Double-voltage heating body structure, heating module and instant heating equipment

Abstract

The utility model discloses a double-voltage heating body structure, a heating module and instant heating equipment. The double-voltage heating body structure comprises a base body, the surface of the base body is provided with a plurality of heating resistor circuits which are sequentially arranged side by side at intervals. A first electrode, a second electrode and a third electrode are further arranged on the surface of the base body; one end of the first electrode is electrically connected with one end of each side-by-side heating resistor circuit; a first connecting part extends from the other end of the first electrode; one end of the second electrode is electrically connected with the other ends of all the side-by-side heating resistor circuits; a second connecting part extends from the other end of the second electrode; the third electrode is located between the first electrode and the second electrode; one end of the third electrode is electrically connected with the plurality of heating resistor circuits in sequence along the arrangement direction of the heating resistor circuits; a third connecting part extends from the other end of the third electrode; under different voltages, one heating body can be combined with different resistor structures to provide a high-power heating effect, so that the utilization rate of the heating body is greatly improved, and the area and the cost are saved.

Description

Technical Field

[0001] This utility model relates to the field of instant heating technology, and in particular to a dual-voltage heating element structure, a heating module, and an instant heating device. Background Technology

[0002] To address different voltage usage scenarios, existing dual-voltage heating element structures typically employ two heating resistor circuits to provide high-power heating effects. These two heating resistor circuits are connected to different voltages, thus controlling the corresponding heating resistor circuit to operate based on the input voltage, while the other heating resistor circuit remains idle. This results in low utilization of the heating resistor circuits. Furthermore, the structure with two heating resistor circuits increases the area occupied by the heating resistor circuits, thereby increasing manufacturing costs. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a dual-voltage heating element structure, heating module, and instant heating device. It can use a single heating element with different resistance structures under different voltages to provide a high-power heating effect, greatly improving the utilization rate of the heating element, saving area and reducing costs.

[0004] To achieve the above objectives, the specific solution of this utility model is as follows:

[0005] The first aspect of this utility model provides a dual-voltage heating element structure, including a substrate; the surface of the substrate is provided with a plurality of sequentially spaced and parallel heating resistor lines; the surface of the substrate is also provided with a first electrode, a second electrode, and a third electrode; one end of the first electrode is electrically connected to one end of all the parallel heating resistor lines; the other end of the first electrode extends to have a first connecting portion; one end of the second electrode is electrically connected to the other end of all the parallel heating resistor lines; the other end of the second electrode extends to have a second connecting portion; the third electrode is located between the first electrode and the second electrode; one end of the third electrode is sequentially electrically connected to a plurality of heating resistor lines along the arrangement direction of the heating resistor lines; the other end of the third electrode extends to have a third connecting portion.

[0006] Optionally, the third electrode is electrically connected to all the parallel heating resistor lines.

[0007] Optionally, the third electrode is electrically connected to the center of each heating resistor circuit.

[0008] Optionally, the heating resistor circuit is a thick film resistor layer.

[0009] Optionally, the heating resistor circuit is sintered onto the substrate surface by screen printing.

[0010] Optionally, the substrate is plate-shaped or tubular.

[0011] Optionally, when the first voltage is applied, the first and second connecting parts are connected to the first voltage, while the third connecting part is left unconnected.

[0012] When the second voltage is applied and the second voltage is less than the first voltage, the first connecting part and the second connecting part are short-circuited and then connected to the third connecting part with the second voltage.

[0013] The second aspect of this utility model provides a heating module, including the dual-voltage heating element structure as described above.

[0014] The third aspect of this utility model is an instant heating device, which includes the heating module as described above.

[0015] The beneficial effects of this utility model are as follows: By setting up spaced and parallel heating resistor lines, and using a first electrode connected to one end of each heating resistor line, a second electrode connected to the other end of each heating resistor line, and a third electrode connected to each heating resistor line, this utility model can provide a high-power heating effect by using a single heating element with different resistor structures under different voltages, which greatly improves the utilization rate of the heating element, saves area and reduces costs. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram provided in Embodiment 1 of this utility model;

[0017] Figure 2 This is a structural schematic diagram provided in Embodiment 2 of this utility model;

[0018] Explanation of reference numerals in the attached drawings: 1. Substrate; 2. Heating resistor circuit; 3. First electrode; 31. First connecting part; 4. Second electrode; 41. Second connecting part; 5. Third electrode; 51. Third connecting part. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not to limit the scope of the present invention.

[0020] Example 1: As Figure 1As shown, the dual-voltage heating element structure described in this embodiment includes a substrate 1. The substrate 1 is made of a material with good thermal conductivity, such as ceramic or metal. The substrate 1 can be plate-shaped or tubular, depending on the actual application scenario. The surface of the substrate 1 is provided with a plurality of sequentially spaced parallel heating resistor lines 2. The number of heating resistor lines 2 can be set according to the needs of the actual application scenario. The surface of the substrate 1 is also provided with a first electrode 3, a second electrode 4, and a third electrode 5. One end of the first electrode 3 is electrically connected to one end of all the parallel heating resistor lines 2. The other end of the first electrode 3 extends with a first connecting portion 31. One end of the second electrode 4 is electrically connected to the other end of all the parallel heating resistor lines 2. The other end of the second electrode 4 extends with a second connecting portion 41. The third electrode 5 is located between the first electrode 3 and the second electrode 4. One end of the third electrode 5 is sequentially electrically connected to all the parallel heating resistor lines 2 along the arrangement direction of the heating resistor lines 2. The other end of the third electrode 5 extends with a third connecting portion 51. Preferably, the third electrode 5 is electrically connected to the center of each heating resistor line 2; of course, the third electrode 5 can also be set in other positions, which can be set according to the actual application needs.

[0021] This embodiment is explained with the third electrode 5 located at the center. Specifically, if the application scenario is a first voltage, the first voltage is connected to the first connection part 31 and the second connection part 41, and the third connection part 51 is left floating; at this time, each heating resistor line 2 is connected in parallel to form a first resistor R1 for heating; for example, assuming the number of heating resistor lines 2 is Y, the resistance of the heating resistor line 2 is a, and the voltage of the first voltage is VH, then the first resistance R1 = a / Y, and the heating power P1 = VH*VH*Y / a.

[0022] If the application scenario involves a second voltage, and this second voltage is less than the first voltage, then the first connecting part 31 and the second connecting part 41 are short-circuited and connected to the third connecting part 51 to the second voltage. At this time, each heating resistor line 2 is divided into two parts, and these two parts are connected in parallel to form a second resistor R2 for heating. For example, assuming the number of heating resistor lines 2 is Y, the resistance of each heating resistor line 2 is a, and the second voltage is VL, then the second resistance R2 = a / 4Y, and the heating power P2 = 4*VL*VL*Y / a. This allows for high-power heating even under two different voltage conditions.

[0023] For example, in a scenario where the first voltage is twice the second voltage, such as when the first voltage is 220V and the second voltage is 110V; or when the first voltage is 24V and the second voltage is 12V, the power consumption, power density, and utilization rate are the same under both scenarios.

[0024] This embodiment sets up spaced parallel heating resistor lines 2, and connects the first electrode 3 to one end of each heating resistor line 2, the second electrode 4 to the other end of each heating resistor line 2, and the third electrode 5 to each heating resistor line 2. This allows for the use of a single heating element with different resistor structures to provide high-power heating under different voltages, greatly improving the utilization rate of the heating element, saving area and reducing costs.

[0025] In the dual-voltage heating element structure described in this embodiment, the heating resistor circuit 2 is a thick-film resistor layer. This configuration makes the structure more reliable and more stable.

[0026] The dual-voltage heating element structure described in this embodiment has a more reliable structure and better stability, as the heating resistor circuit 2 is sintered onto the substrate surface by screen printing.

[0027] Example 2: Figure 2 As shown, the dual-voltage heating element structure of this embodiment includes a substrate 1. The substrate 1 is made of a material with good thermal conductivity, such as ceramic or metal. The substrate 1 can be plate-shaped or tubular, depending on the actual application scenario. The surface of the substrate 1 is provided with a plurality of sequentially spaced parallel heating resistor lines 2. The number of heating resistor lines 2 can be set according to the needs of the actual application scenario. The surface of the substrate 1 is also provided with a first electrode 3, a second electrode 4, and a third electrode 5. One end of the first electrode 3 is electrically connected to one end of all the parallel heating resistor lines 2. The other end of the first electrode 3 extends to a first connecting portion 31. One end of the second electrode 4 is electrically connected to the other end of all the parallel heating resistor lines 2. The other end of the second electrode 4 extends to a second connecting portion 41. The third electrode 5 is located between the first electrode 3 and the second electrode 4. One end of the third electrode 5 is sequentially electrically connected to a portion of the parallel heating resistor lines 2 along the arrangement direction of the heating resistor lines 2. The other end of the third electrode 5 extends to a third connecting portion 51. The number of heating resistor lines 2 connected to the third electrode 5 can be set according to the needs of the actual application scenario. Preferably, the third electrode 5 is electrically connected to the center of each heating resistor line 2; of course, the third electrode 5 can also be set in other positions, which can be set according to the actual application needs.

[0028] This embodiment is explained with the third electrode 5 located at the center. In practical applications, if the number of heating resistor lines 2 is Y, then the number of heating resistor lines 2 connected to the third electrode 5 is X, where X < Y. If the application scenario is a first voltage, then the first voltage is connected to the first connection part 31 and the second connection part 41, and the third connection part 51 is left floating. At this time, each heating resistor line 2 is connected in parallel to form a third resistor R3 for heating. The first voltage can be set to 220V, 24V, etc. For example, assuming the resistance of the heating resistor line 2 is a and the first voltage is VH, then the third resistance R3 = a / Y, and the heating power P3 = VH*VH*Y / a.

[0029] If the application scenario involves a second voltage that is lower than the first voltage, then the first connecting part 31 and the second connecting part 41 are short-circuited and connected to the third connecting part 51 to the second voltage. At this time, the X heating resistor lines 2 are each divided into two parts, and the two parts are connected in parallel to form a fourth resistor R4 for heating. The heating resistor lines 2 not connected to the third connecting part 51 are not working, and the number of these is YX. Thus, the values ​​of X and Y can be adjusted according to the required heating power. The second voltage can be set to 110V, 12V, etc. For example, assuming the resistance of the heating resistor line 2 is a and the second voltage is VL, then the fourth resistor R4 = a / 4X, and the heating power P4 = 4*VL*VL*X / a. This allows for high-power heating even under two different voltage conditions.

[0030] This embodiment sets up spaced parallel heating resistor lines 2, and connects the first electrode 3 to one end of each heating resistor line 2, the second electrode 4 to the other end of each heating resistor line 2, and the third electrode 5 to each heating resistor line 2. This allows a single heating element to provide high-power heating under different voltages, greatly improving the utilization rate of the heating element, saving area and reducing costs.

[0031] In the dual-voltage heating element structure described in this embodiment, the heating resistor circuit 2 is a thick-film resistor layer. This configuration makes the structure more reliable and more stable.

[0032] The dual-voltage heating element structure described in this embodiment has a more reliable structure and better stability, as the heating resistor circuit 2 is sintered onto the substrate surface by screen printing.

[0033] This utility model embodiment also provides a heating module, including a dual-voltage heating element structure as described in any of the above embodiments. The heating module of this embodiment, by employing the aforementioned dual-voltage heating element structure, possesses all the beneficial effects of the aforementioned dual-voltage heating element structure, which will not be elaborated further here.

[0034] This utility model also provides an instant heating device, including the heating module as described above. The instant heating device of this embodiment, due to the use of the aforementioned heating module, possesses all the beneficial effects of the aforementioned heating module, which will not be elaborated further here.

[0035] The above description is only a preferred embodiment of the present utility model. Therefore, any equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included within the protection scope of the present utility model patent application.

Claims

1. A dual-voltage heating element structure, characterized in that, The device includes a substrate; the surface of the substrate is provided with a plurality of sequentially spaced and parallel heating resistor lines; the surface of the substrate is also provided with a first electrode, a second electrode, and a third electrode; one end of the first electrode is electrically connected to one end of all the parallel heating resistor lines; the other end of the first electrode extends to have a first connecting portion; one end of the second electrode is electrically connected to the other end of all the parallel heating resistor lines; the other end of the second electrode extends to have a second connecting portion; the third electrode is located between the first electrode and the second electrode. One end of the third electrode is electrically connected to multiple heating resistor lines in sequence along the arrangement direction of the heating resistor lines; the other end of the third electrode extends to have a third connecting part.

2. The dual-voltage heating element structure according to claim 1, characterized in that, The third electrode is electrically connected to all the parallel heating resistor lines.

3. A dual-voltage heating element structure according to claim 1 or 2, characterized in that, The third electrode is electrically connected to the center of each heating resistor circuit.

4. The dual-voltage heating element structure according to claim 1, characterized in that, The heating resistor circuit is a thick film resistor layer.

5. The dual-voltage heating element structure according to claim 1, characterized in that, The heating resistor circuit is sintered onto the substrate surface by screen printing.

6. The dual-voltage heating element structure according to claim 1, characterized in that, The substrate is plate-shaped or tubular.

7. The dual-voltage heating element structure according to claim 1, characterized in that, When the first voltage is applied, the first and second connecting parts are connected to the first voltage, while the third connecting part is left unconnected. When the second voltage is applied and the second voltage is less than the first voltage, the first connecting part and the second connecting part are short-circuited and then connected to the third connecting part with the second voltage.

8. A heating module, characterized in that, Includes the dual-voltage heating element structure as described in any one of claims 1 to 7.

9. An instant heating device, characterized in that, Includes the heating module as described in claim 8.

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