Cosmetic device

Abstract

A hair care device is provided with a spray device disposed inside a housing. The spray device has a tank for storing a liquid, a dual-fluid nozzle (12A) for ejecting the liquid made into mist, a liquid feed pump for feeding the liquid from the tank to the dual-fluid nozzle (12A), and an air pump connected to the dual-fluid nozzle (12A). The dual-fluid nozzle (12A) has a first orifice portion (34) for mixing the liquid from a liquid supply flow path (32) with air from an air supply flow path (33) to atomize the liquid, and a mist discharge outlet (36) for ejecting the liquid atomized by the first orifice portion (34). A second orifice portion (35) having a larger inner diameter than that of the first orifice portion (34) is formed between the first orifice portion (34) and the mist discharge outlet (36).

Description

Technical Field

[0001] This disclosure relates to a beauty device. Background Technology

[0002] Patent Document 1 discloses a beauty device equipped with a spraying device. This beauty device includes: a tank for storing liquid; a spraying section for spraying the liquid, which is atomized into a mist; a pump for delivering liquid from the tank to the spraying section; and a detection section for detecting the posture of the spraying device. A control section adjusts the pump output based on the posture of the spraying device detected by the detection section.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-196862 Summary of the Invention

[0006] In existing beauty devices, the spray volume of the spray device is unstable because it cannot cope with the output fluctuations of the pump (liquid delivery pump) used to deliver the liquid. Therefore, existing beauty devices may not be able to supply the appropriate amount of liquid to the user.

[0007] This disclosure provides a beauty device equipped with a spraying device that can stably spray liquid regardless of changes in the liquid delivery volume from the liquid delivery pump.

[0008] The beauty device disclosed herein includes: a housing having an inlet and an outlet; and a spray device disposed inside the housing. The spray device includes: a reservoir for storing liquid; a dual-fluid nozzle for spraying liquid atomized into a mist; a liquid delivery pump for delivering liquid from the reservoir to the dual-fluid nozzle; and an air pump connected to the dual-fluid nozzle. The dual-fluid nozzle includes: a liquid supply path for supplying liquid from the liquid delivery pump; and an air supply path for supplying air from the air pump. Furthermore, the dual-fluid nozzle includes: a first orifice for mixing liquid from the liquid supply path with air from the air supply path to atomize the liquid; and a mist outlet for spraying the atomized liquid through the first orifice. A second orifice is formed between the first orifice and the mist outlet, the second orifice having an inner diameter larger than that of the first orifice.

[0009] According to this disclosure, a beauty device equipped with a spraying device can be provided that can stably spray liquid regardless of changes in the liquid delivery volume from the liquid delivery pump. Attached Figure Description

[0010] Figure 1This is a diagram illustrating the basic structure of a beauty device (hair care apparatus) according to one embodiment.

[0011] Figure 2 This is a block diagram showing the basic structure of the spraying device.

[0012] Figure 3 This is a cross-sectional perspective view showing the structure of a dual-fluid nozzle.

[0013] Figure 4 It is shown Figure 3 The diagram shows a longitudinal cross-sectional view of the structure of the dual-fluid nozzle.

[0014] Figure 5 This is a cross-sectional perspective view showing the structure of a dual-fluid nozzle according to other embodiments.

[0015] Figure 6 It is shown Figure 5 The diagram shows a longitudinal cross-sectional view of the structure of the dual-fluid nozzle. Detailed Implementation

[0016] The embodiments will now be described in detail with reference to the accompanying drawings. However, sometimes unnecessary detailed descriptions are omitted. For example, detailed descriptions of well-known matters or repeated descriptions of substantially the same structures are sometimes omitted.

[0017] Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure and are not intended to limit the subject matter of the claims.

[0018] Next, use Figures 1 to 4 This embodiment will now be described in detail with respect to the beauty device (hair care device 1).

[0019] [1. Structure]

[0020] First, the structure of the hair care device 1 according to this embodiment will be described.

[0021] The hair care device 1 described in this embodiment is an example of the beauty equipment disclosed herein, and in this embodiment it is a hair dryer.

[0022] Figure 1 This is a diagram showing the basic structure of the beauty device (hair care device 1) involved in the embodiment.

[0023] like Figure 1 As shown, the hair care device 1 includes a main body 1a and a holding part 1b. The main body 1a has a shell 2 forming a contour, and a cavity 3 is formed inside the shell 2. A groove is formed in the cavity 3 from the long side direction ( Figure 1 One side of the left and right direction (in the middle) Figure 1The suction port 4a on the right side of the middle extends to the other side in the long side direction. Figure 1 The airflow path 3a of the nozzle 4b (on the left side of the nozzle). In addition, the nozzle 4b is composed of a warm air nozzle 4c for blowing warm air to the outside of the hair care device 1 and a mist nozzle 4d for blowing mist to the outside of the hair care device 1.

[0024] The handle 1b, which is the part for the user to hold, is joined to the lower part of the housing 2 in a direction that intersects the long side of the main body 1a. The hair care device 1 is configured to have a generally T-shaped or generally L-shaped appearance (generally T-shaped in this embodiment) formed by the main body 1a and the handle 1b when in use.

[0025] The handle 1b has a base 1c on the side of the main body 1a and a front end 1d. A sliding power switch 5 is provided on the side surface of the handle 1b, and a power cord 6 extends from the protruding end (front end 1d) of the handle 1b. In addition, the handle 1b is rotatably connected to the main body 1a at the base 1c via a connecting part 1e. As a result, the hair care device 1 can fold the front end 1d to a position along the main body 1a.

[0026] In addition, a fan 7 and a motor 8, which serve as an example of an air supply unit, are arranged on the upstream side (the side near the intake port 4a) of the air supply flow path 3a in the main body 1a.

[0027] A heater 9 is disposed on the downstream side of the fan 7 (the side closer to the nozzle 4b than the fan 7). This heater 9 is an example of a heating section used to heat the air supplied from the fan 7. The heater 9 is formed, for example, by a resistive element that is arranged in a strip shape and a corrugated plate shape and wound along the inner circumference of the air supply path 3a.

[0028] Furthermore, a branch flow path 3b, independent of the air supply flow path 3a, exists above (above) the air supply flow path 3a. The components of the spray device 10 according to this embodiment are arranged in the branch flow path 3b. For details regarding the structure of the spray device 10, please refer to... Figure 2 This will be described later.

[0029] In this embodiment, a control unit 20 is disposed inside the gripping part 1b. This control unit 20 is used to supply power and control the operation of components such as the motor 8, heater 9, and spray device 10, which are operated by electricity. Furthermore, the circuits for supplying power and controlling the operation of each component can be integrated on a single substrate or distributed across multiple substrates.

[0030] Next, use Figure 2 To illustrate the spray device 10 of the hair care device 1 configured as described above.

[0031] Figure 2 This is a block diagram showing the basic structure of the spray device 10. (See diagram below.) Figure 2 As shown, the spray device 10 includes: a tank 11 as a storage section for storing liquid; a dual-fluid nozzle 12A as a spray section for spraying liquid that has been atomized; and a liquid delivery pump 13 for delivering liquid supplied from the tank 11 to the dual-fluid nozzle 12A. Additionally, the spray device 10 also includes an air pump 15 connected to the dual-fluid nozzle 12A.

[0032] Inside the dual-fluid nozzle 12A, a liquid supply path 32 and an air supply path 33 are formed. The liquid supply path 32 is used to supply liquid from the liquid delivery pump 13, and the air supply path 33 is used to supply air from the air pump 15 (see reference). Figure 3 and Figure 4 ).

[0033] Furthermore, a first orifice 34 and a second orifice 35, serving as a mixing space, are formed inside the dual-fluid nozzle 12A. This mixing space is used to mix the liquid from the liquid supply flow path 32 with the air from the air supply flow path 33 to atomize the liquid (see reference). Figure 3 and Figure 4 ).

[0034] The internal liquid supply path 32 of the dual-fluid nozzle 12A is connected to the tank 11 via a liquid pipe 21, and a liquid pump 13 is installed in the middle of the liquid pipe 21.

[0035] The tank 11 is, for example, a bag-shaped container (bag) formed of a flexible laminated film. The liquid delivery pump 13 is, for example, a pipe pump that delivers liquid by squeezing the liquid through the pipe 21 via rollers and a base.

[0036] On the other hand, the air supply path 33 inside the dual-fluid nozzle 12A is connected to the air pump 15 via an air pipe 22.

[0037] Furthermore, the liquid (mist) mixed and atomized in the mixing space (first orifice 34, second orifice 35) inside the dual-fluid nozzle 12A is sprayed from the mist outlet 36 to the outside of the dual-fluid nozzle 12A (see reference). Figure 3 and Figure 4 ).

[0038] Next, use Figure 3 and Figure 4 To illustrate the dual-fluid nozzle 12A of the spray device 10. Figure 3 This is a cross-sectional perspective view showing the structure of the dual-fluid nozzle 12A. Figure 4 It is shown Figure 3 The diagram shows a longitudinal cross-sectional view of the structure of the dual-fluid nozzle 12A.

[0039] like Figure 3 and Figure 4 As shown, the dual-fluid nozzle 12A has a main body portion 30. A liquid supply flow path 32, an air supply flow path 33, a first orifice portion 34, a second orifice portion 35, and a mist discharge outlet 36 are formed in the main body portion 30.

[0040] The main body 30 of the dual-fluid nozzle 12A is made of, for example, a metal material or a synthetic resin material.

[0041] A liquid supply pipe 21 is connected to the inlet end of the liquid supply flow path 32, and the outlet end of the liquid supply flow path 32 opens midway through the first orifice 34 and is connected thereto. In this embodiment, the liquid supply flow path 32 is connected to the constant diameter portion 34a in a manner orthogonal to the constant diameter portion 34a of the first orifice 34.

[0042] The liquid supply flow path 32 has a large-diameter section (large cross-sectional area section) 32a that constitutes the inlet side portion of the liquid supply flow path 32 and has a constant inner diameter (cross-sectional area). In addition, the liquid supply flow path 32 has a small-diameter section (small cross-sectional area section) 32b that constitutes the outlet side portion of the liquid supply flow path 32 and has a constant inner diameter (cross-sectional area) and is smaller than the large-diameter section (large cross-sectional area section) 32a.

[0043] An air pipe 22 is connected to the inlet end of the air supply flow path 33, and the outlet end of the air supply flow path 33 is connected to the first orifice 34.

[0044] The air supply flow path 33 has a constant diameter section (constant cross-sectional area section) 33a, which constitutes the inlet side portion of the air supply flow path 33 and has a constant inner diameter (cross-sectional area). In addition, the air supply flow path 33 has a narrowing section (reduced diameter section) 33b, which constitutes the outlet side portion of the air supply flow path 33 and has a reduced inner diameter (cross-sectional area) as it moves from the inlet side to the outlet side.

[0045] The first orifice portion 34 has a constant diameter portion (constant cross-sectional area portion) 34a, which constitutes the inlet side portion of the first orifice portion 34 and has a constant inner diameter (cross-sectional area). In addition, the first orifice portion 34 has an expanding diameter portion (expanding portion) 34b, which constitutes the outlet side portion of the first orifice portion 34 and has an inner diameter (cross-sectional area) that increases as it moves from the inlet side to the outlet side.

[0046] The second orifice 35 is formed between the first orifice 34 and the mist outlet 36, and has a larger orifice diameter than the first orifice 34.

[0047] The second orifice portion 35 has an expanding portion 35a, which constitutes the inlet side portion of the second orifice portion 35 and whose inner diameter (cross-sectional area) increases as it moves from the first orifice portion 34 side to the mist outlet 36 side. Additionally, the second orifice portion 35 has a constant diameter portion 35b, which constitutes the outlet side portion of the second orifice portion 35 and has a constant inner diameter (cross-sectional area) portion.

[0048] [3. Effects, etc.]

[0049] The effects obtained through this embodiment will be explained below.

[0050] (1) In this embodiment, the hair care device 1 includes: a housing 2 having an inlet 4a and an outlet 4b; and a spray device 10 disposed inside the housing 2. The spray device 10 includes: a tank 11 for storing liquid; a dual-fluid nozzle 12A for spraying liquid atomized into a mist; a liquid delivery pump 13 for delivering liquid from the tank 11 to the dual-fluid nozzle 12A; and an air pump 15 connected to the dual-fluid nozzle 12A. The dual-fluid nozzle 12A includes: a liquid supply path 32 for supplying liquid from the liquid delivery pump 13; and an air supply path 33 for supplying air from the air pump 15. In addition, the dual-fluid nozzle 12A includes: a first orifice 34 for mixing liquid from the liquid supply path 32 with air from the air supply path 33 to atomize the liquid; and a mist outlet 36 for spraying the liquid atomized through the first orifice 34. A second opening 35 is formed between the first opening 34 and the mist outlet 36. The second opening 35 has an inner diameter larger than that of the first opening 34. Here, the hair care device 1 is an example of the beauty equipment disclosed herein, and the tank 11 is an example of the storage unit disclosed herein.

[0051] When the liquid delivery rate from the liquid delivery pump 13 changes and a large amount of liquid is supplied to the dual-fluid nozzle 12A, the liquid that is not completely atomized in the first orifice 34 is held in the second orifice 35 in the form of convection F1 (see reference). Figure 4 Therefore, the hair care device 1 according to this embodiment can suppress the occurrence of liquid droplets sprayed onto the outside of the dual-fluid nozzle 12A.

[0052] Furthermore, the diameter of the second orifice 35 is larger than that of the first orifice 34. Therefore, it is possible to generate negative pressure within the second orifice 35 by utilizing the difference in flow velocity, causing external gas to flow in from the mist outlet 36 and generate turbulence. The hair care device 1 according to this embodiment can use this turbulence to cut off and atomize the liquid causing convection F1 within the second orifice 35.

[0053] That is, the hair care device 1 involved in this embodiment is a beauty device equipped with a spray device 10, which can stably spray liquid regardless of the change in the amount of liquid delivered from the liquid pump 13.

[0054] (2) The second orifice 35 has an enlarged diameter portion 35a that increases in inner diameter as it moves from the first orifice 34 side toward the mist outlet 36 side.

[0055] Because a vortex F2 is generated along the inner wall of the second orifice 35, the hair care device 1 according to this embodiment can suppress the decrease in flow velocity within the second orifice 35 and can efficiently cut off and atomize the fluid within the second orifice 35. That is, the hair care device 1 according to this embodiment is a beauty device equipped with a spray device 10, which can stably spray liquid regardless of changes in the liquid delivery volume from the liquid delivery pump 13.

[0056] (3) The second orifice 35 has a constant diameter portion 35b with a constant inner diameter.

[0057] The flow within the second orifice 35 is rectified in the constant diameter section 35b, thereby improving the directionality of the mist ejected from the mist outlet 36 and enabling the mist to stably reach the desired position.

[0058] (Other implementation methods)

[0059] Next, use Figure 5 and Figure 6 To illustrate the beauty device (hair care device) involved in other embodiments.

[0060] The difference between the spray device of the hair care device in other embodiments and the hair care device 1 in the other embodiments is that the spray device of the hair care device in the other embodiments has a dual-fluid nozzle 12B instead of the dual-fluid nozzle 12A of the spray device 10 in the hair care device 1 in the other embodiments. Furthermore, by comparing with... Figures 1 to 4 The same parts of the hair care device 1 involved in the illustrated embodiments are labeled with the same reference numerals, and their detailed descriptions are omitted.

[0061] Figure 5 This is a cross-sectional perspective view showing the structure of the dual-fluid nozzle 12B according to other embodiments. Figure 6 It is shown Figure 5 The diagram shows a longitudinal cross-sectional view of the structure of the dual-fluid nozzle 12B.

[0062] like Figure 5 and Figure 6As shown, the dual-fluid nozzle 12B has a main body portion 30 and a segmented portion 31 that engages with the main body portion 30 by pressing or the like. A liquid supply flow path 32, an air supply flow path 33, and a first orifice portion 34 are formed in the main body portion 30, and a second orifice portion 35 and a mist discharge outlet 36 are formed in the segmented portion 31.

[0063] The segment 31 of the dual-fluid nozzle 12B is formed of a material with a higher coefficient of thermal expansion than the material used to form the main body 30. This segment 31 is, for example, made of silicone rubber or resin.

[0064] exist Figure 5 and Figure 6 In the embodiment shown, only a constant diameter portion 35b is formed in the second orifice portion 35, and no enlarged diameter portion 35a is formed.

[0065] In addition, Figure 5 and Figure 6 In the embodiment shown, a narrowed section (reduced section) 32c is formed between the large-diameter section (large cross-sectional area section) 32a and the small-diameter section (small cross-sectional area section) 32b of the liquid supply flow path 32, the inner diameter (cross-sectional area) of which decreases as it moves from the inlet side to the outlet side.

[0066] The following explains how to pass through Figure 5 and Figure 6 The effects obtained by the implementation method shown are as follows.

[0067] (1) In this embodiment, the dual-fluid nozzle 12B is configured to have a main body portion 30 and a segment portion 31, wherein a first orifice portion 34 is formed in the main body portion 30 and a second orifice portion 35 is formed in the segment portion 31.

[0068] The hair care device according to this embodiment can support the spraying of a variety of liquids because the second orifice 35 can be changed to an orifice of a different shape without removing the main body part 30 (first orifice 34) which is attached to the hair care device.

[0069] Furthermore, regarding the hair care device according to this embodiment, when it is desired to adjust the particle size of the mist ejected by the dual-fluid nozzle 12B, the second orifice 35 can be changed to an orifice with a different orifice diameter. Therefore, the flow rate within the second orifice 35 of the hair care device according to this embodiment changes, thereby allowing adjustment of the mist particle size.

[0070] Furthermore, by removing the segment 31 (second opening 35) from the main body portion 30 (first opening portion 34) of the hair care device according to this embodiment, the first opening portion 34 of the hair care device according to this embodiment can be easily maintained.

[0071] (2) The segment 31 is formed of a material with a higher thermal expansion coefficient than the material used to form the main body 30.

[0072] Generally speaking, the viscosity of a liquid decreases as the temperature increases, and the viscosity increases as the temperature decreases.

[0073] Since liquids diffuse easily at low viscosity, a longer length from the inlet to the outlet (mist outlet 36) of the second orifice 35 is preferred. Furthermore, since liquid convection F1 is easily induced within the second orifice 35, a larger orifice diameter is preferred.

[0074] The segment 31, formed of a material with a high coefficient of thermal expansion, is prone to deformation depending on temperature. Therefore, if it becomes high temperature, the length from the inlet to the outlet (mist outlet 36) of the second orifice 35 becomes longer, and the aperture of the second orifice 35 becomes larger.

[0075] On the other hand, since liquids are difficult to diffuse at high viscosity, the length from the inlet to the outlet (mist outlet 36) of the second orifice 35 can also be short. In addition, since it is difficult to induce liquid convection F1 within the second orifice 35, a small orifice diameter is more preferable.

[0076] The segment 31, formed of a material with a high coefficient of thermal expansion, is prone to deformation depending on temperature. Therefore, if the temperature drops, the length from the inlet to the outlet (mist outlet 36) of the second orifice 35 becomes shorter, and the aperture of the second orifice 35 becomes smaller.

[0077] In summary, since the second orifice 35 automatically deforms into a shape suitable for the viscosity of the liquid according to the viscosity change of the liquid caused by temperature changes, the hair care device according to this embodiment can atomize and spray the liquid without replacing the entire dual-fluid nozzle 12B.

[0078] That is, the beauty device disclosed herein is a hair dryer equipped with a liquid spray unit. The hair dryer includes: a fluid nozzle section that atomizes liquid using air; a liquid delivery pump section for delivering liquid; a substance storage tank section for storing the substance sprayed from the liquid spray unit; and an air delivery pump section for delivering air. The fluid nozzle section has a second orifice section at the outlet portion of a first orifice section through which the fluid flows, and this second orifice section has an orifice diameter equal to or greater than that of the first orifice section. The fluid nozzle section is configured such that the first orifice section and the second orifice section are formed in separate components and joined together. Furthermore, in the hair dryer, a grounding electrode section is provided on the end face of the second orifice section on the side of the first orifice section, and a high-voltage electrode section is provided on the outlet portion surface of the second orifice section. The first and second orifice sections are made of an insulating material. Furthermore, the second orifice section is detachable or replaceable. Furthermore, the second orifice section is made of a material with a high coefficient of thermal expansion. Furthermore, the second orifice section is made of silicone rubber or resin.

[0079] Furthermore, the above-described embodiments are used to illustrate the technology in this disclosure, and therefore various changes, substitutions, additions, omissions, etc., can be made within the scope of the claims or their equivalents.

[0080] Industrial availability

[0081] This disclosure can be applied to beauty devices equipped with a spray device, such as hair care devices, hair dryers, etc.

[0082] Explanation of reference numerals in the attached figures

[0083] 1: Hair care device (beauty equipment); 1a: Main body; 1b: Handling part; 1c: Base; 1d: Front end; 1e: Connecting part; 2: Housing; 3: Hole; 3a: Airflow path; 3b: Branch flow path; 4a: Inlet; 4b: Outlet; 4c: Warm air outlet; 4d: Mist outlet; 5: Power switch; 6: Power cord; 7: Fan; 8: Motor; 9: Heater; 10: Spraying device; 11: Tank (storage part); 12A: Dual-fluid nozzle (spraying part); 12B: Dual-fluid nozzle (spraying part); 13: Liquid pump; 15: Air pump; 20: Control unit; 21: Liquid pipe; 2 2: Air pipe; 30: Main body; 31: Segmented section; 32: Liquid supply flow path; 32a: Large diameter section (large cross-sectional area section); 32b: Small diameter section (small cross-sectional area section); 32c: Reduced diameter section (reduced diameter section); 33: Air supply flow path; 33a: Constant diameter section (constant cross-sectional area section); 33b: Reduced diameter section (reduced diameter section); 34: First orifice section; 34a: Constant diameter section (constant cross-sectional area section); 34b: Expanded diameter section (expanded diameter section); 35: Second orifice section; 35a: Expanded diameter section (expanded diameter section); 35b: Constant diameter section (constant cross-sectional area section); 36: Mist outlet; F1: Convection; F2: Vortex.

Claims

1. A beauty device, comprising: The housing has an intake port and an exhaust port; and The spraying device is disposed inside the housing. in, The spraying device includes: a storage section for storing liquid; a dual-fluid nozzle for spraying the liquid atomized into a mist; a liquid delivery pump for delivering the liquid from the storage section to the dual-fluid nozzle; and an air pump connected to the dual-fluid nozzle. The dual-fluid nozzle comprises: a liquid supply path for supplying liquid from the liquid delivery pump; an air supply path for supplying air from the air pump; a first orifice for mixing the liquid from the liquid supply path with the air from the air supply path to atomize the liquid; and a mist outlet for spraying the atomized liquid that has passed through the first orifice. A second orifice is formed between the first orifice and the mist outlet, the second orifice having an inner diameter larger than that of the first orifice. The dual-fluid nozzle is configured to have a main body and a segmented portion, wherein the first orifice is formed in the main body and the second orifice is formed in the segmented portion. The segmented portion is formed of a material with a higher coefficient of thermal expansion than the material used to form the main body portion.

2. The beauty device according to claim 1, wherein, The second orifice has an enlarged diameter portion whose inner diameter increases as it moves from the first orifice side toward the mist outlet side.

3. The beauty device according to claim 1, wherein, The second orifice has a constant diameter section with a constant inner diameter.

4. The beauty device according to claim 2, wherein, The second orifice has a constant diameter section with a constant inner diameter.

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