Ceramic heating sheet capable of uniformly heating

Abstract

The invention provides a ceramic heating sheet capable of uniformly heating. The ceramic heating sheet comprises an upper ceramic sheet, a plurality of heating bodies and a lower ceramic sheet, the multiple heating bodies are arranged in a matrix mode, and the interval between the inner sides of the matrix arrangement is larger than the interval between the outer sides of the matrix arrangement. Each heating body comprises a positive electrode, a first heating resistor, a second heating resistor and a negative electrode, the two ends of the first heating resistor are connected with the positive electrode and the negative electrode respectively, and the two ends of the second heating resistor are connected with the positive electrode and the negative electrode respectively; the heating bodies are connected in series or in parallel according to set voltage and power; and moreover, the heating speed is high, and the use of a user is facilitated.

Description

Technical Field

[0001] The invention relates to a ceramic heating sheet capable of generating heat uniformly. Background Art

[0002] Ceramic heating elements are a new generation of high-efficiency, green and environmentally friendly heating devices. They are widely used in various heating products such as industrial and agricultural technology, communications, medical treatment, and daily life. They are used to provide heat sources for heating components or are used directly as heating components.

[0003] At present, the ceramic heating sheet on the domestic and foreign markets is a flat structure composed of a ceramic sheet, a heating resistor, and a lead. The heating resistor is located between two ceramic sheets, and the lead is electrically connected to the heating resistor. Due to the limitation of the heating power, the heating area of ​​each heating sheet is small, and the heating area is concentrated in the middle of the ceramic heating sheet, which makes the volume of the ceramic heating sheet larger, but the heating area is smaller; and because it is concentrated in the middle of the ceramic heating sheet for a long time, the life of the ceramic heating sheet is further reduced. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a ceramic heating plate that generates heat evenly. The device generates heat evenly and has a fast heating speed, and is convenient for users to use.

[0005] The present invention is implemented as follows: a ceramic heating sheet for uniform heating comprises an upper ceramic sheet, a plurality of heating elements and a lower ceramic sheet; the plurality of heating elements are arranged between the upper ceramic sheet and the lower ceramic sheet;

[0006] A plurality of the heating elements are arranged in a matrix, and the inner spacing of the matrix is ​​larger than the outer spacing;

[0007] Each of the heating elements comprises a positive electrode, a first heating resistor, a second heating resistor and a negative electrode, the two ends of the first heating resistor are respectively connected to the positive electrode and the negative electrode, and the two ends of the second heating resistor are respectively connected to the positive electrode and the negative electrode;

[0008] The heating elements are connected in series or in parallel according to the set voltage and power.

[0009] Further, the first heating resistor includes a first arc-shaped resistor, a second arc-shaped resistor and a third arc-shaped resistor, one end of the first arc-shaped resistor, the second arc-shaped resistor and one end of the third arc-shaped resistor are connected in sequence, the other end of the first arc-shaped resistor is connected to the positive electrode, and the other end of the third arc-shaped resistor is connected to the negative electrode.

[0010] Furthermore, there is at least one second arc-shaped resistor.

[0011] Further, the second heating resistor includes a fourth arc resistor, a fifth arc resistor and a sixth arc resistor, one end of the fourth arc resistor, the fifth arc resistor and one end of the sixth arc resistor are connected in sequence, the other end of the fourth arc resistor is connected to the positive electrode, and the other end of the sixth arc resistor is connected to the negative electrode.

[0012] Furthermore, there is at least one fifth arc-shaped resistor.

[0013] Furthermore, the inner interval minus the adjacent outer interval is equal to 1 to 3 mm.

[0014] Furthermore, the upper ceramic sheet, the heating element and the lower ceramic sheet form a flat plate structure or a curved plate structure.

[0015] The advantages of the present invention are as follows: the present invention is a ceramic heating plate with uniform heating, which changes the wiring mode of the heating resistor so that the heating of the ceramic heating plate is uniform and not concentrated in the middle of the ceramic heating plate; furthermore, due to the uniform heating, the ceramic is not easily damaged, thereby increasing the service life of the ceramic heating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the matrix arrangement of the heating elements of a ceramic heating sheet for uniform heating according to the present invention.

[0018] Figure 2 It is a structural schematic diagram of a heating element of a ceramic heating sheet that generates heat uniformly according to the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of a ceramic heating sheet that generates heat evenly in the present invention. Figure 1 .

[0020] Figure 4 This is a schematic diagram of the structure of a ceramic heating sheet that generates heat evenly in the present invention. Figure 2 . DETAILED DESCRIPTION

[0021] See also Figures 1 to 4 As shown, the present invention is a ceramic heating sheet with uniform heat generation, comprising an upper ceramic sheet 1, a plurality of heating elements 2 and a lower ceramic sheet 3; the plurality of heating elements 2 are arranged between the upper ceramic sheet 1 and the lower ceramic sheet 3;

[0022] The plurality of heating elements 2 are arranged in a matrix, and the inner spacing of the matrix is ​​larger than the outer spacing;

[0023] Each of the heating elements 2 includes a positive electrode 21, a first heating resistor 22, a second heating resistor 23 and a negative electrode 24, wherein two ends of the first heating resistor 22 are connected to the positive electrode 21 and the negative electrode 24, respectively, and two ends of the second heating resistor 23 are connected to the positive electrode 21 and the negative electrode 24, respectively.

[0024] The heating element 2 is connected in series or in parallel according to the set voltage and power. For example, if the power of the heating element 2 is 5W and the voltage is 5V, the rated power of the ceramic heating plate is 100W and the rated voltage is 50V. Then 20 heating elements 2 are required. The 20 heating elements 2 are divided into two groups, and 10 heating elements 2 are connected in series and then in parallel.

[0025] A single heating element 2 is very small and generates heat very quickly, and can quickly reach the set temperature; through the coordination between multiple heating elements 2, the entire ceramic heating plate heats up quickly, and according to the above-mentioned matrix arrangement, the heat of the entire ceramic heating plate will not be concentrated in the middle, so that the entire ceramic heating plate can heat evenly.

[0026] In this embodiment, preferably, the first heating resistor 22 includes a first arc-shaped resistor 221, a second arc-shaped resistor 222 and a third arc-shaped resistor 223, one end of the first arc-shaped resistor, the second arc-shaped resistor and one end of the third arc-shaped resistor are connected in sequence, the other end of the first arc-shaped resistor is connected to the positive electrode, and the other end of the third arc-shaped resistor is connected to the negative electrode.

[0027] In this embodiment, preferably, there is at least one second arc-shaped resistor.

[0028] In this embodiment, preferably, the second heating resistor 23 includes a fourth arc resistor 231, a fifth arc resistor 232 and a sixth arc resistor 233, one end of the fourth arc resistor, the fifth arc resistor and one end of the sixth arc resistor are connected in sequence, the other end of the fourth arc resistor is connected to the positive electrode, and the other end of the sixth arc resistor is connected to the negative electrode.

[0029] In this embodiment, preferably, there is at least one fifth arc-shaped resistor.

[0030] In this embodiment, preferably, the inner interval minus the adjacent outer interval is equal to 1 to 3 mm.

[0031] like Figure 3 As shown, the upper ceramic sheet, the heating element and the lower ceramic sheet form a planar plate structure.

[0032] like Figure 4 As shown, the upper ceramic sheet, the heating element and the lower ceramic sheet form a curved plate-shaped structure.

[0033] A ceramic heating sheet with uniform heat generation, comprising a plurality of ceramic heating sheets 1 and a heat conducting sheet 2; the plurality of ceramic heating sheets 1 are arranged in a matrix and fixed to the heat conducting sheet 2;

[0034] The inner intervals L1 and L3 of the matrix arrangement are larger than the outer intervals L2 and L4, that is, L1>L2, L3>L4; it can also be set that the difference between L1 and L2 is 1mm, and the difference between L3 and L4 is 1mm; and so on;

[0035] The ceramic heating sheet 1 is connected in series or in parallel according to the set voltage and power; for example, the power of the ceramic heating sheet 1 is 5W and the voltage is 5V. If a power of 100W is required and the rated voltage is 50V, 20 ceramic heating sheets 1 are required. The 20 are divided into two groups, and 10 ceramic heating sheets 1 are connected in parallel and then in series.

[0036] When the ceramic heating sheet 1 is rectangular, the length and width are both less than or equal to 1 cm;

[0037] When the ceramic heating sheet 1 is circular, its diameter is less than or equal to 1 cm; the ceramic heating sheet 1 is small in size, so that the user has sufficient space when arranging it; and through the above-mentioned arrangement, when the heat conducting sheet 2 is heated, the heating temperature of each part is basically the same.

[0038] In this embodiment, preferably, a plurality of slots 21 are provided on the thermal conductive sheet 2, and the ceramic heating sheet 1 is provided in the slots 21, and the slots 21 correspond to the ceramic heating sheet 1 one by one; by nesting the ceramic heating sheet 1 in the slots 21, high-temperature resistant glue can be used to fix it, so that most of the heat of the ceramic heating sheet 1 is transferred to the thermal conductive sheet, so that the entire thermal conductive sheet 21 heats up quickly and meets the use requirements.

[0039] In this embodiment, preferably, Figure 3 and 4 As shown, the ceramic heating sheet 1 includes an upper ceramic sheet 11, a heating element 12 and a lower ceramic sheet 13; the upper ceramic sheet 11, the heating element 12 and the lower ceramic sheet 13 are connected in sequence; the heating element 12 includes a positive electrode 121, a first heating resistor 122, a second heating resistor 123 and a negative electrode 124, the first heating resistor 122 includes a first arc-shaped resistor 1221, a second arc-shaped resistor 1222 and a third arc-shaped resistor 1223, one end of the first arc-shaped resistor 1221, the second arc-shaped resistor 1222 and one end of the third arc-shaped resistor 1223 are connected in sequence, the other end of the first arc-shaped resistor 1221 is connected to the positive electrode 121, and the other end of the third arc-shaped resistor 1223 is connected to the negative electrode 124;

[0040] The second heating resistor 123 includes a fourth arc-shaped resistor 1231, a fifth arc-shaped resistor 1232 and a sixth arc-shaped resistor 1233. One end of the fourth arc-shaped resistor 1231, the fifth arc-shaped resistor 1232 and one end of the sixth arc-shaped resistor 1233 are connected in sequence, the other end of the fourth arc-shaped resistor 1232 is connected to the positive electrode 121, and the other end of the sixth arc-shaped resistor 1233 is connected to the negative electrode 124. Through the above-mentioned arrangement, the heating element 12 looks round and has three layers of heating, so that the ceramic heating plate 1 has high thermal efficiency, high heating temperature and rapid temperature rise.

[0041] In this embodiment, preferably, the heat conductive sheet 2 is an aluminum plate or a ceramic plate; the heat conductive sheet 2 can be fixed to the curling iron or the hair straightener to provide heat. Since the heat conductive sheet 2 heats up quickly and evenly, the effect of the curling iron or the hair straightener is greatly increased, which is convenient for users to use and reduces damage to the user's hair.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0043] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A ceramic heating sheet with uniform heating, characterized in that: It comprises an upper ceramic sheet, a plurality of heating elements and a lower ceramic sheet; the plurality of heating elements are arranged between the upper ceramic sheet and the lower ceramic sheet; A plurality of the heating elements are arranged in a matrix, and the inner spacing of the matrix is ​​larger than the outer spacing; Each of the heating elements comprises a positive electrode, a first heating resistor, a second heating resistor and a negative electrode, the two ends of the first heating resistor are respectively connected to the positive electrode and the negative electrode, and the two ends of the second heating resistor are respectively connected to the positive electrode and the negative electrode; The heating elements are connected in series or in parallel according to the set voltage and power.

2. A ceramic heating sheet for uniform heating as claimed in claim 1, characterized in that: The first heating resistor includes a first arc-shaped resistor, a second arc-shaped resistor and a third arc-shaped resistor. One end of the first arc-shaped resistor, the second arc-shaped resistor and one end of the third arc-shaped resistor are connected in sequence. The other end of the first arc-shaped resistor is connected to the positive electrode, and the other end of the third arc-shaped resistor is connected to the negative electrode.

3. A ceramic heating sheet for uniform heating as claimed in claim 2, characterized in that: The second arc-shaped resistor is at least one.

4. A ceramic heating sheet for uniform heating as claimed in claim 1, characterized in that: The second heating resistor includes a fourth arc resistor, a fifth arc resistor and a sixth arc resistor, one end of the fourth arc resistor, the fifth arc resistor and one end of the sixth arc resistor are connected in sequence, the other end of the fourth arc resistor is connected to the positive electrode, and the other end of the sixth arc resistor is connected to the negative electrode.

5. A ceramic heating sheet for uniform heating as claimed in claim 4, characterized in that: The fifth arc-shaped resistor is at least one.

6. A ceramic heating sheet for uniform heating as claimed in claim 1, characterized in that: The medial interval minus the adjacent lateral interval is equal to 1 to 3 mm.

7. A ceramic heating sheet for uniform heating as claimed in claim 1, characterized in that: The upper ceramic sheet, the heating element and the lower ceramic sheet form a flat plate structure or a curved plate structure.

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