An energy-saving and comfortable hair dryer based on adaptive drive control and its drive control method

Abstract

The present invention discloses an energy-saving and comfortable hair dryer based on adaptive drive control and its drive control method, which relates to the technical field of energy-saving electrical appliances. In the present invention, a ring position sensing member is installed at the ring position groove, and the ring position sensing member is configured with a plurality of infrared probes. A ring position electrothermal member is installed at the air outlet tube groove, and the ring position electrothermal member includes a heat insulation layer, a heat flow channel located inside the heat insulation layer, and a plurality of heating wires arranged in the heat flow channel. The heating wires are distributed in a wavy shape along the axis direction of the ring position electrothermal member. An air duct member is installed in the installation cylinder cavity, and the air duct member includes a clamping pipe body and a ventilation groove located inside the clamping pipe body. One end of the ventilation groove of the air duct member is communicated with the air supply cavity, and the other end is communicated with the heat flow channel of the ring position electrothermal member. The present invention further saves electric energy during the use of the hair dryer, avoids excessive waste of additional electric energy of the hair dryer, and makes the hair dryer more energy-saving, intelligent and user-friendly during use.

Description

Technical Field

[0001] The present invention relates to the technical field of energy-saving electrical appliances, and in particular to an energy-saving and comfortable hair dryer based on adaptive drive control and its drive control method. Background Art

[0002] A hair dryer is a very commonly used household small appliance in people's daily life. Although it is a small appliance, the power of a hair dryer is not small. The power of a common hair dryer is above 1500W, and the power of a commercial hair dryer can reach above 2000W. It can be described as a power-hungry device. When some users use a hair dryer to dry their hair, they may also accidentally do some other things. For example, when drying their hair, they want to get a towel or skin care products without turning off the hair dryer. The hair dryer keeps working, resulting in a significant increase in the time of using the hair dryer for one hair drying, and the waste of electric energy can be imagined. In addition, when people use a hair dryer, the air outlet of the hair dryer is sometimes not completely facing the human head. Some of the hot air blown out by the hair dryer blows on the human head, and some of the air just blows into the "void", wasting a lot of heat energy (in fact, it is also wasting electricity). Therefore, how to further reduce the waste of electric energy during the use of a hair dryer has become a problem to be solved in the energy-saving use of a hair dryer. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an energy-saving and comfortable hair dryer based on adaptive drive control and its drive control method, thereby further saving electric energy during the use of the hair dryer, avoiding excessive waste of additional electric energy of the hair dryer, and making the hair dryer more energy-saving, intelligent and user-friendly during the use process.

[0004] To solve the above technical problem, the present invention is realized through the following technical solutions:

[0005] The present invention provides an energy-saving and comfortable hair dryer based on adaptive drive and control. The hair dryer is configured with a main controller, and the main controller is built-in with a delay module and a position coding module. The hair dryer includes an upper housing, and an air supply chamber, an installation cylinder chamber, and an air outlet are configured in the upper housing. An isolation mesh cover is configured inside the air outlet. An air outlet cylinder groove is configured at a position of the installation cylinder chamber close to the air outlet. The installation cylinder chamber is configured with a plurality of inner clamping blocks located outside the air outlet cylinder groove and an annular groove located outside the inner clamping blocks. An annular position sensing member is installed at the position of the annular groove, and the annular position sensing member is configured with a plurality of infrared probes. An annular position heating element is installed at the position of the air outlet cylinder groove. The annular position heating element includes a heat insulation layer, a heat flow channel located inside the heat insulation layer, and a plurality of heating wires arranged in the heat flow channel. The heating wires are distributed in a wavy shape along the axial line direction of the annular position heating element. Among them, the plurality of heating wires are connected in parallel, and the wave height dimension of the heating wires close to the air outlet is greater than the wave height dimension of the heating wires far from the air outlet. Among them, the number of heating wires is the same as the number of infrared probes, and the positions of the heating wires are aligned with the positions of the infrared probes one by one. An air duct member is installed in the installation cylinder chamber. The air duct member includes a clamping pipe body and a ventilation groove located inside the clamping pipe body. One end of the ventilation groove of the air duct member is communicated with the air supply chamber, and the other end is communicated with the heat flow channel of the annular position heating element. Among them, a temperature sensor is configured at the position where the air supply chamber is communicated with the ventilation groove.

[0006] As a preferred technical solution in the structure of the hair dryer of the present invention: The upper housing is provided with a plurality of detection through holes communicated with the annular groove, and the infrared probes of the annular position sensing member are cooperatively installed at the positions of the detection through holes.

[0007] As a preferred technical solution in the structure of the hair dryer of the present invention: The annular position sensing member includes a plurality of rear support plates, and glue dots are coated in the area where the rear support plates are connected to the inner wall of the upper housing.

[0008] As a preferred technical solution in the structure of the hair dryer of the present invention: The annular position sensing member includes a clamping ring in the inner peripheral area. The clamping ring is circular, and the diameter dimension of the clamping ring matches the position distribution dimension of the plurality of inner clamping blocks.

[0009] As a preferred technical solution in the structure of the hair dryer of the present invention: A clamping end plate is arranged on one side of the clamping pipe body and the heat flow channel. The clamping end plate is configured with a first bayonet for clamping and cooperating with the heat insulation layer of the annular position heating element and a second bayonet for clamping and cooperating with the inner clamping blocks.

[0010] As a preferred technical solution in the structure of the hair dryer of the present invention: The air outlet and the isolation mesh cover are circular. The radial dimensions of the air outlet, the isolation mesh cover, and the heat flow channel are the same. The isolation mesh cover is made of a non-metallic material.

[0011] As a preferred technical solution in the structure of the hair dryer of the present invention: The position coding module of the main controller is a position coding module that matches and stores the distribution position information of a plurality of infrared probes and a plurality of heating wires.

[0012] The present invention provides a driving and controlling method for a hair dryer, and the main content is as follows:

[0013] Step 1: Hot start stage

[0014] Start the hair dryer and the hot air switch. The air supply cavity supplies air to the ventilation slot and the heat flow channel. The temperature sensor senses and detects the temperature of the air flow entering the ventilation slot , and the minimum heating power of a single heating wire is preset in the main controller , and the maximum heating power . Let the real-time heating power of a single heating wire be , then . .

[0015] Step 2: Infrared dynamic detection

[0016] All infrared probes of the ring position sensing component perform infrared detection. Let the position information be The infrared probe senses and detects the human body infrared signal, and let any position information be The infrared probe does not sense and detect the human body infrared signal;

[0017] Step 3: Regional linearized power control

[0018] Let the main controller analyze the position information and the position information The number of infrared probes that do not sense and detect the human body infrared signal between the closest position points . Let the real-time heating power of a single heating wire The distance attenuation coefficient is , then . .

[0019] The heating wire aligned with the position of the infrared probe that senses and detects the human body infrared signal is heated according to the heating power , and the heating wire aligned with the position of the infrared probe that does not sense and detect the human body infrared signal is heated according to the heating power , where .

[0020] Step 4: Time-domain heating control

[0021] When all infrared probes do not sense and detect the human body infrared signal, the delay module in the main controller starts timing. During the timing of the delay module, if all infrared probes still do not sense and detect the human body infrared signal, the main controller stops the heating of all heating wires. When there is any infrared probe that senses and detects the human body infrared signal, the main controller drives and controls the heating wires to start heating again.

[0022] Compared with the existing technologies, the beneficial effects of the present invention are as follows:

[0023] By configuring multi-point infrared probes on the hair dryer, analyzing the positional state relationship between the hair dryer and the human body (head) through the infrared probes, and controlling the power of the heating wire independently through regional linear power control, the present invention controls the hot air blowing in a position-matching and linkage manner for the human body (head) area and the area near the human body (head), further saving electric energy during the use of the hair dryer, and disconnecting the heating of the heating wire when the user does not use the hair dryer, avoiding excessive waste of additional electric energy of the hair dryer, making the hair dryer more energy-saving, intelligent and user-friendly during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall hair dryer in the present invention.

[0025] Figure 2 It is a combined installation schematic diagram of the circumferential position sensing component, circumferential position heating component and air duct component in the present invention.

[0026] Figure 3 It is a component separation schematic diagram of the upper shell, circumferential position sensing component, circumferential position heating component and air duct component in the present invention.

[0027] Figure 4 It is a schematic diagram of the distribution positions of infrared probe detection and heating wire heating in the present invention.

[0028] Wherein: 1 - hair dryer, 101 - upper shell, 102 - air supply cavity, 103 - installation cylinder cavity, 104 - air outlet cylinder groove, 105 - circumferential position groove, 106 - detection through hole, 107 - air outlet, 108 - isolation mesh cover, 109 - inner clamping block; 2 - circumferential position sensing component, 201 - snap ring, 202 - infrared probe, 203 - rear support plate; 3 - circumferential position heating component, 301 - heat insulation layer, 302 - heating wire, 303 - heat flow channel; 4 - air duct component, 401 - clamping pipe body, 402 - ventilation groove, 403 - clamping end plate, 4031 - first bayonet, 4032 - second bayonet; 5 - temperature sensor; 6 - dispensing block; 7 - main controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0030] Embodiment 1. The present invention relates to an energy-saving and comfortable hair dryer based on adaptive drive control, and the main structural features of the hair dryer are as follows:

[0031] Please refer to Figure 1, inside the hair dryer 1: There is a main controller 7 installed. The main controller 7 is configured with a delay module and a position coding module. The delay module is used to output a driving control signal for another action after a countdown triggered by a signal. The position coding module matches and stores the distribution position information of multiple infrared sensors 202 and multiple heating wires 302.

[0032] Inside the upper housing 101 of the hair dryer 1, there is an air supply chamber 102 and an installation cylinder chamber 103. The front end of the upper housing 101 is an air outlet 107. An isolation mesh cover 108 is arranged inside the air outlet 107. The air outlet 107 and the isolation mesh cover 108 are circular in shape. The radial dimensions of the air outlet 107, the isolation mesh cover 108, and the heat flow channel 303 are the same. The isolation mesh cover 108 is made of a non-metallic material, which can reduce the heat absorption of the isolation mesh cover 108, reduce the attenuation of the outgoing air heat, and also avoid scalding when accidentally touched.

[0033] There is a fan in the air supply chamber 102. After the fan is started, the fan blows the external air flow towards the ventilation slot 402 and the heat flow channel 303. A temperature sensor 5 is arranged at the position where the air supply chamber 102 communicates with the ventilation slot 402. The temperature sensor 5 senses and detects the temperature of the air flow blown into the air supply chamber 102.

[0034] Please refer to Figure 3 , the installation cylinder chamber 103 is provided with an air outlet cylinder slot 104, the air outlet cylinder slot 104 is close to the air outlet 107. The installation cylinder chamber 103 is provided with an annular position groove 105 and multiple inner clamping blocks 109. The inner clamping blocks 109 are located outside the air outlet cylinder slot 104, and the annular position groove 105 is located outside the inner clamping blocks 109. The upper housing 101 is provided with multiple detection through holes 106, and the detection through holes 106 communicate with the annular position groove 105.

[0035] Please refer to Figure 2 、 Figure 3 , the annular position sensing member 2 is installed at the position of the annular position groove 105. The annular position sensing member 2 includes a clamping ring 201 in the inner peripheral area, and the clamping ring 201 is circular. The annular position sensing member 2 is configured with multiple infrared sensors 202 (it can be seen from Figure 4 that the multiple infrared sensors 202 are annularly distributed). The infrared sensors 202 of the annular position sensing member 2 are cooperatively installed at the positions of the detection through holes 106.

[0036] The multiple inner clamping blocks 109 are annularly distributed, and the formed size matches the diameter size of the clamping ring 201. The annular position sensing member 2 passes through the multiple inner clamping blocks 109 through the clamping ring 201, and then is clamped at the position of the annular position groove 105.

[0037] The ring position sensor 2 is provided with a plurality of rear support plates 203. The area where the rear support plates 203 are connected to the inner wall of the upper housing 101 is coated with glue blocks 6. The glue blocks 6 can quickly fix the positions of the rear support plates 203, that is, fix the position of the ring position sensor 2. Under the condition of the limited thickness of the upper housing 101, there is no need to drill screw holes and install screws, reducing costs.

[0038] The ring position electric heating element 3 is installed in the air outlet duct groove 104 area. The ring position electric heating element 3 includes a heat insulation layer 301, a heat flow channel 303, and a plurality of electric heating wires 302. The heat flow channel 303 is located inside the heat insulation layer 301. A plurality of electric heating wires 302 are arranged in the heat flow channel 303. The electric heating wires 302 are in a wavy shape and are distributed along the axial line direction of the ring position electric heating element 3.

[0039] The plurality of electric heating wires 302 are connected in parallel with each other and can be independently controlled and adjusted for current. The height of the wave of the electric heating wire 302 is larger closer to the position of the air outlet 107. This is because the air flow in the heat flow channel 303 needs to continuously absorb and accumulate heat (with some heat loss) to reach a certain temperature when blowing out at the air outlet 107. When the air flow just enters the heat flow channel 303, if it is directly heated at a high temperature at the beginning, more heat will be lost during the forward process. Therefore, the wavy shape of the electric heating wire 302 is designed to be higher and higher, starting to heat up the air flow when it enters the heat flow channel 303. When it reaches the end, the air flow temperature reaches the maximum and the heat loss is relatively small.

[0040] The air duct member 4 includes a clamping pipe body 401, a ventilation groove 402, and a clamping end plate 403. The ventilation groove 402 is located inside the clamping pipe body 401. One end of the ventilation groove 402 of the air duct member 4 is communicated with the air supply cavity 102, and the other end is communicated with the heat flow channel 303 of the ring position electric heating element 3.

[0041] The clamping end plate 403 is located on one side end of the clamping pipe body 401 and faces the heat flow channel 303. The clamping end plate 403 is provided with a first bayonet 4031 and a second bayonet 4032. The first bayonet 4031 is in clamping fit with the heat insulation layer 301 of the ring position electric heating element 3, and the second bayonet 4032 is in clamping fit with the inner clamping block 109.

[0042] Please refer to Figure 2 、 Figure 4 , the number of the electric heating wires 302 and the infrared probes 202 is the same, and the positions of the plurality of electric heating wires 302 and the plurality of infrared probes 202 are aligned one by one.

[0043] Embodiment 2: The present invention relates to a driving and control method for the energy saving and comfort of a hair dryer. The specific content of the driving and control method is as follows:

[0044] First, turn on the hair dryer 1 and the hot air switch. The air supply cavity 102 supplies air to the ventilation groove 402 and the heat flow channel 303. The temperature sensor 5 senses and detects the temperature of the air flow entering the ventilation groove 402. , the minimum heating power of a single heating wire is preset in the main controller 7. , and the maximum heating power. , let the real-time heating power of a single heating wire 302 be , then , .

[0045] Then, all the infrared probes 202 of the ring position sensing component 2 perform infrared detection. Let the position information be The infrared probe 202 senses and detects the human body infrared signal, and let any position information be The infrared probe 202 does not sense and detect the human body infrared signal.

[0046] The main controller 7 analyzes the position information and the position information The number of infrared probes 202 that do not sense and detect the human body infrared signal between the closest position points in . For example Figure 4 In, for the infrared probe 202 at the highest point position, = 1. For the infrared probe 202 at the second highest point position, = 0.

[0047] Let the distance attenuation coefficient of the real-time heating power of a single heating wire 302 be , then , . For example = 0, is 0.85; = 1, is 0.7; = 2, is 0.55, or other corresponding linearized proportional adjustment relationships, which are not listed one by one in the present invention.

[0048] The heating wire 302 aligned with the position of the infrared probe 202 that senses and detects the human body infrared signal is heated according to the heating power , and the heating wire 302 aligned with the position of the infrared probe 202 that does not sense and detect the human body infrared signal is heated according to the heating power Heat is applied. That is, the heating wire 302 facing the human body (head) area is heated at the normal heating power, and the hot air passing through these heating wires 302 is blown towards the human head area. For the heating wire 302 not facing the human body (head) area, according to the distance relationship, the farther the distance, the lower the heating power. In the present invention, the heating wire 302 not facing the human body (head) area is not directly stopped from heating. One reason is to ensure that the overall heat of the heat flow channel reaches a certain state. The other reason is that the humid gas emitted by the human body (head) itself and the moisture blown out by the hot air float near the human body (head). The heating wire 302 not facing the human body (head) area provides a certain degree of heat to enhance the dehumidification intensity of the humid air floating near the human body (head) and reduce the degree of inhibition of the humid air floating near the human body (head) on the moisture emitted by the human body (head).

[0049] In addition, , that is to say, as long as the heating wire 302 is heated, the minimum heating power can only reach .

[0050] During the use of the hair dryer, in case one: when all the infrared sensors 202 do not sense and detect the human body infrared signal, the delay module in the main controller 7 starts timing. During the timing of the delay module, if all the infrared sensors 202 still do not sense and detect the human body infrared signal, the main controller 7 stops the heating of all the heating wires.

[0051] In case two: when any one of the infrared sensors 202 senses and detects the human body infrared signal, the main controller 7 drives and controls the heating wire 302 to start heating again. For example, when blowing hair, originally blowing hair, and then needing to do something else, the hair dryer 1 is casually placed aside without turning it off. As a result, the hair dryer 1 has been waiting for the owner to use it again. After two or three minutes, the owner finishes the things in hand (the owner originally expected to solve the things in 20 seconds, but didn't anticipate well) and then picks up the hair dryer 1 to continue blowing hair. The hot air has been coming out for these two or three minutes, which is too wasteful of electricity. The present invention makes use of local materials. Through the infrared sensor 202 and the delay module, for example, when the owner casually places the hair dryer 1 aside, after 10 seconds, the mode of continuously emitting hot air is switched to the mode of only blowing air by the blower, which is more power-saving.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An energy-saving and comfortable hair dryer based on adaptive drive and control. The hair dryer (1) is configured with a main controller (7). The main controller (7) is built-in with a delay module and a position coding module. The hair dryer (1) includes an upper housing (101). Inside the upper housing (101), there are an air supply chamber (102), an installation cylinder chamber (103), and an air outlet (107). Inside the air outlet (107), there is an isolation mesh cover (108). Characterized in that: An air outlet cylinder groove (104) is arranged at a position of the installation cylinder chamber (103) close to the air outlet (107). The installation cylinder chamber (103) is configured with a plurality of inner clamping blocks (109) located outside the air outlet cylinder groove (104) and an annular position groove (105) located outside the inner clamping blocks (109). An annular position sensing member (2) is installed at the position of the annular position groove (105). The annular position sensing member (2) is configured with a plurality of infrared probes (202). An annular position electric heating member (3) is installed at the position of the air outlet cylinder groove (104). The annular position electric heating member (3) includes a heat insulation layer (301), a heat flow channel (303) located inside the heat insulation layer (301), and a plurality of electric heating wires (302) arranged in the heat flow channel (303). The electric heating wires (302) are distributed in a wavy shape along the axial line direction of the annular position electric heating member (3). Among them, the plurality of electric heating wires (302) are connected in parallel with each other. The wave height dimension of the electric heating wire (302) close to the air outlet (107) is greater than the wave height dimension of the electric heating wire (302) far from the air outlet (107). Among them, the number of the electric heating wires (302) is the same as the number of the infrared probes (202), and the positions of the electric heating wires (302) are aligned with the positions of the infrared probes (202) one by one. An air duct member (4) is installed in the installation cylinder chamber (103). The air duct member (4) includes a clamping pipe body (401) and a ventilation groove (402) located inside the clamping pipe body (401). One end of the ventilation groove (402) of the air duct member (4) is communicated with the air supply chamber (102), and the other end is communicated with the heat flow channel (303) of the annular position electric heating member (3). Among them, a temperature sensor (5) is arranged at the position where the air supply chamber (102) is communicated with the ventilation groove (402).

2. The energy-saving and comfortable hair dryer based on adaptive drive and control according to claim 1, Characterized in that: The upper housing (101) is provided with a plurality of detection through holes (106) communicated with the annular position groove (105). The infrared probes (202) of the annular position sensing member (2) are cooperatively installed at the positions of the detection through holes (106).

3. The energy-saving and comfortable hair dryer based on adaptive drive and control according to claim 1, Characterized in that: The annular position sensing member (2) includes a plurality of rear support plates (203). An adhesive block (6) is coated on the area where the rear support plates (203) are connected to the inner wall of the upper housing (101).

4. The energy-saving and comfortable hair dryer based on adaptive drive and control according to claim 1, Characterized in that: The ring position sensing component (2) includes a snap ring (201) in the inner peripheral area. The snap ring (201) is circular, and the diameter dimension of the snap ring (201) matches the position distribution dimension of a plurality of inner clamping blocks (109).

5. An energy-saving and comfortable hair dryer based on adaptive drive control according to claim 1, characterized in that: A clamping end plate (403) is provided on one side of the clamping pipe body (401) and the heat flow channel (303). The clamping end plate (403) is configured with a first bayonet (4031) that is clamped and matched with the heat insulation layer (301) of the ring position heating element (3), and a second bayonet (4032) that is clamped and matched with the inner clamping block (109).

6. An energy-saving and comfortable hair dryer based on adaptive drive control according to claim 1, characterized in that: The air outlet (107) and the isolation mesh cover (108) are circular. The radial dimensions of the air outlet (107), the isolation mesh cover (108), and the heat flow channel (303) are the same. The isolation mesh cover (108) is made of a non-metallic material.

7. An energy-saving and comfortable hair dryer based on adaptive drive control according to claim 1, characterized in that: The position coding module of the main controller (7) matches and stores the distribution position information of a plurality of infrared probes (202) and a plurality of heating wires (302).

8. A drive control method for a hair dryer, characterized in that, using an energy-saving and comfortable hair dryer based on adaptive drive control according to any one of claims 1 to 7, including the following link contents: Link 1, hot start stage Turn on the hair dryer (1) and the hot air switch. The air supply cavity (102) supplies air to the ventilation groove (402) and the heat flow channel (303). The temperature sensor (5) senses and detects the temperature of the air flow entering the ventilation groove (402). , and the minimum heating power of a single heating wire is preset in the main controller (7). , the maximum heating power . Let the real-time heating power of a single heating wire (302) be , then , ; Link 2, infrared dynamic detection All infrared probes (202) of the ring position sensing component (2) perform infrared detection; Suppose the position information is The infrared probe (202) senses and detects a human body infrared signal, and suppose any position information is The infrared probe (202) does not sense and detect a human body infrared signal; Link 3, regional linearized power control Let the main controller (7) analyze the position information and the position information the number of infrared sensors (202) that do not sense the human body infrared signal between the position points closest to the distance in , let the real-time heating power of a single electric heating wire (302) The distance attenuation coefficient of is , ; The heating wire (302) aligned with the position of the infrared probe (202) that senses and detects the human body infrared signal is heated according to the heating power The heating wire (302) aligned with the position of the infrared probe (202) that does not sense and detect the human body infrared signal is heated according to the heating power wherein ; Link 4, time-domain heating control When all infrared probes (202) do not sense and detect a human body infrared signal, the delay module in the main controller (7) starts timing. During the timing of the delay module, if all infrared probes (202) still do not sense and detect a human body infrared signal, the main controller (7) stops heating all heating wires; When any one of the infrared probes (202) senses and detects a human body infrared signal, the main controller (7) drives and controls the heating wires (302) again to start heating.

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