Corrosion-resistant silicon nitride ceramic heating element

Abstract

The utility model relates to a kind of corrosion-resistant silicon nitride ceramic heating element, comprising: ceramic base and electrode block, ceramic base outside is equipped with anticorrosive layer, the inner chamber of ceramic base is fixedly connected with heating tube, the both ends of heating tube are fixedly connected with first electrically conductive column, the left side of electrode block is equipped with placing groove, the right side of electrode block is fixedly inserted with two connection wires, the left end of connection wire is fixedly connected with second electrically conductive column, the left side of second electrically conductive column is fixedly connected with elastic conductive sheet, the right side of ceramic base is movably connected with two movable plates, the inside of movable plate is equipped with clamping block and push rod, the side of movable plate away from clamping block is fixedly connected with reed, reed is fixedly connected on the right side wall of ceramic base, the front and back sides of electrode block are both equipped with limiting slot.The utility model has the beneficial effects of: it is convenient to replace the ceramic base of different surface area, and the applicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of heating element technology, specifically to a corrosion-resistant silicon nitride ceramic heating element. Background Technology

[0002] Silicon nitride ceramic heating elements are widely used in liquid heating due to their high thermal efficiency, good electrical safety performance, and rapid heating. A silicon nitride ceramic heating element mainly consists of a silicon nitride substrate and a heating wire located inside the silicon nitride substrate.

[0003] In the prior art, the ceramic substrate and electrode body of silicon nitride ceramic heating elements are usually fixedly connected by thermo-pressing. This fixed connection method means that the electrode plate at the end of the heating element can only be connected to and energized with one set of heating elements, resulting in low versatility of the heating elements. When manufacturing different products, the required heating area is different, and it is difficult for the electrode plate at the end of the heating element to be adapted to different products. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application proposes a corrosion-resistant silicon nitride ceramic heating element, which facilitates the replacement of ceramic substrates with different surface areas and improves applicability.

[0005] This utility model provides the following technical solution: a corrosion-resistant silicon nitride ceramic heating element, comprising: a ceramic substrate and an electrode block; an anti-corrosion layer is provided on the outer side of the ceramic substrate; a heating tube is fixedly connected to the inner cavity of the ceramic substrate; a first conductive post is fixedly connected to both ends of the heating tube; a placement groove is provided on the left side of the electrode block; two connecting wires are fixedly inserted into the right side of the electrode block; a second conductive post is fixedly connected to the left end of the connecting wires; an elastic conductive sheet is fixedly connected to the left side of the second conductive post; two movable plates are movably connected to the right side of the ceramic substrate; a locking block and a push rod are provided on the inner side of the movable plate; a spring is fixedly connected to the side of the movable plate away from the locking block; the spring is fixedly connected to the right side wall of the ceramic substrate; and limit grooves are provided on both the front and rear sides of the electrode block.

[0006] As a preferred embodiment of this utility model, the right side of the ceramic substrate is movably inserted into the inner cavity of the placement groove, and the ceramic substrate and the inner wall of the placement groove are in close contact with each other.

[0007] As a preferred embodiment of this utility model, the left side of the elastic conductive sheet is in contact with the adjacent first conductive post, and the left side of the elastic conductive sheet is arranged in an arc-shaped curved surface.

[0008] As a preferred embodiment of this utility model, a first connecting plate is fixedly connected to the left side of the movable plate, and a second connecting plate is provided at the top and bottom of the first connecting plate. A pin is rotatably connected to the inner cavity of the first connecting plate, and the two ends of the pin are fixedly passed through the adjacent second connecting plates. The second connecting plate is fixedly connected to the right side of the ceramic substrate.

[0009] As a preferred embodiment of this utility model, the cross-section of the movable plate is L-shaped, and the inner side of the movable plate is in contact with the locking block.

[0010] As a preferred embodiment of this utility model, the cross-section of the card block is a right-angled triangle. The card block is located on the right side of the push rod, with the hypotenuse of the right-angled triangle structure of the card block facing the push rod, and the right-angled side of the right-angled triangle structure of the card block fitting against the inner side of the movable plate.

[0011] As a preferred embodiment of this utility model, one end of the push rod is fixedly connected to the movable plate, and the other end of the push rod movably passes through the limiting groove.

[0012] The beneficial effects of this utility model are: 1. In this utility model, an external power supply can be connected through two sets of connecting wires. When disassembling the ceramic substrate, press the two push rods. The push rods drive the movable plate to flip away from the locking block. At the same time, the spring is compressed and deformed. The movable plate flips away from the locking block. Then, the ceramic substrate is moved horizontally to move the ceramic substrate away from the placement slot, which makes it convenient to replace ceramic substrates with different surface areas and improves applicability. 2. In this utility model, when assembling the ceramic substrate and the electrode block, the device only needs to insert the ceramic substrate into the inner cavity of the placement groove. The ceramic substrate drives the movable plate to move until it is in contact with the right side wall of the locking block. At this time, the locking block blocks and limits the movable plate, thereby completing the assembly of the ceramic substrate and the electrode block. The assembly operation is simple. 3. In this utility model, during the assembly of the ceramic substrate and the electrode block, the ceramic substrate drives the first conductive post to move. When the first conductive post moves to touch the elastic conductive sheet, the elastic conductive sheet is squeezed and deformed, so that the first conductive post and the elastic conductive sheet are in close contact, thus avoiding poor contact between the first conductive post and the elastic conductive sheet, which would cause the heating element to fail to work. Attached Figure Description

[0013] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a front sectional perspective view of the electrode block of this utility model component; Figure 3 This is a partial cross-sectional perspective view of the ceramic substrate of the component of this utility model. Figure 4 This utility model Figure 2 Enlarged view of point A in the middle; Figure 5 This is a frontal sectional perspective view of the ceramic substrate of the component of this utility model; Figure 6 This is a frontal perspective view of the elastic conductive sheet of the present invention. Figure 7 This is a front perspective view of the movable plate of the component of this utility model; Figure 8 This is a frontal perspective view of the component block of this utility model; In the diagram: 1. Ceramic substrate; 2. Heating element; 3. First conductive post; 4. Anti-corrosion layer; 5. Electrode block; 6. Placement groove; 7. Connecting wire; 8. Second conductive post; 9. Elastic conductive sheet; 10. Movable plate; 11. First connecting plate; 12. Second connecting plate; 13. Pin; 14. Spring; 15. Locking block; 16. Push rod; 17. Limiting groove. Detailed Implementation

[0014] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] Example 1 like Figures 1 to 8 As shown, a corrosion-resistant silicon nitride ceramic heating element includes: a ceramic substrate 1 and an electrode block 5. The ceramic substrate 1 has an anti-corrosion layer 4 on its outer side to improve its corrosion resistance. A heating tube 2 is fixedly connected to the inner cavity of the ceramic substrate 1. Both ends of the heating tube 2 are fixedly connected to a first conductive post 3. A placement groove 6 is opened on the left side of the electrode block 5. The right side of the ceramic substrate 1 is movably inserted into the inner cavity of the placement groove 6. The ceramic substrate 1 and the inner wall of the placement groove 6 are in close contact with each other. Two connecting wires 7 are fixedly inserted into the right side of the electrode block 5. The left end of the connecting wires 7 is fixedly connected to a second conductive post 8. Two movable plates 10 are movably connected to the right side of the ceramic substrate 1. A first connecting plate 11 is fixedly connected to the left side of the movable plate 10. A second connecting plate 12 is provided at the top and bottom of the first connecting plate 11. A pin 13 is rotatably connected to the inner cavity of the first connecting plate 11. Both ends of the pin 13 are fixedly inserted through the adjacent second connecting plate 12. The second connecting plate 12 is fixedly connected to the right side of the ceramic substrate 1.

[0016] In this embodiment, the inner side of the movable plate 10 is provided with a locking block 15 and a push rod 16. The cross-section of the movable plate 10 is L-shaped, and the inner side of the movable plate 10 is in contact with the locking block 15. The cross-section of the locking block 15 is a right triangle. The locking block 15 is located to the right of the push rod 16. The hypotenuse of the right triangle structure of the locking block 15 faces the push rod 16, and the right-angled side of the right triangle structure of the locking block 15 is in contact with the inner side of the movable plate 10. A spring 14 is fixedly connected to the side of the movable plate 10 away from the locking block 15. The spring 14 is fixedly connected to the right side wall of the ceramic substrate 1. Limiting grooves 17 are opened on both the front and rear sides of the electrode block 5. One end of the push rod 16 is fixedly connected to the movable plate 10, and the other end of the push rod 16 moves through the limiting groove 17.

[0017] When assembling the ceramic substrate 1 and the electrode block 5, the ceramic substrate 1 is inserted into the inner cavity of the placement groove 6, and the push rod 16 moves in the inner cavity of the limiting groove 17. The ceramic substrate 1 drives the movable plate 10 to contact the locking block 15. As the ceramic substrate 1 moves, the movable plate 10 moves on the inclined surface of the locking block 15. The movable plate 10 flips away from the locking block 15. The movable plate 10 flips around the pin 13 as the center. At the same time, the spring 14 deforms. When the ceramic substrate 1 drives the movable plate 10 to move away from the locking block 15, the movable plate 10 flips in the opposite direction under the elastic action of the spring 14. The movable plate 10 flips until it is in contact with the right side wall of the locking block 15. At this time, the locking block 15 blocks and limits the movable plate 10, thus completing the assembly of the ceramic substrate 1 and the electrode block 5.

[0018] An external power supply can be connected via two sets of connecting wires 7. When disassembling the ceramic substrate 1, press the two push rods 16. The push rods 16 drive the movable plate 10 to flip away from the locking block 15. At the same time, the spring 14 is compressed and deformed. The movable plate 10 flips away from the locking block 15. Then, the ceramic substrate 1 is moved horizontally to move away from the placement slot 6, which facilitates the replacement of ceramic substrates 1 with different surface areas and improves applicability.

[0019] Example 2 like Figure 4 , Figure 5 and Figure 6 As shown, an elastic conductive sheet 9 is fixedly connected to the left side of the second conductive post 8. The left side of the elastic conductive sheet 9 is in contact with the adjacent first conductive post 3. The left side of the elastic conductive sheet 9 is set in an arc-shaped curved surface.

[0020] The ceramic substrate 1 drives the first conductive post 3 to move. When the first conductive post 3 moves to touch the elastic conductive sheet 9, the elastic conductive sheet 9 is squeezed and deformed, so that the first conductive post 3 and the elastic conductive sheet 9 are in close contact, thus avoiding poor contact between the first conductive post 3 and the elastic conductive sheet 9, which would cause the heating element to fail to work.

[0021] Implementation plan: When assembling the ceramic substrate 1 and the electrode block 5, the ceramic substrate 1 is inserted into the inner cavity of the placement groove 6, and the push rod 16 moves in the inner cavity of the limiting groove 17. The ceramic substrate 1 drives the movable plate 10 to contact the locking block 15. As the ceramic substrate 1 moves, the movable plate 10 moves on the inclined surface of the locking block 15. The movable plate 10 flips away from the locking block 15. The movable plate 10 flips around the pin 13 as the center. At the same time, the spring 14 deforms. When the ceramic substrate 1 drives the movable plate 10 to move away from the locking block 15, the movable plate 10 flips in the opposite direction under the elastic action of the spring 14. The movable plate 10 flips until it is in contact with the right side wall of the locking block 15. At this time, the locking block 15 blocks and limits the movable plate 10, thereby completing the assembly of the ceramic substrate 1 and the electrode block 5.

[0022] During the assembly of the ceramic substrate 1 and the electrode block 5, the ceramic substrate 1 drives the first conductive post 3 to move. The first conductive post 3 moves until it touches the elastic conductive sheet 9. The elastic conductive sheet 9 is squeezed and deformed, so that the first conductive post 3 and the elastic conductive sheet 9 are in close contact, thus avoiding poor contact between the first conductive post 3 and the elastic conductive sheet 9, which would cause the heating element to fail to work.

[0023] An external power supply can be connected via two sets of connecting wires 7. When disassembling the ceramic substrate 1, press the two push rods 16. The push rods 16 drive the movable plate 10 to flip away from the locking block 15. At the same time, the spring 14 is compressed and deformed. The movable plate 10 flips away from the locking block 15. Then, the ceramic substrate 1 is moved horizontally to move away from the placement slot 6, which facilitates the replacement of ceramic substrates 1 with different surface areas and improves applicability.

[0024] When assembling the ceramic substrate 1 and the electrode block 5, the device simply requires inserting the ceramic substrate 1 into the inner cavity of the placement groove 6. The ceramic substrate 1 moves the movable plate 10 until it is in contact with the right side wall of the locking block 15. At this time, the locking block 15 blocks and limits the movable plate 10, thus completing the assembly of the ceramic substrate 1 and the electrode block 5. The assembly operation is simple.

[0025] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A corrosion-resistant silicon nitride ceramic heating element, characterized in that, include: The ceramic substrate and electrode block are provided. The outer side of the ceramic substrate is provided with an anti-corrosion layer. A heating tube is fixedly connected to the inner cavity of the ceramic substrate. Both ends of the heating tube are fixedly connected to a first conductive post. A placement groove is opened on the left side of the electrode block. Two connecting wires are fixedly inserted into the right side of the electrode block. A second conductive post is fixedly connected to the left end of the connecting wires. An elastic conductive sheet is fixedly connected to the left side of the second conductive post. Two movable plates are movably connected to the right side of the ceramic substrate. A locking block and a push rod are provided on the inner side of the movable plate. A spring is fixedly connected to the side of the movable plate away from the locking block. The spring is fixedly connected to the right side wall of the ceramic substrate. Limiting grooves are opened on both the front and rear sides of the electrode block.

2. The corrosion-resistant silicon nitride ceramic heating element according to claim 1, characterized in that, The ceramic substrate is movably inserted into the inner cavity of the placement groove on the right side, and the ceramic substrate fits against the inner wall of the placement groove.

3. The corrosion-resistant silicon nitride ceramic heating element according to claim 1, characterized in that, The left side of the elastic conductive sheet is in contact with the adjacent first conductive post, and the left side of the elastic conductive sheet is set in an arc-shaped curved surface.

4. The corrosion-resistant silicon nitride ceramic heating element according to claim 1, characterized in that, A first connecting plate is fixedly connected to the left side of the movable plate. A second connecting plate is provided at the top and bottom of the first connecting plate. A pin is rotatably connected to the inner cavity of the first connecting plate. The two ends of the pin are fixedly passed through the adjacent second connecting plates. The second connecting plate is fixedly connected to the right side of the ceramic substrate.

5. The corrosion-resistant silicon nitride ceramic heating element according to claim 1, characterized in that, The movable plate has an L-shaped cross-section, and the inner side of the movable plate fits into the locking block.

6. The corrosion-resistant silicon nitride ceramic heating element according to claim 1, characterized in that, The cross-section of the locking block is a right-angled triangle. The locking block is located on the right side of the push rod, with the hypotenuse of the right-angled triangle structure facing the push rod, and the right-angled side of the right-angled triangle structure fitting against the inner side of the movable plate.

7. The corrosion-resistant silicon nitride ceramic heating element according to claim 1, characterized in that, One end of the push rod is fixedly connected to the movable plate, and the other end of the push rod moves through the limiting groove.

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