Silicon nitride ceramic heater

Abstract

The utility model discloses a silicon nitride ceramic heater, which comprises a mounting plate and a barrel body rotationally arranged on the upper surface of the mounting plate, a barrel cover is rotationally arranged on the upper surface of the barrel body, and a silicon oxide ceramic heating barrel is arranged on the lower surface of the barrel cover through a barrel cover; the side face of the barrel body is provided with a rotating assembly used for driving the barrel body to rotate so that a heated object and the silicon oxide ceramic heating cylinder can rotate relatively. The rotating assembly comprises teeth, a gear, a driving module and a limiting module; the gear is rotationally arranged on the upper surface of the mounting plate, the gear is driven by the servo motor to rotate, and the gear is meshed with the barrel body on the outer arc surface of the barrel body, so that the barrel body is driven to rotate on the upper surface of the mounting plate, a heated object in the barrel body rotates relative to the silicon oxide ceramic heating cylinder, and then the heated object is uniformly heated; and meanwhile, limiting columns and limiting balls are arranged and clamped into the mounting plate to rotate, so that the stability of the barrel body in the rotating process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, specifically a silicon nitride ceramic heater. Background Technology

[0002] Silicon nitride ceramic is an inorganic ceramic material that does not shrink during sintering. Silicon nitride has very high strength, especially hot-pressed silicon nitride, which is one of the hardest substances in the world. It possesses properties such as high strength, low density, and high temperature resistance. Electric heaters are electrical appliances that use electrical energy to achieve a heating effect. They are small in size, have high heating power, and are widely used. They employ intelligent control modes, have high temperature control accuracy, and can be networked with computers. They have a wide range of applications, long lifespan, and high reliability. The core principle of heaters is energy conversion, most commonly the conversion of electrical energy into heat energy. Due to the high temperature resistance and high density of silicon nitride ceramics, they can be used as the heat transfer medium in heaters.

[0003] Existing silicon nitride ceramic heaters typically place the items to be heated inside the container and heat them through a central silicon nitride ceramic heater. Since the items being heated are in a fixed state relative to the silicon nitride ceramic heater, it is impossible to ensure that the items are heated evenly, which may affect the heating effect of the silicon nitride ceramic heater. Therefore, we need to propose a silicon nitride ceramic heater. Utility Model Content

[0004] The purpose of this utility model is to provide a silicon nitride ceramic heater, which uses a servo motor to drive a gear to rotate. The gear meshes with the outer arc surface of the barrel, thereby causing the barrel to rotate on the upper surface of the mounting plate. This causes the heated item inside the barrel to rotate relative to the silicon oxide ceramic heating cylinder. At the same time, a limiting post and a limiting ball are provided and are engaged inside the mounting plate to rotate, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a silicon nitride ceramic heater, comprising a mounting plate and a barrel rotatably disposed on the upper surface of the mounting plate, wherein a barrel cover is rotatably disposed on the upper surface of the barrel body, and a silicon oxide ceramic heating cylinder is disposed on the lower surface of the barrel cover through the cover.

[0006] The side of the barrel is provided with a rotating component for driving the barrel to rotate, thereby causing the heated item to rotate relative to the silicon oxide ceramic heating cylinder.

[0007] The rotating assembly includes teeth, gears, a drive module, and a limiting module. The gears are rotatably mounted on the upper surface of the mounting plate. Several sets of teeth are provided, and several sets of teeth are fixedly mounted on the outer arc surface of the barrel. The several sets of teeth are meshed with the gears.

[0008] Preferably, the limiting module includes limiting posts and limiting balls, and several sets of limiting posts and limiting balls are provided. Several sets of limiting posts are fixedly installed on the lower surface of the barrel, and several sets of limiting balls are fixedly installed at the bottom end of the corresponding limiting posts. The upper surface of the mounting plate is provided with a rotating groove corresponding to several sets of limiting posts, and the inside of the mounting plate and below the rotating groove is provided with a limiting groove corresponding to several sets of limiting balls.

[0009] Preferably, the drive module includes a support plate and a servo motor. The support plate is fixedly mounted on the upper surface of the mounting plate by a support column. The gear is rotatably mounted between the mounting plate and the support plate. The servo motor is bolted to the upper surface of the support plate, and the gear is keyed to the output end of the servo motor through a rotating shaft.

[0010] Preferably, an air outlet pipe and a blower pipe are provided through the upper surface of the cylinder cover, and a ventilation fan is provided inside the blower pipe, and a power supply module is provided on the upper surface of the cylinder cover.

[0011] Preferably, the cylinder cover is bolted to the lower surface of the barrel cover, and the silicon oxide ceramic heating cylinder is bolted to the lower surface of the cylinder cover.

[0012] Preferably, the silicon oxide ceramic heating cylinder is provided with a heating wire inside, and the silicon oxide ceramic heating cylinder does not contact the bottom of the cylinder body.

[0013] Preferably, a limiting ring is provided on the lower surface of the bucket lid, and a connecting groove corresponding to the limiting ring is provided on the upper surface of the bucket body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses a servo motor to drive a gear to rotate. The gear meshes with the outer arc surface of the barrel, thereby causing the barrel to rotate on the upper surface of the mounting plate. This causes the heated item inside the barrel to rotate relative to the silicon oxide ceramic heating cylinder, resulting in uniform heating of the heated item. At the same time, a limiting post and a limiting ball are set and locked inside the mounting plate to ensure the stability of the barrel during rotation.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an exploded view of the overall structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 This utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1. Mounting plate; 2. Barrel body; 3. Barrel lid; 4. Air outlet pipe; 5. Air blower pipe; 6. Gear; 7. Support plate; 8. Gear; 9. Servo motor; 10. Limiting post; 11. Silica ceramic heating cylinder; 12. Heating wire; 13. Limiting ring; 14. Limiting ball; 15. Barrel lid; 16. Rotating groove; 17. Limiting groove; 18. Ventilation fan; 19. Connecting groove; 20. Power supply module. Detailed Implementation

[0022] 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.

[0023] This utility model provides: a silicon nitride ceramic heater, such as... Figure 1-4 As shown, the device includes a mounting plate 1 and a barrel 2 rotatably mounted on the upper surface of the mounting plate 1. A barrel lid 3 is rotatably mounted on the upper surface of the barrel 2, and a silicon oxide ceramic heating cylinder 11 is mounted on the lower surface of the barrel lid 3 via a barrel cover 15. A limit ring 13 is provided on the lower surface of the barrel lid 3, and a connecting groove 19 corresponding to the limit ring 13 is provided on the upper surface of the barrel 2. The limit ring 13 is inserted into the connecting groove 19, thereby improving the stability of the connection between the barrel 2 and the barrel lid 3 and preventing the barrel lid 3 from detaching from the barrel 2 when the barrel 2 rotates. Furthermore, by providing a connecting rod on the upper surface of the barrel lid 3, the barrel lid 3 is connected to an external structure, thereby ensuring that the barrel lid 3 will not rotate with the barrel 2 when the barrel 2 rotates, and thus ensuring that the silicon oxide ceramic heating cylinder 11 on the lower surface of the barrel lid 3 will not rotate with the barrel 2.

[0024] Preferably, the side of the barrel 2 is provided with a rotating assembly for driving the barrel 2 to rotate, thereby causing the heated item to rotate relative to the silica ceramic heating cylinder 11. The rotating assembly includes teeth 6, gears 8, a drive module, and a limiting module. The gears 8 are rotatably disposed on the upper surface of the mounting plate 1. Several sets of teeth 6 are provided, and several sets of teeth 6 are fixedly disposed on the outer arc surface of the barrel 2. The several sets of teeth 6 are meshed with the gears 8. The drive module drives the gears 8 to rotate. The gears 8, by meshing with the teeth 6 on the outer arc surface of the barrel 2, drive the barrel 2 to rotate on the upper surface of the mounting plate 1. A fixing module for fixing the heated item is provided inside the barrel 2, thereby ensuring that the heated item can rotate with the barrel 2, thereby causing the heated item to rotate relative to the silica ceramic heating cylinder 11, so that the heated item is heated evenly.

[0025] Furthermore, the limiting module includes limiting posts 10 and limiting balls 14. Several sets of limiting posts 10 and limiting balls 14 are provided. Several sets of limiting posts 10 are fixedly set on the lower surface of the barrel 2, and several sets of limiting balls 14 are fixedly set at the bottom end of the corresponding limiting posts 10. The upper surface of the mounting plate 1 is provided with a rotating groove 16 corresponding to several sets of limiting posts 10. Inside the mounting plate 1 and below the rotating groove 16, a limiting groove 17 corresponding to several sets of limiting balls 14 is provided. The limiting posts 10 and limiting balls 14 on the lower surface of the barrel 2 are inserted into the rotating groove 16 and the limiting groove 17. The diameter of the limiting ball 14 is larger than the diameter of the limiting post 10, thereby limiting the limiting post 10 through the limiting ball 14, thus ensuring that the barrel 2 will not detach from the mounting plate 1 while rotating, thereby improving the stability of the barrel 2 during rotation.

[0026] Furthermore, the drive module includes a support plate 7 and a servo motor 9. The support plate 7 is fixedly mounted on the upper surface of the mounting plate 1 by a support column. The gear 8 is rotatably mounted between the mounting plate 1 and the support plate 7. The servo motor 9 is bolted to the upper surface of the support plate 7, and the gear 8 is connected to the output end of the servo motor 9 by a rotating shaft. The support plate 7 supports the servo motor 9, and the gear 8 rotates below the support plate 7 without being disconnected from the support column. Thus, the servo motor 9 drives the gear 8 to rotate while ensuring the stability of the gear 8 during rotation, thereby ensuring that the barrel 2 can be driven to rotate.

[0027] It is worth noting that an air outlet pipe 4 and a blower pipe 5 are provided through the upper surface of the cylinder cover 15, and a ventilation fan 18 is provided inside the blower pipe 5. A power supply module 20 is provided on the upper surface of the cylinder cover 15. The ventilation fan 18 blows air into the inside of the barrel 2 and then blows it out through the air outlet pipe 4, thereby improving the ventilation inside the barrel 2. The power supply module 20 supplies power to the heating wire 12 and the ventilation fan 18. The cylinder cover 3 does not rotate with the barrel 2, thereby ensuring the stability of the power supply from the power supply module 20.

[0028] Specifically, the cylinder cover 15 is bolted to the lower surface of the barrel cover 3, and the silicon oxide ceramic heating cylinder 11 is bolted to the lower surface of the cylinder cover 15. The cylinder cover 15 is fixed relative to the barrel cover 3 by being bolted to it, and the silicon oxide ceramic heating cylinder 11 is then bolted to the cylinder cover 15, thereby ensuring that the silicon oxide ceramic heating cylinder 11 will not rotate through the barrel cover 3. The silicon oxide ceramic heating cylinder 11 is provided with a heating wire 12 inside, and the silicon oxide ceramic heating cylinder 11 does not contact the bottom of the barrel body 2. The silicon oxide ceramic heating cylinder 11 is heated by the heating wire 12, and the silicon oxide ceramic heating cylinder 11 does not contact the barrel body 2, further preventing the silicon oxide ceramic heating cylinder 11 from rotating with the barrel body 2.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silicon nitride ceramic heater characterized by, It include: installation plate (1) and rotation setting on the upper surface of installation plate (1) barrel (2), the upper surface of barrel (2) rotation setting has bucket cover (3), the lower surface of bucket cover (3) is provided with silica ceramic heating cylinder (11) through cylinder cover (15); The side of barrel (2) is provided with a rotating assembly for driving the barrel (2) to rotate so that the heated object rotates relative to the silica ceramic heating cylinder (11). The rotating assembly includes a gear (6), a gear (8), a drive module and a limiting module, the gear (8) is rotatably arranged on the upper surface of the mounting plate (1), the gear (6) is provided with a plurality of groups, the gear (6) is fixedly arranged on the outer arc surface of the barrel (2), and the gear (6) is rotatably arranged on the upper surface of the mounting plate (1).

2. The silicon nitride ceramic heater according to claim 1, characterized by: The limiting module includes a limiting column (10) and a limiting ball (14), the limiting column (10) and the limiting ball (14) are provided with a plurality of groups, the limiting column (10) is fixedly arranged on the lower surface of the barrel (2), the limiting ball (14) is fixedly arranged on the bottom end of the corresponding limiting column (10), the upper surface of the mounting plate (1) is provided with a rotating groove (16) corresponding to the plurality of limiting columns (10), and the inside of the mounting plate (1) and below the rotating groove (16) are provided with a limiting groove (17) corresponding to the plurality of limiting balls (14).

3. The silicon nitride ceramic heater according to claim 2, wherein: The drive module includes a support disc (7) and a servo motor (9), the support disc (7) is fixedly arranged on the upper surface of the mounting plate (1) through a support column, the gear (8) is rotatably arranged between the mounting plate (1) and the support disc (7), the servo motor (9) is bolted to the upper surface of the support disc (7), and the gear (8) is connected to the output end of the servo motor (9) through a rotating shaft.

4. The silicon nitride ceramic heater according to claim 3, wherein: The upper surface of the cylinder cover (15) is provided with an air outlet pipe (4) and a blowing pipe (5), and the inside of the blowing pipe (5) is provided with a ventilation fan (18), and the upper surface of the cylinder cover (15) is provided with a power supply module (20).

5. The silicon nitride ceramic heater of claim 1, wherein: The cylinder cover (15) is bolted to the lower surface of the bucket cover (3), and the silica ceramic heating cylinder (11) is bolted to the lower surface of the cylinder cover (15).

6. The silicon nitride ceramic heater of claim 1, wherein: The inside of the silica ceramic heating cylinder (11) is provided with a heating wire (12), and the silica ceramic heating cylinder (11) is not in contact with the inner bottom of the barrel (2).

7. The silicon nitride ceramic heater of claim 1, wherein: The lower surface of the bucket cover (3) is provided with a limiting ring (13), and the upper surface of the barrel (2) is provided with a connecting groove (19) corresponding to the limiting ring (13). The lower surface of the bucket cover (3) is provided with a limiting ring (13), and the upper surface of the barrel (2) is provided with a connecting groove (19) corresponding to the limiting ring (13).

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