CN218479935U - Portable fan - Google Patents

Abstract

The utility model provides a portable fan, include the main casing body and locate fan subassembly in the main casing body, correspond on the main casing body the fan subassembly is equipped with air intake and air outlet, a serial communication port, portable fan still includes the shell, the shell surround in outside the main casing body, in order to shelter from the air intake, the main casing body with have between the shell with the clearance of air intake and external intercommunication.

Description

Portable fan

Technical Field

The utility model relates to a fan technical field, in particular to portable fan.

Background

In hot summer, electric fans, air conditioners and the like are cooling devices most commonly used by people, but the cooling devices can only be used indoors and cannot be carried about, when people go out or have a rest in the open, the people can only cool themselves by using fans or natural wind, but the people do not have the natural wind many times and are tired. To this kind of condition, various portable fans have appeared on the market, these fans are handheld or hang the neck mostly, and the air intake of current handheld or hang portable fan of neck sets up on the surface of casing, and when the user used, often can be touched the shutoff by finger or clothes and arrive the air intake to influence the air inlet of fan, lead to influencing the use of fan, brought inconvenience for the user.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a portable fan capable of effectively solving the above problems.

The utility model provides a portable fan, include the main casing body and locate fan subassembly in the main casing body, correspond on the main casing body the fan subassembly is equipped with air intake and air outlet, portable fan still includes the shell, the shell surround in outside the main casing body, in order to shelter from the air intake, the main casing body with have between the shell with the clearance of air intake and external intercommunication.

In an embodiment, the portable electronic device further comprises a hanging rope connected to the main housing, and a receiving groove for receiving the hanging rope is formed in a side surface of the main housing.

In one embodiment, the main housing is provided with a switch, the switch and the air outlet are located on the top surface of the main housing, the two opposite side surfaces of the main housing and the positions close to the top surface are respectively provided with a convex block, and two ends of the hanging rope are respectively connected with the two convex blocks.

In one embodiment, a containing cavity is arranged in the housing, the main housing can slide between a containing position and an extending position relative to the housing, when the housing is at the containing position, the main housing is contained in the containing cavity, and the housing shields the air inlet and the containing groove; when the main shell is at the extending position, at least part of the main shell extends out of the containing cavity and exposes out of the containing groove.

In an embodiment, a sliding structure is disposed between the outer casing and the main casing, the sliding structure includes a sliding guide rail and a sliding guide groove, the sliding guide rail and the sliding guide groove are slidably engaged with each other, the sliding guide rail is disposed on one of an inner wall surface of the outer casing and an outer wall surface of the main casing, and the sliding guide groove is disposed on the other of the inner wall surface of the outer casing and the outer wall surface of the main casing.

In one embodiment, the sliding guide groove is formed by two ribs which are arranged in parallel at intervals, and one ends of the two ribs close to the top surface of the shell are connected with each other.

In an embodiment, the receiving groove is circumferentially arranged along a circumference of the main housing.

In one embodiment, the receiving groove extends through the air inlet.

In one embodiment, the housing is a structure with two open ends to expose the top and bottom surfaces of the main housing; or, the shell is of a top end opening structure so as to expose the top surface of the main shell.

In one embodiment, a plurality of through holes are formed in four surfaces of the housing surrounding the main housing, and the arrangement area of the through holes covers most of the area of each surface of the housing; and/or the distance between the inner surface of the outer shell and the outer surface of the main shell is 0.5-3 mm.

To sum up, the utility model provides a portable fan sets up the clearance between the main casing body and shell, the clearance forms the inlet air channel of fan, the shell shelters from the air intake on the main casing body, the air intake passes through clearance and external intercommunication air inlet between the main casing body and the shell, make the user can not contact the air intake in order to influence the fan air inlet when taking the fan to use, and the shell shelters from the air intake, hide the air intake in the shell, can prevent effectively that user's hair or finger from the air intake stretch into by the fan wheel incised wound in the fan, make the product use safer and the appearance is whole pleasing to the eye.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of the main housing in a storage state after the portable fan is stored with the hanging rope;

fig. 2 is a schematic perspective view of the main housing in an extended state after the portable fan of the present invention is stored in the hanging rope;

fig. 3 is a schematic three-dimensional structure diagram of the main housing in an extended state after the hanging rope of the portable fan of the present invention is taken out;

fig. 4 is a schematic three-dimensional structure diagram of the main housing in a storage state after the hanging rope of the portable fan of the present invention is taken out;

FIG. 5 is an exploded view of the portable fan of FIG. 1 at an angle;

FIG. 6 is an exploded view of the portable fan of FIG. 1 at another angle;

fig. 7 is an exploded view of the fan assembly of the present invention;

fig. 8 is a perspective view of a portable fan according to another embodiment of the present invention.

Detailed Description

Before the embodiments are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The utility model discloses can be the embodiment that other modes realized. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element being one, and may include a plurality of the elements.

Referring to fig. 1 to 4, the present invention provides a portable fan 10, which includes a housing 12, a main housing 14, a fan assembly 16 disposed in the main housing 14, and a hanging rope connected to the main housing 14, wherein the main housing 14 is provided with an air inlet 26 and an air outlet 24 corresponding to the fan assembly 16. The housing 12 surrounds the main housing 14 to shield the air inlet 26, so that the overall appearance of the product is improved. The main housing 14 and the outer housing 12 have a gap 28 therebetween, which is communicated with the air inlet 26 and the outside, the gap 28 forms an air inlet passage of the fan, and the fan assembly 16 operates to suck air from the air inlet 26 to generate wind, and then blows the wind out from the air outlet 24.

It should be noted that in this embodiment, the portable fan 10 is provided with a hanging rope, and is a portable fan that can be held by hand and used for hanging a neck, and in other embodiments, the hanging rope may not be provided, and the portable fan 10 is only used by hand.

The utility model discloses a portable fan 10 can convert into multiple form, uses under different scenes. Specifically, the portable fan 10 is generally box-shaped, and in other embodiments, the portable fan 10 may be designed in other shapes. In this embodiment, the housing 12 has an opening structure at the upper and lower ends to expose the top and bottom surfaces of the main housing 14, and a receiving cavity 20 is formed in the housing 12. The main housing 14 is slidable relative to the housing 12 between a storage position and an extended position, wherein in the storage position, the main housing 14 is received in the receiving cavity 20, and the housing 12 covers the air inlet 26; in the extended position, the main housing 14 extends at least partially out of the receiving cavity 20. In other embodiments, the housing 12 may be open-top and closed-bottom, so that only the top surface of the main housing 14 is exposed, and thus the air outlet 24 of the main housing 14 is exposed.

In the illustrated embodiment, a receiving groove 22 is formed on a side surface of the main housing 14 for receiving the hanging cord 18, for example, the hanging cord 18 is wound and received in the receiving groove 22, so that when the hanging cord 18 is not needed to be used, for example, the portable fan 10 needs to be held by hand, the main housing 14 can be pulled out to wind and receive the hanging cord 18 in the receiving groove 22, thereby avoiding affecting the use of the portable fan. Preferably, the receiving groove 22 is circumferentially formed along the main housing 14 for easy operation by a user.

Referring further to fig. 5 and 6, the air outlet 24 is disposed on the upper end cover 15 of the main housing 14 at a position corresponding to the fan assembly 16, and the air inlet 26 is disposed on the side surface of the main housing 14 at a position corresponding to the fan assembly 16. In the illustrated embodiment, the air intakes 26 are disposed on both front and rear sides of the main housing 14 to ensure sufficient intake air. The gap 28 is formed between the outer surface of the main housing 14 and the inner surface of the housing 12, the air inlet 26 is communicated with the gap 28, and the upper and lower ends of the housing 12 are open so that the gap 28 is communicated with the outside, so that the air inlet 26 can simultaneously suck air from the upper and lower sides of the gap 28, thereby ensuring sufficient air supply and further ensuring the air suction requirement of the fan assembly 16, specifically, the distance between the inner surface of the housing 12 and the outer surface of the main housing 14 is 0.5 to 3mm, that is, the size of the gap 28 is 0.5 to 3mm, preferably 1.5mm, the size of the distance range can ensure that the air intake volume of the fan wheel 32 is met, and at the same time, impurities are prevented from falling into the gap 28 from the upper and lower ends of the housing 12, and the side wall of the housing 12 is prevented from being blocked to the air inlet 26, thereby causing influence on air inlet.

Further, the fan assembly 16 includes a volute 30 and two fan wheels 32, the fan wheels 32 are, for example, centrifugal fan wheels, and the two centrifugal fan wheels are used to enable the fan to blow air with a large air volume. Specifically, the volute 30 includes a first volute portion 34 and a second volute portion 36 integrally disposed in parallel along the length direction of the main housing 14, and the two fans 32 are respectively mounted in the first volute portion 34 and the second volute portion 36. The first volute portion 34 and the second volute portion 36 are disposed on a side facing the air outlet 24, that is, the upper ends of the first volute portion 34 and the second volute portion 36 are respectively provided with a first air outlet portion 38 and a second air outlet portion 40, and the first volute portion 34 and the second volute portion 36 are respectively provided with a first air inlet portion 42 and a second air inlet portion 44 corresponding to the air inlet 26, so as to facilitate air inlet of the fan wheel 32.

Further, as shown in fig. 7, the volute 30 includes a front shell 30a and a rear shell 30b that are butted with each other, and the two shells can be detachably connected by means of a snap, which facilitates the disassembly and assembly.

Preferably, the receiving slot 22 extends through the air inlet 26, i.e. the path portion of the receiving slot 22 overlaps with the side wall region of the main housing 14 where the air inlet 26 is located, so that the overall size of the main housing 14 can be saved, and the product can be made smaller. Furthermore, a plurality of openings 45 are formed in the area, corresponding to the air inlet 26, at the bottom of the accommodating groove 22, so that air can enter the openings 45 after the hanging rope is taken out of the accommodating groove, and the influence of the arrangement of the accommodating groove 22 on the air inlet of the fan wheel 32 is reduced.

In the illustrated embodiment, a battery 46 and a circuit board 48 are also provided within the main housing 14, with the battery 46 and the circuit board 48 being spaced apart from and juxtaposed to the volute 30 within the main housing 14. The upper end cover 15 of the main casing 14 is provided with a switch 50, the battery 46, the switch 50 and the fan assembly 16 are respectively electrically connected with the circuit board 48, and the switch 50 is used for controlling the start and stop of the fan assembly 16. In other embodiments, the switch 50 may also add a function such as wind speed adjustment on the basis of controlling the start and stop, or further set a function button to implement control.

In this embodiment, a sliding structure is disposed between the housing 12 and the main housing 14, so that the main housing 14 can be moved relative to the housing 12 by the sliding structure. Specifically, the slide structure includes a slide rail 52 and a slide guide groove 54, and the slide rail 52 is slidably fitted with the slide guide groove 54. The slide rail 52 is provided on one of the inner wall surface of the housing 12 and the outer wall surface of the main housing 14, and the slide guide groove 54 is provided on the other of the inner wall surface of the housing 12 and the outer wall surface of the main housing 14. In the illustrated embodiment, the slide rail 52 is provided on the outer wall surface of the main housing 14, and the slide rail 52 is provided in plurality and arranged at intervals in the circumferential direction of the main housing 14; correspondingly, the slide guide grooves 54 are provided on the inner wall surface of the housing 12, and the number and positions of the slide guide grooves 54 correspond to those of the slide rails 52.

Preferably, each sliding guide 54 is formed by two parallel ribs spaced apart from each other, and one end of each rib near the top surface of the housing 12 is connected to each other, so that the upper end of the sliding guide 54 is a closed structure, which can limit the upward sliding of the main housing 14 and prevent the main housing 14 from being separated from the housing 12 during the sliding process.

Preferably, a damping structure may be further provided between the sliding guide rail 52 and the sliding guide groove 54 to increase the frictional resistance of the telescopic sliding of the main housing 14 relative to the housing 12, prevent the main housing 14 from sliding relative to the housing 12 without external force, and enable the main housing 14 to slide telescopically relative to the housing 12 to any position and stay firmly at the position.

In the illustrated embodiment, two ends of the main housing 14 in the length direction of the side surface are respectively provided with a protrusion 56 near the upper end of the main housing 14, two ends of the hanging rope 18 are respectively connected to the two protrusions 56, the upper end of the housing 12 is provided with a limit groove 58 corresponding to the protrusion 56, and when the main housing 14 slides to the storage position, the protrusion 56 abuts against the limit groove 58.

Preferably, the protrusion 56 can be clipped into the clipping groove 58 by means of a snap or the like to clip the main housing 14 to the limiting groove, so as to limit the downward sliding of the main housing 14, and at the same time, to ensure the stable connection between the main housing 14 and the housing 12.

When the main housing 14 is in the storage position, the main housing 14 is accommodated in the accommodating cavity 20, and the housing 12 covers the air inlet 26 and also covers the accommodating groove 22, so that the appearance of the product is attractive; in the extended position, the main housing 14 extends at least partially out of the receiving cavity 20 and exposes the receiving slot 22, thereby facilitating the user to remove or store the lanyard 18.

Set up on main casing body 14's the relative both sides face and be close to the position of top surface through lug 56, all locate switch 50 and air outlet 24 on main casing body 14's top surface, so design makes when hanging rope 18 and use, can just hang and blow towards human face at human neck, and makes things convenient for operating switch 50.

In the embodiment shown in fig. 8, the structure of the portable fan 10 is the same as that of the previous embodiment, except that in this embodiment, the housing 12 is fixedly connected to the outside of the main housing 14, the housing 12 is provided with a plurality of through holes 60 on four surfaces (i.e. four surfaces on the front, back, left and right) surrounding the main housing 14, and the areas where the plurality of through holes 60 are arranged respectively cover most of the area of each surface of the housing 12, i.e. the area where the through holes 60 are located covers the other areas of the surface of the main housing 14 in addition to the area covering the air inlet 26 on the surface of the main housing 14, the area of the through holes 60 preferably covers the whole surface of the housing 12, the gap 28 between the housing 12 and the main housing 14 can be communicated with the outside through the through holes 60, so that the fan wheel 32 in the main housing 14 can be communicated with the outside through the gap 28 through the through holes 60 through the air inlet 26, and the areas where the through holes 60 are arranged respectively cover most of each surface of the housing 12, so that when the housing 12 is used, even if the hand contacts with part of the through holes 60, the through holes 60 can block part of the through holes 60, so that when the user holds the portable fan, the hand can not affect the portable fan, and the air entering when the user holds the portable fan, thereby facilitating the user can use the air. In this embodiment, the upper and lower end edges of the outer casing 12 may not be spaced from the main casing 14, that is, the upper and lower end edges of the outer casing 14 may be connected to the upper and lower end edges of the main casing 14, respectively, so as to effectively prevent impurities from entering between the outer casing 12 and the main casing 14 from the upper and lower sides of the gap 28 between the outer casing 12 and the main casing 14, and affecting the use of the fan.

To sum up, the utility model provides a portable fan sets up the clearance between the main casing body and shell, the clearance forms the inlet air channel of fan, the shell shelters from the air intake on the main casing body, the air intake passes through clearance and external intercommunication air inlet between the main casing body and the shell, make the user hand can not contact the air intake in order to influence the fan air inlet when taking the fan to use, and the shell shelters from the air intake, hide the air intake in the shell, can prevent effectively that user's hair or finger from the air intake stretch into by the fan wheel incised wound in the fan, make the product use safer and the appearance is whole pleasing to the eye.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. The utility model provides a portable fan, includes the main casing body and locates fan subassembly in the main casing body, correspond on the main casing body the fan subassembly is equipped with air intake and air outlet, a serial communication port, portable fan still includes the shell, the shell surround in outside the main casing body, in order to shelter from the air intake, the main casing body with have between the shell with the clearance of air intake and external intercommunication.

2. The portable fan as claimed in claim 1, further comprising a hanging rope connected to the main housing, wherein a receiving groove for receiving the hanging rope is formed on a side surface of the main housing.

3. The portable fan as claimed in claim 2, wherein the main housing is provided with a switch, the switch and the air outlet are located on a top surface of the main housing, two opposite side surfaces of the main housing and positions close to the top surface are respectively provided with a protrusion, and two ends of the hanging rope are respectively connected with the two protrusions.

4. The portable fan of claim 3, wherein a receiving cavity is defined in the housing, the main housing is slidable relative to the housing between a receiving position and an extended position, and in the receiving position, the main housing is received in the receiving cavity, and the housing covers the air inlet and the receiving groove; when the main shell is at the extending position, at least part of the main shell extends out of the containing cavity and exposes out of the containing groove.

5. The portable fan as claimed in claim 4, wherein a sliding structure is provided between the housing and the main casing, the sliding structure includes a sliding guide rail and a sliding guide groove, the sliding guide rail and the sliding guide groove are slidably engaged with each other, the sliding guide rail is provided on one of an inner wall surface of the housing and an outer wall surface of the main casing, and the sliding guide groove is provided on the other of the inner wall surface of the housing and the outer wall surface of the main casing.

6. The portable fan as claimed in claim 5, wherein the sliding guide groove is formed by two ribs arranged in parallel at a spacing, and one ends of the two ribs near the top surface of the housing are connected to each other.

7. The portable fan of claim 2, wherein the receiving groove is formed circumferentially around the main housing.

8. The portable fan of claim 5, wherein the receiving slot extends through the air inlet.

9. The portable fan according to any one of claims 1 to 8, wherein the housing is of a structure opened at both ends to expose the top and bottom surfaces of the main housing; or, the shell is of a top end opening structure so as to expose the top surface of the main shell.

10. The portable fan as claimed in claim 9, wherein the housing has a plurality of through holes on four surfaces surrounding the main housing, and the plurality of through holes are arranged in a region covering most of each surface of the housing; and/or the distance between the inner surface of the outer shell and the outer surface of the main shell is 0.5-3 mm.

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