CN216477952U

CN216477952U - Portable fan

Info

Publication number: CN216477952U
Application number: CN202123110003.5U
Authority: CN
Inventors: 许加华; 王永炯
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Ranvoo Technology Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-05-10
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a portable fan, including shell and button subassembly, the button subassembly includes button portion, elastic support piece, connecting rod and switch element, and button portion installs on the shell, and elastic support piece fixed connection is in the shell and elastic support button portion, switch element's trigger direction and the displacement direction dislocation set of button portion, and the connecting rod linkage is connected between button portion and switch element, and the connecting rod is responded to the displacement of button portion and is triggered switch element. The utility model provides a portable fan has not only guaranteed portable fan's quality, has still solved the problem that user's button is felt and is experienced the difference.

Description

Portable fan

Technical Field

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

Background

At present, key assemblies of portable fans in the market are designed in such a way that a button part and a mechanical key are arranged in an up-and-down opposite mode, and then the button part and the mechanical key are in direct contact to control a switch of the fan. And under the compact condition in space, adopt button portion direct contact mechanical button can make mechanical button's position generally not humanized, cause space utilization extremely low, be unfavorable for the miniaturization of portable fan, the problem that does not reset after pressing appears easily in addition in current button subassembly after using a period.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a portable fan has not only guaranteed portable fan's quality, has still solved the problem that user's button is felt and is experienced the difference.

A portable fan comprises a shell and a key assembly, wherein the key assembly comprises a button part, an elastic supporting part, a connecting rod and a switch element, the button part is installed on the shell, the elastic supporting part is fixedly connected in the shell and elastically supports the button part, the triggering direction of the switch element and the displacement direction of the button part are arranged in a staggered mode, the connecting rod is connected between the button part and the switch element in a linkage mode, and the connecting rod responds to the displacement of the button part and triggers the switch element.

In an embodiment of the present invention, the housing is provided with a mounting hole penetrating through the housing, the button portion passes through the mounting hole and the elastic support member is fixedly connected, and the length of the elastic support member is greater than the diameter of the mounting hole.

The utility model discloses an in the embodiment, above-mentioned elastic support piece includes first connecting portion, second connecting portion and spacing portion, first connecting portion with second connecting portion respectively fixed connection in the both sides of spacing portion, first connecting portion with the second connecting portion pass through shaft hole cooperation fixed connection in the inside wall of shell, button portion with spacing portion fixed connection, button portion includes the connecting axle, the connecting axle passes spacing portion and with the connecting rod linkage is connected.

The utility model discloses an in the embodiment, the one end and the spacing fixed connection of portion of above-mentioned first connecting portion, the other end of first connecting portion extends round the crooked extension of circumference of spacing portion, the one end and the spacing fixed connection of portion of second connecting portion, the other end of second connecting portion is towards being close to the crooked extension of direction of first connecting portion, elastic support piece still includes the strengthening rib, first connecting portion pass through with the second connecting portion strengthening rib fixed connection.

In an embodiment of the present invention, a mounting seat is further fixed in the housing, the connecting rod includes a first transmission portion, a second transmission portion and a third transmission portion, the first transmission portion is movably connected in the mounting seat, the second transmission portion is linked and connected between the button portion and the first transmission portion, and the third transmission portion is linked and connected between the first transmission portion and the switch element.

The utility model discloses an in the embodiment, the both sides of above-mentioned first transmission portion are fixed with first axis of rotation and second axis of rotation respectively, be equipped with on the mount pad with first axis of rotation with second axis of rotation complex primary shaft hole and secondary shaft hole, first axis of rotation rotate connect in the primary shaft is downthehole, the second axis of rotation rotate connect in the secondary shaft is downthehole.

In an embodiment of the present invention, an included angle is formed between the second transmission portion and the third transmission portion, and the included angle is greater than 0 ° and less than 180 °.

The utility model discloses an in the embodiment, still be equipped with fan module, wind-guiding shell and circuit board in the above-mentioned shell, the fan module install in the wind-guiding shell, the wind-guiding shell with the inner wall fixed connection of shell, the circuit board is fixed in one side of wind-guiding shell, switching element electric connection in the circuit board orientation one side of wind-guiding shell, the button portion along the radial direction of fan module is located the opposite side of wind-guiding shell.

In an embodiment of the present invention, the second transmission portion extends from a side of the air guide shell close to the button portion to a side of the air guide shell close to the circuit board, the mounting seat is fixedly connected to a side of the air guide shell close to the circuit board, and the first transmission portion and the third transmission portion are both located at a side of the air guide shell close to the circuit board.

In an embodiment of the present invention, the switch element includes a base and an induction portion, the base is fixedly connected to the circuit board, and the induction portion is installed on the base and protrudes toward the air guide shell.

In an embodiment of the present invention, the housing is provided with an air outlet, and the button portion is located on the same side of the housing as the air outlet.

The utility model discloses a portable fan passes through elastic support piece fixed connection and in the shell and elastic support plays button portion, can avoid taking place excessive displacement after button portion receives the pressing force, and then causes button portion to remove completely to not reseing behind the shell is inside, finally leads to whole key assembly to take place the problem of warping, so guaranteed portable fan's quality. Meanwhile, even if the triggering direction of the switch element and the displacement direction of the button part are arranged in a staggered mode and the switch element cannot elastically support the button part, the elastic support part can enable the button part to accurately and automatically reset through elastic expansion and contraction of the elastic support part. The problem that the button part is difficult to automatically reset due to frequent pressing force is solved, and the problem that the touch feeling of the user button is poor is also solved. Secondly, a connecting rod is arranged between the button part and the switch element, and the connecting rod responds to the displacement of the button part and triggers the switch element, so that the signal transmission between the button part and the switch element can be ensured, and the switch element can feed back the signal transmitted from the button part.

Drawings

Fig. 1 is a schematic view of a partial enlarged structure of a portable fan according to the present invention;

FIG. 2 is a schematic cross-sectional view of the portable fan of the present invention;

fig. 3 is a schematic view illustrating the assembly of the button part and the elastic supporting member according to the present invention;

FIG. 4 is a schematic view of the button and the elastic support shown in FIG. 3 from another perspective;

fig. 5 is a schematic perspective view of the connecting rod of the present invention.

Detailed Description

Referring to fig. 1 to 5, the portable fan includes a housing 10 and a key assembly, the key assembly includes a button 21, an elastic support 22, a connecting rod 23 and a switch element 24, the button 21 is mounted on the housing 10, the elastic support 22 is fixedly connected in the housing 10 and elastically supports the button 21, a triggering direction of the switch element 24 and a displacement direction of the button 21 are arranged in a staggered manner, the connecting rod 23 is linked between the button 21 and the switch element 24, and the connecting rod 23 triggers the switch element 24 in response to the displacement of the button 21. In the present embodiment, the triggering direction of the switching element 24 and the displacement direction of the button portion 21 are perpendicular to each other. The elastic support 22 is made of plastic with good elasticity, such as thermoplastic elastomer, polyethylene plastic body, etc.

The utility model discloses a portable fan passes through elastic support piece 22 fixed connection and in shell 10 and elastic support plays button portion 21, can avoid taking place excessive displacement after button portion 21 receives the pressing force, and then causes button portion 21 to remove completely to shell 10 inside back and does not reset, finally leads to whole key assembly to take place the problem of warping, so guaranteed portable fan's quality. Meanwhile, even if the triggering direction of the switch element 24 is displaced from the displacement direction of the button 21 and the switch element 24 cannot elastically support the button 21, the elastic support 22 can accurately and automatically reset the button 21 by its elastic expansion and contraction. The problem that the button part 21 is difficult to automatically reset due to frequent pressing force is solved, and the problem that the touch feeling of the user keys is poor is also solved. Next, by providing the connecting rod 23 between the button part 21 and the switch element 24, and triggering the switch element 24 through the connecting rod 23 in response to the displacement of the button part 21, signal transmission between the button part 21 and the switch element 24 can be ensured, so that the switch element 24 can feed back even a signal transmitted from the button part 21.

Further, the housing 10 is provided with a mounting hole penetrating through the housing 10, the button portion 21 passes through the mounting hole to be fixedly connected with the elastic support 22, and the length of the elastic support 22 is greater than the diameter of the mounting hole. In this embodiment, the shape of the mounting hole is the same as the shape of the button portion 21, and the volume of the button portion 21 is equal to or slightly less than the volume of the mounting hole, so that when the button portion 21 moves up and down along the axis of the mounting hole, it can be ensured that the button portion 21 does not shake in the mounting hole. Secondly, since the length of the elastic supporting member 22 is greater than the diameter of the mounting hole, when the button 21 passes through the mounting hole and is fixedly connected with the elastic supporting member 22 inside the housing 10, the elastic supporting member 22 can limit the distance that the button 21 is displaced to the outside of the housing 10, and ensure that the button 21 is not completely separated from the housing 10.

Further, the elastic support 22 includes a first connection portion 221, a second connection portion 222 and a limit portion 223, the first connection portion 221 and the second connection portion 222 are respectively and fixedly connected to two sides of the limit portion 223, the first connection portion 221 and the second connection portion 222 are fixedly connected to the inner side wall of the housing 10 through shaft hole matching, the button portion 21 is fixedly connected to the limit portion 223, the button portion 21 includes a connection shaft 211, and the connection shaft 211 penetrates through the limit portion 223 and is linked with the connection shaft 23. In this embodiment, the first connecting portion 221 has a first fixing hole 103, the second connecting portion 222 has a second fixing hole 104, the inner side wall of the housing 10 has a first fixing shaft and a second fixing shaft, the first fixing shaft and the first fixing hole 103 can be in interference connection, the second fixing shaft and the second fixing hole 104 can also be in interference connection, and the elastic supporting member 22 can be conveniently replaced or maintained; or the first fixing shaft and the first fixing hole 103 can be directly and fixedly connected through glue, and the second fixing shaft and the second fixing hole 104 can also be directly and fixedly connected through glue, so that the firmness between the elastic supporting piece 22 and the shell 10 can be ensured.

Further, one end of the first connecting portion 221 is fixedly connected to the limiting portion 223, and the other end of the first connecting portion 221 extends in a curved manner around the circumference of the limiting portion 223, wherein the first fixing hole 103 is formed at an end of the first connecting portion 221 away from the limiting portion 223. One end of the second connecting portion 222 is fixedly connected to the limiting portion 223, and the other end of the second connecting portion 222 extends in a bending manner toward the first connecting portion 221, wherein the second fixing hole 104 is disposed at an end portion of the second connecting portion 222 close to the first connecting portion 221. The elastic supporting member 22 further includes a rib 224, and the first connecting portion 221 and the second connecting portion 222 are fixedly connected to form an integral structure by the rib 224. In the present embodiment, the first connection portion 221, the second connection portion 222 and the stiffener 224 are fixed and connected into an integral structure, so as to ensure that the first connection portion 221 and the second connection portion 222 are stressed uniformly, and prevent one of the first connection portion 221 and the second connection portion 222 from being stressed too much to cause the elastic support 22 to deform excessively, so that the button portion 21 cannot be supported.

Furthermore, the connecting lines between the centers of the first fixing hole 103, the second fixing hole 104 and the limiting portion 223 together form a triangular region, so the centers of the first fixing hole 103, the second fixing hole 104 and the limiting portion 223 are the three vertexes of the triangle respectively. At this time, after the pressing force from the button portion 21 acts on the limiting portion 223, the pressing force is dispersedly transmitted to the end portion of the first connecting portion 221 close to the first fixing hole 103 and the end portion of the second connecting portion 222 close to the second fixing hole 104, and then the resilience of the first connecting portion 221 and the second connecting portion 222 is utilized to perform a resilience action on the limiting portion 223, and in addition, the resilience of the limiting portion 223 itself is utilized, so that the button portion 21 is finally subjected to the elastic resilience of the limiting portion 223 to be accurately reset. In this embodiment, preferably, connecting lines between the centers of the first fixing hole 103, the second fixing hole 104 and the limiting portion 223 together form an equilateral triangle area, an end portion of the first connecting portion 221 close to the first fixing hole 103 is fixedly connected to the reinforcing rib 224, an end portion of the second connecting portion 222 close to the second fixing hole 104 is also fixedly connected to the reinforcing rib 224, and the first connecting portion 221 and the second connecting portion 222 are also fixedly connected to two sides of the limiting portion 223, respectively. Therefore, a stable force-bearing plane can be formed among the first connecting portion 221, the second connecting portion 222, the rib 224, and the stopper portion 223.

Further, the button portion 21 is cylindrical, and the stopper portion 223 is annular and disposed around the circumference of the button portion 21, so that the stopper portion 223 can uniformly support each portion of the button portion 21. The diameter of the limiting part 223 is larger than that of the mounting hole, so that after the button part 21 is fixedly connected with the limiting part 223, the distance of displacement of the button part 21 towards the outside of the shell 10 can be limited, and the button part 21 is ensured not to be completely separated from the shell 10.

Furthermore, the button portion 21 is disposed on the same side as the air outlet 101 formed in the housing 10, which not only facilitates the use of the user, but also improves the appearance of the portable fan.

Further, the connecting rod 23 includes a first transmission portion 231, a second transmission portion 232 and a third transmission portion 233, the second transmission portion 232 is linked between the button portion 21 and the first transmission portion 231, and the third transmission portion 233 is linked between the first transmission portion 231 and the switch element 24. In this embodiment, the first transmission part 231, the second transmission part 232 and the third transmission part 233 may be an integral structure. After the second transmission part 232 is linked and connected between the button part 21 and the first transmission part 231 and the third transmission part 233 is linked and connected between the first transmission part 231 and the switch element 24, the vertical downward force applied to the connecting rod 23 by the button part 21 can be changed into a driving force in a horizontal direction, for example, by changing the extending direction of the first transmission part 231, the second transmission part 232 and the third transmission part 233. Therefore, the position of the switch element 24 is not limited to the position facing the button portion 21, and the specific installation position of the switch element 24 can be selected according to the actual space inside the casing 10, and finally the space utilization rate of the portable fan can be improved.

Further, a fan module 12, an air guide shell 13, a circuit board 14 and a mounting seat 11 for mounting a connecting rod 23 are fixed in the housing 10. Specifically, the fan module 12 is installed in the air guiding casing 13, the air guiding casing 13 is fixedly connected with the inner wall of the housing 10, the circuit board 14 is fixed at one side of the air guiding casing 13, the switch element 24 is electrically connected to one side of the circuit board 14 facing the air guiding casing 13, and the mounting base 11 is fixedly connected to one side of the air guiding casing 13 close to the circuit board 14. In the embodiment, the fan module 12 is a centrifugal fan module 12, so the air outlet 101 of the portable fan is disposed along the radial direction of the centrifugal fan module 12.

Further, the first transmission part 231 is movably connected in the mounting seat 11. The first transmission part 231 is movably connected in the mounting base 11 to ensure that the connecting rod 23 does not deviate from a specific position in the linkage process along with the button part 21, i.e. the reliability of the key assembly is ensured, and the linkage of the connecting rod 23 is not interfered. In this embodiment, a first rotation shaft 2311 and a second rotation shaft 2312 are respectively fixed on two sides of the first transmission portion 231, a first shaft hole 102 and a second shaft hole matched with the first rotation shaft 2311 and the second rotation shaft 2312 are formed in the mounting seat 11, the first rotation shaft 2311 is rotatably connected in the first shaft hole 102, and the second rotation shaft 2312 is rotatably connected in the second shaft hole.

Further, an included angle is formed between the second transmission portion 232 and the third transmission portion 233, and the included angle is greater than 0 ° and smaller than 180 °. In this embodiment, the included angle is greater than 90 ° and less than 180 °.

Further, the second transmission portion 232 extends obliquely from a side of the air guiding casing 13 close to the button portion 21 to a side of the air guiding casing 13 close to the circuit board 14, and the first transmission portion 231 and the third transmission portion 233 are both located on a side of the air guiding casing 13 close to the circuit board 14.

Further, the switch element 24 includes a base 241 and a sensing portion 242, the base 241 is fixedly connected to the circuit board 14, the sensing portion 242 is mounted on the base 241 and protrudes toward the air guiding shell 13, and the third transmission portion 233 extends from the end of the first transmission portion 231 to be in contact with the sensing portion 242 of the switch element 24 and is located between the sensing portion 242 and the air guiding shell 13. In the present embodiment, the switch element 24 is, for example, an electronic key, and is used for processing a signal transmitted from the button portion 21.

For other structures of the portable fan, please refer to the prior art, and the description thereof is omitted.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, "upper," "lower," "left," and "right," and the like are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed.

Secondly, the utility model discloses not be limited to the specific details among the above-mentioned embodiment the utility model discloses an in the technical idea scope, can be right the technical scheme of the utility model carry out multiple simple variant, these simple variants all belong to the utility model discloses a protection scope. The individual features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Finally, the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable fan is characterized by comprising a shell (10) and a key assembly, wherein the key assembly comprises a button part (21), an elastic supporting part (22), a connecting rod (23) and a switch element (24), the button part (21) is installed on the shell (10), the elastic supporting part (22) is fixedly connected in the shell (10) and elastically supports the button part (21), the triggering direction of the switch element (24) and the displacement direction of the button part (21) are arranged in a staggered mode, the connecting rod (23) is connected between the button part (21) and the switch element (24) in a linkage mode, and the connecting rod (23) responds to the displacement of the button part (21) and triggers the switch element (24).

2. The portable fan as claimed in claim 1, wherein the housing (10) is provided with a mounting hole penetrating the housing (10), the button part (21) is fixedly connected with the elastic support (22) through the mounting hole, and the length of the elastic support (22) is greater than the diameter of the mounting hole.

3. The portable fan of claim 1, wherein the elastic support member (22) comprises a first connecting portion (221), a second connecting portion (222) and a limiting portion (223), the first connecting portion (221) and the second connecting portion (222) are respectively and fixedly connected to two sides of the limiting portion (223), the first connecting portion (221) and the second connecting portion (222) are fixedly connected to the inner side wall of the housing (10) through shaft hole matching, the button portion (21) is fixedly connected to the limiting portion (223), the button portion (21) comprises a connecting shaft (211), and the connecting shaft (211) penetrates through the limiting portion (223) and is in linkage connection with the connecting shaft (23).

4. The portable fan of claim 3, wherein one end of the first connecting portion (221) is fixedly connected to the stopper portion (223), the other end of the first connecting portion (221) extends in a curved manner around the circumference of the stopper portion (223), one end of the second connecting portion (222) is fixedly connected to the stopper portion (223), and the other end of the second connecting portion (222) extends in a curved manner toward the first connecting portion (221), and the elastic support member (22) further comprises a reinforcing rib (224), and the first connecting portion (221) and the second connecting portion (222) are fixedly connected by the reinforcing rib (224).

5. The portable fan according to any one of claims 1 to 4, wherein a mounting seat (11) is further fixed in the housing (10), the connecting rod (23) comprises a first transmission part (231), a second transmission part (232) and a third transmission part (233), the first transmission part (231) is movably connected in the mounting seat (11), the second transmission part (232) is connected between the button part (21) and the first transmission part (231) in a linkage manner, the third transmission part (233) is connected between the first transmission part (231) and the switch element (24) in a linkage manner, an included angle is formed between the second transmission part (232) and the third transmission part (233), and the included angle is greater than 0 ° and smaller than 180 °.

6. The portable fan as claimed in claim 5, wherein a first rotation shaft (2311) and a second rotation shaft (2312) are fixed to both sides of the first transmission part (231), respectively, and a first shaft hole (102) and a second shaft hole, which are engaged with the first rotation shaft (2311) and the second rotation shaft (2312), are formed in the mounting seat (11), the first rotation shaft (2311) is rotatably coupled in the first shaft hole (102), and the second rotation shaft (2312) is rotatably coupled in the second shaft hole.

7. The portable fan according to claim 5, wherein a fan module (12), an air guiding shell (13) and a circuit board (14) are further disposed in the housing (10), the fan module (12) is mounted in the air guiding shell (13), the air guiding shell (13) is fixedly connected to an inner wall of the housing (10), the circuit board (14) is fixed to one side of the air guiding shell (13), the switch element (24) is electrically connected to one side of the circuit board (14) facing the air guiding shell (13), and the button portion (21) is located on the other side of the air guiding shell (13) along a radial direction of the fan module (12).

8. The portable fan as claimed in claim 7, wherein the second transmission portion (232) extends obliquely from a side of the air guiding casing (13) close to the button portion (21) to a side of the air guiding casing (13) close to the circuit board (14), the mounting seat (11) is fixedly connected to a side of the air guiding casing (13) close to the circuit board (14), and the first transmission portion (231) and the third transmission portion (233) are both located at a side of the air guiding casing (13) close to the circuit board (14).

9. The portable fan as claimed in claim 7, wherein the switching element (24) includes a base (241) and a sensing portion (242), the base (241) is fixedly connected to the circuit board (14), and the sensing portion (242) is mounted on the base (241) and protrudes toward the air guide case (13).

10. Portable fan according to any of claims 1 to 4, characterized in that the housing (10) is provided with an air outlet opening (101), the button portion (21) being located on the same side of the housing (10) as the air outlet opening (101).