Hair drier

Abstract

The utility model relates to an air blower which comprises a heat insulation cylinder and an outer shell. An air duct is arranged in the heat insulation cylinder, and a heating assembly is arranged in the air duct; the heat insulation cylinder is provided with an air outlet, a motor is arranged on the side, away from the air outlet, of the heat insulation cylinder, and an air inlet net is arranged on the side, away from the heat insulation cylinder, of the motor. A circuit board, a first clamping and fixing shell and a second clamping and fixing shell are arranged outside the heat insulation barrel, and the first clamping and fixing shell and the second clamping and fixing shell oppositely surround and wrap the peripheral wall surfaces of the heat insulation barrel and the motor and clamp and fix the circuit board; the interior of the outer shell is hollow, and the heat insulation barrel, the motor, the first clamping shell and the second clamping shell are wrapped in the outer shell. The circuit board is arranged outside the air duct, so that the noise of the air duct is effectively reduced, the air flow is smoother, and the wind power is larger; the arrangement of the first clamping shell and the second clamping shell can better fix the circuit board and the motor, so that the internal structure layout of the blower is stable, the service life of the blower is prolonged, and the use effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to hair dryer technical field, more specifically, relate to a hair dryer. BACKGROUND

[0002] Hair dryer is generally combined by electric heating wire and high speed fan. When electrified, electric heating wire will produce heat, and the wind blown by high speed fan will become hot wind after passing through electric heating wire. If only high speed fan rotates, and electric heating wire is not hot, then the wind blown out is cold wind. In a kind of hair dryer, circuit board is arranged in air duct, and when using, relatively large noise is generated, and air flow is also susceptible to influence, and for circuit board itself, its operation stability will also be influenced by air flow, so the service life of hair dryer is not long, therefore, the layout structure of hair dryer circuit board needs to be adjusted and improved. SUMMARY

[0003] The utility model provides a hair dryer to solve the technical problems of prior art.

[0004] The utility model discloses a hair dryer, including heat insulation cylinder and shell body, be equipped with air duct in the heat insulation cylinder, be equipped with heating assembly in the air duct, the heat insulation cylinder has the air outlet, the side of heat insulation cylinder away from air outlet is equipped with motor, the side of motor away from heat insulation cylinder is equipped with air inlet net, the outside of heat insulation cylinder is equipped with circuit board, first clamping solid casing and second clamping solid casing, first clamping solid casing and second clamping solid casing are opposite and are enclosed on the outer peripheral wall surface of heat insulation cylinder and motor and clamping solid circuit board, the inside of shell body is hollow and clamps solid circuit board, heating element, first clamping solid casing and second clamping solid casing in.

[0005] In some embodiments, the circuit board is provided with a heat dissipation element, and the heat dissipation element is inserted into the heat insulation cylinder and located in the air duct.

[0006] In some embodiments, the outer surface of the heat insulation cylinder is provided with a first avoiding through hole for inserting the heat dissipation element into the heat insulation cylinder, and the heat dissipation element is sealed in the first avoiding through hole.

[0007] In some embodiments, the outer peripheral wall surface of the heat insulation cylinder is provided with a protrusion, and the first avoiding through hole is formed on the surface of the protrusion away from the heat insulation cylinder.

[0008] In some embodiments, the circuit board is provided with a key on the surface away from the protrusion, the first clamping solid casing is provided with a second avoiding through hole corresponding to the position close to the key for the key to extend out, and the shell body is provided with a third avoiding through hole corresponding to the second avoiding through hole and for the key to extend out.

[0009] In some embodiments, the first clamping shell has a first groove and a second groove, and the second clamping shell has a third groove and a fourth groove; the first groove and the third groove oppositely enclose a first covering cavity, and the second groove and the fourth groove oppositely enclose a second covering cavity; the heat insulation cylinder and the motor are located in the first covering cavity, and the circuit board is located in the second covering cavity.

[0010] In some embodiments, the outer shell is further provided with an air inlet cover at one end close to the air inlet net, and the air inlet net is located in the air inlet cover.

[0011] In some embodiments, the air inlet cover is provided with a plurality of air inlet holes on a surface away from the outer shell, and a plurality of air inlet grooves on the outer circumferential side of the air inlet cover.

[0012] In some embodiments, the air inlet cover is provided with a power line electrically connected to the circuit board, and the first clamping shell and the second clamping shell extend into the air inlet cover at one end close to the air inlet net; the first clamping shell and the second clamping shell oppositely enclose and clamp the power line at one end located in the air inlet cover.

[0013] In some embodiments, the outer shell is provided with a fitting mounting portion at one end close to the air outlet of the heat insulation cylinder, and the outer shell is detachably assembled with a hair dryer accessory through the fitting mounting portion.

[0014] The beneficial effects of the utility model lie in that, different from the prior art, the hair dryer of the utility model effectively reduces the noise of the air duct by arranging the circuit board outside the air duct, makes the air flow more smooth, and the air force larger; the arrangement of the first clamping shell and the second clamping shell can better fix the circuit board and the motor, and make the heat insulation cylinder, the circuit board and the motor integrated, so that the internal structure layout of the hair dryer is more stable, which helps to improve the service life of the hair dryer and has better use effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the hair dryer in the utility model embodiment;

[0016] Figure 2 It is the internal structure schematic diagram of the hair dryer in the utility model embodiment;

[0017] Figure 3 It is another internal structure schematic diagram of the hair dryer in the utility model embodiment;

[0018] Figure 4 It is the exploded structure schematic diagram of the hair dryer in the utility model embodiment;

[0019] Figure 5 It is another exploded structure schematic diagram of the hair dryer in the utility model embodiment;

[0020] Figure 6 is an assembly schematic view of the hair dryer and the hair dryer accessory in the embodiment of the utility model;

[0021] Marked names and serial numbers in the figure: heat insulation cylinder-1;First clamping shell-2;Second clamping shell-3;Outer shell-4;Circuit board-5;Heat dissipation element-51;First avoiding through hole-101;Convex-11;Operating key-52;Second avoiding through hole-201;Third avoiding through hole-401;First recess-21;Second recess-22;Third recess-31;Fourth recess-32;Air inlet cover-6;Air inlet screen-7;Air inlet hole-601;Air inlet groove-602;Power cord-8;Hair dryer accessory-9;Sleeve-10. DETAILED DESCRIPTION

[0022] The terms "first", "second", "third", and "fourth" and the like in the description and in the claims of the utility model and the drawings are used to distinguish different objects, and are not used to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0023] In this paper, the "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the utility model. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment independent of or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] "Multiple" means two or more. "And / or", which describes the relationship between the associated objects, means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship.

[0025] Moreover, the terms "up, down, front, back, left, right, upper end, lower end" and the like indicating the orientation are all based on the attitude position of the device or equipment described in the scheme in normal use.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Examples of embodiments of this utility model Figures 1 to 6 As shown, a hair dryer includes a heat insulation cylinder 1 and an outer casing 4. The heat insulation cylinder 1 has an air duct inside, and a heating element is installed within the air duct. The heat insulation cylinder 1 has an air outlet, and a motor is located on the side of the heat insulation cylinder 1 away from the air outlet. An air inlet mesh 7 is located on the side of the motor away from the heat insulation cylinder 1. A circuit board 5, a first clamping housing 2, and a second clamping housing 3 are located outside the heat insulation cylinder 1. The first clamping housing 2 and the second clamping housing 3 enclose and cover the outer peripheral walls of the heat insulation cylinder 1 and the motor, clamping the circuit board 5. The outer casing 4 is hollow and encloses the heat insulation cylinder 1, the motor, the first clamping housing 2, and the second clamping housing 3 inside. By placing the circuit board 5 outside the air duct, the noise of the air duct is effectively reduced, resulting in smoother airflow and stronger airflow. The first clamping housing 2 and the second clamping housing 3 better secure the circuit board 5 and the motor, stabilizing the internal structure of the hair dryer. A sleeve 10 is also fitted onto the motor for effective protection.

[0028] In this embodiment, the circuit board 5 is provided with a heat dissipation element 51, which is inserted into the heat insulation cylinder 1 and located inside the air duct. Specifically, the outer surface of the heat insulation cylinder 1 is provided with a first clearance through hole 101 for the heat dissipation element 51 to be inserted into the heat insulation cylinder 1, and the heat dissipation element 51 is sealed inside the first clearance through hole 101. The heat dissipation element 51 can cool the circuit board 5. After the heat dissipation element 51 is inserted into the heat insulation cylinder 1 through the first clearance through hole 101, the gap at the first clearance through hole 101 can be sealed by a sealing element or sealant to seal the heat dissipation element 51 inside the first clearance through hole 101. The heat dissipation element 51 can dissipate heat well through the air duct. At the same time, the heat dissipation element 51 can increase the temperature of the air duct, thereby increasing the heat of the hot air blown out of the air duct. The sealing element is, for example, a rubber sealing ring. The heat dissipation element 51 is, for example, a heat sink.

[0029] In this embodiment, the heat insulation cylinder 1 is made of heat-resistant and heat-insulating material, which can effectively protect the heat in the air duct. There is no need to cover the heat insulation cylinder 1 with an additional heat insulation layer. This can effectively reduce production costs and separate the heat-resistant part from the non-heat-resistant part, making the hair dryer perform better.

[0030] It should be noted that the heating assembly in the embodiment, for example, the existing heating assembly including an electric heating wire, the arrangement of the heating assembly in the air duct of the hair dryer is the prior art, in actual application, any suitable heating assembly layout in the corresponding suitable position in the air duct can be referred to, which is not limited in the embodiment.

[0031] In the embodiment, a protrusion 11 is arranged on the outer peripheral wall surface of the heat insulation cylinder 1, and the protrusion 11 is in an integrated connection structure with the heat insulation cylinder 1. A first avoiding through hole 101 is arranged on a surface of the protrusion 11 away from the heat insulation cylinder 1. The circuit board 5 is installed on the protrusion 11, so that the circuit board 5 is separated from the heat insulation cylinder 1, and a gap is formed between the circuit board 5 and the heat insulation cylinder 1, which is helpful for heat dissipation of the circuit board 5.

[0032] The surface of the circuit board 5 away from the protrusion 11 is provided with an operation key 52, and the first clamping shell 2 is provided with a second avoiding through hole 201 corresponding to the operation key 52 and allowing the operation key 52 to protrude. The outer shell 4 is provided with a third avoiding through hole 401 corresponding to the second avoiding through hole 201 and allowing the operation key 52 to protrude. The first clamping shell 2 has a first recess 21 and a second recess 22, and the second clamping shell 3 has a third recess 31 and a fourth recess 32. The first recess 21 and the third recess 31 oppositely enclose a first covering cavity, and the second recess 22 and the fourth recess 32 oppositely enclose a second covering cavity. The heat insulation cylinder 1 and the motor are located in the first covering cavity, and the circuit board 5 is located in the second covering cavity. In the embodiment, the operation key 52 includes multiple pressing keys for realizing different operation controls, and correspondingly, the second avoiding through hole 201 and the third avoiding through hole 401 also have multiple avoiding through holes for allowing different pressing keys to protrude.

[0033] In order to increase the stability of the installation of the circuit board 5, guide columns and studs are arranged on the outer wall surface of the heat insulation cylinder 1 at positions corresponding to the circuit board 5, and the circuit board 5 is provided with a plug hole for inserting the guide columns and a mounting hole corresponding to the studs. The installation of the circuit board 5 is as follows: first, place the circuit board 5 on the protrusion 11, so that the guide columns are inserted into the plug hole, and the circuit board 5 is not easy to shift, at this time, the mounting hole is matched with the stud, then a fastener such as a screw is used to pass through the mounting hole and is inserted into the stud and is tightened, so that the circuit board 5 is preliminarily fixed, and then the first clamping shell 2 and the second clamping shell 3 are oppositely enclosed and covered on the outer peripheral wall surface of the heat insulation cylinder 1 and clamp the circuit board 5.

[0034] In the embodiment, the outer shell 4 is provided with an air inlet cover 6 close to one end of the air inlet net 7, and the air inlet net 7 is located in the air inlet cover 6. A plurality of air inlet holes 601 are provided on a surface of the air inlet cover 6 away from the outer shell 4, and the plurality of air inlet holes 601 are densely distributed. A plurality of air inlet grooves 602 are provided on the outer circumferential side of the air inlet cover 6 to ensure the air inlet amount and make the air inlet smooth. Specifically, the air inlet cover 6 is provided with a power line 8 electrically connected with the circuit board 5. The first clamping shell 2 and the second clamping shell 3 extend into the air inlet cover 6 close to one end of the air inlet, and the first clamping shell 2 and the second clamping shell 3 are opposite to each other at one end located in the air inlet cover 6 and clamp the power line 8. The first clamping shell 2 and the second clamping shell 3 can better fix the circuit board 5 and stably fix the power line 8, so that the internal structure layout of the hair dryer is more reasonable and stable.

[0035] Further, the outer shell 4 is provided with a accessory mounting portion close to one end of the air outlet of the heat insulation cylinder 1, and the outer shell 4 is detachably assembled with a hair dryer accessory 9 through the accessory mounting portion. The hair dryer accessory 9 is, for example, a comb, a curling iron, a straightening iron, etc. Correspondingly, one end of the comb, the curling iron, and the straightening iron should be provided with a connecting portion matched with the accessory mounting portion. In actual application, the accessory mounting portion and the connecting portion can be detachably assembled through, for example, a threaded connection mode, a buckle connection mode, or a lock buckle connection mode to meet different use requirements of users.

[0036] It should be noted that the above-mentioned threaded connection mode, buckle connection mode, or lock buckle connection mode, etc. detachable assembly mode are all relatively existing, and in actual application, they can be designed and selected according to actual application requirements. In the embodiment, only exemplary description is made, and no specific limitation is made.

[0037] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the utility model.

Claims

1. A hair dryer, characterized in that: The device includes a heat insulation cylinder and an outer shell. The heat insulation cylinder contains an air duct, and the air duct contains a heating element. The heat insulation cylinder has an air outlet, and a motor is located on the side of the heat insulation cylinder away from the air outlet. An air inlet is located on the side of the motor away from the heat insulation cylinder. The exterior of the heat insulation cylinder is provided with a circuit board, a first clamping shell, and a second clamping shell. The first and second clamping shells enclose and cover the outer peripheral walls of the heat insulation cylinder and the motor, clamping the circuit board. The outer shell is hollow and encloses the heat insulation cylinder, the motor, the first clamping shell, and the second clamping shell.

2. The hair dryer according to claim 1, characterized in that: The circuit board is equipped with a heat dissipation element, which is inserted into the heat insulation cylinder and located in the air duct.

3. The hair dryer according to claim 2, characterized in that: The outer surface of the heat insulation cylinder is provided with a first clearance through hole for inserting a heat dissipation element into the heat insulation cylinder, and the heat dissipation element is sealed in the first clearance through hole.

4. The hair dryer according to claim 3, characterized in that: A protrusion is provided on the outer peripheral wall of the heat insulation cylinder, and the first clearance through hole is opened on the surface of the protrusion away from the heat insulation cylinder.

5. The hair dryer according to claim 4, characterized in that: A button is provided on the surface of the circuit board away from the protrusion, and a second clearance through hole for the button to extend is provided at the position of the first clamping housing near the button; a third clearance through hole is provided on the outer shell corresponding to the second clearance through hole and for the button to extend.

6. The hair dryer according to any one of claims 1-5, characterized in that: The first clamping shell has a first groove and a second groove, and the second clamping shell has a third groove and a fourth groove; the first groove and the third groove are relatively enclosed to form a first covering cavity, and the second groove and the fourth groove are relatively enclosed to form a second covering cavity; The heat insulation cylinder and the motor are located in the first enclosed cavity, and the circuit board is located in the second enclosed cavity.

7. The hair dryer according to claim 1, characterized in that: The outer casing is also provided with an air inlet hood at one end near the air inlet mesh, and the air inlet mesh is located inside the air inlet hood.

8. The hair dryer according to claim 7, characterized in that: The air inlet shroud has multiple air inlet holes on one surface away from the outer casing, and multiple air inlet grooves are provided on the outer peripheral side of the air inlet shroud.

9. The hair dryer according to claim 7 or 8, characterized in that: The air inlet shroud is provided with a power cable that is electrically connected to the circuit board; the ends of the first clamping housing and the second clamping housing near the air inlet mesh both extend into the air inlet shroud, and the ends of the first clamping housing and the second clamping housing located inside the air inlet shroud surround and clamp the power cable.

10. The hair dryer according to any one of claims 1-8, characterized in that: The outer casing has an accessory mounting part at one end near the air outlet of the heat insulation cylinder, and a hair dryer accessory can be detachably mounted on the outer casing through the accessory mounting part.

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