Double-layer double-temperature-zone ceramic heating sheet

Abstract

The utility model relates to the technical field of ceramic heating bodies, in particular to a double-layer double-temperature-zone ceramic heating sheet, which comprises a first ceramic sheet, a second ceramic sheet and a third ceramic sheet which are sequentially arranged from bottom to top, a first heating circuit is printed on the first ceramic sheet, one end of the first heating circuit is welded with a first electrode, and the other end of the first heating circuit is welded with a second electrode. A first common electrode is welded at the other end of the first heating circuit; a second heating circuit is printed on the second ceramic chip, a second electrode is welded to one end of the second heating circuit, and a second common electrode is welded to the other end of the second heating circuit; the first heating line bonding pad is conducted with the first electrode, the second heating line bonding pad is conducted with the second electrode, the common line bonding pad is conducted with the second common electrode, the common line bonding pad is conducted with the first common electrode, and the second common electrode is conducted with the first common electrode, so that three-section power heating is formed. Half-power and full-power heating of the heating sheet is realized.

Description

Technical Field

[0001] This utility model relates to the field of ceramic heating element technology, specifically to a double-layer, dual-temperature-zone ceramic heating element. Background Technology

[0002] Prior art application number 201420318225.7 discloses a novel ceramic heating element, including a ceramic heating element body. The ceramic heating element body includes a ceramic substrate and a heating circuit disposed on the ceramic substrate. The heating circuit is tightly wound in a snake shape on the ceramic substrate, forming a heating area. The diameter of the circuit cross-section of the heating circuit gradually increases from the input / output end to the middle section of the heating circuit, thereby reducing the resistance in the middle section of the heating circuit, reducing heat generation, and preventing heat accumulation in the middle section of the heating circuit. It is evident that traditional ceramic heating elements are mostly single-layer, single-group heating circuit designs. Conventional single-power ceramic heating elements only have one fixed power for heating, which cannot meet the needs of applications requiring multiple power levels to adjust different heating conditions. Summary of the Invention

[0003] To overcome the shortcomings and deficiencies of existing technologies, the purpose of this utility model is to provide a double-layer, double-temperature-zone ceramic heating element. By setting up a double-layer, double-temperature-zone system, i.e., two sets of heating circuits, it forms three power heating segments. The power between each layer can be automatically adjusted, achieving half-power and full-power heating of a small-volume ceramic heating element. This allows users to select different power levels according to changes in ambient temperature, making it energy-saving, convenient, and highly practical. The double-layer, double-temperature-zone design provides uniform heating, high thermal efficiency, adjustable power, and good energy efficiency and safety. The double-layer and double-temperature-zone heating design ensures uniform heat distribution within the heating element, avoiding localized overheating or undercooling, thereby improving heating uniformity. This helps maintain a consistent temperature on the surface of the heating element, ensuring that uneven temperature distribution does not occur during heating.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A double-layer, dual-temperature-zone ceramic heating element includes a first ceramic sheet, a second ceramic sheet, and a third ceramic sheet arranged sequentially from bottom to top. The upper surface of the first ceramic sheet is printed with a first heating circuit, one end of which is welded to a first electrode, and the other end of which is welded to a first common electrode. One end of the second ceramic sheet has a first main electrode through-hole communicating with the first electrode, and the other end has a first common electrode through-hole communicating with the first common electrode. The upper surface of the second ceramic sheet is printed with a second heating circuit, one end of which is welded to a second electrode, and the other end of which is welded to a second common electrode. One end of the third ceramic sheet has a second electrode through-hole communicating with the second electrode and a first auxiliary electrode through-hole communicating with the first main electrode through-hole, and the other end has a second common electrode through-hole communicating with the second common electrode.

[0006] The third ceramic sheet is welded with a first heating circuit pad, a second heating circuit pad, and a common circuit pad. The first heating circuit pad is connected to the first electrode through a first secondary electrode through-hole and a first main electrode through-hole. The second heating circuit pad is connected to the second electrode through a second electrode through-hole. The common circuit pad is connected to the second common electrode through a second common electrode through-hole. The common circuit pad is connected to the first common electrode through a second common electrode through-hole, a second common electrode, and a first common electrode through-hole. The second common electrode is connected to the first common electrode through a first common electrode through-hole.

[0007] Furthermore, the first heating circuit pad is soldered with a first heating lead.

[0008] Furthermore, a second heating lead is soldered to the second heating circuit pad.

[0009] Furthermore, the common line pad is soldered with a common heating lead.

[0010] Furthermore, the second electrode through-hole is formed at one end of the third ceramic sheet near the second electrode, and the second heating circuit pad is soldered to one end of the third ceramic sheet near the second electrode through-hole.

[0011] Furthermore, the first main electrode through hole is opened at the end of the second ceramic sheet near the first electrode, the first auxiliary electrode through hole is opened at the end of the third ceramic sheet near the first main electrode through hole, and the first heating circuit pad is soldered to the end of the third ceramic sheet near the first auxiliary electrode through hole.

[0012] Furthermore, the common line pad is soldered to one end of the third ceramic sheet near the second common electrode.

[0013] Furthermore, the second electrode through hole and the first auxiliary electrode through hole are arranged adjacent to each other.

[0014] The beneficial effects of this utility model are as follows: The double-layer, double-temperature-zone ceramic heating element of this utility model, by setting up a double-layer, double-temperature-zone system (i.e., double-group heating circuits), can achieve three power modes for double-layer, double-temperature-zone heating. The first electrode, the first heating circuit, and the first common electrode form one temperature zone, operating independently as the first type of half-power heating (single-layer, single-temperature-zone heating). The second electrode, the second heating circuit, and the second common electrode form another temperature zone, operating independently as the second type of half-power heating (single-layer, single-temperature-zone heating). The second common electrode is connected to the first common electrode through a through-hole, meaning both temperature zones share the same common electrode, and both temperature zones operate simultaneously as the third type of full-power heating, which is also double-layer, double-temperature-zone heating. The power between each layer can be automatically adjusted, achieving half-power and full-power heating for the small-volume ceramic heating element. This allows users to select different power levels according to changes in ambient temperature, making it energy-saving, convenient, and highly practical. Simultaneously, the double-layer and double-temperature-zone heating design ensures uniform heat distribution within the heating element, avoiding localized overheating or underheating, thereby improving heating uniformity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a double-layer, dual-temperature-zone ceramic heating element.

[0016] Figure 2 This is a top view of a double-layer, dual-temperature-zone ceramic heating element.

[0017] Figure 3 This is a schematic diagram showing the exploded structure of a double-layer, dual-temperature-zone ceramic heating element.

[0018] The reference numerals in the figures include:

[0019] 1. First ceramic sheet; 2. Second ceramic sheet; 21. First main electrode through-hole; 22. First common electrode through-hole; 3. Third ceramic sheet; 31. Second electrode through-hole; 32. First auxiliary electrode through-hole; 33. Second common electrode through-hole; 4. First heating circuit; 41. First electrode; 42. First common electrode; 5. Second heating circuit; 51. Second electrode; 52. Second common electrode; 6. First heating circuit pad; 61. First heating lead; 7. Second heating circuit pad; 71. Second heating lead; 8. Common circuit pad; 81. Common heating lead. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0021] like Figure 1-3As shown, a double-layer, dual-temperature-zone ceramic heating element includes a first heating circuit pad 6, a second heating circuit pad 7, a common circuit pad 8, and a first ceramic sheet 1, a second ceramic sheet 2, and a third ceramic sheet 3 arranged sequentially from bottom to top. A first heating circuit 4 is printed on the upper surface of the first ceramic sheet 1. A first electrode 41 is soldered to one end of the first heating circuit 4, and a first common electrode 42 is soldered to the other end of the first heating circuit 4. A first main electrode through-hole 21 communicating with the first electrode 41 is opened at one end of the second ceramic sheet 2. The first common electrode through hole 22 communicating with the first common electrode 42 is opened at one end. The upper end surface of the second ceramic sheet 2 is printed with a second heating line 5. A second electrode 51 is welded to one end of the second heating line 5, and a second common electrode 52 is welded to the other end of the second heating line 5. One end of the third ceramic sheet 3 is provided with a second electrode through hole 31 communicating with the second electrode 51 and a first auxiliary electrode through hole 32 communicating with the first main electrode through hole 21. The other end of the third ceramic sheet 3 is provided with a second common electrode through hole 33 communicating with the second common electrode 52.

[0022] The first heating line pad 6, the second heating line pad 7, and the common line pad 8 are all soldered to the third ceramic sheet 3. The first heating line pad 6 is connected to the first electrode 41 through the first secondary electrode through-hole 32 and the first main electrode through-hole 21. The second heating line pad 7 is connected to the second electrode 51 through the second electrode through-hole 31. The common line pad 8 is connected to the second common electrode 52 through the second common electrode through-hole 33. The common line pad 8 is connected to the first common electrode 42 through the second common electrode through-hole 33, the second common electrode 52, and the first common electrode through-hole 22. The second common electrode 52 is connected to the first common electrode 42 through the first common electrode through-hole 22.

[0023] This utility model's double-layer, double-temperature-zone ceramic heating element, by setting up a double-layer, double-temperature-zone, i.e., double-group heating circuits, can achieve three power modes: First power mode: The first electrode 41 and the first common electrode 42 are respectively set at both ends of the first heating circuit 4. The first heating circuit pad 6 is connected to the first electrode 41 through the first auxiliary electrode through-hole 32 and the first main electrode through-hole 21. The common circuit pad 8 is connected to the first common electrode 42 through the second common electrode through-hole 33, the second common electrode 52, and the first common electrode through-hole 22. That is, the first electrode 41, the first heating circuit 4, and the first common electrode 42 form a temperature zone, working independently as the first power heating mode, single-layer, single-temperature-zone heating; Second power mode: The second electrode 51 and the second common electrode 52 are respectively set at... At both ends of the second heating line 5, the second heating line pad 7 is connected to the second electrode 51 through the second electrode through hole 31, and the common line pad 8 is connected to the second common electrode 52 through the second common electrode through hole 33. That is, the second electrode 51, the second heating line 5, and the second common electrode 52 form a set of temperature zones, which work independently as the second power heating, single-layer single temperature zone heating; the third power: the first electrode 41, the first heating line 4, and the first common electrode 42 form a set of temperature zones, and the second electrode 51, the second heating line 5, and the second common electrode 52 form a set of temperature zones. At the same time, the second common electrode 52 is connected to the first common electrode 42 through the first common electrode through hole 22. That is, the two sets of temperature zones share the same common electrode, and the two sets of temperature zones work simultaneously as the third power heating, which is double-layer double temperature zone heating. The first and second power heating modes are half-power heating, while the third is full-power heating. The power can be automatically adjusted between each layer, enabling half-power and full-power heating of the small-volume ceramic heating element. This allows users to select different power levels based on varying ambient temperatures, making it energy-efficient, convenient, and highly practical. Simultaneously, the dual-layer and dual-temperature-zone heating design ensures uniform heat distribution within the heating element, preventing localized overheating or undercooling and improving heating uniformity. This helps maintain a consistent temperature across the heating element surface, ensuring no uneven temperature distribution during heating. Furthermore, the dual-layer and dual-temperature-zone heating design optimizes heat transfer and distribution, reducing energy waste and improving energy efficiency. It enables more efficient use of electrical energy, reducing energy consumption and thus lowering operating costs.

[0024] In this embodiment, the first main electrode through-hole 21, the first secondary electrode through-hole 32, the second electrode through-hole 31, the first common electrode through-hole 22, and the second common electrode through-hole 33 are all paste-filled holes. The solder paste filling the first heating circuit pad 6 is connected to the first electrode 41 through the first secondary electrode through-hole 32 and the first main electrode through-hole 21, realizing the connection between the first heating circuit pad 6, the first electrode 41, and the first heating circuit 4. The solder paste filling the second heating circuit pad 7 is connected to the second electrode 51 through the second electrode through-hole 31, realizing the connection between the second heating circuit pad 7 and the first electrode 51. The common circuit pad 7, the second electrode 51, and the second heating line 5 are connected. The solder paste filling the common circuit pad 8 sequentially connects to the first common electrode 42 through the second common electrode through-hole 33, the second common electrode 52, and the first common electrode through-hole 22, thus achieving connection between the common circuit pad 8 and the first common electrode 42 of the first heating line 4, and the second common electrode 52 of the second heating line 5. Simultaneously, the second common electrode 52 connects to the first common electrode 42 through the solder paste flowing through the first common electrode through-hole 22, thereby achieving connection between the first heating line 4 and the second heating line 5. Each group of heating lines forms a temperature zone, creating two groups of heating lines and three power levels. The power between each layer can be automatically adjusted to achieve half-power and full-power heating of the small-volume ceramic heating element. This allows users to select different power levels according to changes in ambient temperature, making it energy-saving, convenient, and highly practical.

[0025] Furthermore, the first heating circuit pad 6 is soldered with a first heating lead 61, which is used to connect with other circuits or devices to achieve half-power heating.

[0026] Furthermore, the second heating circuit pad 7 is soldered with a second heating lead 71, which is used to connect with other circuits or devices to achieve half-power heating.

[0027] Furthermore, the common line pad 8 is soldered with a common heating lead 81, which is used to connect with other circuits or devices to achieve full-power heating.

[0028] Furthermore, the second electrode through hole 31 is opened at one end of the third ceramic sheet 3 near the second electrode 51, and the second heating circuit pad 7 is soldered to one end of the third ceramic sheet 3 near the second electrode through hole 31, so that the pad paste filled by the second heating circuit pad 7 can be connected to the second electrode 51 through the second electrode through hole 31, thereby realizing the connection between the second heating circuit pad 7, the second electrode 51 and the second heating circuit 5, resulting in a compact structure.

[0029] Furthermore, the first main electrode through-hole 21 is opened at the end of the second ceramic sheet 2 near the first electrode 41, the first auxiliary electrode through-hole 32 is opened at the end of the third ceramic sheet 3 near the first main electrode through-hole 21, and the first heating circuit pad 6 is soldered to the end of the third ceramic sheet 3 near the first auxiliary electrode through-hole 32. This facilitates the solder paste filling the first heating circuit pad 6 to pass through the first auxiliary electrode through-hole 32 and the first main electrode through-hole 21 in sequence and to conduct with the first electrode 41, thereby realizing the conduction between the first heating circuit pad 6, the first electrode 41 and the first heating circuit 4, which is convenient and quick.

[0030] Furthermore, the common circuit pad 8 is soldered to one end of the third ceramic sheet 3 near the second common electrode 52, so that the solder paste filling the common circuit pad 8 passes through the second common electrode through hole 33, the second common electrode 52 and the first common electrode through hole 22 in sequence and is connected to the first common electrode 42, thereby realizing the connection between the common circuit pad 8 and the first common electrode 42 of the first heating circuit 4 and the second common electrode 52 of the second heating circuit 5.

[0031] Furthermore, the second electrode through hole 31 and the first auxiliary electrode through hole 32 are arranged adjacent to each other, which is simple in structure and facilitates the realization of double-layer dual-temperature zone heating.

[0032] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A double-layer, dual-temperature-zone ceramic heating element, characterized in that: The system includes a first ceramic plate (1), a second ceramic plate (2), and a third ceramic plate (3) arranged sequentially from bottom to top. A first heating circuit (4) is printed on the upper surface of the first ceramic plate (1). A first electrode (41) is soldered to one end of the first heating circuit (4), and a first common electrode (42) is soldered to the other end of the first heating circuit (4). A first main electrode through hole (21) communicating with the first electrode (41) is opened at one end of the second ceramic plate (2), and a first common electrode through hole (42) communicating with the first common electrode (42) is opened at the other end of the second ceramic plate (2). Hole (22), the upper surface of the second ceramic sheet (2) is printed with a second heating circuit (5), one end of the second heating circuit (5) is welded with a second electrode (51), and the other end of the second heating circuit (5) is welded with a second common electrode (52); one end of the third ceramic sheet (3) is provided with a second electrode through hole (31) communicating with the second electrode (51) and a first auxiliary electrode through hole (32) communicating with the first main electrode through hole (21), and the other end of the third ceramic sheet (3) is provided with a second common electrode through hole (33) communicating with the second common electrode (52); The third ceramic sheet (3) is welded with a first heating line pad (6), a second heating line pad (7), and a common line pad (8). The first heating line pad (4) is connected to the first electrode (41) through the first secondary electrode through hole (32) and the first main electrode through hole (21) in sequence. The second heating line pad (5) is connected to the second electrode (51) through the second electrode through hole (31). The common line pad (8) is connected to the second common electrode (52) through the second common electrode through hole (33). The common line pad (8) is connected to the first common electrode (42) through the second common electrode through hole (33), the second common electrode (52), and the first common electrode through hole (22) in sequence. The second common electrode (52) is connected to the first common electrode (42) through the first common electrode through hole (22).

2. The double-layer dual-temperature zone ceramic heating element according to claim 1, characterized in that: The first heating circuit pad (6) is soldered with a first heating lead (61).

3. The double-layer dual-temperature zone ceramic heating element according to claim 1, characterized in that: The second heating circuit pad (7) is soldered with a second heating lead (71).

4. The double-layer dual-temperature zone ceramic heating element according to claim 1, characterized in that: The common line pad (8) is soldered with a common heating lead (81).

5. The double-layer dual-temperature zone ceramic heating element according to claim 1, characterized in that: The second electrode through hole (31) is opened at one end of the third ceramic sheet (3) near the second electrode (51), and the second heating circuit pad (7) is soldered to one end of the third ceramic sheet (3) near the second electrode through hole (31).

6. The double-layer dual-temperature zone ceramic heating element according to claim 1, characterized in that: The first main electrode through hole (21) is opened at one end of the second ceramic plate (2) near the first electrode (41), the first auxiliary electrode through hole (32) is opened at one end of the third ceramic plate (3) near the first main electrode through hole (21), and the first heating circuit pad (6) is soldered to one end of the third ceramic plate (3) near the first auxiliary electrode through hole (32).

7. The double-layer dual-temperature zone ceramic heating element according to claim 1, characterized in that: The common line pad (8) is soldered to one end of the third ceramic sheet (3) near the second common electrode (52).

8. The double-layer dual-temperature zone ceramic heating element according to claim 1, characterized in that: The second electrode through hole (31) and the first auxiliary electrode through hole (32) are arranged adjacent to each other.

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