CN218133022U

CN218133022U - Novel heat conduction silicone grease daubs device

Info

Publication number: CN218133022U
Application number: CN202221783808.8U
Authority: CN
Inventors: 付沈斌; 周璇; 张键
Original assignee: Guangzhou Guorui Scientific Instrument Co ltd
Current assignee: Guangzhou Guorui Scientific Instrument Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-12-27
Anticipated expiration: 2032-07-11

Abstract

The utility model relates to the technical field of heat-conducting silicone grease coating equipment, in particular to a novel heat-conducting silicone grease coating device, which comprises a base structure and a steel mesh sheet which can be covered on the base structure; the steel mesh is movably connected with the base structure; a smearing region for smearing heat-conducting silicone grease is arranged on the steel mesh; the positioning device also comprises a plurality of positioning columns and a plurality of positioning holes for the positioning columns to be inserted into; the positioning column is arranged on the base structure, and the positioning hole is arranged on the steel mesh; the base structure is also provided with a fixed seat for fixedly installing a workpiece to be coated with the heat-conducting silicone grease; when the steel mesh sheet covers the base structure, the smearing area corresponds to the position of the fixing seat. The utility model discloses overall structure sets up simply, and it is convenient to dismantle, and long service life can evenly paint heat conduction silicone grease at the semiconductor refrigeration piece on the surface according to certain thickness, and heat conduction silicone grease paints the accuracy height of position, and it is very convenient to use.

Description

Novel heat conduction silicone grease daubs device

Technical Field

The utility model relates to an equipment technical field is paintd to heat conduction silicone grease, more specifically relates to a novel heat conduction silicone grease paints device.

Background

The semiconductor refrigerating plate, also called thermoelectric refrigerating plate, is a heat pump. By using the Peltier effect of the semiconductor materials, when direct current passes through a galvanic couple formed by connecting two different semiconductor materials in series, heat can be absorbed and released at two ends of the galvanic couple respectively, and the aim of refrigeration can be fulfilled. When the cold end and the hot end reach a certain temperature difference and the heat transfer amounts are equal, a balance point is reached, the positive heat transfer and the reverse heat transfer are mutually offset, and the temperature of the cold end and the hot end cannot be changed continuously. In order to reach lower temperature, the temperature of the hot end can be reduced by adopting heat dissipation and other modes to realize, the fan and the heat dissipation fins mainly have the effect of heat dissipation of the hot end of the refrigerating fin, and the heat dissipation efficiency is influenced by the heat conduction efficiency, so the heat conduction silicone grease is required to be used as a carrier for transferring heat on the heating surface and the heat dissipation surface.

The heat-conducting silicone grease is commonly called as a heat-dissipating paste, and the heat-conducting silicone grease is a heat-conducting silicone grease-like compound prepared by taking organic silicone as a main raw material and adding a material with excellent heat resistance and heat-conducting property, and is used for heat conduction and heat dissipation of electronic components such as power amplifiers, transistors, electronic tubes, CPUs (central processing units), semiconductor refrigerating sheets and the like, so that the stability of the electrical properties of electronic instruments, meters and the like is ensured. The heat-conducting silicone grease is one of materials used for filling a gap between the heating body and the radiating fin, and the material is also called as a thermal interface material, and has the functions of conducting heat emitted by the heating body to the radiating fin, keeping the temperature of the heating body at a level capable of stably working, preventing the heating body from being damaged due to poor heat dissipation and prolonging the service life.

When the heat-conducting silicone grease is smeared, the heat-conducting silicone grease is smeared by a brush pen, roll coating and automatic cylinder extruding and roll type smearing of a dispenser, the problems of uneven smearing surface and uneven smearing thickness of the heat-conducting silicone grease are easily caused, if the thickness of the heat-conducting silicone grease is uneven, the uneven connecting gap between a semiconductor refrigerating sheet and a radiator can be influenced, so that the heat dissipation rate of the hot surface of the refrigerating sheet is caused, the smearing efficiency is low and the production efficiency is influenced by using simple tools such as the brush pen, a roller and the like for smearing.

The waste of heat conduction silicone grease is also caused easily when the work is paintd to current technique of painting, and the use of heat conduction silicone grease is not scribbled more better, but is guaranteeing to fill up and is thin better under the prerequisite in clearance more, scribbles more and not beneficial, can influence heat conduction efficiency on the contrary, if heat conduction silicone grease scribbles the volume too big can lead to heat conduction silicone grease to pollute semiconductor refrigeration piece original paper, influences the performance of semiconductor refrigeration piece, damages the device easily.

The prior art discloses a smearing device for a heat-conducting silicone grease layer, which is used for smearing the heat-conducting silicone grease layer on a bottom plate of an IGBT module, wherein the smearing device comprises a bearing seat and a printing module, the bearing seat is provided with a bearing surface, the IGBT module is supported on the bearing surface, the printing module is provided with a printing area, the printing area is positioned above the IGBT module, and a plurality of through holes are uniformly distributed on the printing area. This device is paintd on heat conduction silicone grease layer carries out heat conduction silicone grease layer through the printing template and paints to the IGBT module, the heat conduction silicone grease layer that obtains has good roughness, and can control the thickness on heat conduction silicone grease layer, but this device is paintd on heat conduction silicone grease layer can't carry out firm location to the printing module when the printing template lid closes to bearing the weight of the seat on, paint in-process printing module and take place the skew and can lead to smearing the position and appear the deviation, and then the influence is to the IGBT module on heat conduction silicone grease layer paint the position inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art paint the problem that the position easily takes place the skew, provide a structure setting simply, convenient to use, and paint the device is paintd to the accurate novel heat conduction silicone grease in position.

In order to solve the technical problem, the utility model adopts the technical scheme that: a novel heat-conducting silicone grease smearing device comprises a base structure and a steel mesh piece which can be covered on the base structure; the steel mesh is movably connected with the base structure; the steel mesh is provided with a coating area for coating heat-conducting silicone grease; the positioning device also comprises a plurality of positioning columns and a plurality of positioning holes for the positioning columns to insert; the positioning column is arranged on the base structure, and the positioning hole is arranged on the steel mesh; the base structure is also provided with a fixed seat for fixedly installing a workpiece to be coated with the heat-conducting silicone grease; when the steel mesh sheet covers the base structure, the smearing area corresponds to the position of the fixing seat.

The utility model discloses during the use, will wait to paint the work piece of heat conduction silicone grease and install on the fixing base, close the steel mesh piece lid to the base structure on, the structural reference column of base can plug to in the locating hole on the steel mesh piece, paint on the steel mesh piece the district corresponding with the position at the place of fixing base, not only can close the position on the base structure to the steel mesh piece lid like this and fix a position, still can avoid painting in-process steel mesh piece and take place to remove, and then can improve the accuracy of painting the position. When in smearing, the heat-conducting silicone grease can be smeared in the smearing area on the steel mesh sheet by using the scraper. The utility model discloses overall structure sets up simply, and convenient to use, through scribbling heat conduction silicone grease in the district of paining on steel mesh piece, and then scribble on the work piece of waiting to paint, on the basis of guaranteeing the even paining of heat conduction silicone grease, the accuracy of position is paintd through the improvement that setting up of reference column and locating hole can very big degree.

Preferably, the base structure comprises a base, a workbench and a base arranged on the workbench; the workbench is positioned on the base, and the fixed seat is arranged on the base; the positioning column is arranged on the base.

Preferably, the base is detachably arranged on the workbench; the base is provided with a concave part for installing the fixed seat; when the fixed seat is positioned in the concave part, the fixed seat top surface of the fixed seat is flush with the base top surface of the base.

Preferably, the workbench is movably arranged on a base, and a plate is arranged on the base; a first rotating handle is connected to the plate in a threaded manner; the position of the workbench is fixed by the first rotating handle which is abutted against the side wall of the workbench.

Preferably, the number of the first rotating handles is at least four, and the at least four first rotating handles abut against the four corners of the opposite side walls of the workbench respectively.

Preferably, the base structure is further provided with a height adjusting assembly capable of adjusting the height of the steel mesh.

Preferably, the height adjusting assembly comprises a threaded rod arranged on the base structure and a moving member which is sleeved on the threaded rod and can move up and down along the axial direction of the threaded rod; the moving piece is connected with the steel mesh through the rotating fixing clamp.

Preferably, the rotary fixing clamp comprises a clamping part and a rotating part; the clamping part is fixedly connected with the rotating part; the clamping part is detachably connected with the steel mesh piece, and the rotating part is rotatably connected to the moving piece.

Preferably, a plurality of square holes are arranged in the smearing area.

Preferably, the fixed seat is provided with a groove matched with the shape of a workpiece to be coated with the heat-conducting silicone grease; when the workpiece is positioned in the slot position, the top surface of the workpiece is flush with the top surface of the fixed seat.

Compared with the prior art, the beneficial effects of the utility model are that:

1) The utility model has simple integral structure, convenient disassembly and long service life, can evenly coat the heat-conducting silicone grease on the surface of the semiconductor refrigeration piece according to a certain thickness, can effectively avoid the excessive heat-conducting silicone grease from polluting the original piece of the semiconductor refrigeration piece, can also avoid the waste of the heat-conducting silicone grease, can not influence the connecting gap between the semiconductor refrigeration piece and the radiator, and greatly improves the heat dissipation of the hot surface of the semiconductor refrigeration piece;

2) The utility model discloses the accuracy that the position was paintd to well reference column and locating hole can be improved greatly to setting up, and the accurate correspondence of reference column and locating hole can be guaranteed through the position of adjustment workstation and the height of steel mesh piece in addition, has further improved the accuracy that the position was paintd to heat conduction silicone grease.

3) The utility model discloses can improve the operating efficiency greatly in the operation together simultaneously of polylith semiconductor refrigeration piece, and then improve production efficiency.

Drawings

FIG. 1 is a schematic structural view of a heat-conductive silicone grease application device according to the present invention, in which a steel mesh sheet is covered on a base structure;

FIG. 2 is a schematic structural view of another angle at which the steel mesh sheet covers the base structure in the heat-conductive silicone grease application device of the present invention;

FIG. 3 is a schematic structural view of the heat-conductive silicone grease application device according to the present invention with the steel mesh sheet open;

FIG. 4 is a schematic structural view of the heat-conductive silicone grease application device according to the present invention, wherein the steel mesh sheet is opened at another angle;

FIG. 5 is a schematic structural view of a steel mesh sheet according to the present invention;

fig. 6 is a schematic structural view of the fixing base of the present invention;

fig. 7 is a schematic structural diagram of the scraper blade of the present invention;

FIG. 8 is a schematic view of the structure of a workpiece to be coated with heat-conductive silicone grease according to the present invention;

fig. 9 is a schematic structural view of a workpiece coated with heat-conductive silicone grease according to the present invention.

In the drawings: 1-a base structure; 11-a base; 111-a plate; 112-a first turning handle; 113-a first abutment tab; 12-a work bench; 13-a base; 131-a recess; 132-a top surface of the base; 133-a convex part; 2-a steel mesh sheet; 21-a smearing zone; 211-square holes; 22-positioning holes; 3, positioning columns; 4-fixing the base; 41-top surface of the fixed seat; 42-slot position; 43-a first screw hole; 5-a height adjustment assembly; 51-a threaded rod; 52-a moving member; 521-a handle part; 522-a connecting part; 6-rotating the fixing clamp; 61-a clamping portion; 611-a second turning handle; 612-a second abutment tab; 62-a rotating part; 7-a frame; 9-a scraper; 10-workpiece.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

Fig. 1 to 9 show an embodiment 1 of a novel heat-conducting silicone grease coating device, which includes a base structure 1, a steel mesh sheet 2, a plurality of positioning pillars 3 and a fixing base 4, wherein the steel mesh sheet 2 can cover the base structure 1, the fixing base 4 is disposed on the base structure 1, the fixing base 4 is used for fixedly mounting a workpiece 10 to be coated with heat-conducting silicone grease, in this embodiment, the workpiece 10 is a semiconductor refrigeration sheet, a fixing base top surface 41 on the fixing base 4 is provided with a slot 42, the shape of the slot 42 matches with that of the semiconductor refrigeration sheet, when the semiconductor refrigeration sheet is placed in the slot 42 on the fixing base 4, the semiconductor refrigeration sheet can be just clamped in the slot 42, and when the semiconductor refrigeration sheet is placed in the slot 42, the top surface of the semiconductor refrigeration sheet is flush with the fixing base top surface 41 on the fixing base 4.

Wherein the steel mesh 2 is a thin metal sheet, the steel mesh 2 is provided with a smearing region 21 for smearing heat-conducting silicone grease, the smearing region 21 is provided with square holes 211, and the distribution positions and shapes of the square holes 211 are matched with the shape of the surface to be smeared of the semiconductor refrigerating sheet.

Wherein base structure 1 includes base 11, workstation 12 and base 13, and the cross section of base 11 is the rectangle, and wherein workstation 12 is rectangle platelike structure.

Wherein base 13 can be dismantled and fix on workstation 12, convex part 133 is extended to the both sides lower part of base 13, convex part 133 passes through fastening screw to be fixed on workstation 12, wherein the top of base 13 is equipped with concave part 131, concave part 131 is used for placing fixing base 4, be equipped with the first screw hole 43 of a plurality of on the fixing base 4 in this embodiment, be equipped with the second screw hole corresponding with the first screw hole 43 on fixing base 4 on base 13, use fastening screw to pass first screw hole 43 and second screw hole and can firmly fix fixing base 4 on base 13, the fixing base top surface 41 of fixing base 4 flushes mutually with the base top surface 132 of base 13.

The positioning columns 3 are disposed on the top surface 132 of the base 13, and in this embodiment, the positioning columns 3 are disposed at four corners of the top surface 132. Wherein four angles of the department of scribbling district 21 on the steel mesh piece 2 are equipped with locating hole 22 respectively, and wherein the reference column 3 can be pegged graft in locating hole 22, and when the reference column 3 was pegged graft to in the locating hole 22, the district 21 of scribbling on the steel mesh piece 2 just in time corresponds with the position of the work piece 10 of the heat conduction silicone grease that treats to scribble on fixing base 4, can be convenient for scribble the quick location of district 21 and work piece 10's position, also can improve the accuracy of heat conduction silicone grease scribbling the position on the work piece 10 simultaneously.

The thickness of the heat-conducting silicone grease coated on the workpiece 10 depends on the thickness of the steel mesh sheet 2, the thickness of the steel mesh sheet 2 in the embodiment is 0.08mm, and the steel mesh sheets 2 with different thicknesses can be customized according to different requirements.

The utility model discloses a concrete theory of operation does:

to wait to paint work piece 10 of heat conduction silicone grease and steadily place in trench 42 on fixing base 4, location column 3 is pegged graft to in the locating hole 22, the district 21 of paining of steel mesh piece 2 is located the higher authority of work piece 10, extrude the surface at steel mesh piece 2 with the heat conduction silicone grease material, then use scraper 9 smoothly scrape the square hole 211 on the steel mesh piece 2 with the heat conduction silicone grease in, use the scraper 9 as shown in fig. 7 in this embodiment, of course also can choose the scraper 9 of different grade type according to specific user demand, as long as can be with in the direction hole 211 of paining district 21 department smoothly scraped with the heat conduction silicone grease on the steel mesh piece 2.

Because the workpiece 10 to be coated with the heat-conducting silicone grease is correspondingly arranged below the square holes 211, the heat-conducting silicone grease can be scraped to the surface of the workpiece 10 one by one according to the shape of the square holes 211, after all the square holes 211 are filled with the heat-conducting silicone grease, the steel mesh piece 2 is rotated by a certain angle to enable the steel mesh piece 2 to be far away from the base structure 1, then one workpiece 10 is taken out from the groove position 42 of the fixed seat 4, and the heat-conducting silicone grease is uniformly distributed on the surface of the workpiece 10.

The utility model has the advantages that the whole structure sets up simply, it is convenient to dismantle, long service life, can evenly paint heat conduction silicone grease on the surface at the semiconductor refrigeration piece according to certain thickness, can effectively avoid heat conduction silicone grease excessive and pollute semiconductor refrigeration piece original paper, also can avoid causing the waste of heat conduction silicone grease, can not influence the gap of connection between semiconductor refrigeration piece and the radiator simultaneously, greatly improve the heat dissipation of semiconductor refrigeration piece hot side, and the setting of reference column and locating hole can improve the accuracy that heat conduction silicone grease paintd the position greatly, in addition the utility model discloses can work together simultaneously at polylith semiconductor refrigeration piece, improve the operating efficiency greatly, and then improved production efficiency.

Example 2

The present embodiment is an embodiment 2 of a novel heat-conducting silicone grease coating device, and the difference between the present embodiment and embodiment 1 is that: wherein workstation 12 activity sets up on base 11, workstation 12 is adjustable at base 11's position, and is specific, is equipped with plate 111 on the base 11, and plate 111 is the sheet metal piece, and plate 111 welds on base 11, and plate 111 sets up four altogether in this embodiment, and wherein two are a set of, and two sets of plate 111 are located base 11's relative long limit lateral wall respectively, and the plate 111 that is located same side on the base 11 has certain interval, and the interval is less than workstation 12's length.

Wherein be equipped with on the plate 111 and attack the tooth internal thread, the tooth internal thread department threaded connection of attacking of plate 111 has first handle 112 of rotating, first handle 112 of rotating can with workstation 12 looks butt, as preferred technical scheme, the one end of the first handle 112 of rotating with workstation 12 looks butt is equipped with first butt piece 113, first butt piece 113 is the disk in this embodiment, first butt piece 113 sets up the butt area that can provide first handle 112 of rotating and workstation 12, and then improve the steadiness of first handle 112 of rotating and workstation 12 butt. By rotating the first rotating handle 112 at different positions of the base 11, the left and right directions of the workbench 12 can be horizontally adjusted and the workbench 12 is fixed, so that the position of the workbench 12 can be adjusted.

The utility model discloses before scribbling heat conduction silicone grease to work piece 10, need examine earlier whether locating hole 22 on the steel mesh piece 2 corresponds with reference column 3 one-to-one on the base 13, if do not have the one-to-one, through the position that first rotation handle 112 adjusted workstation 12, until steel mesh piece 2 locating hole 22 of steel mesh piece 2 can correspond with reference column 3 when flip gets off. The arrangement can effectively ensure the accurate positioning of the positioning hole 22 and the positioning column 3, so that the heat-conducting silicone grease can be accurately coated on the corresponding position of the workpiece 10.

Example 3

The present embodiment is an embodiment 3 of a novel heat-conducting silicone grease coating device, and the difference between the present embodiment and embodiment 2 is that: wherein still be equipped with on the base 11 and be used for adjusting the height control subassembly 5 of steel mesh piece 2 height, it is concrete, height control subassembly 5 includes threaded rod 51 and moving member 52, and threaded rod 51 sets up two altogether in this embodiment, all is located the top surface of the same minor face of base 11, and two threaded rods 51 have certain interval. Wherein, the base 11 is provided with a screw mounting hole which is in threaded fit with the threaded rod 51, and the threaded rod 51 can be fixed on the base 11 by screwing the threaded rod 51 in the screw mounting hole of the base 11.

The two moving members 52 are also arranged and are respectively sleeved on the threaded rod 51, specifically, the moving members 52 comprise a handle portion 521 and a connecting portion 522, the handle portion 521 is connected with the connecting portion 522, a threaded hole in threaded connection with the threaded rod 51 is formed in the handle portion 521, a through hole for the threaded rod 51 to pass through is formed in the connecting portion 522, and when the handle portion 521 is rotated, the handle portion 521 can drive the connecting portion 522 to move on the threaded rod 51.

Wherein connecting portion 522 is connected with steel mesh 2 through rotating fixation clamp 6, wherein steel mesh 2 is connected with frame 7, it is concrete, rotate fixation clamp 6 and include clamping part 61 and rotation portion 62, wherein clamping part 61 and rotation portion 62 fixed connection, clamping part 61 is "Contraband" type structure, wherein clamping part 61 can the joint on frame 7, wherein be equipped with a plurality of second rotation handle 611 on clamping part 61, second rotation handle 611 can butt on frame 7, through rotating second rotation handle 611 and screwing up in order to fix frame 7 on clamping part 61.

Preferably, a second abutting piece 612 is disposed at one end of the second rotating handle 611 abutting against the frame 7, wherein the second abutting piece 612 is a circular piece, and the second abutting piece 612 is disposed to provide an abutting area of the second rotating handle 611 and the frame 7, thereby improving the abutting stability of the second rotating handle 611 and the frame 7.

The rotating part 62 is a cylinder, one end of the rotating part 62 is rotatably inserted into the connecting part 522 of one of the moving parts 52, and the other end of the rotating part 62 is rotatably inserted into the connecting part 522 of the other moving part 52. The rotating part 62 can drive the clamping part 61 to rotate in the rotating process, and then the clamping part 61 drives the steel mesh sheet 2 to rotate through the frame 7, so that the covering operation of the steel mesh sheet 2 on the base structure 1 can be realized

The utility model discloses whether using except that the locating hole 22 on the inspection steel mesh piece 2 with the reference column 3 one-to-one on the base 13, still need further inspect steel mesh piece 2 with the parallel laminating of fixing base top surface 41 of fixing base 4, if steel mesh piece 2 does not have with the parallel laminating of fixing base top surface 41 of fixing base 4, adjust the height of steel mesh piece 2 through altitude mixture control subassembly 5, make steel mesh piece 2 reach the state with the parallel laminating of fixing base top surface 41 of fixing base 4, can effectively guarantee like this that the in-process heat conduction silicone grease of paining can not spill over from the edge of work piece 10.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A novel heat-conducting silicone grease smearing device comprises a base structure (1) and a steel mesh sheet (2) which can be covered on the base structure (1); the steel mesh (2) is movably connected with the base structure (1); the steel mesh (2) is provided with a smearing area (21) for smearing heat-conducting silicone grease; the method is characterized in that: the positioning device also comprises a plurality of positioning columns (3) and a plurality of positioning holes (22) for the positioning columns (3) to insert; the positioning column (3) is arranged on the base structure (1), and the positioning hole (22) is arranged on the steel mesh sheet (2); the base structure (1) is also provided with a fixed seat (4) for fixedly installing a workpiece to be coated with heat-conducting silicone grease; when the steel mesh sheet (2) covers the base structure (1), the smearing area (21) corresponds to the position of the fixed seat (4).

2. The novel heat-conducting silicone grease application device according to claim 1, characterized in that: the base structure (1) comprises a base (11), a workbench (12) and a base (13) arranged on the workbench (12); the workbench (12) is positioned on the base (11), and the fixed seat (4) is arranged on the base (13); the positioning column (3) is also arranged on the base (13).

3. The novel heat-conducting silicone grease smearing device as claimed in claim 2, wherein: the base (13) is detachably arranged on the workbench (12); the base (13) is provided with a concave part (131) for installing the fixed seat (4); when the permanent seat (4) is positioned in the concave part (131), the permanent seat top surface (41) of the permanent seat (4) is flush with the base top surface (132) of the base (13).

4. The novel heat-conducting silicone grease application device according to claim 2, characterized in that: the workbench (12) is movably arranged on the base (11), and a plate (111) is arranged on the base (11); a first rotating handle (112) is connected to the plate (111) in a threaded manner; the position of the workbench (12) is fixed by the first rotating handle (112) contacting with the side wall of the workbench (12).

5. The novel heat-conducting silicone grease application device according to claim 4, wherein: the number of the first rotating handles (112) is at least four, and the at least four first rotating handles (112) are respectively abutted at the positions of four corners on the opposite side walls of the workbench (12).

6. The novel heat-conducting silicone grease application device according to claim 1, characterized in that: the base structure (1) is further provided with a height adjusting assembly (5) capable of adjusting the height of the steel mesh (2).

7. The novel heat-conducting silicone grease application device according to claim 6, wherein: the height adjusting assembly (5) comprises a threaded rod (51) arranged on the base structure (1) and a moving piece (52) which is sleeved on the threaded rod (51) and can move up and down along the axial direction of the threaded rod (51); the moving piece (52) is connected with the steel mesh piece (2) through a rotating fixing clamp (6).

8. The novel heat-conducting silicone grease application device according to claim 7, wherein: the rotary fixing clamp (6) comprises a clamping part (61) and a rotating part (62); the clamping part (61) is fixedly connected with the rotating part (62); the clamping part (61) is detachably connected with the steel mesh sheet (2), and the rotating part (62) is rotatably connected to the moving part (52).

9. The novel thermal conductive silicone grease application device according to any one of claims 1 to 8, wherein: the smearing area (21) is internally provided with a plurality of square holes (211).

10. The novel heat-conducting silicone grease smearing device as claimed in claim 9, wherein: a groove (42) matched with the shape of a workpiece to be coated with heat-conducting silicone grease is arranged on the fixed seat (4); when the workpiece is positioned in the slot (42), the top surface of the workpiece is flush with the top surface (41) of the fixed seat (4).