CN201479404U - Power-off reset type electric immersion heater - Google Patents

Power-off reset type electric immersion heater Download PDF

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Publication number
CN201479404U
CN201479404U CN2009201898488U CN200920189848U CN201479404U CN 201479404 U CN201479404 U CN 201479404U CN 2009201898488 U CN2009201898488 U CN 2009201898488U CN 200920189848 U CN200920189848 U CN 200920189848U CN 201479404 U CN201479404 U CN 201479404U
Authority
CN
China
Prior art keywords
thermal protector
ptc
sheet
type electric
power
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 - Lifetime
Application number
CN2009201898488U
Other languages
Chinese (zh)
Inventor
陈生谷
章巨丰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU FUYANG HUAYU CONTORL ELECTRICAL APPLIANCE FACTORY
Original Assignee
HANGZHOU FUYANG HUAYU CONTORL ELECTRICAL APPLIANCE FACTORY
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HANGZHOU FUYANG HUAYU CONTORL ELECTRICAL APPLIANCE FACTORY filed Critical HANGZHOU FUYANG HUAYU CONTORL ELECTRICAL APPLIANCE FACTORY
Priority to CN2009201898488U priority Critical patent/CN201479404U/en
Application granted granted Critical
Publication of CN201479404U publication Critical patent/CN201479404U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a power-off reset type electric immersion heater, which comprises a U-type electric heating pipe and a thermal protector with a PTC, and the U-type electric heating pipe is connected in series to the thermal protector with a PTC. Two ends of the U-type electric heating pipe are fixed on a plastic seat, the thermal protector with a PTC is arranged inside the plastic seat, and a power supply wire is led into the plastic seat and connected to a series circuit formed by the U-type electric heating pipe and the thermal protector with a PTC. An upper lug, a movable contact sheet and a heat conducting sheet of the thermal protector with a PTC are connected to each other in a riveting manner and fixed on a supporting base, a static contact sheet and a lower lug are connected with each other in a riveting manner, and the lower lug and a pressing sheet are connected to the supporting base via a rivet. A bimetallic sheet with a hole in the center is arranged on a cylinder of the supporting base and a PTC heating sheet is mounted between the heat conducting sheet and the pressing sheet. When the heater is electrified, the movable contact sheet automatically separates from the static contact sheet when water is at boiling point, however the PTC heating sheet continues radiating; only when the power supply plug is unplugged and the PTC heating sheet is cool, the electric immersion heater can be reset, thereby safety and energy saving are realized.

Description

Power-off restoration type quick heater
Technical field
The utility model belongs to household appliance technical field, relates in particular to a kind of power-off restoration type quick heater.
Background technology
Present immersion heater on the market, the automatically reseting and two kinds of hand-resets of outage type automatically.The type that automatically resets immersion heater can be unattended, and when cooling off after water is boiled, thermal protector can automatically reset again, and water will be heated once more, if so repeatedly repeatedly, will cause the thermos dry combustion method at last, both dangerously also wastes energy.And the manual replacement type immersion heater, complex structure uses also inconvenient.
Summary of the invention
The utility model provides a kind of cost low, easy to use, safe energy-conservation power-off restoration type quick heater in order to solve the problems of the technologies described above.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the utility model comprises the U type electrothermal tube; also comprise the band PTC thermal protector of connecting with the U type electrothermal tube; the two ends of described U type electrothermal tube are fixed on the plastic seat; described band PTC thermal protector is located in the plastic seat, and the power supply line is introduced in the plastic seat and with the series circuit of U type electrothermal tube with band PTC thermal protector and linked to each other.
As preferably, it is that 90 ± 3 ℃, reset temperature are 50 ± 10 ℃ thermal protector that described band PTC thermal protector adopts break-off signal; When described band PTC thermal protector was in on-state, its resistance was less than 0.1 Ω.
As preferably; described band PTC thermal protector comprises lug plate, movable contact spring, conducting strip, static contact, following lug plate; last lug plate and movable contact spring, conducting strip link to each other and are fixed on the bearing by riveting; static contact links to each other by riveted joint with following lug plate; following lug plate links to each other with bearing by rivet with compressing tablet; center bimetal leaf with holes is arranged on the cylinder of bearing, and PTC heating sheet is arranged between described conducting strip and the compressing tablet.
The beneficial effects of the utility model are: during work, because of band PTC thermal protector is in conducting state, two ends do not have operating voltage, and PTC heating sheet does not generate heat, and U type electrothermal tube two ends have rated voltage, U type electrothermal tube heating power.When water burns boiling point, behind the thermal protector temperature-sensitive, the contact automatic disconnection.At this moment since the PTC resistance much larger than the electrothermal tube resistance, PTC two ends have rated operational voltage, PTC heating makes thermal protector remain on normally open, no longer heating of electrothermal tube outage has reached after immersion heater water is boiled the no longer purpose of heating.Have only when pulling out attaching plug, band PTC thermal protector just can reset, and recovers the normal heating function, has reached safety, purpose of energy saving.
Description of drawings
Fig. 1 is a kind of circuit theory diagrams of the present utility model.
Fig. 2 is a kind of structural representation of the present utility model.
Fig. 3 is a kind of structural representation of band PTC thermal protector in the utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the power-off restoration type quick heater of present embodiment; as shown in Figure 1 and Figure 2; comprise U type electrothermal tube 1, band PTC thermal protector 2; U type electrothermal tube 1 and band PTC thermal protector 2 are in series; the two ends of U type electrothermal tube 1 are fixed on the plastic seat 3; band PTC thermal protector 2 is positioned at plastic seat 3, and power supply line 4 is introduced in the plastic seat 3 and with the series circuit of U type electrothermal tube 1 with band PTC thermal protector 2 and linked to each other.
As shown in Figure 3; band PTC thermal protector 2 comprises lug plate 5, movable contact spring 6, conducting strip 7, static contact 8, following lug plate 9; last lug plate 5 and movable contact spring 6, conducting strip 7 link to each other and are fixed on the bearing 10 by riveting; static contact 8 links to each other by riveted joint with following lug plate 9; following lug plate 9 links to each other with bearing 10 by rivet with compressing tablet 11; center bimetal leaf 12 with holes is arranged on the cylinder of bearing 10, and PTC heating sheet 13 is arranged between conducting strip 7 and the compressing tablet 11.
It is that 90 ± 3 ℃, reset temperature are 50 ± 10 ℃ thermal protector that band PTC thermal protector 2 adopts break-off signals.The resistance of PTC heating sheet is 10K Ω, and the resistance of U type electrothermal tube is 50 Ω.When band PTC thermal protector 2 was in on-state, its resistance was less than 0.1 Ω.
The course of work: after the energising; immersion heater is started working; the heating of U type electrothermal tube; when external temperature rises to specified break-off signal; be subjected to the drive of bimetal leaf; movable contact spring separates with static contact; electrothermal tube quits work; electric current conducts to down lug plate and forms path by last lug plate, conducting strip, PTC heating sheet, compressing tablet; rated operational voltage (the PTC resistance is much larger than the electrothermal tube resistance) on the band of PTC heating sheet two ends; the heating of PTC heating sheet makes the thermal protector body temperature remain on it more than reset temperature, and thermal protector remains on normally open.Have only the outer power supply of executing that cuts off the thermal protector two ends, PTC heating sheet stops heating, reduces to reset temperature when following when the thermal protector body temperature, and thermal protector is resetted, and immersion heater is task again, has reached the effect of power-off restoration.
Easy to use, energy-conservation and purpose of safety that the utility model has reached, and manufacturing cost is lower, has strong practicality.

Claims (3)

1. power-off restoration type quick heater; comprise the U type electrothermal tube; it is characterized in that also comprising the band PTC thermal protector of connecting with the U type electrothermal tube; the two ends of described U type electrothermal tube are fixed on the plastic seat; described band PTC thermal protector is located in the plastic seat, and the power supply line is introduced in the plastic seat and with the series circuit of U type electrothermal tube with band PTC thermal protector and linked to each other.
2. power-off restoration type quick heater as claimed in claim 1 is characterized in that it is that 90 ± 3 ℃, reset temperature are 50 ± 10 ℃ thermal protector that described band PTC thermal protector adopts break-off signal; When described band PTC thermal protector was in on-state, its resistance was less than 0.1 Ω.
3. power-off restoration type quick heater as claimed in claim 1; it is characterized in that described band PTC thermal protector comprises lug plate, movable contact spring, conducting strip, static contact, following lug plate; last lug plate and movable contact spring, conducting strip link to each other and are fixed on the bearing by riveting; static contact links to each other by riveted joint with following lug plate; following lug plate links to each other with bearing by rivet with compressing tablet; center bimetal leaf with holes is arranged on the cylinder of bearing, and PTC heating sheet is arranged between described conducting strip and the compressing tablet.
CN2009201898488U 2009-07-23 2009-07-23 Power-off reset type electric immersion heater Expired - Lifetime CN201479404U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201898488U CN201479404U (en) 2009-07-23 2009-07-23 Power-off reset type electric immersion heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201898488U CN201479404U (en) 2009-07-23 2009-07-23 Power-off reset type electric immersion heater

Publications (1)

Publication Number Publication Date
CN201479404U true CN201479404U (en) 2010-05-19

Family

ID=42415659

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201898488U Expired - Lifetime CN201479404U (en) 2009-07-23 2009-07-23 Power-off reset type electric immersion heater

Country Status (1)

Country Link
CN (1) CN201479404U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102364986A (en) * 2011-11-17 2012-02-29 杨丽 Overheat automatic power-off circuit for electric heating bedplate
CN101662856B (en) * 2009-07-23 2012-07-04 浙江富风电器有限公司 Power-off restoration type quick heater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101662856B (en) * 2009-07-23 2012-07-04 浙江富风电器有限公司 Power-off restoration type quick heater
CN102364986A (en) * 2011-11-17 2012-02-29 杨丽 Overheat automatic power-off circuit for electric heating bedplate

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
RGAV Abandon patent right to avoid regrant
AV01 Patent right actively abandoned

Granted publication date: 20100519

Effective date of abandoning: 20090723