CN204091620U - Double shield constant temperature electric heating carpet - Google Patents
Double shield constant temperature electric heating carpet Download PDFInfo
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- CN204091620U CN204091620U CN201420347598.7U CN201420347598U CN204091620U CN 204091620 U CN204091620 U CN 204091620U CN 201420347598 U CN201420347598 U CN 201420347598U CN 204091620 U CN204091620 U CN 204091620U
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Abstract
The utility model discloses a kind of double shield constant temperature electric heating carpet, comprise the thermal resistance wire layer (5), temperature sensor Rt (6), shield layer (2), magnetic masking layer (3) and the flame-retardant layer one (4) that are arranged between carpet top layer (1) and substrate (8), and the control circuit be connected with thermal resistance wire layer; Step-down rectifying circuit, solid-state switch and PID controller are set in described control circuit; Solid-state switch is connected AC power with the input of step-down rectifying circuit, step-down rectifying circuit by solid-state switch for PID controller provides power supply; The output of solid-state switch connects thermal resistance wire R; The output of PID controller connects temperature sensor Rt.The utility model can set heating-up temperature, ensure that the constant of heating-up temperature, meets user demand, improve comfort; Eliminate the noise produced in using simultaneously; And there is electric leakage, overcurrent, overload protection function, guarantee the security protection performance in use procedure.
Description
Technical field
The utility model relates to a kind of carpet, specifically a kind of double shield constant temperature electric heating carpet.
Background technology
Carpet is a kind of ornament conventional in daily life, in order to play the effect of warming and heat insulation in the winter of cold, has occurred that some adopt the mode adding resistance wire in carpet at present, has achieved the effect of carpet warming and heat insulation.But some common in the market electric heat mats are due to simple structure, the setting of temperature cannot be carried out in advance and ensure the constant of temperature, cannot comfort be met; Simultaneously, electric heat mat of the prior art adopts Alternating Current Power Supply mostly, forms certain inductance due to the wiring reason of thermal resistance wire, will produce AC noise by during 220V alternating voltage, then in quiet environment for use, cause noise pollution, cannot user demand be met; And existing heating carpet lacks electric leakage, overcurrent, overload protection function mostly, security protection weak effect, cannot ensure the security performance in use procedure.
Utility model content
For above-mentioned prior art Problems existing, the utility model provides a kind of double shield constant temperature electric heating carpet, can set heating-up temperature, ensures the constant of heating-up temperature, meets user demand, improves comfort; Eliminate the noise produced in using simultaneously; And there is electric leakage, overcurrent, overload protection function, guarantee the security protection performance in use procedure.
To achieve these goals, this double shield constant temperature electric heating carpet comprises the thermal resistance wire layer be arranged between carpet top layer and substrate, the temperature sensor Rt between the thermal resistance wire R being located in described thermal resistance wire layer, and the control circuit be connected with thermal resistance wire layer;
Shield layer, magnetic masking layer and flame-retardant layer one is set gradually from top to bottom between described carpet top layer and described thermal resistance wire layer;
Step-down rectifying circuit, solid-state switch and PID controller are set in described control circuit; Described solid-state switch is connected AC power with the input of step-down rectifying circuit, step-down rectifying circuit by solid-state switch for PID controller provides working power; The output of solid-state switch connects thermal resistance wire R; The output of PID controller connects temperature sensor Rt.
Further, flame-retardant layer one specular of described shield layer, magnetic masking layer and employing permanent fire retardant material is arranged at the both sides up and down of described thermal resistance wire layer.
As preferably of the present utility model, the flame-retardant layer two adopting permanent fire retardant material is set between described thermal resistance wire layer and described substrate.
As preferably of the present utility model, described thermal resistance wire layer adopts high-resistance electrothermic alloy resistance wire.
As preferably of the present utility model, described shield layer adopts metal copper mesh electrical shielding material.
As preferably of the present utility model, described magnetic masking layer adopts aluminium-foil paper magnetic shielding material.
Further, described PID controller input arranges normally closed switch SB, and PID controller connects described solid-state switch and step-down rectifying circuit by normally closed switch SB.
Further, described solid-state switch be connected zero-sequence current earth leakage circuit-breaker QF between power supply; The output of solid-state switch connects rectifier bridge through fuse FU, and the output of rectifier bridge connects thermal resistance wire R.
Further, the output of described PID controller connects display screen.
Further, described zero-sequence current earth leakage circuit-breaker QF be connected the power source indicating device be made up of resistance R1 and light emitting diode D between AC power.
Compared with prior art, the beneficial effect of this double shield constant temperature electric heating carpet is as follows:
1, the shield layer, magnetic masking layer and the flame-retardant layer structure that structurally adopt of this double shield constant temperature electric heating carpet, can realize electromagnetic shielding action, prevent electromagnetic radiation, prevent the generation of accident of human electric shock; The soaking into of steam can also be prevented, hard object suppresses damage to electric heat mat; Magnetic masking layer also has uniform heat conduction effect simultaneously, and heat is evenly come out from bottom to top, and heating space is moist, and suitable various crowd, especially has significant lenitive effect to joint patient.
2, this double shield constant temperature electric heating carpet adopts the mode by shielded cable external control circuit on the control circuitry, utilizes PID control technology, has the advantages that temperature control is rapid, the response time is short, overshoot scope is little, control accuracy is high; Temperature sensor work is coordinated by PID controller, can arrange according to needing in advance, with room temperature, switch control rule is carried out to electric heat mat at times, achieve and temperature is carried out to electric heat mat preset and temperature constant function, and the parametric variable such as real time temperature, running time can be shown by display.
3, the power input in control circuit adopts solid-state switch as control appliance, completely eliminates the AC noise that conventional AC contactor operationally produces, and can realize the effect effectively eliminating electric arc simultaneously; In addition, in circuit working end, adopt the form of rectifier bridge rectification, filtering, ac power supply method is converted to direct current supply, for thermal resistance wire directly heats, also achieve the object thoroughly eliminating AC noise, substantially increase the comfort of electric heat mat.
4, the power input in control circuit adopts zero-sequence current earth leakage circuit-breaker, when there is electric leakage accident, can cut off whole AC power, guaranteeing Electrical Safety; Also adopting fuse at circuit working end simultaneously, when there is overcurrent, overload or short trouble, directly can be cut off the electricity supply by the fusing of fuse, realizing circuit protective effect.
This double shield constant temperature electric heating carpet can set heating-up temperature, ensure that the constant of heating-up temperature, meets user demand, improve comfort; Eliminate the noise produced in use simultaneously; And there is electric leakage, overcurrent, overload protection function, ensure that the security protection performance in use procedure.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model;
Fig. 2 is control circuit figure of the present utility model;
Fig. 3 is step-down rectifying circuit figure;
In figure: 1, carpet top layer, 2, shield layer, 3, magnetic masking layer, 4, flame-retardant layer one, 5, thermal resistance wire layer, 6, temperature sensor, 7, flame-retardant layer two, 8, substrate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, this double shield constant temperature electric heating carpet comprises the thermal resistance wire layer 5 be arranged between carpet top layer 1 and substrate 8, the temperature sensor Rt6 between the thermal resistance wire R being located in described thermal resistance wire layer 5, and the control circuit be connected with thermal resistance wire layer 5;
Shield layer 2, magnetic masking layer 3 and flame-retardant layer 1 is set gradually from top to bottom between described carpet top layer 1 and described thermal resistance wire layer 5; Achieved the double shield constant temperature electric heating carpet backing and installation system of electrical shielding and magnetic screen by shield layer 2 and magnetic masking layer 3, ensure that heating carpet security protection effect structurally, guarantee the security protection performance in use procedure.
As shown in Figure 2, in described control circuit, step-down rectifying circuit, solid-state switch and PID controller are set; Described solid-state switch is connected AC power with the input of step-down rectifying circuit, as shown in Figure 3, for the schematic diagram of step-down rectifying circuit, step-down rectifying circuit is by step-down transformer, rectification circuit, filter capacitor, and export 5V DC voltage, finally by solid-state switch for PID controller provides stable 5V direct current supply working power through mu balanced circuit; The output of solid-state switch connects thermal resistance wire R, for thermal resistance wire R carries out confession electrical heating; The output of PID controller connects temperature sensor Rt, for carrying out Real-Time Monitoring to the heating-up temperature of thermal resistance wire R, realizing intelligent constant-temperature and controlling.
Adopt solid-state switch as control appliance, completely eliminate the AC noise that traditional mechanical type contact switch operationally produces; In addition, solid-state switch compares with mechanical type contact switch following advantage: (1) long service life, the phenomenon of contact abrasion during the disjunction of mechanical type contact switch, and solid-state switch can not produce wear phenomenon; (2) operating frequency of solid-state switch is high, and mechanical type contact switch is 4 ~ 10 power frequency cycles, solid-state switch <10ms; (3) electric spark can not be produced when solid-state switch connection or disjunction; (4) solid-state switch use safety, electromagnetic interference is little, and reliability is high.
Temperature sensor Rt work is coordinated by PID controller, button can be set by SB1, the SB2 etc. in PID controller, temperature setting is carried out according to the temperature needed in advance, with room temperature, switch control rule is carried out to electric heat mat at times, achieve and temperature is carried out to electric heat mat preset and the function of temperature constant.
Further, as shown in Figure 1, flame-retardant layer 1 specular of described shield layer 2, magnetic masking layer 3 and employing permanent fire retardant material is arranged at the both sides up and down of described thermal resistance wire layer 5; Achieve double-layer electric magnetic screen and Double-layer flame-retardant effect, can electromagnetic shielding action be realized, prevent electromagnetic radiation, prevent the generation of accident of human electric shock; The soaking into of steam can also be prevented, hard object suppresses damage to electric heat mat; Magnetic masking layer also has uniform heat conduction effect simultaneously, and heat is evenly come out from bottom to top, and heating space is moist, and suitable various crowd, especially has significant lenitive effect to joint patient; The flame-retardant layer 1 that have employed permanent fire retardant material better can realize security protection performance.
As preferably of the present utility model, the flame-retardant layer 27 adopting permanent fire retardant material is set between described thermal resistance wire layer 5 and described substrate 8.Ensure that the long-time stability of flame retardant effect, better realize security protection performance.
As preferably of the present utility model, described thermal resistance wire layer 5 adopts high-resistance electrothermic alloy resistance wire.Ensure that the efficiency of heating surface to greatest extent, ensure result of use and the life-span of heating carpet.
As preferably of the present utility model, described shield layer 2 adopts metal copper mesh electrical shielding material.The accident of human electric shock that the insulating barrier of firing equipment causes because of external force or self deterioration can be prevented, the shielding line reliable ground of metal copper mesh and cable, guarantee the security performance used.
As preferably of the present utility model, described magnetic masking layer 3 adopts aluminium-foil paper magnetic shielding material.Achieve magnetic screen function, prevent electromagnetic radiation, also have the effect of uniform heat conduction simultaneously, heat is evenly come out from bottom to top, and heating space is moist, and suitable various crowd, especially has significant lenitive effect to joint patient.
Further, described PID controller input arranges normally closed switch SB, and PID controller connects described solid-state switch and step-down rectifying circuit by normally closed switch SB.When the actual temperature that temperature sensor Rt monitors thermal resistance wire R reaches preset value, normally closed switch SB will be disconnected by PID controller, and stop carrying out confession electrical heating to thermal resistance wire R; When the actual temperature that temperature sensor Rt monitors thermal resistance wire R is lower than preset value, normally closed switch SB will be connected by PID controller, and continue to carry out confession electrical heating to thermal resistance wire R, until reach default temperature value.
Further, described solid-state switch be connected zero-sequence current earth leakage circuit-breaker QF between power supply, can occur electric leakage accident time, cut off whole AC power, guarantee Electrical Safety; The output of solid-state switch connects rectifier bridge through fuse FU, and the output of rectifier bridge connects thermal resistance wire R; Adopt the form of rectifier bridge rectification, filtering, ac power supply method is converted to direct current supply, for thermal resistance wire R directly heats, also achieve the object thoroughly eliminating AC noise, substantially increase the comfort of electric heat mat; Fuse FU when there is overcurrent, overload or short trouble, directly can be cut off the electricity supply by the fusing of fuse FU, realizing circuit protective effect.
Further, the output of described PID controller connects display screen, for showing the parametric variable such as real time temperature, running time.
Further, described zero-sequence current earth leakage circuit-breaker QF be connected the power source indicating device be made up of resistance R1 and light emitting diode D between AC power, for indicating Power supply situation.
This double shield constant temperature electric heating carpet can set heating-up temperature, ensure that the constant of heating-up temperature, meets user demand, improve comfort; Eliminate the noise produced in use simultaneously; And there is electric leakage, overcurrent, overload protection function, ensure that the security protection performance in use procedure.
Claims (10)
1. a double shield constant temperature electric heating carpet, comprise the thermal resistance wire layer (5) be arranged between carpet top layer (1) and substrate (8), temperature sensor Rt (6) between the thermal resistance wire R being located in described thermal resistance wire layer (5), and the control circuit be connected with thermal resistance wire layer (5);
It is characterized in that, between described carpet top layer (1) and described thermal resistance wire layer (5), set gradually shield layer (2), magnetic masking layer (3) and flame-retardant layer one (4) from top to bottom;
Step-down rectifying circuit, solid-state switch and PID controller are set in described control circuit; Described solid-state switch is connected AC power with the input of step-down rectifying circuit, step-down rectifying circuit by solid-state switch for PID controller provides working power; The output of solid-state switch connects thermal resistance wire R; The output of PID controller connects temperature sensor Rt.
2. a kind of double shield constant temperature electric heating carpet according to claim 1, it is characterized in that, flame-retardant layer one (4) specular of described shield layer (2), magnetic masking layer (3) and employing permanent fire retardant material is arranged at the both sides up and down of described thermal resistance wire layer (5).
3. a kind of double shield constant temperature electric heating carpet according to claim 1, is characterized in that, arranges the flame-retardant layer two (7) adopting permanent fire retardant material between described thermal resistance wire layer (5) and described substrate (8).
4. a kind of double shield constant temperature electric heating carpet according to claim 1,2 or 3, is characterized in that, described thermal resistance wire layer (5) adopts high-resistance electrothermic alloy resistance wire.
5. a kind of double shield constant temperature electric heating carpet according to claim 1 and 2, is characterized in that, described shield layer (2) adopts metal copper mesh electrical shielding material.
6. a kind of double shield constant temperature electric heating carpet according to claim 1 and 2, is characterized in that, described magnetic masking layer (3) adopts aluminium-foil paper magnetic shielding material.
7. a kind of double shield constant temperature electric heating carpet according to claim 1, it is characterized in that, described PID controller input arranges normally closed switch SB, and PID controller connects described solid-state switch and step-down rectifying circuit by normally closed switch SB.
8. a kind of double shield constant temperature electric heating carpet according to claim 1, is characterized in that, described solid-state switch be connected zero-sequence current earth leakage circuit-breaker QF between power supply; The output of solid-state switch connects rectifier bridge through fuse FU, and the output of rectifier bridge connects thermal resistance wire R.
9. a kind of double shield constant temperature electric heating carpet according to claim 1 or 7, is characterized in that, the output of described PID controller connects display screen.
10. a kind of double shield constant temperature electric heating carpet according to claim 8, is characterized in that, described zero-sequence current earth leakage circuit-breaker QF be connected the power source indicating device be made up of resistance R1 and light emitting diode D between AC power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420347598.7U CN204091620U (en) | 2014-06-25 | 2014-06-25 | Double shield constant temperature electric heating carpet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420347598.7U CN204091620U (en) | 2014-06-25 | 2014-06-25 | Double shield constant temperature electric heating carpet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204091620U true CN204091620U (en) | 2015-01-14 |
Family
ID=52260095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420347598.7U Withdrawn - After Issue CN204091620U (en) | 2014-06-25 | 2014-06-25 | Double shield constant temperature electric heating carpet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204091620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068731A (en) * | 2014-06-25 | 2014-10-01 | 徐州中安机械制造有限公司 | Double-shielded constant-temperature electric heating carpet |
| CN108665670A (en) * | 2017-03-27 | 2018-10-16 | 天津市永星织造有限公司 | A kind of on-line monitoring system of intelligent carpet |
-
2014
- 2014-06-25 CN CN201420347598.7U patent/CN204091620U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068731A (en) * | 2014-06-25 | 2014-10-01 | 徐州中安机械制造有限公司 | Double-shielded constant-temperature electric heating carpet |
| CN108665670A (en) * | 2017-03-27 | 2018-10-16 | 天津市永星织造有限公司 | A kind of on-line monitoring system of intelligent carpet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150114 Effective date of abandoning: 20150722 |
|
| RGAV | Abandon patent right to avoid regrant |