Multifunctional small fan

Abstract

The utility model provides a multifunctional small fan, which relates to the technical field of fans and comprises a machine body, a motor component and a fan component, a control circuit board and a battery are arranged in the machine body, the battery supplies power to the motor component, the motor component drives the fan component to rotate, the fan component comprises fan blades, a base and an upper cover, and the fan blades are rotatably connected with the base. A torsion spring is connected between the fan blades and the base, the torsion spring achieves automatic reset of the fan blades, an LED lamp panel is arranged in the upper cover, the battery supplies power to the LED lamp panel, the light effect of the small fan is achieved, the small fan is further provided with an installation base and a protective cover, the protective cover is rotationally connected with the installation base, the protective cover can cover the fan blade assembly, and when the small fan does not work, the fan blade assembly can rotate around the installation base. And the fan blade assembly is subjected to dustproof and anti-falling protection and the like by rotating the protective cover.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field especially relates to a multifunctional small fan. BACKGROUND

[0002] Small fan is a kind of novel electric fan, is suitable for summer outing and carries along with the summer heat taking cool electric appliance, generally built-in battery, USB charging interface, can repeatedly charge and use, the fan blade of traditional small fan is fixed structure, i.e. the miniaturization design of traditional fan, therefore, generally the position of fan blade is much larger than body, causes certain inconvenience in actual carrying process, and traditional small fan function is relatively single, does not have light effect, fan blade outside basically adopts mesh cover protection, does not have dustproof effect etc. CONTENT OF UTILITY MODEL

[0003] In view of prior art deficiency, the utility model provides a kind of multifunctional small fan, realize the automatic retraction of fan blade, avoid fan blade to occupy larger space when not using small fan, facilitate carrying, fan blade outside is provided with rotating protective cover structure, small fan can carry out dustproof, anti-collision protection to fan blade assembly and other structures when not using, and LED lamp plate is provided on fan blade assembly, so that it has light effect etc.

[0004] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0005] A kind of multifunctional small fan, including body, battery, control circuit board are arranged in body, battery and control circuit board are electrically connected, the upper end of body is clamped with hemispherical surface assembly seat, the bottom of hemispherical surface assembly seat is provided with the through slot for wiring of body, body is provided with touch key, pilot lamp, touch key is used on the touch switch of control circuit board, realizes the start-stop operation such as small fan, pilot lamp is used to show the electric quantity of small fan and / or the working mode of small fan, motor assembly is fixed in hemispherical surface assembly seat, motor assembly is directly or indirectly electrically connected with battery, motor assembly includes motor, motor is equipped with motor rod, motor rod terminal end is inserted and is fixed with fan blade assembly;

[0006] Fan blade assembly includes base, fan blade, torsion spring, upper cover, fan blade one end is rotatably connected with base end, torsion spring is arranged between base and fan blade, one end of torsion spring is fixed on base, the other end is fixed on fan blade, upper cover and base are fixedly connected using screw, fan blade is arranged between base and upper cover.

[0007] Fan blade assembly is rotated by the motor rod of motor, fan blade is unfolded under the action of centrifugal force, blows air outward, when motor stops working, fan blade is automatically reset under the action of torsion spring.

[0008] Preferably, the motor assembly further comprises a conductive spring sleeved on the motor rod, a conductive sheet is arranged on the bottom outside of the motor rod and located on the shell of the motor, the conductive sheet is directly or indirectly connected with the battery through a wire, the upper cover is internally provided with an LED lamp plate, the back of the LED lamp plate is provided with a first conductive sheet and a second conductive sheet, the first conductive sheet is insulated and separated from the second conductive sheet, the first conductive sheet and the second conductive sheet are respectively connected with the positive and negative connection points of the LED lamp plate, the cover plate is clamped on the hemispherical assembly seat, the cover plate is provided with an avoiding hole and a conductive column, the conductive column is directly or indirectly connected with the battery through a wire or a conductive wire, the motor rod and the conductive spring pass through the avoiding hole, the conductive column is abuttingly connected with the first conductive sheet, one end of the conductive spring is abuttingly connected with the conductive sheet, and the other end of the conductive spring is abuttingly connected with the second conductive sheet, so that the lighting of the LED lamp plate can be controlled through the touch key.

[0009] Preferably, the hemispherical assembly seat is internally provided with a mounting seat, a motor slot is arranged in the middle of the mounting seat, the motor assembly is further provided with a motor seat, the motor towards the one end of the motor rod is sleeved in the motor seat, the other end of the motor is arranged in the motor slot, the motor seat is fixedly connected with the mounting seat, and the cover plate is also fixedly connected with the mounting seat; the mounting seat is provided with a through hole and a wire passing hole, the through hole is used for wiring of the electrical connection between the motor and the battery, and the wire passing hole is used for wiring of the electrical connection between the LED lamp plate and the battery.

[0010] Preferably, the mounting seat is provided with a sleeve shaft on both sides, the sleeve shaft is provided with a rotating shaft on the outside, a spring is sleeved on the sleeve shaft, the mounting seat is provided with a protective cover on the outside, the protective cover can be made of transparent material, the protective cover is provided with a rotating shaft hole on both sides, the rotating shaft is rotatably connected with the rotating shaft hole, one end of the spring is fixed on the mounting seat, and the other end of the spring is fixed on the protective cover, so that the automatic reset of the protective cover is realized through the spring.

[0011] Preferably, the sleeve shaft and the rotating shaft are provided with a limiting piece below, the limiting piece is provided with a limiting protrusion, the protective cover is provided with a limiting groove extending inward on the inside of the rotating shaft hole, the limiting protrusion is clamped and limited in cooperation with the limiting groove, when the small fan is not used, the protective cover can be rotated to cover the fan blade assembly, at this time, the limiting protrusion is arranged in the limiting groove, the clamping positioning of the protective cover is realized, when the small fan is needed to be used, the protective cover is rotated, after the limiting protrusion is separated from the limiting groove, the protective cover is automatically reset under the action of the spring recovery torque.

[0012] Preferably, the protective cover is provided with a convex dial block on the upper end, which facilitates the rotating operation of the protective cover and plays a limiting role, so that the protective cover is prevented from being completely rotated into the hemispherical assembly seat.

[0013] Preferably, the body is provided with a hanging rope connecting part on both sides, which is used for connecting the hanging rope and is convenient for carrying.

[0014] Preferably, the bottom of the body is provided with a receiving groove, a charging wire is placed in the receiving groove, the charging wire is convenient for the small fan to charge and use, the bottom of the body is further provided with a charging interface, the charging interface is directly or indirectly connected with the battery, and the bottom of the body is further connected with a bottom cover, the bottom cover can be magnetically attracted or clamped to the bottom of the body, or other connection structures capable of achieving the clamping of the bottom cover to the bottom of the body can be used.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] In the utility model, the fan blade can be unfolded to blow air outward by centrifugal force when used, and can be automatically reset by a torsion spring when not used, so that the space occupation of the fan blade is reduced and the fan blade is convenient to carry; the fan blade assembly is provided with an LED lamp panel to realize light effect; the fan assembly is externally provided with a rotatingly connected protective cover to prevent dust and falling protection of the fan blade assembly; the bottom of the body is provided with a receiving groove to facilitate the carrying of the charging wire; and the hanging rope connecting part designed on the side of the body facilitates the connection of the small fan with the hanging rope and the carrying of the small fan. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a fan blade use state view in the utility model;

[0019] Figure 3 It is a transparent protective cover closed use state view in the utility model;

[0020] Figure 4 It is an explosion view of the utility model;

[0021] Figure 5 It is a fan blade assembly schematic view in the utility model;

[0022] Figure 6 It is Figure 5 It is an LED lamp panel back surface structure schematic view in the utility model;

[0023] Figure 7 It is a motor assembly schematic view in the utility model;

[0024] Figure 8 It is an installation seat schematic view in the utility model;

[0025] Figure 9 It is a cover plate schematic view in the utility model;

[0026] Figure 10 It is a transparent protective cover schematic view in the utility model;

[0027] Figure 11 It is a body schematic view in the utility model.

[0028] Legend:

[0029] 1, body;

[0030] 11, hemispherical assembly seat; 12, hanging rope connecting part; 13, bottom cover; 14, storage groove; 15, touch button; 16, indicator light; 17, charging interface;

[0031] 2, motor assembly;

[0032] 21, motor seat; 22, motor; 23, motor rod; 24, conductive sheet; 25, conductive spring;

[0033] 3, fan blade assembly;

[0034] 31, base; 32, fan blade; 33, torsion spring; 34, upper cover; 35, LED light plate; 351, first conductive sheet; 352, second conductive sheet;

[0035] 4, mounting seat;

[0036] 41, motor groove; 42, through hole; 43, wire hole; 44, sleeve shaft; 45, rotating shaft; 46, limiting piece; 47, limiting protrusion;

[0037] 5, cover plate; 51, avoidance hole; 52, conductive column;

[0038] 6, protective cover; 61, rotating shaft hole; 62, limiting groove; 63, dial block;

[0039] 7, charging wire. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0041] In order to facilitate understanding of the present application, the present application will be described more fully with reference to the related description, and several embodiments of the present application are given. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0042] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0044] As shown in Figures 1-11 The utility model provides a multi -functional small fan, including fuselage 1, be provided with battery (in the drawing is not shown), control circuit board (in the drawing is not shown) in fuselage 1, battery and control circuit board electricity connection, fuselage 1 upper end joint has hemispherical surface assembly seat 11, the bottom of hemispherical surface assembly seat 11 is set up the through slot for wiring of fuselage 1, be provided with touch button 15, pilot lamp 16 on fuselage 1, touch button 15 act on the touch switch on control circuit board, realize the start and stop of small fan etc. operation, pilot lamp 16 is used to show the electric quantity of small fan and / or the working mode of small fan, hemispherical surface assembly seat 11 is fixed with motor assembly 2, motor assembly 2 directly or indirectly with battery electricity connection, motor assembly 2 includes motor 22, motor 22 is equipped with motor rod 23, motor rod 23 end plug joint is fixed with fan blade assembly 3;

[0045] Fan blade assembly 3 includes base 31, fan blade 32, torsion spring 33, upper cover 34, fan blade 32 one end is rotatably connected with base 31 end, torsion spring 33 is arranged between base 31 and fan blade 32, one end of torsion spring 33 is fixed on base 31, the other end is fixed on fan blade 32, upper cover 34 and base 31 are fixedly connected with screw, fan blade 32 is arranged between base 31 and upper cover 34.

[0046] As shown in Figure 2 Fan blade 32 is unfolded under the centrifugal force and blows air outward by the motor rod 23 of motor 22 driving fan blade assembly 3 to rotate, and fan blade 32 is automatically reset under the action of torsion spring 33 when motor 22 stops working.

[0047] Furthermore, the motor assembly 2 also includes a conductive spring 25, which is sleeved on the motor rod 23. A conductive sheet 24 is provided on the outer bottom of the motor rod 23, located on the housing of the motor 22. The conductive sheet 24 is directly or indirectly connected to the battery via wires. An LED light panel 35 is provided inside the upper cover 34. A first conductive sheet 351 and a second conductive sheet 352 are provided on the back of the LED light panel 35. The first conductive sheet 351 and the second conductive sheet 352 are insulated from each other. The first conductive sheet 351 and the second conductive sheet 352 are respectively connected to the LED light... The positive and negative terminals of plate 35 are connected. A cover plate 5 is snapped onto the hemispherical mounting base 11. The cover plate 5 is provided with a clearance hole 51 and a conductive post 52. The conductive post 52 is directly or indirectly connected to the battery via an electric wire or conductive wire. The motor rod 23 and the conductive spring 25 pass through the clearance hole 51. The conductive post 52 is abutted and connected to the first conductive sheet 351. One end of the conductive spring 25 is abutted and connected to the conductive sheet 24, and the other end is abutted and connected to the second conductive sheet 352. In this way, the LED light plate 35 can be lit by the touch button 15.

[0048] Furthermore, the hemispherical mounting base 11 is provided with a mounting base 4, and a motor slot 41 is provided in the middle of the mounting base 4. The motor assembly 2 is also provided with a motor base 21. One end of the motor 22 facing the motor rod 23 is fitted into the motor base 21, and the other end of the motor 22 is placed in the motor slot 41. The motor base 21 is fixedly connected to the mounting base 4, and the cover plate 5 is also fixedly connected to the mounting base 4. The mounting base 4 is provided with a through hole 42 and a wire hole 43. The through hole 42 is used for wiring the motor 22 to the battery for electrical connection, and the wire hole 43 is used for wiring the LED light board 35 to the battery for electrical connection.

[0049] Furthermore, the mounting base 4 has sleeve shafts 44 on both sides, and a rotating shaft 45 on the outside of the sleeve shafts 44. A spring (not shown in the figure) is fitted on the sleeve shafts 44. A protective cover 6 is provided on the outside of the mounting base 4. The protective cover 6 can be made of transparent material. The protective cover 6 has rotating shaft holes 61 on both sides. The rotating shaft 45 is rotatably engaged with the rotating shaft holes 61. One end of the spring is fixed on the mounting base 4, and the other end of the spring is fixed on the protective cover 6. The spring enables the protective cover 6 to automatically reset.

[0050] Furthermore, a limiting member 46 is provided below the sleeve shaft 44 and the rotating shaft 45, and a limiting protrusion 47 is provided on the limiting member 46. The protective cover 6 extends inside the rotating shaft hole 61 and is provided with a limiting groove 62. The limiting protrusion 47 and the limiting groove 62 are engaged and limited in a limiting fit, such as... Figure 3 As shown, when the small fan is not in use, the protective cover 6 can be rotated to cover the fan blade assembly 3. At this time, the limiting protrusion 47 is placed in the limiting groove 62 to achieve the snap-fit ​​positioning of the protective cover 6. When the small fan needs to be used, the protective cover 6 is rotated. When the limiting protrusion 47 is disengaged from the limiting groove 62, the protective cover 6 automatically resets under the action of the spring return torque.

[0051] Further, the upper end of the protective cover 6 is provided with a convex knob 63, facilitating the rotating operation of the protective cover 6, and playing a limiting role, avoiding the protective cover 6 from being completely turned into the hemispherical surface assembly seat 11.

[0052] Further, the two sides of the body 1 are provided with a hanging rope connecting part 12 for connecting the hanging rope, facilitating carrying.

[0053] Further, as shown in the figure, Figure 11 The bottom of the body 1 is provided with a receiving groove 14, and the receiving groove 14 is placed with a charging line 7, facilitating the charging use of the small fan, and the bottom of the body 1 is further provided with a charging interface 17, which is directly or indirectly connected with the battery electric signal, and the bottom of the body 1 is further connected with a bottom cover 13, which can be magnetically attracted or clamped on the bottom of the body 1, or other connection structures capable of realizing the buckling of the bottom cover 13 on the bottom of the body 1.

[0054] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multifunctional small fan, comprising a fuselage (1), a battery and a control circuit board are arranged in the fuselage (1), the battery and the control circuit board are electrically connected, characterized in that, The upper end of the fuselage (1) is clamped with a hemispherical assembly seat (11), the bottom of the hemispherical assembly seat (11) is provided with a through slot for wiring, the fuselage (1) is provided with a touch button (15) and an indicator light (16), the hemispherical assembly seat (11) is fixed with a motor assembly (2), the motor assembly (2) comprises a motor (22), the motor (22) is provided with a motor rod (23), the end of the motor rod (23) is inserted and fixed with a fan blade assembly (3); The fan blade assembly (3) comprises a base (31), a fan blade (32), a torsion spring (33) and an upper cover (34), one end of the fan blade (32) is rotatably connected with the end of the base (31), the torsion spring (33) is arranged between the base (31) and the fan blade (32), one end of the torsion spring (33) is fixed on the base (31), and the other end is fixed on the fan blade (32), the upper cover (34) is fixedly connected with the base (31) by screws, and the fan blade (32) is arranged between the base (31) and the upper cover (34).

2. The multi-functional small fan according to claim 1, characterized in that: The motor assembly (2) further comprises a conductive spring (25), the conductive spring (25) is sleeved on the motor rod (23), the outer side of the bottom of the motor rod (23) is provided with a conductive sheet (24) on the shell of the motor (22), the conductive sheet (24) is connected with the battery, the upper cover (34) is provided with an LED lamp plate (35), the back of the LED lamp plate (35) is provided with a first conductive sheet (351) and a second conductive sheet (352), the first conductive sheet (351) and the second conductive sheet (352) are insulated and isolated, the first conductive sheet (351) and the second conductive sheet (352) are connected with the positive and negative connection points of the LED lamp plate (35) respectively, the hemispherical assembly seat (11) is clamped with a cover plate (5), the cover plate (5) is provided with a position avoiding hole (51) and a conductive column (52), the conductive column (52) is connected with the battery, the motor rod (23) and the conductive spring (25) pass through the position avoiding hole (51), the conductive column (52) abuts against the first conductive sheet (351), one end of the conductive spring (25) abuts against the conductive sheet (24), and the other end abuts against the second conductive sheet (352).

3. The multi-functional small fan according to claim 2, wherein: The hemispherical assembly seat (11) is provided with a mounting seat (4), the middle of the mounting seat (4) is provided with a motor groove (41), the motor assembly (2) is further provided with a motor seat (21), one end of the motor (22) towards the motor rod (23) is sleeved in the motor seat (21), the other end of the motor (22) is arranged in the motor groove (41), the motor seat (21) is fixedly connected with the mounting seat (4), the cover plate (5) is also fixedly connected with the mounting seat (4), the mounting seat (4) is provided with a through hole (42) and a wire passing hole (43), the through hole (42) is used for wiring of the motor (22) and the battery, and the wire passing hole (43) is used for wiring of the LED lamp plate and the battery.

4. The multi-functional small fan according to claim 3, wherein: The mounting seat (4) is provided with a sleeve shaft (44) on both sides, the outer side of the sleeve shaft (44) is provided with a rotating shaft (45), the sleeve shaft (44) is provided with a spring, the outer side of the mounting seat (4) is provided with a protective cover (6), the protective cover (6) is provided with a rotating shaft hole (61) on both sides, the rotating shaft (45) is rotatably connected with the rotating shaft hole (61), one end of the spring is fixed on the mounting seat (4), and the other end of the spring is fixed on the protective cover (6).

5. The multi-functional small fan according to claim 4, wherein: The sleeve shaft (44) and the rotating shaft (45) are provided with a limiting piece (46) below, the limiting piece (46) is provided with a limiting protrusion (47), the protective cover (6) is provided with a limiting groove (62) extending inwardly in the rotating shaft hole (61), and the limiting protrusion (47) is connected with the limiting groove (62) in limiting connection.

6. The multi-functional small fan according to claim 5, wherein: The protective cover (6) is provided with a convex knob (63) on the upper end.

7. The multi-functional small fan according to claim 1, wherein: The body (1) is provided with a rope connecting part (12) on both sides.

8. The multi-functional small fan according to claim 1, wherein: The bottom of the body (1) is provided with a storage groove (14), the storage groove (14) is provided with a charging wire (7), the bottom of the body (1) is further provided with a charging interface (17), the charging interface (17) is connected with the battery, and the bottom of the body (1) is further connected with a bottom cover (13).

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