Rechargeable multifunctional hair dryer

Abstract

The utility model discloses a charging type multifunctional hair dryer which comprises a hair dryer body and an air outlet head detachably connected with the hair dryer body, and an air making assembly and a heating assembly are arranged in the hair dryer body. The wind generating assembly comprises a driving motor and fan blades mounted on an output shaft of the driving motor; the heating assembly comprises an electric heating wire heating frame and a ceramic heat storage body embedded in the electric heating wire heating frame, a cross-shaped body extending in the axial direction is integrally formed in an inner cavity of the electric heating wire heating frame, the ceramic heat storage body is provided with a cross-shaped groove in interference fit with the cross-shaped body, and the windward end face of the ceramic heat storage body is equally divided into four air guide parts through the cross-shaped groove. And each air guide part is provided with a fluid channel penetrating through the axis of the ceramic heat storage body. The utility model provides a rechargeable multifunctional hair dryer which has a dual heat storage function, and the heat efficiency can be greatly improved. Meanwhile, the airflow speed loss and the air duct turbulence coefficient are reduced, multiple purposes are achieved, and the requirements of different use scenes are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to hair dryer technical field, concretely relates to a charging type multifunctional hair dryer. BACKGROUND

[0002] Hair dryer is a kind of small household appliance that can introduce outside air into its inside and heat air to dry hair, commonly used for hairdressing and daily care of hair etc.

[0003] Current commercially available hair dryer generally adopts the following technical scheme:

[0004] ‌Heating structure: taking metal heating body (such as nickel-chromium alloy heating wire) as core, hot air is realized by air flow directly contacting heating wire, but there are problems of uneven heat distribution, heat loss with air flow quickly, high wind tunnel turbulence coefficient and high energy consumption etc.

[0005] ‌Function design: most products only provide single hair drying function, and part of high-end models realize style change through external air nozzle, which has single function and cannot maintain good use experience for a long time. INVENTION CONTENTS

[0006] In view of the deficiencies of prior art, the utility model provides a charging type multifunctional hair dryer, which has double heat storage function, heat efficiency can be greatly improved, airflow speed loss and wind tunnel turbulence coefficient are reduced, one machine is realized to serve multiple purposes, and different use scene requirements are met.

[0007] To achieve the above purpose, the utility model realizes the following technical scheme:

[0008] A charging type multifunctional hair dryer, comprising a hair dryer main body and a blow head detachably connected with the hair dryer main body, wherein the hair dryer main body is internally provided with a wind making assembly and a heating assembly; the wind making assembly comprises a driving motor and a fan blade installed on the output shaft of the driving motor; the heating assembly comprises a heating wire heating frame and a ceramic heat storage body nested in the heating wire heating frame; the inner cavity of the heating wire heating frame is integrally formed with a cross body extending along the axial direction; the ceramic heat storage body is provided with a cross groove in interference fit with the cross body, the cross groove equally divides the windward end face of the ceramic heat storage body into four air guide parts, and each air guide part is provided with a fluid passage penetrating the axial line of the ceramic heat storage body.

[0009] Further, the fluid passage is an equal-diameter flow channel structure or a tapered flow channel structure, and the passage aperture of the tapered flow channel structure linearly decreases from the air inlet end to the air outlet end along the air flow direction.

[0010] Further, the blow head is a replaceable functional head, comprising a blow cover and an electric heating comb.

[0011] Further, the air outlet head and the hair dryer body are fixed through a detachable connecting structure, the detachable connecting structure comprises a plurality of assembly grooves which are uniformly distributed on the inner side surface of the hair dryer inner shell, a plurality of assembly blocks which are uniformly distributed on the outer side surface of the air outlet head connecting part, and a switch assembly arranged on the outer side surface of the hair dryer inner shell; the assembly blocks and the assembly grooves are in clamping cooperation, and the switch assembly controls the locking or separation of the assembly blocks and the assembly grooves through mechanical linkage.

[0012] Further, the hair dryer inner shell is composed of an upper shell and a lower shell which are arranged in a pair of shells, the connecting block of the upper shell is provided with a clamping groove, the assembly surface of the lower shell is provided with a convex body matched with the clamping groove, and the outer side surface of the upper shell is provided with a circuit board mounting structure composed of a plurality of connecting columns.

[0013] Further, the outer side surface of the lower shell is provided with a mounting groove for arranging the switch assembly, the inner side surface of the lower shell is provided with a plurality of supporting blocks, and the supporting surface of the plurality of supporting blocks and the bottom surface of the extension part of the fixing block form supporting cooperation.

[0014] Further, the switch assembly comprises a fixed block and a movable block, the lower parts of the fixed block and the movable block are provided with extension parts extending to both sides, the fixed block is fixedly arranged in the mounting groove, and the bottom surface of the extension part abuts against the supporting surface of the supporting block; the extension part of the movable block is movably arranged on the extension part of the fixed block, and the top surface of the extension part and the inner side surface of the lower shell form sliding cooperation;

[0015] The opposite sides of the fixed block and the movable block are provided with positioning shafts, and the outer parts of the two positioning shafts are jointly sleeved with a reset spring, and the reset spring abuts against the fixed block and the movable block, respectively;

[0016] The other side of the movable block is provided with a stop part, the stop part is completely outside the periphery of the assembly groove in the reset state, and the stop part stops the assembly block; the upper part of the movable block is provided with a push block for driving the movable block to move.

[0017] Further, the hair dryer body is internally provided with a charging battery seat, the charging battery seat is internally provided with a rechargeable lithium battery, the rechargeable lithium battery is electrically connected with a driving motor to provide power supply; the bottom of the hair dryer body is provided with a charging socket matched with the charging battery seat.

[0018] Further, the outer side surface of the hair dryer body is provided with an electronic display screen connected with the circuit board, a cold air key, a heating key and a total power switch; the electronic display screen is integrated in front of the circuit board mounting structure of the upper shell; the cold air key, the heating key and the total power switch are arranged transversely along the outer side surface of the upper shell, and are signal connected with the circuit board through a flexible circuit.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1、Electric heating wire heating frame and ceramic heat storage body matching structure realizes double heat storage function, heat efficiency is improved by 15-20%. Four equal parts of air guide part cooperate with axial fluid channel to form directional air guide system, air flow speed loss is reduced by 18-25%, and air duct turbulence coefficient is reduced by 40%. Cross groove assembly structure improves the installation stability of ceramic heat storage body, and the impact resistance is improved by 30%, which effectively prevents the ceramic heat storage body from cracking. The detachable ceramic heat storage body is convenient for cleaning and maintenance, and the service life of the heating assembly is prolonged by more than 50%.

[0021] 2、The air outlet head is a replaceable functional head, including a blowing cover and an electric heating comb. One machine with multiple functions is realized, the blowing cover is suitable for conventional blowing, and the electric heating comb realizes heating and styling by directly heating the comb teeth while combing. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The charging type multifunctional hair dryer (blowing cover) structure diagram is shown;

[0023] Figure 2 The charging type multifunctional hair dryer (blowing cover) structure diagram is shown;

[0024] Figure 3 The charging type multifunctional hair dryer (electric heating comb) structure diagram is shown;

[0025] Figure 4 The charging type multifunctional hair dryer (electric heating comb) exploded assembly structure diagram is shown;

[0026] Figure 5 The electric heating wire heating frame structure diagram is shown;

[0027] Figure 6 The electric heating wire heating frame and ceramic heat storage body exploded assembly structure diagram is shown;

[0028] Figure 7 The electric heating comb structure diagram is shown;

[0029] Figure 8 The hair dryer inner shell structure diagram is shown;

[0030] Figure 9 The hair dryer inner shell exploded assembly structure diagram is shown;

[0031] Figure 10 The hair dryer inner shell structure diagram is shown;

[0032] Figure 11 The hair dryer inner shell structure diagram is shown;

[0033] Figure 12 The charging type multifunctional hair dryer internal structure diagram is shown;

[0034] Figure 13 The switch assembly structure diagram is shown.

[0035] In the figure: 1, hair dryer body; 2A, hair dryer cover; 2B, electric hot comb; 3, circuit board; 4, electronic display screen; 5, cold air key; 5A, assembly groove; 5B, assembly block; 6, heating key; 7, switch assembly; 8, charging battery holder; 9, charging socket; 10, main power switch; 11, hair dryer inner shell; 12, fixing piece; 13, air inlet cover; 41, electric heating wire heating frame; 42, ceramic heat storage body; 43, fixing frame; 411, cross body; 421, cross groove; 422, air guide part; 423, fluid channel; 111, upper shell; 112, lower shell; 1111, connecting block; 1112, clamping groove; 1113, connecting column; 1121, assembly surface; 1122, convex body; 1123, mounting groove; 1124, supporting block; 71, fixed block; 72, movable block; 73, return spring; 711, extension; 712, positioning shaft; 721, extension; 722, positioning shaft; 723, stop portion; 724, push block. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Referring to Figures 1-13 The present application provides a technical solution: a charging type multifunctional hair dryer, comprising a hair dryer body 1 and a detachable air outlet head connected thereto, and a wind making assembly and a heat making assembly are arranged inside the hair dryer body 1; the wind making assembly comprises a driving motor and a fan blade mounted on the output shaft of the driving motor; the heat making assembly comprises an electric heating wire heating frame 41 and a ceramic heat storage body 42 nested inside the electric heating wire heating frame 41, and the electric heating wire heating frame 41 is integrally formed with a cross body 411 extending in the axial direction in the inner cavity, and the ceramic heat storage body 42 is provided with a cross groove 421 in interference fit with the cross body 411, the cross groove 421 equally divides the windward end face of the ceramic heat storage body 42 into four air guide parts 422, and each air guide part 422 is provided with a fluid channel 423 penetrating the axis of the ceramic heat storage body 42.

[0038] The cooperation structure of the ceramic heat storage body 42 and the electric heating wire heating frame 41 realizes double heat storage function, and the thermal efficiency is increased by 15-20%. The four-equal-part air guide part 422 cooperates with the axial fluid passage 423 to form a directional air guide system, the air flow speed loss is reduced by 18-25%, and the air duct turbulence coefficient is reduced by 40%. The cross groove 421 assembly structure improves the installation stability of the ceramic heat storage body 42, the impact resistance is increased by 30%, and the ceramic heat storage body 42 is effectively prevented from cracking. The detachable ceramic heat storage body 42 is convenient for cleaning and maintenance, and the service life of the heating assembly is prolonged by more than 50%.

[0039] Referring to Figures 1-4 As shown in the figure, the air outlet head is a replaceable functional head, including a blowing cover 2A and an electric heating comb 2B. One machine with multiple functions is realized, and the blowing cover 2A is suitable for conventional hair blowing. The blowing cover 2A can be a flat nozzle structure or a round head structure. Each comb tooth on the electric heating comb 2B is provided with a through hole communicating with the outside, and the hot air or cold air generated by the hair dryer can be blown out through the through hole to realize hair styling by combing and blowing hot air at the same time.

[0040] Referring to Figures 5-6 As shown in the figure, the electric heating wire heating frame 41 is externally sleeved with a fixing frame 43, and the electric heating wire heating frame 41 is stably and centrally installed in the hair dryer main body 1 through the fixing frame 43; in this embodiment, the fluid passage 423 can be designed as an equal-diameter flow channel structure or a tapered flow channel structure. The aperture of the tapered flow channel structure decreases linearly along the airflow direction from the air inlet end to the air outlet end. The equal-diameter flow channel structure of the fluid passage 423 can maintain the stability of the airflow, and the tapered flow channel can accelerate the airflow by linearly decreasing the aperture to increase the air outlet speed, thereby meeting the requirements of different use scenarios, such as fast drying or styling.

[0041] Referring to Figures 7-8 As shown in the figure, the air outlet head and the hair dryer main body 1 are fixed through a detachable connection structure. The detachable connection structure includes a plurality of assembly grooves 5A evenly distributed on the inner side surface of the hair dryer inner shell 11, a plurality of assembly blocks 5B evenly distributed on the outer side surface of the air outlet head connecting part 21, and a switch assembly 7 arranged on the outer side of the hair dryer inner shell 11. The assembly block 5B and the assembly groove 5A form a clamping connection, and the switch assembly 7 controls the locking or separation of the assembly block 5B and the assembly groove 5A through mechanical linkage. The clamping connection of the assembly block 5B and the assembly groove 5A combined with the mechanical linkage of the switch assembly 7 realizes the one-handed operation and replacement of the air outlet head, thereby improving the user experience. The locking control of the switch assembly 7 on the assembly block 5B ensures the anti-vibration and anti-falling ability of the air outlet head under high-speed airflow.

[0042] Referring to Figures 8-11As shown, the inner shell 11 of the hair dryer is composed of an upper shell 111 and a lower shell 112 that are fitted together. A fixing member 12 is also provided at the front end of the inner shell 11, which is snap-fitted to the inner shell 11, further securing the upper shell 111 and the lower shell 112. The connecting block 1111 of the upper shell 111 has a slot 1112, and the mounting surface 1121 of the lower shell 112 has a protrusion 1122 that mates with the slot 1112. The outer side of the upper shell 111 has a circuit board mounting structure composed of several connecting posts 1113. The upper shell 111 and the lower shell 112 are connected by the slot 1112 and the protrusion 1122, simplifying the assembly process and reducing production complexity. The circuit board mounting structure composed of the connecting posts 1113 provides a stable circuit board mounting position, avoiding poor contact caused by loose internal wiring.

[0043] The lower housing 112 has a mounting groove 1123 on its outer side for mounting the switch assembly 7. The inner side of the lower housing 112 has several support blocks 1124, whose support surfaces form a supporting fit with the bottom surface of the extension 711 of the fixing block 71. The mounting groove 1123 and the support blocks 1124 are designed to integrate the switch assembly 7 onto the outer side of the lower housing 112, saving internal space and avoiding interference with the heating / air conditioning components. The supporting fit of the support blocks 1124 on the extension 711 of the fixing block 71 disperses mechanical stress during switch operation, extending the structural lifespan.

[0044] See Figures 8-11 , Figure 13 As shown, the switch assembly 7 includes a fixed block 71 and a movable block 72. The lower parts of both the fixed block 71 and the movable block 72 are provided with extensions 711 and 721 extending to both sides. The fixed block 71 is fixed in the mounting groove 1123, and the bottom surface of its extension 711 abuts against the support surface of the support block 1124. The extension 721 of the movable block 72 is movably disposed on the extension 711 of the fixed block 71, and the top surface of the extension 721 forms a sliding fit with the inner side surface of the lower housing 112.

[0045] The fixed block 71 and the movable block 72 are respectively provided with positioning shafts 712 and 722 on the opposite side. The two positioning shafts 712 and 722 are jointly fitted with a return spring 73, which abuts against the fixed block 71 and the movable block 72 respectively.

[0046] On the other side of the movable block 72, there is a stop 723. When the stop 723 is in the reset state, it is completely outside the assembly groove 5A and stops the assembly block 5B to prevent the assembly block 5B from accidentally coming out and to ensure a stable connection. The upper part of the movable block 72 is provided with a push block 724 to drive its movement. The movable block 72 is driven to move by the push block 724. The reset spring 73 provides an automatic reset function. The air outlet can be disassembled with one click, which is convenient to operate.

[0047] When the movable block 72 is pushed to move to the side of the fixed block 71, the reset spring 73 is compressed, the stop portion 723 exits the assembly groove 5A position, so that the air outlet head is disassembled. It should be noted that after the stop portion 723 exits the assembly groove 5A, the air outlet head is rotated by a small distance, and the assembly block 5B can be smoothly detached from the assembly groove 5A. If a new air outlet head is assembled, align the assembly block 5B to enter the assembly groove 5A, and then rotate the air outlet head by a small distance, then loosen the switch assembly 7, the reset spring 73 resets, the movable block 72 is away from the fixed block 71, the stop portion 723 returns to the periphery of the assembly groove 5A, and the assembly block 5B is stopped, preventing the air outlet head from being turned over to cause the assembly block 5B to be accidentally detached; the switch assembly 7 only stops one assembly block 5B to achieve locking, as long as the position is not unlocked, the remaining assembly blocks 5B are in the assembly groove 5A.

[0048] Referring to Figure 4 , Figure 12 As shown in the figure, the hair dryer body 1 is internally provided with a charging battery seat 8, and the charging battery seat 8 is internally provided with a rechargeable lithium battery. The rechargeable lithium battery is electrically connected with the driving motor 31 to provide power supply; the bottom of the hair dryer body 1 is provided with a charging socket 9 matched with the charging battery seat 8, and the charging socket 9 is connected with the rechargeable lithium battery through a terminal to realize charging.

[0049] The outer side of the hair dryer body 1 is provided with an electronic display screen 4 connected with the circuit board 3, a cold air key 5, a heating key 6 and a total power switch 10; the electronic display screen 4 is integrated in front of the circuit board mounting structure of the upper shell 111, and is used to display information such as cold air position, hot air position, power, wind speed and running mode; the cold air key 5, the heating key 6 and the total power switch 10 are arranged transversely along the outer side surface of the upper shell 111, and are signal connected with the circuit board 3 through a flexible circuit, and the number 13 in the figure is an air inlet cover, which can introduce external air into the hair dryer.

[0050] The basic use steps of the present charging type multifunctional hair dryer are as follows:

[0051] ‌I. Basic use steps

[0052] ‌Charging preparation;

[0053] Insert the charging socket 9 into the charging interface at the bottom of the hair dryer body 1, and connect the external power supply. Observe the power icon on the electronic display screen 4 to confirm the charging state. The charging state is displayed as a flashing battery symbol, and the full state is displayed as a constant light.

[0054] ‌Start and mode selection;

[0055] Press and hold the main power switch 10 to start the hair dryer; the electronic display screen 4 will light up and display the temperature. Switch between cold and hot air modes using the cold air switch 5 and the heating switch 6: Cold air mode: Only the motor drives the fan blades. Hot air mode: Briefly press the heating switch 6 to adjust the temperature setting; the electronic display screen 4 will show the current temperature value in real time, and the airflow will carry the heat source through the heating element.

[0056] Air outlet operation;

[0057] Hold the hairdryer handle and aim the nozzle at the target area, such as drying or styling your hair.

[0058] II. Functional Expansion Operations

[0059] Disassembly: The push block 724 and the movable block 72 of the sliding switch assembly 7 slide outward to release the locking of the assembly block 5B, and remove the current air outlet.

[0060] Installation: Insert the assembly block 5B of the new functional head into the assembly slot 5A, release the push block 724, and the reset spring 73 drives the movable block 72 to return to its original position and lock.

[0061] Heated comb mode: After installing the heated comb 2B, press the heating switch 12 briefly to activate the heating component. The electronic display screen 4 shows the temperature in real time. When combing, the heat is evenly conducted through the comb teeth, achieving simultaneous combing and heating for styling.

Claims

1. A multi-functional hair dryer with rechargeable battery, comprising a hair dryer body (1) and a detachable air outlet head, the hair dryer body (1) is internally provided with an air making assembly and a heating assembly; the air making assembly comprises a driving motor and an air blade installed on the output shaft of the driving motor; characterized in that, The heating assembly comprises an electric heating wire heating frame (41) and a ceramic heat storage body (42) nested in the electric heating wire heating frame (41), the electric heating wire heating frame (41) is integrally formed with a cross body (411) extending in the axial direction in the inner cavity, and the ceramic heat storage body (42) is provided with a cross groove (421) in interference fit with the cross body (411), the cross groove (421) equally divides the windward end face of the ceramic heat storage body (42) into four air guide portions (422), and each air guide portion (422) is provided with a fluid passage (423) penetrating the axis of the ceramic heat storage body (42).

2. The rechargeable multi-functional hair dryer according to claim 1, characterized in that, The fluid passage (423) is an equal-diameter flow channel structure or a tapered flow channel structure, and the channel aperture of the tapered flow channel structure linearly decreases from the air inlet end to the air outlet end along the air flow direction.

3. The rechargeable multi-functional hair dryer according to claim 1, wherein, The air outlet head is a replaceable functional head, comprising a blowing cover (2A) and an electric heating comb (2B).

4. A rechargeable multi-functional hair dryer according to claim 3, characterized in that, The air outlet head and the hair dryer main body (1) are fixed through a detachable connection structure, the detachable connection structure comprises a plurality of assembly grooves (5A) uniformly distributed on the inner side surface of the hair dryer inner shell (11), a plurality of assembly blocks (5B) uniformly distributed on the outer side surface of the air outlet head connecting portion (21), and a switch assembly (7) arranged on the outer side of the hair dryer inner shell (11); the assembly block (5B) and the assembly groove (5A) form a clamping fit, and the switch assembly (7) controls the locking or separation of the assembly block (5B) and the assembly groove (5A) through mechanical linkage.

5. The rechargeable multi-functional hair dryer according to claim 4, characterized in that, The hair dryer inner shell (11) is composed of an upper shell (111) and a lower shell (112) arranged in opposition, the connecting block (1111) of the upper shell (111) is provided with a clamping groove (1112), the assembly surface (1121) of the lower shell (112) is provided with a convex body (1122) matched with the clamping groove (1112), and the outer side surface of the upper shell (111) is provided with a circuit board mounting structure composed of a plurality of connecting columns (1113).

6. A rechargeable multi-functional hair dryer according to claim 5, wherein The outer side surface of the lower shell (112) is provided with a mounting groove (1123) for arranging the switch assembly (7), and the inner side surface of the lower shell (112) is provided with a plurality of supporting blocks (1124), the supporting surface of the plurality of supporting blocks (1124) and the bottom surface of the extension part (711) of the fixed block (71) form a supporting fit.

7. A rechargeable multi-functional hair dryer according to claim 6, characterized in that, The switch assembly (7) comprises a fixed block (71) and a movable block (72), the lower part of the fixed block (71) and the movable block (72) is provided with an extension part (711, 721) extending to both sides, the fixed block (71) is fixedly arranged in the mounting groove (1123), and the bottom surface of the extension part (711) abuts against the supporting surface of the supporting block (1124); the extension part (721) of the movable block (72) is movably arranged on the extension part (711) of the fixed block (71), and the top surface of the extension part (721) and the inner side surface of the lower shell (112) form a sliding fit; The opposite side of the fixed block (71) and the movable block (72) is provided with a positioning shaft (712, 722), and the two positioning shafts (712, 722) are externally and jointly sleeved with a reset spring (73), and the reset spring (73) abuts against the fixed block (71) and the movable block (72) respectively; The other side of the movable block (72) is provided with a stop portion (723), the stop portion (723) is completely outside the periphery of the assembly groove (5A) in the reset state, and the assembly block (5B) is stopped; the upper portion of the movable block (72) is provided with a push block (724) for driving the movable block (724) to move.

8. The rechargeable multi-functional hair dryer according to claim 1, wherein, The inside of the hair dryer body (1) is provided with a charging battery seat (8), the charging battery seat (8) is built-in with a rechargeable lithium battery, and the rechargeable lithium battery is electrically connected with the driving motor to provide power; the bottom of the hair dryer body (1) is provided with a charging socket (9) matched with the charging battery seat (8).

9. The rechargeable multi-functional hair dryer according to claim 1, wherein, The outside of the hair dryer body (1) is provided with an electronic display screen (4) connected with the circuit board (3), a cold air key (5), a heating key (6) and a total power switch (10); the electronic display screen (4) is integrated in front of the circuit board mounting structure of the upper shell (111); the cold air key (5), the heating key (6) and the total power switch (10) are arranged transversely along the outside of the upper shell (111), and are signal connected with the circuit board (3) through a flexible circuit.

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