CN218817118U

CN218817118U - Portable fan

Info

Publication number: CN218817118U
Application number: CN202223260504.6U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Ranvoo Technology Co Ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-04-07
Anticipated expiration: 2032-12-02

Abstract

The embodiment of the utility model relates to a portable fan for example includes a shell assembly and a first centrifugal impeller, the first centrifugal impeller is installed in the shell assembly, the shell assembly is provided with a first air outlet and a first baffle; in the length direction of the portable fan, the first baffle extends to form a shielding area; in the height direction of the portable fan, the first baffle is located between the first air outlet and the first centrifugal impeller, and the first centrifugal impeller is located in the shielding area. The embodiment of the utility model provides a through set up first baffle between first centrifugal impeller and first air outlet, the hair that gets into in the casing subassembly from first air outlet can not contact first centrifugal impeller because of the effect of sheltering from of first baffle, therefore can not be dragged by first centrifugal impeller winding in the high-speed rotatory in-process hair of first centrifugal impeller, can improve the security of product use and prolong centrifugal fan's life by this.

Description

Portable fan

Technical Field

The utility model relates to a fan equipment technical field especially relates to a portable fan.

Background

In recent years, people are pursuing more convenient life, in order to meet the requirement that outdoor activities or other life scenes need to enjoy fans, various portable fans such as a neck hanging fan, a handheld fan, a waist hanging fan, a head wearing fan and the like appear on the market, and the appearance of the portable fans realizes the effect of blowing air in an outdoor environment anytime and anywhere.

The conventional portable fan generally includes a housing assembly and a centrifugal fan accommodated inside the housing assembly, the housing assembly is provided with an air inlet, an air outlet and a volute communicating the air inlet and the air outlet, and the centrifugal fan is located inside the volute. In order to increase the wind power, it is generally designed that the air outlet of the volute directly faces the air outlet of the housing assembly, thereby shortening the length of the air duct. However, the air exit of this kind of spiral case is direct towards the design of casing subassembly air outlet for centrifugal fan's blade direct exposure is in casing subassembly's air outlet department, thereby make foreign matters such as hair enter into the spiral case and contact centrifugal fan's blade from casing subassembly's air outlet easily, in case centrifugal fan begins work, the hair that enters into in the spiral case can be dragged by high-speed rotatory centrifugal fan's blade winding, not only has the hank and send out the risk, threatens user safety, but also leads to centrifugal fan unable work easily, damage even.

SUMMERY OF THE UTILITY MODEL

Therefore, for prevent the hank hair, improve the security of product use and extension centrifugal fan's life, the embodiment of the utility model provides a portable fan.

Specifically, the embodiment of the present invention provides a portable fan, which includes a casing assembly and a first centrifugal impeller, wherein the first centrifugal impeller is installed in the casing assembly, and the casing assembly is provided with a first air outlet and a first baffle; in the length direction of the portable fan, the first baffle extends to form a shielding area; in the height direction of the portable fan, the first baffle is located between the first air outlet and the first centrifugal impeller, and the first centrifugal impeller is located in the shielding area.

In an embodiment of the present invention, the first baffle is an arc baffle, the first baffle has a first end and a second end opposite to each other, and the first end is closer to the first air outlet than the second end.

In an embodiment of the present invention, the housing assembly further includes a wind channel, the wind channel includes a first wind channel and a second wind channel, the first wind channel is located the first baffle is far away from one side of the first wind outlet, the second wind channel is located the first baffle is adjacent to one side of the first wind outlet, the first end of the first baffle extends to the opposite second end to form the shielding region, the second end and a communication port is formed between the side walls of the wind channel, the communication port communicates the first wind channel with the second wind channel.

In an embodiment of the present invention, the housing assembly further has a baffle, one end of the baffle is adjacent to the communication opening, and the other end of the baffle faces the first baffle, and the first end of the first baffle extends into the second air duct.

In an embodiment of the present invention, the housing assembly further has a flow guiding portion, the flow guiding portion extends toward the first air outlet, and the flow guiding portion passes through the first air duct and extends into the second air duct.

In an embodiment of the present invention, each of the plurality of blades circumferentially spaced from the first centrifugal impeller is located in the shielding region at the outermost edge.

In an embodiment of the present invention, the portable fan further includes a second centrifugal impeller, the second centrifugal impeller is installed inside the housing assembly, and the housing assembly is further provided with a second air outlet and a second baffle; in the length direction of the portable fan, the second baffle extends to form a second shielding area; in the height direction of the portable fan, the second baffle is located between the second air outlet and the second centrifugal impeller, and the second centrifugal impeller is located in the second shielding area.

In an embodiment of the present invention, a distance center line along the height direction is provided between the second baffle and the first baffle, and the second baffle and the first baffle are symmetrically disposed about the distance center line.

In an embodiment of the present invention, the portable fan further comprises a filter member, the housing assembly is further provided with an air inlet, and the filter member is disposed at the air inlet.

In an embodiment of the present invention, the housing assembly includes a front portion and two arms connected at opposite ends of the front portion, the front portion and the two arms enclose to form a wearing space, the two arms are away from two ends of the front portion can be close to each other or away from each other.

In an embodiment of the invention, the first air outlet is provided on the front portion, the first centrifugal impeller and the first baffle are located in the front portion.

The utility model discloses above-mentioned embodiment is through add first baffle between first centrifugal impeller and first air outlet, and the hair that gets into in the casing subassembly from first air outlet can not contact first centrifugal impeller because of the effect of sheltering from of first baffle, therefore can not be dragged by the winding of first centrifugal impeller at the high-speed rotatory in-process hair of first centrifugal impeller, can improve the security that the product used and prolong centrifugal fan's life by this.

Drawings

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for the embodiment will be briefly described below; it is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic perspective view of a portable fan according to an embodiment of the present invention.

Fig. 2 is another perspective view of the portable fan shown in fig. 1.

Fig. 3 is a partial schematic view of the portable fan shown in fig. 1.

Fig. 4 is a partially enlarged view of the structure shown in fig. 3.

Fig. 5 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 4.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 5, an embodiment of the present invention provides a portable fan 10, including: a housing assembly 11 and a centrifugal fan arranged inside the housing assembly 11.

The housing assembly 11 has an inlet 1112, a first outlet 1110a, a first baffle 1115a, and an air duct 1113 connecting the inlet 1112 and the first outlet 1110 a. The centrifugal fan includes, for example, a motor (not shown in fig. 3) and a first centrifugal impeller 13a mechanically coupled to the motor, and the first centrifugal impeller 13a is installed in the air duct 1113. The first centrifugal impeller 13a is typically a small wind wheel that supplies air in the axial direction and discharges air in the radial direction, and applies work by using centrifugal force to increase the pressure of the air.

As described above, the first end 11151 of the first baffle 1115a extends to the opposite second end 11152 in the longitudinal direction of the portable fan 10 to form a blocking area. In the height direction of the portable fan 10, the first baffle 1115a is located between the first air outlet 1110a and the first centrifugal impeller 13a, and the first centrifugal impeller 13a is located in the shielding region. Therefore, the hair entering the housing assembly 11 from the first air outlet 1110a will not contact the first centrifugal impeller 13a due to the shielding effect of the first baffle 1115a, so that the hair will not be wound and pulled by the first centrifugal impeller 13a during the high-speed rotation of the first centrifugal impeller 13a, thereby improving the safety of the product and prolonging the service life of the centrifugal fan. More specifically, air duct 1113 includes, for example, a first air duct 1113a and a second air duct 1113b, where the first air duct 1113a is located on a side of the first baffle 1115a away from the first air outlet 1110a, the second air duct 1113b is located on a side of the first baffle 1115a adjacent to the first air outlet 1110a, a communication port 11130 is formed between a second end 11152 of the first baffle 1115a and a side wall of the air duct 1113, and the communication port 11130 communicates the first air duct 1113a and the second air duct 1113b.

Further, as shown in fig. 3, the outermost edge of each of the plurality of blades of the first centrifugal impeller 13a disposed at intervals in the circumferential direction is located in the shielded region, thereby ensuring that the first centrifugal impeller 13a is located in the shielded region.

Further, as shown in fig. 4, the first baffle 1115a is an arc-shaped baffle, and the first end 11151 is closer to the first outlet 1110a than the second end 11152 in the height direction of the portable fan 10, so that the first baffle 1115a can not only prevent hairs entering from the first outlet 1110a from being entwined and pulled by the first centrifugal impeller 13a, but also guide the airflow to be blown out from the first outlet 1110a, and the size of the outlet area of the portable fan 10 can be increased. For example, the first baffle 1115a is substantially S-shaped.

In some embodiments, such as shown in fig. 3-5, the housing assembly 11 is further provided with a flow guide 1117. The flow guide portion 1117 extends obliquely toward the first air outlet 1110a, and the flow guide portion 1117 extends into the second air duct 1113b from the first air duct 1113a through the communication opening 11130. The slope design of the guiding portion 1117, which may be a slope structure or an arc structure, is beneficial to guide the airflow in the first air duct 1113a out and to the air outlet 1110.

In some embodiments, such as shown in fig. 3 and 4, the housing assembly 11 is further provided with a baffle 1119, and the baffle 1119 is located at the communication opening 11130 of the first air duct 1113a and extends into the second air duct 1113b in a curved manner toward the first end 11151 of the first baffle 1115 a. The baffle 1119 is disposed to make the airflow more uniformly blown out of the first outlet 1110 a. More specifically, taking fig. 3 as an example, the baffle 1119 has an arc structure, so that a portion of the airflow can be guided from the second end 11152 to the first end 11151 of the first baffle 1115a, so as to make the air exiting from the first outlet 1110a more uniform.

Referring to fig. 3 again, in some embodiments, the portable fan 10 further includes a second centrifugal impeller 13b, the second centrifugal impeller 13b is installed inside the housing assembly 11, and the housing assembly 11 is further provided with a second air outlet 1110b and a second baffle 1115b. In the length direction of the portable fan 10, the second blocking plate 1115b is arranged alongside the first blocking plate 1115a, and a first end 11153 of the second blocking plate 1115b extends to an opposite second end 11154 to form a second blocking area (not labeled in fig. 3). In the height direction of the portable fan 10, the second baffle 1115b is located between the second air outlet 1110b and the second centrifugal impeller 13b, and the second centrifugal impeller 13b is located in the second baffle area. Further, the second baffle 1115b and the first baffle 1115a have a distance center line OO 'therebetween in the height direction, and the second baffle 1115b and the first baffle 1115a are disposed symmetrically with respect to the distance center line OO'. It should be noted here that when the second flap 1115b and the first flap 1115a are disposed at an interval in the longitudinal direction of the portable fan 10, the first end 11151 of the first flap 1115a is adjacent to the first end 11153 of the second flap 1115b with a gap therebetween, and the distance center line OO' is the center line of the gap in the height direction. Of course, the first end 11151 of the first flap 1115a and the first end 11153 of the second flap 1115b may directly contact each other, that is, there is no gap, and the distance center line OO' is a connecting line between the first end 11151 of the first flap 1115a and the first end 11153 of the second flap 1115b in the height direction. In addition, the second baffle 1115b is, for example, an arc-shaped baffle, and the first end 11153 is closer to the second outlet 1110b than the second end 11154.

In some embodiments, referring to fig. 2, the portable fan 10 may also be provided with a strainer 1118, positioned at the intake 1112. The filter 1118 includes, for example, a support and a filter screen, optionally activated carbon filter cotton, disposed on the support, the filter 1118 being disposed not only to filter air but also to prevent hair from being drawn in through the intake 1112.

In addition, as shown in fig. 1 to 3, the portable fan 10 is, for example, a neck hanging fan, and the housing assembly 11 includes a front portion 111 and two

arms

113 and 115 connected to opposite ends of the front portion 111. The front part 111 and the two

arms

113, 115 enclose a wearing space 100. The ends of the two

arms

113, 115 remote from the front 111 can be moved towards or away from each other by manual manipulation. Further, the first centrifugal impeller 13a and the second centrifugal impeller 13b, the first baffle 1115a and the second baffle 1115b are disposed in the front portion 111, the inlet 1112, the first outlet 1110a and the second outlet 1110b are disposed on the front portion 111, the first outlet 1110a and the second outlet 1110b are disposed side by side on the top side of the front portion 111, for example, and the inlet 1112 is located on the inner side of the front portion 111 adjacent to the wearing space 100, for example. When the portable fan 10 is worn around the neck of the user, the front portion 111 is located in front of the neck of the user, so that the airflow from the first centrifugal impeller 13a and the second centrifugal impeller 13b can be blown toward the face of the user.

It should be noted that the portable fan 10 of the embodiment of the present invention is not limited to a neck hanging fan, and may also be other portable fans such as a handheld fan, a waist hanging fan, a head-mounted fan, etc., and the embodiment of the present invention is not limited thereto.

Any combination of the features of the above-described embodiments is possible, and for the purpose of simplifying the description, all possible combinations of the features of the above-described embodiments will not be described, however, unless a contradiction exists between the combinations of the features, the scope of the present description should be considered to be included in the claims.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A portable fan (10) comprising a housing assembly (11) and a first centrifugal impeller (13 a), said first centrifugal impeller (13 a) being mounted within said housing assembly (11), said housing assembly (11) being provided with a first air outlet (1110 a) and a first baffle (1115 a); the first baffle (1115 a) extends to form a sheltering area in the length direction of the portable fan (10); in the height direction of the portable fan (10), the first baffle (1115 a) is located between the first air outlet (1110 a) and the first centrifugal impeller (13 a), and the first centrifugal impeller (13 a) is located in the blocking area.

2. The portable fan (10) of claim 1, wherein the first baffle (1115 a) is a curved baffle, the first baffle (1115 a) having first (11151) and second (11152) opposing ends, the first end (11151) being closer to the first outlet vent (1110 a) than the second end (11152).

3. The portable fan (10) according to claim 1, wherein the housing assembly (11) further comprises a wind tunnel (1113), the wind tunnel (1113) comprises a first wind tunnel (1113 a) and a second wind tunnel (1113 b), the first wind tunnel (1113 a) is located on a side of the first baffle (1115 a) far away from the first wind outlet (1110 a), the second wind tunnel (1113 b) is located on a side of the first baffle (1115 a) near the first wind outlet (1110 a), a first end (11151) of the first baffle (1115 a) extends to an opposite second end (11152) to form the sheltering area, a communication port (11130) is formed between the second end (11152) and a side wall of the wind tunnel (1113), and the communication port (11130) is communicated with the first wind tunnel (1113 a) and the second wind tunnel (1113 b).

4. The portable fan (10) according to claim 3, wherein the housing assembly (11) is further provided with a baffle (1119), one end of the baffle (1119) is disposed adjacent to the communication port (11130), and the other end thereof extends into the second duct (1113 b) while bending toward the first end (11151) of the first baffle (1115 a); and/or the shell assembly (11) is further provided with a flow guide part (1117), the flow guide part (1117) extends towards the first air outlet (1110 a) in an inclined mode, and the flow guide part (1117) penetrates through the communication opening (11130) from the first air duct (1113 a) to extend into the second air duct (1113 b).

5. The portable fan (10) of claim 1, wherein each outermost edge of the plurality of circumferentially spaced blades of the first centrifugal impeller (13 a) is located within the shielded area.

6. The portable fan (10) of claim 1, wherein the portable fan (10) further comprises a second centrifugal impeller (13 b), the second centrifugal impeller (13 b) being mounted inside the housing assembly (11), the housing assembly (11) further being provided with a second air outlet (1110 b) and a second baffle (1115 b); the second shield plate (1115 b) extends to form a second shield region in the length direction of the portable fan (10); in the height direction of the portable fan (10), the second shutter (1115 b) is located between the second air outlet (1110 b) and the second centrifugal impeller (13 b), and the second centrifugal impeller (13 b) is located within the second shutter region.

7. The portable fan (10) of claim 6 wherein the second flap (1115 b) and the first flap (1115 a) have a distance centerline (OO ') therebetween in the height direction, the second flap (1115 b) and the first flap (1115 a) being symmetrically disposed about the distance centerline (OO').

8. The portable fan (10) of claim 1 wherein the portable fan (10) further comprises a filter (1118), the housing assembly (11) further having an intake (1112) and the filter (1118) being positioned at the intake (1112).

9. The portable fan (10) of any one of claims 1-8, wherein the housing assembly (11) comprises a front portion (111) and two arms (113, 115) connected to opposite ends of the front portion (111), the front portion (111) and the two arms (113, 115) enclose a wearing space (100), and ends of the two arms (113, 115) away from the front portion (111) can be close to or away from each other.

10. The portable fan (10) of claim 9, wherein the first air outlet vent (1110 a) is disposed on the front portion (111), and the first centrifugal impeller (13 a) and the first baffle (1115 a) are located within the front portion (111).