Hand pressure sensing high-speed blower

Abstract

The utility model relates to a hand pressure sensing high-speed hair drier which comprises an air nozzle assembly, a machine body assembly and a handle, and the handle comprises an insulating handle shell, a pressure sensing chip circuit board assembly arranged in the handle shell and a soft rubber pad. The soft rubber pad is clamped between the inner wall of the handle shell and a pressure sensing chip of the pressure sensing chip circuit board assembly and makes close contact with the inner wall of the handle shell and the pressure sensing chip. The pressure sensing chip circuit board assembly is electrically connected with a main control chip circuit board assembly of the hair drier; when the hair drier is used by holding the handle with a hand, the pressure of the hand is transmitted to the sensing chip circuit board assembly through the soft rubber mat, when the hand is separated from the handle, the pressure value changes, and the main control chip circuit board assembly receives a pressure value change signal and controls the working state of the hair drier. Therefore, the use safety of the high-speed blower is effectively ensured, and the use comfort is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hair drying device, especially a hand pressure induction high-speed hair dryer. BACKGROUND

[0002] The high-speed hair dryer is a kind of personal care product that blows dry hair moisture and hair styling, and the hair dryer generally includes a nozzle assembly and a body assembly, and its principle is to set a high-speed fan assembly in the air duct of the body assembly, and a main control chip circuit board assembly controls a heating body assembly arranged in front of the high-speed fan assembly, when the high-speed fan assembly operates, the motor blade inhales gas from the air inlet of the air duct and then blows it to the heating body assembly, and a powerful cold or warm airflow is generated at the air outlet of the nozzle assembly to quickly blow dry hair moisture and hair styling.

[0003] When the high-speed hair dryer is forgotten to be turned off and is placed on a table or a countertop, if there is an obstacle in front of the air outlet of the high-speed hair dryer, the powerful airflow and high temperature generated by the operation of the hair dryer may ignite the obstacle and cause a fire, which has a great safety hazard. To solve this problem, the prior art generally adopts a method of turning off the power of the hair dryer when the temperature is too high. However, this method will also turn off the power of the hair dryer at regular intervals during normal use, which is inconvenient for users. SUMMARY

[0004] The utility model solves the technical problem that the safety hazard of the prior art hair dryer is avoided and proposes a hand pressure induction high-speed hair dryer.

[0005] The utility model adopts the technical scheme to solve the technical problem: the handle includes a handle shell, a pressure induction chip circuit board assembly arranged in the handle shell and a soft rubber pad, the soft rubber pad is clamped between the inner wall of the handle shell and the pressure induction chip of the pressure induction chip circuit board assembly, and is in close contact with both, the pressure induction chip circuit board assembly is electrically connected with the main control chip circuit board assembly of the hair dryer,

[0006] The main control chip circuit board assembly is arranged in the inner cavity of the main body shell of the body assembly, away from the bottom shell side of the main body shell of the air outlet,

[0007] When the hair dryer is held by a hand and the handle is used, the pressure of the hand is conducted to the pressure induction chip of the induction chip circuit board assembly through the soft rubber pad in the handle shell, when the hand is separated from the handle, the pressure value changes, the main control chip circuit board assembly receives the pressure induction chip circuit board assembly and sends the pressure value change signal to the main control chip circuit board assembly, and controls the working state of the hair dryer.

[0008] Furthermore,

[0009] The soft rubber pad has an arc surface structure matched with the inner wall of the handle shell on one side and a plane structure matched with the surface of the pressure sensing chip on the other side.

[0010] The handle shell is internally provided with a through air duct, and the air duct is internally provided with a high-speed fan assembly; the air outlet of the air duct is communicated with the air inlet of the body assembly, and the air inlet of the air duct faces the air inlet component at the lower end of the handle.

[0011] The air duct is formed by buckling the air duct left shell and the air duct right shell; the air duct and the high-speed fan assembly are in interference fit, so that the high-speed fan assembly is fastened in the air duct.

[0012] The soft rubber pad and the pressure sensing chip circuit board assembly are located between the inner wall of the handle shell and the outer wall of the air duct.

[0013] The air duct is located below the high-speed fan assembly and is surrounded by sound-absorbing cotton on the inner wall close to the air inlet of the air duct.

[0014] The pressure sensing chip circuit board assembly comprises a gear switch and a temperature control button.

[0015] The heating assembly of the body assembly is arranged in the cavity of the main body shell of the body assembly, close to the air outlet side; and the main control chip circuit board assembly is arranged on the bottom shell side of the main body shell away from the air outlet.

[0016] Compared with the prior art, the hand pressure sensing high-speed hair dryer has the advantages that the use safety hazard of the high-speed hair dryer is effectively avoided, the operation is easy, the use comfort is improved, the manufacturing process is simple, the installation and production are easy, and the manufacturing cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the front projection main view schematic diagram of the hand pressure sensing high-speed hair dryer in the preferred embodiment of the utility model;

[0018] Figure 2 is the front projection left view schematic diagram of the hand pressure sensing high-speed hair dryer in the preferred embodiment of the utility model;

[0019] Figure 3 is the axonometric projection schematic diagram of the hand pressure sensing high-speed hair dryer when the handle shell is removed in the preferred embodiment of the utility model;

[0020] Figure 4 is the front view schematic diagram of the hand pressure sensing high-speed hair dryer in the preferred embodiment of the utility model, and the arrow in the figure indicates the flow direction of the air;

[0021] Figure 5 is the front view schematic diagram of the hand pressure sensing high-speed hair dryer in the preferred embodiment of the utility model, and the arrow in the figure indicates the flow direction of the air;

[0022] Figure 6 is the sectional view of the soft rubber pad of the handle of the hand pressure sensing high-speed hair dryer in the preferred embodiment of the utility model;

[0023] Figure 7 is the explosion schematic view of the air nozzle assembly 10 and the body assembly 20 of the hand pressure sensing high-speed hair dryer in the preferred embodiment of the utility model;

[0024] Figure 8 is the explosion schematic view of the handle 30 and the air inlet component 40 of the hand pressure sensing high-speed hair dryer in the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0025] The preferred embodiment of the utility model will be described in detail in combination with the drawings.

[0026] Referring to Figures 1 to 3 , a hand pressure sensing high-speed hair dryer comprises an air nozzle assembly 10, a body assembly 20 and a handle 30. The air nozzle assembly 10 is installed at the air outlet of the body assembly 20; the upper end of the handle 30 is connected to the body assembly 20; and the lower end of the handle 30 is connected to the air inlet component 40.

[0027] Referring to Figure 4 and Figure 7 , the body assembly 20 comprises a main body shell 201, a magnetic iron ring 202, a heating body support 203, a heating body support sealing ring 204, a heating body assembly 205, a main control chip circuit board support 206, a main control chip circuit board assembly 207, a display lamp plate assembly 208, a rear cover sealing ring 209 and a rear cover 210 accommodated in the cavity of the main body shell 201. The magnetic iron ring is arranged at the air outlet of the main body shell 201. The heating body assembly 205 is fixed at the side close to the air outlet through the heating body support 203. The main control chip circuit board assembly 207 is installed at the side of the rear cover 210 through the main control chip circuit board support 206. An airflow passage is left between the heating body assembly 205 and the main body shell 201.

[0028] Referring to Figures 3 to 8 , the handle 30 is a hand pressure sensing handle, which comprises an insulated handle shell 321, a soft rubber pad 311, sound-absorbing cotton 312, a left air duct shell 313, a high-speed fan assembly 314, a right air duct shell 315, a sealing pad 316, a pressure sensing chip circuit board assembly 317, a button support 318, a button 319 and a safety isolation frame 320.

[0029] The left air duct shell 313 and the right air duct shell 315 are buckled and fixed to form an air duct 324 through buckles, screws and the like, and are arranged in the inner cavity of the handle shell 321. The high-speed fan assembly 314 is arranged in the inner cavity of the air duct formed by the left air duct shell 313 and the right air duct shell 315. The air duct and the high-speed fan assembly 314 are fastened through interference fit.

[0030] The pressure sensing chip circuit board assembly 317 mainly includes a gear switch, a temperature control button and a pressure sensing chip; the pressure sensing chip circuit board assembly 317 can be fixed on the outer surface of the air duct formed by the air duct left shell 313 and the air duct right shell 315 through adhesives, screws, buckles or adhesive tape; the rubber pad 311 is tightly attached to the pressure sensing chip of the pressure sensing chip circuit board assembly 317 on one side, and is tightly attached to the inner wall of the handle shell on the other side; the soft rubber pad 311 is made of silicone, TPE soft rubber, rubber soft rubber, PVC soft rubber and other plastic soft rubber, has good stretchability, and can better fit the pressure sensing chip and the inner side of the handle shell, so that the pressure sensing is more accurate.

[0031] The switch button 319 is arranged on the hand pressure sensing handle 30, the button bracket 318 is fixed on the air duct shell by buckling or screwing, and the switch button 319 is fixed on the button bracket 318 by buckling, and the switch button 319 is electrically connected to the pressure sensing chip circuit board assembly 317.

[0032] The handle shell 321 of the handle 30 made of insulating material is sleeved on the air duct formed by the air duct left shell 313 and the air duct right shell 315 by buckling or screwing; the air outlet of the air duct is communicated with the air inlet of the body assembly 10, and the air inlet of the air duct is directed to the air inlet at the lower end of the handle shell; the inner wall of the air inlet of the air duct is surrounded by the sound absorbing cotton 312, and the safety isolation frame 320 with a through hole is installed on the air inlet.

[0033] The air inlet component 40 is provided with a mesh, which is communicated with the air duct through the air inlet bracket 422, and the air inlet net shell 425 is sleeved on the air inlet bracket 422 and connected with the handle shell as a whole; the air inlet net shell 425 is provided with a ventilation mesh.

[0034] Referring to Figure 6The soft rubber pad 311 of the hand pressure sensing handle 30 is clamped between the pressure sensing chip of the pressure sensing chip circuit board assembly 317 and the inner surface of the handle shell; one side of the soft rubber pad 311 is an arc surface structure matched with the inner wall of the handle shell 321, and the other side is a plane structure matched with the surface of the pressure sensing chip. The soft rubber pad 311 is in close contact with the handle shell inner wall and the pressure sensing chip of the pressure sensing chip circuit board assembly 317. Such contact assembly not only reduces the space, but also increases the sensitivity of the outer wall surface of the handle shell 321. When a person holds the handle 30, a certain pressure value is applied to the handle shell 321 and the soft rubber pad 311 on the inner wall of the handle shell 321. The pressure value changes when the person holds and releases the handle. The change of the pressure value is transmitted to the pressure sensor of the pressure sensing chip circuit board assembly 317 through the soft rubber pad 311, and the change of the pressure value is converted into an electrical signal. The main control chip circuit board assembly 207 processes the electrical signal to determine whether the pressure value is sensed. If the pressure value is sensed, the hair dryer is powered on. If the pressure value is not sensed, the hair dryer is automatically powered off.

[0035] The hair dryer in the example works as follows: first, the switch button 319 is opened. When a person holds the handle of the hair dryer, a pressure is formed between the handle and the soft rubber pad 311 inside the handle, and the pressure value changes. The change of the pressure value is detected by the pressure sensing chip sensor of the pressure sensing chip circuit board assembly 317 and converted into an electrical signal. The electrical signal is transmitted to the main control chip circuit board assembly 207 for processing. If the pressure value is determined, the heating element assembly 205 and the high-speed motor assembly are powered on and work. The fan of the high-speed fan assembly 314 works to suck air from the air inlet mesh of the air inlet net housing 425 of the air inlet component 40, blow the air to the heating element assembly 205 of the fan assembly through the air duct 324, and blow out strong cold or warm air flow from the air outlet 226 to quickly dry the hair or other things. When the person releases the handle, the change of the pressure value is also transmitted to the main control chip circuit board assembly 207 for processing. If the human body is determined to be out of contact (pressure) action, i.e. the hand is not sensed, the heating element assembly 205 and the high-speed motor assembly are automatically powered off and stopped working.

[0036] The technical solution disclosed in the example can effectively avoid the safety hazard of the high-speed hair dryer, is easy to operate, improves the use comfort, and has simple manufacturing process, easy installation and production, and low manufacturing cost.

[0037] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments, or replace some technical features with equivalent ones; and these modifications and replacements should all belong to the protection scope of the claims of the present application.

Claims

1. A hand pressure sensing high-speed hair dryer, comprising a nozzle assembly, a body assembly and a handle, the nozzle assembly being connected to an air outlet of the body assembly, and the handle being connected to the body assembly; characterized in that: the handle comprises a handle shell, a pressure sensing chip circuit board assembly arranged in the handle shell, and a soft rubber pad; the soft rubber pad is clamped between an inner wall of the handle shell and a pressure sensing chip of the pressure sensing chip circuit board assembly, and is in close contact with both; the pressure sensing chip circuit board assembly is electrically connected with a master control chip circuit board assembly of the hair dryer; the master control chip circuit board assembly is arranged in a cavity of a main body shell of the body assembly, away from a bottom shell side of the main body shell which is away from the air outlet; when the hair dryer is used by holding the handle with a hand, the pressure of the hand is conducted to the pressure sensing chip of the pressure sensing chip circuit board assembly through the soft rubber pad in the handle shell, and when the hand is separated from the handle, the pressure value changes, the master control chip circuit board assembly receives a signal of the change of the pressure value sent by the pressure sensing chip circuit board assembly, and controls the working state of the hair dryer.

2. The hand pressure sensing high-speed hair dryer according to claim 1, characterized in that: one side of the soft rubber pad is an arc surface structure matched with the inner wall of the handle shell, and the other side is a plane structure matched with the outer surface of the pressure sensing chip.

3. The hand pressure sensing high-speed hair dryer according to claim 1, characterized in that: a through air duct is arranged in the handle shell, and a high-speed fan assembly is arranged in the air duct; an air outlet of the air duct is communicated with an air inlet of the body assembly, and an air inlet of the air duct is directed to an air inlet component at a lower end of the handle.

4. The hand pressure sensing high-speed hair dryer according to claim 3, characterized in that: the air duct is formed by a left air duct shell and a right air duct shell; the air duct and the high-speed fan assembly are in interference fit, so that the high-speed fan assembly is fastened in the air duct.

5. The hand pressure sensing high-speed hair dryer according to claim 3, characterized in that: the soft rubber pad and the pressure sensing chip circuit board assembly are located between the inner wall of the handle shell and the outer wall of the air duct.

6. The hand pressure sensing high-speed hair dryer according to claim 3, characterized in that: sound-absorbing cotton is wrapped around the inner wall near the air inlet of the air duct below the high-speed fan assembly.

7. The hand pressure sensing high-speed hair dryer according to claim 1, characterized in that: the pressure sensing chip circuit board assembly comprises a gear switch and a temperature control button.

8. The hand pressure sensing high-speed hair dryer according to claim 1, characterized in that: a heating assembly of the body assembly is arranged in a cavity of the main body shell of the body assembly, near the air outlet side. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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