CN214256656U - Electric heating pad with accurate temperature control - Google Patents
Electric heating pad with accurate temperature control Download PDFInfo
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- CN214256656U CN214256656U CN202120148748.1U CN202120148748U CN214256656U CN 214256656 U CN214256656 U CN 214256656U CN 202120148748 U CN202120148748 U CN 202120148748U CN 214256656 U CN214256656 U CN 214256656U
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Abstract
The utility model relates to an accurate electric pad of accuse temperature, including the heating film that is equipped with heating circuit and with heating circuit electric connection's control panel, a serial communication port, be equipped with temperature element on the control panel, the surface of heating film is equipped with metallic ink layer, temperature element's temperature sensing face and metallic ink layer contact temperature sensing. The utility model discloses a surface at the film that generates heat sets up metal printing ink layer, metal printing ink layer and the film in close contact with that generates heat to temperature measuring element's temperature sensing face and metal printing ink layer contact temperature sensing, the heat of the film during operation that generates heat can transmit temperature measuring element's temperature sensing face through metal printing ink layer, and middle heat loss is very little, and temperature measuring element's temperature sensing is very accurate, can realize the accurate accuse temperature to the electric pad.
Description
Technical Field
The utility model relates to an electric heating pad, in particular to an electric heating pad with accurate temperature control.
Background
The electric heating pad is a product which is electrified to generate heat to heat a user.
Chinese patent document CN202940990U discloses a multi-functional warm table mat, including the pad body and the control switch that generate heat, the pad body that generates heat is equipped with heating circuit including bottom, top layer and clamp locating the heating rete between bottom and top layer in the heating rete, heating circuit has binding post, heating rete in arranged a heating circuit, control switch is the inside high low temperature control switch who is equipped with high low temperature gear selection circuit, and control switch's high low temperature gear selection circuit output is connected with heating circuit's binding post electricity, and control switch's high low temperature gear selection circuit input sets up the plug of connecting the commercial power.
As shown in fig. 1, a schematic diagram of an electric pad structure in the prior art is shown, where reference numeral 100 is a heating film layer (i.e., a heating film), reference numeral 200 is a control switch (i.e., a control board), reference numeral 300 is a heating pad body (i.e., an electric pad body), and a temperature sensing element 201 is disposed in the control switch (i.e., the control board) of a conventional electric pad, so as to control the temperature of the electric pad.
Therefore, further improvements are needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, and provide an electric heating pad with accurate temperature control, which has accurate temperature measurement and accurate temperature control.
The purpose of the utility model is realized like this:
the utility model provides an accurate electric heat pad of accuse temperature, is equipped with temperature element including the heating film that is equipped with heating circuit and with heating circuit electric connection's control panel, its characterized in that, be equipped with temperature element on the control panel, the surface of heating film is equipped with metal printing ink layer, and temperature element's temperature sensing face and metal printing ink layer contact temperature sensing.
As a specific technical scheme:
the heating film further comprises a first insulating film and a second insulating film which are vertically overlapped, the heating circuit is arranged in the first insulating film and the second insulating film, and the upper surface of the first insulating film and the lower surface of the second insulating film form the outer surface of the heating film.
One end of the metal ink layer extends towards the middle of the heating film or extends towards the other end of the position of the temperature measuring element relative to the position of the temperature measuring element, and the other end of the metal ink layer extends towards the position of the temperature measuring element.
And a temperature measuring line is arranged on the temperature sensing surface of the temperature measuring element, and the temperature measuring end of the temperature measuring line is in contact with the metal ink layer for sensing temperature.
The temperature sensing surface of the temperature sensing element is pressed on the metal ink layer to contact with temperature sensing.
The electric heating pad comprises an electric heating pad body coated on the surface of the heating film, a control box is arranged on the electric heating pad body, and the control board is installed in the control box.
The utility model has the advantages as follows:
the metal ink layer is arranged on the outer surface of the heating film, the metal ink layer is in close contact with the heating film, the temperature sensing surface of the temperature measuring element is in contact with the metal ink layer for sensing temperature, heat generated when the heating film works can be transmitted to the temperature sensing surface of the temperature measuring element through the metal ink layer, heat loss in the middle is very small, the temperature sensing of the temperature measuring element is very accurate, and accurate temperature control of the electric heating pad can be achieved.
The metal printing ink layer extends along the surface of the heating film, the larger the extension area is, the longer the extension span is, the temperature of the metal printing ink layer is closer to the overall average heating temperature of the heating film, the temperature transmission is more accurate, namely, the temperature sensing of the temperature measuring element is more accurate, and the more accurate temperature control of the electric heating pad can be realized.
After the electric pad accuse temperature is accurate, the safety degree is higher, can effectively avoid the electric pad to be in work under the high temperature, avoids scalding the human body or cause the accident, and factor of safety is higher, and the electric pad can last work under more stable temperature, and the body of people feels more comfortable.
Drawings
Fig. 1 is a schematic diagram of a structure of an electric heating pad in the prior art.
Fig. 2 is a schematic view of an electric heating mat according to a first embodiment of the present invention.
Fig. 3 is a schematic structural view of the temperature sensing structure of the second embodiment of the present invention, showing the temperature sensing structure of the temperature sensing line contacting the metal ink layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
First embodiment
Referring to fig. 2, the electric pad with accurate temperature control of the embodiment includes a heating film 1 having a heating circuit 11 and a control board 2 electrically connected to the heating circuit 11, and is characterized in that a temperature measuring element 21 is disposed on the control board 2, a metal ink layer 22 is disposed on an outer surface of the heating film 1, and a temperature sensing surface of the temperature measuring element 21 senses temperature by contacting with the metal ink layer 22. Through setting up metallic ink layer 22 at the surface of heating film 1, metallic ink layer 22 and the 1 in close contact with of heating film to the temperature sensing face and the metallic ink layer 22 contact temperature sensing of temperature measuring element 21, the heat of the during operation of heating film 1 can transmit the temperature sensing face of temperature measuring element 21 through metallic ink layer 22, and middle heat loss is very little, and temperature measuring element 21's temperature sensing is very accurate, can realize the accurate accuse temperature to the electric heat pad. This technical scheme can not increase the thickness of the film 1 that generates heat almost, can not change the thickness size of prior art electric pad, and the commonality is high.
Further, the heating film 1 further includes a first insulating film and a second insulating film which are stacked up and down, the heating circuit 11 is disposed in the first insulating film and the second insulating film, an upper surface of the first insulating film and a lower surface of the second insulating film form an outer surface of the heating film 1 (in this embodiment, the first insulating film and the second insulating film are not labeled in the drawing of this embodiment, and a schematic structural diagram of the first insulating film, the second insulating film and the heating circuit 11 can refer to the second embodiment), the heating film 1 is a conventional structure, the structure does not need to be changed, the cost is low, and a person skilled in the art can understand the structure.
Further, one end of the metal ink layer 22 extends toward the middle of the heating film 1 or extends toward the other end of the position of the temperature measuring element 21 (in this embodiment, a technical scheme that one end of the metal ink layer 22 extends toward the middle of the heating film 1 is preferred), and the other end extends toward the position of the temperature measuring element 21. The surface extension of film 1 that generates heat is followed on the heat conduction metal 22 layer, and extension area is big more, the extension span is longer, and metal ink layer 22's temperature more is close to the whole average temperature that generates heat of film 1 that generates heat, and the temperature transmission is more accurate, and temperature sensing of temperature measuring element 21 is more accurate promptly, can realize the more accurate accuse temperature to the electric pad.
More specifically, metallic ink layer 22 of the present embodiment is an ink formulated with a unique metallic glitter effect using fine metallic flakes instead of pigments or dyes in conventional inks. The metal ink is mainly silver ink and gold ink. Because the metal sheet is contained in the heating film, and the space in the electric heating pad is small (the heating film 1 and the electric heating pad body 3 are tightly coated, and too many gaps do not exist), the heating film also has good heat conductivity, the heat generated by the work of the heating film 1 can also quickly lead to the temperature sensing surface of the temperature measuring element 21 through the metal ink layer 22, the metal ink layer 22 can be arranged on the heating film 1 through conventional modes such as coating, printing and the like, the manufacturing process is simple, and the technical personnel in the field can understand the heating film.
Furthermore, the temperature sensing surface of the temperature measuring element 21 is pressed on the metal ink layer 22 to contact with the temperature sensing.
Further, the electric heating pad comprises an electric heating pad body 3 coated on the surface of the heating film 1, a control box is arranged on the electric heating pad body 3, and the control panel 2 is installed in the control box. Specifically, an elastic crimping part may be further provided on the control box or the control board 2, and the temperature sensing surface of the temperature sensing element 21 can be better crimped on the metal ink layer 22 to sense the contact temperature.
Second embodiment
Referring to fig. 3, the electric pad with accurate temperature control of the present embodiment is similar to the first embodiment in that: the temperature sensing surface of the temperature sensing element 21 is provided with a temperature sensing line 211, and the temperature sensing end of the temperature sensing line 211 is in contact with the metal ink layer 22 for sensing temperature.
Specifically, the metal ink layer 22 may form a terminal, and the temperature measuring line 211 and the terminal are contacted with the temperature sensor by welding or the like.
The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides an accurate electric heat pad of accuse temperature, is equipped with temperature element (21) including the film (1) that generates heat that is equipped with heating circuit (11) and with heating circuit (11) electric connection's control panel (2), its characterized in that, be equipped with temperature element (21) on control panel (2), the surface of film (1) that generates heat is equipped with metallic ink layer (22), and the temperature sensing face and the metallic ink layer (22) contact temperature sensing of temperature element (21).
2. The accurate temperature control electric pad of claim 1, wherein: the heating film (1) further comprises a first insulating film (12) and a second insulating film (13) which are vertically stacked, the heating circuit (11) is arranged in the first insulating film (12) and the second insulating film (13), and the upper surface of the first insulating film (12) and the lower surface of the second insulating film (13) form the outer surface of the heating film (1).
3. The accurate temperature control electric pad of claim 1, wherein: one end of the metal ink layer (22) extends towards the middle of the heating film (1) or extends towards the other end of the position where the temperature measuring element (21) is located, and the other end extends towards the position where the temperature measuring element (21) is located.
4. The accurate temperature control electric pad of claim 1, wherein: the temperature sensing surface of the temperature sensing element (21) is provided with a temperature sensing line (211), and the temperature sensing end of the temperature sensing line is in contact with the metal ink layer (22) for sensing temperature.
5. The accurate temperature control electric pad of claim 1, wherein: the temperature sensing surface of the temperature sensing element (21) is pressed on the metal ink layer (22) to be contacted with temperature sensing.
6. The accurate temperature control electric pad according to any one of claims 1 to 5, wherein: the electric heating pad comprises an electric heating pad body (3) coated on the surface of the heating film (1), a control box is arranged on the electric heating pad body (3), and the control board (2) is installed in the control box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120148748.1U CN214256656U (en) | 2021-01-20 | 2021-01-20 | Electric heating pad with accurate temperature control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120148748.1U CN214256656U (en) | 2021-01-20 | 2021-01-20 | Electric heating pad with accurate temperature control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214256656U true CN214256656U (en) | 2021-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120148748.1U Active CN214256656U (en) | 2021-01-20 | 2021-01-20 | Electric heating pad with accurate temperature control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214256656U (en) |
-
2021
- 2021-01-20 CN CN202120148748.1U patent/CN214256656U/en active Active
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