A liquid heating type silicon nitride ceramic electric heating element with rapid heating

Abstract

The utility model relates to a kind of liquid heating type silicon nitride ceramic electric heating element of quick heating, it includes: two silicon nitride ceramic matrix and electrode block, heating tube is equipped between two silicon nitride ceramic matrix, the left side of electrode block is provided with first limit slot, the inner chamber of first limit slot is provided with second limit slot in both sides, the inner chamber top and bottom of first limit slot are respectively movably inserted with tab, the right side of electrode block is provided with two perforations, the inner chamber of perforation is movably penetrated and provided with electric post, the inner chamber top and bottom of first limit slot are provided with connecting rod. The utility model has the beneficial effects that: clamp plate is moved to far from the fixing of electric post, limit rod is moved to far from the fixing of silicon nitride ceramic matrix, so that disassembly operation is more simple, so that exchange electric post and heating tube can be simultaneously repaired or replaced.

Description

Technical Field

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

[0002] Electric heating elements are a type of component that converts electrical energy into heat energy. Various electric heating devices use electric heating elements to generate heat. There are many types of electric heating elements, including conventional types such as electric heating plates, electric heating tapes, electric heating cables, electric heating discs, electric thermocouples, electric heating coils, electric heating rods, electric heating cores, silicon nitride ceramic electric heating elements, tungsten-molybdenum products, and silicon carbide rods. Among them, silicon nitride ceramic electric heating elements mainly consist of a silicon nitride ceramic substrate and a heating tube embedded inside the silicon nitride ceramic substrate.

[0003] In the prior art, since the silicon nitride ceramic substrate and the electrode block are usually fixed by thermo-pressing, it is difficult to separate the silicon nitride ceramic substrate and the electrode block. If the heating element in the silicon nitride ceramic substrate is damaged, the heating element needs to be replaced as a whole, which increases the later use and maintenance cost of the heating element. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application proposes a rapid-heating liquid-heating silicon nitride ceramic electric heating element. The clamp is moved away from the terminal to release the terminal's fixation, and the limiting rod is moved away from the socket to release the silicon nitride ceramic substrate's fixation, making disassembly operations simpler. This allows for simultaneous repair or replacement of the terminal and heating element.

[0005] This utility model provides the following technical solution: a rapid heating liquid-heating silicon nitride ceramic electric heating element, comprising: two silicon nitride ceramic substrates and an electrode block, a heating tube disposed between the two silicon nitride ceramic substrates, a first limiting groove opened on the left side of the electrode block, second limiting grooves opened on both the front and rear sides of the inner cavity of the first limiting groove, a protruding plate movably inserted into the top and bottom of the inner cavity of the first limiting groove, two through holes opened on the right side of the electrode block, a connecting post movably passing through the inner cavity of the through holes, a connecting rod provided at the top and bottom of the inner cavity of the first limiting groove, a screw hole opened on the connecting rod, a screw inserted into the inner cavity of the screw hole, clamps fixedly connected to both ends of the connecting rod, two limiting rods fixedly connected to the left end of the connecting rod, two grooves opened on the side of the protruding plate away from the silicon nitride ceramic substrate, and insertion holes opened on the inner wall of the groove.

[0006] As a preferred embodiment of this utility model, the two silicon nitride ceramic substrates are movably inserted into the inner cavity of the adjacent second limiting groove on their front and rear sides, respectively, and the silicon nitride ceramic substrates are in contact with the inner wall of the second limiting groove.

[0007] As a preferred embodiment of this utility model, the protruding plate is fixedly connected to the adjacent silicon nitride ceramic substrate, and the protruding plate is located near the right side wall of the silicon nitride ceramic substrate.

[0008] As a preferred embodiment of this utility model, the left end of the electrode post is movably inserted into the inner cavity of the heating tube, and the right end of the electrode post is fixedly connected to a conductive base, and the right end of the conductive base is fixedly connected to a conductive connector.

[0009] As a preferred embodiment of this utility model, the top and bottom of the electrode block are provided with circular grooves, the nut part of the screw is movably inserted into the inner cavity of the circular groove, the screw is rotatably connected to the inner cavity of the circular groove, and the screw is threadedly connected to the screw hole.

[0010] As a preferred embodiment of this utility model, the cross-section of the limiting rod is L-shaped, and the bottom end of the limiting rod is movably inserted into the inner cavity of the insertion hole.

[0011] As a preferred embodiment of this utility model, the four clamps are respectively attached to the top and bottom of the power receiving post, and the top and bottom of the two connecting rods are respectively fixedly connected to two limiting posts. The top and bottom of the electrode block are respectively provided with two limiting holes, and the limiting posts can move through the adjacent limiting holes.

[0012] The beneficial effects of this utility model are: 1. In this utility model, when it is necessary to replace the electrical terminal or heating element, it is only necessary to tighten the screw with an external wrench, so that the connecting rod drives the clamp and the limiting rod to move. The clamp moves away from the electrical terminal to release the fixing of the electrical terminal, and the limiting rod moves away from the socket to release the fixing of the silicon nitride ceramic substrate, making the disassembly operation simpler, so that the electrical terminal and heating element can be repaired or replaced at the same time. 2. In this utility model, by setting the limiting post, the connecting rod moves within a limited trajectory, avoiding deviation when the connecting rod moves, thereby preventing the silicon nitride ceramic substrate and the power connection post from shaking after they are fixed, thus improving stability. Attached Figure Description

[0013] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a left-side perspective view of the present invention; Figure 3 This is a left perspective view of the electrode block of this utility model component; Figure 4 This is a front sectional perspective view of the electrode block of this utility model component; Figure 5 This is a frontal perspective view of the silicon nitride ceramic substrate of the component of this utility model; Figure 6 This utility model Figure 5 Enlarged view of point A in the middle; Figure 7 This is a frontal cross-sectional perspective view of the silicon nitride ceramic substrate of the component of this utility model; Figure 8 This is a front perspective view of the connecting rod of this utility model. Figure 9 This is a front perspective view of the limiting rod of this utility model component; In the diagram: 1. Silicon nitride ceramic substrate; 2. Heating element; 3. Convex plate; 4. Groove; 5. Insertion hole; 6. Electrode block; 7. First limiting groove; 8. Second limiting groove; 9. Through hole; 10. Electrical connection post; 11. Conductive base; 12. Conductive connector; 13. Connecting rod; 14. Screw hole; 15. Screw; 16. Circular groove; 17. Clamping plate; 18. Limiting rod; 19. Limiting post; 20. Limiting hole. 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 rapid-heating liquid-heating silicon nitride ceramic electric heating element includes: two silicon nitride ceramic substrates 1 and an electrode block 6. A heating tube 2 is disposed between the two silicon nitride ceramic substrates 1. A first limiting groove 7 is formed on the left side of the electrode block 6. Second limiting grooves 8 are formed on both the front and rear sides of the inner cavity of the first limiting groove 7. The front and rear sides of the two silicon nitride ceramic substrates 1 are respectively movably inserted into the inner cavities of the adjacent second limiting grooves 8. The inner walls of the silicon nitride ceramic substrates 1 and the second limiting grooves 8 are in contact with each other. The first limiting groove 7 has protruding plates 3 movably inserted into its inner cavity at the top and bottom. The protruding plates 3 are fixedly connected to the adjacent silicon nitride ceramic substrate 1. Near the right side wall of the silicon nitride ceramic substrate 1, the protruding plates 3 have two through holes 9 on the right side of the electrode block 6. The inner cavity of the through holes 9 is movably connected to a connecting post 10. The left end of the connecting post 10 is movably inserted into the inner cavity of the heating tube 2. The right end of the connecting post 10 is fixedly connected to a conductive seat 11. The right end of the conductive seat 11 is fixedly connected to a conductive connector 12.

[0016] In this embodiment, the top and bottom of the inner cavity of the first limiting groove 7 are provided with connecting rods 13, and the connecting rods 13 are provided with screw holes 14. Screws 15 are inserted into the inner cavity of the screw holes 14. The top and bottom of the electrode block 6 are provided with circular grooves 16. The nut part of the screw 15 is movably inserted into the inner cavity of the circular groove 16. The screw 15 is rotatably connected to the inner cavity of the circular groove 16. The screw 15 is threadedly connected to the screw hole 14. Two limiting rods 18 are fixedly connected to the left end of the connecting rod 13. Two grooves 4 are provided on the side of the protrusion plate 3 away from the silicon nitride ceramic substrate 1. Insertion holes 5 are provided on the inner wall of the grooves 4. The cross-section of the limiting rod 18 is L-shaped. The bottom end of the limiting rod 18 is movably inserted into the inner cavity of the insertion hole 5.

[0017] The silicon nitride ceramic substrate 1 is moved, which drives the protruding plate 3 to move. The silicon nitride ceramic substrate 1 moves to the inner cavity of the second limiting groove 8. The two protruding plates 3 move to fit together with the top and bottom of the inner cavity of the first limiting groove 7, respectively. At the same time, the protruding plate 3 moves to the inside of the groove 4 and fits together with the limiting rod 18. Then, the connecting post 10 is moved, passing through the through hole 9 and inserted into the inner cavity of the heating tube 2. Then, the two screws 15 are turned by external tools. The screws 15 rotate in the inner cavity of the screw hole 14. The connecting rod 13 moves relative to the screws 15 under the action of the thread. The connecting rod 13 drives the limiting rod 18 to move. The limiting rod 18 moves in the inner cavity of the groove 4, thereby fixing the silicon nitride ceramic substrate 1.

[0018] Example 2 like Figure 8 and Figure 9 As shown, clamping plates 17 are fixedly connected to both ends of the connecting rod 13. The four clamping plates 17 are respectively attached to the top and bottom of the electrical connection post 10. Two limiting posts 19 are fixedly connected to the top and bottom of the two connecting rods 13 respectively. Two limiting holes 20 are opened at the top and bottom of the electrode block 6 respectively. The limiting posts 19 can move through the adjacent limiting holes 20. The connecting rod 13 drives the clamping plate 17 to move. The clamping plate 17 moves downward to clamp and fix the power connection post 10. The setting of the limiting post 19 allows the connecting rod 13 to move within a limited trajectory, avoiding deviation when the connecting rod 13 moves, thereby preventing the silicon nitride ceramic substrate 1 and the power connection post 10 from shaking after being fixed, thus improving stability.

[0019] Implementation plan: The heating element 2 is placed between two silicon nitride ceramic substrates 1, and then hot-pressed to connect them. Next, the silicon nitride ceramic substrates 1 are moved, causing the protruding plates 3 to move. The silicon nitride ceramic substrates 1 move into the inner cavity of the second limiting groove 8, and the two protruding plates 3 move to their respective positions to be in contact with the top and bottom of the inner cavity of the first limiting groove 7. Simultaneously, the protruding plates 3 move into the groove 4 to be in contact with the limiting rod 18. Then, the connecting post 10 is moved... The electrode 10 passes through the through hole 9 and is inserted into the inner cavity of the heating tube 2. Then, two screws 15 are turned by external tools. The screws 15 rotate in the inner cavity of the screw hole 14. The connecting rod 13 moves relative to the screw 15 under the action of the thread. The connecting rod 13 drives the limiting rod 18 and the clamping plate 17 to move. The limiting rod 18 moves in the inner cavity of the groove 4. The limiting rod 18 moves to the inner cavity of the insertion hole 5, thereby fixing the silicon nitride ceramic substrate 1. The clamping plate 17 moves downward to clamp and fix the electrode 10.

[0020] When it is necessary to replace the terminal 10 or the heating element 2, simply use an external wrench to turn the screw 15, which will cause the connecting rod 13 to move the clamp 17 and the limiting rod 18. The clamp 17 moves away from the terminal 10 to release the fixing of the terminal 10, and the limiting rod 18 moves away from the socket 5 to release the fixing of the silicon nitride ceramic substrate 1, making the disassembly operation simpler. Thus, the terminal 10 and the heating element 2 can be repaired or replaced at the same time.

[0021] By setting the limiting post 19, the connecting rod 13 moves within a limited trajectory, avoiding deviation when the connecting rod 13 moves, thereby preventing the silicon nitride ceramic substrate 1 and the power connection post 10 from shaking after they are fixed, thus improving stability.

[0022] 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.

[0023] 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 rapid-heating liquid-heated silicon nitride ceramic electric heating element, characterized in that, include: The device comprises two silicon nitride ceramic substrates and an electrode block, with a heating element positioned between the two substrates. A first limiting groove is formed on the left side of the electrode block, and second limiting grooves are formed on both the front and rear sides of the inner cavity of the first limiting groove. A protruding plate is movably inserted into the top and bottom of the inner cavity of the first limiting groove. Two through holes are formed on the right side of the electrode block, and a power connection post is movably inserted through the inner cavity of the through holes. A connecting rod is formed on the top and bottom of the inner cavity of the first limiting groove, and a screw hole is formed on the connecting rod. A screw is inserted into the inner cavity of the screw hole. Clamping plates are fixedly connected to both ends of the connecting rod. Two limiting rods are fixedly connected to the left end of the connecting rod. Two grooves are formed on the side of the protruding plate away from the silicon nitride ceramic substrate, and insertion holes are formed on the inner wall of the grooves.

2. The rapid heating liquid-heated silicon nitride ceramic electric heating element according to claim 1, characterized in that, Two silicon nitride ceramic substrates are movably inserted into the inner cavity of adjacent second limiting grooves on their front and rear sides, respectively, with the silicon nitride ceramic substrates and the inner wall of the second limiting grooves fitting together.

3. The rapid heating type liquid-heated silicon nitride ceramic electric heating element according to claim 1, characterized in that, The protruding plate is fixedly connected to the adjacent silicon nitride ceramic substrate, and the protruding plate is located near the right side wall of the silicon nitride ceramic substrate.

4. The rapid heating liquid-heated silicon nitride ceramic electric heating element according to claim 1, characterized in that, The left end of the connector is movably inserted into the inner cavity of the heating element, and the right end of the connector is fixedly connected to a conductive base, and the right end of the conductive base is fixedly connected to a conductive connector.

5. The rapid heating type liquid-heated silicon nitride ceramic electric heating element according to claim 1, characterized in that, The top and bottom of the electrode block are provided with circular grooves. The nut part of the screw is movably inserted into the inner cavity of the circular groove, the screw is rotatably connected to the inner cavity of the circular groove, and the screw is threadedly connected to the screw hole.

6. The rapid heating liquid-heated silicon nitride ceramic electric heating element according to claim 1, characterized in that, The limiting rod has an L-shaped cross-section, and its bottom end is movably inserted into the inner cavity of the insertion hole.

7. The rapid heating type liquid-heated silicon nitride ceramic electric heating element according to claim 1, characterized in that, The four clamps are respectively attached to the top and bottom of the power receiving post. The top and bottom of the two connecting rods are respectively fixedly connected to two limiting posts. The top and bottom of the electrode block are respectively opened with two limiting holes. The limiting posts can move through the adjacent limiting holes.

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