A hand fan with diffuser

Abstract

The utility model provides a hand -held fan with diffuser, include: a hand component, along first direction extension, hand component built -in battery, and a diffuser piece, diffuser piece's first end with hand component's first end rotatable connection, rotation axis is perpendicular to first direction, diffuser piece's inside is equipped with a air channel along diffuser piece's length direction extension, the casing on the first side of air channel away from rotation axis is equipped with a air outlet slit, the second side with first side away from in air channel is equipped with a fan, and the air flow produced by fan flows to first side through air channel and emits outward from air outlet slit. The utility model can enhance the wind force, expand the wind area simultaneously, and reduce the volume under the accomodation state, the length of deployment in the use state, improve the use experience of user.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment, and more specifically, to a handheld fan with a diffuser. Background Technology

[0002] Currently, there are two main types of handheld fans on the market:

[0003] Figure 1 This is a schematic diagram of the first handheld fan in the prior art. Figure 1 As shown, the main structure of the first type of handheld fan 10 is that the handle has a built-in battery and a disc-shaped ventilation cover is set on the handle. Inside the ventilation cover, fan blades that rotate along the horizontal axis are set to blow out a relatively dispersed air force. However, the disadvantage is that the air force is small and the ventilation cover itself is large and difficult to store.

[0004] Figure 2 This is a schematic diagram of a second type of handheld fan based on existing technology. Figure 2 As shown, the main structure of the second type of handheld fan 20 is a battery built into the handle. A motor that rotates along the horizontal axis is set on the handle, forming a T-shaped structure similar to a hammer, which blows out a relatively concentrated air force. However, the disadvantages are that the size is irregular, storage is still troublesome, and the air force blown out is too concentrated within the handheld use distance, resulting in a poor user experience.

[0005] Moreover, both types of handheld fans have the drawback of having a shorter overall length. While this makes them easier to store, users need to raise their arms to blow air on their face, which can cause arm fatigue after prolonged use. However, increasing the overall length makes storage more difficult.

[0006] Therefore, this invention provides a handheld fan with a diffuser. Utility Model Content

[0007] In view of the problems in the prior art, the purpose of this utility model is to provide a handheld fan with a diffuser, which overcomes the difficulties of the prior art, can enhance the wind power, expand the air outlet area, and reduce the volume in the storage state and the unfolded length in the use state, thereby improving the user experience.

[0008] An embodiment of this utility model provides a handheld fan with a diffuser, comprising:

[0009] A handle extending along a first direction, the handle having a built-in battery; and

[0010] A diffuser is provided, the first end of which is rotatably connected to the first end of the handle, and the rotation axis is perpendicular to the first direction; the diffuser has an air passage extending along the length of the diffuser inside, and an air outlet slit is provided on the housing on the first side of the air passage away from the rotation axis. A fan is provided on the second side of the air passage away from the first side, and the air generated by the fan flows through the air passage to the first side and is emitted outward from the air outlet slit.

[0011] Preferably, the housing of the diffuser is provided with at least a first air inlet screen, the projection of the first air inlet screen based on the central axis of the diffuser at least partially overlaps with the projection of the air inlet of the fan based on the central axis of the diffuser.

[0012] Preferably, the extension direction of the air outlet slit is parallel to the length direction of the diffuser.

[0013] Preferably, the length of the diffuser is a, and the length range of the air outlet slit is greater than the length range of the diffuser by [0.25a, ​​0.5a].

[0014] Preferably, it further includes a rotating shaft, one end of which is connected to the diffuser, and the other end of which is rotatably connected to the diffuser.

[0015] Preferably, it further includes a hollow rotating shaft, which is integrally formed with the diffuser. The first air inlet screen is disposed circumferentially at the first end of the hollow rotating shaft. The first end of the hollow rotating shaft is connected to the first end of the diffuser. The second end of the diffuser is rotatably sleeved on the outer periphery of the hollow rotating shaft. The second end of the diffuser is provided with a second air inlet screen, which is connected to the air inlet of the fan.

[0016] Preferably, it further includes a hollow rotating shaft, which is integrally formed with the diffuser. The first air inlet screen is disposed circumferentially at the first end of the diffuser. The first end of the hollow rotating shaft is connected to the first end of the diffuser. The first end of the handle is rotatably sleeved on the outer periphery of the hollow rotating shaft. The second end of the hollow rotating shaft is exposed outside the diffuser and is provided with a second air inlet screen. The second air inlet screen is connected to the air inlet of the fan through the internal air passage of the hollow rotating shaft.

[0017] Preferably, the first end face of the diffuser is provided with a third air inlet mesh cover.

[0018] Preferably, the handle is a first column and the diffuser is a second column, wherein the length of the first column is the same as the length of the second column.

[0019] Preferably, when the diffuser rotates along the rotation axis to overlap with the handle, it forms a stowed state;

[0020] When the diffuser rotates along the rotation axis to the point where it is opposite to the handle, it is in use.

[0021] Preferably, the fan is electrically connected to the battery.

[0022] This invention provides a handheld fan with a diffuser that enhances airflow, expands the air outlet area, reduces the volume when stored, and increases the unfolded length when in use, thus improving the user experience. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the first handheld fan in the prior art.

[0025] Figure 2 This is a schematic diagram of a second type of handheld fan in the prior art.

[0026] Figure 3 This is a perspective view of the first type of handheld fan with a diffuser of this utility model in its stored state.

[0027] Figure 4 This is a perspective view of the first type of handheld fan with a diffuser according to the present invention in use.

[0028] Figure 5 This is a cross-sectional view of the second type of handheld fan with a diffuser according to the present invention.

[0029] Figure 6 This is a cross-sectional view of the second type of handheld fan with a diffuser according to the present invention in use.

[0030] Figure 7 This is a cross-sectional view of the third type of handheld fan with a diffuser according to this utility model.

[0031] Figure 8 This is a cross-sectional view of the third type of handheld fan with a diffuser according to the present invention in its usage state.

[0032] Figure Labels

[0033] 1. Diffuser

[0034] 2. Handle component

[0035] 3. Air outlet slit

[0036] 4. Air inlet mesh cover

[0037] 5. Fans

[0038] 6. Rotating components

[0039] 60 Hollow Rotary Shaft

[0040] 61 First End

[0041] 62 Second End

[0042] 7. Airway

[0043] 8 Second air inlet mesh cover

[0044] 9. Third air intake grille

[0045] 10 The first handheld fan

[0046] 20. The second type of handheld fan Detailed Implementation

[0047] The following specific examples illustrate the implementation methods of this application. Those skilled in the art can easily understand the other advantages and effects of this application from the content disclosed herein. This application can also be implemented or applied through other different specific embodiments, and various details in this application can be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0048] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.

[0049] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this application, as well as features of different embodiments or examples.

[0050] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0051] To clearly illustrate this application, devices unrelated to the description are omitted, and the same or similar constituent elements throughout the specification are given the same reference numerals.

[0052] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0053] When we say that a device is "above" another device, this can mean that it is directly above the other device, or it can mean that other devices are present in between. Conversely, when we say that a device is "directly" "above" another device, there are no other devices present in between.

[0054] Although the terms first, second, etc., are used in some instances herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0055] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this application. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in the specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0056] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the content of this present application, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0057] Figure 3 This is a perspective view of the first type of handheld fan with a diffuser of this utility model in its stored state. Figure 4 This is a perspective view of the first type of handheld fan with a diffuser according to this utility model in use. Figure 3 and 4 As shown, the first type of handheld fan with a diffuser according to this utility model includes: a handle 2 and a diffuser 1. The handle 2 extends along a first direction and has a built-in battery. The first end of the diffuser 1 is rotatably connected to the first end of the handle 2, with the rotation axis perpendicular to the first direction. An air duct 7 extending along the length of the diffuser 1 is provided inside the diffuser 1. An air outlet slit 3 is provided on the housing of the air duct 7 on the first side opposite to the rotation axis. A fan 5 is provided on the second side of the air duct 7 opposite to the first side. The fan 5 is electrically connected to the battery. In this embodiment, the fan 5 is a vortex fan. The air generated by the fan 5 flows through the air duct 7 towards the first side and is emitted outward from the air outlet slit 3.

[0058] In a preferred embodiment, the housing of the diffuser 1 is provided with at least a first air inlet screen 4, the projection of the first air inlet screen 4 based on the central axis of the diffuser 1 at least partially overlaps with the projection of the air inlet of the fan 5 based on the central axis of the diffuser 1.

[0059] In a preferred embodiment, the air outlet slit 3 extends in a direction parallel to the length direction of the diffuser 1.

[0060] In a preferred embodiment, the length of the diffuser 1 is a, and the length range of the air outlet slit 3 is greater than the length range of the diffuser 1 by [0.25a, ​​0.5a].

[0061] In a preferred embodiment, the handle 2 is a first column and the diffuser 1 is a second column, with the length of the first column being the same as the length of the second column.

[0062] In a preferred embodiment, the first end of the diffuser 1 and the first end of the handle 2 are rotatably connected by a rotating member.

[0063] When the first type of diffuser of this utility model needs to be stored, the diffuser 1 is rotated along the rotation axis until it overlaps with the handle 2, forming a stored state. At this time, the diffuser 1 and the handle 2 are completely aligned in length, with a regular and minimal volume, which is conducive to storage. When the first type of diffuser of this utility model needs to be used, when the diffuser 1 is rotated along the rotation axis until it is opposite to the handle 2, the diffuser 1 and the handle 2 are in their longest state, providing the best user experience.

[0064] In order to reduce the vibration of the fan 5 in the diffuser 1 and transfer the wobbling caused by the rotating part between the diffuser 1 and the handle 2, and to enhance stability, the second type of handheld fan with a diffuser of this utility model uses a solid and robust rotating shaft 6 based on the first type of handheld fan with a diffuser. Figure 5 This is a cross-sectional view of the second type of handheld fan with a diffuser according to the present invention. Figure 6 This is a cross-sectional view of the second type of handheld fan with a diffuser according to the present invention, showing its usage. The second type of handheld fan with a diffuser also includes a solid, robust rotating shaft 6. One end of the shaft 6 is connected to the diffuser 1, and the other end of the diffuser 1 is rotatably connected to it. The robust rotating shaft 6 helps to provide greater rotational damping, avoiding the shaking sensation caused by the vibration of the fan 5. The usage of the second type of handheld fan with a diffuser is the same as that of the first type of handheld fan with a diffuser, and will not be repeated here.

[0065] Figure 7 This is a cross-sectional view of the third type of handheld fan with a diffuser according to this utility model. Figure 8 This is a cross-sectional view of the third type of handheld fan with a diffuser according to this utility model, showing its usage. Figure 7 , 8As shown, the third type of handheld fan with a diffuser in this invention uses a high-speed vortex fan in the blower 5, thus requiring a larger air inlet area. The third type of handheld fan with a diffuser in this invention also includes a hollow rotating shaft 60. The hollow rotating shaft 60 is integrally formed with the diffuser 1, and a first air inlet screen 4 is disposed circumferentially at the first end of the diffuser 1 (in this embodiment, the first air inlet screen 4 is a C-shaped sidewall surrounding the first end of the diffuser 1, with the notch connecting to the integrally formed hollow rotating shaft 60). The first end 61 of the hollow rotating shaft 60 is connected to the first end of the diffuser 1, the first end of the handle 2 is rotatably fitted onto the outer periphery of the hollow rotating shaft 60, and the second end 62 of the hollow rotating shaft 60 is exposed outside the diffuser 1 and is provided with a second air inlet screen 8. The second air inlet screen 8 is connected to the air inlet of the fan 5 through the internal air passage of the hollow rotating shaft 60. A third air inlet screen 9 is provided on the end face of the first end of the diffuser 1.

[0066] When the third type of handheld fan with a diffuser is operating, the first portion of air, A, enters the diffuser 1 through the first air inlet screen 4 to reach the air inlet of the fan 5. The second portion of air, B, enters the internal air passage of the hollow rotating shaft 60 through the second air inlet screen 8. This internal air passage connects to the interior of the second end 62 of the diffuser 1, thus reaching the air inlet of the fan 5. The third portion of air, C, enters through the third air inlet screen 9 at the first end of the diffuser 1, thus reaching the air inlet of the fan 5. Therefore, when the motor of the third type with a diffuser rotates, it can obtain air from three different air inlet screens, thereby greatly enhancing the fan's suction capacity, especially when used in conjunction with a high-speed vortex fan to increase airflow.

[0067] In summary, the purpose of this utility model is to provide a handheld fan with a diffuser, which can enhance wind power, expand the air outlet area, reduce the volume in the storage state, and increase the unfolded length in the use state, thereby improving the user experience.

[0068] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A handheld fan with a diffuser, characterized in that, include: A handle (2) extends along a first direction, and the handle (2) has a built-in battery; as well as A diffuser (1) is provided inside the diffuser (1) and the first end of the handle (2) is rotatably connected. The rotation axis is perpendicular to the first direction. An air passage (7) extending along the length direction of the diffuser (1) is provided inside the diffuser (1). An air outlet slit (3) is provided on the housing of the air passage (7) on the first side away from the rotation axis. A fan (5) is provided on the second side of the air passage (7) away from the first side. The air generated by the fan (5) flows through the air passage (7) to the first side and is emitted outward from the air outlet slit (3).

2. The handheld fan with a diffuser as described in claim 1, characterized in that, The housing of the diffuser (1) is provided with at least a first air inlet screen (4), and the projection of the first air inlet screen (4) based on the central axis of the diffuser (1) and the projection of the air inlet of the fan (5) based on the central axis of the diffuser (1) are at least partially overlapping.

3. The handheld fan with a diffuser as described in claim 1, characterized in that, The air outlet slit (3) extends in a direction parallel to the length direction of the diffuser (1).

4. The handheld fan with a diffuser as described in claim 2, characterized in that, The length of the diffuser (1) is a, and the length range of the air outlet slit (3) is greater than the length range of the diffuser (1) by [0.25a, ​​0.5a].

5. The handheld fan with a diffuser as described in claim 1, characterized in that, It also includes a pivot (6), one end of which is connected to the diffuser (1), and the other end of which is rotatably connected to the diffuser (1).

6. The handheld fan with a diffuser as described in claim 2, characterized in that, It also includes a hollow rotating shaft (60), which is integrally formed with the diffuser (1). The first air inlet screen (4) is disposed on the circumference of the first end of the diffuser (1). The first end (61) of the hollow rotating shaft (60) is connected to the first end of the diffuser (1). The first end of the handle (2) is rotatably sleeved on the outer periphery of the hollow rotating shaft (60). The second end (62) of the hollow rotating shaft (60) is exposed outside the diffuser (1) and is provided with a second air inlet screen. The second air inlet screen is connected to the air inlet of the fan (5) through the internal air passage of the hollow rotating shaft (60).

7. The handheld fan with a diffuser as described in claim 6, characterized in that, The first end face of the diffuser (1) is provided with a third air inlet mesh cover.

8. The handheld fan with a diffuser as described in claim 1, characterized in that, The handle (2) is a first column, and the diffuser (1) is a second column, with the length of the first column being the same as the length of the second column.

9. The handheld fan with a diffuser as described in claim 8, characterized in that, When the diffuser (1) rotates along the rotation axis to overlap with the handle (2), it forms a storage state; When the diffuser (1) rotates along the rotation axis to the point where it is opposite to the handle (2), it is in use.

10. The handheld fan with a diffuser as described in claim 1, characterized in that, The fan (5) is electrically connected to the battery.

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