CN115316772A - Closely cut hair-dryer of warm - Google Patents
Closely cut hair-dryer of warm Download PDFInfo
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- CN115316772A CN115316772A CN202211120662.3A CN202211120662A CN115316772A CN 115316772 A CN115316772 A CN 115316772A CN 202211120662 A CN202211120662 A CN 202211120662A CN 115316772 A CN115316772 A CN 115316772A
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- module
- electric heating
- distance
- output power
- heating device
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D2200/00—Details not otherwise provided for in A45D
- A45D2200/15—Temperature
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- Cleaning And Drying Hair (AREA)
Abstract
A close-range temperature-cutting blower comprises a distance sensor and a control module. The control module is operated when the electric heating device is started and comprises a distance threshold module, a judging module, an output power conversion module and an electric heating recovery module. The distance threshold module is used for setting a distance threshold range between the shell and the blown object. The judging module is used for judging whether the minimum distance measured by the distance sensor is within the distance threshold range. The output power conversion module is used for increasing or decreasing the output power of the electric heating device when the minimum distance is within the distance threshold range. The electric heating recovery module is used for recovering the rated output power of the electric heating device when the minimum distance is larger than the maximum value of the distance threshold range. When the minimum distance is within the distance threshold range, the blower is considered to be too close to the object to be blown, so that the electric heating closing module changes the output power of the electric heating device, cold air can be blown out to avoid scalding accidents, and hot air can be blown out to carry out quick drying.
Description
Technical Field
The invention relates to the technical field of electric control of hair dryers, in particular to a hair dryer capable of cutting temperature at a short distance.
Background
The blower is composed of a group of electric heating wires and a high-speed small fan. When the electric fan is electrified, the electric heating wire can generate heat, and air blown out by the fan passes through the electric heating wire and is changed into hot air. However, when the existing electric hair dryer blows hot air, the hot air is always blown outwards. When the electric hair dryer blows human hair, especially the tail end of long hair, the long hair is not sensed, the hot air blown by the electric hair dryer can damage the hair, and especially when the electric hair dryer is close to the hair, the temperature of the hot air blown by the electric hair dryer is high, and the hot air can damage the hair. Meanwhile, as for the old or the child, the sensing ability is relatively dull, and when the electric hair dryer is used, if the distance is too close, the skin of the old or the child is injured by hot air. This obviously does not comply with the user's requirements for use and safety.
In addition, when people need to blow a certain article, such as clothes, quickly, and need to approach the article, the temperature of the blown hot air is still very high or even higher, and the existing hair dryer can not meet the requirement, so that the improvement of the use experience of users is not facilitated
Disclosure of Invention
In view of the above, the present invention provides a hair dryer capable of solving the above problems.
A hair drier with close-range temperature cutting function comprises a shell, an electric heating device arranged in the shell, and a fan used for blowing heat generated by the electric heating device to an object to be blown. The close-range temperature-cutting blower further comprises a distance sensor arranged on the shell and a control module for controlling the temperature of the blown air. The distance sensor is used for measuring the minimum distance between the shell and the blown object. The control module is operated when the electric heating device is started and comprises a distance threshold module, a use state switching module, a judgment module, an output power conversion module and an electric heating recovery module. The distance threshold module is used for setting a distance threshold range between the shell and the blown object. The using state switching module is used for switching the using state of the electric heating device. The use state includes a temperature rise and a temperature fall, and only one of the temperature rise and the temperature fall is performed at the same time. The judging module is used for judging whether the minimum distance measured by the distance sensor is within the distance threshold range. The output power conversion module is used for increasing or decreasing the output power of the electric heating device when the minimum distance is within the distance threshold range. The electric heating recovery module is used for recovering the electric heating device to the rated output power when the minimum distance is larger than the maximum value of the distance threshold range.
Furthermore, the shell also comprises an air outlet arranged on the shell, and the heat generated by the electric heating device is blown to the blown object through the air outlet.
Further, the distance sensor is arranged on the air outlet.
Further, the blower with the close-range temperature switching function further comprises a power module arranged on the shell, the electric heating recovery module is turned on when the power module is turned on, and the electric heating recovery device is turned off when the power module is turned off.
Further, the priority of the electrothermal restoration module is smaller than that of the power supply module so as to restore the electrothermal device to the rated output power when the power supply module is started and when the minimum distance is larger than the maximum value of the distance threshold range.
Further, the priority of the output power conversion module is smaller than that of the power supply module so as to increase or decrease the output power of the electric heating device when the power supply module is turned on.
Further, the distance threshold ranges from 0 to 40mm.
Further, the distance threshold range is 4 to 30mm.
Further, the output power conversion module enables the output power of the electric heating device to be 0.
Further, the distance sensor is one of an ultrasonic ranging sensor, a laser ranging sensor, an infrared ranging sensor and a radar ranging sensor.
Compared with the prior art, the blower capable of cutting temperature at a short distance provided by the invention has the distance sensor arranged on the shell, so that the distance between the blower and the object to be blown can be measured at any time. However, in the present invention, the distance sensor needs to measure the minimum distance between the blower and the object to be blown, because by measuring the minimum distance, it is possible to ensure that the output power, i.e., the output heat, of the blower can be changed when the distance is small, and to avoid unnecessary turning off of the blower. The short-distance temperature-cutting blower is provided with a control module, wherein the control module is provided with a distance threshold module, a use state switching module, an output power conversion module and an electric heating recovery module. The use state switching module can select the use state of the blower, such as temperature rise or temperature fall. When the using state switching module uses one of the heating and cooling using states, and when the minimum distance is within the distance threshold range, the blower is considered to be relatively close to the object to be blown, so the output power conversion module increases or decreases the output power of the electric heating module to achieve the purpose of heating or cooling. When the minimum distance is larger than the maximum value of the distance threshold range, the blower is considered to be at a reasonable distance from the blown object, the electric heating recovery module recovers the output power of the electric heating device to the set temperature again, and the blower continues to blow hot air to achieve the purpose of drying or blowing hot the blown object.
Drawings
Fig. 1 is a schematic structural diagram of a blower for close-range cutting and warming provided by the invention.
Figure 2 is a functional block diagram of a control module included in the close-range, cut-to-temperature hair dryer of figure 1.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
Fig. 1 to 2 are schematic block diagrams of a close-range air blower according to the present invention. The close-range temperature-cutting blower is used for controlling the instant opening and instant closing of one blower under certain conditions. The short-range air blower includes a housing 11, an electric heating device 12 disposed in the housing 11, a fan 13 for blowing heat generated by the electric heating device 12 toward an object to be blown, a distance sensor 14 disposed on the housing 11, and a control module 15 for controlling the temperature of the blown air. It is understood that, as a hair dryer, it should also include all functional modules of the hair dryer, such as electrical connection module, assembly and installation module, circuit control module, etc., which are well known to those skilled in the art and will not be described herein.
For the hair dryer, the housing 11 is a prior art, and is not described herein again, and is used for accommodating or accommodating various functional modules, and has a certain shape to facilitate the appearance. The housing 11 includes an air outlet 111 and a power switch module 112 disposed on the housing 11. The air outlet 111 is used for blowing out the heat generated by the electric heating device 12 by the fan 13, so as to blow dry or heat the blown object. The power switch module 112 may include a key or button, which is also known in the art and will not be described herein. The power switch module 112 is used to control the on/off of the power loaded on the electric heating module 12, that is, when the power switch module 12 is turned on, the electric heating device 12 will be in the power-on state, so as to control the working state of the electric heating device 12. When the power switch module 12 is turned off, the electric heating device 12 is in a power-off state and cannot be operated any more.
The electric heating device 12 itself is also a conventional one, and includes an electric control circuit, an electric heating wire, etc. when it is powered on, it starts to work, such as generating heat, and its specific structure and working principle are not described herein again. In the present embodiment, the electric heating device 12 also operates under the control of the control module 15, specifically, under the cooperation of the control module 15 and the power switch module 112.
The fan 13 is also prior art, and is used for blowing out the heat generated by the electric heating device 12 from the air outlet, and the working principle and structure thereof will not be described in detail.
The distance sensor 14 may be disposed on a side of the housing 11 facing the object to be blown, and is configured to detect a distance between the object to be blown and the housing 11. The distance sensor 14 may be one of an ultrasonic ranging sensor, a laser ranging sensor, an infrared ranging sensor, and a radar ranging sensor. In the present embodiment, the distance sensor 14 is an infrared distance measuring sensor, which can measure the distance between the housing 11 and the object to be blown, and particularly, through programming, can measure the minimum distance between the housing 11 and the object to be blown in a period of time. The control module 15 controls the operating state of the energized electric heating module 12 according to the measured minimum distance. Specifically, the distance sensor 14 may be disposed on the outlet 111, so as to more conveniently measure the minimum distance between the housing 11 and the object to be blown.
It is only significant that the control module 15 is operated when the electric heating device 12 is switched on, i.e. the electric heating device 12 is energized. The control module 15 includes a distance threshold module 151, a determination module 152, a use state switching module 153, an output power conversion module 154, and an electrothermal recovery module 155. The entire control module 15 may be implemented by a central processing unit, in which the computer program for implementing the control module 15 is, of course, loaded. For the computer program, as long as a person skilled in the art knows the idea created by the present invention, a program for executing the control module 15 can be compiled by using the existing computer language, and therefore, the detailed description of the program is omitted here. The distance threshold module 151 is configured to set a distance threshold range between the housing 11 and the object to be blown. Specifically, the range is a threshold distance between the outlet 111 of the housing 11 and the object to be blown. Since the hot air is blown out from the outlet 111 of the housing 11, when the distance between the outlet 111 and the object to be blown is too small, the hot air is too close to the outlet 111, which may cause a high temperature of the hot air, thereby causing burning or damage to the object to be blown, such as hair. When the hair dryer is used, the distance between the air outlet 111 and the object to be blown cannot be constant, and the distance can be changed within a range. Therefore, by setting a distance threshold range, that is, when the distance between the air outlet 111 and the blown object falls within the range, it is considered that the distance is too close, the blown object may be scalded or damaged due to too high hot air temperature. The distance threshold may range from 0 to 40mm, preferably from 4 to 30mm, more preferably from 8 to 15mm. That is, as long as the distance between the air inlet 111 and the object to be blown falls within 8 to 15mm, the control module 15 controls the working state of the electric heating device 12 to prevent the blown air from scalding or damaging the object to be blown. Alternatively, when the clothes are to be dried, the temperature of the blower is increased while the blower is close to the clothes, so that the output power of the electric heating module 12 is increased to increase the temperature of the electric wires, thereby increasing the temperature of the blown air. How to control the temperature increase or decrease will be described in detail below.
The determining module 152 is configured to determine whether the minimum distance measured by the distance sensor 14 is within the distance threshold range. Specifically, the determining module 152 compares the minimum distance measured by the distance sensor 14 with the maximum distance within the threshold range to obtain a result of whether the air outlet 111 is too close to the blown object.
The using state switching module 153 is used for switching the using state of the electric heating device 12. The use states include a temperature rise and a temperature fall, and only one of the temperature rise and the temperature fall is performed at the same time. The usage state switching module 153 may include a switch for switching the usage state of the blower, such as heating or cooling. The switch may be a button that, when pressed, causes the hair dryer to operate for a warming operation. When popped up, the blower will perform a cooling operation. Thus, when the electric heating device 12 is turned on, only one use state is performed.
The output power conversion module 154 is configured to increase or decrease the output power of the electro-thermal device 12 when the minimum distance is within the distance threshold range. When the distance between the air outlet 111 of the blower and the object to be blown is smaller than the maximum value of the distance threshold range, the output power conversion module 154 increases or decreases the output power of the electric heating device 12. Specifically, when the use state switching module 153 switches to the temperature increasing state, the output power conversion module 154 increases the output power of the electric heating device 12 to decrease the blow-off temperature of the blower. When the usage state switching module 153 switches to the cooling state, the output power conversion module 154 reduces the output power of the electric heating device 12 to reduce the blowing temperature of the blower, and it is conceivable that the output power conversion module 154 may set the output power of the electric heating device 12 to 0, that is, the blown air is room temperature air.
The electrothermal restoration module 155 is configured to restore the electrothermal apparatus 12 to its rated output power when the minimum distance is greater than the maximum value of the distance threshold range. When the distance between the air outlet 111 of the blower and the object to be blown is greater than the maximum value of the distance threshold range in use, the output power of the electric heating device 12 does not need to be changed, that is, the rated output power of the electric heating device 12 is recovered by the electric heating recovery module 155.
Further, the close-range air blower also comprises a power module 16 arranged on the shell 11. The power module 16 may be a power switch. Thus, the electrothermal restoration module 155 is turned on when the power module 16 is turned on and the electrothermal restoration device 155 is turned off when the power module 16 is turned off. Since the electrothermal restoration module 155 needs to restore the output power of the electrothermal device 12, the electrothermal restoration module 155 may not interfere with the function of the power module 16. Therefore, the priority of the electric heating recovery module 155 is less than that of the power module 16 so as to recover the electric heating device 12 to its rated output power when the power module 16 is turned on and the distance between the air outlet 111 of the blower and the object to be blown is greater than the maximum value of the distance threshold range. Meanwhile, the priority of the output power conversion module 154 is also lower than that of the power supply module to increase or decrease the output power of the electric heating device 12 when the power supply module 16 is turned on.
Compared with the prior art, the blower for close-range temperature cutting provided by the invention has the distance sensor 14 arranged on the shell 11, so that the distance between the blower and the object to be blown can be measured at any time. In the present invention, however, the distance sensor 14 measures the minimum distance between the blower and the object to be blown, since by measuring the minimum distance, it is ensured that the blower can be switched off again when the distance is small, and unnecessary switching off of the blower can be avoided. The close-cut air blower has a control module 15, and the control module 15 has a distance threshold module 151, a use state switching module 153, an output power conversion module 154 and an electrothermal recovery module 155. The usage state switching module 153 may select a usage state of the blower, such as temperature increase or temperature decrease. When the usage state switching module 153 switches to one of the usage states of temperature rising and temperature lowering, and when the minimum distance between the air outlet of the blower and the object to be blown is within the distance threshold range, the blower is considered to be closer to the object to be blown, so the output power conversion module 154 raises or lowers the output power of the electric heating module 12, and the purpose of temperature rising or temperature lowering is achieved. When the minimum distance is greater than the maximum distance threshold range, the blower is considered to be at a reasonable distance from the blown object, and the electric heating recovery module 155 recovers the output power of the electric heating device 12 to the set temperature again, so that the blower continues to blow hot air, and the blown object is dried or heated.
The above description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements and the like within the spirit of the present invention are included in the scope of the appended claims.
Claims (10)
1. A hair dryer for cutting temperature at a short distance, said hair dryer comprising a housing, an electric heating device provided in said housing, and a fan for blowing heat generated by the electric heating device toward an object to be blown, characterized in that: the hair dryer with close-range temperature cut-off further comprises a distance sensor arranged on the shell, and a control module for controlling the temperature of blown-off wind, wherein the distance sensor is used for measuring the minimum distance between the shell and the blown-off object, the control module is operated when the electric heating device is started and comprises a distance threshold value module, a using state switching module, a judging module, an output power conversion module and an electric heating recovery module, the distance threshold value module is used for setting the distance threshold range between the shell and the blown-off object, the using state switching module is used for switching the using state of the electric heating device, the using state comprises temperature rise and temperature fall, only one using state of the temperature rise and the temperature fall is executed at the same time, the judging module is used for judging whether the minimum distance measured by the distance sensor is within the distance threshold range or not, the output power conversion module is used for increasing or decreasing the output power of the electric heating device when the minimum distance is within the distance threshold range, and the electric heating recovery module is used for enabling the electric heating device to recover to the rated output power when the minimum distance is greater than the maximum value of the distance threshold range.
2. A close-cutting hair dryer as claimed in claim 1, wherein: the shell also comprises an air outlet arranged on the shell, and the heat generated by the electric heating device is blown to the blown object through the air outlet.
3. A close-cutting hair dryer as claimed in claim 2, wherein: the distance sensor is arranged on the air outlet.
4. A close-cutting hair dryer as claimed in claim 1, wherein: the close-range temperature-cutting hair drier also comprises a power module arranged on the shell, the electric heating recovery module is started when the power module is started, and the electric heating recovery device is turned off when the power module is turned off.
5. A close-cutting hair dryer as claimed in claim 4, wherein: the priority of the electric heating recovery module is smaller than that of the power supply module so as to enable the electric heating device to recover to the rated output power when the power supply module is started and the minimum distance is larger than the maximum value of the distance threshold range.
6. The close-cutting hair dryer of claim 4, wherein: the priority of the output power conversion module is smaller than that of the power supply module so as to increase or decrease the output power of the electric heating device when the power supply module is started.
7. A close-cutting hair dryer as claimed in claim 1, wherein: the distance threshold ranges from 0 to 40mm.
8. A close-cutting hair dryer as claimed in claim 1, wherein: the distance threshold range is 4 to 30mm.
9. A close-cutting hair dryer as claimed in claim 1, wherein: the output power conversion module enables the output power of the electric heating device to be 0.
10. A close-cutting hair dryer as claimed in claim 1, wherein: the distance sensor is one of an ultrasonic ranging sensor, a laser ranging sensor, an infrared ranging sensor and a radar ranging sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211120662.3A CN115316772A (en) | 2022-09-15 | 2022-09-15 | Closely cut hair-dryer of warm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211120662.3A CN115316772A (en) | 2022-09-15 | 2022-09-15 | Closely cut hair-dryer of warm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115316772A true CN115316772A (en) | 2022-11-11 |
Family
ID=83930337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211120662.3A Pending CN115316772A (en) | 2022-09-15 | 2022-09-15 | Closely cut hair-dryer of warm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115316772A (en) |
-
2022
- 2022-09-15 CN CN202211120662.3A patent/CN115316772A/en active Pending
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