Air outlet component and portable fan

Abstract

The invention provides an air outlet component which comprises a shell, the shell comprises a cavity, an air inlet and an air outlet, the air inlet and the air outlet communicate with the cavity, the cavity is provided with an air inlet cavity, a fixing cavity, an air duct and a containing cavity in the length direction, the air inlet communicates with the air inlet cavity, and the air outlet communicates with the air duct; the braking assembly is contained in the fixing cavity and used for sucking air from the air inlet, and the air passes through the air inlet cavity, the braking assembly and the air duct and then is blown out from the air outlet; the control assembly is contained in the containing cavity and arranged at the first end of the shell, and the first end is a free end; wherein the control assembly comprises a power supply part for supplying power to the brake assembly and a control part for controlling the brake assembly, the power supply part is electrically connected with the control part, and the control part is electrically connected with the brake assembly. The air inlet cavity, the fixing cavity, the air channel and the containing cavity are formed in the length direction, the internal space is reasonable in design, the whole air outlet component is slender and uniform, and a user can use the air outlet component comfortably.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fans, in particular to a layout reasonable air outlet component and a portable fan. BACKGROUND

[0002] In recent years, people are increasingly pursuing a more convenient life, in order to meet the needs of outdoor activities or other life scenes to use the fan, the market has appeared all kinds of portable fan products, such as handheld fan, hanging neck type fan and so on.

[0003] At present, the portable fan usually sets the air duct and the fixed cavity accommodating the fan together transversely, or sets the air duct and the accommodating cavity accommodating the battery together transversely, and the layout of the portable fan is not reasonable. SUMMARY

[0004] In view of this, the present application provides an air outlet component and a portable fan, by setting the air inlet cavity, the fixed cavity, the air duct and the accommodating cavity along the length direction, the brake assembly is accommodated in the fixed cavity, the control assembly is accommodated in the accommodating cavity, the internal space is designed reasonably, which is conducive to making the air outlet component whole slender and symmetrical, and the user uses comfortably.

[0005] The present application provides an air outlet component, comprising: a shell, comprising a cavity, and an air inlet and an air outlet communicating with the cavity, the cavity is provided with an air inlet cavity, a fixed cavity, an air duct and an accommodating cavity along the length direction, the air inlet communicates with the air inlet cavity, and the air outlet communicates with the air duct; a brake assembly accommodated in the fixed cavity, the brake assembly is used for sucking air from the air inlet, and blowing out from the air outlet via the air inlet cavity, the brake assembly and the air duct; a control assembly accommodated in the accommodating cavity and arranged at a first end of the shell, the first end is a free end; wherein the control assembly comprises a power supply for providing power for the brake assembly, and a control component for controlling the brake assembly, the power supply and the control component are electrically connected, and the control component and the brake assembly are electrically connected.

[0006] Further, the length of the air duct is 4-6 times the length of the air inlet cavity, the maximum cross-sectional area of the air duct is smaller than the minimum cross-sectional area of the air inlet cavity, the maximum cross-sectional area of the fixed cavity is smaller than or equal to the minimum cross-sectional area of the air inlet cavity, and the minimum cross-sectional area of the fixed cavity is greater than or equal to the maximum cross-sectional area of the air duct.

[0007] Further, the part of the shell in the fixed cavity is cylindrical, the diameter of the part of the shell in the fixed cavity is 28-35mm, and the length of the part of the shell in the fixed cavity is 30-40mm.

[0008] Further, the brake assembly comprises a motor and a fan, the motor comprises a cylinder, a stator assembly and a rotor assembly, the motor is a three-phase high-speed motor, at least part of the fan is arranged in the cylinder.

[0009] Further, the brake assembly further comprises a buffer sleeve arranged outside the cylinder, the buffer sleeve comprises an annular part, and a plurality of convex parts are arranged on the outer surface of the annular part, at least part of the plurality of convex parts is compressed when the brake assembly is accommodated in the fixing cavity.

[0010] Further, a first limiting part is arranged between the fixing cavity and the air inlet cavity, a second limiting part is arranged between the fixing cavity and the air duct, the buffer sleeve further comprises a wrapping part connecting two ends of the buffer sleeve, the wrapping part at one end isolates and buffers the end part of the cylinder and the first limiting part, and the wrapping part at the other end isolates and buffers the end part of the cylinder and the second limiting part.

[0011] Further, the cylinder comprises an outer ring part, an inner ring part, and a plurality of connecting leaves connecting the outer ring part and the inner ring part, the inner ring part is arranged on the side of the outer ring part close to the air duct, a base plate is arranged in the inner ring part, a hollow shaft cylinder axially extends from the base plate towards the air inlet cavity, the rotor assembly comprises a rotating shaft, a bearing and a magnetic ring, the rotating shaft and at least one bearing are arranged in the shaft cylinder, the stator assembly is arranged radially outside the rotating shaft and the shaft cylinder, and the magnetic ring is arranged radially outside the stator assembly; the fan is arranged on the side of the outer ring part close to the air inlet cavity, and the fan is fixed on the rotating shaft.

[0012] Further, the rotor assembly further comprises a machine shell, the machine shell is sleeved outside the magnetic ring, the machine shell is tightly matched with the rotating shaft, the fan comprises a hub and a plurality of blades arranged on the outer side of the hub, the diameter of the largest cross section of the hub, the diameter of the machine shell and the diameter of the inner ring part differ by less than 2mm; an accommodation part is formed on the side of the base plate facing the air duct, a driving plate is arranged in the accommodation part, the control member is electrically connected with the driving plate, the base plate further comprises a notch, and a wire electrically connects the stator assembly and the driving plate through the notch.

[0013] Further, the air inlet cavity is arranged at the second end of the shell, the air inlet is arranged through the end surface and / or the side surface of the second end, the length of the air inlet cavity is 20-30mm; the control member is closer to the first end than the power supply member, and the control member comprises a switch or an interface exposed outside the first end.

[0014] This application also provides a portable fan, including the aforementioned air outlet component. The portable fan includes two air outlet components, which are fixedly connected or pivotally connected. The connection point of the two air outlet components is located at one of the following locations: the second end of the housing, the side of the housing near the second end, or the connection point of the second end and the side of the housing. Alternatively, the portable fan includes one air outlet component, and the housing is symmetrically provided with two air inlet chambers, two fixed chambers, two air ducts, and two receiving chambers. Two braking components are respectively disposed in the two fixed chambers, and two control components are respectively disposed in the two receiving chambers.

[0015] Compared with the prior art, the air outlet component and portable fan of this application have the following beneficial effects: by arranging the air inlet cavity, the fixed cavity, the air duct and the receiving cavity along the length direction, the braking component is housed in the fixed cavity and the control component is housed in the receiving cavity, the internal space is reasonably designed, which helps to make the air outlet component slender and symmetrical as a whole, and makes it comfortable for users to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the portable fan described in this application;

[0017] Figure 2 This is a cross-sectional view of the portable fan of this application;

[0018] Figure 3 This is a partial exploded view of the portable fan of this application;

[0019] Figure 4 yes Figure 2 Enlarged view of section C;

[0020] Figure 5 This is a cross-sectional view of the braking component of this application. Detailed Implementation

[0021] To facilitate a better understanding of the purpose, structure, features, and effects of this application, the application will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0022] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present.

[0023] In this application, the use of terms such as "first" and "second" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0024] In the description of this application, the terms "front", "rear", "left", "right", "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] In one embodiment, such as Figure 1 and Figure 2 The diagram shows a portable fan according to this application. The portable fan includes an air outlet component 100, which includes a housing 1, a braking assembly, and a control assembly 4. The housing 1 includes a cavity and an air inlet 11 and an air outlet 12 communicating with the cavity. The cavity has an air inlet chamber 13, a fixed chamber 14, an air duct 15, and a receiving chamber 16 along its length. The air inlet 11 communicates with the air inlet chamber 13, and the air outlet 12 communicates with the air duct 15. The braking assembly is housed in the fixed chamber 14 and is used to draw air in from the air inlet 11, through the air inlet chamber 13, the braking assembly, and the air duct 15, and then blow it out from the air outlet 12. The control assembly 4 is housed in the receiving chamber 16. The control assembly 4 includes a power supply component 41 that provides power to the braking assembly, and a control component 42 that controls the braking assembly. The power supply component 41 is electrically connected to the control component 42, and the control component 42 is electrically connected to the braking assembly. By arranging the air inlet cavity 13, the fixed cavity 14, the air duct 15, and the receiving cavity 16 along the length direction, the braking component is housed in the fixed cavity 14, and the control component is housed in the receiving cavity 16. The internal space is reasonably designed, which helps to make the air outlet component slender and symmetrical as a whole, and makes it comfortable for users to use.

[0026] It should be understood that in this embodiment, the air inlet cavity 13, the fixed cavity 14, the air duct 15, and the receiving cavity 16 are sequentially arranged along the length direction of the cavity. Of course, in other embodiments, the air inlet cavity 13, the fixed cavity 14, and the air duct 15 may also be sequentially arranged along the length direction of the cavity, and the receiving cavity 16 may be located on one side of the air inlet cavity 13 or on one side of the air duct 15.

[0027] In one embodiment, such as Figures 1 to 3As shown, the length of the air inlet cavity 13 is 20-30mm, and the length of the air duct 15 is 4-6 times the length of the air inlet cavity 13. The maximum cross-sectional area of ​​the air duct 15 is smaller than the minimum cross-sectional area of ​​the air inlet cavity 13, the maximum cross-sectional area of ​​the fixed cavity 14 is less than or equal to the minimum cross-sectional area of ​​the air inlet cavity 13, and the minimum cross-sectional area of ​​the fixed cavity 14 is greater than or equal to the maximum cross-sectional area of ​​the air duct 15. The cross-sections of the air inlet cavity 13, the fixed cavity 14, and the air duct 15 decrease along their lengths, and the transitions between adjacent air inlets 13, fixed cavities 14, and air ducts 15 are smooth. The air inlet cavity 13 is short in length but has a large cross-section, which is beneficial for air intake and airflow guidance, increasing the air intake volume. Furthermore, the air inlet cavity 13 effectively avoids turbulence and noise caused by direct contact between external airflow and the braking assembly. The cross-section of the air duct 15 is small, and the air generated by the braking component is pressurized and concentrated in the air duct 15 to enhance the air outlet effect; the length of the air duct 15 is long, which can increase the air outlet range and improve the blowing experience.

[0028] In one embodiment, such as Figures 1 to 3 As shown, the portion of the housing 1 within the fixing cavity 14 is cylindrical, with a diameter of 28-35 mm and a length of 30-40 mm. The smaller diameter of the fixing cavity 14 allows for a smaller overall cross-section of the housing 1, resulting in a relatively slender and well-proportioned portable fan that is easy to carry. The smaller length of the fixing cavity 14 also allows for a more reasonable design of the air duct 15 for airflow.

[0029] In one embodiment, such as Figures 2 to 4 As shown, the braking assembly includes a motor 2 and a fan 3. The motor 2 includes a cylinder 21, a stator assembly 22, and a rotor assembly 23. The motor 2 is a three-phase high-speed motor, which can provide high-speed and stable rotational speed, improving the airflow effect. At least a portion of the fan 3 is disposed within the cylinder 21. In this embodiment, the entire fan 3 is disposed within the cylinder 21, thus the braking assembly has a compact and reasonable structure, occupying a shorter length of the cavity. Of course, in other embodiments, a portion of the fan 2 may protrude from the cylinder 21.

[0030] In one embodiment, such as Figures 2 to 4As shown, the braking assembly further includes a buffer sleeve 33 disposed outside the cylinder 21. The buffer sleeve 33 includes an annular portion 331 and a plurality of protrusions 332 spaced around the outer surface of the annular portion 331. When the braking assembly is received in the fixed cavity 14, at least a portion of the plurality of protrusions 332 is compressed, thereby the braking assembly can be securely fixed in the fixed cavity 14. The buffer sleeve 33 provides the braking assembly with strong friction and shock absorption capacity, effectively reducing the noise generated by the braking assembly.

[0031] In one embodiment, such as Figures 2 to 4 As shown, a first limiting part 17 is provided between the fixed cavity 14 and the air inlet cavity 13, and a second limiting part 18 is provided between the fixed cavity 14 and the air duct 15. The buffer sleeve 33 also includes a wrapping part 333 connecting the two ends of the buffer sleeve 33. The wrapping part 333 at one end isolates and buffers the end of the cylinder 21 and the first limiting part 17, and the wrapping part 333 at the other end isolates and buffers the end of the cylinder 21 and the second limiting part 18. The wrapping part 333 further provides buffering and shock absorption capacity for the braking assembly, further reducing the noise generated by the braking assembly. In addition, the cooperation of the first limiting part 17, the second limiting part 18 and the wrapping parts 333 at both ends further limits the axial movement of the braking assembly. Therefore, the braking assembly is firmly fixed in the fixed cavity 14, and the braking assembly can generate air stably, continuously and with low noise. The material of the buffer sleeve 33 can be silicone, foam, or other materials with buffering capacity, without limitation. Of course, in other embodiments, the braking assembly may not have the buffer sleeve 33.

[0032] In one embodiment, such as Figure 4 and Figure 5As shown, the cylindrical body 21 includes an outer ring portion 211, an inner ring portion 212, and a plurality of connecting blades 213 connecting the outer ring portion 211 and the inner ring portion 212. The inner ring portion 212 is located on the side of the outer ring portion 211 near the air duct 15, and the inner ring portion 212 protrudes slightly towards the air duct 15. This allows for more space on the side of the outer ring portion 211 facing the air inlet cavity 13 to accommodate other structures, resulting in a reasonable spatial layout within the cylindrical body 21. A base plate 214 is provided inside the inner ring portion 212, and a hollow shaft cylinder 215 extends axially from the base plate 214 towards the air inlet cavity 13. The rotor assembly 23 includes a rotating shaft 231, a bearing 232, and a magnetic ring 233. The rotating shaft 231 and at least one bearing 232 are located within the shaft cylinder 215. In this embodiment, the number of bearings 232 is two, with both bearings 232 located within the shaft cylinder 215. Of course, one of the two bearings 232 can be located inside the shaft sleeve 215, and the other can be located outside the shaft sleeve 215, as long as a stable fit between the rotating shaft 231 and the shaft sleeve 215 can be ensured. The stator assembly 22 is located on the radial outer side of the rotating shaft 231 and the shaft sleeve 215, and the magnetic ring 233 is located on the radial outer side of the stator assembly 22; the fan 3 is located on the side of the outer ring portion 211 near the air inlet cavity 13, and the fan 3 is fixed on the rotating shaft 231.

[0033] In one embodiment, such as Figure 4 and Figure 5 As shown, the rotor assembly 23 also includes a housing 234, which is fitted around the magnetic ring 233 and tightly fitted with the rotating shaft 231. The fan 3 is fixed to the rotating shaft 231, and is coaxially arranged with the motor 2. The stator assembly 22 generates a magnetic field, causing the magnetic ring 233 and the housing 234 to rotate. The housing 234 drives the rotating shaft 231 and the fan 3 to rotate simultaneously. This eliminates the need for a separate transmission device for the motor 2 and the fan 3, effectively improving the transmission efficiency of the portable fan.

[0034] In one embodiment, such as Figure 4 and Figure 5As shown, the fan 3 includes a hub 31 and a plurality of blades 32 spaced around the outside of the hub 31. The difference between any two of the diameter of the maximum cross-section of the hub 31, the diameter of the housing 234, and the diameter of the inner ring 212 is less than 2 mm. The air generated by the plurality of blades 32 can smoothly pass through the area between the housing 234 and the outer ring 211, and the area between the inner ring 212 and the outer ring 211, and be blown towards the air duct 15. The hub 31, the housing 234, and the inner ring 212 are axially arranged, and their diameters are similar, resulting in a compact structure for the motor 2 and the fan 3. In this embodiment, the fan 3 is a diagonal-flow fan, with the hub 31 increasing radially from the air inlet 13 towards the air duct 15, and the outer surface of the hub 31 being arc-shaped outwards, which helps to increase air pressure and enhance airflow efficiency. In other embodiments, the fan 3 can also be an axial-flow fan.

[0035] In one embodiment, such as Figure 4 and Figure 5 As shown, the inner ring portion 212 forms a receiving portion 216 on the side of the substrate 214 facing the air duct 15. The drive plate 24 is disposed in the receiving portion 216, and the control member 42 is electrically connected to the drive plate 24. The receiving portion 216 is directly formed by the inner ring portion 212, that is, the drive plate 24 is directly snapped into the inner ring portion 212 and is disposed facing the air duct 15, which facilitates the connection of the drive plate 24 with other electrical components. The substrate 214 also has a notch (not shown, the same below), and the wires are electrically connected to the stator assembly 22 and the drive plate 24 through the notch.

[0036] In one embodiment, such as Figures 1 to 3As shown, the portable fan is a neck fan, comprising two air outlet components 100. Two receiving cavities 16 are respectively located at the first end 1A of the two housings 1, where the first end 1A is a free end. Two air inlet cavities 13 are respectively located at the second end 1B of the two housings 1, where the second end 1B is a connecting end. An air inlet 11 penetrates the end face and / or side face of the second end 1B. The control component 42 is closer to the first end 1A than the power supply component 41. The control component 42 includes a switch 43 or interface 44 exposed outside the first end 1A. The two air outlet components 100 are pivotally connected, with the connection point located at the junction of the second end 1B and the side face of the housing 1. The user can rotate the two air outlet components 100 outwards for easy wearing or removal; the user can also rotate the two air outlet components 100 inwards to secure them around the neck and prevent them from slipping off. Furthermore, the two air outlet components 100 are connected at a location close to the user's neck. Therefore, during the outward opening and inward closing of the two air outlet components 100, they will not pinch the user's neck, making the user safer. In other embodiments, the two air outlet components 100 may also be connected at the second end 1B of the housing 1, or at the side of the housing 1 near the second end 1B. In other embodiments, the two air outlet components 100 may also be fixedly connected.

[0037] Of course, it should be understood that in other embodiments, the portable fan may have only one air outlet component 100, and the housing 1 may have two air inlet chambers 13, two fixed chambers 14, two air ducts 15, and two receiving chambers 16 symmetrically arranged inside. Two braking components are respectively disposed in the two fixed chambers 14, and two control components 4 are respectively disposed in the two receiving chambers 16. Furthermore, in other embodiments, the portable fan may be a handheld fan, a clip-on fan, a versatile fan, or other portable fan, and is not limited to this example.

[0038] The above detailed description is only an illustration of the preferred embodiment of this application and is not intended to limit the patent scope of this application. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. An air outlet component, characterized in that, include: The housing includes a cavity, and an air inlet and an air outlet communicating with the cavity. The cavity is provided with an air inlet cavity, a fixed cavity, an air duct and a receiving cavity along its length. The air inlet communicates with the air inlet cavity and the air outlet communicates with the air duct. A braking assembly is housed in the fixed cavity. The braking assembly is used to draw air in from the air inlet, pass through the air inlet cavity, the braking assembly and the air duct, and then blow it out from the air outlet. A control component is housed in the receiving cavity and disposed at a first end of the housing, the first end being a free end; The control component includes a power supply unit that provides power to the braking component, and a control unit that controls the braking component. The power supply unit is electrically connected to the control unit, and the control unit is electrically connected to the braking component.

2. The air outlet component as described in claim 1, characterized in that: The length of the air duct is 4-6 times the length of the air inlet cavity. The maximum cross-sectional area of ​​the air duct is less than the minimum cross-sectional area of ​​the air inlet cavity. The maximum cross-sectional area of ​​the fixed cavity is less than or equal to the minimum cross-sectional area of ​​the air inlet cavity. The minimum cross-sectional area of ​​the fixed cavity is greater than or equal to the maximum cross-sectional area of ​​the air duct.

3. The air outlet component as described in claim 1, characterized in that: The portion of the housing within the fixed cavity is cylindrical, with a diameter of 28-35 mm and a length of 30-40 mm.

4. The air outlet component as described in claim 1, characterized in that: The braking assembly includes a motor and a fan. The motor includes a cylinder, a stator assembly, and a rotor assembly. The motor is a three-phase high-speed motor. At least a portion of the fan is located inside the cylinder.

5. The air outlet component as described in claim 4, characterized in that: The braking assembly further includes a buffer sleeve disposed outside the cylinder. The buffer sleeve includes an annular portion and a plurality of protrusions spaced around the outer surface of the annular portion. When the braking assembly is received in the fixed cavity, at least a portion of the plurality of protrusions is compressed.

6. The air outlet component as described in claim 5, characterized in that: A first limiting part is provided between the fixed cavity and the air inlet cavity, and a second limiting part is provided between the fixed cavity and the air duct. The buffer sleeve also includes a wrapping part connecting the two ends of the buffer sleeve. The wrapping part at one end isolates and buffers the end of the cylinder and the first limiting part, and the wrapping part at the other end isolates and buffers the end of the cylinder and the second limiting part.

7. The air outlet component as described in claim 4, characterized in that: The cylinder includes an outer ring portion, an inner ring portion, and a plurality of connecting blades connecting the outer ring portion and the inner ring portion. The inner ring portion is located on the side of the outer ring portion near the air duct. A base plate is provided inside the inner ring portion. A hollow shaft extends axially from the base plate toward the air inlet cavity. The rotor assembly includes a rotating shaft, a bearing, and a magnetic ring. The rotating shaft and at least one bearing are located inside the shaft. The stator assembly is located radially outside the rotating shaft and the shaft. The magnetic ring is located radially outside the stator assembly. The fan is located on the side of the outer ring portion near the air inlet cavity and is fixed to the rotating shaft.

8. The air outlet component as described in claim 7, characterized in that: The rotor assembly also includes a housing, which is fitted around the outside of the magnetic ring and is tightly fitted with the rotating shaft. The fan includes a hub and a plurality of blades spaced around the outside of the hub. The difference between any two of the diameter of the maximum cross section of the hub, the diameter of the housing, and the diameter of the inner ring is less than 2 mm. The inner ring has a receiving portion formed on the side of the substrate facing the air duct. A drive plate is disposed in the receiving portion. The control component is electrically connected to the drive plate. The substrate also has a notch, through which wires are electrically connected to the stator assembly and the drive plate.

9. The air outlet component as described in claim 1, characterized in that: The air inlet cavity is located at the second end of the housing, and the air inlet is located through the end face and / or side face of the second end. The length of the air inlet cavity is 20-30mm. The control component is closer to the first end than the power supply component. The control component includes a switch or interface exposed outside the first end.

10. A portable fan, comprising an air outlet component as described in any one of claims 1-9, characterized in that: The portable fan includes two air outlet components, which are fixedly or pivotally connected. The two air outlet components are connected at one of the following locations: the second end of the housing, the side of the housing near the second end, or the location where the second end and the side of the housing are connected. or, The portable fan includes an air outlet component, and the housing is symmetrically provided with two air inlet chambers, two fixed chambers, two air ducts and two receiving chambers. The two braking components are respectively disposed in the two fixed chambers, and the two control components are respectively disposed in the two receiving chambers.

Images