CN212393015U - Electric heating pad - Google Patents
Electric heating pad Download PDFInfo
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- CN212393015U CN212393015U CN202021287980.5U CN202021287980U CN212393015U CN 212393015 U CN212393015 U CN 212393015U CN 202021287980 U CN202021287980 U CN 202021287980U CN 212393015 U CN212393015 U CN 212393015U
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Abstract
The utility model discloses an electric heating pad, which comprises an electric heating pad main body, a power line and a temperature controller, wherein the electric heating pad main body comprises an insulating surface layer, a heating body, a temperature sensing body and an insulating bottom layer; the temperature sensing body is used for sensing the temperature of the electric heating pad main body and generating a corresponding temperature signal, the temperature controller is electrically connected with the temperature sensing body and controls the working power of the heating body according to the temperature signal of the self temperature sensing body, and the temperature controller is electrically connected with the heating body. The utility model discloses an electric heat pad has the temperature sensing body, and when the flexible heat-generating body high temperature or reached and predetermine the temperature, this electric heat pad can reduce the power that generates heat, avoids appearing the electric heat pad overheated and arouse the incident.
Description
Technical Field
The utility model belongs to the technical field of the electric heater, especially, electric heat pad.
Background
In winter, electric appliances for heating become important tools for cold resistance and warm keeping of people. Such as hand warmers, hand warmer stickers, electric blankets, electric pads for warming hands on a table, and the like. In the prior art, the electric heating pad for warming the table top hands is disclosed as the Chinese patent authorization publication number: the structure of the flexible electric heating table mat composite structure disclosed in CN203934958U comprises a flexible electric heating table mat main body, wherein the flexible electric heating table mat main body comprises a heat insulation bottom mat, double-sided adhesive paper, a flexible heating film, a heat insulation surface skin and a power switch seat; the heat insulation bottom pad and the flexible heating film are compounded through double-sided adhesive tape, the flexible heating film and the heat insulation surface are also compounded through the double-sided adhesive tape, the power switch seat is positioned at one corner of the flexible electric heating table pad main body, and the power line is connected with the power switch seat. However, the flexible electric heating table mat in the prior art cannot accurately control the temperature, and heat is easily collected in the table mat under the condition that the electric heating mat is covered or insulated, so that the table mat is overheated, even a fire disaster and the like are caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an electric heating pad, this electric heating pad have the temperature sensing body, when the heat-generating body high temperature or reach and predetermine the temperature, this electric heating pad can reduce heating power or stop heating to avoid appearing the electric heating pad overheated and arouse the incident.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides an electric pad, includes electric pad main part and power cord, characterized by: the electric heating pad comprises an electric heating pad main body and a heating element, wherein the electric heating pad main body comprises an insulating surface layer, a heating element, a temperature sensing body and an insulating bottom layer; the temperature sensing body is used for sensing the temperature of the electric heating pad main body and generating a corresponding temperature signal, the temperature controller is electrically connected with the temperature sensing body and controls the working power of the heating body according to the temperature signal from the temperature sensing body, and the temperature controller is electrically connected with the heating body.
In the structure, the heating body and the temperature sensing body are electrically connected with the temperature controller, the temperature controller can identify the temperature signal transmitted by the temperature sensing body and judge and process the temperature signal according to the temperature signal, so that the heating power of the heating body is controlled, and the phenomenon that the temperature of the electric heating pad is too high and accidents happen is avoided.
Furthermore, the heating body is made of flexible heating materials. The flexible heating material can improve the flexibility of the electric heating pad, so that the electric heating pad is suitable for different use scenes and improves the application range.
More preferably, the heat generating element is a flexible heat generating film.
Furthermore, the temperature sensing body is made of flexible temperature sensing materials. The flexible temperature sensing material can be matched with the flexible heating film, so that the electric heating pad main body can be freely bent and has flexible performance.
More preferably, the temperature sensing body is a thermistor wire, a thermistor chip, a thermistor probe, a conductive coating or plating with a thermosensitive effect, a temperature limiter, or a temperature fuse. The components and parts corresponding to the temperature sensing body can monitor the temperature of the heating body or the current environment and transmit the temperature to the temperature controller in time, so that a basis is provided for the temperature controller to control the working power of the heating body. The temperature sensing layer can be formed by splicing thermistor sheets or uniformly distributing a plurality of thermistor probes, or can be formed by adopting a coating or plating form, or temperature measuring components such as a temperature limiter or a temperature fuse and the like.
The electric heating pad also comprises an indicator light which is electrically connected with the main control module and is controlled by the main control module. The indicator light can display the current gear and the current function state.
Furthermore, the heating element and the temperature sensing body are positioned between the insulating surface layer and the insulating bottom layer, and the temperature sensing body is tightly attached to the heating element. In the structure, the temperature sensing body is arranged on one side closer to the heating body or one side closer to the use, so that the temperature control precision is facilitated, and the heating temperature is more adaptive to the body sensing temperature of a user.
Further, the temperature controller is a single chip microcomputer. Wherein, the singlechip includes: the power supply module is used for providing electric energy control for the temperature sensing body and the heating body; the switch module is used for controlling power on and power off; the temperature acquisition module is electrically connected with the temperature sensing body and used for receiving a temperature signal from the temperature sensing body; the heating control module is electrically connected with the heating body and is used for controlling the working power of the heating body; and the main control module is used for controlling the work of the power supply module, the switch module, the temperature acquisition module and the heating control module.
The present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a circuit block diagram of an embodiment of the present invention;
FIG. 3 is a block diagram of a single chip microcomputer according to an embodiment of the present invention;
FIG. 4 is a circuit diagram of a power module according to an embodiment of the present invention;
FIG. 5 is a circuit diagram of a switch module according to an embodiment of the present invention;
FIG. 6 is a circuit diagram of a main control module according to an embodiment of the present invention;
FIG. 7 is a circuit diagram of an exemplary embodiment of the present invention;
FIG. 8 is a circuit diagram of a temperature acquisition module according to an embodiment of the present invention;
fig. 9 is a circuit diagram of a heating control module according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1-9, the specific embodiment of the present invention is an electric pad, which comprises an electric pad main body and a power line, wherein the electric pad main body comprises an insulating surface layer 1, a heating element 3, a temperature sensing body 2 and an insulating bottom layer 4, a temperature controller 5 is further installed at the edge of the electric pad main body, and the heating element 3 and the temperature sensing body 2 are respectively connected to the temperature controller 5 through wires. Heat-generating body 3 and temperature sensing body 2 are located between insulating top layer 1 and insulating bottom 4, and temperature sensing body 2 is located between insulating top layer 1 and heat-generating body 3, and with temperature sensing body 2 setting in the one side that is closer to heat-generating body 3 place, perhaps be closer to the one side of using, help accurate accuse temperature for heating temperature more adapts to user's body sensing temperature.
The temperature controller 5 is a single chip microcomputer 61, and a common 51 single chip microcomputer can be applied to the present embodiment, and in the present embodiment, AT89 series available from ATMEL corporation can be selected. The series of single-chip microcomputers 61 are provided with a plurality of modules, wherein the modules comprise a power supply module 621 used for providing electric energy control for the temperature-sensing body 2 and the heating body 3; a switch module 681 connected to the switch 8 and configured to control power on and off, especially to control on and off of the electric pad and a heating switching gear; the temperature acquisition module 621 is electrically connected with the temperature sensing body 2 and used for receiving a temperature signal, and is used for monitoring the temperature change of the heating body 3 in real time to prevent the electric heating pad from being overheated; the heating control module 631, which is electrically connected to the heating element 3 and is configured to control the working power of the heating element 3, may control the working power of the heating element 3 and adjust the temperature after receiving the signal of the main control module 611; the indicator light module 671 is used for controlling the indicator light 7, and after receiving the signal of the main control module 611, the indicator light module 671 can display the current heating gear and the current function state; and a main control module for controlling the power module 621, the switch module 681, the temperature acquisition module 621 and the heating control module 631 to operate. Specific circuit diagrams are shown in fig. 2-8.
The insulating surface layer can be made of PVC or PU materials, the surface layer can be printed and embossed with designed lines, the materials are soft and can be folded and wound, and a space for installing a temperature controller or a power switch seat (the temperature controller can be installed in the power switch seat) is reserved at a corner or an edge position. The temperature sensing body 2 comprises a temperature sensing layer made of thermal sensitive materials, wherein the thermal sensitive materials comprise a thermal sensitive resistance wire, a thermal sensitive resistance sheet, a thermal sensitive resistance probe, a conductive coating or a coating with thermal sensitive effect, a temperature limiter and a temperature fuse. Specifically, the temperature sensing body can be formed by weaving thermistor wires and thermistor wires to form a temperature sensing layer, also can be formed by splicing thermistor pieces or uniformly distributing a plurality of thermistor probes, also can be formed by adopting a coating or plating form to form the temperature sensing layer, or adopts temperature measuring components such as a temperature limiter or a temperature fuse and the like. The heating body 3 is a flexible heating body, the heating body 3 can adopt a PVC or PET resistance film, and one side of the film is provided with a wiring terminal to be conveniently connected with a temperature controller or a power switch seat. The insulating surface layer 1, the temperature-sensing body 2, the heating body 3 and the insulating bottom layer 4 can be bonded by adopting a sizing material, and the whole flexible electric heating pad is formed by rolling and compounding.
The specific temperature control principle process of the electric heating pad of the utility model is as follows: firstly, the switch base is plugged, the product is powered on, the product starts to work, the power module 621 controls the heating control module 631, the main control module 611 and the temperature acquisition module 621 to supply power, the heating control module 631 heats the heating body 3 in real time, the temperature sensing body 2 monitors the temperature of the heating body 3 and transmits the temperature to the main control module 611, the main control module 611 receives the signal and feeds back the signal to control the heating control module 631 to heat up or cool down to realize temperature adjustment, and the current gear is displayed through the indicator light 7. The modules described in this paragraph are module circuits commonly used in the art, as shown in fig. 2 to 8, and are conventional to those skilled in the art, and although the embodiments are illustrated by the drawings, the form of the temperature controller in this patent is not limited to the module form illustrated in the embodiments, and other circuits, programs, or modules capable of controlling and sensing the heating element and the temperature sensing element may also be adopted.
The utility model provides an electric pad main part can freely bend, and flexible heat-generating body and flexible temperature sensing body are connected with 5 electricity of temperature controller, and the signal of the transmission of flexible temperature sensing body can be discerned to temperature controller to the realization is to the control of flexible heat-generating body heating power, avoids flexible electric pad high temperature, the condition of meeting accident.
The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.
Claims (9)
1. The utility model provides an electric pad, includes electric pad main part and power cord, characterized by: the electric heating pad comprises an electric heating pad main body and a heating element, wherein the electric heating pad main body comprises an insulating surface layer, a heating element, a temperature sensing body and an insulating bottom layer;
the temperature sensing body is used for sensing the temperature of the electric heating pad main body and generating a corresponding temperature signal, the temperature controller is electrically connected with the temperature sensing body and controls the working power of the heating body according to the temperature signal from the temperature sensing body, and the temperature controller is electrically connected with the heating body.
2. The electric mat of claim 1, wherein: the heating body is made of flexible heating materials.
3. The electric mat of claim 1, wherein: the heating body is a flexible heating film.
4. The electric mat of claim 1, wherein: the temperature sensing body is made of flexible temperature sensing materials.
5. The electric mat of claim 1, wherein: the temperature sensing body is a thermistor wire, a thermistor sheet, a thermistor probe, a conductive coating or a coating with a thermosensitive effect, a temperature limiter or a temperature fuse.
6. The electric mat of claim 1, wherein: the intelligent control system also comprises an indicator light which is electrically connected with the main control module and is controlled by the main control module.
7. The electric mat of claim 1, wherein: the heating body and the temperature sensing body are positioned between the insulating surface layer and the insulating bottom layer, and the temperature sensing body is tightly attached to the heating body.
8. The electric mat of claim 1, wherein said temperature controller is a single-chip microcomputer.
9. The electric mat of claim 8, wherein said single chip microcomputer comprises:
the power supply module is used for providing electric energy control for the temperature sensing body and the heating body;
the switch module is used for controlling power on and power off;
the temperature acquisition module is electrically connected with the temperature sensing body and used for receiving a temperature signal from the temperature sensing body;
the heating control module is electrically connected with the heating body and is used for controlling the working power of the heating body;
and the main control module is used for controlling the work of the power supply module, the switch module, the temperature acquisition module and the heating control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021287980.5U CN212393015U (en) | 2020-07-05 | 2020-07-05 | Electric heating pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021287980.5U CN212393015U (en) | 2020-07-05 | 2020-07-05 | Electric heating pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212393015U true CN212393015U (en) | 2021-01-22 |
Family
ID=74256108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021287980.5U Active CN212393015U (en) | 2020-07-05 | 2020-07-05 | Electric heating pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212393015U (en) |
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2020
- 2020-07-05 CN CN202021287980.5U patent/CN212393015U/en active Active
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