CN203871944U - Motor with additional inductance coil - Google Patents
Motor with additional inductance coil Download PDFInfo
- Publication number
- CN203871944U CN203871944U CN201420127678.1U CN201420127678U CN203871944U CN 203871944 U CN203871944 U CN 203871944U CN 201420127678 U CN201420127678 U CN 201420127678U CN 203871944 U CN203871944 U CN 203871944U
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- Prior art keywords
- motor
- additional inductor
- additional
- coil
- inductor coil
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- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 44
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004134 energy conservation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Windings For Motors And Generators (AREA)
Abstract
A motor with an additional inductance coil comprises a motor primary coil, a motor primary stator silicon steel sheet group, the additional inductance coil, and an additional silicon steel sheet group; the motor primary coil refers to three motor primary coil groups of a three-phase motor stator; peripheries of the three motor primary coil groups are respectively connected in series with the additional inductance coil; the additional silicon steel sheet group and the motor primary stator silicon steel sheet group are combined to enclose a magnetic loop of the additional inductance coil; the additional silicon steel sheet group of the additional inductance coil is combined with the motor primary stator silicon steel sheet group so as to form the common magnetic loop of the additional inductance coil and the motor primary coil. The advantages are that the additional inductance coil is connected to increase motor impedance and reduce motor current, thus reducing motor output power, thereby saving energy; the motor with the additional inductance coil is simple and reliable, low in cost, has excellent energy saving effect, can save energy by more than 30%, and can effectively change the phenomenon of dragging a small load by a large power motor.
Description
Technical field
The utility model relates to energy saving motor technical field, particularly relates to a kind of energy-conservation motor with additional inductor coil.
Background technology
China's blower fan, the pump class whole nation have 3,700 ten thousand, and its power consumption accounts for 31% of national generating capacity, accounts for 40% of industrial electric weight, in the power consumption of operation, have very large energy-saving potential.
The principle of when application of electric motors, rated power being selected is: selected rated power wants to meet manufacturing machine also makes motor be fully used at the links dragging (startup, speed governing, braking etc.) to the requirement of power and torque on this basis.The method that rated power is selected is: the large and small Variation Features of load while working according to manufacturing machine (torque, power, electric current), and the rated power of preliminary election motor, then according to selected motor rated power verification overload capacity and startup ability.
Country has made following regulation to 3 operation areas of threephase asynchronous: load factor is economical operation district between 70%～100%; Load factor is general Operational Zone between 40%～70%; Load factor is being non-economy Operational Zone below 40%.If motor capacity is selected too much, although can assurance equipment normally move, not only increased investment, and its efficiency and power factor also all very low, cause the waste of electric power.Therefore consider the needs that can meet equipment operation, can make again it raise the efficiency as much as possible, it is 60%～100% comparatively desirable that general load factor remains on.
From the load factor of motor, just can find out, energy saving motor aspect is to have very large potentiality.
The normal mode adopting of energy saving motor has at present: use voltage-regulating speed-regulating device, change pole motor, electromagnetic coupled speed regulator, RHVC etc.In addition, when asynchronous motor during fractional load, reduce its external supply voltage, can realize energy-conservation; Leading-out terminal appropriate electric capacity in parallel at asynchronous motor carries out reactive power compensation, can improve power factor, reduces reactive loss, can saves energy.
It is remarkable that the modes such as use electromagnetic coupled speed regulator, frequency converter are carried out energy-saving effect, but cost is high, safeguards and controls complicated; Other various power save modes, have certain effect, but energy-saving effect generally lower than 10%, effect is undesirable.
Utility model content
The technical problems to be solved in the utility model is, a kind of energy saving ac motor (containing asynchronous and synchronous) is provided, by the method for the additional inductor coil of connecting on alternating current motor primary coil, initiatively change the impedance of motor, control motor by electric current, thereby realize, control the energy-conservation motor with additional inductor coil of alternating current motor.
The technical scheme adopting is:
With a motor for additional inductor coil, comprise motor primary coil, the former stator silicon steel plate group of motor, additional inductor coil, additional silicon steel sheet group.Described motor primary coil is three groups of motor primary coil of three-phase electric machine stator, three groups of motor primary coil peripheries additional inductor coil of connecting respectively, and adopt additional silicon steel sheet group and the former stator silicon steel plate group of motor jointly the magnetic circuit of additional inductor coil to be carried out to closure.The additional silicon steel sheet group of described additional inductor coil and the former stator silicon steel plate group of motor are combined as a whole, and become additional inductor coil and motor primary coil and share magnetic circuit.
The number of turn, size, wire diameter that three above-mentioned additional inductor coils form are all consistent.
Above-mentioned additional inductor coil can be provided with a plurality of centre taps, a plurality of centre taps are controlled the path of electric current by variable connector, make electric current directly enter motor primary coil without additional inductor coil, or enter motor primary coil after certain tap by additional inductor coil.
Above-mentioned additional inductor coil can be provided with a plurality of centre taps, by change the access of additional inductor coil the number of turn number, control the size of current that motor passes through, realize Energy Saving Control.
Above-mentioned additional inductor coil is connected with motor primary coil, in the line access position can be selected in motor primary coil two ends all can, effect is identical.
Three above-mentioned motor primary coil should be identical in the number of turn of the additional inductor coil of synchronization access, and arbitrary moment can only be connected one group of tap.
The utility model has the advantage of:
1,, by access additional inductor coil, the impedance of increasing motor, reduces the electric current of motor, thereby reduces the power output of motor, realizes energy-conservation.
2, simple and reliable for structure, cost is low, and energy-saving effect is remarkable simultaneously, can reach more than 30%.
3, effectively change motor low load with strong power phenomenon.
Accompanying drawing explanation
Fig. 1 is the conspectus of motor of the present utility model.
Fig. 2 is that the line switching of motor of the present utility model is controlled schematic diagram.
Fig. 3 is the former stator silicon steel plate group of motor of the present utility model and additional silicon steel sheet group combining structure schematic diagram.
Fig. 4 is that motor of the present utility model is installed additional inductor coil schematic diagram.
Fig. 5 is one of the decomposed form of the former stator silicon steel plate group of motor of the present utility model and additional silicon steel sheet group schematic diagram.
Fig. 6 is two schematic diagrames of the decomposed form of the former stator silicon steel plate group of motor of the present utility model and additional silicon steel sheet group.
Fig. 7 is three schematic diagrames of the decomposed form of the former stator silicon steel plate group of motor of the present utility model and additional silicon steel sheet group.
Wherein: 1 is motor primary coil, 2 is additional inductor coil, and 3 is the former stator silicon steel plate group of motor, and 4 is additional silicon steel sheet group, 5,6, the 7 three-phase inlet wires that are motor, and 8-37 is each tap control switch of motor additional inductor coil.
Embodiment
With a motor for additional inductor coil, comprise motor primary coil 1, the former stator silicon steel plate group 3 of motor, additional inductor coil 2, additional silicon steel sheet group 4.Described motor primary coil 1 is three groups of alternating current motor primary coil of three-phase electric machine stator, three groups of motor primary coil 1 peripheries additional inductor coil 2 of connecting respectively, and adopt additional silicon steel sheet group 4 jointly the magnetic circuit of additional inductor coil to be carried out to closure with the former stator silicon steel plate group 3 of motor.Additional silicon steel sheet group 4 and the former stator silicon steel plate group 3 of motor of described additional inductor coil are combined as a whole, and become additional inductor coil and motor primary coil and share magnetic circuit.Described three groups of alternating current motor primary coil 1 have the identical number of turn, three numbers of turn that additional inductor coil 2 forms, size, wire diameter is all identical, three additional inductor coils 2 have identical tap number, and the coil turn that three additional inductor coil 2 each corresponding taps access is identical, for example (see Fig. 1, Fig. 2) tap 15, tap 25, tap 35 is one group of corresponding tap on three additional inductor coils, from the UVW of three-phase alternating current, it is the inlet wire 5 Fig. 1, inlet wire 6, inlet wire 7 three-phase accesses, W phase current enters W phase primary coil from tap 15, through coil turn, be A, V phase current enters V phase primary coil from tap 25, through coil turn, be B, U phase current enters U item primary coil from tap 35, through coil turn, be C, A equals B equals C.
As shown in Figure 2, Synchronization Control is wanted in each corresponding tap of three additional inductor coils 2 described in the utility model, as 35,25,15 1 groups of taps, 30,20,10 1 groups of taps, 29,19,8 one groups of taps, 28,18,8 one groups of taps, on-off mode can be used contactor or controllable silicon control elements, and it is controlled and will guarantee that arbitrary moment can only connect one group of tap.
As shown in Figure 1, when tap 28,18,8 is connected, electric current directly enters primary coil 1 without additional inductor coil 2.
As shown in Fig. 3, the general type that motor stator silicon steel sheet group 3 of the present utility model and additional silicon steel sheet group are combined.Additional inductor coil 2 will be arranged on the inside, winding hole between motor stator silicon steel sheet group 3 and additional silicon steel sheet group 4, and the effect after installation is as Fig. 4.
If the installation that motor stator silicon steel sheet group 3 can cause additional inductor coil together with just when additional silicon steel sheet group 4 is manufactured is difficulty very, therefore be necessary that a motor stator silicon steel sheet group 3 and additional silicon steel sheet group 4 manufacture respectively, install the rear recombinant of additional inductor coil 2 together.Fig. 5, Fig. 6, Fig. 7 are several forms that motor stator silicon steel sheet group 3 and additional silicon steel sheet group 4 split while manufacturing respectively.
Additional inductor coil 2 described in the utility model can have a plurality of centre taps, by variable connector, control the path of electric current: without additional inductor coil 2, directly enter motor primary coil 1, or enter motor primary coil 1 after certain tap by additional inductor coil 2.
When electric current directly enters motor primary coil 1 without additional inductor coil 2, motor is in conventional operation state.When certain tap of electric current process additional inductor coil 2 enters motor primary coil 1, motor stator inductance increases, and impedance increases, the current reduction that motor passes through.The number of turn of additional inductor coil 2 accesses is more, the larger increase of motor stator inductance, and the electric current that motor passes through is lower, and power output is just less.
Claims (6)
1. the motor with additional inductor coil, comprise motor primary coil (1), the former stator silicon steel plate group of motor (3), additional inductor coil (2), additional silicon steel sheet group (4), it is characterized in that described motor primary coil (1) is three groups of motor primary coil of three-phase electric machine stator, three groups of motor primary coil (1) periphery additional inductor coil (2) of connecting respectively, and adopt additional silicon steel sheet group (4) jointly the magnetic circuit of additional inductor coil to be carried out to closure with the former stator silicon steel plate group of motor (3), the additional silicon steel sheet group (4) of described additional inductor coil is combined as a whole with the former stator silicon steel plate group of motor (3), become additional inductor coil and motor primary coil and share magnetic circuit.
2. a kind of motor with additional inductor coil according to claim 1, is characterized in that the number of turn, size, wire diameter that described three additional inductor coils (2) form are all consistent.
3. a kind of motor with additional inductor coil according to claim 1, it is characterized in that described additional inductor coil (2) can be provided with a plurality of centre taps, a plurality of centre taps are controlled the path of electric current by variable connector, make electric current directly enter motor primary coil without additional inductor coil, or enter motor primary coil after certain tap by additional inductor coil.
4. a kind of motor with additional inductor coil according to claim 1, it is characterized in that described additional inductor coil (2) can be provided with a plurality of centre taps, by change the access of additional inductor coil the number of turn number, control the size of current that motor passes through, realize Energy Saving Control.
5. a kind of motor with additional inductor coil according to claim 1, is characterized in that described additional inductor coil (2) connects with motor primary coil (1), and the position of accessing in the line can be selected in motor primary coil (1) two ends and all can.
6. a kind of motor with additional inductor coil according to claim 1, the number of turn that it is characterized in that the additional inductor coil (2) that described three groups of motor primary coil (1) access at synchronization should be identical, and arbitrary moment can only be connected one group of tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127678.1U CN203871944U (en) | 2014-03-21 | 2014-03-21 | Motor with additional inductance coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127678.1U CN203871944U (en) | 2014-03-21 | 2014-03-21 | Motor with additional inductance coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871944U true CN203871944U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420127678.1U Expired - Fee Related CN203871944U (en) | 2014-03-21 | 2014-03-21 | Motor with additional inductance coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887912A (en) * | 2014-03-21 | 2014-06-25 | 沈阳揽月工业设计有限公司 | Motor with additional inductance coils |
-
2014
- 2014-03-21 CN CN201420127678.1U patent/CN203871944U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887912A (en) * | 2014-03-21 | 2014-06-25 | 沈阳揽月工业设计有限公司 | Motor with additional inductance coils |
| CN103887912B (en) * | 2014-03-21 | 2016-12-07 | 沈阳揽月工业设计有限公司 | A kind of motor with additional inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20160321 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |