CN204242722U - PFC inductance and convertible frequency air-conditioner - Google Patents
PFC inductance and convertible frequency air-conditioner Download PDFInfo
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- CN204242722U CN204242722U CN201420684651.2U CN201420684651U CN204242722U CN 204242722 U CN204242722 U CN 204242722U CN 201420684651 U CN201420684651 U CN 201420684651U CN 204242722 U CN204242722 U CN 204242722U
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- magnetic core
- dividing plate
- pfc inductance
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Abstract
The utility model provides a kind of PFC inductance and convertible frequency air-conditioner.PFC inductance comprises base, magnetic core, dividing plate and coil, wherein, the edge of magnetic core is fixedly connected with base, coil is around on magnetic core, dividing plate is arranged on magnetic core diametrically along the direction perpendicular to base, and dividing plate is fixedly connected with magnetic core, the both sides of dividing plate are respectively arranged with a fixed part, and two ends of coil are fixed on base through after two fixed parts correspondingly.Owing to have employed said structure, the impedance of impedance ratio of the present utility model two common PFC inductance of the prior art is high by more than 20%, simultaneously the utility model also by the resonant frequency point on circuit by original about 270KHz, be promoted to about 320KHz, with the noise signal that this suppresses circuit to produce, thus application filter effect is promoted.
Description
Technical field
The utility model relates to inductance field, particularly a kind of PFC inductance and convertible frequency air-conditioner.
Background technology
In convertible frequency air-conditioner field, its PFC (Power Factor Correction, power factor correction) electric induction is with comparatively extensive, and the power factor of normally used active PFC inducer can reach more than 98% usually, but its cost is higher.A usual air-conditioning frequency changer circuit needs two active PFC inducers, and the iron ore material simultaneously has more (two PFC iron ore consumptions are 103g); In addition, show with active PFC in use to active pfc circuit, lower to the impedance applying frequency of himself, at the frequency operation of below 250KHZ, good filter effect can only do not had.
Utility model content
The utility model provides that a kind of structure is simple, cost is low, impedance is high, the PFC inductance of good wave filtering effect and convertible frequency air-conditioner.
For solving the problem, as an aspect of the present utility model, provide a kind of PFC inductance, comprise base, magnetic core, dividing plate and coil, wherein, the edge of magnetic core is fixedly connected with base, coil is around on magnetic core, and dividing plate is arranged on magnetic core diametrically along the direction perpendicular to base, and dividing plate is fixedly connected with magnetic core, the both sides of dividing plate are respectively arranged with a fixed part, and two ends of coil are fixed on base through after two fixed parts correspondingly.
Further, magnetic core adopts MnZn material to make, and the external diameter of magnetic core is 40mm.
Further, dividing plate comprises the first support and the second support, and the first support is connected with the second support vertical in cross, and the two ends of the first support are connected with magnetic core respectively, and fixed part is arranged on the two ends of the second support.
Further, dividing plate also comprises two retainer rings, and the two ends of the first support are fixedly connected with magnetic core respectively by a retainer ring.
Further, magnetic core is circular.
The utility model additionally provides a kind of convertible frequency air-conditioner, comprises above-mentioned PFC inductance.
Owing to have employed said structure, the impedance of impedance ratio of the present utility model two common PFC inductance of the prior art is high by more than 20%, simultaneously the utility model also by the resonant frequency point on circuit by original about 270KHz, be promoted to about 320KHz, with the noise signal that this suppresses circuit to produce, thus application filter effect is promoted.
Accompanying drawing explanation
Fig. 1 schematically shows structural representation of the present utility model;
Fig. 2 schematically shows circuit theory diagrams of the present utility model.
Reference numeral in figure: 1, base; 2, magnetic core; 3, dividing plate; 4, coil; 5, end; 6, fixed part; 7, the first support; 8, the second support; 9, retainer ring.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Please refer to Fig. 1 and Fig. 2, the utility model provides a kind of PFC inductance, the particularly energy-saving PFC inductance of a kind of high impedance, comprise base 1, magnetic core 2, dividing plate 3 and coil 4, wherein, the edge of magnetic core 2 is fixedly connected with base 1, coil 4 is around on magnetic core 2, dividing plate 3 is arranged on magnetic core diametrically along the direction perpendicular to base 1, and dividing plate 3 is fixedly connected with magnetic core 2, the both sides of dividing plate 3 are respectively arranged with a fixed part 6, and two ends 5 of coil 4 are fixed on base 1 through after two fixed parts 6 correspondingly.
Dividing plate of the prior art is the fixed part 6 not used for support coil.The utility model arranges two fixed parts 6 being used for line respectively on the both sides of dividing plate 3, therefore, when product coiling, two winding buttock lines (end 5) through two fixed parts 6, thus make the resonance frequency of the utility model on circuit get a promotion.
Find through test of many times: when inductance of the prior art does not have fixed part 6, the resonance frequency on circuit is about 270KHz, only than resonance frequency height about the 20KHz of two common PFC inductance of the prior art.But, when adopt in the utility model there is the inductance of fixed part time, and after the buttock line of two of this inductance windings is hung on this fixed part, the distributed capacitance between its winding can be made less than of the prior art, thus, improve impedance.Wherein, impedance contrast is as follows:
Table 1: the impedance test results of two common PFC inductance of the prior art
Table 2: the resistance test result of the PFC inductance in the utility model
Contrasted can be drawn by above resistance value, the impedance of impedance ratio two common PFC inductance of the prior art of the PFC inductance in a utility model is high by more than 20%, simultaneously the utility model also by the resonant frequency point on circuit by original about 270KHz, be promoted to about 320KHz, with the noise signal that this suppresses circuit to produce, thus application filter effect is promoted.
The utility model compared with prior art, cost performance has following advantage:
1) in cost: during application in its frequency changer circuit, two PFC inductance of the prior art can be replaced by the PFC inductance of in the utility model, therefore, reduce cost, its iron ore used is down to present 61.9g by the 103g of (2 PFC inductance) of the prior art, saves iron ore 41.9g/pcs than before; Be 800,000/month for the moon production capacity that my company is current, can save iron ore year is 32.88 tons.
2) characteristically: because magnet ring sintering process of the present utility model changes and the change of size, dividing plate is adjusted simultaneously and (add fixed part, the buttock line of coil is hung on fixed part), thus, make resonance frequency of the present utility model by of the prior art≤250KHz, be promoted to 320KHz, its circuit is when operating frequency is 500KHz, its impedance can by of the prior art≤20K Ω, rise to present 40K Ω, double than the application impedance of PFC inductance of the prior art, thus reach very good filter effect.
Preferably, magnetic core 2 adopts MnZn material to make, and the external diameter of described magnetic core 2 is 40mm.In the present embodiment, magnetic core 2 selects conventional ferrocart core (MnZn) as magnetic core, compared with PFC inductance of the prior art, is 38mm, changes 40mm into by original external diameter, therefore, there is sizable difference on magnetic core sintering process and between prior art.
Preferably, dividing plate 3 comprises the first support 7 and the second support 8, first support 7 is connected in cross with the second support 8 is vertical, and the two ends of the first support 7 are connected with magnetic core 2 respectively, and fixed part 6 is arranged on the two ends of the second support 8.
Preferably, the two ends that dividing plate 3 also comprises two retainer rings 9, first support 7 are fixedly connected with magnetic core 2 respectively by a retainer ring 9.Preferably, magnetic core 2 is in circular.
The utility model additionally provides a kind of convertible frequency air-conditioner, comprises above-mentioned PFC inductance.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. a PFC inductance, it is characterized in that, comprise base (1), magnetic core (2), dividing plate (3) and coil (4), wherein, the edge of described magnetic core (2) is fixedly connected with described base (1), described coil (4) is around on described magnetic core (2), described dividing plate (3) is arranged on described magnetic core diametrically along the direction perpendicular to described base (1), and described dividing plate (3) is fixedly connected with described magnetic core (2), the both sides of described dividing plate (3) are respectively arranged with a fixed part (6), two ends (5) of described coil (4) are fixed on described base (1) through after described two fixed parts (6) correspondingly.
2. PFC inductance according to claim 1, is characterized in that, described magnetic core (2) adopts MnZn material to make, and the external diameter of described magnetic core (2) is 40mm.
3. PFC inductance according to claim 1, it is characterized in that, described dividing plate (3) comprises the first support (7) and the second support (8), described first support (7) is connected in cross with described second support (8) is vertical, the two ends of described first support (7) are connected with described magnetic core (2) respectively, and described fixed part (6) is arranged on the two ends of described second support (8).
4. PFC inductance according to claim 3, it is characterized in that, described dividing plate (3) also comprises two retainer rings (9), and the two ends of described first support (7) are fixedly connected with described magnetic core (2) respectively by a described retainer ring (9).
5. PFC inductance according to claim 1, is characterized in that, described magnetic core (2) is in circular.
6. a convertible frequency air-conditioner, is characterized in that, comprises the PFC inductance according to any one of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420684651.2U CN204242722U (en) | 2014-11-17 | 2014-11-17 | PFC inductance and convertible frequency air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420684651.2U CN204242722U (en) | 2014-11-17 | 2014-11-17 | PFC inductance and convertible frequency air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204242722U true CN204242722U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420684651.2U Active CN204242722U (en) | 2014-11-17 | 2014-11-17 | PFC inductance and convertible frequency air-conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485201A (en) * | 2014-11-17 | 2015-04-01 | 深圳市雅玛西电子有限公司 | PFC inductor and variable-frequency air conditioner |
| CN107045916A (en) * | 2017-06-01 | 2017-08-15 | 广东美的制冷设备有限公司 | Choke and household electrical appliance |
-
2014
- 2014-11-17 CN CN201420684651.2U patent/CN204242722U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485201A (en) * | 2014-11-17 | 2015-04-01 | 深圳市雅玛西电子有限公司 | PFC inductor and variable-frequency air conditioner |
| CN107045916A (en) * | 2017-06-01 | 2017-08-15 | 广东美的制冷设备有限公司 | Choke and household electrical appliance |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |