CN2239688Y - Frigid-proof device - Google Patents
Frigid-proof device Download PDFInfo
- Publication number
- CN2239688Y CN2239688Y CN 95234232 CN95234232U CN2239688Y CN 2239688 Y CN2239688 Y CN 2239688Y CN 95234232 CN95234232 CN 95234232 CN 95234232 U CN95234232 U CN 95234232U CN 2239688 Y CN2239688 Y CN 2239688Y
- Authority
- CN
- China
- Prior art keywords
- heater element
- utility
- model
- power supply
- field work
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The utility model discloses a cold proof device which is suitable for field work in winter and is characterized in that a thermostat is connected in series between a heating element and a power source; the heating element is especially suitable for the field work such as a motorcycle driver, point duty, etc; the utility model provides an ambulatory heating source for staffs in field work, the cold resistance of the staffs in field work is improved, the body health of the staffs is ensured, the new approaches of field cold proof articles are enlarged, and the utility model has the advantages of simple structure, convenience and practicability.
Description
The utility model is a kind of winter protection device, particularly a kind of winter protection device that is applicable to field work in winter.
Be walking during winter people's operation at present or go for a ride and all use warm wear warming that its only plays insulation effect, therefore run into weather and cross cold or when hanging out in the field for a long time, the winter protection effect of insulated cold wear is then incompetent.Winter, Motor-cyclist's finger and knee were vulnerable to cold the erosion most, and only were at present to adopt the winter protection means of passivitys such as mitten to be guarded against, thereby can not fundamentally solve driver's sufferings and worry.
The purpose of this utility model provides a kind of winter protection device, and when people go out or during field work in the winter time, its can evolution of heat, the decline of body temperature when remedying cold climate.
Task of the present utility model is achieved in that
A kind of winter protection device is made up of heater element 4, power supply 1 and switch 2, it is characterized in that series connection thermostat 3 between heater element 4, the power supply 1, and power supply 1 is a DC power supply.What thermostat 3 adopted is PTC themistor.Heater element 4 is the heater elements that are fixed together with resistance wire and the hot pressing of polyvinyl chloride silk screen.Heater element 4 also can be the heater element that flat resistor disc and the hot pressing of polyvinyl chloride silk screen are fixed together.
When connecting circuit, PTC heater element 4 resistance values are very little, and loop current is bigger, and PTC heater element 4 consumed powers are bigger, and unit temp rises, and this moment, the PTC resistance value rose with temperature.Therefore electric current reduces gradually in the whole device, at this moment the power of resistance wire also reduces, thereby keep constant temperature or temperature to descend, PTC resistance also descends when temperature descends, therefore loop current rises again, go down so repeatedly, just form a close-loop feedback control system, thereby reach the warming purpose of constant temperature.
Advantage of the present utility model is that this device can provide a kind of mobile pyrotoxin for the field work personnel, improve field man's cold-resistant condition, guaranteed the healthy of staff, enlarged the new way of the winter protection article of field work, and it is simple in structure, convenient and practical.
Accompanying drawing has been described an embodiment of the present utility model.
Fig. 1-winter protection device circuit figure;
Fig. 2-flat resistor disc outline drawing.
Below in conjunction with accompanying drawing the utility model is further described:
Select 1Cr for use
13AI
4Flat resistor disc strikes out shape shown in Figure 2, is fixed into one with the hot pressing of polyvinyl chloride silk screen then, connects with the cable duplex wire and makes heater element 4; Can make shapes such as vest, knee-pad, gloves according to purposes and use object difference.MZ61 is welded on the printed substrate with the PTC thermistor, makes thermostat, forms closed-circuit with DC power supply 1, switch 2 then.If use for the Motor-cyclist, DC power supply 1 adopts storage battery, how long travel so all can the conservation of nature driver healthy, if for the patrol police, when the traffic police uses, DC power supply 1 can adopt wearing formula small battery, uses more convenient.
Claims (4)
1, a kind of winter protection device is made up of heater element, power supply and switch, it is characterized in that the thermostat (3) of connecting between heater element (4), the power supply (1), and power supply (1) is a DC power supply.
2, winter protection device according to claim 1 is characterized in that described thermostat (3) is a PTC themistor.
3, winter protection device according to claim 1 is characterized in that heater element (4) is the heater element that resistance wire and the hot pressing of polyvinyl chloride silk screen are fixed together.
4, winter protection device according to claim 1 is characterized in that heater element (4) is the heater element that flat resistor disc and the hot pressing of polyvinyl chloride silk screen are fixed together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 95234232 CN2239688Y (en) | 1995-07-01 | 1995-07-01 | Frigid-proof device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 95234232 CN2239688Y (en) | 1995-07-01 | 1995-07-01 | Frigid-proof device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2239688Y true CN2239688Y (en) | 1996-11-06 |
Family
ID=33878207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 95234232 Expired - Fee Related CN2239688Y (en) | 1995-07-01 | 1995-07-01 | Frigid-proof device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2239688Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102689553A (en) * | 2012-05-29 | 2012-09-26 | 张秀英 | Electric heating eraser |
-
1995
- 1995-07-01 CN CN 95234232 patent/CN2239688Y/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102689553A (en) * | 2012-05-29 | 2012-09-26 | 张秀英 | Electric heating eraser |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |