Composite sintering device for conductive silver paste

Abstract

The utility model relates to the technical field of composite sintering of conductive silver paste, and discloses a composite sintering device for conductive silver paste, which comprises a base, a tank body is fixed on the top surface of the base, the bottom surface of the tank body is open, a sintering structure is arranged in the tank body, and the sintering structure comprises a lower die arranged in the tank body. Through the arrangement of the sintering structure, a worker puts various silver pastes needing to be sintered on a base material, then puts the base material into the placing groove, and then starts the air cylinder to stretch out, and the air cylinder drives the upper mold to be close to the lower mold, so that the convex part enters the placing groove, and the conductive silver pastes in the placing groove are pressurized; meanwhile, the heating rod is started, the heating rod heats the conductive silver paste through heat conduction of the upper mold, contact and diffusion of silver particles in the conductive silver paste with different properties are promoted by combining pressure and temperature, the silver particles are combined more tightly, and therefore the composite sintering effect of the conductive silver paste is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to conductive silver paste composite sintering technical field especially relates to a kind of conductive silver paste composite sintering device. BACKGROUND

[0002] Conductive silver paste is composed of conductive phase silver powder, inorganic binder glass frit, organic carrier and trace additive for improving battery performance, during processing, conductive silver paste is usually heated to make silver particles combine to form a continuous conductive layer, this process is widely used in electronic industry to manufacture conductive circuits, contacts, electrodes and the like.

[0003] The existing low-temperature sintering conductive silver paste device (publication number: CN213815641U) has at least the following disadvantages: although the above device heats the conductive silver paste by the heater and uses the ultrasonic device to soften the effect of ultrasonic waves, the density of the raw materials increases during sintering, but when sintering different materials or different properties of silver paste, the effect of ultrasonic waves on different properties of conductive silver paste is different, and it is difficult to firmly combine different materials or properties of conductive silver paste by only using ultrasonic waves for auxiliary sintering, resulting in poor sintering effect of conductive silver paste, therefore, we propose the utility model. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a conductive silver paste composite sintering device.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A conductive silver paste composite sintering device, comprising a base, a tank body is fixed on the top surface of the base, the bottom surface of the tank body is open, a sintering structure is arranged in the tank body, the sintering structure comprises a lower mold arranged in the tank body, a placing groove is formed in the top surface of the lower mold, an upper mold is arranged above the lower mold, a heating cavity is arranged in the upper mold, and a plurality of heating rods are fixed in the heating cavity.

[0007] As a further scheme of the utility model, the bottom surface of the upper mold is fixed with a protruding part, the protruding part corresponds in shape to the placing groove, a gas cylinder is fixed on the top surface of the tank body, and the telescopic end of the gas cylinder penetrates through the top surface of the tank body and is fixed with the top surface of the upper mold.

[0008] As a further scheme of the utility model, two heat dissipation holes are formed in the top surface of the tank body, and a sealing cover is slidably inserted in each of the two heat dissipation holes.

[0009] As a further scheme of the utility model, the telescopic end of the air cylinder is fixed with a fixed plate, the top surface of the fixed plate is fixed with a connecting rod, the bottom surface of the sealing cover is fixed with a mounting cylinder, the connecting rod and the inside of the mounting cylinder are slidably inserted, the outer circular wall surface of the connecting rod is wound with a tension spring, the top end of the tension spring is fixed with the inside top surface of the mounting cylinder, and the bottom end of the tension spring is fixed with the outer circular wall surface of the connecting rod.

[0010] As a further scheme of the utility model, the outer circular wall surface of the tank body is provided with a feeding hole, the inside of the feeding hole is slidably inserted with a mounting door, and one side of the mounting door is fixed with one side of the lower mold.

[0011] As a further scheme of the utility model, the cross sections of the heat dissipation holes and the sealing cover are T-shaped, and the outer circular wall surface of the tank body is fixed with a temperature sensor.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The composite sintering device, through the setting of the sintering structure, the staff places various silver pastes needing sintering on the base material, then places the base material into the placing groove, and then the staff starts the air cylinder to extend, the air cylinder drives the upper mold to move close to the lower mold, so that the convex part enters the placing groove, thereby pressurizing the conductive silver paste in the placing groove, and simultaneously starting the heating rod, the heating rod heats the conductive silver paste through the heat conduction of the upper mold, and through the combination of pressure and temperature, the contact and diffusion between silver particles in the conductive silver paste of different properties are promoted, so that they form a more close combination, thereby improving the composite sintering effect of the conductive silver paste. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model provides a kind of conductive silver paste composite sintering device's structure schematic view;

[0015] Figure 2 The utility model provides a kind of conductive silver paste composite sintering device's split structure schematic view;

[0016] Figure 3 The utility model provides a kind of conductive silver paste composite sintering device's split structure schematic view at tank body;

[0017] Figure 4 The utility model provides a kind of conductive silver paste composite sintering device's split structure schematic view at upper mold;

[0018] Figure 5 The utility model provides a kind of conductive silver paste composite sintering device's split structure schematic view at mounting cylinder.

[0019] In the diagram: 1. Base; 2. Tank body; 201. Lower mold; 202. Placement slot; 203. Upper mold; 204. Heating cavity; 205. Heating rod; 206. Protrusion; 207. Cylinder; 3. Heat dissipation hole; 301. Sealing cover; 4. Fixing plate; 401. Connecting rod; 402. Mounting cylinder; 403. Tension spring; 5. Feed hole; 501. Mounting door; 6. Temperature sensor. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1-5 As shown, a conductive silver paste composite sintering device includes a base 1, a tank 2 fixed on the top surface of the base 1, the bottom surface of the tank 2 being open, and a sintering structure being provided inside the tank 2. The sintering structure includes a lower mold 201 disposed inside the tank 2, a placement groove 202 being provided on the top surface of the lower mold 201, an upper mold 203 being disposed above the lower mold 201, a heating cavity 204 being disposed inside the upper mold 203, and a plurality of heating rods 205 being fixed inside the heating cavity 204.

[0024] In the embodiment, the bottom surface of the upper mold 203 is fixed with a protruding part 206 corresponding to the shape of the placing groove 202, the top surface of the tank body 2 is fixed with a pneumatic cylinder 207, the telescopic end of the pneumatic cylinder 207 penetrates the top surface of the tank body 2 and is fixed with the top surface of the upper mold 203, the upper mold 203, the lower mold 201 and the protruding part 206 are all graphite materials, through the setting of the sintering structure, the staff places various silver pastes needing to be sintered on the base material, and then places the base material into the placing groove 202, then the staff starts the pneumatic cylinder 207 to extend, the pneumatic cylinder 207 drives the upper mold 203 to move close to the lower mold 201, so that the protruding part 206 enters the placing groove 202, so as to press the conductive silver paste in the placing groove 202, and at the same time, the heating rod 205 is started to heat the conductive silver paste through the heat conduction of the upper mold 203, so as to promote the contact and diffusion between the silver particles in the conductive silver paste with different properties, so that they form a more close combination, thereby improving the sintering effect of the conductive silver paste composite.

[0025] In the embodiment, two heat dissipation holes 3 are arranged on the top surface of the tank body 2, and a sealing cover 301 is slidably arranged in the heat dissipation holes 3, when the sintering of the conductive silver paste is completed, the staff can open the sealing cover 301 to quickly dissipate the heat in the tank body 2, so as to cool the sintered conductive silver paste.

[0026] In the embodiment, the telescopic end of the pneumatic cylinder 207 is fixed with a fixed plate 4, the top surface of the fixed plate 4 is fixed with a connecting rod 401, the bottom surface of the sealing cover 301 is fixed with a mounting cylinder 402, the connecting rod 401 is slidably arranged in the mounting cylinder 402, a tension spring 403 is wound on the outer circular wall surface of the connecting rod 401, the top end of the tension spring 403 is fixed with the inner top surface of the mounting cylinder 402, and the bottom end of the tension spring 403 is fixed with the outer circular wall surface of the connecting rod 401, when the telescopic end of the pneumatic cylinder 207 extends, the connecting rod 401 extends out of the mounting cylinder 402, the tension spring 403 is stretched, the sealing cover 301 is tightly combined with the inside of the heat dissipation hole 3, and the sealing of the tank body 2 is ensured, when the sintering is completed, the pneumatic cylinder 207 is retracted, the connecting rod 401 is retracted into the mounting cylinder 402, the tension spring 403 is retracted, and the top end of the connecting rod 401 drives the inner top surface of the mounting cylinder 402, so as to lift the sealing cover 301, thereby opening the heat dissipation hole 3 for heat dissipation, and the staff does not need to manually open and close the heat dissipation hole 3.

[0027] In the embodiment, the outer circular wall surface of the tank body 2 is provided with an inlet hole 5, and a mounting door 501 is slidably arranged in the inlet hole 5, one side of the mounting door 501 is fixed with one side of the lower mold 201, when the staff takes and places the conductive silver paste on the lower mold 201, the mounting door 501 can be pulled out to take out the lower mold 201, so as to facilitate the staff to take and place the conductive silver paste.

[0028] In the embodiment, the cross sections of the heat dissipation holes 3 and the sealing cover 301 are T-shaped, the outer circular wall surface of the tank body 2 is fixed with the temperature sensor 6, and the T-shaped design of the heat dissipation holes 3 and the sealing cover 301 can improve the sealing effect of the sealing cover 301 on the heat dissipation holes 3, and the temperature sensor 6 can facilitate the staff to master the temperature in the tank body 2.

[0029] Principle: in use, the staff places various silver pastes that need to be sintered on the base material, and then places the base material into the placing groove 202, and then the staff starts the cylinder 207 to extend, the cylinder 207 drives the upper mold 203 to move close to the lower mold 201, and the protruding part 206 enters the placing groove 202, so as to press the conductive silver paste in the placing groove 202, and at the same time, the heating rod 205 is started, the heating rod 205 heats the conductive silver paste through the heat conduction of the upper mold 203, and the combination of pressure and temperature promotes the contact and diffusion between silver particles in conductive silver pastes with different properties, so as to make them form a more close combination, thereby improving the composite sintering effect of the conductive silver paste, when the sintering of the conductive silver paste is completed, the staff can open the sealing cover 301 to quickly dissipate the heat in the tank body 2, so as to cool the sintered conductive silver paste, when the extension end of the cylinder 207 extends, the connecting rod 401 extends from the mounting cylinder 402, the tension spring 403 is stretched, the sealing cover 301 is tightly attached to the inside of the heat dissipation hole 3, and the sealing of the tank body 2 is ensured, when the sintering is completed, the cylinder 207 is retracted, the connecting rod 401 is retracted into the mounting cylinder 402, the tension spring 403 is retracted, and the top end of the connecting rod 401 drives the inner top surface of the mounting cylinder 402, so as to lift the sealing cover 301, thereby opening the heat dissipation hole 3 for heat dissipation, and the staff does not need to manually open and close the heat dissipation hole 3, when the staff takes and places the conductive silver paste on the lower mold 201, the staff can pull the mounting door 501 to take out the lower mold 201, so as to facilitate the staff to take and place the conductive silver paste, the T-shaped design of the heat dissipation hole 3 and the sealing cover 301 can improve the sealing effect of the sealing cover 301 on the heat dissipation hole 3, and the temperature sensor 6 can facilitate the staff to master the temperature in the tank body 2.

[0030] The basic principle and main features of the present application are shown and described, and the advantages of the present application are shown and described. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. An electrically conductive silver paste composite sintering device comprising a base (1), characterized in that: The top surface of the base (1) is fixed with a tank body (2), the bottom surface of the tank body (2) is open, the inside of the tank body (2) is provided with a sintering structure, the sintering structure comprises a lower mold (201) arranged in the tank body (2), the top surface of the lower mold (201) is provided with a placing groove (202), the upper side of the lower mold (201) is provided with an upper mold (203), the inside of the upper mold (203) is provided with a heating cavity (204), and the inside of the heating cavity (204) is fixed with a plurality of heating rods (205).

2. The electrically conductive silver paste composite sintering device according to claim 1, characterized in that, The bottom surface of the upper mold (203) is fixed with a protruding part (206), the protruding part (206) corresponds in shape to the placing groove (202), the top surface of the tank body (2) is fixed with a cylinder (207), the telescopic end of the cylinder (207) penetrates through the top surface of the tank body (2) and is fixed with the top surface of the upper mold (203).

3. The electrically conductive silver paste composite sintering device according to claim 2, characterized in that, The top surface of the tank body (2) is provided with two heat dissipation holes (3), and the inside of the two heat dissipation holes (3) is slidably inserted with a sealing cover (301).

4. The conductive silver paste composite sintering device according to claim 3, characterized in that, The telescopic end of the cylinder (207) is fixed with a fixed plate (4), the top surface of the fixed plate (4) is fixed with a connecting rod (401), the bottom surface of the sealing cover (301) is fixed with a mounting cylinder (402), the connecting rod (401) and the inside of the mounting cylinder (402) are slidably inserted, the outer circular wall surface of the connecting rod (401) is wound with a tension spring (403), the top end of the tension spring (403) is fixed with the inside top surface of the mounting cylinder (402), and the bottom end of the tension spring (403) is fixed with the outer circular wall surface of the connecting rod (401).

5. The conductive silver paste composite sintering device according to claim 4, characterized in that, The outer circular wall surface of the tank body (2) is provided with a feeding hole (5), the inside of the feeding hole (5) is slidably inserted with a mounting door (501), and one side of the mounting door (501) is fixed with one side of the lower mold (201).

6. The conductive silver paste composite sintering device according to claim 5, characterized in that, The cross section of the heat dissipation hole (3) and the sealing cover (301) is T-shaped, and the outer circular wall surface of the tank body (2) is fixed with a temperature sensor (6).

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