Pneumatic device for brushing heat-conducting silicone grease on ceramic chip of radiator

Abstract

The utility model provides a heat-conducting silicone grease brushing pneumatic device for a radiator ceramic wafer. The heat-conducting silicone grease brushing pneumatic device comprises a relay positioning frame and a suction cup device. The surface of the radiator is provided with a plurality of first ceramic chip positioning grooves for arranging ceramic chips; the relay positioning frame is also provided with a plurality of through positioning ports. The suction cup device comprises a ceramic wafer placing seat, a suction cup mounting seat, a cover plate and an air control mechanism, a plurality of second ceramic wafer positioning grooves for placing ceramic wafers are formed in the bottom surface of the ceramic wafer placing seat, a plurality of suction cup mounting columns extending downwards are arranged on the lower surface of the suction cup mounting seat, and vacuum suction cups are mounted below the suction cup mounting columns. According to the utility model, the ceramic wafer is sucked by the sucker device and is overturned and placed on the radiator, the radiator does not need to be moved, and for a larger radiator, the ceramic wafer can be coated and loaded for multiple times through the sucker device with smaller weight, or a plurality of different sucker devices with smaller weight are configured, so that the coating operation of heat-conducting silicone grease is facilitated, and the working efficiency is improved. And the labor intensity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to inverter manufacturing technical field, concretely is radiator ceramic sheet coating brush heat conduction silicone grease pneumatic device. BACKGROUND

[0002] There are generally multiple power components on the inverter, and these power components have large heat, which needs to be promptly dissipated through the radiator. The ceramic sheet is a heat transfer intermediate body connected between the power component and the radiator. In order to improve the contact bonding degree between the surface of the ceramic sheet and the power component and the radiator, heat conduction silicone grease needs to be coated on both surfaces of the ceramic sheet.

[0003] The existing ceramic sheet brush heat conduction silicone grease processing mode has relatively low efficiency and great limitations. At present, the ceramic sheets are arranged on a jig, one side of the ceramic sheet is coated with glue, then the radiator is placed on the jig, the jig and the radiator are turned over 180 degrees, the ceramic sheet is transferred to the radiator, and the other side of the ceramic sheet on the radiator is coated with glue after the jig is removed. Because multiple handling and turning over are needed, and in the case of large and heavy radiator, the whole process is time-consuming and labor-consuming, the labor cost is high, and the labor intensity is large. SUMMARY

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a radiator ceramic sheet coating brush heat conduction silicone grease pneumatic device.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model to solve its technical problems is: the radiator ceramic sheet coating brush heat conduction silicone grease pneumatic device, comprising:

[0006] The radiator has a plurality of first ceramic sheet positioning grooves on its surface for setting the ceramic sheet;

[0007] The relay positioning frame has a contour positioning structure matched with the surface contour of the radiator, and a plurality of through positioning openings are further provided on the relay positioning frame, and each through positioning opening surrounds a plurality of first ceramic sheet positioning grooves;

[0008] The disc device comprises a ceramic sheet placing seat, a disc mounting seat, a cover plate and a gas control mechanism, the bottom of the ceramic sheet placing seat is provided with a positioning structure matched with the through positioning opening, the bottom surface of the ceramic sheet placing seat is provided with a plurality of second ceramic sheet positioning grooves for placing ceramic sheets, the second ceramic sheet positioning grooves are vertically arranged with the first ceramic sheet positioning grooves on the heat sink, and the middle of the second ceramic sheet positioning grooves is provided with a disc through hole vertically penetrating through; the disc mounting seat is mounted above the ceramic sheet placing seat, the lower surface of the disc mounting seat is provided with a plurality of disc mounting columns extending downward, the center of the disc mounting column is provided with a gas sub-channel vertically penetrating through, and a vacuum disc is mounted below the disc mounting column; the cover plate is arranged above the disc mounting seat, a gas main channel is arranged between the cover plate and the disc mounting seat and communicated with all the gas sub-channels; and the gas control mechanism is communicated with the gas main channel and used for controlling vacuum extraction or gas blowing in the gas main channel.

[0009] The disc device is used for sucking and turning over the ceramic sheet and placing the ceramic sheet on the heat sink, and the heat sink does not need to be moved, for a large heat sink, the disc device with small weight can be used to glue and load the ceramic sheet in multiple times, or multiple disc devices with different small weights are arranged, so that the brushing work of the heat-conducting silicone grease is facilitated, and the labor intensity is reduced.

[0010] Further, the gas control mechanism comprises a gas pump, an air inlet switch, a reversing valve and a vacuum generator, the reversing valve has an air inlet, a first air outlet and a second air outlet, and is used for controlling the air inlet to be individually communicated with the first air outlet or the air inlet to be individually communicated with the second air outlet; the air outlet of the gas pump is connected to the air inlet of the air inlet switch through a pipeline, the air outlet of the air inlet switch is connected to the air inlet of the reversing valve through a pipeline, the first air outlet of the reversing valve is communicated with the gas main channel of the disc device through a first branch pipeline, the second air outlet of the reversing valve is connected to the air inlet end of the vacuum generator through a second branch pipeline, the air outlet end of the vacuum generator is connected to the atmosphere, and the vacuum end of the vacuum generator is communicated with the gas main channel of the disc device.

[0011] By adopting the preferred scheme, the ceramic sheet can be sucked and blown only by controlling the reversing valve, the separation speed of the ceramic sheet from the disc device to the heat sink is improved, and the work efficiency is improved.

[0012] Further, the vacuum disc and the disc mounting column are provided with a sealing ring.

[0013] Further, the cover plate and the disc mounting seat are provided with a sealing gasket surrounding the outer edge of the gas main channel.

[0014] By adopting the preferred scheme, the sealing property is improved. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of one embodiment of the pneumatic device of this utility model.

[0017] Figure 2 This is a cross-sectional view of one embodiment of the pneumatic device of this utility model.

[0018] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle.

[0019] Figure 4 This is a structural diagram of the relay positioning frame and the heat sink.

[0020] Figure 5 This is a top view of one embodiment of the suction cup device.

[0021] Figure 6 This is a schematic diagram of one implementation of the gas control mechanism.

[0022] Figure 7 This is a schematic diagram showing the ceramic tile holder facing upwards.

[0023] Figure 8 This is a schematic diagram showing the combined state of the ceramic sheet arrangement mechanism and the suction cup device.

[0024] Figure 9 It is a cross-sectional view of the ceramic sheet arrangement mechanism and the suction cup device in the combined state and perpendicular to the direction of movement.

[0025] Figure 10 It is a cross-sectional view showing the ceramic sheet arrangement mechanism and the suction cup device in a combined state with the direction of movement being vertically parallel.

[0026] Figure 11 yes Figure 10 Enlarged view of section B in the middle.

[0027] Figure 12 yes Figure 11 Enlarged view of a section at point C.

[0028] The numbers and letters in the diagram represent the names of the corresponding components:

[0029] 10-Radiator; 11-First ceramic plate positioning groove;

[0030] 20 - Relay positioning frame; 21 - Through positioning port;

[0031] 30-Suction cup device; 31-Ceramic disc placement seat; 311-Second ceramic disc positioning groove; 312-Suction cup through hole; 32-Suction cup mounting seat; 321-Suction cup mounting post; 322-Gas sub-channel; 323-Vacuum suction cup; 324-Main gas channel; 33-Cover plate; 34-Gas control mechanism; 341-Inlet switch; 342-Reversing valve; 3421-Inlet; 3422-First outlet; 3423-Second outlet; 3424-First branch pipeline; 3425-Second branch pipeline; 343-Vacuum generator; 3431-Inlet end; 3432-Outlet end; 3433-Vacuum end; 351-Sealing ring; 352-Sealing gasket;

[0032] 40-Ceramic sheet stacking mechanism; 41-Linear shifting mechanism; 411-Rodless cylinder; 4111-Slider; 4112-Positioning plate; 412-Stacking switch; 413-Stacking reversing valve; 414-Speed ​​control valve; 42-Ceramic sheet stacking box; 421-Stacking cavity; 422-Magnet; 423-Positioning pin; 424-Chamfered surface;

[0033] 50-Ceramic sheet. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] like Figures 1-12 As shown, a pneumatic device for applying thermally conductive silicone grease to a radiator ceramic fin includes:

[0036] The radiator 10 has a plurality of first ceramic plate positioning grooves 11 on its surface for setting ceramic plates;

[0037] The relay positioning frame 20 has a contour positioning structure that matches and positions the surface contour of the heat sink. The relay positioning frame 20 is also provided with multiple through positioning holes 21, each through positioning hole 21 surrounding multiple first ceramic plate positioning grooves 11.

[0038] The suction disc device 30 comprises a ceramic sheet placing seat 31, a suction disc mounting seat 32, a cover plate 33 and a gas control mechanism 34, the bottom of the ceramic sheet placing seat 31 is provided with a positioning structure matched with the through positioning opening 21, the bottom surface of the ceramic sheet placing seat 31 is provided with a plurality of second ceramic sheet positioning grooves 311 for placing ceramic sheets, the second ceramic sheet positioning grooves 311 are vertically opposite to the first ceramic sheet positioning grooves 11 on the heat sink, and the second ceramic sheet positioning grooves 311 are provided with a through suction disc through hole 312 vertically penetrating the middle; the suction disc mounting seat 32 is mounted above the ceramic sheet placing seat 31, the lower surface of the suction disc mounting seat 32 is provided with a plurality of downwardly extending suction disc mounting columns 321, the center of the suction disc mounting column 321 is provided with a vertically penetrating gas sub-channel 322, and the lower portion of the suction disc mounting column 321 is mounted with a vacuum suction disc 323; the cover plate 33 is covered above the suction disc mounting seat 32, and the cover plate 33 and the suction disc mounting seat 32 are provided with a gas main channel 324 in communication with all the gas sub-channels 322; the gas control mechanism 34 is in communication with the gas main channel 324, and the gas control mechanism 34 is used for controlling vacuum extraction or gas blowing in the gas main channel 324.

[0039] The beneficial effect of the above technical scheme is that the ceramic sheet is sucked by the suction disc device and placed on the heat sink by turning over, and the heat sink does not need to be moved, for a larger heat sink, the glue coating and loading of the ceramic sheet can be performed in multiple times by the smaller weight suction disc device, or multiple different smaller weight suction disc devices are configured, the brushing work of the heat-conducting silicone grease is facilitated, and the labor intensity is reduced.

[0040] As shown in the drawings, Figure 6 In some other embodiments of the present application, the gas control mechanism 34 comprises a gas pump (not shown in the drawings), an air inlet switch 341, a reversing valve 342 and a vacuum generator 343, the reversing valve 342 has an air inlet 3421, a first air outlet 3422 and a second air outlet 3423, and is used for controlling the air inlet 3421 to be in communication with the first air outlet 3422 alone or the air inlet 3421 to be in communication with the second air outlet 3423 alone; the air outlet of the gas pump is connected to the air inlet of the air inlet switch 341 through a pipeline, the air outlet of the air inlet switch 341 is connected to the air inlet of the reversing valve 342 through a pipeline, the first air outlet 3422 of the reversing valve 342 is in communication with the gas main channel 324 of the suction disc device through a first branch pipeline 3424, the second air outlet 3423 of the reversing valve is connected to the air inlet end of the vacuum generator 343 through a second branch pipeline 3425, the air outlet end 3432 of the vacuum generator 343 is connected to the atmosphere, and the vacuum end 3433 of the vacuum generator is in communication with the gas main channel 324 of the suction disc device. The beneficial effect of the above technical scheme is that the suction and blowing of the ceramic sheet can be realized only by operating the reversing valve, the separation speed of the ceramic sheet from the suction disc device to the heat sink is improved, and the work efficiency is improved.

[0041] As Figure 3 shown in the utility model, in still other embodiments of the utility model, a sealing ring 351 is arranged between the vacuum chuck 323 and the chuck mounting column 321; a sealing gasket 352 is arranged between the cover plate 33 and the chuck mounting seat 32 and surrounds the outer edge of the gas main passage 324. The beneficial effects of the above technical solution are: improved sealing performance.

[0042] As Figures 8-12 shown in the utility model, in still other embodiments of the utility model, the ceramic sheet arranging mechanism 40 comprises a linear displacement mechanism 41 and a ceramic sheet arranging box 42, the linear displacement mechanism 41 is installed on the ceramic sheet placing seat 31 of the chuck device, the ceramic sheet arranging box 42 is provided with a quick positioning structure between the slider of the linear displacement mechanism 41, the ceramic sheet arranging box 42 is provided with a sheet stacking cavity 421 for stacking the ceramic sheets 50, the bottom of the sheet stacking cavity 421 is provided with a lower opening for the ceramic sheets 50 to fall, and the lower opening of the sheet stacking cavity 421 of the ceramic sheet arranging box 42 is matched with each second ceramic sheet positioning groove 311 arranged on the ceramic sheet placing seat 31 in sequence under the driving of the linear displacement mechanism 41. The beneficial effects of the above technical solution are: improved ceramic sheet arranging speed on the chuck device and improved work efficiency.

[0043] As Figures 8-12 shown in the utility model, in still other embodiments of the utility model, the linear displacement mechanism 41 comprises a rodless cylinder 411, a sheet arranging switch 412 and a sheet arranging reversing valve 413, the air inlet end of the sheet arranging switch 412 is connected to the air outlet of the air pump through a pipeline, the air outlet end of the sheet arranging switch 412 is connected to the air inlet end of the sheet arranging reversing valve 413 through a pipeline, the first air outlet end of the sheet arranging reversing valve 413 is connected to one air port of the rodless cylinder 411, and the second air outlet end of the sheet arranging reversing valve 413 is connected to the other air port of the rodless cylinder 411. A speed regulating valve 414 is further installed at the two air ports of the rodless cylinder 411. The beneficial effects of the above technical solution are: the pneumatic linear displacement mechanism of the rodless cylinder helps to make the chuck device portable.

[0044] As Figure 9 shown in the utility model, in still other embodiments of the utility model, the quick positioning structure comprises a positioning iron plate 4112 fixedly installed on the slider of the linear displacement mechanism 41 and a magnet 422 and a positioning pin 423 fixedly installed on the lower surface of the ceramic sheet arranging box 42, and the positioning iron plate 4112 is provided with a positioning hole matched with the positioning pin 423. The beneficial effects of the above technical solution are: the quick butt joint of the ceramic sheet arranging box and the chuck device is facilitated, and the work efficiency is improved.

[0045] As Figure 12As shown, in some other embodiments of the present application, the thickness of the ceramic sheet 50 is d, the groove depth of the second ceramic sheet positioning groove 311 of the ceramic sheet placing seat is a, the distance between the bottom surface of the laminated cavity of the ceramic sheet arranging box 42 and the upper surface of the ceramic sheet placing seat 31 is b, then 0 < a < d, d-a < b < 2d-a. The chamfered surface 424 is provided on the two side edges of the lower opening of the laminated cavity 421 and perpendicular to the moving direction of the ceramic sheet arranging box, the included angle between the chamfered surface 424 and the horizontal plane is 40-60°, the distance of the chamfered surface 424 in the height direction is c, then c = 2d-a-b+0.2mm. The beneficial effect of the above technical scheme is that it helps the bottom ceramic sheet to enter the second ceramic sheet positioning groove obliquely at the front end in the forward direction, and improves the smoothness and reliability of the ceramic sheet placement.

[0046] The method for coating heat-conducting silicone grease on the ceramic sheet of a heat sink comprises the following steps:

[0047] Step 1, the first ceramic sheet positioning groove of the heat sink is divided into multiple areas, a relay positioning frame is made, the relay positioning frame is designed with through positioning openings matched with the multiple areas, a suction cup device matched with the through positioning openings is made, and the position of the second ceramic sheet positioning groove on the suction cup device is matched with the first ceramic sheet positioning groove in the through positioning opening;

[0048] Step 2, the relay positioning frame is placed on the heat sink in alignment;

[0049] Step 3, the ceramic sheet is placed in the second ceramic sheet positioning groove of the ceramic sheet placing seat of the suction cup device, the gas total channel is vacuumized through the gas control mechanism, the ceramic sheet is adsorbed and pressed against the second ceramic sheet positioning groove by the vacuum suction cup, and the first surface of the ceramic sheet exposed outside is coated with heat-conducting silicone grease;

[0050] Step 4, the suction cup device is turned over by 180 degrees and placed in the through positioning opening of the relay positioning frame;

[0051] Step 5, the gas total channel is blown by the gas control mechanism, the ceramic sheet is blown into the first ceramic sheet positioning groove on the heat sink by the airflow in the vacuum suction cup, and the suction cup device is taken away;

[0052] Step 6, the second surface of the ceramic sheet exposed outside is coated with heat-conducting silicone grease.

[0053] Further, in step 3, the ceramic sheet is placed in the second ceramic sheet positioning groove of the ceramic sheet placing seat of the suction cup device, specifically including: the ceramic sheets are stacked in the laminated cavity of the ceramic sheet arranging box, the ceramic sheet arranging box is positioned and installed with the slider of the linear displacement mechanism, the linear displacement mechanism is started, and the ceramic sheets enter the second ceramic sheet positioning grooves of the suction cup device in sequence.

[0054] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable the ordinary skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application, and any equivalent changes or modifications according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A pneumatic device for applying thermally conductive silicone grease to ceramic radiator plates, characterized in that, The application relates to a heat sink, a relay positioning frame and a suction disc device. The heat sink has a surface provided with a plurality of first ceramic sheet positioning grooves for arranging ceramic sheets. The suction disc device comprises a ceramic sheet placing seat, a suction disc mounting seat, a cover plate and a gas control mechanism. The bottom of the ceramic sheet placing seat is provided with positioning structures matched with the through positioning openings.

2. The heat spreader ceramic tile coated brush thermal grease aerodynamic device of claim 1, wherein, The bottom surface of the ceramic sheet placing seat is provided with a plurality of second ceramic sheet positioning grooves for placing ceramic sheets.

3. The heat spreader ceramic tile coated brush thermal grease aerodynamic device of claim 1, wherein, The second ceramic sheet positioning grooves are vertically arranged with the first ceramic sheet positioning grooves on the heat sink.

4. The heat spreader ceramic tile coated brush thermal grease aerodynamic device of claim 1, wherein, The center of the second ceramic sheet positioning grooves is vertically provided with a through suction disc hole. The suction disc mounting seat is mounted above the ceramic sheet placing seat. The lower surface of the suction disc mounting seat is provided with a plurality of downwardly extending suction disc mounting columns. The center of the suction disc mounting columns is vertically provided with a gas sub-channel. A vacuum suction disc is mounted below the suction disc mounting columns. The cover plate is arranged above the suction disc mounting seat. A gas main channel is arranged between the cover plate and the suction disc mounting seat and is communicated with all the gas sub-channels. The gas control mechanism is communicated with the gas main channel. The gas control mechanism is used for controlling vacuum extraction or gas blowing in the gas main channel. The gas control mechanism comprises a gas pump, an air inlet switch, a reversing valve and a vacuum generator. The reversing valve has an air inlet, a first air outlet and a second air outlet. The reversing valve is used for controlling the air inlet to be separately communicated with the first air outlet or the second air outlet. The air outlet of the gas pump is connected to the air inlet of the air inlet switch through a pipeline. The air outlet of the air inlet switch is connected to the air inlet of the reversing valve through a pipeline. The first air outlet of the reversing valve is communicated with the gas main channel of the suction disc device through a first branch pipeline. The second air outlet of the reversing valve is connected to the air inlet end of the vacuum generator through a second branch pipeline. The air outlet end of the vacuum generator is connected to the atmosphere. The vacuum end of the vacuum generator is communicated with the gas main channel of the suction disc device. A sealing ring is arranged between the vacuum suction disc and the suction disc mounting column. A sealing gasket is arranged between the cover plate and the suction disc mounting seat and surrounds the outer edge of the gas main channel.

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