CN220687630U - Fan device - Google Patents

Abstract

The utility model discloses a fan device, and relates to the technical field of electric appliances. When the motor on the fan base is driven to work, the conducting wire on the fan blade can cut the magnetic induction wire formed by the plurality of permanent magnets and penetrating through the accommodating cavity in the rotating process to generate induction current, and then the induction current is input into the storage battery to charge the storage battery. When the motor is electrically connected with an external power supply, the motor can be driven to work through the external power supply, and the fan blades can rotate to discharge air, and meanwhile, the battery of the storage battery pack can be charged. The fan device is charged in a stop state without spending a great deal of time, and the product applicability of the device is improved.

Description

Fan device

Technical Field

The utility model relates to the technical field of electric appliances, in particular to a fan device.

Background

Currently, fans are widely used in various environments, such as a home environment, a work environment, and the like, as a general electric appliance. However, fans typically require plug-in operation, and the environment in which they are used and the locations in which they are placed are limited and can only be used in locations near the power supply. Although small charging fans are commercially available, they typically need to be charged in a shut down condition before they can be used in an environment that is off the power supply.

Disclosure of Invention

The present utility model has been made in view of the above-mentioned problems, and it is an object of the present utility model to provide a fan device that overcomes or at least partially solves the above-mentioned problems.

The present utility model provides a fan apparatus, the apparatus comprising:

a fan base;

the fan housing is fixed on the fan base and is enclosed to form a containing cavity;

a plurality of permanent magnets arranged on the fan housing to form a magnetic induction line penetrating through the accommodating cavity;

the motor is fixed on the fan base, and an output shaft of the motor extends into the accommodating cavity;

the fan blades are positioned in the accommodating cavity and fixedly connected with the output shaft of the motor, wherein the fan blades are driven by external wind to do rotary motion under the condition that the motor is powered off;

a wire disposed on the plurality of blades to cut the induction wire to generate an induction current when the blades rotate;

the storage battery pack is mounted on the fan base, is coupled with the lead and is used for storing induction current output by the lead, and the storage battery pack is coupled with the motor to supply power to the motor.

Optionally, the arrangement shape of the wires on the fan blade is fan-shaped.

Optionally, the wires are arranged on the fan blades at intervals along the radial direction of the fan shell from inside to outside.

Optionally, the permanent magnets are in a strip structure, and the plurality of permanent magnets are arranged at equal angles along the radial direction of the fan housing.

Optionally, the angle formed by the plurality of permanent magnets around the center of the fan housing is equal to the ratio between the circumferential angle and the number of the fan blades, so that the wire always cuts the magnetic induction line when the wire rotates with the fan blades.

Optionally, the device further comprises a rectifying module coupled between the wire and the battery pack, and the rectifying module is mounted on the fan base or the fan housing to rectify the induced current generated by the wire.

Optionally, the device further comprises a conductive slip ring, wherein a rotating part of the conductive slip ring is coaxially fixed with an output shaft of the motor, and a fixing part of the conductive slip ring is arranged at the front end of the fan shell; wherein,

the lead is coupled with a first connecting wire on the rotating part of the conductive slip ring, and a second connecting wire on the fixed part of the conductive slip ring is coupled with the rectifying module.

Optionally, a first switch is coupled between the wire and the rectifying module.

Optionally, the output shaft of the motor rotates freely in the power-off state.

Optionally, the fan blade is made of plastic.

Optionally, the permanent magnet is fastened and fixed with the fan housing.

Optionally, a second switch is coupled between the battery pack and the motor.

Compared with the prior art, the motor is electrically connected with an external power supply, when the motor positioned on the fan base is driven to work, the conducting wire positioned on the fan blade can cut the magnetic induction line formed by the plurality of permanent magnets and penetrating through the accommodating cavity in the rotating process, and generate induction current, and then the induction current is input into the storage battery pack to charge the storage battery pack. When the motor is electrically connected with an external power supply, the motor can be driven to work through the external power supply, and the fan blades can rotate to discharge air, and meanwhile, the battery of the storage battery pack can be charged. The fan device is charged in a stop state without spending a great deal of time, and the product applicability of the device is improved.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures.

In the drawings:

fig. 1 is a schematic structural diagram of a fan device according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a fan blade according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of a distribution structure of a permanent magnet in a fan casing according to an embodiment of the present utility model;

FIG. 4 is a block diagram illustrating a current flow of an induced current generated by a fan apparatus according to an embodiment of the present utility model;

FIG. 5 is a block diagram illustrating a current flow of an induced current generated by another fan apparatus according to an embodiment of the present utility model;

reference numerals: 1. a fan base; 2. a fan housing; 21. a receiving chamber; 3. a permanent magnet; 4. a motor; 5. a fan blade; 6. a wire; 7. a rectifying module; 8. a battery pack; 9. a first switch; 10. and a second switch.

Detailed Description

Exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

Referring to fig. 1-5, an embodiment of the present utility model provides a fan apparatus, which may include a fan base 1, a fan housing 2, a plurality of permanent magnets 3, a motor 4, a plurality of blades 5, a wire 6, and a battery pack 7, wherein:

the fan housing 2 is fixed on the fan base 1, and encloses a housing cavity 21. The plurality of permanent magnets 3 are arranged on the fan housing 2 to form a magnetic induction line penetrating the accommodation chamber 21. The motor 4 is fixed on the fan base 1, and an output shaft of the motor 4 extends into the accommodating cavity 21. The fan blades 5 are located in the accommodating cavity 21 and fixedly connected with the output shaft of the motor 4. The wire 6 is arranged on the plurality of blades 5 to cut the induction wire to generate induction current when the blades 5 rotate. The storage battery 7 is mounted on the fan base 1 and coupled with the lead wire 6 to store the induced current output by the lead wire 6, wherein the storage battery 7 is coupled with the motor 4 to supply power to the motor 4.

In this embodiment of the present utility model, the fan housing 2 may include a front end and a rear end, and the front end and the rear end are mutually matched and enclosed to form the accommodating cavity 21. During the use of the fan device, the air outlet end of the fan housing 2 may be defined as the front end of the fan housing 2, and the front end of the fan housing 2 and the rear end of the fan housing 2 may be detachably connected. For example, the front end of the fan housing 2 and the rear end of the fan housing 2 may be fixed by means of a snap fit or screw connection, so that the fan housing 2 may be easily removed and cleaned.

A plurality of permanent magnets 3 extend from the front end of the fan housing 2 to the rear end of the fan housing 2, respectively. In one example, N poles of the plurality of permanent magnets 3 are all located at the front end of the fan housing 2, and S poles of the corresponding plurality of permanent magnets 3 are all located at the rear end of the fan housing 2. In another example, the S poles of the plurality of permanent magnets 3 are all located at the front end of the fan housing 2, and the N poles of the corresponding plurality of permanent magnets 3 are all located at the rear end of the fan housing 2. So that the N-pole and S-pole of all permanent magnets 3 can be guaranteed to be located at different ends of the fan housing 2 to form magnetic induction lines which are consistent in direction and penetrate the accommodating cavity 21. The permanent magnet 3 needs to be disposed on a part of the fan housing 2, that is, the magnetic induction line generated by the permanent magnet can only penetrate a part of the accommodating cavity 21, so that it can be avoided that the magnetic flux passing through the closed conducting wire 6 on the fan blade 5 is unchanged when the fan blade 5 rotates, and no induction current can be generated.

In one example, the fan housing 2 is provided with a mounting groove for extending the output shaft of the motor 4. The output shaft of the motor 4 thus extends through the mounting slot into the receiving space 21, which can be brought into contact with the fan housing 2. In another example, the fan housing 2 may be rotatably connected to an output shaft of the motor 4. Wherein the rotational connection may be achieved by mounting bearings in mounting slots of said fan housing 2.

The loop corresponding to the wire 6 is a closed loop, so that the wire 6 can perform the motion of cutting the magnetic induction line in the magnetic field (namely, the motion direction of the wire 6 in the magnetic field is not parallel to the direction of the magnetic induction line). Thereby generating an induced current.

The battery pack 7 may include at least one battery, and a person skilled in the art may determine the number of batteries in the battery pack 7 and the stored electricity amount of each battery according to the design specification of the fan apparatus, without any limitation. The battery pack 7 is coupled (may also be referred to as electrically connected) to the motor 4 to power the motor 4. The person skilled in the art can adjust the position of the battery pack 7 on the fan base 1 in the actual assembly space.

Under the condition that an external power supply works, the motor 4 drives the fan blades 5 to rotate when being electrified and rotated, so that cooling can be achieved through the fan device. The fan blade 5 may charge the battery pack 7 during rotation. When the electric connection between the motor 4 and an external power supply is disconnected, the electric power of the motor 4 can be supplied through the storage battery 7 electrically connected with the motor 4, so that the fan device works.

In summary, the motor 4 is electrically connected to an external power source, and when the motor 4 located on the fan base 1 is driven to operate, the lead 6 located on the fan blade 5 may cut a magnetic induction line formed by the plurality of permanent magnets 3 and penetrating through the accommodating cavity 21 and generate an induced current, and then the induced current is input into the battery pack 7, so that the battery pack 7 is charged when the fan device operates. When the motor 4 is electrically connected with an external power supply, the motor 4 can be driven to work by the external power supply, and the fan blade 5 can rotate to discharge air and simultaneously charge the battery of the storage battery pack 7. The fan device is charged in a stop state without spending a great deal of time, and the product applicability of the device is improved.

In an alternative embodiment of the utility model, the wires 6 are arranged on the fan blade 5 in a fan shape.

In the embodiment of the present utility model, as shown in fig. 1 and 2, the wires 6 may be arranged along the edge of the fan blade 5 to form a fan shape matching with the fan blade 5, and the wires 6 perform the motion of cutting the magnetic induction wire on two wire segments (that is, a part of wires 6 whose moving direction in the magnetic field is not parallel to the direction of the magnetic induction wire) radially arranged on the fan blade 5, so that the length of the cutting wire of the cutting magnetic induction wire may be increased to obtain a larger induction current.

In an alternative embodiment of the utility model, the wires 6 are arranged on the blades 5 at intervals from inside to outside along the radial direction of the fan housing 2.

In the embodiment of the present utility model, referring to fig. 1 and 2, the spacing arrangement is to avoid electromagnetic interference caused by too close distance between the wires 6. Thus, the wires 6 are arranged at intervals from inside to outside (the center of the fan blade 5 is the inside), so that electromagnetic interference on the fan blade 5 can be avoided. The wires 6 are arranged on two wire sections (namely, a part of wires 6 with the motion direction in the magnetic field and the direction of the magnetic induction wire being not parallel) in the radial direction of the fan blade 5, and the cutting wire length of the cutting magnetic induction wire can be increased from inside to outside to obtain larger induction current. The distance between two adjacent wire segments of the cutting induction wire on each fan blade 5 can be selected by a person skilled in the art according to the diameter of the wire 6 and the diameter of the fan blade 5 in actual design requirements, and is not limited herein.

In one example, the number of wires 6 in all the fan blades 5 may be one or more. In the case of a plurality of wires 6, the wires 6 on each blade 5 are arranged at intervals from inside to outside along the radial direction of the fan housing 2. For example, each wire 6 may be arranged on different blades 5 at the same time, i.e. the number of wires 6 arranged on each blade 5 is the total number of wires 6 arranged on all blades 5. In another example, each wire 6 is arranged on only one fan blade 5, i.e. the sum of the number of wires 6 arranged on each fan blade 5 is the total number of wires 6 arranged on all fan blades 5.

The two outputs of the plurality of wires 6 are respectively coupled to the charging inputs of the battery pack 7, whereby the input current of the battery pack 7 is the sum of the induced currents generated by the plurality of wires 6.

In an alternative embodiment of the utility model, the permanent magnets 3 are in a strip structure, and a plurality of the permanent magnets 3 are arranged at equal angles along the radial direction of the fan housing 2.

In the embodiment of the present utility model, referring to fig. 3, the permanent magnet 3 with a strip structure is disposed on the fan housing 2, so that on one hand, the production cost of the permanent magnet 3 can be reduced, and on the other hand, the blocking area of the front end of the fan housing 2 and the rear end of the fan housing 2 is not excessively large, thereby affecting the normal blowing of the fan device.

In an alternative embodiment of the utility model, a plurality of said permanent magnets 3 form an angle around the centre of said fan housing 2 equal to the ratio between the circumferential angle and the number of said blades 5, so that said wire 6 cuts the induction lines all the time as it rotates with the blades 5.

In the embodiment of the present utility model, the product of the number of the corresponding blades 5 of the fan device and the angle formed by the individual blades 5 around the center of the fan housing 2 is generally a circumferential angle. For example, when the angle formed by the individual blades 5 around the center of the fan housing 2 is 120 °, the number of corresponding blades 5 of the fan device is 3. When the number of the fan blades 5 is N, the corresponding plurality of permanent magnets 3 form an angle of 360/N around the center of the fan housing 2.

For example, when the number of the blades 5 is 3, the angle formed by the plurality of the permanent magnets 3 around the center of the fan housing 2 is 120 °; when the number of the blades 5 is 6, the angle formed by the plurality of permanent magnets 3 around the center of the fan housing 2 is 60 °. Therefore, in the rotation process of the fan blades 5, the fan blades 6 are always positioned in an angle area corresponding to the angle formed by the plurality of permanent magnets 3 around the center of the fan housing 2, so that the movement of cutting magnetic induction lines by the lead wires 6 is ensured all the time, larger current is generated, and the charging efficiency of the storage battery pack 7 is improved.

In an alternative embodiment of the utility model, the permanent magnet 3 is clamped and fixed with the fan housing 2.

In the embodiment of the present utility model, the permanent magnet 3 may be clamped on the fan housing 2, so that the permanent magnet 3 may be easily assembled and disassembled. In an example, when the permanent magnet 3 is a magnet, a fixing frame may be provided to fix the magnet in the fixing frame, and then the fixing frame is fastened and fixed with the fan housing 2. Wherein, the permanent magnet 3 can be made of one of the following materials: neodymium magnets, samarium cobalt magnets, alnico magnets, and ferrite magnets.

In an alternative embodiment of the utility model, the apparatus may further include a rectifying module 8 coupled between the lead wire 6 and the battery pack 7, and the rectifying module 8 is mounted on the fan base 1 or the fan housing 2 to rectify the induced current generated by the lead wire 6.

In the embodiment of the present utility model, the rectifying module 8 is used for converting ac power into dc power, the rectifying module 8 may be mounted on the fan base 1, and a person skilled in the art may adjust the position of the rectifying module 8 on the fan base 1 in the actual assembly space, which is not limited herein. And, the rectifying module 8 is coupled to the wire 6 to form a closed loop for rectifying the induced current. Since the wire 6 cuts the magnetic induction wire to generate alternating current, the rectification module 8 rectifies the induction current to obtain direct current with stable output. The storage battery 7 is coupled with the rectifying module 8 to store the direct current output by the rectifying module 8, so that the stability of the charging current of the storage battery 7 can be ensured, and the service life of the storage battery 7 is prolonged.

In one example, the rectifying module may include a transformer, a rectifier, a filter, a voltage regulator, and the like. The transformer is coupled with the wire to perform step-down or step-up treatment on alternating current generated by the wire. The rectifier is coupled to the transformer for converting the alternating current into unidirectional current. The filter is coupled with the rectifier for eliminating noise fluctuation corresponding to unidirectional current, and the voltage stabilizer is coupled with the filter for maintaining the output voltage at a stable value.

An alternative embodiment of the utility model, the device may further include an electrically conductive slip ring, a rotating portion of the electrically conductive slip ring is coaxially fixed to the output shaft of the motor 4, and a fixing portion of the electrically conductive slip ring is mounted at a front end of the fan housing 2; wherein the lead wire 6 is coupled with a first connecting wire on the rotating part of the conductive slip ring, and a second connecting wire on the fixed part of the conductive slip ring is coupled with the rectifying module 8.

In the embodiment of the utility model, the conductive slip ring refers to a rotary joint for transmitting electric energy and signals, and the rotary joint can maintain the connectivity of a circuit in rotary motion. The conductive slip ring can comprise a rotating part and a fixing part, wherein a first connecting wire is arranged on the rotating part of the conductive slip ring, and a second connecting wire is arranged on the fixing part of the conductive slip ring.

The fixed part of the conductive slip ring is mounted on the front end of the fan housing 2, and the rotating part of the conductive slip ring is coaxially fixed with the output shaft of the motor 4, wherein coaxial refers to that the central axis of the rotating part of the conductive slip ring coincides with the central axis of the output shaft of the motor 4.

The lead wire 6 is coupled (electrically connected) to a first connection wire, and the rectifying module 8 is coupled to the second connection wire. The conducting wire 6 rotates along with the fan blade 5, and the rotating part of the conductive slip ring is driven to rotate through the first connecting wire connected with the conducting wire 6, so that the problem of winding of the conducting wire 6 is solved. When the induction current generated by the cutting magnetic induction line motion of the lead 6 is transmitted to the first connecting line, the electric signal can be transmitted inside the conductive slip ring through the rotation of the rotating part of the conductive slip ring. And the induced current generated by the lead wire 6 is transmitted to the rectifying module through the second connecting wire. Therefore, the conducting wire 6 can drive the rotating part of the conductive slip ring to rotate when rotating along with the fan blade 5, and the conducting wire 6 and the rectifying module 8 can be ensured to be electrically connected all the time. Thereby ensuring that the wire 6 will not be wound during the rotation of the fan blade 5.

In an alternative embodiment of the utility model, a first switch 9 is coupled between the conductor 6 and the rectifying module 8.

In the embodiment of the present utility model, referring to fig. 4 and 5, the first switch 9 is used to control whether to charge the storage battery 7, and when the storage battery 7 needs to be charged, for example, when the motor 4 is electrically connected to an external power supply, the first switch 9 is closed, so that the storage battery 7 can be charged by rotating the fan blade 5; in case no charging of the battery pack 7 is required, for example, when the motor 4 is disconnected from an external power source, the first switch 9 is turned off.

In an alternative embodiment of the utility model, the output shaft of the motor 4 is free to rotate in the de-energized state.

In the embodiment of the present utility model, the output shaft of the motor 4 rotates freely in the power-off state, so that the fan blade 5 can continue to perform the rotation motion under the driving of the external wind when the motor 4 is powered off. That is, in the case that the fan apparatus has no external power, the fan blades 5 can be rotated by the air flow. Therefore, in the environment with larger air flow, the fan blades 5 are driven to rotate by the air flow, and the corresponding lead wires 6 generate induction current to charge the storage battery 7. Therefore, the battery pack 7 is charged under the condition that the battery pack 7 does not output electric quantity, the storage electric quantity of the battery pack 7 can be improved, and the duration of the fan device when the fan device leaves an external power supply can be prolonged more conveniently. In one example, the motor 4 may be a brushless dc motor, etc., and the output shaft may still rotate freely after the power is turned off.

In an alternative embodiment of the utility model, the fan blade 5 is made of plastic.

In the embodiment of the utility model, the plastic is a material with lighter weight, and the fan blade 5 made of the plastic material can reduce the weight of the fan blade 5. On the one hand, the production cost of the fan blade 5 can be reduced, which is beneficial to the miniaturization design of the motor 4; on the other hand, the air pressure of the external air flow driving the rotation of the fan blade 5 may be reduced. Therefore, when the fan device is used in an environment with only breeze, the fan blades 5 can be blown to rotate, so that the charging difficulty of the fan device can be reduced, and the product applicability of the fan device is further improved.

An alternative embodiment of the utility model is that a second switch 10 is coupled between the battery pack 7 and the motor 4.

In the embodiment of the present utility model, referring to fig. 4 and 5, the second switch 10 is used to control whether the battery pack 7 supplies power to the motor 4. That is, the second switch 10 is coupled to the control loop formed by the battery pack 7 and the motor 4, wherein the battery pack 7 is used as a power source, the motor 4 is used as a load, and the second switch 10 is located between the positive electrode of the battery pack 7 and the motor 4. When power is required to be supplied to the motor 4, the second switch 10 is closed, so that the storage battery pack 7 is in a discharging state, the motor 4 is driven to rotate, and the fan device is driven to work.

In an alternative embodiment of the utility model, a driving circuit (also referred to as a fan speed regulating circuit) may be further disposed between the battery pack 7 and the motor 4, wherein the second switch 10 may be coupled between the battery pack 7 and the driving circuit, and the driving circuit is used for regulating the rotation speed of the motor 4, so as to regulate the wind speed of the fan device by the rotation speed of the motor 4. In one example, a plurality of wind speed switches are provided at positions of the fan base 1 corresponding to the driving circuits, so that the wind speed of the fan apparatus can be adjusted and controlled by the plurality of wind speed switches, respectively.

In an alternative embodiment of the utility model, the fan apparatus may further include an indicator light module coupled to the output of the battery pack 7 to indicate the current power of the battery pack 7 through the indicator light module. In one example, the indicator light module may include a first voltage comparator, a first resistor, a first PNP transistor, a first NPN transistor, a first relay, a second relay, a green LED light, and a red LED light. The level output end of the first voltage comparator is coupled with the first resistor, one end of the first PNP triode and one end of the first NPN triode are coupled with the first resistor after being connected in parallel, the collector electrode of the first PNP triode is coupled with the coil of the first relay, and the emitter electrode of the first NPN triode is coupled with the coil of the second relay. The contact of the second relay is located in a power supply loop of the green LED lamp, the contact of the first relay is located in a power supply loop of the red LED lamp, and the emitter of the first PNP triode and the collector of the first NPN triode are respectively coupled with a power supply.

The reference voltage value of the first voltage comparator is an output voltage value when the residual electric quantity corresponding to the storage battery pack 7 is a preset percentage value. The preset percentage value may be 30%, 20%, 10%, etc., so that the output end of the storage battery 7 is coupled to the positive voltage input end of the first voltage comparator, when the voltage of the output end of the storage battery 7 is greater than the reference voltage value, the first voltage comparator outputs a high level, the first NPN triode is turned on, the first PNP triode is turned off, the second relay is turned on, and the green LED lamp is turned on. When the voltage of the output end of the storage battery pack 7 is smaller than the reference voltage value, the first voltage comparator outputs a low level, the first PNP triode is conducted, the first NPN triode is cut off, the first relay is electrically closed, and the red LED lamp is turned on. Thus, the remaining capacity of the battery pack 7 is not large when the red LED lamp is on, and charging is required.

According to the logic, a yellow LED lamp and related electronic devices can be additionally arranged, so that the multi-stage display of the residual electric quantity of the storage battery pack 7 is realized. For example, the multi-level display may be a display in which a first reference voltage value, which is an output voltage value when the remaining capacity corresponding to the battery pack 7 may be a first preset percentage value, and a second reference voltage value are preset; the second reference voltage value is an output voltage value when the remaining capacity corresponding to the storage battery 7 can be a second preset percentage value. Wherein, the more the corresponding residual electric quantity of the storage battery 7 is, the higher the corresponding output voltage value is; the smaller the corresponding residual capacity of the battery pack 7 is, the lower the corresponding output voltage value is.

And under the condition that the first reference voltage value is larger than the second reference voltage value, a yellow LED lamp can be additionally arranged, and according to the logic of the indicator lamp module, the first reference voltage value and the second reference voltage value are respectively used as the voltage values of the negative phase input ends of two different voltage comparators. And combining the conduction condition of the triode, and when the voltage of the output end of the storage battery pack 7 is larger than a first reference voltage value, the green LED lamp is lighted; when the voltage of the output end of the storage battery pack 7 is smaller than a second reference voltage value, the red LED lamp is turned on; when the voltage of the output end of the storage battery pack 7 is smaller than the first reference voltage value and larger than the second reference voltage value, the yellow LED lamp is turned on. So that the user can determine the remaining capacity of the current battery pack 7 according to the color of the indication lamp.

In summary, the embodiment of the utility model discloses a fan device, wherein the motor 4 in the fan device is electrically connected with an external power source, when the motor 4 on the fan base 1 is driven to work, the conducting wire 6 on the fan blade 5 can cut the magnetic induction lines formed by the plurality of permanent magnets 3 and penetrating through the accommodating cavity 21 in the rotating process to generate induction current, and then the induction current is input into the storage battery 7 to charge the storage battery 7. When the motor 4 is electrically connected with an external power supply, the motor 4 can be driven to work by the external power supply, and the fan blade 5 can rotate to discharge air and simultaneously charge the battery of the storage battery pack 7. The fan device is charged in a stop state without spending a great deal of time, and the product applicability of the device is improved.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

As will be readily appreciated by those skilled in the art: any combination of the above embodiments is possible, and thus is an embodiment of the present utility model, but the present specification is not limited by the text.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the above description of exemplary embodiments of the utility model, various features of the utility model are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

Claims (12)

1. A fan apparatus, the apparatus comprising:

a fan base (1);

the fan housing (2), the said fan housing (2) is fixed on said fan base (1), and enclose and set up a holding cavity (21);

a plurality of permanent magnets (3), the plurality of permanent magnets (3) being arranged on the fan housing (2) to form a magnetic induction line penetrating through the accommodation cavity (21);

the motor (4) is fixed on the fan base (1), and an output shaft of the motor (4) extends into the accommodating cavity (21);

the fan blades (5) are positioned in the accommodating cavity (21) and are fixedly connected with the output shaft of the motor (4);

a wire (6), the wire (6) being arranged on a plurality of blades (5) to cut the induction wire to generate an induction current when the blades (5) rotate;

the storage battery (7) is installed on the fan base (1) and is coupled with the lead (6) so as to store the induction current output by the lead (6), wherein the storage battery (7) is coupled with the motor (4) so as to supply power to the motor (4).

2. Fan device according to claim 1, characterized in that the wire (6) is arranged in a fan-like shape on the fan blade (5).

3. Fan device according to claim 2, characterized in that the wires (6) are arranged on the blades (5) at intervals from inside to outside in the radial direction of the fan housing (2).

4. A fan device according to claim 1, characterized in that the permanent magnets (3) are of a strip-like structure, and that a plurality of the permanent magnets (3) are arranged at equal angles in the radial direction of the fan housing (2).

5. A fan device according to claim 4, characterized in that the angle formed by the plurality of permanent magnets (3) around the centre of the fan housing (2) is equal to the ratio between the circumferential angle and the number of blades (5) so that the wire (6) cuts the induction line all the time as the blades (5) rotate.

6. The fan device according to claim 1, characterized in that it further comprises a rectifying module (8) coupled between the wire (6) and the battery (7), said rectifying module (8) being mounted on the fan base (1) or on the fan housing (2) to rectify the induced current generated by the wire (6).

7. The fan device according to claim 6, characterized in that the device further comprises an electrically conductive slip ring, the rotating part of which is coaxially fixed to the output shaft of the motor (4), the fixed part of which is mounted to the front end of the fan housing (2); wherein,

the lead (6) is coupled with a first connecting wire on the rotating part of the conductive slip ring, and a second connecting wire on the fixed part of the conductive slip ring is coupled with the rectifying module (8).

8. Fan device according to claim 6, characterized in that a first switch (9) is coupled between the conductor (6) and the rectifying module (8).

9. Fan device according to claim 1, characterized in that the output shaft of the motor (4) is free to rotate in the de-energized state.

10. Fan device according to claim 9, characterized in that the blades (5) are made of plastic.

11. Fan device according to claim 1, characterized in that the permanent magnet (3) is fastened to the fan housing (2).

12. Fan device according to claim 1, characterized in that a second switch (10) is coupled between the battery (7) and the motor (4).