CN212174429U

CN212174429U - A partial shipment device that is used for high thick heat conduction thick liquids of small batch volume

Info

Publication number: CN212174429U
Application number: CN202020398853.6U
Authority: CN
Inventors: 杨小王
Original assignee: SAILUN (XIAMEN) NEW MATERIAL TECHNOLOGY CO LTD
Current assignee: SAILUN (XIAMEN) NEW MATERIAL TECHNOLOGY CO LTD
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2020-12-18
Anticipated expiration: 2030-03-25

Abstract

The utility model provides a partial shipment device of high viscous heat conduction thick liquids of small batch volume shifts joint, front end ring rubber pad, storage tank, crowded material sleeve, rear end ring rubber pad, compressed air trachea by the point and constitutes. Compared with the traditional subpackaging process, the device removes bubbles through vacuum bubble removal and vibration bubble removal successively, the bubbles are removed more thoroughly, the subpackaging process system is closed, bubbles cannot be mixed, and subpackaged materials are continuously free of cavities. In addition, the split charging and manufacturing cost is low compared with that of a hydraulic machine.

Description

A partial shipment device that is used for high thick heat conduction thick liquids of small batch volume

Technical Field

The invention relates to a split charging device of small-batch high-viscosity heat conduction slurry for heat dissipation of power electronic devices and modules.

Background

The high-viscosity heat-conducting slurry such as the heat-conducting glue, the heat-conducting gel, the heat-conducting mud and the like is generally used for heat dissipation of gaps of power electronic components and modules, can fill various uneven interfaces, and has the characteristics of strong wettability, good gap adaptability and high heat dissipation efficiency. When the high-viscosity heat-conducting slurry is applied, the coating can be performed manually, the automatic dispensing can be performed by a dispenser, the automatic dispensing efficiency is high, and the syringe packaging of 30CC, 50CC and 330CC is required. The syringe glue filling machine on the market is suitable for packaging low-viscosity glue liquid, the viscosity of the glue liquid is less than 100,000mPa.s, and for high-viscosity heat-conducting slurry with the viscosity of more than 10,000,000mPas, the fluidity is poor, the pressure is high during extrusion, bubbles are easy to mix during filling, and cavities are generated among the materials. In the traditional process, a discharge hole is formed in the wall or the bottom of a stirring cylinder, a discharge pipe is connected, and a hydraulic material beating machine is used for extrusion, so that the filling mode is suitable for the production of large-batch high-viscosity heat-conducting slurry. For a high-viscosity heat-conducting slurry sample manufactured in a laboratory, in order to reduce the sample preparation cost, the sample quality is generally 300-1000g, the heat-conducting slurry is directly filled into a packaging needle cylinder of 30CC and 50CC, a plurality of bubbles are mixed, the discontinuous dispensing is caused, the spot quantity is unstable, and the heat-conducting slurry splashes to influence the use. After vacuumizing and defoaming, the material is extruded and filled by a hydraulic material filling machine, the cost is higher, the volume of a material cylinder of the hydraulic material filling machine is 2L at the minimum, the diameter of the bottom of the material cylinder is large, 500-1000g of material is filled, and when the material is extruded to the bottom, more excess material is left at the bottom of the material cylinder. The heat-conducting slurry is transferred into the 300CC needle cylinder after being vacuumed and defoamed, the bubbles are easily mixed in the process, in addition, the 300CC needle cylinder is filled with the high-viscosity heat-conducting slurry with the deep height which is more than 250mm, the heat-conducting slurry in the high viscosity is not easy to discharge no matter vacuumization or vibration, the vibration time is long, the discharge opening at the head part of the needle cylinder is easy to deform, and the joint can not be connected with a material transfer joint. To above defect, the utility model provides a partial shipment device and technology of high viscous heat conduction thick liquids of small batch volume, with high viscous heat conduction thick liquids evacuation back, rethread device vibration removes the bubble, extrude high viscous heat conduction thick liquids through compressed air, partial shipment is to 30CC, in the 50CC cylinder, the partial shipment in-process system is airtight, can not sneak into the bubble, high viscous heat conduction thick liquids in the cylinder are continuous, do not have the cavity, high viscous heat conduction thick liquids that automatic point gum machine extruded are continuous, relative hydraulic pressure is crowded material, low in manufacturing cost, in addition, container bottom clout is few, the waste rate is low, and is efficient.

Disclosure of Invention

The utility model provides a partial shipment device of high viscous heat conduction thick liquids of small batch volume compares traditional partial shipment technology, and the device is successively through the vacuum bubble removal, the vibration removes the bubble, it is more thorough to remove the bubble, the vibration removes the bubble in-process, avoid the partial shipment discharge gate to warp, influence the material and shift the articulate, the process system is airtight, can not sneak into the bubble, do not have the cavity, the high viscous heat conduction thick liquids that the automatic point gum machine extruded are continuous, the syringe head encapsulating is glued from the point to traditional technology relatively, divide the filling efficient, in addition relatively with crowded material partial shipment machine partial shipment of hydraulic pressure with low costs, the partial shipment clout is few.

In order to realize above-mentioned technological advantage, the utility model provides a partial shipment device of high viscous heat conduction thick liquids of small batch volume, its characterized in that, this partial shipment device is by the point glue cylinder, material shift joint, front end ring rubber pad, storage tank, crowded material sleeve, rear end ring rubber pad, compressed air trachea is constituteed.

A split charging device for small-batch high-viscosity heat-conducting slurry is characterized in that a storage tank in the split charging device consists of a discharge pipe at the bottom of the storage tank, a material blocking plug at the bottom of the storage tank, a storage tank body and a material pushing piston of the storage tank, wherein the wall thickness of the storage tank body in the storage tank is 2-3mm, the length of the storage tank body is 100-120mm, the inner diameter of the storage tank body is 30-80mm, the material pushing piston of the storage tank is positioned at the upper part of the storage tank, the material is PP, the length of the storage tank body is 20mm, and the outer; the material storage tank bottom discharge pipe is located at the bottom of the material storage tank, the inner diameter is 3-8mm, the length is 10-13mm, the material storage tank bottom blocking plug is made of PA solid materials and inserted into the material storage tank bottom discharge pipe, the outer diameter is 3-8mm, and the length is 12-15 mm.

The split charging device for the small-batch high-viscosity heat-conducting slurry is characterized in that a material extruding sleeve in the split charging device consists of a material discharging pipe at the front part of the material extruding sleeve, a material extruding sleeve barrel body and a material extruding sleeve tail cover. The material extruding sleeve is made of PA material, the wall thickness is 2-8mm, the inner diameter of a discharge pipe at the front part of the material extruding sleeve is 5-10mm, and the length is 12-15 mm; the inner diameter of the barrel body of the material extruding sleeve is 34-86mm, and the length is 100-120 mm; the inner diameter of the tail cover of the extrusion sleeve is 38-102mm, the length is 20-25mm, the middle position of the tail cover of the extrusion sleeve is provided with a compressed air interface, and the inner diameter of the interface is 4-5 mm.

The split charging device for the small-batch high-viscosity heat-conducting slurry is characterized in that the annular rubber pads comprise a front annular rubber pad and a rear annular rubber pad, the front annular rubber pad and the rear annular rubber pad are identical in size, and the outer diameter of the front annular rubber pad is 34-86mm, the inner diameter of the front annular rubber pad is 10-60.5mm, and the thickness of the front annular rubber pad and the rear annular rubber pad is 2-3 mm.

A split charging device for small-batch high-viscosity heat-conducting slurry is characterized in that a material transfer joint is made of PP and comprises a front material pipe and a rear material pipe, the outer diameter of the front material pipe of the material transfer joint is 10-22.5mm, the length of the front material pipe of the material transfer joint is 10-20mm, the outer diameter of the rear material pipe of the material transfer joint is 3-8mm, and the length of the rear material pipe of the material transfer joint is 15 mm.

The split charging device for the small-batch high-viscosity heat-conducting slurry is characterized in that the glue dispensing needle cylinder consists of a glue dispensing needle cylinder plug, a glue dispensing needle cylinder body, a glue dispensing needle cylinder piston and a glue dispensing needle cylinder tail cover.

The tail of the dispensing needle cylinder is connected with the front material pipe of the material transfer joint, the rear material pipe of the material transfer joint is connected with a discharge pipe at the bottom of the storage tank, high-viscosity heat-conducting slurry is located in the storage tank, the storage tank is located in the material extruding sleeve, an annular rubber pad is arranged around the storage tank, after the annular rubber pad is tightly pressed, the air tightness between the storage tank and the material extruding sleeve is good, air leakage cannot occur, and the tail of the material extruding sleeve is connected with a compressed air pipe to lead to compressed air.

Different from the traditional process, the high-viscosity heat-conducting slurry is filled into a storage tank, air bubbles are discharged in vacuum under the pressure of minus 0.08 to minus 0.1MPa, then the storage tank is vertically placed into an extruding sleeve, an annular rubber pad is placed between the bottom of the storage tank and the tail of the extruding sleeve, the extruding sleeve and the storage tank are lifted to vibrate up and down on a flat table, the high-viscosity heat-conducting slurry moves downwards due to high density, the air bubbles move upwards due to low density, the vibration is carried out until no air bubbles overflow from the surface of the high-viscosity heat-conducting slurry, then the storage tank is taken out from the extruding sleeve, a material pushing piston is pressed into the upper part of the storage tank, a material blocking plug at the bottom of the storage tank is taken out from a discharge pipe at the bottom of the storage tank, the storage tank is placed into the extruding sleeve again, a discharge pipe at the bottom of the storage tank is connected with a material transfer joint rear section material pipe, a front section material transfer joint material pipe is, the tail cover of the material extruding sleeve is connected with a compressed air pipe in a screwing way, and compressed air is introduced. The compressed air pushes the material storage tank to push the material pushing piston, the material storage tank pushes the high-viscosity heat-conducting slurry to enter the material transfer joint from the discharging pipe at the bottom of the material storage tank and then enter the glue dispensing needle cylinder, when the high-viscosity heat-conducting slurry reaches the head of the glue dispensing needle cylinder, the compressed air stops being introduced, the glue dispensing needle cylinder is taken down, and the glue dispensing needle cylinder plug, the glue dispensing needle cylinder piston and the glue dispensing needle cylinder tail cover are installed.

The viscosity of the high-viscosity heat-conducting slurry is larger than 1000,000mPas, the fluidity is poor, bubbles are difficult to discharge cleanly by vacuumizing and defoaming, the bubbles are removed by vibration, the heat-conducting slurry moves towards the bottom of the storage tank, the bubbles move upwards, and the defoaming is more thorough. In the vibration defoaming process, the discharge pipe at the bottom of the storage tank can not expose out of the contact table top, so that the damage and deformation are avoided, and the material transfer and joint rear-section material pipe connection is not influenced. The subpackaging process is closed, no air bubbles are mixed, no cavity exists in the heat-conducting slurry in the needle cylinder after subpackaging, and the slurry extruded by the automatic dispenser is continuous. Traditional handicraft is from a point glue cylinder head encapsulating, because high viscous heat conduction thick liquids mobility is poor, the syringe needle internal diameter is little, and it is slower to flow, and the partial shipment is long consuming time, the utility model provides a partial shipment device is from a point glue cylinder afterbody filling, divides the filling efficient. A metal material cylinder and a hydraulic machine are required to be customized for filling by using a hydraulic machine, the volume of the material cylinder is generally more than 2L and is used for subpackaging 1000g of 500-fold high-viscosity heat-conducting slurry, and the residual material at the bottom of the cylinder exceeds 200 g. The utility model provides a partial shipment device is plastic products, and manufacturing cost is low relatively, and the storage tank volume is less than 0.7L, and the partial shipment is accomplished the back storage tank bottom surplus and is less than 20 g.

Drawings

FIG. 1 is a process diagram of the high viscosity heat conductive slurry split charging process of the present invention;

FIG. 2 is a schematic view of the storage tank of the present invention;

fig. 3 is a schematic view of a material transfer joint structure in the present invention;

FIG. 4 is a schematic view of the structure of the extruding sleeve of the present invention;

fig. 5 is a schematic view of the structure of the dispensing syringe of the present invention;

in the figure: 1 a glue dispensing needle cylinder,

2, a material transferring joint is arranged on the material,

3 an annular rubber pad at the front end of the rubber pad,

4 high-viscosity heat-conducting slurry,

5 a material storage tank is arranged on the upper portion of the material storage tank,

6, extruding the material from the sleeve barrel,

7 an annular rubber pad at the rear end of the rubber pad,

8, a compressed air pipe is arranged in the air pipe,

9 a discharge pipe is arranged at the bottom of the material storage tank,

10 a material storage pipe bottom discharge pipe blocking plug,

11 a material storage tank body is arranged on the upper portion of the material storage tank,

12 a material pushing piston of the material storage tank,

13 a material pipe at the front section of the material transfer joint,

a material pipe at the rear section of the 14-material transfer joint,

15 a discharge pipe at the front part of the extrusion sleeve,

16 extruding the material from the sleeve barrel body,

17 extruding the tail cover of the sleeve barrel,

18 the plug of the needle head is glued with glue,

19 the glue dispensing syringe cylinder body is arranged,

20 the piston of the glue dispensing syringe,

21 dispensing the tail cover of the syringe.

Detailed Description

In order to make the technical contents and features of the present invention more comprehensible, the following description is given in detail with reference to the accompanying drawings.

The wall thickness of a storage tank body 11 in the storage tank 5 is 2mm, the length is 120mm, the inner diameter is 80mm, a storage tank pushing piston 12 is positioned at the upper part of the storage tank 5, the material is PP, the length is 20mm, and the outer diameter is 80 mm; storage tank bottom discharge tube 9 is located storage tank 5 bottoms, internal diameter 8mm, length 13mm, and storage tank bottom putty stopper 10 inserts storage tank bottom discharge tube 9 for the solid material of PA, external diameter 8mm, length 15 mm. The material extruding sleeve 6 is made of PA material, the wall thickness is 2mm, the inner diameter of a material discharging pipe 15 at the front part of the material extruding sleeve is 10mm, and the length is 15 mm; the inner diameter of the barrel 16 of the extruding sleeve is 85mm, and the length is 120 mm; the inner diameter of the tail cover 17 of the extruding sleeve is 89mm, the length of the tail cover is 20mm, a compressed air interface is arranged in the middle of the tail cover, and the inner diameter of the interface is 5 mm. The front annular rubber pad 3 and the rear annular rubber pad 7 are the same in size, and have the outer diameter of 85mm, the inner diameter of 60.5mm and the thickness of 2 mm. 500g of high-viscosity heat-conducting slurry 4 is transferred into a storage tank 5, defoaming is carried out for 10 minutes under the pressure of minus 0.1MPa, then the storage tank 5 is vertically arranged in an extruding sleeve 6, a front annular rubber pad 3 is arranged at the bottom of the storage tank 5, the extruding sleeve 6 and the storage tank 5 are lifted up to reciprocate up and down on a flat table, when no air bubbles overflow from the surface of the high-viscosity heat-conducting slurry, the storage tank 5 is taken out of the extruding sleeve 6, a storage tank pushing piston 12 is pressed into the upper part of the storage tank, a storage tank bottom blocking plug 10 is pulled out from a discharge pipe 9 at the bottom of the storage tank, the storage tank 5 is placed in the extruding sleeve 6 again, the front annular rubber pad 3 is arranged at the bottom of the storage tank 5, a rear annular rubber pad 7 is arranged at the tail part of the storage tank 5, and a tail cover 17 of the extruding sleeve is covered and compressed. The material shifts and connects 2 materials and be PP, and the material shifts and connects anterior segment material pipe 13 external diameter 22.5mm, length 10mm, and the material shifts and connects posterior segment material pipe 14, external diameter 8mm, length 15 mm. The volume of the dispensing needle cylinder 1 is 50CC, the inner diameter is 22.5mm, the plug 18 of the dispensing needle cylinder, the piston 20 of the dispensing needle cylinder and the tail cover 21 of the dispensing needle cylinder are taken down, the front section material pipe 13 of the material transfer joint is connected with the tail part of the dispensing needle cylinder 1, the rear section material pipe 14 of the material transfer joint is connected with the discharge pipe 9 at the bottom of the material storage tank, and the tail cover 17 of the material extruding sleeve is connected with the compressed air pipe 8. Compressed air is introduced from a compressed air pipe 8 to push a material storage tank pushing piston 10, the material storage tank pushing piston 10 pushes high-viscosity heat-conducting slurry 4 to enter a material transfer connector 2 from a material storage tank bottom discharge pipe 9 and then enter a glue dispensing needle cylinder 1, when the high-viscosity heat-conducting slurry 4 reaches the head of the glue dispensing needle cylinder, the compressed air is stopped being introduced, the glue dispensing needle cylinder 1 is taken down, and a glue dispensing needle cylinder plug 18, a glue dispensing needle cylinder piston 20 and a glue dispensing needle cylinder tail cover are installed.

Through the technical scheme, compare the manual partial shipment of tradition, the utility model provides a partial shipment device removes the bubble through evacuation, vibration twice, removes the bubble thoroughly, and the high viscous heat conduction thick liquids that glue in the cylinder are glued to the point do not have the bubble, and thick liquids are continuous, and the point is glued and can not expect absolutely, and partial shipment is efficient, compares machine hydraulic filling, and is with low costs, efficient.

The technical content and the technical features of the invention have been disclosed above, but those skilled in the art can still make various substitutions and modifications based on the disclosure and the inspiration of the invention without departing from the spirit of the invention. Therefore, the protection scope of the present invention should not be limited to the embodiments shown, but includes various alternatives and modifications without departing from the present invention, and is covered by the claims.

Claims

1. The utility model provides a partial shipment device of high thick heat conduction thick liquids of small batch volume which characterized in that: the split charging device consists of a glue dispensing needle cylinder, a material transfer joint, a front annular rubber pad, a material storage tank, a material extruding sleeve, a rear annular rubber pad and a compressed air pipe; the dispensing needle cylinder is connected with a material storage tank through a material transfer joint, the material storage tank is positioned in an extruding sleeve, a front annular rubber pad and a rear annular rubber pad are respectively arranged at the front and the rear of the material storage tank, and the extruding sleeve is connected with a compressed air pipe; the material transfer joint is made of PP and consists of a front material pipe and a rear material pipe, the outer diameter of the front material pipe of the material transfer joint is 10-22mm, the length of the front material pipe of the material transfer joint is 10-20mm, the outer diameter of the rear material pipe of the material transfer joint is 3-8mm, and the length of the rear material pipe of the material transfer joint is 15 mm; the storage tank consists of a storage tank bottom discharge pipe, a storage tank bottom blocking plug, a storage tank body and a storage tank pushing piston, wherein the storage tank bottom discharge pipe is positioned at the bottom of the storage tank, the inner diameter is 3-8mm, the length is 10-13mm, the storage tank bottom blocking plug is made of PA solid material, the PA solid material is inserted into the storage tank bottom discharge pipe, the outer diameter is 3-8mm, the length is 12-15mm, the wall thickness of the storage tank body is 2-3mm, the length is 100 plus 120mm, the inner diameter is 30-80mm, the storage tank pushing piston is positioned at the upper part of the storage tank, the material is PP, the length is 20mm, and the outer diameter is 30-80 mm; the material extruding sleeve consists of a material outlet pipe at the front part of the material extruding sleeve, an extruding sleeve barrel body and an extruding sleeve tail cover, wherein the inner diameter of the material outlet pipe at the front part of the material extruding sleeve is 5-10mm, the length of the material extruding sleeve barrel body is 12-15mm, the material extruding sleeve barrel body is made of PA material, the wall thickness is 2-8mm, the inner diameter is 34-86mm, the length of the material extruding sleeve barrel body is 100-120mm, the inner diameter of the extruding sleeve tail cover is 38-102mm, the length of the extruding sleeve barrel body is 20-25mm, a compressed air interface; the front annular rubber pad and the rear annular rubber pad are the same in size, and have the outer diameter of 34-86mm, the inner diameter of 10-60.5mm and the thickness of 2-3 mm.