A silicon nitride ceramic microwave sintered element that is easy to dissipate heat

Abstract

The utility model relates to the technical field of silicon nitride ceramics, and discloses a silicon nitride ceramic microwave sintering element that is easy to dissipate heat, including a support frame and a first sintering box, a second sintering box is provided inside the first sintering box, a sintering door is provided at the front end of the second sintering box, a tray is provided inside the second sintering box, a microwave is provided at the upper end of the first sintering box, the output end of the microwave extends to the inside of the second sintering box, a protective outer box is provided at one end of the outer side of the first sintering box, and a heat dissipation mechanism is provided inside the protective outer box; the heat dissipation mechanism includes a heat dissipation box, a heat dissipation pipe is provided inside the heat dissipation box, a heat conductive gel is provided inside the heat dissipation box, the heat conductive gel is wrapped on the outside of the heat dissipation pipe, and heat dissipation fin plates are provided at both ends of the outer side of the heat dissipation box. In the utility model, by setting the heat dissipation mechanism, the inside of the first sintering box can be dissipated, the internal temperature of the first sintering box can be quickly reduced, the cooling time of the silicon nitride ceramics can be shortened, and the heat dissipation efficiency of the silicon nitride ceramics can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon nitride ceramics, in particular to a silicon nitride ceramic microwave sintering element which is convenient for heat dissipation. Background Art

[0002] Silicon nitride ceramics are a high-performance ceramic material with silicon nitride as the main component. It has excellent properties such as high temperature resistance, corrosion resistance and high strength, and performs well in high temperature, high pressure and corrosive environments. Silicon nitride ceramics are usually used to manufacture high-temperature tools, mechanical parts, bearings, etc., and are widely used in aerospace, automobile manufacturing, chemical industry and other fields.

[0003] The existing silicon nitride ceramic microwave sintering device is not convenient for dissipating heat from the ceramic after sintering, resulting in a long waiting time for the ceramic to cool down, which prolongs the heat dissipation time and affects the heat dissipation efficiency of the silicon nitride ceramic after sintering. Therefore, we propose a silicon nitride ceramic microwave sintering element that is easy to dissipate heat. Utility Model Content

[0004] The main purpose of the utility model is to provide a silicon nitride ceramic microwave sintered element which is convenient for heat dissipation and can effectively solve the technical problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a silicon nitride ceramic microwave sintering element that is easy to dissipate heat, including a support frame and a first sintering box, a box door is provided at the front end of the first sintering box, an insulation layer is provided on the inner wall of the first sintering box, a second sintering box is provided inside the first sintering box, a sintering door is provided at the front end of the second sintering box, a tray is provided inside the second sintering box, a microwave is provided at the upper end of the first sintering box, the output end of the microwave extends to the inside of the second sintering box, a protective outer box is provided at one end of the outer side of the first sintering box, a conveying pipeline is provided at one end of the protective outer box, and the conveying pipeline is connected to the first sintering box. The two parts are connected, an exhaust fan is provided on the outside of the conveying pipeline, a heat dissipation mechanism is provided inside the protective outer box, and one end of the heat dissipation mechanism is connected with the conveying pipeline; the heat dissipation mechanism includes a heat dissipation box, which is a ceramic hollow shell, the heat dissipation box is fixedly connected to the protective outer box, a heat dissipation pipe is provided inside the heat dissipation box, the heat dissipation pipe is an S-shaped circuitous pipe, one end of the heat dissipation pipe is fixedly connected to the conveying pipeline, a thermal conductive gel is provided inside the heat dissipation box, the thermal conductive gel is wrapped on the outside of the heat dissipation pipe, heat dissipation fin plates are provided at both ends of the outside of the heat dissipation box, one end of the heat dissipation fin plate is in contact with the thermal conductive gel, and the other end of the heat dissipation fin plate extends to the outside of the heat dissipation box.

[0006] Preferably, a heat dissipation groove is provided on the outer surface of the heat dissipation box, and the heat dissipation groove is a strip-shaped groove. By providing the heat dissipation groove, the contact area between the heat dissipation box and the external cold air flow can be increased, thereby improving the heat dissipation effect of the heat dissipation box.

[0007] Preferably, a heat conducting ring is provided on the outside of the heat dissipation pipe, and the heat conducting ring is fixedly connected to the heat dissipation pipe.

[0008] Preferably, the heat-conducting ring is an annular metal plate, and the outer surface of the heat-conducting ring is in contact with the heat-conducting gel. By providing the heat-conducting ring, the contact area between the heat-dissipating pipe and the heat-conducting gel can be expanded, thereby improving the heat dissipation effect of the heat-dissipating pipe.

[0009] Preferably, a protective shell is provided at the upper end of the microwave device, and the protective shell is fixedly connected to the first sintering box. By providing the protective shell, the protection effect can be increased to avoid damage to the microwave device.

[0010] Preferably, a heat dissipation groove is provided on the outside of the protective outer box, and the heat dissipation groove is connected to the inside of the protective outer box. By providing the heat dissipation groove, external cold air flow is facilitated to enter the inside of the protective outer box, thereby improving the heat dissipation efficiency.

[0011] Beneficial Effects

[0012] The utility model provides a silicon nitride ceramic microwave sintering element which is convenient for heat dissipation and has the following features:

[0013] Beneficial effects:

[0014] (1) This silicon nitride ceramic microwave sintering element that is easy to dissipate heat can, by setting a heat dissipation mechanism, draw the hot air flow inside the first sintering box into the heat dissipation mechanism for heat dissipation after the silicon nitride ceramic is sintered, thereby quickly reducing the temperature inside the first sintering box, shortening the cooling time of the silicon nitride ceramic, and improving the heat dissipation efficiency of the silicon nitride ceramic after sintering. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation mode of the utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the first sintering box of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the heat dissipation mechanism of the utility model.

[0019] Legend:

[0020] 1. Support frame; 2. First sintering box; 3. Box door; 4. Insulation layer; 5. Second sintering box; 6. Tray; 7. Microwave device; 8. Protective shell; 9. Protective outer box; 10. Conveying pipeline; 11. Exhaust fan; 12. Heat dissipation slot; 13. Heat dissipation box; 14. Heat dissipation pipe; 15. Thermal conductive gel; 16. Thermal conductive ring; 17. Heat dissipation fin plate; 18. Heat dissipation groove. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] Embodiment 1: A silicon nitride ceramic microwave sintered element that is easy to dissipate heat, such as Figure 1 - Figure 2 As shown, it includes a support frame 1, a first sintering box 2 is arranged on the upper end of the support frame 1, the first sintering box 2 is a hollow shell with an opening at the front end, the lower end of the first sintering box 2 is fixedly connected to the support frame 1, a box door 3 is arranged at the front end opening of the first sintering box 2, one end of the box door 3 is rotatably connected to the first sintering box 2, and a control switch is arranged at the outer end of the box door 3, a thermal insulation layer 4 is arranged on the inner wall surface of the first sintering box 2, and the thermal insulation layer 4 is fixedly connected to the inner wall of the first sintering box 2, a second sintering box 5 is arranged inside the first sintering box 2, the outer side of the second sintering box 5 is fixedly connected to the first sintering box 2 through a pressing block, a sintering door is arranged at the front end of the second sintering box 5, a tray 6 is arranged inside the second sintering box 5, the outer side of the tray 6 is fixedly connected to the second sintering box 5, and a groove for placing silicon nitride ceramics is arranged on the upper end of the first sintering box 2. A microwave 7 is arranged on the upper end of the first sintering box 2, and the microwave 7 is fixedly connected to the first sintering box 2 by bolts, and the output end of the microwave 7 passes through the first sintering box The box 2 is connected with the interior of the second sintering box 5, a protective shell 8 is provided on the upper end of the microwave device 7, and the protective shell 8 is sleeved on the upper end of the microwave device 7. The lower end of the protective shell 8 is fixedly connected to the first sintering box 2 by bolts. A protective outer box 9 is provided at one end of the outer side of the first sintering box 2. The protective outer box 9 is a hollow shell. A conveying pipe 10 is fixedly connected to one end of the protective outer box 9. The end of the conveying pipe 10 away from the protective outer box 9 is fixedly connected to the first sintering box 2. The conveying pipe 10 is connected with the outer cavity of the second sintering box 5. An exhaust fan 11 is provided at one end of the outer side of the conveying pipe 10 close to the protective outer box 9. The exhaust fan 11 is fixedly connected to the protective outer box 9 by bolts. The exhaust fan 11 is linearly connected to the external power supply through a wire. A heat dissipation mechanism is provided inside the protective outer box 9. One end of the heat dissipation mechanism is connected with the conveying pipe 10. A heat dissipation groove 12 is provided on the outside of the protective outer box 9. The heat dissipation groove 12 is a strip-shaped groove, and the heat dissipation groove 12 is connected with the inner cavity of the protective outer box 9.

[0023] Embodiment 2: A silicon nitride ceramic microwave sintered element for heat dissipation, based on the embodiment 1 Figure 1 - Figure 3As shown, the heat dissipation mechanism includes a heat dissipation box 13, which is a ceramic hollow shell. A heat dissipation gap is reserved between the heat dissipation box 13 and the protective outer box 9. The lower end of the heat dissipation box 13 is fixedly connected to the protective outer box 9. A heat dissipation pipe 14 is arranged inside the heat dissipation box 13. The heat dissipation pipe 14 is an S-shaped hollow circuitous pipe. One end of the heat dissipation pipe 14 is fixedly connected to the conveying pipe 10. The end of the heat dissipation pipe 14 away from the conveying pipe 10 passes through the protective outer box 9 and extends to the outside. The heat dissipation box 13 is evenly filled with a thermally conductive gel 15. The thermally conductive gel 15 is evenly wrapped around the outside of the heat dissipation pipe 14. A plurality of groups of thermally conductive rings 16 are arranged on the outside of the heat dissipation pipe 14. The thermally conductive ring 16 is an annular metal plate with good thermal conductivity. It is connected to the outside of the heat dissipation tube 14, the inner side of the heat-conducting ring 16 is fixedly connected to the heat dissipation tube 14, the outer side of the heat-conducting ring 16 is in contact with the thermally conductive gel 15, and heat dissipation fin plates 17 are arranged at both ends of the outer side of the heat dissipation box 13. The heat dissipation fin plates 17 are metal plates with good thermal conductivity. The heat dissipation fin plates 17 are fixedly connected to the heat dissipation box 13, one end of the heat dissipation fin plate 17 extends to the inside of the heat dissipation box 13 and contacts with the thermally conductive gel 15, and the other end of the heat dissipation fin plate 17 extends to the inside of the heat dissipation gap outside the heat dissipation box 13, and heat dissipation grooves 18 are arranged at both ends of the outer side of the heat dissipation box 13. The heat dissipation grooves 18 are strip-shaped grooves. The heat dissipation grooves 18 can increase the contact area between the heat dissipation box 13 and the external airflow, thereby improving the heat dissipation effect.

[0024] It should be noted that the utility model is a silicon nitride ceramic microwave sintering element that is easy to dissipate heat. When in use, the box door 3 is first opened, and then the silicon nitride ceramic to be sintered is placed on the upper end of the tray 6, and then the box door 3 is closed, and the microwave 7 is started to heat the inside of the second sintering box 5 to sinter the ceramic material. After the ceramic material is sintered, the microwave 7 is closed, the box door 3 is opened, and then the exhaust fan 11 is started. The input end of the exhaust fan 11 extracts the hot air flow inside the first sintering box 2 through the conveying pipeline 10 and conveys it to the heat dissipation pipe 1 4. The circuitous pipe of the heat dissipation pipe 14 can slow down the airflow velocity and improve the heat dissipation effect. During the flow of the hot air flow, the heat is transported to the outer surface of the heat dissipation box 13 and the heat dissipation fin plate 17 through the heat conductive gel 15 for heat dissipation. The heat conductive ring 16 arranged on the outer side of the heat dissipation pipe 14 can expand the contact area between the heat dissipation pipe 14 and the heat conductive gel 15, thereby improving the heat dissipation effect of the heat dissipation pipe 14. The heat dissipation groove 18 arranged on the outer side of the heat dissipation box 13 can increase the contact area between the heat dissipation box 13 and the external cold airflow, thereby improving the heat dissipation effect of the heat dissipation box 13. By setting up a heat dissipation mechanism, after the silicon nitride ceramic is sintered, the hot airflow inside the first sintering box 2 can be drawn into the heat dissipation mechanism for heat dissipation, thereby quickly reducing the internal temperature of the first sintering box 2, shortening the cooling time of the silicon nitride ceramic, and improving the heat dissipation efficiency of the silicon nitride ceramic after sintering.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A silicon nitride ceramic microwave sintering element for heat dissipation, comprising a support frame (1) and a first sintering box (2), wherein a box door (3) is provided at the front end of the first sintering box (2), an insulation layer (4) is provided on the inner wall surface of the first sintering box (2), a second sintering box (5) is provided inside the first sintering box (2), a sintering door is provided at the front end of the second sintering box (5), a tray (6) is provided inside the second sintering box (5), a microwave device (7) is provided at the upper end of the first sintering box (2), an output end of the microwave device (7) extends into the second sintering box (5), a protective outer box (9) is provided at one end of the outer side of the first sintering box (2), a conveying pipe (10) is provided at one end of the protective outer box (9), the conveying pipe (10) is connected to the interior of the first sintering box (2), and an exhaust fan (11) is provided outside the conveying pipe (10), characterized in that: The protective outer box (9) is provided with a heat dissipation mechanism inside, and one end of the heat dissipation mechanism is connected to the conveying pipeline (10); the heat dissipation mechanism comprises a heat dissipation box (13), the heat dissipation box (13) is a ceramic hollow shell, the heat dissipation box (13) is fixedly connected to the protective outer box (9), a heat dissipation pipe (14) is provided inside the heat dissipation box (13), the heat dissipation pipe (14) is an S-shaped circuitous pipe, one end of the heat dissipation pipe (14) is fixedly connected to the conveying pipeline (10), a heat conductive gel (15) is provided inside the heat dissipation box (13), the heat conductive gel (15) is wrapped around the outside of the heat dissipation pipe (14), and heat dissipation fin plates (17) are provided at both ends of the outside of the heat dissipation box (13), one end of the heat dissipation fin plate (17) is in contact with the heat conductive gel (15), and the other end of the heat dissipation fin plate (17) extends to the outside of the heat dissipation box (13).

2. The silicon nitride ceramic microwave sintered element for heat dissipation according to claim 1, characterized in that: The outer surface of the heat dissipation box (13) is provided with a heat dissipation groove (18), and the heat dissipation groove (18) is a strip-shaped groove.

3. The silicon nitride ceramic microwave sintered component for easy heat dissipation according to claim 1, characterized in that: A heat-conducting ring (16) is provided on the outside of the heat-dissipating pipe (14), and the heat-conducting ring (16) is fixedly connected to the heat-dissipating pipe (14).

4. The silicon nitride ceramic microwave sintered element for easy heat dissipation according to claim 3, characterized in that: The heat-conducting ring (16) is an annular metal plate, and the outer surface of the heat-conducting ring (16) is in contact with the heat-conducting gel (15).

5. The silicon nitride ceramic microwave sintered element for heat dissipation according to claim 1, characterized in that: A protective shell (8) is provided at the upper end of the microwave device (7), and the protective shell (8) is fixedly connected to the first sintering box (2).

6. The silicon nitride ceramic microwave sintered component for heat dissipation according to claim 1, characterized in that: A heat dissipation groove (12) is provided on the outside of the protective outer box (9), and the heat dissipation groove (12) is communicated with the inside of the protective outer box (9).

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