CN207286028U - A kind of shoe drier with safeguard protection - Google Patents
A kind of shoe drier with safeguard protection Download PDFInfo
- Publication number
- CN207286028U CN207286028U CN201720126038.2U CN201720126038U CN207286028U CN 207286028 U CN207286028 U CN 207286028U CN 201720126038 U CN201720126038 U CN 201720126038U CN 207286028 U CN207286028 U CN 207286028U
- Authority
- CN
- China
- Prior art keywords
- protective tube
- shoe
- thermistor
- safeguard protection
- shoe drier
- 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
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- Resistance Heating (AREA)
Abstract
A kind of shoe drier with safeguard protection, including power cord, junction box, heater, heat sink and plug.In the thermistor of each negative temperature coefficient in parallel in the both ends of 2 heaters；On the power cord close to plug, a protective tube is installed.Shoe temperature raises, and the thermistor of negative temperature coefficient diminishes, and the electric current for flowing through protective tube exceedes protective tube rated value, protective tube is blown, active deenergization, stopping continues to heat, security incident caused by the excessive possibility of local temperature in footwear is avoided, improves the security performance of shoe drier.
Description
Technical field
A kind of shoe drier that shoes are baked for electric oven is the utility model is related to, which can carry out safeguard protection.
Background technology
It is wetly in footwear, wear uncomfortable；Moist shoes are worn for a long time, easily trigger tinea pedis.There are many shoe driers,
Such as Patent No. 89213392.9, the utility model of entitled electric shoe drier, by electrical heating, by drying shoes, but is somebody's turn to do
Shoe drier does not have security setting, circuit problem occurs, easily triggers fire.Patent No. 00249876.6, entitled shoe baking device
Utility model, by insuring the thermistor of resistance or positive temperature coefficient, protect the short circuit of circuit.Ordinary circumstance, shoe drier
Power is low, and in the case of ventilation, prolonged baking, will not cause localized hyperthermia.Proper use of shoe drier, shoe drier are also difficult
To there is short circuit.But a variety of situations, such as due to closed in footwear, by wet socks plug in welt, heat, can make in footwear for a long time
Temperature is assembled, and then high temperature occurs in part, easily triggers fire.
The content of the invention
In order to avoid in footwear local temperature it is excessive may caused by security incident, improve the security performance of shoe drier, this reality
A kind of shoe drier with safeguard protection is provided with new, can prevent the excessive caused security incident of local temperature.
Technical solution is used by the utility model solves its technical problem：Shoe drier include power cord, junction box,
Heater, heat sink and plug, two heaters are separately mounted in two pieces of heat sinks；At the both ends of two heaters each in parallel one
After the thermistor of a negative temperature coefficient, it is together in series with power cord, through junction box, on the power cord close to plug, series connection
One protective tube, then be electrically connected with plug.
The heater is low power Electric soldering iron core.
On the heat sink, heater has insulated handle with power cord junction, and thermistor is placed in insulated handle
It is interior.
The insulated handle is equipped with an opening, passes through opening, thermistor energy direct feeling shoe temperature.
The protective tube is placed in junction box.
The protective tube insures resistance for plate glass insurance fiber tube or coiling.
Shoe temperature raises, and the thermistor resistance value of negative temperature coefficient diminishes, and because thermistor and heater are in parallel, flows through
The electric current increase of thermistor, causes the electric current for flowing through protective tube to exceed its rated value, protective tube is blown, so that shoe drier breaks
Switch power supply, shoes stop continuing heated baking.
The beneficial effects of the utility model are that shoe temperature rise, the thermistor of negative temperature coefficient diminishes, and flows through insurance
The electric current of pipe exceedes protective tube rated value, protective tube is blown, active deenergization, and stopping continues to heat.Realize and actively power off,
It is simple in structure only with the thermistor and protective tube of negative temperature coefficient.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the embodiment of the utility model.
Fig. 2 be the utility model embodiment in insulated handle structure diagram.
Fig. 3 is the structure diagram of the embodiment middle separated time box of the utility model.
Fig. 4 is the embodiment connection schematic diagram of the utility model.
1. heat sink in figure, 2. heat-dissipating pipes, 3. insulated handles, 4. openings, 5. power cords, 6. junction boxs, 7. indicator lights, 8.
Plug, 9. protective tubes, 10. thermistors, 31. heaters, 32. pin holes, 33. axis pins, 34. wire clamps.
Embodiment
In Fig. 1, shoe drier includes power cord（5）, junction box（6）, heater（31）, heat sink（1）And plug（8）；
Heat-dissipating pipe is installed on the vertical axial of heat sink（2）, heat-dissipating pipe is integrally formed with heat sink；Having heaters is placed in heat-dissipating pipe
（31）；Heat sink（1）There is insulated handle with power cord junction（3）, insulated handle（3）On be provided with an opening（4）；Insulation
Handle（3）The thermistor of one negative temperature coefficient is inside installed（10）, it is warm in thermistor energy direct feeling footwear by opening
Degree；Junction box（6）On an indicator light is installed（7）, a protective tube is installed in junction box（9）；Thermistor（10）And heating
Device（31）It is in parallel；Indicator light（7）With protective tube（9）It is in parallel；Use power cord（5）After the circuit series connection that two heaters are formed,
Concatenated again with the circuit that protective tube is formed, be coupled to plug（8）On.
In Fig. 2, insulated handle（3）It is by there is axis pin（33）And pin hole（32）Two pieces of handle piece make-ups form, in handle
There are a cavity, thermistor in piece（10）And heater（31）After parallel connection, pass through power cord（5）Pick out；Thermistor（10）Peace
It is placed in handle cavity, wire clamp（34）Power cord is bundled.
In Fig. 3, protective tube（9）With indicator light（7）Parallel connection, then connect with the circuit of two heaters composition, it is coupled to plug
On.
Heater is Electric soldering iron core, and power is 13 watts；The thermistor model of negative temperature coefficient is MF52AT, and 25 DEG C of whens are hindered
It is worth for 10 kilo-ohms；Protective tube is that rated value is pacified for 0.2,250 volts of cartridge fuse.
The heater of shoe drier is put into footwear, heat sink and insulated handle are also placed in footwear；Shoe temperature raises, insulation
The thermistor of negative temperature coefficient in handle experiences the change of temperature, and resistance value diminishes, and flows through the electric current increase of thermistor, stream
Electric current increase through protective tube, when temperature reaches 90 DEG C, flows through the electric current overrate of protective tube, blowout is main
Dynamic circuit breaker switch power supply, shoe drier stop continuing to heat.
Claims (6)
1. a kind of shoe drier with safeguard protection, including power cord, junction box, heater, heat sink and plug, two heating
Device is separately mounted in two pieces of heat sinks, and two heaters are connected with power cord, through junction box, is electrically connected with plug, it is characterized in that：
In the thermistor of each negative temperature coefficient in parallel in the both ends of two heaters；On the power cord close to plug, one is installed
Protective tube.
2. the shoe drier according to claim 1 with safeguard protection, it is characterized in that：The heater is low power
Electric soldering iron core.
3. the shoe drier according to claim 1 with safeguard protection, it is characterized in that：On the heat sink, heater
There is insulated handle with power cord junction, thermistor is placed in insulated handle.
4. the shoe drier according to claim 3 with safeguard protection, it is characterized in that：The insulated handle is equipped with one
Opening, passes through opening, thermistor energy direct feeling shoe temperature.
5. the shoe drier according to claim 1 with safeguard protection, it is characterized in that：The protective tube is placed in separated time
In box.
6. there is the shoe drier of safeguard protection according to claim 1 or 5, it is characterized in that：The protective tube is glass
Cartridge fuse or coiling insurance resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720126038.2U CN207286028U (en) | 2017-02-13 | 2017-02-13 | A kind of shoe drier with safeguard protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720126038.2U CN207286028U (en) | 2017-02-13 | 2017-02-13 | A kind of shoe drier with safeguard protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207286028U true CN207286028U (en) | 2018-05-01 |
Family
ID=62270412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720126038.2U Expired - Fee Related CN207286028U (en) | 2017-02-13 | 2017-02-13 | A kind of shoe drier with safeguard protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207286028U (en) |
-
2017
- 2017-02-13 CN CN201720126038.2U patent/CN207286028U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180501 Termination date: 20190213 |