this time, the pressure block is stably abutted against the top of the frosted glass piece 2 under the action of the spring. At this time, the clamping assembly completes the combined clamping of the frosted glass piece 1 and the frosted glass piece 2. At this time, rotate the positioning rod to separate it from the outer wall of the fixed frame, push the overall support frame, and the suction cup slides along the top of the frosted glass piece 2 until it is completely detached. At this time, the frosted glass piece 1 and the frosted glass piece 2 can be separated from the device independently to facilitate convenient manual transfer.

[0017] 2. In the present application, the locking rod is manually rotated to separate its open end from the outer wall of the connecting sleeve. At this time, the connecting sleeve loses its axial constraint and can be pulled vertically to the specified position and then fixed by the locking rod. In this way, when the driving rod pushes a constant distance, the vertical position of the connecting sleeve can be adjusted to match different extrusion requirements. When the locking rod is rotated to make its open end close to the outer wall of the connecting sleeve, the thermal grease can be extruded. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It shows a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the card slot structure provided in an embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram of a compact structure according to an embodiment of the present invention is shown;

[0021] Figure 4 A schematic structural diagram of a fixing frame provided in an embodiment of the present invention is shown;

[0022] Figure 5Shows a schematic structural diagram of a locking rod provided according to an embodiment of the present invention.

[0023] Legend description:

[0024] 1. Base; 2. First frosted glass sheet; 3. Second frosted glass sheet; 4. Support frame; 5. Top frame; 6. Sliding sleeve; 7. Driving rod; 8. Pushing rod; 9. Vertical base; 10. Positioning rod; 11. Fixed frame; 12. Inner groove; 13. Bottom block; 14. Card slot; 15. Pressing block; 16. Connection bin; 17. Spring; 18. Nut sleeve; 19. Screw rod; 20. Connection sleeve; 21. Convex disc; 22. Card sleeve; 23. Limit ring; 24. Top block; 25. Locking rod; 26. Suction cup; 27. Connection sleeve; 28. Limit block. Specific implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] Please refer to Figures 1-5 , the present invention provides a technical solution:

[0027] A device for measuring the oil separation rate of thermal conductive silicone grease, including a base 1, a first frosted glass sheet 2 and a second frosted glass sheet 3. An inner groove 12 is opened at the top of the base 1. The first frosted glass sheet 2 is combined with the inner groove 12. A top frame 5 is fixedly installed on the top of the base 1 through a support frame 4. A driving rod 7 is screwed to the top of the top frame 5. The bottom of the driving rod 7 is snap-connected to a pushing rod 8. And a limiting component for restricting the axial offset of the pushing rod 8 is provided between the pushing rod 8 and the top frame 5. A connection sleeve 20 is slidably connected to the inner wall of the pushing rod 8. And a positioning component for positioning the connection sleeve 20 is provided on the inner wall of the pushing rod 8. The bottom of the connection sleeve 20 is detachably connected to the second frosted glass sheet 3. A clamping component for clamping the combination of the first frosted glass sheet 2 and the second frosted glass sheet 3 is provided on the top of the base 1;

[0028] Place the clamping assembly above the base 1 and make the bottom block 13 engage with the card slot 14. At this time, combine the first frosted glass sheet 2 with the inner groove 12. At this time, the bottom of the first frosted glass sheet 2 abuts against the top of the bottom block 13. Apply thermal grease to the first frosted glass sheet 2, and then suck the second frosted glass sheet 3 onto the suction cup 26. The connection sleeve 27 and the limit block 28 can quickly position the second frosted glass sheet 3. Rotate the drive rod 7 to move it downward. The convex disk 21 at the bottom of the drive rod 7 is rotationally matched with the inside of the bushing 22. At the same time, the sliding sleeve 6 on the outside of the push rod 8 is slidably matched with the vertical end of the top frame 5, so that the push rod 8 moves smoothly downward. The push rod 8 drives the second frosted glass sheet 3 through the cooperation of the connection sleeve 20 and the top block 24 until the second frosted glass sheet 3 is attached to the first frosted glass sheet 2 and the extrusion of the thermal grease is completed. At this time, keep the position of the second frosted glass sheet 3 unchanged, and manually rotate the connection bin 16. The connection bin 16 drives the screw sleeve 18 to engage with the screw rod 19. The connection bin 16 drives the screw sleeve 18 to move downward while performing an axial position switch. The pressing block 15 gradually contacts the second frosted glass sheet 3 and compresses the spring 17 until the connection bin 16 is completely placed above the second frosted glass sheet 3. At this time, the pressing block 15 is stably abutted against the top of the second frosted glass sheet 3 under the action of the spring 17. At this time, the clamping assembly completes the combined clamping of the first frosted glass sheet 2 and the second frosted glass sheet 3. At this time, rotate the positioning rod to disengage it from the outer wall of the fixed frame 11, and push the overall support frame. The suction cup slides along the top of the second frosted glass sheet 3 until it is completely separated. At this time, the first frosted glass sheet 2 and the second frosted glass sheet 3 can be independently separated from the device for convenient manual transfer, and then the extrusion of the thermal grease can be continued.

[0029] Specifically, as Figure 1 shown in Figure 4 Figure, a fixed frame 11 is fixedly installed on the top of the base 1. The outer wall of the longitudinal end of the fixed frame 11 is slidably connected to the inner wall of the vertical end of the support frame 4. Therefore, a positioning rod 10 is screwed to the inner wall of the vertical end of the support frame 4. The open end of the positioning rod 10 abuts against the outer wall of the fixed frame 11. Manually rotate the locking rod 25 to disengage its open end from the outer wall of the connection sleeve 20. At this time, the connection sleeve 20 loses axial constraint. After vertically pulling the connection sleeve 20 to a specified position, it can be fixed by the locking rod 25. In this way, under the condition that the pushing distance of the drive rod 7 is constant, the vertical position of the connection sleeve 20 can be adjusted to match different extrusion requirements, thereby improving the use effect of the device for measuring the oil separation rate of thermal grease.

[0030] Specifically, as Figure 4 shown in Figure 5As shown, a sleeve 22 is fixedly installed on the top of the push rod 8, and a cam 21 is fixedly installed on the bottom of the drive rod 7. The cam 21 is engaged with the inner wall of the sleeve 22. The limiting assembly includes a sleeve 6 fixedly installed on the outer wall of the push rod 8. The inner wall of the sleeve 6 is slidably connected to the outer wall of the vertical end of the top frame 5. The cam 21 at the bottom of the drive rod 7 rotates with the inside of the sleeve 22. At the same time, the sleeve 6 on the outside of the push rod 8 slides with the vertical end of the top frame 5, so that the push rod 8 descends smoothly. The horizontal end of the top frame 5 and the support frame 4 are distributed at ninety degrees. In this way, the stroke of the push rod 8 can be limited. That is, after the sleeve 6 is in contact with the top of the support frame 4, the drive rod 7 can no longer drive the push rod 8 to rotate, thereby avoiding excessive pushing of the drive rod 7.

[0031] Specifically, such as Figure 4 and Figure 5 As shown, the bottom of the connecting sleeve 20 is screwed together with a top block 24, and the bottom of the top block 24 is fixedly connected to a suction cup 26. The suction cup 26 is sucked onto the top of the frosted glass piece 23. The horizontal end of the support frame 4 is fixedly connected to the limiting block 28 through the connecting sleeve 27. The positioning component includes a locking rod 25. The outer wall of the locking rod 25 is screwed together with the inner wall of the push rod 8, and the outer wall of the locking rod 25 abuts against the outer wall of the connecting sleeve 20. The locking rod 25 is rotated to make its open end close to the outer wall of the connecting sleeve 20, so that the positioning of the connecting sleeve 20 is achieved by friction. A limiting ring 23 is fixedly installed on the top of the connecting sleeve 20, and a horizontal extension is provided at the bottom of the push rod 8. The outer wall of the arc end of the limiting ring 23 is slidably connected to the inner wall of the push rod 8, and the vertical end of the connecting sleeve 20 slides with the horizontal extension, thereby ensuring the vertical and axial activity characteristics of the connecting sleeve 20 while preventing the connecting sleeve 20 from completely separating from the push rod 8.

[0032] Specifically, such as Figure 2 and Figure 3As shown, the clamping assembly includes a bottom block 13, which is snap-connected to the top of the base 1. A vertical block 9 is fixedly installed on the top of the bottom block 13, and a screw rod 19 is fixedly installed on the top of the vertical block 9. A screw sleeve 18 is screwed on the outer wall of the screw rod 19. A connecting bin 16 is fixedly installed on the outer wall of the screw sleeve 18. A pressing block 15 is slidably fitted to the bottom of the connecting bin 16, and a spring 17 is fixedly installed between the top of the pressing block 15 and the connecting bin 16. Rotate the connecting bin 16, the connecting bin 16 drives the screw sleeve 18 to be screwed with the screw rod 19, the connecting bin 16 drives the screw sleeve 18 to move downward while performing an axial position switch, the pressing block 15 gradually contacts the second frosted glass sheet 3 and compresses the spring 17 until the connecting bin 16 is completely placed above the second frosted glass sheet 3. At this time, the pressing block 15 is stably abutted against the top of the second frosted glass sheet 3 under the action of the spring 17. At this time, the first frosted glass sheet 2 and the second frosted glass sheet 3 are clamped together by the clamping assembly. A card slot 14 communicating with the inner groove 12 is formed in the top of the base 1, and the bottom block 13 is engaged with the card slot 14. The bottom of the first frosted glass sheet 2 is lapped on the top of the bottom block 13, so as to ensure the position stability of the clamping assembly in the initial state.

[0033] Working principle: Place the clamping assembly above the base 1, and make the bottom block 13 engage with the card slot 14. At this time, combine the first frosted glass sheet 2 with the inner groove 12. At this time, the bottom of the first frosted glass sheet 2 abuts against the top of the bottom block 13. Apply thermal grease to the first frosted glass sheet 2, and then suck the second frosted glass sheet 3 onto the suction cup 26. The settings of the connecting sleeve 27 and the limiting block 28 can enable the second frosted glass sheet 3 to quickly determine its position. Rotate the driving rod 7 to make it move downward. The convex disk 21 at the bottom of the driving rod 7 rotates and mates with the inside of the clamping sleeve 22. At the same time, the sliding sleeve 6 on the outside of the pushing rod 8 slides and mates with the vertical end of the top frame 5, so that the pushing rod 8 moves downward smoothly. The pushing rod 8 drives the second frosted glass sheet 3 through the cooperation of the connecting sleeve 20 and the top block 24 until the second frosted glass sheet 3 is in contact with the first frosted glass sheet 2 and the extrusion of the thermal grease is completed. At this time, keep the position of the second frosted glass sheet 3 unchanged, and manually rotate the connecting bin 16. The connecting bin 16 drives the screw sleeve 18 to engage with the screw rod 19. The connecting bin 16 drives the screw sleeve 18 to move downward while performing an axial position switch. The pressing block 15 gradually contacts the second frosted glass sheet 3 and compresses the spring 17 until the connecting bin 16 is completely placed above the second frosted glass sheet 3. At this time, the pressing block 15 stably abuts against the top of the second frosted glass sheet 3 under the action of the spring 17. At this time, the clamping assembly completes the combined clamping of the first frosted glass sheet 2 and the second frosted glass sheet 3. At this time, rotate the positioning rod to disengage it from the outer wall of the fixed frame 11, and push the overall support frame. The suction cup slides along the top of the second frosted glass sheet 3 until it completely disengages. At this time, the first frosted glass sheet 2 and the second frosted glass sheet 3 can be independently separated from the device for convenient manual transfer. At the same time, manually rotate the locking rod 25 so that its open end disengages from the outer wall of the connecting sleeve 20. At this time, the connecting sleeve 20 loses its axial constraint. After the connecting sleeve 20 is vertically pulled to a specified position, it can be fixed by the locking rod 25. In this way, under the condition that the pushing distance of the driving rod 7 is constant, the vertical position of the connecting sleeve 20 can be adjusted to match different extrusion requirements.

[0034] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for measuring the oil separation rate of thermal conductive silicone grease, comprising a base (1), a first ground glass sheet (2) and a second ground glass sheet (3), characterized in that, The top of the base (1) is provided with an inner groove (12), the first frosted glass sheet (2) is combined with the inner groove (12), the top of the base (1) is fixedly installed with a top frame (5) through a support frame (4), a driving rod (7) is screwed to the top of the top frame (5), the bottom of the driving rod (7) is snap-connected with a push rod (8), and a limiting component for restricting the axial offset of the push rod (8) is arranged between the push rod (8) and the top frame (5). A connecting sleeve (20) is slidably connected to the inner wall of the push rod (8), and a positioning component for positioning the connecting sleeve (20) is arranged on the inner wall of the push rod (8). The bottom of the connecting sleeve (20) is detachably connected to the second frosted glass sheet (3). A clamping component for clamping the combination of the first frosted glass sheet (2) and the second frosted glass sheet (3) is arranged on the top of the base (1).

2. The device for measuring the oil separation rate of thermal conductive silicone grease according to claim 1, wherein A fixing frame (11) is fixedly installed on the top of the base (1). The outer wall of the longitudinal end of the fixing frame (11) is slidably connected to the inner wall of the vertical end of the support frame (4). A positioning rod (10) is screwed to the inner wall of the vertical end of the support frame (4). The open end of the positioning rod (10) abuts against the outer wall of the fixing frame (11).

3. The device for measuring the oil separation rate of thermal conductive silicone grease according to claim 2, characterized in that, A clamping sleeve (22) is fixedly installed on the top of the push rod (8), and a convex disk (21) is fixedly installed on the bottom of the driving rod (7). The convex disk (21) is snap-connected to the inner wall of the clamping sleeve (22).

4. The device for measuring the oil separation rate of thermal conductive silicone grease according to claim 3, wherein, The limiting component includes a sliding sleeve (6) fixedly installed on the outer wall of the push rod (8). The inner wall of the sliding sleeve (6) is slidably connected to the outer wall of the vertical end of the top frame (5). The top frame (5) and the horizontal end of the support frame (4) are distributed at a right angle.

5. The device for measuring the oil separation rate of thermal conductive silicone grease according to claim 4, characterized in that, A top block (24) is screwed to the bottom of the connecting sleeve (20). A suction cup (26) is fixedly connected to the bottom of the top block (24). The suction cup (26) is suctioned to the top of the second frosted glass sheet (3). A limiting block (28) is fixedly connected to the horizontal end of the support frame (4) through a connecting sleeve (27). The positioning component includes a locking rod (25). The outer wall of the locking rod (25) is screwed to the inner wall of the push rod (8), and the outer wall of the locking rod (25) abuts against the outer wall of the connecting sleeve (20).

6. The device for measuring the oil separation rate of thermal conductive silicone grease according to claim 5, wherein, A limiting ring (23) is fixedly installed on the top of the connecting sleeve (20). The bottom of the push rod (8) has a horizontal extension. The outer wall of the arc end of the limiting ring (23) is slidably connected to the inner wall of the push rod (8). The vertical end of the connecting sleeve (20) is slidably matched with the horizontal extension.

7. The device for measuring the oil separation rate of thermal conductive silicone grease according to claim 6, characterized in that, The clamping component includes a bottom block (13). The bottom block (13) is snap-connected to the top of the base (1). A vertical seat (9) is fixedly installed on the top of the bottom block (13). A screw rod (19) is fixedly installed on the top of the vertical seat (9). A nut sleeve (18) is screwed to the outer wall of the screw rod (19). A connecting bin (16) is fixedly installed on the outer wall of the nut sleeve (18). A pressing block (15) is slidably matched with the bottom of the connecting bin (16), and a spring (17) is fixedly installed between the top of the pressing block (15) and the connecting bin (16).

8. The device for measuring the oil separation rate of thermal conductive silicone grease according to claim 7, characterized in that A clamping groove (14) communicating with the inner groove (12) is formed in the top of the base (1), the bottom block (13) is clamped with the clamping groove (14), and the bottom of the first frosted glass sheet (2) is lapped on the top of the bottom block (13).

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