CN211831210U - From heat-generating body of preventing dry combustion method function in area - Google Patents

From heat-generating body of preventing dry combustion method function in area Download PDF

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Publication number
CN211831210U
CN211831210U CN202020836675.0U CN202020836675U CN211831210U CN 211831210 U CN211831210 U CN 211831210U CN 202020836675 U CN202020836675 U CN 202020836675U CN 211831210 U CN211831210 U CN 211831210U
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China
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circuit
heating
dielectric layer
welding point
detection
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CN202020836675.0U
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Chinese (zh)
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杨睿达
朱攀飞
王清利
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Xinxiang Jieda Precision Electronics Co ltd
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Xinxiang Jieda Precision Electronics Co ltd
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Abstract

The utility model discloses a heat-generating body from area dry combustion method function, which comprises a base bod, set up dielectric layer on the base member and set up heating circuit and detection circuitry on the dielectric layer, wherein the welding point on heating circuit is connected through power output end in circuit and the circuit board power line module respectively, be used for providing stable power for heating circuit, the welding point of detection circuitry passes through the circuit and is connected with signal detection circuitry module in the circuit board, be used for through measuring the leakage current between detection circuitry and the heating circuit when the local overheated dielectric characteristic of dielectric layer changes, whether dry combustion method is judged to the heat-generating body through resistance or capacitance value change. The utility model discloses well heating line designs on the insulating layer with the integrated an organic whole of detection circuitry, simple structure, convenient production.

Description

From heat-generating body of preventing dry combustion method function in area
Technical Field
The utility model belongs to the technical field of the heat-generating body, concretely relates to heat-generating body from area dry combustion method function of preventing.
Background
Heating electrical apparatus such as electric water heater has now been widely used in the family, and this kind of heating electrical apparatus that heats rivers mainly through the heat-generating body that sets up in the heating chamber of electrical apparatus to rivers heat, and the heat-generating body need keep heating rivers constantly under operating condition just can not damage, but in the real use, bubble or unexpected lack of water can appear in heating the intracavity in inevitable, and the heat-generating body then can take place to dry and burn and damage this moment. Various heating elements on the market at present have the risk of heating and dry-heating, and in order to prevent the dry-heating from directly or indirectly installing an anti-dry-heating element on a heating appliance, the common method is to directly detect the surface temperature of the heating element and feed the surface temperature back to a circuit board to judge whether the heating element is dry-heated. The method has the disadvantages that the local temperature of the heating element can be detected only, and if the dry-burning position is far away from the temperature sensing element, the temperature can not be timely transmitted to the temperature sensing element, so that the heating element can not be well protected.
Disclosure of Invention
The utility model provides a technical problem provide a simple structure and convenient production prevent heat-generating body of dry combustion method function from area.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme, a heat-generating body from area dry combustion method function, a serial communication port includes the base member, set up the dielectric layer on the base member and set up heating circuit and detection circuitry on the dielectric layer, wherein the welding point of heating circuit is connected through power output end in circuit and the power line module on the circuit board respectively, a power supply for providing stable power for heating circuit, the welding point of detection circuitry passes through the circuit and is connected with signal detection circuitry module intermediate signal detection end on the circuit board, a leakage current through measuring between detection circuitry and the heating circuit when the local overheated dielectric characteristic of dielectric layer changes, resistance or capacitance value change judge whether the heat-generating body burns futilely.
Further, the heating substrate is a metal or nonmetal heating substrate with a flat plate structure or a tubular structure, and the dielectric layer is a dielectric enamel layer.
Further, the heating circuit and the detection circuit are both printed on the dielectric layer, wherein the detection circuit is at least one segment, and one end of the detection circuit is electrically connected with the detection welding point on the dielectric layer.
And further limiting, the heating circuit on the dielectric layer is at least one section, the heating circuit is spiral, rectangular, circular or arc-shaped, when the heating circuit is one section, two ends of the heating circuit are respectively and electrically connected with the live wire welding point and the zero line welding point on the dielectric layer, when the heating circuit is two or more sections, one end of the heating circuit is electrically connected with the zero line welding point on the dielectric layer, and the other end of the heating circuit is respectively and electrically connected with the live wire welding point on the dielectric layer.
The matrix is a flat substrate, a dielectric layer is arranged on the flat substrate, at least one section of spiral heating circuit is printed on the dielectric layer, two ends of the spiral heating circuit are respectively and electrically connected with a live wire welding point and a zero wire welding point on the dielectric layer, the live wire welding point and the zero wire welding point are respectively connected with a power output end in a power circuit module on a circuit board through circuits, a spiral detection circuit consistent with a printing track of the spiral heating circuit is arranged on the dielectric layer on one side of the spiral heating circuit, one end of the spiral detection circuit is electrically connected with a detection welding point on the dielectric layer, and the detection welding point is connected with a signal detection end in a signal detection circuit module on the circuit board through the circuits.
The base body is a flat substrate, a dielectric layer is arranged on the flat substrate, at least one section of rectangular heating circuit is printed on the dielectric layer, one end of each section of rectangular heating circuit is electrically connected with a zero line welding point on the dielectric layer, the other end of each section of rectangular heating circuit is electrically connected with a live line welding point on the dielectric layer, and the live line welding point and the zero line welding point are respectively connected with a power output end in a power circuit module on the circuit board through circuits; and a detection circuit is arranged on the dielectric layer at the periphery of each section of rectangular heating circuit, one end of the detection circuit is electrically connected with a detection welding point on the dielectric layer, and the detection welding point is connected with a signal detection end in a signal detection circuit module on the circuit board through a circuit.
Further inject, the base member is the tubulose substrate, is equipped with the dielectric layer on this tubulose substrate, the printing has one section at least arc heating circuit on the dielectric layer, this arc heating circuit's both ends respectively with live wire welding point and zero line welding point electric connection on the dielectric layer, live wire welding point and zero line welding point are connected through power output end in circuit and the power circuit module on the circuit board respectively, be equipped with the detection circuitry on the peripheral dielectric layer of arc heating circuit, the one end of this detection circuitry and the detection welding point electric connection on the dielectric layer, the detection welding point passes through the circuit and is connected with the signal detection end in the signal detection circuit module on the circuit board.
Compared with the prior art, the utility model following beneficial effect has: the heating circuit and the detection circuit are integrated and designed on the insulating layer, the structure is simple, and the production is convenient; the utility model discloses make things convenient for the installation of heat-generating body, can reduce the welding point at the heat-generating body, do not have special requirement to the detection circuitry simultaneously, choose the conventional conducting wire that has conductive function for use, make the work of detection circuitry more stable; the utility model discloses an at least one detection circuitry of printing on the dielectric layer, through measuring the detection circuitry and the leakage current between the circuit that generates heat, resistance or capacitance value change can the quick accurate judgement heat-generating body dry combustion method, and then stop to heat the heat-generating body through the power cut-off in order to carry out effective protection to the heat-generating body.
Drawings
FIG. 1 is a schematic view showing a structure of a flat plate heat-generating body having a spiral heat-generating line;
FIG. 2 is a schematic view showing a structure of a flat plate heat-generating body having a square heat-generating line;
FIG. 3 is a schematic view of the structure of a tubular heat-generating body having a circular heat-generating line;
fig. 4 is a working principle diagram of the present invention.
In the figure: 1-substrate, 2-dielectric layer, 3-heating circuit, 4-detection circuit, 5-heating wire welding point, 6-zero line welding point and 7-detection welding point.
Detailed Description
Combine the technical scheme of the utility model, a heat-generating body of dry combustion method function is prevented from area, including base member 1, set up dielectric layer 2 on base member 1 and set up heating circuit 3 and detection circuitry 4 on dielectric layer 2, wherein heating circuit 3's welding point is connected through power output end in circuit and the power supply line module on the circuit board respectively, be used for providing stable power for heating circuit 3, detection circuitry 4's welding point passes through the circuit and is connected with signal detection circuitry module in the circuit board, be used for through measuring the leakage current between detection circuitry 4 and the heating circuit 3 when dielectric layer local overheat takes place the dielectric characteristic change, whether resistance or capacitance value change judge the heat-generating body dry combustion method.
The heating base body 1 of the utility model is a metal or nonmetal heating base body with a flat plate structure or a tubular structure, and the dielectric layer 2 is a dielectric enamel layer; the heating circuit 3 and the detection circuit 4 are both printed on the dielectric layer 2, wherein the detection circuit 4 is at least one section, one end of the detection circuit is electrically connected with the detection welding point 4 on the dielectric layer 2, and the detection circuit 4 and the heating circuit 3 are arranged in parallel; the heating circuit 3 on the dielectric layer 2 is at least one section, the heating circuit 3 is spiral, rectangular, circular or arc, when the heating circuit 3 is one section, two ends of the heating circuit 3 are respectively electrically connected with the live wire welding point 5 and the zero line welding point 6 on the dielectric layer, when the heating circuit 3 is two or more sections, one end of the heating circuit 3 is electrically connected with the common zero line welding point 6 on the dielectric layer, and the other end of the heating circuit 3 is respectively electrically connected with the live wire welding point 5 on the dielectric layer 2.
Example 1
As shown in fig. 1, the base body in the heating element with the dry-heating prevention function is a flat substrate, a dielectric layer is arranged on the flat substrate, a spiral heating circuit is printed on the dielectric layer, two ends of the spiral heating circuit are electrically connected with a fire wire welding point and a zero line welding point on the dielectric layer respectively, the fire wire welding point and the zero line welding point are connected with a power output end in a power circuit module on a circuit board through circuits respectively, a spiral detection circuit consistent with a printing track of the spiral heating circuit is arranged on the dielectric layer on one side of the spiral heating circuit, one end of the spiral detection circuit is electrically connected with a detection welding point on the dielectric layer, and the detection welding point is connected with a signal detection end in a signal detection circuit module on the circuit board through the.
Example 2
As shown in fig. 2, the base body in the heating element with the dry-heating prevention function is a flat substrate, a dielectric layer is arranged on the flat substrate, two sections of rectangular heating circuits are printed on the dielectric layer, one ends of the upper section of rectangular heating circuit and the lower section of rectangular heating circuit are electrically connected with a common zero line welding point on the dielectric layer, the other ends of the upper section of rectangular heating circuit and the lower section of rectangular heating circuit are respectively electrically connected with a fire line welding point on the dielectric layer, and the fire line welding point and the zero line welding point are respectively connected with a power output end in a power line module on the circuit board through lines; two sections of detection circuits are arranged on the dielectric layers on the peripheries of the upper section rectangular heating circuit and the lower section rectangular heating circuit, one ends of the two sections of detection circuits are electrically connected with the common detection welding point on the dielectric layers, and the detection welding point is connected with the signal detection end in the signal detection circuit module on the circuit board through the circuit.
Example 3
As shown in fig. 3, the base body in the heating element with the dry-heating prevention function is a tubular base material, a dielectric layer is arranged on the tubular base material, a section of arc-shaped heating circuit is printed on the dielectric layer, two ends of the arc-shaped heating circuit are electrically connected with a fire wire welding point and a zero line welding point on the dielectric layer respectively, the fire wire welding point and the zero line welding point are connected with a power output end in a power circuit module on the circuit board through circuits respectively, two sections of detection circuits are arranged on the dielectric layers on the peripheries of the upper arc-shaped heating circuit and the lower arc-shaped heating circuit, one end of the two sections of detection circuits are electrically connected with a common detection welding point on the dielectric layer, and the detection welding point is connected with a signal.
The utility model discloses a concrete testing process does: when the heat-generating body was used normally, under the circumstances that does not have local overheat, the dielectric property on dielectric enamel layer was invariable, when the local overheated circumstances appeared in the heat-generating body, local overheat department can lead to dielectric enamel layer local temperature too high, and then lead to dielectric enamel layer dielectric property to change, through measuring the leakage current between detection circuitry and the circuit that generates heat when dielectric enamel layer local overheat took place the dielectric property change, whether dry combustion method is judged to the heat-generating body to the resistance or capacitance value change, and then stop heating the heat-generating body through cutting off the power in order to carry out effective protection to the heat-generating body.
The foregoing shows and describes the general principles of the present invention, with its principal features and advantages, and further, various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. The heating body with the dry burning prevention function is characterized by comprising a base body, a dielectric layer arranged on the base body, a heating circuit and a detection circuit, wherein the heating circuit and the detection circuit are arranged on the dielectric layer, welding points of the heating circuit are respectively connected with a power output end in a power circuit module on a circuit board through circuits and used for providing stable power for the heating circuit, the welding points of the detection circuit are connected with a signal detection end in a signal detection circuit module on the circuit board through the circuits and used for judging whether the heating body is dried burning or not by measuring leakage current, resistance or capacitance value change between the detection circuit and the heating circuit when the dielectric property is changed due to local overheating of the dielectric layer.
2. A heating element having a dry heating preventing function according to claim 1, further comprising: the substrate is a metal or nonmetal heating substrate with a flat plate structure or a tubular structure, and the dielectric layer is a dielectric enamel layer.
3. A heating element having a dry heating preventing function according to claim 1, further comprising: the heating circuit and the detection circuit are both printed on the dielectric layer, wherein the detection circuit is at least one section, and one end of the detection circuit is electrically connected with the detection welding point on the dielectric layer.
4. A heating element having a dry heating preventing function according to claim 1, further comprising: the heating circuit on the dielectric layer is at least one section, the heating circuit is spiral, rectangular, circular or arc, when the heating circuit is one section, two ends of the heating circuit are respectively electrically connected with the live wire welding point and the zero line welding point on the dielectric layer, when the heating circuit is two or more sections, one end of the heating circuit is electrically connected with the zero line welding point on the dielectric layer, and the other end of the heating circuit is respectively electrically connected with the live wire welding point on the dielectric layer.
5. A heating element having a dry heating preventing function according to claim 1, further comprising: the base member is dull and stereotyped substrate, be equipped with the dielectric layer on this dull and stereotyped substrate, the printing has one section spiral heating circuit on the dielectric layer, the both ends of this spiral heating circuit respectively with live wire welding point and zero line welding point electric connection on the dielectric layer, live wire welding point and zero line welding point are connected through power output end in circuit and the power circuit module on the circuit board respectively, be equipped with the spiral detection circuitry unanimous with spiral heating circuit printing track on the dielectric layer of spiral heating circuit one side, the one end of this spiral detection circuitry and the detection welding point electric connection on the dielectric layer, it is connected through signal detection end in signal detection circuitry module on circuit and the circuit board to detect the welding point.
6. A heating element having a dry heating preventing function according to claim 1, further comprising: the base body is a flat substrate, a dielectric layer is arranged on the flat substrate, at least one section of rectangular heating circuit is printed on the dielectric layer, one end of each section of rectangular heating circuit is electrically connected with a zero line welding point, the other end of each section of rectangular heating circuit is electrically connected with a live line welding point on the dielectric layer, and the live line welding point and the zero line welding point are respectively connected with a power output end in a power line module on a circuit board through circuits; two sections of detection circuits are arranged on the dielectric layers on the peripheries of the upper section rectangular heating circuit and the lower section rectangular heating circuit, one ends of the two sections of detection circuits are electrically connected with detection welding points on the dielectric layers, and the detection welding points are connected with signal detection ends in signal detection circuit modules on the circuit board through circuits.
7. A heating element having a dry heating preventing function according to claim 1, further comprising: the base member is the tubulose substrate, be equipped with the dielectric layer on this tubulose substrate, the printing has one section at least arc heating line on the dielectric layer, this arc heating line's both ends respectively with live wire welding point and zero line welding point electric connection on the dielectric layer, live wire welding point and zero line welding point are connected through power output end in circuit and the power circuit module on the circuit board respectively, be equipped with one section at least detection circuitry on the peripheral dielectric layer of upside arc heating line and downside arc heating line, the one end of this every section detection circuitry and the detection welding point electric connection on the dielectric layer, it is connected through signal detection end in signal detection circuitry module on circuit and the circuit board to detect the welding point.
CN202020836675.0U 2020-05-19 2020-05-19 From heat-generating body of preventing dry combustion method function in area Active CN211831210U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114080069A (en) * 2021-08-19 2022-02-22 东莞和馨嘉电子科技有限公司 Heating module with dry burning delaying function and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114080069A (en) * 2021-08-19 2022-02-22 东莞和馨嘉电子科技有限公司 Heating module with dry burning delaying function and manufacturing method thereof

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Address after: No. 7 Xinru Street, Hongqi District, Xinxiang City, Henan Province, 453000, No. 18 Xindong Industrial Park, Liandong U Valley, Xinxiang, Henan Province

Patentee after: XINXIANG JIEDA PRECISION ELECTRONICS CO.,LTD.

Country or region after: China

Address before: 453000 torch Park, 1789 High-tech Zone, Xinfei Avenue, Xinxiang, Henan

Patentee before: XINXIANG JIEDA PRECISION ELECTRONICS CO.,LTD.

Country or region before: China