A sintering furnace for DBC substrate production

Abstract

The utility model relates to sintering furnace field discloses a kind of sintering furnace for DBC substrate production, including sintering furnace body, the right side of sintering furnace body is provided with settling tank, sintering furnace body is connected with settling tank by gas pipeline, the top of settling tank is provided with driving mechanism, the inside of settling tank is provided with settling mechanism, and the settling mechanism includes settling plate one, settling plate two and cross plate, and the settling plate one and settling plate two are hinged, and the end, far from settling plate two, of settling plate one is hinged with moving block, and the end, far from settling plate one, of settling plate two is hinged with moving block.The utility model in, by the settling plate one and settling plate two of inclination setting in settling mechanism, so that large particle size waste gas particle inertia collision loss kinetic energy, thereby to larger particle size solid particle carries out primary settling, by dust catcher to flue gas carries out fine secondary filtration, filters out smaller particle size solid particle in flue gas, and further improves filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of sintering furnaces, and more particularly to a sintering furnace for the production of DBC substrates. Background Technology

[0002] DBC substrate is a high-performance heat dissipation substrate used in electronic devices, typically in power modules and other high-power electronic applications. During the manufacturing process of DBC substrate, copper foil and ceramic substrate are firmly bonded together through high-temperature sintering. Therefore, a sintering furnace is used. The sintering furnace provides a high-temperature and high-pressure environment, which makes the bond between copper foil and ceramic substrate stronger.

[0003] A search revealed that Chinese Patent Publication No. CNN221764186U discloses a sintering furnace for DBC substrate production, comprising a furnace body, a furnace door rotatably connected to the front side of the furnace body, a plurality of evenly distributed support legs fixedly connected to the bottom of the furnace body, and a purification assembly provided on the rear side of the furnace body. The purification assembly includes an air inlet pipe, one end of which is fixedly connected to the rear side of the furnace body, and the other end of which is fixedly connected to a purification box. A filter plate is fixedly connected inside the purification box.

[0004] The aforementioned patent uses activated carbon filter plates for purification, which are then discharged through an exhaust pipe, protecting the surrounding environment and personnel. Electric push rods, scrapers, springs, brushes, and baffles clean impurities from the filter plates out of the purification chamber, preventing clogging and loss of filtration effectiveness. However, the exhaust gas generated after high-temperature sintering in the sintering furnace contains a significant amount of solid particulate matter. Filtering with only a single filter plate cannot differentiate between solid particles of different sizes. For extremely small solid particles in the exhaust gas, the filter plate's filtration effect is poor, while larger solid particles easily get stuck in the filter plate's pores, thus reducing the filtration and dust removal efficiency. Therefore, a sintering furnace for DBC substrate production is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sintering furnace for the production of DBC substrates, which aims to improve the problem in the prior art that "it is impossible to distinguish and process solid waste gas particles of different sizes by filtering only through a single filter plate".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sintering furnace for DBC substrate production, comprising a sintering furnace body, a settling box disposed on the right side of the sintering furnace body, the sintering furnace body being connected to the settling box via a gas supply pipe, a driving mechanism disposed on the top of the settling box, and a settling mechanism disposed inside the settling box, the settling mechanism comprising a first settling plate, a second settling plate, and a horizontal plate, the first settling plate and the second settling plate being hinged together, a moving block being hinged to the end of the first settling plate away from the second settling plate, and the end of the second settling plate away from the first settling plate being hinged to the moving block, the outer wall of the moving block being slidably connected to the inner wall of the horizontal plate, a guide rod being slidably connected to the inner wall of the moving block, the guide rod being fixedly connected to the inner wall of the horizontal plate, and a recycling mechanism disposed on the right side of the settling box.

[0007] As a further description of the above technical solution:

[0008] The drive mechanism includes an electric cylinder, which is fixedly connected to the top of the settling tank, and a transmission shaft is fixedly connected to the bottom of the output shaft of the electric cylinder.

[0009] As a further description of the above technical solution:

[0010] The drive mechanism also includes a crossbar, which is fixedly connected to the bottom of the drive shaft, and the bottom of the drive shaft is fixedly connected to the top of the crossbar at the middle.

[0011] As a further description of the above technical solution:

[0012] The left side surface of the crossbar is hinged to the back of the second settling plate, and the right side surface of the crossbar is hinged to the back of the first settling plate.

[0013] As a further description of the above technical solution:

[0014] The recycling mechanism includes a water tank, the left side of which is connected to the right side of a settling tank via a delivery pipe.

[0015] As a further description of the above technical solution:

[0016] The recycling mechanism also includes a heat exchange tube, one end of which is fixedly connected to the right side of the conveying pipe, and the other end of which is fixedly connected to a dust collector, which is fixedly connected to the top of the water tank.

[0017] As a further description of the above technical solution:

[0018] An exhaust pipe is fixedly connected to the right side of the dust collector, and a water supply pipe is fixedly connected to the right side of the water tank.

[0019] As a further description of the above technical solution:

[0020] The settling tank has a hinged door on the front.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by using the inclined settling plate one and settling plate two in the settling mechanism, large-diameter exhaust gas particles lose kinetic energy due to inertial collision, thereby performing primary settling of larger-diameter solid particles, reducing the workload of the subsequent dust collector, and the dust collector performs fine secondary filtration of the flue gas to remove smaller-diameter solid particles in the flue gas, further improving the filtration effect.

[0023] 2. In this utility model, by working the electric cylinder in the drive mechanism, the angle between the first settling plate and the second settling plate can be adjusted, which can change the flow path and speed of the flue gas in the settling box, thereby improving the control accuracy of the settling effect. By setting up a recovery mechanism, the water temperature in the water tank can be increased, which can be used for workers to wash their hands after work, thus realizing the recovery and utilization of energy. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0025] Figure 2 This is a three-dimensional cross-sectional view of the shell and settling mechanism in this utility model;

[0026] Figure 3 This is a three-dimensional cross-sectional view of the settling mechanism in this utility model;

[0027] Figure 4 This is a three-dimensional cross-sectional view of the recycling mechanism in this utility model.

[0028] Legend:

[0029] 1. Sintering furnace body; 2. Settling box; 3. Gas supply pipe; 4. Electric cylinder; 5. Drive shaft; 6. Crossbar; 7. Settling plate one; 8. Settling plate two; 9. Moving block; 10. Guide rod; 11. Horizontal plate; 12. Water tank; 13. Conveying pipe; 14. Heat exchange tube; 15. Dust collector; 16. Exhaust pipe; 17. Water supply pipe; 18. Box door. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 2 This utility model provides an embodiment of a sintering furnace for DBC substrate production, comprising a sintering furnace body 1, a settling box 2 on the right side of the sintering furnace body 1, the sintering furnace body 1 being connected to the settling box 2 via a gas supply pipe 3, the sintering furnace body 1 generating flue gas containing solid particles during operation entering the interior of the settling box 2 through the gas supply pipe 3, the right side of the gas supply pipe 3 being connected to the bottom left side of the settling box 2, so that the exhaust gas first enters the bottom left side of the settling box 2, a drive mechanism being provided on the top of the settling box 2, and a door 18 being hinged to the front of the settling box 2, which facilitates the cleaning of the flue gas settling inside the settling box 2 by opening the door 18, and a settling mechanism being provided inside the settling box 2.

[0032] Reference Figure 2 , Figure 3 The settling mechanism includes settling plate 7, settling plate 8, and a horizontal plate 11. Settling plate 7 and settling plate 8 are both set at an inclination. The length of settling plate 7 and settling plate 8 are equal. By setting settling plate 7 and settling plate 8 at an inclination, the flue gas collides with the surface of settling plate 7 and settling plate 8 when it passes near them, thereby reducing the kinetic energy of larger solid particles in the flue gas. This allows for primary settling of larger solid particles, reducing the workload of the subsequent dust collector 15 and increasing the service life of the dust collector 15. Settling plate 7 and settling plate 8 are hinged.

[0033] Reference Figure 2 , Figure 3 A movable block 9 is hinged to the end of the settling plate 7 away from the settling plate 8. The end of the settling plate 8 away from the settling plate 7 is hinged to the movable block 9. The outer wall of the movable block 9 is slidably connected to the inner wall of the horizontal plate 11. A guide rod 10 is slidably connected to the inner wall of the movable block 9 to guide the displacement direction of the movable block 9, thereby improving the displacement stability of the movable block 9 and making the movable block 9 move linearly in the axial direction of the guide rod 10. The guide rod 10 is fixedly connected to the inner wall of the horizontal plate 11. The number of horizontal plates 11 is set to two sets. By setting the horizontal plates 11, the movement path of the exhaust gas in the settling box 2 is S-shaped, which further prolongs the contact time between the flue gas and the settling plate and improves the settling effect. A recovery mechanism is set on the right side of the settling box 2.

[0034] Reference Figure 1 - Figure 3The drive mechanism includes an electric cylinder 4, which is fixedly connected to the top of the settling tank 2. The bottom of the output shaft of the electric cylinder 4 is fixedly connected to a vertically arranged transmission shaft 5. The electric cylinder 4 drives the transmission shaft 5 to move up and down linearly. The drive mechanism also includes a crossbar 6, which is fixedly connected to the bottom of the transmission shaft 5. The bottom of the transmission shaft 5 is fixedly connected to the top of the crossbar 6 at the middle. The left side surface of the crossbar 6 is hinged to the back of the second settling plate 8, and the right side surface of the crossbar 6 is hinged to the back of the first settling plate 7. The up and down displacement of the transmission shaft 5 increases or decreases the angle between the first settling plate 7 and the second settling plate 8.

[0035] Reference Figure 1 , Figure 4 The recovery mechanism includes a water tank 12, which is filled with liquid water for absorbing residual heat in the flue gas. The left side of the water tank 12 is connected to the right side of the settling tank 2 via a conveying pipe 13. The left side of the conveying pipe 13 is fixedly connected to the top right side of the settling tank 2. The recovery mechanism also includes a heat exchange tube 14, which is spirally ascending to increase the contact area between the surface of the heat exchange tube 14 and the liquid water inside the water tank 12, thereby improving the heat exchange efficiency. One end of the heat exchange tube 14 is fixedly connected to the right side of the conveying pipe 13.

[0036] Reference Figure 1 , Figure 4 The other end of the heat exchange tube 14 is fixedly connected to a dust collector 15. The dust collector 15 can be a bag filter, which can perform fine secondary filtration of the flue gas, filter out smaller solid particles in the flue gas, further improve the filtration effect, thereby reduce the pollution of the flue gas to the air and protect the health of the staff around the equipment. The dust collector 15 is fixedly connected to the top of the water tank 12. The right side of the dust collector 15 is fixedly connected to an exhaust pipe 16 for discharging the exhaust gas after two filtrations. The right side of the water tank 12 is fixedly connected to a water supply pipe 17. A valve is installed at the top of the water supply pipe 17. Water can be supplied to the inside of the water tank 12 through the water supply pipe 17 or the water inside the water tank 12 can be discharged to maintain its normal working condition.

[0037] Working principle: During operation, the sintering furnace body 1 generates waste gas containing solid particles during the high-temperature sintering of the DBC substrate. This waste gas enters the bottom left side of the settling tank 2 through the gas transmission pipe 3. As the waste gas flows along the S-shaped path, large-diameter particles settle due to inertial collision with the tilted settling plates 7 and 8. The waste gas that has undergone primary settling enters the spiral heat exchange tube 14 inside the water tank 12 through the transmission pipe 13. The residual heat in the waste gas is used to raise the water temperature in the water tank 12, recovering some of the remaining heat energy inside the waste gas, thus realizing energy recovery and utilization. The preheated water can be used for handwashing by staff after work. The remaining smaller particles of dust follow the waste gas and enter the dust collector 15 through the heat exchange tube 14 for fine filtration. After the initial settling by the settling mechanism and the fine filtration by the dust collector 15, the waste gas is discharged through the exhaust pipe 16, reducing air pollution and effectively protecting surrounding equipment and operators.

[0038] When the electric cylinder 4 in the drive mechanism is working, it can drive the transmission shaft 5 to move up and down linearly. Since the crossbar 6 is fixedly connected to the bottom of the transmission shaft 5, and the left side surface of the crossbar 6 is hinged to the back of the second settling plate 8, and the right side surface is hinged to the back of the first settling plate 7, the up and down displacement of the transmission shaft 5 will increase or decrease the included angle between the first settling plate 7 and the second settling plate 8. By adjusting the included angle between the first settling plate 7 and the second settling plate 8, the flow path and speed of the flue gas in the settling box 2 can be changed to adapt to the settling requirements under different working conditions and improve the control accuracy of the settling effect.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sintering furnace for DBC substrate production, comprising a sintering furnace body (1), characterized in that: A settling box (2) is provided on the right side of the sintering furnace body (1). The sintering furnace body (1) is connected to the settling box (2) through a gas supply pipe (3). A driving mechanism is provided on the top of the settling box (2). A settling mechanism is provided inside the settling box (2). The settling mechanism includes a settling plate one (7), a settling plate two (8), and a horizontal plate (11). The settling plate one (7) and the settling plate two (8) are hinged together. The settling plate one (7) A movable block (9) is hinged to one end away from the second settling plate (8). The end of the second settling plate (8) away from the first settling plate (7) is hinged to the movable block (9). The outer wall of the movable block (9) is slidably connected to the inner wall of the horizontal plate (11). A guide rod (10) is slidably connected to the inner wall of the movable block (9). The guide rod (10) is fixedly connected to the inner wall of the horizontal plate (11). A recycling mechanism is provided on the right side of the settling box (2).

2. A sintering furnace for DBC substrate production according to claim 1, characterized in that: The drive mechanism includes an electric cylinder (4), which is fixedly connected to the top of the settling tank (2), and a transmission shaft (5) is fixedly connected to the bottom of the output shaft of the electric cylinder (4).

3. A sintering furnace for DBC substrate production according to claim 2, characterized in that: The drive mechanism also includes a crossbar (6), which is fixedly connected to the bottom of the drive shaft (5), and the bottom of the drive shaft (5) is fixedly connected to the top of the crossbar (6).

4. A sintering furnace for DBC substrate production according to claim 3, characterized in that: The left side surface of the crossbar (6) is hinged to the back of the second settling plate (8), and the right side surface of the crossbar (6) is hinged to the back of the first settling plate (7).

5. A sintering furnace for DBC substrate production according to claim 1, characterized in that: The recycling mechanism includes a water tank (12), the left side of which is connected to the right side of the settling tank (2) via a conveying pipe (13).

6. A sintering furnace for DBC substrate production according to claim 5, characterized in that: The recycling mechanism also includes a heat exchange tube (14), one end of which is fixedly connected to the right side of the conveying pipe (13), and the other end of which is fixedly connected to a dust collector (15), which is fixedly connected to the top of the water tank (12).

7. A sintering furnace for DBC substrate production according to claim 6, characterized in that: An exhaust pipe (16) is fixedly connected to the right side of the dust collector (15), and a water supply pipe (17) is fixedly connected to the right side of the water tank (12).

8. A sintering furnace for DBC substrate production according to claim 1, characterized in that: The settling box (2) has a door (18) hinged to its front.

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