CN201310476Y - Electric fan with self-generating function - Google Patents

Abstract

An electric fan with a self-generating function comprises a supporting seat with an accommodating space, an alternating current motor arranged in the accommodating space, an inner cover fixedly arranged on the supporting seat, a fan wheel driven by the alternating current motor to rotate, and an induction unit generating induced electromotive force along with the rotation of the fan wheel. The utility model has the advantages that by means of the design of the inner cover and the induction unit, the electric fan can continuously generate the self-generating effect when being electrified and operated, the power generation state is stable, and the power is supplied to other electrical equipment to generate additional functions, but still more power consumption and higher electricity cost can not be consumed; moreover, the sensing unit has only general circuit elements, and does not have complex circuit design and high-cost power supply structure, so that the whole manufacturing cost is not easy to increase.

Description

Electric fan with self-generating function

【Technical field】

The utility model relates to an electric fan, in particular to an electric fan with self-generating function.

【Background technique】

Referring to Fig. 1, the existing electric fan 1 comprises a hollow support base 11, an AC motor 12 hidden in the support base 11, and a fan wheel 13 driven by the AC motor 12, the AC motor 12 has a rotating shaft 121 for outputting power, and the fan wheel 13 has a hub 131 fixed on the rotating shaft 121 , and several fan blades 132 extending outward from the peripheral surface of the hub 131 at intervals.

With this design, when the AC motor 12 is energized and operated, its rotating shaft 121 will drive the hub 131 and the fan blade 132 to rotate accordingly, and the fan blade 132 will generate airflow to blow to the external environment.

Therefore, generally speaking, the existing electric fan 1 is a pure electrical device, which can only consume and use electric energy without generating electric energy. Mosquito coils, ultraviolet germicidal lamps, energized fragrances, etc., so that the existing electric fan 1 can produce additional functions such as lighting, mosquito repelling, sterilization, and fragrance. 1. In addition, it is necessary to find a suitable space for placing the power boxes or batteries of the above-mentioned various electrical equipment. However, adding a power box will further increase the overall manufacturing cost, and adding a battery is prone to the disadvantage of insufficient battery storage.

Or the electric fan manufacturer can redesign the internal circuit of the existing electric fan 1, and the AC motor 12 and the above-mentioned various electrical equipments all use the mains directly together, but such a design will also make the existing electrics When the fan 1 is in use, it consumes more electric energy, which increases the cost of electricity.

【Content of utility model】

The purpose of this utility model is to provide an electric fan with self-generating function. The structural design of self-generating is not easy to generate many additional overall manufacturing costs and electricity costs, and the power generating state is relatively stable.

Therefore, the electric fan with self-generating function of the utility model includes a support seat with an accommodating space, an AC motor arranged in the accommodating space, an inner cover fixed on the support seat, a quilt A fan wheel driven by the AC motor, and an induction unit that generates an induced electromotive force as the fan wheel rotates.

The AC motor has a rotating shaft for outputting power, and the rotating shaft passes through the inner cover, and the fan wheel has a hollow hub fixed on the rotating shaft and surrounding the outer side of the inner cover, and several fan blades extending outward from the outer peripheral surface of the hub at intervals, the induction unit has an induction magnet ring fixed on the inner cover, a circuit board fixed on the inner peripheral surface of the hub, and a It is electrically connected to the induction coil arranged on the circuit board.

When the AC motor is energized and operated, its rotating shaft will drive the hub, fan blade, circuit board, and induction coil to rotate accordingly, and the induction magnet ring fixed on the inner cover will cooperate with the continuously rotating induction coil There is a magnetic interaction between them, so that the induction coil generates an induced electromotive force to supply current to various external electrical devices.

The beneficial effect of the utility model is that: by means of the design of the inner cover and the induction unit, the electric fan can continuously generate the effect of self-generation when it is energized and running, the power generation state is relatively stable, and the power is supplied to other electrical equipment to generate Additional functions, but still will not consume more electricity and increase electricity costs; moreover, the induction magnet ring, circuit board, and induction coil of the induction unit are only general circuit components, and there is no complicated circuit The design and high-cost power supply structure are not easy to generate many additional overall manufacturing costs.

【Description of drawings】

Fig. 1 is a side sectional view illustrating the structural design of an existing electric fan;

Fig. 2 is a side sectional view illustrating the first preferred embodiment of the electric fan with self-generating function of the utility model;

Fig. 3 is a partial side sectional view illustrating the second preferred embodiment of the electric fan with self-generating function of the present invention;

Fig. 4 is a perspective view illustrating the combination of the appearance of the inner cover and the induction magnet ring of the second preferred embodiment;

Fig. 5 is a three-dimensional view illustrating the third preferred embodiment of the electric fan with self-generating function of the present invention, the appearance combination of the inner cover and the induction magnet ring.

【Detailed ways】

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

Referring to Fig. 2, the first preferred embodiment of the electric fan 2 with self-generating function of the present invention includes a support base 21 with a housing space 211, an AC motor 22 arranged in the housing space 211, An inner cover 23 fixed on the support base 21, a fan wheel 24 driven by the AC motor 22, an induction unit 25 that generates an induced electromotive force as the fan wheel 24 rotates, and a fan wheel 25 fixed on the On the support base 21 and covering the fence type shield 26 of the fan wheel 24 .

The AC motor 22 has a rotating shaft 221 for outputting power, and the inner cover 23 has a cover body 231 fixed on the support base 21 and covering the AC motor 22, and a cover body 231 is arranged through the cover body 231. There is a through hole 232 on the top and for the rotating shaft 221 of the AC motor 22 to pass through, and a flange 233 (annular shape in this embodiment) that is arranged on the outside of the cover body 231 and is located around the through hole 232, and the Each detailed component of the inner cover 23 (cover body 231+flange 233 ) is integrally formed by plastic material.

The fan wheel 24 has a hollow hub 241 fixed on the rotating shaft 221 and surrounding the outer side of the inner cover 23, and several fan blades 242 extending outward from the outer peripheral surface of the hub 241 at intervals. 25 then has a set of induction magnet ring 251 fixed on the flange 233 of the inner cover 23, a circuit board 252 fixed on the inner peripheral surface of the hub 241, and an electrical connection arranged on the circuit board 252 And the induction coil 253 located outside the induction magnet ring 251 .

In addition, the shield 26 covers the hub 241 and the fan blades 242 of the fan wheel 24 together, so as to prevent the user from accidentally touching the hub 241 and the fan blades 242 to cause dangerous injuries.

When the AC motor 22 is energized and operated, its rotating shaft 221 will drive the hub 241, the fan blade 242, the circuit board 252, and the induction coil 253 to rotate accordingly. Air flow, and the shield 26 is fence-like, so the air can flow out smoothly and be blown into the external environment, thereby achieving effects such as convection, ventilation, and heat dissipation.

At this time, the induction magnet ring 251 fixed on the flange 233 of the inner cover 23 will generate magnetic interaction with the continuously rotating induction coil 253, so that the induction coil 253 will generate an induced electromotive force and supply current. Various electrical equipment (not shown) to the outside world, such as bulbs proposed in the prior art, electric mosquito coils, ultraviolet germicidal lamps, electrified fragrances, etc., so that the electric fan 2 can be used in addition to functions such as convection, ventilation, and heat dissipation. In addition, it can also produce additional functions such as lighting, mosquito repellent, sterilization, and fragrance.

By means of the above design, the first preferred embodiment of the electric fan 2 with self-generating function of the utility model can achieve the following effects:

(1) There are many additional functions without increasing electricity consumption and electricity costs:

By virtue of the design of the inner cover 23 and the induction unit 25, the electric fan 2 can produce self-generated power when it is powered on, and supply it to other electrical equipment to generate additional functions, but still does not consume more energy. Electricity consumption and increased electricity costs.

(2) The self-generating design of the utility model is not easy to generate additional overall manufacturing costs:

The induction magnet ring 251, the circuit board 252, and the induction coil 253 of the induction unit 25 are only general simple and low-cost circuit components. Compared with the complex circuit design or high-cost power supply box structure used in the prior art, The present invention is obviously less prone to many additional overall manufacturing costs.

(3) The power generation state is relatively stable:

In the utility model, as long as the AC motor 22 continues to be energized and operated, the induction unit 25 can always generate electric energy, and the power generation state is relatively stable, and it is not easy to cause various external electrical equipments to fail due to the small storage capacity of the battery in the prior art. The phenomenon that the electricity cannot work normally.

3 and 4, the second preferred embodiment of the electric fan 2 with self-generating function of the present invention is roughly similar to the aforementioned first preferred embodiment, except that the inner cover 23 has several corresponding The ventilation holes 234 formed on the cover 231 at intervals for heat dissipation, the flange 233 of the inner cover 23 has two protruding walls 235 symmetrically surrounding the through hole 232 and spaced apart, the induction unit 25 The induction magnet ring 251 is sheathed and fixed on the two protruding walls 235, and the material of the two protruding walls 235 is the same as other components of the inner cover 23, which are all plastic materials.

Therefore, except that most of the structural design of this embodiment is the same as that of the aforementioned first preferred embodiment, so that it is not easy to generate many additional overall manufacturing costs and electricity costs, and the power generation state is relatively stable, etc., in addition Therefore, heat is not easy to accumulate in the cover body 231 and can be effectively removed through the vent holes 234 .

Moreover, the two protruding walls 235 that cooperate with the flange 233 are designed to be spaced apart and have the advantage of greater elastic deformation of the plastic, so the inner diameter of the induction magnet ring 251 can be slightly smaller than the two protruding walls 235 in design. The formed outer diameter causes the two protruding walls 235 to continue to receive the inward pressing pressure exerted by the induction magnet ring 251, in response to generate elastic deformation and push outward, thereby enabling the induction magnet ring 251 to be stable. It is not easy to break away from the two protruding walls 235, so that the tight fit positioning effect that the entire wall surfaces are in contact is produced.

Referring to Fig. 5, the third preferred embodiment of the electric fan 2 with self-generating function of the present invention is roughly similar to the aforementioned second preferred embodiment, except that each protruding wall 235 has a part surrounding it The surrounding portion 236 of the through hole 232 and a plurality of ribs 237 are spaced apart on the peripheral surface of the surrounding portion 236 , and the induction magnet ring 251 is sheathed and fixed on the ribs 237 of the two protruding walls 235 .

Therefore, this embodiment is the same as the aforementioned second preferred embodiment except for most of its structural design, so that many additional overall manufacturing costs and electricity costs are not easily generated, and the power generation state is relatively stable, and heat can be effectively removed. In addition to the advantages of tight fit and positioning between the induction magnet ring 251 and the two protruding walls 235, the overall material of the two protruding walls 235 can be reduced because the ribs 237 are designed to be groove-shaped and hollow. The amount used, and because of the small amount of material used, it can produce the effect of light weight and low material cost.

To sum up, the electric fan 2 with self-generating function of the present invention mainly relies on the design of the inner cover 23 and the induction unit 25, so that the electric fan 2 can continue to generate the effect of self-generating when it is powered on, and It will not consume more electricity and increase the cost of electricity. In addition, the state of power generation is relatively stable. The circuit components used also have the advantages of simple design and low cost. Furthermore, two kinds of flanges are revealed in Figures 4 and 5. 233 shape, the heat generated by the utility model can be effectively eliminated, the induction magnet ring 251 and the two protruding walls 235 are closely matched and positioned, and the inner cover 23 has the advantages of light weight and low material cost. So really can reach the purpose of the utility model.

Claims (7)

1. electric fan with spontaneous electrical function, comprise: a supporting base, an alternating current motor, and impeller, this supporting base has a containing space, this alternating current motor is arranged in this containing space and has a running shaft that is used for outputting power, and this impeller has a hollow shape wheel hub that is fixedly arranged on this running shaft, and several pieces are by this outward extending flabellum in wheel hub outer circumferential face interval; It is characterized in that: this electric fan also has an inner cover and an inducting cell, this inner cover is fixedly arranged on this supporting base and supplies the running shaft of this alternating current motor to stretch through, and this wheel hub is surrounded on this inner cover outside, and this inducting cell has one and is fixedly arranged on the inductive magnetic ring on this inner cover, a circuit board that is fixedly arranged on this wheel hub inner peripheral surface, and electrical connection is arranged at the inductor coil on this circuit board.

2. the electric fan that has spontaneous electrical function according to claim 1, it is characterized in that: the perforation that this inner cover has that a cover body that is fixedly arranged on this supporting base and covers in this alternating current motor, perforation are arranged on this cover body and stretched through for the running shaft of this alternating current motor, and one be arranged at this cover body outside and be positioned at this perforation flange on every side, and the inductive magnetic ring of this inducting cell is then sheathed to be fixed on the flange of this inner cover.

3. as having the electric fan of spontaneous electrical function as described in the claim 2, it is characterized in that: the flange of this inner cover has two and is surrounded on around this perforation symmetrically and outstanding wall separately, and the inductive magnetic ring of this inducting cell is then sheathed to be fixed on this two outstanding wall.

4. as having the electric fan of spontaneous electrical function as described in the claim 3, it is characterized in that: the outstanding wall of each of this flange have a local linking in this perforation around portion, and several are arranged at intervals at this around the rib portion on portion's outer circumferential face, and the inductive magnetic ring of this inducting cell is then sheathed to be fixed in the described rib portion of this two outstanding wall.

5. as having the electric fan of spontaneous electrical function as described in the claim 2,3 or 4, it is characterized in that: the material of this inner cover is a plastic cement.

6. as having the electric fan of spontaneous electrical function as described in the claim 5, it is characterized in that: this inner cover also has several separately and breakthrough form is formed on this cover body the vent for heat radiation.

7. as having the electric fan of spontaneous electrical function as described in the claim 6, it is characterized in that: this electric fan also comprises a fence type guard shield, is fixedly arranged on this supporting base and covers in the wheel hub and the flabellum of this impeller, for air current flow.

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