CN212850336U - Electricity-saving device for electric fan - Google Patents
Electricity-saving device for electric fan Download PDFInfo
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- CN212850336U CN212850336U CN202020082521.7U CN202020082521U CN212850336U CN 212850336 U CN212850336 U CN 212850336U CN 202020082521 U CN202020082521 U CN 202020082521U CN 212850336 U CN212850336 U CN 212850336U
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Abstract
The utility model discloses an electric fan power saving device adopts capacitance compensation's mode, adds a compensation circuit, including one or more electric capacity, overcome the defect that exists in the traditional fan production technology, play the effect of energy-conserving economize on electricity. In the traditional single-phase or three-phase electric fan, except that an auxiliary starting coil of the single-phase electric fan is connected in series with a small capacitor (such as 1.2 muF), a main coil is a pure inductance circuit. Depending on the characteristics of the inductor, there is a problem of current lag, which results in a severely low power factor Q. Therefore, the electric fan wastes electricity. At present, in order to pass the energy index test, some manufacturers increase the capacitance of the auxiliary starting to 2 muF, so that the power factor Q is improved, but the power consumption is close (highest level) no matter the starting is in a low level or a high level, the power factor is improved apparently, and the power is still wasted when the high level operates normally but the power is not reduced when the low speed operates.
Description
Technical Field
The utility model relates to an electric fan power saving device improves power, and the using electricity wisely relates to energy-concerving and environment-protective and energy field.
Background art:
in a traditional global single-phase or three-phase electric fan, except that an auxiliary starting coil of the single-phase electric fan is connected in series with a small capacitor (such as 1.2 muF), a main coil is a pure inductance circuit. Depending on the characteristics of the inductor, there is a problem of current lag, which results in a severely low power factor Q. Therefore, the electric fan wastes electricity. At present, in order to pass an energy index test, a certain manufacturer increases the capacitance of auxiliary starting to 2 muF, so that the power factor Q is improved, but the power consumption is close (highest level) no matter the power is started in a low level or a high level, the power factor is improved apparently, and the power is still wasted when the power is not reduced during the speed reduction operation in fact when the power is normally operated in the high level. To improve power factor and save power, a compensation circuit comprising one or more capacitors is required.
The addition of the capacitor and other parts for compensation means that the cost is increased, the circuit becomes complicated, and most manufacturers cannot do the compensation.
Based on above problem, the utility model provides an adopt electric capacity compensation's mode, add a compensation circuit, including one or more electric capacity, overcome the defect that exists in the traditional fan production technology, play the effect of energy-conserving economize on electricity.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical scheme as follows that above-mentioned technical problem took:
the power-saving device for electric fan includes one or several capacitors, and the two ends of every main coil section of motor are respectively parallelly-connected and welded with a small capacitor, then connected with power supply, and according to different types of electric fan, it adopts different devices.
Preferably, in a common desk type or floor type electric fan using single-phase alternating current, a capacitor is connected in parallel to each end of the main coil, and then connected to a power supply. Preferably, a power factor automatic compensator can be added to the common table type or floor type electric fan.
Preferably, in a ceiling-mounted or stand-alone electric fan, a capacitor is connected in parallel to each section of the main coil or to the regulating inductor, and then connected to the power supply. If the speed is adjusted in a capacitance mode, the compensation capacitance does not need to be increased.
Preferably, on a common table type or floor type electric fan, a linked switch is added, each gear of the linked switch is connected with a capacitor, and then the capacitors are connected to the auxiliary starting coil, and the capacities of the capacitors can be the same or different.
Preferably, in a three-phase or multi-phase electric fan, a capacitor is connected in parallel between each group of coils and a zero line, namely, a star connection method.
Preferably, in the three-phase or multi-phase electric fan, a capacitor is connected in parallel between each group of phase coils, namely, a delta connection method.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
FIG. 1 is a schematic view of a power saving device installed on a common desk or floor type electric fan;
FIG. 2 is a schematic view of the present invention, wherein an automatic adjusting device is installed on a common desk-top or floor-standing electric fan;
FIG. 3 is a schematic view of the ceiling fan with a power saving device;
FIG. 4 is a schematic diagram of the present invention, in which a capacitor and a power saving device for switching on and off are additionally installed on a common desk type or floor type electric fan;
FIG. 5 is a schematic view of the three-phase electric fan of the present invention with a star-shaped power saving device;
FIG. 6 is a schematic view of the three-phase electric fan of the present invention with a triangular power saving device;
in the figure, 1 is a capacitor, 2 is a switch, 3 is an automatic compensator, 4 is a capacitor, 5 is a capacitor, 6 is a switch, 7 is a capacitor, and 8 is a capacitor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical solution of the present invention, the following description is made by using specific examples.
As shown in fig. 2, in particular, the power saving device of the electric fan of the present invention is composed of one or more capacitors, a switch, an automatic power compensator, etc.
On the common desk or floor electric fan using single-phase alternating current, a capacitor is connected in parallel to each group of coils, which is equivalent to a capacitor is connected in parallel between each contact of the original gear switch of the electric fan and the other end of the coil connected with the contact, and then connected to a power supply, as shown in fig. 3, an automatic power factor compensator can also be added.
Referring to fig. 4, another method is to change the starting capacitor, add a switch and a plurality of capacitors, the switch is linked with the original main switch, one end of the capacitor is connected with the switch, the other end is connected with the auxiliary starting coil, which is equivalent to that the gears with different speeds are configured with capacitors with different capacitance values, so that the starting capacitor is fixed and adjustable, and the power factor can be improved, and the function of saving power can be realized.
In the ceiling type or independent type electric fan, as shown in fig. 3, a capacitor is connected in parallel to the main coil and the regulating inductor respectively, and if the speed is regulated in a capacitance mode, a compensation capacitor is not required to be added.
5-6, in the three-phase or multi-phase electric fan, a star-shaped or delta-shaped connection method is adopted, a capacitor is connected in parallel between each group of coils, and then the capacitor is connected to a power supply.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An electric fan power-saving device is characterized in that: the two ends of each main coil of the motor are respectively welded with a small capacitor in parallel and then connected to a power supply.
2. The power saving device for an electric fan according to claim 1, wherein: on a common desk type or floor type electric fan, a capacitor (1) is connected in parallel at two ends of each section of a main coil respectively, and then the capacitors are connected to a power supply.
3. The power saving device for an electric fan according to claim 1, wherein: a power factor compensator (3) is added on a common desk type or floor type electric fan.
4. The power saving device for an electric fan according to claim 1, wherein: on the ceiling type or independent electric fan, a capacitor (4) is respectively connected in parallel with each section of the main coil or the regulating inductor, and then the main coil and the regulating inductor are connected to a power supply.
5. The power saving device for an electric fan according to claim 1, wherein: a linkage switch (6) is additionally arranged on a common table type or floor type electric fan, each gear of the switch is connected with a capacitor, and then the capacitors are connected to an auxiliary starting coil, and the capacities of the capacitors can be the same or different.
6. The power saving device for an electric fan according to claim 1, wherein: on the three-phase or multi-phase electric fan, a capacitor (7) is connected in parallel between each group of coils and a zero line, namely a star connection method.
7. The power saving device for an electric fan according to claim 1, wherein: on the three-phase or multi-phase electric fan, a capacitor (8) is connected in parallel between each group of phase coils, namely a delta connection method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020082521.7U CN212850336U (en) | 2020-01-15 | 2020-01-15 | Electricity-saving device for electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020082521.7U CN212850336U (en) | 2020-01-15 | 2020-01-15 | Electricity-saving device for electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212850336U true CN212850336U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020082521.7U Active CN212850336U (en) | 2020-01-15 | 2020-01-15 | Electricity-saving device for electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212850336U (en) |
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2020
- 2020-01-15 CN CN202020082521.7U patent/CN212850336U/en active Active
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