CN203301756U - Electric heater and overheating protection device thereof - Google Patents
Electric heater and overheating protection device thereof Download PDFInfo
- Publication number
- CN203301756U CN203301756U CN2013202778723U CN201320277872U CN203301756U CN 203301756 U CN203301756 U CN 203301756U CN 2013202778723 U CN2013202778723 U CN 2013202778723U CN 201320277872 U CN201320277872 U CN 201320277872U CN 203301756 U CN203301756 U CN 203301756U
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- Prior art keywords
- thermostat
- thermal cut
- mounting groove
- protection system
- temperature controller
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- 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.)
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Abstract
The utility model provides an electric heater and an overheating protection device thereof. The overheating protection device comprises a fabricated section, a temperature controller and a thermal fuse. The fabricated section is provided with a temperature controller mounting groove used for accommodating the temperature controller, and a thermal fuse mounting groove used for accommodating the thermal fuse. The temperature controller is positioned within the temperature induction area of the thermal fuse. The temperature controller is placed within the temperature induction area of the thermal fuse. In this way, when the temperature controller breaks down in itself to cause the temperature to be high, both the faulted condition of the temperature controller itself and the abnormal high-temperature condition around the location of the temperature controller can be timely detected by the thermal fuse. Therefore, the power supply is cut off timely and the occurrence of fire accidents and other extreme events is avoided. Compared with a conventional technical scheme in the prior art, that is, a temperature controller and a thermal fuse are respectively arranged at both sides of a heater, the overheating protection device disclosed by the preferred embodiment of the utility model is higher in safety.
Description
Technical field
The utility model relates to household electrical appliance technical field, specially refers to a kind of electric heater and overtemperature protection system thereof.
Background technology
Along with the development that heats technology, electric heater as a kind of comparatively safe heat utensil by more and more for household electrical appliance, wherein the household electrical appliances such as air-conditioning, warm-air drier are particularly general to quoting of its.
At present; electric heater generally comprises heater and overtemperature protection system thereof; wherein overtemperature protection system comprises thermostat and the thermal cut-off that is separately positioned on the heater both sides; thermostat and thermal cut-off are all the sensers of temperature; thermostat can move when temperature exceeding standard; the loop of cutting off the electricity supply, can automatically restore to normally off after temperature is reduced to preset value, thermal cut-off forever disconnects when overheated.
There is following deficiency in the overtemperature protection system of said structure: when the fault of thermostat own produces high temperature, this moment, thermal cut-off was difficult in time detect the abnormal high temperature of thermostat and position thereof, may cause thus the generation of the extreme events such as fire.
The utility model content
The main purpose of the utility model preferred embodiment is to provide a kind of overtemperature protection system, is intended to improve fail safe.
The utility model embodiment discloses a kind of overtemperature protection system; comprise installed part, thermostat and thermal cut-off; on described installed part, offer the thermostat mounting groove of accommodating described thermostat and the thermal cut-off mounting groove of accommodating described thermal cut-off, and described thermostat is arranged in the temperature sense zone of described thermal cut-off.
Preferably, described thermal cut-off is arranged in the temperature sense zone of described thermostat.
Preferably, the spacing of described thermostat and described thermal cut-off is 0 ~ 5mm.
Preferably, described thermostat is the bimetallic type temperature-sensing element (device).
Preferably, described thermostat mounting groove and described thermal cut-off mounting groove are communicated with.
Preferably, on described installed part, also be provided with and prevent described thermostat from the thermostat spacing preiection that skids off described thermostat mounting groove and prevent the thermal cut-off spacing preiection of described thermal cut-off from skidding off described thermal cut-off mounting groove.
The utility model embodiment also discloses a kind of electric heater, comprises heater and overtemperature protection system, and wherein overtemperature protection system is the overtemperature protection system in above-mentioned arbitrary technical scheme, and described thermostat all is electrically connected to described heater with described thermal cut-off.
Preferably, described heater is ptc heater.
The utility model embodiment discloses a kind of overtemperature protection system; in the temperature sense zone that thermostat is arranged on to thermal cut-off; when the fault of thermostat own produces high temperature; thermal cut-off can in time detect the abnormal high temperature of thermostat and position thereof; and then in time cut off the electricity supply; avoid the generation of the extreme events such as fire; relatively in prior art, thermostat and thermal cut-off are separately positioned on to the technical scheme of the both sides of heater, the disclosed overtemperature protection system of the utility model embodiment has improved fail safe.
The accompanying drawing explanation
Fig. 1 is the front view of overtemperature protection system in the utility model embodiment;
Fig. 2 is the front view of installed part in Fig. 1;
Fig. 3 is the left view of installed part in Fig. 2;
Fig. 4 is the upward view of installed part in Fig. 2;
Fig. 5 is the vertical view of installed part in Fig. 2;
Fig. 6 is the front view of electric heater in the utility model embodiment.
The realization of the utility model purpose, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model embodiment discloses a kind of overtemperature protection system; in conjunction with referring to figs. 1 through Fig. 5; in this embodiment; this overtemperature protection system comprises installed part 1, thermostat 2 and thermal cut-off 3; on this installed part 1, offer thermostat mounting groove 11 and thermal cut-off mounting groove 12; thermostat 2 is installed in thermostat mounting groove 11; thermal cut-off 3 is installed in thermal cut-off mounting groove 12; and thermostat 2 is arranged in the temperature sense zone of thermal cut-off 3, and namely thermal cut-off 3 can be sensed the variations in temperature of thermostat 2 and position thereof.Preferably, thermostat 2 is the bimetallic type temperature-sensing element (device), and namely when temperature surpassed operating value, bimetal leaf moved, and cutoff circuit, after temperature is reduced to a certain degree, recovers automatically.
The disclosed overtemperature protection system of the utility model embodiment; by thermostat 2 being arranged in the temperature sense zone of thermal cut-off 3; when the fault of thermostat 2 own produces high temperature; thermal cut-off 3 can in time detect the abnormal high temperature of thermostat 2 and position thereof; and then in time cut off the electricity supply; avoid the generation of the extreme events such as fire; relatively in prior art, thermostat and thermal cut-off are separately positioned on to the technical scheme of the both sides of heater, the disclosed overtemperature protection system of the utility model embodiment has improved fail safe.
Preferably; thermal cut-off 3 also is arranged in the temperature sense zone of thermostat 2; it is the variations in temperature that thermostat 2 can be sensed thermal cut-off 3 and position thereof; when the fault of thermal cut-off 3 own produces high temperature; thermostat 2 can in time detect the abnormal high temperature of thermal cut-off 3 and position thereof; and then in time cut off the electricity supply, avoid the generation of the extreme events such as fire, improved the fail safe of the disclosed overtemperature protection system of the utility model embodiment.
In specific embodiment, at thermostat 2, be installed in thermostat mounting groove 11 and the state of thermal cut-off 3 in being installed in thermal cut-off mounting groove 12, the spacing of thermostat 2 and thermal cut-off 3 is 0 ~ 5mm, as the spacing of thermostat 2 and thermal cut-off 3 be 0,0.5mm, 1mm, 2mm, 3mm, 4mm or 5mm to be to guarantee can the interact variations in temperature of the other side and position thereof of thermostat 2 and thermal cut-off 3.
Between thermostat mounting groove 11 and thermal cut-off mounting groove 12, have dividing plate so that thermostat 2 and thermal cut-off 3 are separated, namely thermostat mounting groove 11 is two independently spaces with thermal cut-off mounting groove 12.Certainly in a preferred embodiment, thermostat mounting groove 11 is interconnected with thermal cut-off mounting groove 12, and namely thermostat mounting groove 11 and thermal cut-off mounting groove 12 are that two parts in a separate space are to guarantee can the interact variations in temperature of the other side and position thereof of thermostat 2 and thermal cut-off 3.
On the basis of above-mentioned arbitrary embodiment, in order to prevent that thermostat 2 is from skidding off thermostat mounting groove 11, and prevent that thermal cut-off 3 is from skidding off thermal cut-off mounting groove 12, on installed part 1, also be provided with thermostat spacing preiection 13 and thermal cut-off spacing preiection 14, thermostat spacing preiection 13 skids off from thermostat mounting groove 11 for preventing thermostat 2, and thermal cut-off spacing preiection 14 skids off from thermal cut-off mounting groove 12 for preventing thermal cut-off 3.
The utility model embodiment also provides a kind of electric heater; with reference to Fig. 6; in this embodiment; electric heater comprises heater 4 and overtemperature protection system 5; overtemperature protection system 5 is overtemperature protection system in above-mentioned arbitrary embodiment; concrete structure can referring to figs. 1 through in Fig. 5 and above-described embodiment to the text description of thermel protection device, do not repeat them here, thermostat 2 and thermal cut-off 3 all are electrically connected to heater 4.
Because the electric heater in the utility model embodiment comprises the overtemperature protection system in above-mentioned arbitrary embodiment, so it has all advantages of the overtemperature protection system in above-mentioned arbitrary embodiment, as when the fault of thermostat 2 own produces high temperature, thermal cut-off 3 can in time detect the abnormal high temperature of thermostat 2 and position thereof, and then in time cut off the electricity supply, avoid the generation of the extreme events such as fire; When the fault of thermal cut-off 3 own produces high temperature, thermostat 2 can in time detect the abnormal high temperature of thermal cut-off 3 and position thereof, and then in time cut off the electricity supply, avoid the generation of the extreme events such as fire, improved the fail safe of the disclosed electric heater of the utility model embodiment.
Heater in above-described embodiment is ptc heater, but is not limited to ptc heater.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (8)
1. overtemperature protection system; it is characterized in that; comprise installed part, thermostat and thermal cut-off; on described installed part, offer the thermostat mounting groove of accommodating described thermostat and the thermal cut-off mounting groove of accommodating described thermal cut-off, and described thermostat is arranged in the temperature sense zone of described thermal cut-off.
2. overtemperature protection system according to claim 1, is characterized in that, described thermal cut-off is arranged in the temperature sense zone of described thermostat.
3. overtemperature protection system according to claim 2, is characterized in that, the spacing of described thermostat and described thermal cut-off is 0 ~ 5mm.
4. overtemperature protection system according to claim 2, is characterized in that, described thermostat is the bimetallic type temperature-sensing element (device).
5. overtemperature protection system according to claim 2, is characterized in that, described thermostat mounting groove and described thermal cut-off mounting groove are communicated with.
6. the described overtemperature protection system of according to claim 1 to 5 any one; it is characterized in that, on described installed part, also be provided with and prevent described thermostat from the thermostat spacing preiection that skids off described thermostat mounting groove and prevent the thermal cut-off spacing preiection of described thermal cut-off from skidding off described thermal cut-off mounting groove.
7. an electric heater, comprise heater and overtemperature protection system, it is characterized in that, described overtemperature protection system is the described overtemperature protection system of claim 1 to 6 any one, and described thermostat all is electrically connected to described heater with described thermal cut-off.
8. electric heater according to claim 7, is characterized in that, described heater is ptc heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202778723U CN203301756U (en) | 2013-05-20 | 2013-05-20 | Electric heater and overheating protection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202778723U CN203301756U (en) | 2013-05-20 | 2013-05-20 | Electric heater and overheating protection device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301756U true CN203301756U (en) | 2013-11-20 |
Family
ID=49577732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202778723U Expired - Lifetime CN203301756U (en) | 2013-05-20 | 2013-05-20 | Electric heater and overheating protection device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949323A (en) * | 2015-06-25 | 2015-09-30 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
| CN104994603A (en) * | 2015-07-16 | 2015-10-21 | 广东志高空调有限公司 | Electric heating protection system |
-
2013
- 2013-05-20 CN CN2013202778723U patent/CN203301756U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949323A (en) * | 2015-06-25 | 2015-09-30 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
| CN104949323B (en) * | 2015-06-25 | 2018-06-08 | 芜湖美的厨卫电器制造有限公司 | Electric heater and its control method |
| CN104994603A (en) * | 2015-07-16 | 2015-10-21 | 广东志高空调有限公司 | Electric heating protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |