Accessory nozzle and hair dryer
The detachable accessory nozzle for hair dryers addresses heat dissipation and feature integration challenges by providing uniform airflow and stable contact pin support, improving user experience and reducing bulk.
Patent Information
- Application Number
- PCT/KR2023/019762
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-11-30
- Filing Date
- 2023-12-04
- Publication Date
- 2024-12-26
AI Technical Summary
Hair dryers face challenges in efficiently distributing heat away from the heater module to prevent burns and accommodating additional features like a battery and ion generator without becoming bulky or heavy, while maintaining optimal airflow for styling and drying.
A detachable accessory nozzle with a nozzle frame, discharge cover, and contact pin system that ensures uniform airflow through multiple nozzle holes, stabilizes the contact pin for improved usability, and incorporates a magnetic screw for secure attachment, allowing for efficient heat dissipation and reduced bulk.
The accessory nozzle provides stable and uniform airflow, enhances user experience by preventing heat transfer to external components, and allows for the integration of additional features without increasing the hair dryer's size or weight.
Smart Images

Figure KR2023019762_26122024_PF_FP_ABST
Abstract
Description
Accessory nozzle and hair dryer
[0001] The present invention relates to a detachable accessory nozzle and a hair dryer having the same.
[0002] A hair dryer that discharges gas through a gas discharge unit can be used to remove as much moisture as desired from wet hair or to style hair from its current shape into a desired shape.
[0003] A fan unit for circulating gas may be built into the inside of the hair dryer, and a hair dryer including such an internal configuration may be designed to be convenient for the user to use by taking into account its own weight, etc.
[0004] The heater module is located in the head, and if the heat from the heater module increases the case temperature, it poses a risk of burns and can affect internal components such as the control unit. Therefore, a structure is required that ensures that the heat from the heater module is fully transferred to the air passing through the circuit, rather than being transferred to the outside or other sources.
[0005] In particular, there is a need for a hair dryer that must have a built-in battery for wireless use, has additional space to install the battery in the hair dryer, can be equipped with additional parts such as an ion generator for expanded functionality, and can be combined with accessories.
[0006] However, since the hair dryer is held in the hand and used, it must be optimally arranged with a minimum number of parts to avoid adding various functions and making it bulky or heavy.
[0007] The purpose of the present invention is to provide an accessory nozzle capable of uniformly blowing wind through a plurality of nozzle holes and a hair dryer equipped with the same.
[0008] An accessory nozzle according to one aspect of the present invention comprises: a nozzle frame including a fluid inlet through which air is introduced and located at the rear, a fluid outlet through which air is discharged and located at the front, and a nozzle path extending from the fluid inlet to the fluid outlet; a discharge cover coupled to the fluid outlet of the nozzle frame and including a plurality of nozzle holes and pin holes; a screw boss formed adjacent to the pin hole formed in the discharge cover; a contact pin protruding forward through the pin hole; and a nozzle screw coupled to the screw boss of the discharge cover through the nozzle frame.
[0009] The contact pin includes an extended end positioned between the discharge cover and the nozzle frame at the rear end, and the extended end may be larger than the pinhole.
[0010] The nozzle path of the above nozzle frame includes an inclined surface extending forward; and a pin fixing portion protruding on the inclined surface and in contact with the rear surface of the extended end, and the nozzle screw can be fastened adjacent to the pin fixing portion.
[0011] The above-mentioned extension portion includes a first end that contacts the inclined surface of the nozzle frame and a second end that contacts the pin fixing portion, and an angle between the first end and the second end can be 90° or greater.
[0012] The above contact pin may include a pin cover made of an elastic material; a mold pin inserted from the back surface of the pin cover; and a cushion gap formed between the front end of the mold pin and the pin cover.
[0013] The above nozzle hole penetrates the nozzle projection protruding forward, and the contact pin can protrude forward more than the nozzle projection.
[0014] A nozzle case coupled to the rear surface of the nozzle frame; a nozzle magnet positioned on the rear surface of the nozzle case; and a magnetic screw penetrating the nozzle magnet, the nozzle case, and the nozzle frame, wherein the nozzle frame may include a gap rib formed on the rear surface to form a gap with the nozzle case.
[0015] The nozzle flow path of the nozzle frame may include a first flow path in a ring shape extending forward from the fluid inlet; and a second flow path that extends from the first flow path in a step manner and includes an inclined surface extending to the fluid outlet.
[0016] The nozzle hole includes a first nozzle hole located in front of the first flow path; a second nozzle hole located in the center of the discharge cover relative to the first nozzle hole; and a third nozzle hole located outside the discharge cover relative to the first nozzle roll, and the size of the first nozzle hole may be smaller than the second nozzle hole and the third nozzle hole.
[0017] The second nozzle hole may be larger in size and smaller in number than the third nozzle hole.
[0018] The above nozzle holes are arranged in a concentric circle from the center of the discharge cover, and the spacing between the nozzle holes may become smaller as they go from the center to the periphery.
[0019] The above discharge cover may be arranged so that the center thereof is concave toward the rear, and the contact pin may be located on the outer surface of the above discharge cover.
[0020] According to another aspect of the present invention, a hair dryer comprises: a main body including an air discharge unit through which wind is discharged forward; and an accessory nozzle coupled to the air discharge unit, wherein the accessory nozzle comprises: a nozzle frame including a fluid inlet positioned at the rear through which air is introduced, a fluid outlet positioned at the front through which air is discharged, and a nozzle path extending from the fluid inlet to the fluid outlet; a discharge cover coupled to the fluid outlet of the nozzle frame and including a plurality of nozzle holes and pin holes; a screw boss formed adjacent to the pin hole formed in the discharge cover; a contact pin protruding forward through the pin hole; and a nozzle screw coupled to the screw boss of the discharge cover through the nozzle frame.
[0021] The accessory nozzle of the present invention can uniformly discharge wind through a plurality of nozzle holes.
[0022] In addition, the fixing force of the contact pin of the accessory nozzle of the present invention is high, so that the contact pin is stably supported, thereby improving the usability.
[0023] The effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by a person having ordinary skill in the art to which the present invention belongs from the description below.
[0024] FIG. 1 is a front perspective view showing a hair dryer according to one embodiment of the present invention.
[0025] Figure 2 is a rear perspective view showing a hair dryer according to one embodiment of the present invention.
[0026] FIG. 3 is a front perspective view illustrating a state in which a nozzle is coupled to a main body of a hair dryer according to one embodiment of the present invention.
[0027] FIG. 4 is a drawing illustrating an accessory nozzle according to one aspect of the present invention.
[0028] FIG. 5 is a cross-sectional view of an accessory nozzle according to one aspect of the present invention.
[0029] Figure 6 is an exploded perspective view of an accessory nozzle according to one aspect of the present invention.
[0030] FIG. 7 is a drawing showing an extended end of a contact pin of an accessory nozzle and a pin fixing portion of a nozzle frame according to one aspect of the present invention.
[0031] Fig. 8 is a front view showing a discharge cover of an accessory nozzle according to one aspect of the present invention.
[0032] FIG. 9 is a graph showing the strength of wind discharged through a nozzle hole of an accessory nozzle according to one aspect of the present invention.
[0033] Below, with reference to the attached drawings, an embodiment of the present invention is described in detail so that a person having ordinary skill in the art to which the present invention pertains can easily practice it.
[0034] However, the present invention can be implemented in various different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts irrelevant to the description have been omitted, and similar parts have been designated with similar reference numerals throughout the specification.
[0035] In this specification, duplicate descriptions of identical components are omitted.
[0036] Additionally, when a component is referred to herein as being "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may be other components present in between. Conversely, when a component is referred to herein as being "directly connected" or "directly connected" to another component, it should be understood that there are no other components present in between.
[0037] Additionally, the terms used herein are only used to describe specific embodiments and are not intended to limit the present invention.
[0038] Also, in this specification, singular expressions may include plural expressions unless the context clearly indicates otherwise.
[0039] In addition, in this specification, it should be understood that terms such as “include” or “have” are intended to specify only the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, and do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.
[0040] Also, in this specification, the term 'and / or' includes a combination of multiple listed items or any item among multiple listed items. In this specification, 'A or B' can include 'A', 'B', or 'both A and B'.
[0041] The present invention relates to a handheld portable device, which refers to a small-sized electronic device that a user can hold and use. Since the portable device is not used in a stationary position but rather held directly by the user, it must be lightweight, and the grip of the handle (102) is important. Furthermore, since contaminants and other substances can easily enter from the outside, a waterproof function may be required.
[0042] The portable device of the present invention relates to a beauty device, and a representative example thereof is a hair dryer (100) for managing hair. Although the description is based on the hair dryer (100), the present invention is not limited thereto, and portable devices such as skin care devices or body care devices that a user holds in his / her hand and uses may also be included in the present invention.
[0043] Fig. 1 is a front perspective view illustrating a hair dryer (100) according to one embodiment of the present invention, and Fig. 2 is a rear perspective view of the hair dryer (100) according to one embodiment of the present invention. Fig. 3 is a cross-sectional view of the hair dryer (100) according to one embodiment of the present invention, taken along line AA of Fig. 2.
[0044] In the drawing, the x-axis represents the left-right direction, the y-axis represents the front-back direction, and the z-axis represents the up-down direction. When viewed from the front, +x is the right, and -x is the left. +y is the front, -y is the back, +z is the top, and -z is the bottom.
[0045] A hair dryer (100) according to one embodiment of the present invention includes a main body composed of a head portion (101) and a handle portion (102). The handle portion (102) is provided with an air inlet portion (104) at the bottom through which air is introduced from the outside, and the head portion (101) includes an air discharge portion (103) through which gas is discharged.
[0046] The interior of the main body (101, 102) of the hair dryer (100) includes an air path extending from the air inlet (104) to the air outlet (103). The air path of the present invention is not a straight path, but moves vertically from the handle portion (102) and is bent horizontally from the head portion (101).
[0047] The air inlet (104) may be located at the bottom of the handle (102) and the air outlet (103) may be located at the front of the head (101). The handle (102) and the head (101) have shapes corresponding to the extension direction of the air flow path. For usability, the handle (102) may extend in a direction slightly inclined forward from the vertical direction based on the head (101).
[0048] The handle portion (102) is configured as a cylinder with a diameter that a user can hold by hand, and the head portion (101) can also be configured as a cylinder with a larger diameter than the handle portion (102). The diameter of the handle portion (102) can be formed to be the same from the bottom to the top, but the head portion (101) can have a shape with a slightly smaller diameter at the front to induce the wind to be discharged to the air discharge portion (103).
[0049] The air inlet (104) includes an air inlet hole (1283) formed along the periphery of the handle (102), and may include a filter to prevent foreign substances such as dust from entering. A filter cover (128) may further be included to protect the filter.
[0050] The air discharge portion (103) is located in front of the head portion (101) and may include a circular opening. The heating coil of the heater module of the present invention has a donut shape with an empty central portion, and the air discharge portion (103) may also have a ring shape correspondingly.
[0051] Figure 3 illustrates a state in which an accessory nozzle (200) is attached to the main body. In order to change the way in which wind is discharged in a desired form by the user, various types of accessory nozzles (200) can be attached or detached from the air discharge unit (103).
[0052] A ring-shaped opening such as the air outlet (103) of Fig. 1 allows wind to blow over a wide area, making it easy to dry hair. However, for purposes such as styling or scalp care, it is advantageous to change the shape of the wind outlet.
[0053] In this way, a detachable accessory nozzle (200) can be used to change the shape of the air discharge according to the intended use. Since the central portion of the air discharge portion (103) is a portion where gas is not discharged, a nozzle coupling portion (113) can be placed. A head magnet that is coupled to the accessory nozzle (200) can be positioned in the nozzle coupling portion (113).
[0054] Fig. 4 is a drawing illustrating an accessory nozzle (200) according to one aspect of the present invention. The accessory nozzle (200) of the present embodiment is a scalp drying nozzle capable of evenly supplying wind to the scalp to dry the scalp, and may include a discharge cover (243) having a front portion larger than a rear portion and having a plurality of nozzle holes (244) formed in the front portion.
[0055] The nozzle hole (244) may be extended forward so that the wind discharged through the nozzle hole (244) faces forward. The contact pin (245) that directly contacts the scalp may be positioned at a predetermined distance from the nozzle hole (244) so that the nozzle hole (244) does not directly contact the scalp.
[0056] Because it adheres closely to the head and dries the scalp, the discharge cover (243) of the accessory nozzle (200) of the present invention may have a concave center and include a curved surface having a predetermined curvature.
[0057] Fig. 5 is a cross-sectional view of an accessory nozzle (200) according to one aspect of the present invention. Fig. 11 is an exploded perspective view of an accessory nozzle (200) according to one aspect of the present invention. Below, each component of the accessory nozzle (200) will be examined in more detail.
[0058] The accessory nozzle (200) includes a nozzle frame (241) including a fluid inlet (2411) at the rear, a fluid outlet (2413) at the front, and a nozzle passage (2412) connecting the fluid inlet (2411) and the fluid outlet (2413). The nozzle frame (241) may have a cone shape that expands forward as illustrated in FIGS. 5 and 6.
[0059] The rear fluid inlet (2411) has a ring shape corresponding to the shape of the air outlet of the hair dryer (100), and the fluid outlet (2413) can be widened into a circle wider than the fluid inlet (2411). As shown in FIG. 5, the nozzle flow path (2412) can include a first flow path (2412a) that forms a straight section forward from the fluid inlet (2411) and a second flow path (2412b) that changes from the donut-shaped first flow path (2412a) to a circle and expands forward.
[0060] If only the second flow path (2412b) extending directly forward is included without the first flow path (2412a), the straightness of the discharged wind may be weak, causing turbulence and weakening the strength of the wind discharged forward. In addition, since a space for arranging the nozzle magnet (212) for coupling with the nozzle coupling portion of the hair dryer (100) is required, the first flow path (2412a), which is a straight section extending from the fluid inlet (2411), may be included.
[0061] The discharge cover (243) covering the fluid outlet (2413) of the nozzle frame (241) includes a plurality of nozzle holes (244). The contact pin (245) of the present embodiment may not be formed integrally with the discharge cover (243), but may include a contact pin (245) penetrating into a pin hole (2435) formed in the discharge cover (243), as illustrated in FIG. 6.
[0062] The contact pin (245) protrudes forward from the nozzle hole (244) so that the nozzle hole (244) does not directly touch the user's scalp but is positioned at a predetermined distance away from it. Since it directly touches the user's scalp, it includes a pin cover (2455) made of an elastic material, and for rigidity, it may include a pin cover (2455) made of a projection material on the inside.
[0063] A space (cushion gap) can be formed between the front end of the mold pin (2451) and the pin cover (2455) for cushioning. The contact pin (245) can include an extended end (2452) larger in size than the pin hole (2435). The front end of the contact pin (245) protrudes forward through the pin hole (2435) of the discharge cover (243), but the extended end (2452) can be caught by the pin hole (2435) of the discharge cover (243) and positioned between the discharge cover (243) and the nozzle frame (241).
[0064] Fig. 7 is a drawing showing an extended end (2452) of a contact pin (245) of an accessory nozzle (200) according to one aspect of the present invention and a pin fixing portion (2415) of a nozzle frame (241). A screw boss (2436) may be positioned adjacent to a pin hole (2435) of a discharge cover (243).
[0065] The screw boss (2436) is connected from the rear to the front by a nozzle screw (246) that connects the nozzle frame (241) and the discharge cover (243). As shown in Fig. 5, the nozzle frame (241) and the discharge cover (243) are spaced apart from each other by a predetermined distance to form a nozzle path (2412), but the part where the screw boss (2436) is located is where the nozzle frame (241) and the discharge cover (243) come into contact.
[0066] The part where the screw boss (2436) of the discharge cover (243) is located can be supported by the nozzle frame (241) even when pressed toward the back. Therefore, the screw boss (2436) and the pin hole (2435) can be placed adjacent to each other to support the contact pin (245) that directly contacts the scalp and applies force toward the back from the rear.
[0067] To make the gap between the center of the contact pin (245) and the screw boss (2436) closer, the portion of the extended end (2452) corresponding to the screw boss (2436) may be omitted.
[0068] The contact pin (245) may be located on the outer side of the discharge cover (243) as illustrated in Fig. 4. Accordingly, the extended end (2452) may include a first end (2452a) that contacts the cone-shaped inclined surface of the nozzle frame (241).
[0069] However, since the contact pin (245) is subjected to force from the front to the rear, it is necessary to support the contact pin (245) in a direction perpendicular to the direction in which it is pressed in order to more effectively support the force of the contact pin (245).
[0070] The nozzle frame (241) includes a pin fixing portion (2415) that protrudes forward corresponding to the portion where the contact pin (245) is located, and the pin fixing portion (2415) faces vertically toward the rear where the pin is pressed. The extended end (2452) may also include a second end (2452b) that is in contact with the pin fixing portion (2415) corresponding thereto.
[0071] The first end (2452a) and the second end (2452b) form an angle of 90° or more and contact the inclined side wall of the nozzle passage (2412) of the nozzle frame (241) and the pin fixing portion (2415) to support the contact pin (245). The nozzle screw (246) passes through the screw hole (2156) adjacent to the pin fixing portion (2415) of the nozzle frame (241) and is fastened to the screw boss (2436), and the nozzle screw (246) can fix the discharge cover (243) and the nozzle frame (241) while fixing the contact pin (245).
[0072] Referring again to FIG. 5, the nozzle case (242) covering the back surface of the nozzle frame (241) blocks the heat of the hot air passing through the nozzle passage (2412) of the nozzle frame (241) from being transferred to the outside. To prevent heat transfer, the nozzle frame (241) and the nozzle case (242) can be combined to form a predetermined gap (g, FIG. 5).
[0073] The nozzle frame (241) may include a gap rib (2414) protruding at the rear so as to maintain a gap (g) between the nozzle frame (241) and the nozzle case (242).
[0074] A nozzle magnet (212) may be placed at the center of the ring-shaped fluid inlet (2411). The nozzle magnet (212) may include an elastic silicone guide (215) that guides the position of the nozzle coupling portion (113) of the hair dryer (100) and the coupling portion so as not to damage the nozzle coupling portion (113) of the hair dryer (100).
[0075] A magnetic screw (213) penetrating the nozzle magnet (212) can be fastened to the nozzle frame (241) by penetrating the nozzle magnet (212), the silicon guide (215), and the nozzle case (242). The rear end of the nozzle case (242) can be fixed by the magnetic screw (213), and the front end of the nozzle case (242) can be fastened to the nozzle frame (241) by using a hook structure (2424) formed around the front end.
[0076] Referring to Fig. 5, the wind spread along the second euro (2412b) can be discharged through the nozzle hole (244) of the discharge cover (243) coupled to the euro outlet. The nozzle hole (244) can extend forward from the discharge cover (243) to form a nozzle protrusion.
[0077] The wind that flows into the nozzle hole (244) in the second flow path (2412b) where the wind direction has changed can be discharged forward again through the straight section of the nozzle hole (244). In addition, the nozzle hole (244) is smaller at the front than at the rear, so that the speed of the wind discharged through the nozzle hole (244) can be increased.
[0078] Fig. 8 is a front view illustrating a discharge cover (243) of an accessory nozzle (200) according to one aspect of the present invention. The nozzle holes (244) of the present invention may be arranged in rows forming concentric circles as illustrated in Fig. 8. One nozzle hole (244) may be arranged at the center, and a greater number of nozzle holes (244) may be arranged toward the outer periphery. The spacing between the concentric rows may become closer toward the outer periphery.
[0079] As illustrated in FIG. 5, it may include a first nozzle hole (2441) positioned in a straight direction with a fluid inlet (2411), a second nozzle hole (2442) positioned diametrically more inward (center direction) than the first nozzle hole (2441), and a third nozzle hole (2443) positioned diametrically more outward (edge direction) than the first nozzle hole (2441).
[0080] The first nozzle hole (2441) is the location where the wind flowing in from the fluid inlet (2411) reaches the shortest distance, and thus, the wind speed and wind volume can be the greatest. Therefore, the size of the first nozzle hole (2441) can be formed smaller than the second nozzle hole (2442) and the third nozzle hole (2443).
[0081] As illustrated in Fig. 5, the exhaust cover (243) has a shape in which the center is concavely recessed toward the rear. Accordingly, the wind discharged through the second nozzle hole (2442) located at the center can move in the opposite direction of the direction of travel and then be discharged. Since the wind discharged through the second nozzle hole (2442) may have a small wind volume and weak wind strength, the size of the second nozzle hole (2442) can be formed as large as possible.
[0082] The third nozzle hole (2443) is larger than the first nozzle hole (2441), but smaller than the second nozzle hole (2442) and is more numerous. As it moves outward and away from the inlet, the third nozzle hole (2443) located in the outermost concentric circle among the plurality of third nozzle holes (2443) may be the largest in size.
[0083] Fig. 9 is a graph illustrating the strength of wind discharged through a nozzle hole (244) of an accessory nozzle (200) according to one aspect of the present invention. As described above, an accessory nozzle (200) equipped with nozzle holes (244) configured with different sizes and arrangements based on the position of the flow path inlet can exhibit a relatively constant strength of wind discharged through each nozzle hole (244).
[0084] As seen above, the accessory nozzle of the present invention can uniformly discharge wind through a plurality of nozzle holes (244).
[0085] In addition, the fixing force of the contact pin (245) of the accessory nozzle of the present invention is high, so that the contact pin (245) is stably supported, thereby improving the usability.
[0086] Although the present invention has been illustrated and described with respect to specific embodiments, it will be apparent to those skilled in the art that the present invention may be variously improved and modified without departing from the technical spirit of the invention as defined by the following claims.
Claims
1. A nozzle frame including a fluid inlet located at the rear through which air is introduced, a fluid outlet located at the front through which air is discharged, and a nozzle path extending from the fluid inlet to the fluid outlet; A discharge cover coupled to the fluid outlet of the above nozzle frame and including a plurality of nozzle holes and pin holes; A screw boss formed adjacent to the pinhole formed in the discharge cover; A contact pin protruding forward through the pinhole; and An accessory nozzle comprising a nozzle screw that penetrates the nozzle frame and is coupled to a screw boss of the discharge cover.
2. In paragraph 1, The contact pin includes an extended end located between the discharge cover and the nozzle frame at the rear end, An accessory nozzle characterized in that the extension end is larger than the pinhole.
3. In paragraph 2, The nozzle flow path of the above nozzle frame is a forward-extending slope; and It includes a pin fixing part that protrudes on the above slope and contacts the back surface of the extended end, An accessory nozzle characterized in that the nozzle screw is fastened adjacent to the pin fixing portion.
4. In paragraph 3, The above extension section, It includes a first end that contacts the inclined surface of the nozzle frame and a second end that contacts the pin fixing part, An accessory nozzle characterized in that the angle between the first end and the second end is 90° or greater.
5. In paragraph 2, The above contact pin Elastic pin cover; A mold pin inserted from the back of the above pin cover; and An accessory nozzle characterized by including a cushion gap formed between the front end of the mold pin and the pin cover.
6. In paragraph 1, The above nozzle hole penetrates the nozzle projection protruding forward, An accessory nozzle characterized in that the contact pin protrudes forward more than the nozzle protrusion.
7. In paragraph 1, A nozzle case coupled to the back surface of the above nozzle frame; A nozzle magnet located on the back of the nozzle case; and Including a magnet screw penetrating the nozzle magnet, the nozzle case and the nozzle frame, An accessory nozzle characterized in that the nozzle frame includes a gap rib formed on the rear surface to form a gap with the nozzle case.
8. In paragraph 1, The nozzle flow path of the above nozzle frame is: A first ring-shaped flow path extending forward from the fluid inlet; and An accessory nozzle characterized in that it includes a second flow path that extends in a step manner from the first flow path and includes an inclined surface extending to the fluid outlet.
9. In paragraph 8, The above nozzle hole A first nozzle hole located in front of the first euro; A second nozzle hole located at the center of the discharge cover relative to the first nozzle hole; and Including a third nozzle hole located outside the discharge cover than the first nozzle hole, An accessory nozzle characterized in that the size of the first nozzle hole is smaller than that of the second nozzle hole and the third nozzle hole.
10. In paragraph 9, An accessory nozzle characterized in that the second nozzle hole is larger and has a smaller number than the third nozzle hole.
11. In paragraph 1, The above nozzle holes are arranged in multiple concentric circles at the center of the discharge cover, An accessory nozzle characterized in that the spacing between the nozzle holes becomes smaller from the center to the periphery.
12. In paragraph 1, The above exhaust cover is positioned so that the center is concave toward the rear, An accessory nozzle characterized in that the contact pin is located on the outer side of the discharge cover.
13. A main body including an air discharge unit through which wind is discharged to the front; and Includes an accessory nozzle coupled to the above air discharge unit, The above accessory nozzle is, A nozzle frame including a fluid inlet through which air is introduced located at the rear, a fluid outlet through which air is discharged located at the front, and a nozzle path extending from the fluid inlet to the fluid outlet; A discharge cover coupled to the fluid outlet of the above nozzle frame and including a plurality of nozzle holes and pin holes; A screw boss formed adjacent to the pinhole formed in the discharge cover; A contact pin protruding forward through the pinhole; and A hair dryer comprising a nozzle screw that penetrates the nozzle frame and is coupled to a screw boss of the discharge cover.
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