CN201184975Y - Temperature controller for electric cushion without debug - Google Patents
Temperature controller for electric cushion without debug Download PDFInfo
- Publication number
- CN201184975Y CN201184975Y CNU2008200627179U CN200820062717U CN201184975Y CN 201184975 Y CN201184975 Y CN 201184975Y CN U2008200627179 U CNU2008200627179 U CN U2008200627179U CN 200820062717 U CN200820062717 U CN 200820062717U CN 201184975 Y CN201184975 Y CN 201184975Y
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- temperature
- thermostat
- temperature controller
- sensing element
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Abstract
The utility model relates to a temperature controller used for an electric heating pad without the need of debugging, which belongs to the field of the household appliance. The temperature controller is composed of a flexible part (1), a double-layer helical heating wire (2) fixed on the flexible part (1), a wire connecting device (4) connected with the double-layer helical heating wire (2) and a temperature controller (7) connected with the wire connecting device (4), wherein the flexible part (1) is provided with a semiconductor temperature inducting element TE2 connected with the wire connecting device (4), and a semiconductor temperature inducting element TE1 is arranged in the temperature controller (7). The temperature controller has the advantages that not only the temperature of the electric heating pad and the ambient temperature can be monitored through the two groups of semiconductor temperature inducting elements with consistent parameters, so that debugging is not needed during mass production, but also over temperature safety protection can be realized.
Description
Relate to the field:
The utility model relates to a kind of electric pad thermostat that need not debug, belongs to household appliance technical field.
Background technology:
Electric pad is the little flexible heat generation device of a kind of area, has two kinds of power-regulation and temperature control types on the market.Present temperature control type electric pad is the technology that the nylon layer on the employing heating line is done temperature-sensitive, and its shortcoming is the properties influence that is subjected to nylon material, and temperature-controlled precision hangs down and can not be constant fully, and practical function is undesirable.The utility model adopts the semiconductor temperature-sensing element, becomes one or more thermometrics according to the size design of electric pad area, and control electric pad temperature is regulated (the environment for use temperature is at 0～18 ℃) in the scope of room temperature～60 ℃.
Summary of the invention:
The purpose of this utility model is the above-mentioned shortcoming that overcomes prior art, designs a kind of electric pad thermostat that need not debug.
The utility model by compliant member (1), be fixed on the double-layer spiral heating line (2) on the compliant member (1), the termination (4) that links to each other with double-layer spiral heating line (2), the thermostat (7) that links to each other with termination (4) forms.Described compliant member (1) is provided with the semiconductor temperature-sensing element TE2 that links to each other with termination (4), and described semiconductor temperature-sensing element TE2 links to each other with the input end in the same way of comparer IC-2 with capacitor C 3 backs in parallel one end, and the other end links to each other with power switch SA; Be provided with semiconductor temperature-sensing element TE1 in the described thermostat (7), the end of described semiconductor temperature-sensing element TE1 with the low side of the potentiometer RW of resistance R 11 parallel connections and connect the back and link to each other with resistance R 10, the other end with the resistance R 12 of the high-end series connection of potentiometer RW and connect and then link to each other with power switch SA.
Must not debug when first characteristics of the present utility model are production in enormous quantities, its key is the semiconductor temperature-sensing element that controller circuitry has adopted two groups of parameter unanimities, and one group of temperature-sensing element TE2 (3) is arranged on the electric pad, the temperature of monitoring electric pad; One group of temperature-sensing element TE1 is placed in the controller, the monitoring of environmental temperature.Be adjusted to when minimum at not energising or temperature adjustment knob (8), no matter how room temperature changes, and being subjected to the minimum temperature of the electric pad of thermostat (7) control is exactly room temperature; When energising and when making the adjusting temperature of thermostat (7) be higher than minimum temperature or be adjusted to maximum temperature, in the thermostat semiconductor temperature-sensing element of (7) still sensing be room temperature, being arranged in the temperature that the semiconductor temperature-sensing element (3) of electric pad detects then is the temperature that is higher than room temperature.Certain variation also can take place with the variation of room temperature in maximum temperature, but its variable quantity can be accepted in practicality much smaller than the room temperature variable quantity.Second characteristic is reflected in the overtemperature safeguard protection.In order to prevent that temperature control lost efficacy, when temperature surpasses dangerous temperature, the overtemperature emergency protection structure of design will work.
Below in conjunction with accompanying drawing the utility model is described further.
Description of drawings:
Fig. 1 is a structural drawing of the present utility model.
Fig. 2 is an electrical schematic diagram of the present utility model.
Specific embodiment:
Referring to Fig. 1 and Fig. 2.The utility model by compliant member (1), be fixed on the double-layer spiral heating line (2) on the compliant member (1), the termination (4) that links to each other with double-layer spiral heating line (2), the thermostat (7) that links to each other with termination (4) forms.
In Fig. 1, band power cord plug (9) is connected with thermostat (7), and the heating wire H of heating line (2) is connected with thermostat (7) with connecting line (5) by termination (4) with safeguard protection silk S and semiconductor temperature-sensing element TE2 (3) thereof.Compliant member (1) is used for fixing heating line (2) and semiconductor temperature-sensing element (3).Power switch SA (6) and temperature setting knob (8) are arranged on the panel of thermostat, and knob (8) combines with potentiometer RW1.Thermostat (7) through the band power cord plug insert civil power 220V～, push to power switch SA (6) to the position of opening, rotary temperature setting knob (8), thermostat makes out-put supply the heating wire H heating of heating line (2), whether semiconductor temperature-sensing element TE2 (3) continuous monitoring temperature is raised to design temperature, when temperature is raised to setting value, the heating line will be subjected to thermostat to be controlled at the intermittently power-on state.If abnormal high temperature appears in the temperature of heating line, the meltability insulation course between heating wire H and safeguard protection silk S is melted, and heating wire and safeguard protection silk be once contacting, the holding circuit work that thermostat is interior and cut off output, and the line that generates heat no longer generates heat.
What represent in Fig. 2 is the electrical principle of temperature control controller; FU; SA constitutes power supply input circuit; FU plays control circuit overcurrent protection; R1; R2; FT; S constitutes the overtemperature safety protective circuit; VD5; comparer IC-1 constitutes the temperature-adjusting circuit fault secure circuit; R3; R4; C1; C2; VD3; VD4; VW constitutes ac-dc conversion circuit; R6; LD constitutes the energising indicating circuit; R9; R10; R11; R12; RW; TE1 constitutes the temperature control regulating circuit; TE1 plays temperature compensation function; R8; C3; TE2 constitutes the electric pad temperature measurement circuit; temperature control regulating circuit and electric pad temperature measurement circuit are by the break-make of comparer IC-2 control controllable silicon SCR; the "on" position of heater element H is controlled by it, R5; R7; VD2 constitutes the current limliting of comparer IC-2 output; pressure limiting and anti-pressure protection circuit.
Claims (2)
1, a kind of electric pad thermostat that need not debug, by compliant member (1), be fixed on the double-layer spiral heating line (2) on the compliant member (1), the termination (4) that links to each other with double-layer spiral heating line (2), the thermostat (7) that links to each other with termination (4) forms, it is characterized in that described compliant member (1) is provided with the semiconductor temperature-sensing element TE2 that links to each other with termination (4), semiconductor temperature-sensing element TE2 links to each other with the input end in the same way of comparer IC-2 with capacitor C 3 backs in parallel one end, and the other end links to each other with power switch SA.
2, a kind of electric pad thermostat that need not debug as claimed in claim 1, it is characterized in that being provided with in the described thermostat (7) semiconductor temperature-sensing element TE1, the end of semiconductor temperature-sensing element TE1 with the low side of the potentiometer RW of resistance R 11 parallel connections and connect the back and link to each other with resistance R 10, the other end with the resistance R 12 of the high-end series connection of potentiometer RW and connect and then link to each other with power switch SA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200627179U CN201184975Y (en) | 2008-03-31 | 2008-03-31 | Temperature controller for electric cushion without debug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200627179U CN201184975Y (en) | 2008-03-31 | 2008-03-31 | Temperature controller for electric cushion without debug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184975Y true CN201184975Y (en) | 2009-01-21 |
Family
ID=40272714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200627179U Expired - Fee Related CN201184975Y (en) | 2008-03-31 | 2008-03-31 | Temperature controller for electric cushion without debug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184975Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197706A (en) * | 2012-01-09 | 2013-07-10 | 王清传 | Temperature control method of hot wire |
-
2008
- 2008-03-31 CN CNU2008200627179U patent/CN201184975Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197706A (en) * | 2012-01-09 | 2013-07-10 | 王清传 | Temperature control method of hot wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20170331 |