Conductive ceramic heating assembly

Abstract

The utility model particularly relates to a conductive ceramic heating assembly which comprises a conductive ceramic heating body which is of a cup-shaped structure or a hollow-out circular-tube-shaped structure. At least two electrodes are arranged on the outer surface of the conductive ceramic heating body, at least one electrode is located on the peripheral face of the conductive ceramic heating body, and the adjacent electrodes are arranged at intervals and form a conductive circuit through the conductive ceramic heating body. The conductive ceramic heating body is a silicon carbide conductive ceramic heating body. The conductive ceramic heating assembly comprises a silicon carbide conductive ceramic heating body and at least two electrodes, and the at least two electrodes are arranged on the conductive ceramic heating body at intervals, so that the whole conductive ceramic heating body conducts electricity and emits heat, and the phenomenon that the conductive ceramic heating body emits heat unevenly due to the fact that a single electrode point makes contact with an external power source is improved. The current of the conductive ceramic heating body is transmitted along the cup-shaped or hollow circular tube-shaped conductive ceramic heating body; the conductive ceramic heating assembly is good in stability and simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of heating elements, in particular to a conductive ceramic heating component. Background Art

[0002] Ceramic heating elements are an important component of heat-not-burn electronic cigarettes and have been widely used. In the prior art, ceramic heating elements often use resistance heating, which is divided into thick film heating and thin film heating, that is, printing a heating thick film slurry on the surface of the ceramic heating element, or depositing a layer of heating thin film material on the surface of the ceramic heating element by physical vapor deposition and other methods. However, setting a heating film on the surface of the ceramic heating element in the above manner is not only complicated, but also easy to fall off after a long period of use, and there are problems of durability and uneven heating of the ceramic heating element, which needs further improvement. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a conductive ceramic heating component, which has a simple structure and good stability, can realize overall conductive heating of the conductive ceramic heating body, and the conductive ceramic heating body has uniform heat generation and good durability.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a conductive ceramic heating component, including a conductive ceramic heating element, which is a cup-shaped structure or a hollow cylindrical structure; at least two electrodes are provided on the outer surface of the conductive ceramic heating element, at least one electrode is located on the outer peripheral surface of the conductive ceramic heating element, and adjacent electrodes are arranged at intervals, and adjacent electrodes form a conductive circuit through the conductive ceramic heating element, and the electrodes are used to connect to an external power supply.

[0005] Furthermore, the conductive ceramic heating element is a silicon carbide conductive ceramic heating element.

[0006] Furthermore, the conductive ceramic heating element is in a cup-shaped structure or a hollow circular tube structure; when the conductive ceramic heating element is in a cup-shaped structure, the conductive ceramic heating element includes a cylindrical heating part and a bottom heating plate arranged at the lower end of the cylindrical heating part, and the outer surface of the bottom heating plate and the outer peripheral surface of the cylindrical heating part are respectively provided with at least one electrode; when the conductive ceramic heating element is in a hollow circular tube structure, the conductive ceramic heating element includes a non-hollow area and a hollow area running through the inner and outer surfaces of the tube wall, and the non-hollow area is provided with at least two electrodes; adjacent electrodes form a conductive circuit through the conductive ceramic heating element.

[0007] Furthermore, at least three electrodes are arranged on the surface of the conductive ceramic heating element, and adjacent electrodes are arranged at intervals, and the distance between any two adjacent electrodes is equal.

[0008] Furthermore, the conductive ceramic heating element has a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion, a first electrode is arranged in the middle of the outer surface of the bottom heating plate, and a second ring-shaped electrode is arranged on the outer peripheral surface of the cylindrical heating portion, and the second electrode surrounds the outer peripheral surface of the cylindrical heating portion.

[0009] Furthermore, the conductive ceramic heating element has a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion, a first electrode is arranged in the middle of the outer surface of the bottom heating plate, and at least two second electrodes are arranged on the outer peripheral surface of the cylindrical heating portion. The plurality of second electrodes are all surrounded by the outer peripheral surface of the cylindrical heating portion and are arranged in sequence from bottom to top, and the distance between the lowest second electrode and the first electrode and the distance between any two adjacent second electrodes are equal.

[0010] Furthermore, the conductive ceramic heating element has a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion; at least two first electrodes are arranged on the outer surface of the bottom heating plate, and at least two second electrodes are arranged on the outer peripheral surface of the cylindrical heating portion. The plurality of second electrodes are all surrounded by the outer peripheral surface of the cylindrical heating portion and are arranged in sequence from bottom to top, and the distance between the lowest second electrode and the nearest first electrode, the distance between any two adjacent first electrodes, and the distance between any two adjacent second electrodes are all equal.

[0011] Furthermore, the conductive ceramic heating element has a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion, a first electrode is arranged in the middle of the outer surface of the bottom heating plate, and at least two second electrodes are arranged on the outer peripheral surface of the cylindrical heating portion, each of the second electrodes extends from the lower end to the upper end of the outer peripheral surface of the conductive ceramic heating element along the axial direction of the conductive ceramic heating element, and the distance between each second electrode and the first electrode and the distance between any two adjacent second electrodes are equal.

[0012] Furthermore, the conductive ceramic heating element has a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion, the outer surface of the bottom heating plate is provided with at least two first electrodes, the outer peripheral surface of the cylindrical heating portion is provided with at least two second electrodes, each of the second electrodes extends from the lower end to the upper end of the outer peripheral surface of the conductive ceramic heating element along the axial direction of the conductive ceramic heating element, and the distance between each second electrode and the nearest first electrode, the distance between any two adjacent first electrodes, and the distance between any two adjacent second electrodes are all equal.

[0013] Furthermore, the conductive ceramic heating element is in the form of a hollow circular tube, comprising a hollow area penetrating the inner and outer surfaces of the tube wall and a non-hollow area forming a conductive circuit with the electrode, wherein the non-hollow area is in the form of repeatedly tortuous strips; the non-hollow area comprises a first electrode mounting area and a second electrode mounting area which are arranged at intervals and respectively located at the head and tail ends of the non-hollow area, wherein the first electrode mounting area and the second electrode mounting area are respectively provided with a first electrode and a second electrode, and the first electrode, the non-hollow area and the second electrode are sequentially connected to form a conductive circuit.

[0014] Furthermore, the first electrode and the second electrode are both located at the upper end of the outer peripheral surface of the conductive ceramic heating body or are both located at the lower end of the outer peripheral surface of the conductive ceramic heating body.

[0015] Furthermore, the conductive ceramic heating element is formed by sintering silicon carbide particles and conductive phase material particles to form an integrated structure.

[0016] Furthermore, the conductive phase material is at least one of titanium carbide, titanium nitride or titanium boride.

[0017] Furthermore, the electrode is printed on the surface of the conductive ceramic heating element by conductive paste.

[0018] The beneficial effects of the utility model are as follows: the conductive ceramic heating component of the utility model comprises a conductive ceramic heating element and at least two electrodes, at least two electrodes are arranged on the conductive ceramic heating element at intervals, and are used to be connected to an external power source so that the conductive ceramic heating element as a whole is conductive and generates heat, at least one electrode is arranged on the outer peripheral surface of the conductive ceramic heating element, so as to improve the phenomenon that a single electrode point contacts the external power source, thereby causing uneven heating of the conductive ceramic heating element, and the current of the conductive ceramic heating element is transmitted along the cup-shaped or hollow cylindrical conductive ceramic heating element; the conductive ceramic heating component has good stability, which ensures the overall conductive heating of the conductive ceramic heating element, and its structure is simple, with good durability, and is convenient for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the conductive ceramic heating component of Example 1.

[0020] Figure 2 is a cross-sectional view of the conductive ceramic heating component of Example 1.

[0021] Figure 3 3. It is a bottom view of the conductive ceramic heating component of Example 1.

[0022] Figure 4 This is a front view of the conductive ceramic heating component of Example 2.

[0023] Figure 5 This is a front view of the conductive ceramic heating component of Example 3.

[0024] Figure 6 It is a bottom view of the conductive ceramic heating component of Example 4.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the conductive ceramic heating component of Example 6.

[0026] Figure 8 It is a front view of the conductive ceramic heating component of Example 6.

[0027] Fig. 9 It is a bottom view of the conductive ceramic heating component of Example 6.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the conductive ceramic heating component of Example 7.

[0029] Fig.11 This is a front view of the conductive ceramic heating component of Example 7.

[0030] Fig.12 It is a bottom view of the conductive ceramic heating component of Example 7.

[0031] The figures are marked as: 1. conductive ceramic heating element; 11. cylindrical heating part; 12. bottom heating plate; 13. non-hollow area; 131. circumferential extension section; 132. connecting section; 133. axial extension section; 14. hollow area; 2. first electrode; 3. second electrode. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0033] Example 1

[0034] like Figure 1-3As shown, a conductive ceramic heating component comprises a conductive ceramic heating element 1, wherein the conductive ceramic heating element 1 is a silicon carbide conductive ceramic heating element 1; the conductive ceramic heating element 1 is in a cup-shaped structure, comprising a cylindrical heating portion 11 and a bottom heating plate 12 arranged at the lower end of the cylindrical heating portion 11, a first electrode 2 is arranged in the middle of the outer surface of the bottom heating plate 12, i.e., in the middle of the lower end surface of the bottom heating plate 12, the cross section of the first electrode 2 is circular and protrudes downwardly out of the outer surface of the bottom heating plate 12, the cylindrical heating portion 11 is in a cylindrical shape with openings at both the upper and lower ends, and the bottom heating plate 12 closes the opening of the cylindrical heating portion 11; a second annular electrode 3 is arranged on the outer peripheral surface of the cylindrical heating portion 11, the second electrode 3 surrounds the outer peripheral surface of the cylindrical heating portion 11, i.e., surrounds the outer peripheral curved surface of the cylindrical heating portion 11; the first electrode 2 and the second electrode 3 are arranged at intervals; the first electrode 2 and the second electrode 3 are used to connect to an external power supply.

[0035] The conductive ceramic heating component of this embodiment includes a cup-shaped conductive ceramic heating element 1 and a first electrode 2 and a second electrode 3 arranged at intervals. The first electrode 2 and the second electrode 3 are respectively arranged on the bottom heating plate 12 and the cylindrical heating portion 11. The second electrode 3 is printed circumferentially along the outer peripheral curved surface of the cylindrical heating portion 11 and is used to connect with an external power supply so that the conductive ceramic heating element 1 is conductively heated as a whole. The current is transmitted circumferentially from the bottom heating plate 12 along the cylindrical heating portion 11. The conductive ceramic heating component has good stability, which ensures the overall conductive heating of the conductive ceramic heating element 1. The structure and preparation process of the conductive ceramic heating component are simple, which is convenient for mass production.

[0036] Furthermore, the conductive ceramic heating element 1 is a silicon carbide conductive ceramic heating element 1. The silicon carbide conductive ceramic heating element 1 has excellent room temperature mechanical properties and high temperature mechanical properties, and has good bending strength, oxidation resistance, corrosion resistance and wear resistance. Furthermore, the conductive ceramic heating element 1 is formed by sintering silicon carbide particles and conductive phase material particles to form an integrated structure. The conductive phase material is at least one of titanium carbide, titanium nitride or titanium boride.

[0037] Furthermore, the electrode is printed on the surface of the conductive ceramic heating element 1 by a conductive paste. In this embodiment, the electrode is printed on the surface of the conductive ceramic heating element 1 by a conductive paste, and then baked and sintered to achieve a stable connection with the conductive ceramic heating element 1. The electrode can be connected to an external power source through a lead wire to achieve uniform heating of the conductive ceramic heating element 1.

[0038] Example 2

[0039] like Figure 4As shown, a conductive ceramic heating component comprises a conductive ceramic heating element 1, wherein the conductive ceramic heating element 1 is a silicon carbide conductive ceramic heating element 1; the conductive ceramic heating element 1 is a cup-shaped structure, wherein the conductive ceramic heating element 1 comprises a cylindrical heating portion 11 and a bottom heating plate 12 arranged at the lower end of the cylindrical heating portion 11, wherein a first electrode 2 is arranged in the middle of the outer surface of the bottom heating plate 12, wherein the cross section of the first electrode 2 is circular, and at least two second electrodes 3 are arranged on the outer peripheral surface of the cylindrical heating portion 11, wherein a plurality of second electrodes 3 are all arranged around the outer peripheral surface of the cylindrical heating portion 11 and are arranged in sequence from bottom to top, wherein the distance between the lowest second electrode 3 and the first electrode 2 and the distance between any two adjacent second electrodes 3 are equal, namely, the sum of the distance between the first electrode 2 and the edge of the bottom heating plate 12 and the distance from the edge of the bottom heating plate 12 to the lowest second electrode 3 are equal to the distance between any two adjacent second electrodes 3; the first electrode 2 and the second electrode 3 are used to be connected to an external power source.

[0040] The conductive ceramic heating component of this embodiment includes a cup-shaped conductive ceramic heating body 1 and a first electrode 2 and a plurality of second electrodes 3 arranged at intervals. The first electrode 2 and the plurality of second electrodes 3 are respectively arranged on a bottom heating plate 12 and a cylindrical heating portion 11, and are used to be connected to an external power source, so that the first electrode 2 and the lowermost second electrode 3 are connected through the bottom heating plate 12 and the cylindrical heating portion 11 to form a conductive loop, and any two adjacent second electrodes 3 are connected through the cylindrical heating portion 11 to form other conductive loops, and the current is transmitted circumferentially from the bottom heating plate 12 along the cylindrical heating portion 11; the conductive ceramic heating component has good stability, ensuring the overall conductive heating of the conductive ceramic heating body 1, and the structure and preparation process of the conductive ceramic heating component are simple, which is convenient for mass production.

[0041] In this embodiment, the number of the second electrodes 3 is two, and the two second electrodes 3 are both annular and are arranged on the outer peripheral surface of the cylindrical heating portion 11 from bottom to top. Due to the arrangement of the above structure, the three electrodes are connected to the external power supply to form a plurality of parallel conductive loops, and the conductive ceramic heating element 1 itself can be used as a heating conductor to achieve uniform heating of the conductive ceramic heating element 1. The rest of the contents of this embodiment are the same as those of embodiment 1.

[0042] Example 3

[0043] like Figure 5As shown, a conductive ceramic heating component includes a conductive ceramic heating element 1, which is a silicon carbide conductive ceramic heating element 1; the conductive ceramic heating element 1 is a cup-shaped structure, and includes a cylindrical heating portion 11 and a bottom heating plate 12 arranged at the lower end of the cylindrical heating portion 11, and the outer surface of the bottom heating plate 12 is provided with at least two first electrodes 2, and the cross-section of the first electrode 2 is circular, and the outer peripheral surface of the cylindrical heating portion 11 is provided with at least two second electrodes 3, and the plurality of second electrodes 3 are all surrounded by the outer peripheral surface of the cylindrical heating portion 11 and are arranged in sequence from bottom to top, and the distance between the lowest second electrode 3 and the nearest first electrode 2, the distance between any two adjacent first electrodes 2, and the distance between any two adjacent second electrodes 3 are all equal; the first electrode 2 and the second electrode 3 are used to connect to an external power supply.

[0044] The conductive ceramic heating component of this embodiment includes a cup-shaped conductive ceramic heating element 1 and a plurality of first electrodes 2 and a plurality of second electrodes 3 arranged at intervals. The plurality of first electrodes 2 and the plurality of second electrodes 3 are respectively arranged on a bottom heating plate 12 and a cylindrical heating portion 11, and are used to be connected to an external power source so that any two adjacent first electrodes 2 form a conductive loop through the bottom heating plate 12; the first electrode 2 and the lowest second electrode 3 are connected through the bottom heating plate 12 and the cylindrical heating portion 11 to form a conductive loop; any two adjacent second electrodes 3 are connected through the cylindrical heating portion 11 to form other conductive loops, and the current is transmitted from the bottom heating plate 12 along the circumferential direction of the cylindrical heating portion 11 to achieve overall conductivity and uniform heating of the conductive ceramic heating element 1. The conductive ceramic heating component has good stability, simple structure, and is convenient for mass production.

[0045] In this embodiment, the number of the first electrode 2 and the second electrode 3 are both two, the two first electrodes 2 are symmetrically arranged on the bottom heating plate 12, and the two second electrodes 3 are both ring-shaped and arranged from bottom to top on the outer peripheral surface of the cylindrical heating part 11. Due to the arrangement of the above structure, the four electrodes are connected to the external power supply, and the two adjacent electrodes are connected through the area of ​​the conductive ceramic heating element 1 located between the two electrodes to form a conductive loop. The conductive ceramic heating element 1 itself can be used as a heating conductor to achieve uniform heating of the conductive ceramic heating element 1. The rest of the content of this embodiment is the same as that of Example 1.

[0046] Example 4

[0047] like Figure 6As shown, a conductive ceramic heating component includes a conductive ceramic heating element 1, the conductive ceramic heating element 1 is a cup-shaped structure, the conductive ceramic heating element 1 includes a cylindrical heating portion 11 and a bottom heating plate 12 arranged at the lower end of the cylindrical heating portion 11, a first electrode 2 is arranged in the middle of the outer surface of the bottom heating plate 12, the cross section of the first electrode 2 is circular, and at least two second electrodes 3 are arranged on the outer peripheral surface of the cylindrical heating portion 11, each of the second electrodes 3 extends from the lower end to the upper end of the outer peripheral surface of the conductive ceramic heating element 1 along the axial direction of the conductive ceramic heating element 1, and the distance between each second electrode 3 and the first electrode 2 and the distance between any two adjacent second electrodes 3 are equal. In this embodiment, each of the second electrodes 3 extends from the lower end of the outer peripheral surface of the conductive ceramic heating element 1 to the opening at the upper end along the axial direction of the conductive ceramic heating element 1.

[0048] The conductive ceramic heating component of this embodiment includes a cup-shaped conductive ceramic heating element 1 and a first electrode 2 and a plurality of second electrodes 3 arranged at intervals, wherein the first electrode 2 is arranged on a bottom heating plate 12, and the plurality of second electrodes 3 are strip-shaped and distributed on the outer peripheral surface of a cylindrical heating portion 11 in a ring array, and are used to be connected to an external power source, so that the first electrode 2 and the second electrode 3 are connected through the bottom heating plate 12 and the cylindrical heating portion 11 to form a conductive loop, and any two adjacent second electrodes 3 are connected through the cylindrical heating portion 11 to form other conductive loops, and the current is transmitted from the bottom heating plate 12 along the circumference of the cylindrical heating portion 11; the conductive ceramic heating component has good stability, which ensures the overall conductive heating of the conductive ceramic heating element 1, and the structure and preparation process of the conductive ceramic heating component are simple, which is convenient for mass production.

[0049] In this embodiment, the number of the second electrodes 3 is three, and the three second electrodes 3 are all strip-shaped and arranged in a ring array on the outer peripheral surface of the cylindrical heating portion 11. Due to the arrangement of the above structure, the four electrodes are connected to the external power supply, and the two adjacent electrodes are connected through the area of ​​the conductive ceramic heating element 1 located between the two electrodes to form a conductive loop. The conductive ceramic heating element 1 itself can serve as a heating conductor to achieve uniform heating of the conductive ceramic heating element 1. The rest of the content of this embodiment is the same as that of embodiment 1.

[0050] Example 5

[0051] In this embodiment, the conductive ceramic heating element 1 is a cup-shaped structure, and the conductive ceramic heating element 1 includes a cylindrical heating part 11 and a bottom heating plate 12 arranged at the lower end of the cylindrical heating part 11, and at least two first electrodes 2 are arranged in the middle of the outer surface of the bottom heating plate 12, and the cross-section of the first electrode 2 is circular. The outer peripheral surface of the cylindrical heating part 11 is provided with at least two second electrodes 3, and each of the second electrodes 3 extends from the lower end to the upper end of the outer peripheral surface of the conductive ceramic heating element 1 along the axial direction of the conductive ceramic heating element 1, and the distance between each second electrode 3 and the first electrode 2, the distance between any two adjacent first electrodes 2, and the distance between any two adjacent second electrodes 3 are all equal.

[0052] In this embodiment, the number of the first electrode 2 and the second electrode 3 are both three, and the three second electrodes 3 are all strip-shaped and distributed in a ring array on the outer peripheral surface of the cylindrical heating portion 11. Due to the arrangement of the above structure, the six electrodes are all connected to the external power supply, and the two adjacent electrodes are connected through the region of the conductive ceramic heating element 1 located between the two electrodes to form a conductive loop. The conductive ceramic heating element 1 itself can be used as a heating conductor to achieve uniform heating of the conductive ceramic heating element 1. The rest of the content of this embodiment is the same as that of embodiment 1.

[0053] Example 6

[0054] like Figure 7-9 As shown, the conductive ceramic heating element 1 is in a hollow cylindrical structure, and the non-hollow area 13 of the conductive ceramic heating element 1 is in a strip shape that is repeatedly tortuous; the non-hollow area 13 of the conductive ceramic heating element 1 includes a first electrode installation area and a second electrode installation area that are arranged at intervals, and the first electrode installation area and the second electrode installation area are respectively provided with a first electrode 2 and a second electrode 3, and the first electrode 2, the non-hollow area 13 and the second electrode 3 are sequentially connected to form a conductive circuit. The first electrode 2 and the second electrode 3 are both printed at the head and tail ends of the non-hollow area 13 with conductive paste, and the first electrode 2 and the second electrode 3 are connected via the strip-shaped non-hollow area 13. When the first electrode 2 and the second electrode 3 are connected to an external power supply, the non-hollow area 13 plays a role in heating and conducting electricity.

[0055] Further, the first electrode 2 and the second electrode 3 are both located at the lower end of the outer peripheral surface of the conductive ceramic heating element 1 or are both located at the lower end of the outer peripheral surface of the conductive ceramic heating element 1. Due to the arrangement of the above structure, the first electrode 2 and the second electrode 3 are located at the same end of the conductive ceramic heating element 1, which is convenient for connection with an external power source and convenient for use. In this embodiment, the first electrode 2 and the second electrode 3 are preferably arranged at the lower end of the outer peripheral surface of the conductive ceramic heating element 1.

[0056] In this embodiment, the non-hollow area 13 includes a first connecting area and a second connecting area, the first connecting area and the second connecting area are symmetrical relative to the central axis plane of the conductive ceramic heating element 1, the lower ends of the first connecting area and the second connecting area are connected, and the first electrode mounting area and the second electrode mounting area are respectively arranged at the lower ends of the first connecting area and the second connecting area.

[0057] Furthermore, the first connecting area and the second connecting area each include a plurality of circumferential extension segments 131 and a plurality of connecting segments 132 extending along the outer peripheral surface of the conductive ceramic heating element 1, the plurality of circumferential extension segments 131 are arranged at intervals and parallel to each other, the plurality of circumferential extension segments 131 are arranged in sequence from top to bottom, the end of the circumferential extension segment 131 is connected to the end of another circumferential extension segment 131 through a connecting segment 132, and the first electrode installation area and the second electrode installation area are respectively arranged at the two circumferential extension segments 131 at the bottom. Due to the arrangement of the above structure, the non-hollow area 13 forms a strip-shaped heating conductor that is repeatedly twisted in a certain manner, which improves the heating efficiency of the conductive ceramic heating element 1, is easy to process, and has strong practicality. The rest of the content of this embodiment is the same as that of embodiment 1.

[0058] Example 7

[0059] like Figure 10-12 As shown, the first connecting area and the second connecting area both include a plurality of axial extension sections 133 and a plurality of connecting sections 132 extending from top to bottom along the axial direction of the conductive ceramic heating element 1. The plurality of axial extension sections 133 are arranged at intervals and parallel to each other. The plurality of axial extension sections 133 are arranged in sequence along the circumferential direction of the outer peripheral surface of the conductive ceramic heating element 1. The end of each axial extension section 133 is connected to the end of another axial extension section 133 through a connecting section 132. The first electrode installation area and the second electrode installation area are respectively arranged in two axial extension sections 133. Due to the arrangement of the above structure, the non-hollow area 13 forms a strip-shaped heating conductor that is repeatedly twisted in a certain manner, thereby improving the heating efficiency of the conductive ceramic heating element 1, and is easy to process and has strong practicality. The rest of the content of this embodiment is the same as that of embodiment 6.

[0060] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.

Claims

1. A conductive ceramic heating assembly, characterized in that: It includes a conductive ceramic heating element, which is a cup-shaped structure or a hollow cylindrical structure; at least two electrodes are arranged on the outer surface of the conductive ceramic heating element, at least one electrode is located on the outer peripheral surface of the conductive ceramic heating element, adjacent electrodes are arranged at intervals, and adjacent electrodes form a conductive circuit through the conductive ceramic heating element, and the electrodes are used to connect to an external power supply.

2. The conductive ceramic heating assembly according to claim 1, characterized in that: At least three electrodes are arranged on the surface of the conductive ceramic heating element, and adjacent electrodes are arranged at intervals, and the distance between any two adjacent electrodes is equal.

3. The conductive ceramic heating assembly according to claim 1, characterized in that: The conductive ceramic heating element is in a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion; a first electrode is arranged in the middle of the outer surface of the bottom heating plate, and a second annular electrode is arranged on the outer peripheral surface of the cylindrical heating portion, and the second electrode surrounds the outer peripheral surface of the cylindrical heating portion.

4. The conductive ceramic heating assembly according to claim 1, characterized in that: The conductive ceramic heating element is in a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion; a first electrode is arranged in the middle of the outer surface of the bottom heating plate, and at least two second electrodes are arranged on the outer peripheral surface of the cylindrical heating portion. The plurality of second electrodes are all surrounded by the outer peripheral surface of the cylindrical heating portion and are arranged in sequence from bottom to top, and the distance between the lowest second electrode and the first electrode and the distance between any two adjacent second electrodes are equal.

5. The conductive ceramic heating assembly according to claim 1, characterized in that: The conductive ceramic heating element is in a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion; at least two first electrodes are arranged on the outer surface of the bottom heating plate, and at least two second electrodes are arranged on the outer peripheral surface of the cylindrical heating portion. The plurality of second electrodes are all surrounded by the outer peripheral surface of the cylindrical heating portion and are arranged in sequence from bottom to top, and the distance between the lowest second electrode and the nearest first electrode, the distance between any two adjacent first electrodes, and the distance between any two adjacent second electrodes are all equal.

6. The conductive ceramic heating assembly according to claim 1, characterized in that: The conductive ceramic heating element is in a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion, the outer surface of the bottom heating plate is provided with at least two first electrodes, the outer peripheral surface of the cylindrical heating portion is provided with at least two second electrodes, each of the second electrodes extends from the lower end to the upper end of the outer peripheral surface of the conductive ceramic heating element along the axial direction of the conductive ceramic heating element, and the distance between each second electrode and the nearest first electrode, the distance between any two adjacent first electrodes, and the distance between any two adjacent second electrodes are all equal.

7. The conductive ceramic heating assembly according to claim 1, characterized in that: The conductive ceramic heating element is in a cup-shaped structure, comprising a cylindrical heating portion and a bottom heating plate arranged at the lower end of the cylindrical heating portion, a first electrode is arranged in the middle of the outer surface of the bottom heating plate, and at least two second electrodes are arranged on the outer peripheral surface of the cylindrical heating portion, each of the second electrodes extends from the lower end to the upper end of the outer peripheral surface of the conductive ceramic heating element along the axial direction of the conductive ceramic heating element, and the distance between each second electrode and the first electrode and the distance between any two adjacent second electrodes are equal.

8. The conductive ceramic heating assembly according to claim 1, characterized in that: The conductive ceramic heating element is in a hollow cylindrical structure, comprising a hollow area penetrating the inner and outer surfaces of the tube wall and a non-hollow area forming a conductive circuit with the electrode, wherein the non-hollow area is provided with at least two electrodes.

9. The conductive ceramic heating assembly according to claim 8, characterized in that: The non-hollow area is in the shape of a repeatedly tortuous strip; the non-hollow area includes a first electrode mounting area and a second electrode mounting area which are arranged at intervals and respectively located at the head and tail ends of the non-hollow area, the first electrode mounting area and the second electrode mounting area are respectively provided with a first electrode and a second electrode, and the first electrode, the non-hollow area and the second electrode are connected in sequence to form a conductive circuit.

10. The conductive ceramic heating assembly according to claim 8, characterized in that: The conductive ceramic heating element is a silicon carbide conductive ceramic heating element.

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