CN202737793U - Motor frequency sensitive starter - Google Patents
Motor frequency sensitive starter Download PDFInfo
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- CN202737793U CN202737793U CN 201220427342 CN201220427342U CN202737793U CN 202737793 U CN202737793 U CN 202737793U CN 201220427342 CN201220427342 CN 201220427342 CN 201220427342 U CN201220427342 U CN 201220427342U CN 202737793 U CN202737793 U CN 202737793U
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Abstract
The utility model discloses a motor frequency sensitive starter. According to the main technical scheme, a material with low carbon content is used to be processed into a fan-shaped iron core to replace a circular iron core used before; with the fan-shaped iron core, the angle between two windings is reduced, and the leakage flux area is correspondingly reduced; when a motor is running, leakage flux loss is greatly reduced, and the active component of a rotor of the motor is increased; at the same time, a resistance wire is used to replace a glass fiber enameled copper wire to prepare a coil, thus non-ferrous metals are saved, and the resistance value is increased; the volume of the starter is reduced; the weight is reduced; eddy current loss is reduced; electric energy is effectively saved; and according to the type of a load driven by the motor and the voltage condition, when connection is carried out in the starter, star connection and angle connection can be used, thus the starting torque and the power factor of the rotor of the motor can be improved, and the terminal voltage can be stabilized.
Description
Technical field
The utility model relates to a kind of motor and frequently feels starting device, belongs to motor and frequently feels the starter technical field.
Background technology
Starter without brush and ring is since putting on market, because it is to be directly installed on the motor rotor to do synchronous operation with rotor.Saved the frequency sensitive trheostat in copper slip ring, carbon brush, brush box, support, compression spring and the control cubicle of installing on the former rotor, more than 10 quick-wear part such as the time relay, once mounting, the long-term use, reduce maintenance time and number of times, save the spare part expense, improved the device security running rate.
Be 98224515.7 at the application number of Chinese patent literature Granted publication on the 6th October in 1999, name is called the starter that discloses a kind of wound-rotor asynchronous motor in the patent of " wound rotor motor starter without brush and ring ", the characteristics of this starter are to be designed with an axle sleeve and motor rotor to fix and be connected and do synchronous operation.Be fixed with circular forward and backward yoke plate on the axle sleeve, 6 coil windings are installed on the forward and backward yoke plate, fix by 6 interior iron cores and small front apron and to connect into a toroidal integral body, 12 of 6 coil windings lift one's head line and have done to be fixedly connected with in inside, only leave 6 binding posts outside, purpose be with motor rotor on 6 lift one's head line and be used as in parallel.After being connected with rotor, the starter of this structure participates in the rotor synchronous operation, during motor starting, starter can also increase starting torque except the restriction starting current, keep the original performance of motor constant, and can Fraquent start and motor forward/backward rotation all unaffected.But also there is obvious defective in this wound rotor motor starter without brush and ring, at first be because this starter adopts is circular iron core, angle α between adjacent two windings is larger, causes the leakage field area larger, increases dispersion loss (as shown in Figure 1); Secondly, because conventional core material phosphorus content is high, be used for coiling, can cause larger eddy current loss, increase caloric value, security and stability is poor, and electric energy loss is large, and magnetic resistance is little, and power factor is low; Because the coil on the iron core is glass fiber bag flat type copper wire normally, because coil weight is large, the starter volume of same power is large, electric energy loss is large, operating cost is high, if adopt resistance wire to replace copper cash to make winding, can't solve again the key issue of interlayer heatproof insulating material.
Therefore, the type of the prior art feels frequently that starting device exists that dispersion loss is large, operating cost is high, power factor is low and the problem such as security and stability is poor, or undesirable.
Summary of the invention
The technical problem underlying that the utility model need to solve is that the type motor of prior art is felt the large problem of starting device dispersion loss frequently.
It is large that the less important technical problem that the utility model need to solve is that the type motor of prior art is felt the starting device volume weight frequently, and power consumption is high, and operating cost is high, the problem that security and stability and effect are low.
In order to solve the problems of the technologies described above, a kind of motor that the utility model adopts is felt starting device frequently, comprise and the direct-connected axle sleeve of motor rotary shaft, the axle sleeve two ends are fixed with circular front yoke plate and rear yoke plate, before, be fixed with 6 coil windings between the rear yoke plate, coil windings is comprised of coil and iron core, pass the connection that fixes of hole in the middle of the iron core by stay-bolt, wherein, what the iron core of described coil windings adopted is the compressing segmental core of DT4 tube material, the coil of coil windings is wound on the segmental core by specification requirement, and uses without the colligation of latitude band parcel; 6 coil windings are provided with the connection that fixes in inside of 12 terminals, and this device is provided with 6 binding posts and is used for connecting the motor terminal.Be processed into segmental core with the DT4 tube material and substitute original circular iron core, dwindle the angle between the winding, reduce the leakage field area, greatly reduce the dispersion loss of feeling starter frequently.Because DT4 material phosphorus content is low, comes coiling with it, reduce eddy current loss, reduce caloric value, increase magnetic resistance, saves energy reduces temperature rise, increasing motor rotor power factor and starting torque.
Further, described coil windings adopt resistance wire substitute copper cash as coil winding on segmental core.Replace glass fiber bag flat type copper wire on segmental core with resistance wire, the motor of same power, the weight of resistance wire is 1/3rd of weight of copper wire, and the impedance that produces makes the volume-diminished of whole product greater than the impedance that copper cash produces, weight saving, save non-ferrous metal, can also increase impedance, the increasing motor rotor deal of gaining merit, improve power factor, improved the starting performance of motor.
Substitute copper cash with resistance wire and make winding, the problem of most critical is, how to solve heatproof insulating material, and therefore, in the utility model, described coil windings is made layer insulation with the heatproof asbestos board, has so just solved this problem.
In addition, described 6 coil windings are provided with when 12 terminals are inner to be connected and adopt star connection, also can adopt the dihedral connection.The inner two kinds of modes of connection of this device, applied range can reduce the loss of terminal voltage, and electronic function is started in less than the situation of rated voltage 20% smoothly.
Owing to adopted the technical solution of the utility model, the leakage field area that motor of the present utility model is felt starting device frequently significantly reduces, dispersion loss during operation significantly reduces, simultaneously, motor of the present utility model is frequently felt starting device and is also had little, the lightweight advantage of volume, can effectively save electric energy, reduces operating cost, can also reduce caloric value, improve security and stability; Simultaneously, can also increasing motor rotor power factor and starting torque, can improve the effect of starter.The technical solution of the utility model can also be applicable to have widely market prospects in other similar devices, is worthy to be popularized.
Description of drawings
Fig. 1 is circular coil winding layout plan of the prior art;
Fig. 2 is sector (-shaped) coil winding layout plan of the present utility model;
Fig. 3 is that motor is felt the starting device structural representation frequently;
Fig. 4 is Fig. 3 coil winding drawing;
Fig. 5 is coil windings Y-connection schematic diagram;
Fig. 6 is coil windings Angle connection schematic diagram.
Description of reference numerals: 1-axle sleeve, 2-segmental core, 3-hex nut, the 4-stay-bolt, yoke plate behind the 5-, 6-insulating pad, 7-heatproof asbestos board, 8-layer insulation plate, 9-resistance wire, 10-outer layer insulation plate, 11-be without the latitude band, yoke plate before the 12-, the 13-packing ring, the 14-insulated ring, 15-binding post, 16-coil windings.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
See first Fig. 1 and Fig. 2, wherein Fig. 1 is circular coil winding layout plan of the prior art, Fig. 2 is sector (-shaped) coil winding layout plan of the present utility model, from two figure, can see, no matter be prior art, or motor of the present utility model is felt starting device frequently, main structure is at front yoke plate 12, be provided with 6 coil windings 16 between the rear yoke plate 5, but what the coil windings 16 of prior art adopted is circular iron core, and coil windings 16 employings of the present utility model is segmental core 2, from Fig. 1, with can see in the contrast of Fig. 2, because compared to existing technology, angle α between the adjacent iron core of the present utility model is less, space between the adjacent segmental core 2 is tightr, and the space is less, therefore motor of the present utility model frequently feel the leakage field area of starting device can decrease, frequently feel the dispersion loss that starting device is in operation thereby reduced motor, to realize the purpose of this utility model.In addition, coil windings 16 is by carrying out colligation without latitude band 11.
The segmental core 2 that frequency sense starting device of the present utility model adopts is to be processed by the DT4 tube material, because DT4 material phosphorus content is low, come coiling with it, can reduce eddy current loss, reduce caloric value, increase magnetic resistance, saves energy, reduce temperature rise, increasing motor rotor power factor and starting torque.
See Fig. 3, motor of the present utility model is felt starting device frequently, comprise and the direct-connected axle sleeve 1 of motor rotary shaft, the axle sleeve 1 of present embodiment is installed on the rotor of motor, axle sleeve 1 two ends are fixed with circular front yoke plate 12 and rear yoke plate 5, be fixed with 6 coil windings 16 between front yoke plate 12 and the rear yoke plate 5, coil windings 16 is comprised of coil and iron core, pass the connection that fixes of hole in the middle of the iron core by stay-bolt 4, and, be provided with packing ring 13 at stay-bolt 4 and 12 of front yoke plates, and adopt 3 pairs of tensions of hex nut solid at rear yoke plate 5 places.In addition, between coil windings 16 and rear yoke plate 5, be provided with insulating pad 6.
What the iron core of described coil windings 16 adopted is segmental core 2, and segmental core (2) adopts the DT4 tube material compressing.Described coil windings 16 adopt resistance wires 9 substitute copper cash as coil winding on segmental core 2.The coil of coil windings 16 is wound on the segmental core 2 by specification requirement, 6 coil windings 16 are provided with the connection that fixes in inside of 12 terminals, and this device is provided with 6 binding posts 15 and is used for connecting the motor terminal, 6 binding posts 15 are distributed on the front yoke plate 12,6 of motor rotors are lifted one's head line and binding post 15 and are used as in parallelly, also are provided with insulated ring 14 between binding post 15 and the front yoke plate 12.6 binding posts and 6 coil windings are then made star or Angle connection according to motor-driven loading condition, such as Fig. 5, shown in Figure 6 in inside.
See Fig. 3, Fig. 4, coil windings 16 arranges special heatproof asbestos board 7 with segmental core 2 by the surface in segmental core 2 and makes layer insulation, also direct winfing is on segmental core by the specification requirement selection for the diameter of resistance wire 9, and the number of plies of coiling is decided by specification requirement.Also be provided with layer insulation plate 8 between every one deck resistance wire 9 on the coil windings 16 in addition, also be provided with outer layer insulation plate 10 in the outside of coil windings 16 outer resistance wires 9.Layer insulation plate 8 and outer layer insulation plate 10 adopts is the insulation board of the material identical with heatproof asbestos board 7.
Certainly, more than be concrete exemplary applications of the present utility model, the utility model also has other execution mode, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the desired protection range of the utility model.
Claims (5)
1. a motor is felt starting device frequently, comprise and the direct-connected axle sleeve of motor rotary shaft (1), axle sleeve (1) two ends are fixed with circular front yoke plate (12) and rear yoke plate (5), before, rear yoke plate (12,5) be fixed with 6 coil windings (16) between, coil windings (16) is comprised of coil and iron core, pass the connection that fixes of hole in the middle of the iron core by stay-bolt (4), it is characterized in that: what the iron core of described coil windings (16) adopted is the compressing segmental core of DT4 tube material (2), the coil of coil windings (16) is wound on the segmental core (2) by specification requirement, and uses without the colligation of latitude band (11) parcel; 6 coil windings (16) are provided with the connection that fixes in inside of 12 terminals, and this device is provided with 6 binding posts (15) and is used for connecting the motor terminal.
2. motor according to claim 1 is felt starting device frequently, it is characterized in that: described coil windings (16) adopt resistance wire (9) substitute copper cash as coil winding on segmental core (2).
3. motor according to claim 2 is felt starting device frequently, it is characterized in that: described coil windings (16) is made layer insulation with the heatproof asbestos board.
4. motor according to claim 1 is felt starting device frequently, it is characterized in that: adopt star connection when described 6 coil windings (16) are provided with 12 terminals and connect in inside.
5. motor according to claim 1 is felt starting device frequently, it is characterized in that: adopt the dihedral connection when described 6 coil windings (16) are provided with 12 terminals and connect in inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427342 CN202737793U (en) | 2012-08-27 | 2012-08-27 | Motor frequency sensitive starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427342 CN202737793U (en) | 2012-08-27 | 2012-08-27 | Motor frequency sensitive starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737793U true CN202737793U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220427342 Expired - Fee Related CN202737793U (en) | 2012-08-27 | 2012-08-27 | Motor frequency sensitive starter |
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| Country | Link |
|---|---|
| CN (1) | CN202737793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633887A (en) * | 2012-08-27 | 2014-03-12 | 龙浪 | Leakage flux reduction method of frequency response starter of wound-rotor motor and frequency response starter |
-
2012
- 2012-08-27 CN CN 201220427342 patent/CN202737793U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633887A (en) * | 2012-08-27 | 2014-03-12 | 龙浪 | Leakage flux reduction method of frequency response starter of wound-rotor motor and frequency response starter |
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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: 20130213 Termination date: 20140827 |
|
| EXPY | Termination of patent right or utility model |