Accessory of handheld appliance and handheld appliance

Abstract

The utility model discloses an accessory of a handheld appliance and the handheld appliance, and relates to the technical field of hair care appliances, the accessory of the handheld appliance comprises a main body, a shell and a flow deflector set, the main body is provided with an air guide flow channel, a plurality of air outlet areas are arranged on the outer wall face of the main body, each air outlet area is provided with a plurality of ventilation holes, and the air guide flow channel is communicated with the shell. Each ventilation hole is communicated with the air guide flow channel; the shell is cylindrical, the shell is connected to the exterior of the main body in a sleeving mode, and a plurality of air outlets are formed in the shell; the flow deflector group is mounted between the shell and the main body, the flow deflector group comprises a plurality of flow deflectors, a plurality of flow deflector holes are formed in the flow deflectors, the flow deflector holes are configured to be communicated with the ventilation holes and the air outlets which are correspondingly formed, flow deflectors are arranged in the flow deflector holes, and the flow deflectors are configured to enable airflow to flow in the circumferential direction of the shell. According to the hair curling device, hair blown by flowing air can be wound on the outer wall face of the shell under the action of the coanda effect to achieve the hair curling function, and a user does not need to wind the hair on the heating pipe.

Description

Technical Field

[0001] The present application relates to the technical field of hair care appliances, in particular to an accessory of a handheld appliance and a handheld appliance. Background Art

[0002] Most of the current curling irons only have a heating function. To complete the curling design, users need to wrap the hair around the heating tube by hand, which is very troublesome and it is easy to burn themselves. Utility Model Content

[0003] In view of this, the purpose of the present application is to provide an accessory for a handheld device, which is used to solve the technical problem that users of the prior art wrap their hair around the heating tube, which is both troublesome and easy to burn themselves.

[0004] In order to achieve at least one of the above purposes, the present application provides the following technical solutions:

[0005] One embodiment of the present application provides an accessory for a handheld device, comprising:

[0006] A main body having an air guide channel, wherein a plurality of air outlet areas arranged at intervals are arranged on an outer wall surface of the main body in a circumferential direction, each of the air outlet areas is provided with a plurality of ventilation holes arranged side by side and at intervals, and each of the ventilation holes is connected to the air guide channel;

[0007] A shell, which is in a cylindrical shape, is sleeved on the outside of the main body, and is provided with a plurality of air outlets corresponding to the ventilation holes one by one;

[0008] A guide vane group is installed between the shell and the main body, the guide vane group includes a plurality of guide vanes corresponding to each of the air outlet areas, the guide vanes are provided with a plurality of guide holes arranged side by side and at intervals, the guide holes are configured to connect the corresponding ventilation holes and the air outlets, a guide plate is provided in the guide hole, and the guide plate is configured to make the airflow flow along the circumference of the shell.

[0009] As an accessory of the handheld device as described above, wherein the surface of the guide plate facing the shell is a mounting surface, and snap-fit ​​ribs are provided on the mounting surface at peripheral positions corresponding to the guide holes, and the snap-fit ​​ribs are configured to snap-fit ​​with the corresponding air outlets.

[0010] An accessory for a handheld device as described above, wherein:

[0011] As described above, the accessory of the handheld device, wherein the mounting surface is further provided with a plurality of first connecting ribs spaced apart and arranged side by side, the first connecting ribs extending along the length direction of the mounting surface, and the first connecting ribs being configured to be connected to the inner surface of the outer shell.

[0012] As described above, in the accessory of the handheld device, the guide plate is provided with diverter ribs, and the diverter ribs are configured to separate the guide holes into at least two guide channels.

[0013] As described above, in the accessory of the handheld device, the outer wall surface of the main body is provided with guide ribs, the guide ribs extend along the axial direction of the main body, and the guide ribs are configured to be inserted between two adjacent guide plates.

[0014] As the accessory of the handheld device as described above, wherein the guide rib is provided with a second connecting rib, and the second connecting rib is configured to be connected to the inner surface of the shell.

[0015] As an accessory of the handheld device as described above, wherein the inner wall surface of the shell is provided with a first heating groove and a second heating groove arranged at equal intervals, the main body is provided with a first recessed portion at a position corresponding to the first heating groove, and the main body is provided with a second recessed portion at a position corresponding to the second heating groove.

[0016] The accessory of the handheld device as described above, wherein the first recessed portion is provided with an anti-fouling convex rib.

[0017] As an accessory of the handheld device as described above, a heating area is also provided on the outer wall surface of the main body, and the heating area is located between two adjacent air outlet areas. A plurality of hot air holes arranged side by side and at intervals are provided on the heating area, and the hot air holes are configured to guide the hot air to the inner wall surface of the outer shell.

[0018] As the accessory of the handheld device as described above, wherein the ventilation hole, the guide hole and the air outlet are connected in sequence to form an air outlet flow channel, and the angle between the air outlet flow channel and the normal axis of the plane where the air outlet is located ranges from 30° to 90°.

[0019] The accessory of the handheld device as described above, wherein the height of the air outlet end of the air outlet flow channel is h, and 0.45 mm≤h≤0.9 mm.

[0020] The accessory of the handheld device as described above, wherein the accessory of the handheld device further comprises:

[0021] A top cover, which is disposed on the first end of the shell and connected to the first end of the main body;

[0022] The conductive seat is covered at the second end of the shell and connected to the second end of the main body.

[0023] As described above, in the accessory of the handheld device, the main body is made of polyphenylene sulfide.

[0024] The accessory of the handheld device as described above, wherein the guide plate is a guide plate made of polyphenylene sulfide.

[0025] The accessory for the handheld device as described above, wherein the cross section of the shell is in a circular ring shape.

[0026] The accessory for the handheld device as described above, wherein the shell is an aluminum shell.

[0027] Another embodiment of the present application provides a handheld device, which includes the above-mentioned accessory of the handheld device.

[0028] The handheld device as described above, wherein the handheld device further comprises a host, a control circuit board and a coupler are installed in the host, the coupler is electrically connected to the control circuit board, and the accessory of the handheld device is electrically connected to the coupler.

[0029] Compared with the prior art, the above technical solution has the following advantages:

[0030] The accessory of the handheld device of the present application guides the flowing gas through the guide plate, so that the hair blown by the flowing gas is wrapped around the outer wall surface of the shell under the action of the Coanda effect to complete the curling function, and the user does not need to wrap the hair around the heating tube, which not only avoids the occurrence of burns, but also saves time and effort;

[0031] The attachment of the handheld device of the present application, by arranging diverter ribs on the guide plate, changes the outlet angle of the flowing gas to converge to the middle, and the airflow is more stable, thereby shortening the winding and shaping time and improving the curling effect;

[0032] The attachment of the handheld device of the present application makes the installation of the main body simpler and more convenient by providing anti-fool convex ribs;

[0033] The accessory of the handheld device of the present application reduces the contact area between the guide plate and the housing by providing the first connection rib, which not only makes it easier to insert the guide plate into the housing, but also avoids the influence of deformation of the guide plate during installation, and reduces the influence of the guide plate on the heat loss of the housing; and reduces the contact area between the main body and the housing by providing the second connection rib, which not only makes it easier to insert the main body into the housing, but also reduces the influence of the main body on the heat loss of the housing;

[0034] The handheld device of the present application has the above-mentioned accessories, and therefore, the handheld device of the present application has all the advantages of the above-mentioned accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] Figure 1 A schematic diagram of a first structure of an accessory of a handheld device provided in some embodiments of the present application;

[0037] Figure 2 yes Figure 1 A schematic cross-sectional view of a three-dimensional structure of an accessory of the handheld device shown;

[0038] Figure 3 It is a schematic diagram of the structure of the subject;

[0039] Figure 4 This is a schematic diagram of the first structure of the shell;

[0040] Figure 5 It is a schematic diagram of the structure of the guide vane;

[0041] Figure 6 yes Figure 5 A schematic diagram of the cross-sectional structure of the guide vane shown;

[0042] Figure 7 yes Figure 4 The schematic diagram of the assembly structure of the housing and the guide vane group shown;

[0043] Figure 8 It is a schematic diagram of the structure of the top cover;

[0044] Fig. 9 It is a schematic diagram of the structure of the conductive seat;

[0045] Fig.10 is a schematic diagram of a second structure of an accessory of a handheld device provided in some embodiments of the present application;

[0046] Fig.11 is a schematic cross-sectional view of a third structure of an accessory of a handheld device provided in some embodiments of the present application;

[0047] Fig.12 yes Fig.11 The schematic diagram of the structure of the accessory of the handheld device shown in the figure after removing the outer shell;

[0048] Fig.13It is a schematic diagram of the second structure of the shell;

[0049] Fig.14 It is a schematic diagram of the exploded structure of the handheld device provided in some embodiments of the present application.

[0050] Description of Figure Numbers:

[0051] 10. Subject;

[0052] 11. air guide channel; 12. air outlet area; 121. ventilation hole; 13. heating area; 131. hot air hole; 14. guide rib; 141. second connecting convex rib; 15. first concave portion; 151. foolproof convex rib; 16. second concave portion;

[0053] 20. Shell;

[0054] 21. air outlet; 22. first heating tank; 23. second heating tank; 24. first heater; 25. second heater;

[0055] 30. Guide vane;

[0056] 301, mounting surface; 3011, snap-fit ​​convex rib; 3012, first connecting convex rib;

[0057] 31. guide hole; 311. guide plate; 3111. diverter rib;

[0058] 40. top cover; 41. first threaded hole; 42. limiting rib;

[0059] 50. Conductive seat; 51. Second threaded hole; 52. Attachment circuit board; 521. Insert spring; 53. Conductive needle;

[0060] 60. Host; 61. Coupler; 611. Spring pin. DETAILED DESCRIPTION

[0061] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

[0062] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field to which this application belongs; the terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0063] The "embodiment" mentioned in this application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0064] The special word "exemplary" mentioned in this application means "used as an example, embodiment or illustrative". Any embodiment described as "exemplary" is not necessarily interpreted as being superior or better than other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0065] In the description of this application, the technical terms "first", "second", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary and secondary relationship of the indicated technical features.

[0066] In the description of the present application, the directions or positional relationships indicated by the technical terms "upper", "lower", "inner", "outer", etc. are directions or positional relationships based on the working state of the present application, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present application.

[0067] In the description of this application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0068] In the description of the present application, unless otherwise clearly specified and limited, a first feature being “on” or “under” a second feature may mean that the first and second features are in direct contact with each other, or that the first and second features are in indirect contact with each other through an intermediate medium.

[0069] In the description of the present application, “plurality” means two or more (including two), unless otherwise clearly and specifically defined.

[0070] The technical solutions of the embodiments of the present application are described in detail below in conjunction with the accompanying drawings. The technical features involved in the different implementation modes of the present application described below can be combined with each other as long as there is no conflict between them. Embodiment 1

[0071] like Figure 1 and Figure 2 As shown, the present application provides an accessory for a handheld device, which includes a main body 10, a housing 20 and a guide plate group, wherein:

[0072] like Figure 3 As shown, the main body 10 is columnar, and the main body 10 has an air guide channel 11, which extends along the axial direction of the main body 10, and at least one end of the air guide channel 11 is located on the end surface of the main body 10, and the air guide channel 11 is used to pass flowing gas, and a plurality of air outlet areas 12 arranged at intervals are arranged on the outer wall surface of the main body 10 along the circumferential direction, and each air outlet area 12 extends along the circumferential direction of the main body 10, and each air outlet area 12 is provided with a plurality of ventilation holes 121 arranged side by side and at intervals, and each ventilation hole 121 is connected to the air guide channel 11, and the flowing gas entering the air guide channel is discharged through the ventilation holes 121;

[0073] like Figure 4 As shown, the housing 20 is cylindrical and is sleeved on the outside of the main body 10. The housing 20 is used to directly contact the hair. The housing 20 is provided with a plurality of air outlets 21 corresponding to the ventilation holes 121, that is, one ventilation hole 121 corresponds to one air outlet 21, and the flowing gas can be discharged from the housing through the air outlet 21 and blown toward the hair.

[0074] like Figure 2 and Figure 7 As shown, the guide vane group is installed between the housing 20 and the main body 10, and the guide vane group includes a plurality of guide vanes 30 corresponding to each air outlet area 12. Figure 5 and Figure 6 As shown, the cross section of each guide vane 30 is arc-shaped, that is, a guide vane 30 is provided at each air outlet area 12. For example, Figure 2In the illustrated embodiment, four air outlet areas 12 are provided on the main body 10, and correspondingly, the guide plate group includes four guide plates 30, and a plurality of guide holes 31 are provided on the guide plates 30, which are arranged side by side and at intervals, and the guide holes 31 are configured to connect the corresponding ventilation holes 121 and the air outlet 21, that is, the corresponding ventilation holes 121, the guide holes 31 and the air outlet 21 are connected in sequence to form an air outlet flow channel, and a guide plate 311 is provided in the guide hole 31, and the guide plate 311 is configured to make the airflow flow along the circumference of the outer shell 20, that is, when the flowing gas passes through the air outlet flow channel, it will flow toward the circumference of the outer shell 20 under the guidance of the guide plate 311, so that the hair blown by the flowing gas is wrapped around the outer wall surface of the outer shell 20 under the action of the Coanda effect, so as to achieve the purpose of curling the hair.

[0075] The accessory of the handheld device of the present application guides the flowing gas through the guide plate 311, so that the hair blown by the flowing gas is wrapped around the outer wall surface of the shell 20 under the action of the Coanda effect to complete the curling function. The user does not need to wrap the hair around the heating tube, which not only avoids burns to the user, but also saves time and effort.

[0076] In a preferred embodiment of the present application, Figure 2 As shown, the ventilation holes 121, the guide holes 31 and the air outlet 21 are connected in sequence to form an air outlet flow channel F. The angle α between the air outlet flow channel F and the normal axis OZ of the plane where the air outlet 21 is located ranges from 30° to 90°. Specifically, the angle α can be 60°, 70°, 75°, 80°, 85° or 89°. Such an angle prevents the gas from being blown out directly, but will be offset along the angle. Through the cooperation between multiple guide plates 30, the hair can be naturally adsorbed on the surface of the accessory (housing 20) and entangled to produce various shapes. Specifically, a theoretical highest air outlet point will be formed at the air outlet 21. The normal axis OZ of the housing 20 at this point is used as the normal axis of the plane where the air outlet 21 is located. The angle α is calculated. The closer the angle α is to 90°, the more accurately the discharged gas can surround the surface of the accessory (housing 20). The height of the outlet end of the air outlet flow channel F is h, 0.45mm≤h≤0.9mm, preferably h=0.7mm, so that the airflow is discharged from the slit, forming a negative pressure on the surface of the attachment to achieve adsorption of the hair.

[0077] In a specific example of this embodiment, Figure 1 As shown, the ventilation holes 121 are arranged at equal intervals, that is, the air outlets 21 are arranged at equal intervals, so that the flowing gas can be evenly attached to the outer wall surface of the shell 20, and further during the hairdressing process, the hair can be evenly wrapped around the outer wall surface of the shell 20 to complete the curling.

[0078] Further, if Figure 5 , Figure 6 and Figure 7 As shown, the surface of the guide plate 30 facing the shell 20 is the mounting surface 301, and snap-fit ​​ribs 3011 are provided on the mounting surface 301 at the peripheral positions corresponding to each guide hole 31. Preferably, the snap-fit ​​ribs 3011 are annular. Of course, the length of the snap-fit ​​ribs 3011 can also be adjusted according to actual use needs. For example, the snap-fit ​​ribs 3011 surround the guide hole 31 half a circle, and are configured to snap fit with the corresponding air outlet 21. The guide plate 30 is connected to the shell 20 through the snap fit between the snap-fit ​​ribs 3011 and the air outlet 21. This connection method is simple and convenient, thereby saving time and effort in the installation of the guide plate 30.

[0079] Going further, Figure 5 As shown, the mounting surface 301 is also provided with a plurality of first connecting ribs 3012 which are spaced apart and arranged side by side. The first connecting ribs 3012 extend along the length direction of the mounting surface 301, that is, the first connecting ribs 3012 extend along the axial direction of the outer shell 20. Preferably, the length of the first connecting ribs 3012 is equal to the length of the guide vane 30. The first connecting ribs 3012 are configured to be connected to the inner surface of the outer shell 20. The provision of the first connecting ribs 3012 reduces the contact area between the guide vane 30 and the outer shell 20, which not only makes it easier to insert the guide vane 30 into the outer shell 20, but also avoids the influence of deformation of the guide vane 30 during the installation process, and reduces the influence of the guide vane 30 on the heat loss of the outer shell 20.

[0080] In one embodiment of the present application, Figure 2 and Figure 3 As shown, the outer wall surface of the main body 10 is provided with a guide rib 14, and the guide rib 14 extends along the axial direction of the main body 10. Preferably, the length of the guide rib 14 is equal to the length of the main body 10. The guide rib 14 is configured to be inserted between two adjacent guide plates 30. Specifically, when the guide plate 30 is snap-fitted with the outer shell 20, a slot is formed between the two adjacent guide plates 30. When installing the main body 10, the guide rib 14 is aligned with the slot and inserted into the outer shell 20. Through the cooperation between the guide rib 14 and the slot, the installation of the main body 10 is guided, so that the installation of the main body 10 is smoother.

[0081] Further, if Figure 2 As shown, a second connecting rib 141 is provided on the guide rib 14, and the second connecting rib 141 is configured to be connected to the inner surface of the outer shell 20. The provision of the second connecting rib 141 reduces the contact area between the guide rib 14 and the outer shell 20, which not only makes it easier to insert the main body 10 into the outer shell 20, but also reduces the influence of the main body 10 on the heat loss of the outer shell 20.

[0082] In one embodiment of the present application, Figure 2 , Figure 3 and Figure 4 As shown, the inner wall surface of the shell 20 is provided with a first heating groove 22 and a second heating groove 23 which are arranged at equal intervals, that is, the first heating groove 22 and the second heating groove 23 are arranged on the inner wall surface of the shell 20 oppositely. Specifically, the first heating groove 22 is used to install the first heater 24, and the second heating groove 23 is used to install the second heater 25. The first heater 24 and the second heater 25 are preferably PTC heaters. The first heater 24 and the second heater 25 can perform secondary heating on the shell 20 to improve the curling effect and make up for the disadvantage that the hot air cannot fully denature the hair and the curling durability is poor. The main body 10 is provided with a first recessed portion 15 at a position corresponding to the first heating groove 22, and the main body 10 is provided with a second recessed portion 16 at a position corresponding to the second heating groove 23. The provision of the first recessed portion 15 and the second recessed portion 16 can avoid interference between the main body 10 and the first heating groove 22 and the second heating groove 23 during the installation process, so that the main body 10 can be smoothly installed in the shell 20.

[0083] Further, if Figure 2 As shown, an anti-foolproof rib 151 is provided in the first recessed portion 15 . Specifically, a thermistor is connected to the second heater 25 in the second heating groove 23 , and the anti-foolproof rib 151 cannot be inserted into the housing 20 through the second heating groove 23 .

[0084] It should be noted that the specific structures of the PTC heater and the thermistor are both existing technologies, and the connection method between the PTC heater and the thermistor is also existing technology, which will not be repeated here.

[0085] In one embodiment of the present application, Figure 1 , Figure 8 and Fig. 9 As shown, the accessory of the handheld device also includes a top cover 40 and a conductive seat 50, wherein:

[0086] The top cover 40 is disposed on the first end of the housing 20 and connected to the first end of the main body 10. Specifically, a first threaded hole 41 is provided on the top cover 40. The top cover 40 and the main body 10 are connected by screws. The top cover 40 can prevent the main body 10 and the guide plate 30 from falling off from the housing 20. In addition, a limiting rib 42 is provided on the top cover 40. The limiting rib 42 can abut against the main body 10 to prevent the top cover 40 from squeezing the housing 20 and causing deformation of the housing 20 during installation.

[0087] The conductive seat 50 is covered on the second end of the housing 20 and connected to the second end of the main body 10. Specifically, a second threaded hole 51 is provided on the conductive seat 50. The conductive seat 50 and the main body 10 are also connected by screws. The connecting bracket is used to connect other electrical components.

[0088] The screw connection method facilitates the assembly and disassembly of the top cover 40 and the conductive seat 50 , thereby making the assembly and disassembly of the top cover 40 and the conductive seat 50 simple and convenient.

[0089] Furthermore, the main body 10 is made of polyphenylene sulfide (PPS), and the guide plate 30 is made of polyphenylene sulfide. Polyphenylene sulfide is a new type of high-performance thermoplastic resin with very good heat resistance. The thermal deformation temperature is generally greater than 260°C and can be used within the temperature range of 180~220°C. PPS is one of the most heat-resistant varieties of engineering plastics and can effectively ensure the service life of the accessories of the handheld device.

[0090] Furthermore, the cross section of the housing 20 is annular, which can make the hair more easily wound. Of course, the cross section of the housing 20 can also be elliptical.

[0091] Furthermore, the outer shell 20 is an aluminum shell, which can improve the heat conduction efficiency and enhance the curling effect. Of course, the outer shell 20 can also be made of polyphenylene sulfide. Embodiment 2

[0092] This embodiment provides an accessory for a handheld device. The difference between the accessory for the handheld device of this embodiment and the accessory for the handheld device of the first embodiment is that: Fig.10 As shown, the guide plate 311 is provided with a diverter rib 3111, and the diverter rib 3111 is configured to separate the guide hole 31 to form at least two guide channels. The flowing gas changes the wind outlet angle through the diverter rib 3111 and converges to the middle, making the airflow more stable, thereby shortening the winding and shaping time and improving the curling effect.

[0093] It has been verified through experiments that, under the same motor model conditions, the air output of the accessory without diverter rib 3111 is 15.3CFM, and the air output of the accessory with diverter rib 3111 is 19.7CFM. The air output of the accessory with diverter rib 3111 can be increased by about 20% compared with the accessory without diverter rib 3111.

[0094] The other structures and installation methods of this embodiment are the same as those of the first embodiment and will not be described in detail here. Embodiment 3

[0095] This embodiment provides an accessory for a handheld device. The difference between the accessory for the handheld device of this embodiment and the accessory for the handheld device of the first embodiment is that: Fig.13As shown, only the air outlet 21 is provided on the housing 20, that is, the first heating groove 22 and the second heating groove 23 are not provided on the inner wall surface of the housing 20, and correspondingly, the first recessed portion 15 and the second recessed portion 16 are not provided on the main body 10, and as shown Fig.11 , Fig.12 and Fig.13 As shown, a heating area 13 is provided on the outer wall surface of the main body 10, and the heating area 13 is located between two adjacent air outlet areas 12. A plurality of hot air holes 131 arranged side by side and at intervals are provided on the heating area 13. Preferably, the plurality of hot air holes 131 are arranged at equal intervals, and the hot air holes 131 are configured to guide the hot air to the inner wall surface of the outer shell 20, so as to heat the outer shell 20 by the hot air, thereby uniformly heating the hair wrapped around the outer shell 20, so as to achieve a better styling effect.

[0096] The other structures and installation methods of this embodiment are the same as those of the first embodiment and will not be described in detail here. Embodiment 4

[0097] like Fig.14 As shown, the present application also provides a handheld device, which includes the accessories of the handheld device mentioned above.

[0098] The handheld device of the present application has the above-mentioned accessories. Therefore, the handheld device of the present application has all the advantages of the above-mentioned accessories, which will not be repeated here.

[0099] Preferably, the handheld device can be a curling iron, or a curling iron connected to a hair dryer.

[0100] Further, if Fig.14 As shown, the handheld device also includes a host 60, in which a control circuit board and a coupler 61 are installed. The coupler 61 is electrically connected to the control circuit board, and the accessory of the handheld device is electrically connected to the coupler 61. Specifically, an accessory circuit board 52 is provided in the connector, and the accessory circuit board 52 can be electrically connected to the PTC heater. The plug spring 521 on the accessory circuit board 52 is connected with a conductive pin 53, and the conductive pin 53 is connected to the spring pin 611 on the coupler 61. The spring pin 611 of the coupler 61 is connected to the control circuit board. The conductive pin 53 transmits the signal to the control circuit board through the spring pin 611 on the coupler. The control circuit board confirms whether the accessory has a secondary heating function (whether it has a PTC heater). The control circuit board determines whether the accessory has a secondary heating function. If so, the control circuit board controls the operation of the accessory's PTC heater, thereby making the operation of controlling the function of the PTC heater simple and convenient.

[0101] It should be noted that the structures such as the control circuit board, the coupler, the plug spring, the conductive pin and the spring pin are all prior art, and the specific connection method between the various components is also prior art, which will not be repeated here.

[0102] In summary, the accessory of the handheld device of the present application guides the flowing gas through the guide plate, so that the hair blown by the flowing gas is wrapped around the outer wall surface of the shell under the action of the Coanda effect to complete the curling function, and the user does not need to wrap the hair around the heating tube, which not only avoids the occurrence of burns, but also saves time and effort;

[0103] The attachment of the handheld device of the present application, by arranging diverter ribs on the guide plate, changes the outlet angle of the flowing gas to converge to the middle, and the airflow is more stable, thereby shortening the winding and shaping time and improving the curling effect;

[0104] The attachment of the handheld device of the present application makes the installation of the main body simpler and more convenient by providing anti-fool convex ribs;

[0105] The accessory of the handheld device of the present application reduces the contact area between the guide plate and the housing by providing the first connection rib, which not only makes it easier to insert the guide plate into the housing, but also avoids the influence of deformation of the guide plate during installation, and reduces the influence of the guide plate on the heat loss of the housing; and reduces the contact area between the main body and the housing by providing the second connection rib, which not only makes it easier to insert the main body into the housing, but also reduces the influence of the main body on the heat loss of the housing;

[0106] The handheld device of the present application has the above-mentioned accessories, and therefore, the handheld device of the present application has all the advantages of the above-mentioned accessories.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An accessory for a handheld device, characterized in that: The accessories of the handheld device include: A main body having an air guide channel, wherein a plurality of air outlet areas arranged at intervals are arranged on an outer wall surface of the main body in a circumferential direction, each of the air outlet areas is provided with a plurality of ventilation holes arranged side by side and at intervals, and each of the ventilation holes is connected to the air guide channel; A shell, which is in a cylindrical shape, is sleeved on the outside of the main body, and is provided with a plurality of air outlets corresponding to the ventilation holes one by one; A guide vane group is installed between the shell and the main body, the guide vane group includes a plurality of guide vanes corresponding to each of the air outlet areas, the guide vanes are provided with a plurality of guide holes arranged side by side and at intervals, the guide holes are configured to connect the corresponding ventilation holes and the air outlets, a guide plate is provided in the guide hole, and the guide plate is configured to make the airflow flow along the circumference of the shell.

2. The accessory for a handheld device according to claim 1, characterized in that: The surface of the guide plate facing the housing is a mounting surface, and snap-fit ​​convex ribs are provided on the mounting surface at peripheral positions corresponding to the guide holes, and the snap-fit ​​convex ribs are configured to snap-fit ​​with the corresponding air outlets.

3. The accessory for a handheld device according to claim 2, characterized in that: The mounting surface is also provided with a plurality of first connection ribs spaced apart and arranged side by side, the first connection ribs extending along the length direction of the mounting surface, and the first connection ribs being configured to be connected to the inner surface of the housing.

4. The accessory for a handheld device according to claim 2, characterized in that: The guide plate is provided with flow dividing ribs, and the flow dividing ribs are configured to separate the guide holes into at least two guide channels.

5. The accessory for a handheld device according to claim 1, characterized in that: The outer wall surface of the main body is provided with a guide rib, the guide rib extends along the axial direction of the main body, and the guide rib is configured to be inserted between two adjacent guide plates.

6. The accessory for a handheld device according to claim 5, characterized in that: The guide rib is provided with a second connecting convex rib, and the second connecting convex rib is configured to be connected to the inner surface of the shell.

7. The accessory for a handheld device according to claim 1, characterized in that: The inner wall surface of the shell is provided with a first heating groove and a second heating groove arranged at equal intervals, the main body is provided with a first recessed portion at a position corresponding to the first heating groove, and the main body is provided with a second recessed portion at a position corresponding to the second heating groove.

8. The accessory for a handheld device according to claim 7, characterized in that: The first recessed portion is provided with an anti-fouling convex rib.

9. The accessory for a handheld device according to claim 1, characterized in that: A heating area is also provided on the outer wall surface of the main body, and the heating area is located between two adjacent air outlet areas. A plurality of hot air holes arranged side by side and at intervals are provided on the heating area, and the hot air holes are configured to guide the hot air to the inner wall surface of the shell.

10. The accessory for a handheld device according to claim 1, characterized in that: The ventilation hole, the guide hole and the air outlet are connected in sequence to form an air outlet flow channel, and the angle between the air outlet flow channel and the normal axis of the plane where the air outlet is located ranges from 30° to 90°.

11. The accessory for a handheld device according to claim 10, characterized in that: The height of the air outlet end of the air outlet flow channel is h, 0.45mm≤h≤0.9mm.

12. The accessory for a handheld device according to claim 1, characterized in that: The accessories of the handheld device also include: A top cover, which is disposed on the first end of the shell and connected to the first end of the main body; The conductive seat is covered at the second end of the shell and connected to the second end of the main body.

13. The accessory for a handheld device according to claim 1, characterized in that: The main body is made of polyphenylene sulfide.

14. The accessory for a handheld device according to claim 1, characterized in that: The guide plate is made of polyphenylene sulfide.

15. The accessory for a handheld device according to claim 1, characterized in that: The cross section of the shell is in a circular ring shape.

16. The accessory for a handheld device according to claim 15, characterized in that The shell is an aluminum shell.

17. A handheld device, characterized in that: The handheld appliance comprises an accessory for a handheld appliance as claimed in any one of claims 1 to 16.

18. The handheld device according to claim 17, characterized in that The handheld device also includes a host, in which a control circuit board and a coupler are installed. The coupler is electrically connected to the control circuit board, and the accessory of the handheld device is electrically connected to the coupler.

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