CN217785288U - Anti-overheating electric heater - Google Patents
Anti-overheating electric heater Download PDFInfo
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- CN217785288U CN217785288U CN202220954684.9U CN202220954684U CN217785288U CN 217785288 U CN217785288 U CN 217785288U CN 202220954684 U CN202220954684 U CN 202220954684U CN 217785288 U CN217785288 U CN 217785288U
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- electric heating
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- 238000013021 overheating Methods 0.000 title claims abstract description 15
- 238000005485 electric heating Methods 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000012080 ambient air Substances 0.000 claims description 3
- 239000003570 air Substances 0.000 description 11
- 238000001035 drying Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 206010000369 Accident Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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Abstract
The application relates to an anti-overheating electric heater, including: the temperature detection device comprises an electric heating assembly, a temperature detection assembly, a front shell and a rear shell; the temperature detection assembly is arranged above the electric heating assembly; the temperature detection assembly includes: the device comprises an assembling rod and N temperature sensors; the temperature sensors are distributed on the assembling rod along the length direction of the assembling rod. Because temperature detect component sets up in electric heating assembly top, when electric heater surface temperature was too high, the higher air of temperature rose, and whether the temperature that temperature detect component can sense the air on electric heater surface in time was higher than the early warning temperature threshold value, if, then the electric heater carries out power-off protection. Meanwhile, each temperature sensor detects the air temperature of a plurality of positions on the surface of the electric heating assembly respectively, and the situation that whether the local temperature is higher than the early warning temperature threshold value or not cannot be determined due to the fact that the local temperature is far away from the temperature sensors on the surface of the electric heating assembly is prevented.
Description
The present application claims the benefit of chinese application No. 2022203031586, filed on 15/2/2022, each of which is incorporated herein by reference in its entirety.
Technical Field
The application relates to an electric heater control technical field especially relates to prevent overheated electric heater.
Background
In actual life, the electric heater is as the domestic heating electrical apparatus who commonly uses, and the user can hang the clothes and put on the electric heater surface for the fast drying clothes, utilizes the temperature of electric heater to carry out the heating stoving.
And in the electric heater product on the market, in order to simplify the structure of electric heater, temperature-detecting device generally sets up in the side casing of electric heater heating plate. However, when the user covers the clothes at a position far away from the temperature detection device, the temperature detection device cannot sense the local high temperature on the surface of the electric heater heating sheet in time, and thus the clothes catch fire due to the high temperature, which causes a fire accident.
Therefore, in order to prevent the surface of the heating sheet of the electric heater from generating local high temperature, the temperature detection device is further away from the local high temperature and cannot trigger power-off protection in time, and an anti-overheating electric heater needs to be designed urgently.
Disclosure of Invention
For overcoming the problem that exists among the correlation technique, this application provides an anti-overheating electric heater, includes: the temperature detection device comprises an electric heating assembly 1, a temperature detection assembly 2, a front shell 3 and a rear shell 4;
the front shell 3 and the rear shell 4 are respectively arranged at two opposite ends of the electric heating component 1 along the horizontal direction;
the temperature detection assembly 2 is arranged above the electric heating assembly 1;
the temperature detection assembly 2 includes: an assembly rod 21 and N temperature sensors 22; n is an integer greater than or equal to 2;
both ends of the assembling rod 21 are respectively abutted against the front shell 3 and the rear shell 4; the temperature sensors 22 are distributed along the length of the mounting rod 21.
In one embodiment, the temperature sensor 22 is disposed on the mounting bar 21.
In one embodiment, the mounting rod 21 is a hollow tube, and the temperature sensor 22 is disposed within the hollow tube.
In one embodiment, the mounting bar 21 is rectangular in cross-section.
In one embodiment, a plurality of temperature detection through holes (23) are provided below the hollow pipe.
In one embodiment, the electric heating assembly 1 comprises a radiator and a temperature control circuit; the heat sink is used for heat transfer to ambient air;
the temperature control circuit is respectively and electrically connected with the temperature detection component 2 and the radiator; the temperature control circuit is used for controlling the temperature of the radiator.
In one embodiment, the heat sink is an oil-filled heat sink.
In one embodiment, the oil filled radiator includes: the heating device comprises a heating resistor and at least two oil heater type radiating fins; the planes of the oil heater type radiating fins are arranged in parallel, and the planes of the oil heater type radiating fins are perpendicular to the assembling rod 21;
the interior of the oil heater type radiating fins is hollowed to be filled with heat conduction oil, and the oil heater type radiating fins are connected through heat conduction oil pipelines;
the heating resistor is arranged in the oil heater type radiating fin and is in contact with the heat conduction oil.
In one embodiment, the heat sink can also be an electrothermal film heat sink; the electric heating film of the radiator is electrically connected with the temperature control circuit.
The technical scheme provided by the application can comprise the following beneficial effects:
in real life, the user can place the clothes on the electric heater for drying in order to dry the clothes quickly. The application provides a pair of prevent overheated electric heater includes: electric heating element, temperature-detecting component, preceding shell and backshell. Because temperature detect component sets up in electric heating assembly top, when electric heater surface temperature was too high, the higher air of temperature rose, and whether the temperature that temperature detect component can sense the air on electric heater surface in time was higher than the early warning temperature threshold value, if, then the electric heater carries out power-off protection. Simultaneously, N temperature sensor along the length direction distribution of assembly rod set up on the assembly rod, consequently, each temperature sensor detects the air temperature of electric heating assembly surface a plurality of positions respectively, prevents that the too high local temperature in electric heating assembly surface from being higher than the early warning temperature threshold value because far away and unable this local temperature of confirming of temperature sensor.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the application.
Fig. 1 is a schematic structural diagram of an anti-overheating electric heater shown in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a mounting rod of an overheating prevention electric heater according to an embodiment of the present application;
fig. 3 is a schematic cross-sectional structure view of the mounting bar shown in fig. 2.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Example one
When the user covers the clothes on the surface of the electric heater for drying the clothes, the heat on the surface of the electric heater rises sharply, possibly causing the electric heater to generate overheating fault or causing the clothes to be burnt. Therefore, damage or fire accident of the electric heater due to heat dissipation incapability can be prevented. The embodiment of the application provides an anti-overheating electric heater.
Fig. 1 is a schematic structural diagram of an overheat prevention electric heater shown in an embodiment of the present application.
Referring to fig. 1, an anti-overheating electric heater according to an embodiment of the present application includes: the temperature detection device comprises an electric heating assembly 1, a temperature detection assembly 2, a front shell 3 and a rear shell 4;
the front shell 3 and the rear shell 4 are respectively arranged at two opposite ends of the electric heating component 1 along the horizontal direction;
the temperature detection assembly 2 is arranged above the electric heating assembly 1;
the temperature detection assembly 2 includes: an assembly rod 21 and N temperature sensors 22; n is an integer greater than or equal to 2;
both ends of the assembling rod 21 in the length direction thereof abut against the front case 3 and the rear case 4, respectively; the temperature sensors 22 are distributed on the mounting rod 21 along the length direction of the mounting rod 21.
In real life, the user can place the clothes on the electric heater for drying in order to dry the clothes quickly. The embodiment of the application provides a prevent overheated electric heater includes: electric heating element, temperature-detecting component, preceding shell and backshell. Because temperature detect component sets up in electric heating assembly top, when electric heater surface temperature was too high, the higher air of temperature rose, and whether the temperature that temperature detect component can sense the air on electric heater surface in time was higher than the early warning temperature threshold value, if, then the electric heater carries out power-off protection. Simultaneously, N temperature sensor along the length direction distribution of assembly rod set up on the assembly rod, consequently, each temperature sensor detects the air temperature of electric heating assembly surface a plurality of positions respectively, prevents that the too high local temperature in electric heating assembly surface from being higher than the early warning temperature threshold value owing to far away and unable this local temperature of confirming from temperature sensor.
Example two
Based on embodiment one, because temperature detect assembly sets up in the electric heater top, and in actual life, when the user hung the clothes and put in the electric heater top, moist clothes probably leads to temperature detect assembly to take place the short circuit, consequently, this application embodiment provides an anti-overheating electric heater.
Fig. 1 is a schematic structural diagram of an anti-overheating electric heater shown in an embodiment of the present application.
As shown in fig. 1, an overheat prevention electric heater provided in the embodiment of the present application includes: the temperature detection device comprises an electric heating assembly 1, a temperature detection assembly 2, a front shell 3 and a rear shell 4;
the front shell 3 and the rear shell 4 are respectively arranged at two opposite ends of the electric heating assembly 1 along the horizontal direction;
the temperature detection assembly 2 is arranged above the electric heating assembly 1;
the temperature detection assembly 2 includes: an assembly rod 21 and N temperature sensors 22; n is an integer greater than or equal to 2;
both ends of the assembling rod 21 in the length direction thereof abut against the front case 3 and the rear case 4, respectively; the temperature sensors 22 are distributed on the mounting rod 21 along the length direction of the mounting rod 21.
In practical application, because temperature detect assembly sets up in electric heating assembly top, when electric heater surface temperature was too high, the higher air of temperature rose, and whether the temperature that temperature detect assembly can in time sense the air on electric heater surface was higher than the early warning temperature threshold value, if yes, then the electric heater carries out power-off protection.
Meanwhile, in order to prevent the temperature detection assembly from being touched by wet clothes to cause short circuit. As shown in fig. 1, a partially enlarged view in fig. 1 is a longitudinal sectional view of the fitting rod 21.
In the embodiment of the present application, as shown in fig. 2 and 3, the mounting rod 21 is a hollow pipe, and the temperature sensor 22 is disposed in the hollow pipe.
In the embodiment of the present application, the temperature sensor 22 is disposed on the mounting rod 21.
Specifically, the temperature sensors 22 are disposed inside the hollow pipe and distributed along the length direction of the hollow pipe.
Specifically, as shown in fig. 3, the cross section of the mounting rod 21 is rectangular.
Preferably, the temperature sensors 22 are disposed inside the hollow pipe in a uniformly distributed manner along the length direction of the hollow pipe.
In the embodiment of the present application, in order to ensure that the temperature sensor can contact the outside air, as shown in fig. 2, a plurality of temperature detection through holes 23 are provided below the hollow pipe (or N temperature detection through holes 23 are provided on a side wall of the hollow pipe close to the electric heating module 1). Meanwhile, in the direction perpendicular to the hollow pipe, the position of the temperature detection through hole 23 corresponds to the temperature sensor 22 one by one, that is, the projection position of the temperature sensor 22 in the direction perpendicular to the hollow pipe coincides with the position of the temperature detection through hole 23.
In this application embodiment, when the electric heater was hung by the user and put the clothes and take place local temperature when too high, the too high air of electric heating element 1 surface temperature can rise and reach the assembly pole to in getting into the inside hollow out construction of assembly pole from the temperature detection through-hole, make the inside temperature sensor of assembly pole can in time judge the too high air of temperature.
Further, the electric heating assembly 1 comprises a radiator for heat transfer to the ambient air.
Illustratively, the radiator is an oil-filled radiator, and the oil-filled radiator includes: the heating resistor and the at least two oil heater type radiating fins; the planes of the oil heater type radiating fins are arranged in parallel, and the planes of the oil heater type radiating fins are perpendicular to the assembling rod 21; the interior of the oil heater type radiating fins is hollowed to be filled with heat conduction oil, and the oil heater type radiating fins are connected through a heat conduction oil pipeline; the heating resistor is arranged in the oil heater type radiating fin and is in contact with the heat conduction oil.
Illustratively, the heat sink is an electrothermal film type heat sink; the electric heating film of the radiator is electrically connected with the temperature control circuit.
It should be noted that, the specific heating manner of the electric heater provided in the embodiment of the present application does not constitute a limitation on the present solution.
Further, the electric heating assembly 1 further comprises a temperature control circuit.
In order to meet the requirement of drying clothes of a user, in the embodiment of the application, the temperature control circuit is respectively and electrically connected with the temperature detection assembly 2 and the radiator; when the temperature that temperature sensor detected reached early warning temperature threshold value for the first time, temperature control circuit reduced electric heating element's output reached the cooling for a predetermined time, avoided the electric heater programming rate too fast, caused wool fabric local temperature too high, and other positions temperature is crossed lowly, influences user's dry clothing effect.
When the output power of the electric heating assembly is reduced and reaches the preset cooling time, the temperature sensor detects whether the temperature reaches the early warning temperature threshold value again, if so, the output power of the electric heating assembly is reduced to zero, and power-off protection is carried out, so that the clothes are prevented from catching fire or the electric heater is prevented from generating high-temperature faults.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or improvements to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. The utility model provides a prevent overheated electric heater which characterized in that includes: the temperature detection device comprises an electric heating assembly (1), a temperature detection assembly (2), a front shell (3) and a rear shell (4);
the front shell (3) and the rear shell (4) are respectively arranged at two opposite ends of the electric heating component (1) along the horizontal direction;
the temperature detection assembly (2) is arranged above the electric heating assembly (1);
the temperature detection assembly (2) comprises: an assembly rod (21) and N temperature sensors (22); n is an integer greater than or equal to 2;
two ends of the assembling rod (21) are respectively abutted against the front shell (3) and the rear shell (4); the temperature sensors (22) are distributed along the length direction of the assembling rod (21).
2. An anti-overheating electric heater according to claim 1, characterised in that said temperature sensor (22) is arranged on said mounting rod (21).
3. An anti-overheating electric heater according to claim 1, characterised in that said assembling rod (21) is a hollow pipe, said temperature sensor (22) being arranged in said hollow pipe.
4. An electric heater according to claim 3, characterised in that the cross-section of the mounting rod (21) is rectangular.
5. The electric heater of claim 3, wherein the first and second electrodes are electrically connected to each other,
a plurality of temperature detection through holes (23) are formed below the hollow pipeline.
6. An anti-overheating electric heater according to claim 1, characterised in that said electric heating assembly (1) comprises: a heat sink and a temperature control circuit;
the radiator is used for carrying out heat transfer on ambient air; the temperature control circuit is respectively and electrically connected with the temperature detection component (2) and the radiator; the temperature control circuit is used for controlling the temperature of the radiator.
7. The electric heater of claim 6 wherein the heat sink is an oil filled heat sink.
8. The electric heater of claim 7, wherein the heat sink comprises: the heating device comprises a heating resistor and at least two oil heater type radiating fins;
the planes of the oil heater type radiating fins are arranged in parallel, and the planes of the oil heater type radiating fins are perpendicular to the assembling rod (21);
the interior of the oil heater type radiating fins is hollowed to be filled with heat conduction oil, and the oil heater type radiating fins are connected through a heat conduction oil pipeline;
the heating resistor is arranged in the oil heater type radiating fin and is in contact with the heat conduction oil.
9. The electric heater of claim 6, wherein the heat sink is an electrothermal film heat sink; the electric heating film of the radiator is electrically connected with the temperature control circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022203031586 | 2022-02-15 | ||
| CN202220303158 | 2022-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217785288U true CN217785288U (en) | 2022-11-11 |
Family
ID=83906793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220954684.9U Active CN217785288U (en) | 2022-02-15 | 2022-04-24 | Anti-overheating electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217785288U (en) |
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2022
- 2022-04-24 CN CN202220954684.9U patent/CN217785288U/en active Active
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