CN211701642U - Three-phase alternating current variable frequency motor device - Google Patents
Three-phase alternating current variable frequency motor device Download PDFInfo
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- CN211701642U CN211701642U CN202020663859.1U CN202020663859U CN211701642U CN 211701642 U CN211701642 U CN 211701642U CN 202020663859 U CN202020663859 U CN 202020663859U CN 211701642 U CN211701642 U CN 211701642U
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Abstract
The utility model discloses a three-phase alternating current variable frequency motor device, which comprises a base, a shell, a stator, a rotor, a rotating shaft, a front end cover, a heat dissipation device and a junction box, wherein the stator comprises a stator core and a winding, the inner side and the outer side of the stator core are respectively provided with a trapezoidal wire slot and a pipe slot at equal central angles, the opening of the trapezoidal wire slot faces to the inner side and the outer side respectively, the winding is wound in the trapezoidal wire slot by adopting a star connection and angle connection mixed connection mode, a condensing pipe is arranged in the pipe slot, and a spiral penetration adjacent; the heat abstractor includes gear train and a plurality of fan, and the gear train includes driven gear of the driving gear that the meshing is connected and a plurality of connection fan, and the diameter of driving gear is greater than driven gear diameter and the number of teeth and is two times of driven gear number of teeth at least, and adjacent driven gear forms the contained angle with driving gear centre of a circle angle department and equals, driving gear connection pivot, the utility model discloses combine water cooling and air-cooled mode, the radiating effect is excellent, increases the fan rotational speed, satisfies the air-cooled radiating effect under the different frequency conversion circumstances, and is energy-conserving.
Description
Technical Field
The utility model relates to the technical field of motors, concretely relates to three-phase exchanges inverter motor device.
Background
An ac motor is composed of an electromagnet winding or distributed stator winding for generating a magnetic field and a rotating armature or rotor to convert the electric energy of the ac current into mechanical energy. With the rapid development of power electronic technology, compared with a common motor designed with constant voltage and constant frequency, the motor with variable frequency and speed regulation is continuously perfected and widely applied.
After the motor starts, the heat mainly comes from stator and the rotor resistance heat production after the rotor rotates, and the cooling method of adoption generally adopts forced air cooling and water-cooling mode, and the interior radiator fan of ordinary motor is connected with the rotor pivot, though comparatively energy-conserving, but fan slew velocity reduces along with the motor frequency conversion, and the radiating effect reduces greatly, for overcoming this shortcoming, radiator fan adopts independent structure in the frequency conversion motor, satisfies the radiating effect, but the energy consumption increase.
Disclosure of Invention
In order to solve the above problem, the utility model aims at providing a three-phase AC variable frequency motor device alternates in stator core and is equipped with the condenser pipe, on the basis of original ordinary motor, adopts gear engagement and adds the fan, improves the fan rotational speed, increases the radiating effect, and reduces the energy consumption, reduce cost.
The utility model adopts the technical proposal that:
a three-phase alternating current variable frequency motor device comprises a base, a shell, a stator, a rotor, a rotating shaft, a front end cover, a heat dissipation device and a junction box, wherein the stator comprises a stator core and a winding, the inner side and the outer side of the stator core are respectively provided with a trapezoidal wire slot and a pipe slot at equal central angles, the openings of the trapezoidal wire slot and the pipe slot face the inner side and the outer side respectively, the resistance of the rotor is increased due to the skin effect of higher harmonics, the winding is wound in the trapezoidal wire slot in a star-joint and angle-joint mixed connection mode, the harmonic frequency is weakened, the winding coefficient is improved, the additional loss is reduced, a condensing pipe is arranged in the pipe slot, and; the heat dissipation device comprises a gear set and a plurality of fans, wherein the gear set comprises a driving gear and a plurality of driven gears, the driving gear is connected in a meshed mode, the diameter of the driving gear is larger than the diameter of the driven gear, the number of teeth of the driven gear is at least two times that of the number of teeth of the driven gear, the rotating speed of the driven gear is faster than that of the driving gear through a rotating speed transmission ratio, the rotating speed of the fan is further improved, the heat dissipation effect is improved, when the rotating speed is reduced during frequency conversion, the rotating speed of the fan is still faster than that of a rotating shaft, the heat dissipation effect is met, an included angle is formed between the adjacent driven gear and the center.
Preferably, the base is arranged below the shell, the bottom of the base is provided with an anti-skidding rubber block, the front end cover and the heat dissipation device are respectively arranged on the front side and the rear side of the shell, and the junction box is arranged on the shell.
Preferentially, the stator core is attached to the inner wall of the shell, the rotating shaft is coaxial and inserted in the rotor, is arranged in the winding and penetrates through the driving gear to be connected with the heat dissipation device.
Preferentially, the outer side of the driven gear is sleeved with a toothed chain to strengthen the fixation of the driven gear.
Preferably, the outer side of the heat dissipation device is provided with a ventilation cover and heat dissipation holes.
Preferentially, the rubber block is inlayed between condenser pipe and tube seat, avoids arousing the condenser pipe vibrations because of the rotor rotates, prevents its damage.
Preferentially, the rotor adopts a cage type rotor, and the requirement of reducing the rotor consumption caused by cutting the rotor by high harmonic current and large slip is met.
Preferably, the fan diameter is less than the vent cover radius.
Preferentially, the bearing is arranged on the outer side of the rotating shaft and the outer side of the front end cover and is coated with lubricating grease, so that the insulating property of the bearing is improved, the bearing is prevented from being damaged due to shaft current generated by asymmetric magnetic circuits, and the problem of temperature rise of the bearing is solved.
The utility model has the advantages that:
1. the outer side of the stator core is provided with a pipe groove, a condensing pipe is spirally inserted, and when the rotor rotates, heat dissipation is firstly carried out;
2. the heat dissipation device adopts a structure that the large-diameter driving gear is meshed with the small-diameter driven gear, so that the rotating speed of the fan is higher than that of the rotating shaft at any moment, the heat dissipation effect is improved, the rotating shaft drives the driving gear to rotate, and the energy consumption is reduced and is energy-saving.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the stator core of the present invention;
fig. 3 is a schematic view of the gear set structure of the present invention.
Labeled as: 1. the motor comprises a shell, 2 parts of a base, 21 parts of an anti-skid rubber block, 3 parts of a stator, 31 parts of a stator iron core, 311 parts of a trapezoidal wire groove, 312 parts of a pipe groove, 313 parts of a condenser pipe, 314 parts of a rubber block, 4 parts of a rotor, 5 parts of a rotating shaft, 51 parts of a bearing, 6 parts of a front end cover, 7 parts of a heat dissipation device, 71 parts of a gear set, 711 parts of a driving gear, 712 parts of a driven gear, 713 parts of a toothed chain, 72 parts of a fan, 8 parts of a junction box, 9 parts of a ventilation cover and 91.
Detailed Description
As shown in fig. 1, a three-phase ac frequency conversion motor device comprises a base 2, a housing 1, a stator 3, and a rotor 4, the motor comprises a rotating shaft 5, a front end cover 6, a heat dissipation device 7 and a junction box 8, wherein the stator 3 comprises a stator iron core 31 and a winding, a base 2 is arranged below a shell 1, the bottom of the base is provided with an anti-skidding rubber block 21, the front end cover 6 and the heat dissipation device 7 are respectively arranged on the front side and the rear side of the shell 1, the junction box 8 is arranged on the shell 1, the stator iron core 31 is attached to the inner wall of the shell 1, the rotating shaft 5 is coaxial and is arranged in a rotor 4 in an inserting mode, is arranged in the winding and penetrates through a driving gear 711 to be connected with the heat dissipation device 7, a bearing 51 is arranged on the outer side of the rotating shaft 5 and the outer side of the front end cover 6 and is coated with lubricating grease, the insulating property of the bearing 51 is improved, the bearing 51 is prevented from being damaged due to;
as shown in fig. 2, trapezoidal wire slots 311 and pipe slots 312 are respectively arranged on the inner side and the outer side of the stator core 31 at equal central angles, and the openings of the trapezoidal wire slots and the pipe slots are respectively towards the inner side and the outer side, so that the resistance of the rotor 4 is prevented from being increased due to the skin effect of higher harmonics, the winding is wound in the wire slots by adopting a star connection and angle connection mixed connection mode, the harmonic frequency is weakened, the winding coefficient is improved, the additional loss is reduced, a condenser pipe 313 is arranged in the pipe slot 312 and is inserted into and wound in the adjacent pipe slots 312 to form a closed loop, a refrigerant can be added into the condenser pipe 313, the temperature is reduced by adopting a water cooling mode, and a rubber block 314 is embedded between the condenser;
as shown in fig. 1 and fig. 3, the heat dissipating device 7 includes a gear set 71 and a plurality of fans 72, the gear set 71 includes a driving gear 711 and a plurality of driven gears 712 connected to the fans 72, the diameter of the driving gear 711 is greater than the diameter of the driven gear 712, and the number of teeth of the driving gear 711 is at least twice the number of teeth of the driven gear 712, the rotating speed of the driven gear 712 is faster than that of the driving gear 711 through a rotating speed transmission ratio, thereby increasing the rotating speed of the fans 72 and increasing the heat dissipating effect, when the rotating speed is reduced during frequency conversion, the rotating speed of the fans 72 is still several times the rotating speed of the rotating shaft 5, which satisfies the heat dissipating effect, an included angle is formed between adjacent driven gears 712 and the center angle of the driving gear 711, the driving gear 711 is connected to the rotating shaft 5, the driving gear 711 is driven to rotate by the rotating shaft 5, which, the outer side of the heat dissipation device 7 is provided with a ventilation cover 9 and heat dissipation holes 91.
The utility model has the advantages that: compact structure combines water cooling and air-cooled mode, and the radiating effect is excellent, and big pinion meshing increases the fan rotational speed, satisfies the air-cooled radiating effect under the different frequency conversion circumstances, and energy-conservation, with low costs.
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 (9)
1. The utility model provides a three-phase exchanges inverter motor device, includes base, shell, stator, rotor, pivot, front end housing, heat abstractor, terminal box, its characterized in that: the stator comprises a stator core and a winding, the inner side and the outer side of the stator core are respectively provided with a trapezoidal wire groove and a pipe groove at equal central angles, the openings of the trapezoidal wire groove and the pipe groove face the inner side and the outer side respectively, the winding is wound in the trapezoidal wire groove in a star connection and angle connection mixed connection mode, a condensing pipe is arranged in the pipe groove, and adjacent pipe grooves are spirally inserted to form a closed loop; the heat abstractor includes gear train and a plurality of fan, and the gear train includes the driven gear of the driving gear that the meshing is connected and a plurality of connection fan, and the diameter of driving gear is greater than driven gear diameter and the number of teeth and is two times of driven gear number of teeth at least, and adjacent driven gear forms the contained angle with driving gear centre of a circle angle department and equals, driving gear connection the pivot.
2. The three-phase ac inverter motor apparatus of claim 1, wherein: the base is arranged under the shell, the bottom of the base is provided with an anti-skidding rubber block, the front end cover and the heat dissipation device are respectively arranged on the front side and the rear side of the shell, and the junction box is arranged on the shell.
3. The three-phase ac inverter motor apparatus of claim 1, wherein: the stator core is attached to the inner wall of the shell, the rotating shaft is coaxial and penetrates through the rotor, the rotor is arranged in the rotor, the winding is arranged inside the rotor, and the rotor penetrates through the driving gear to be connected with the heat dissipation device.
4. The three-phase ac inverter motor apparatus of claim 1, wherein: and a toothed chain is sleeved on the outer side of the driven gear.
5. The three-phase ac inverter motor apparatus of claim 1, wherein: the heat abstractor outside is equipped with the ventilation lid and evenly is equipped with the louvre.
6. The three-phase ac inverter motor apparatus of claim 1, wherein: and a rubber block is embedded between the condensation pipe and the pipe groove.
7. The three-phase ac inverter motor apparatus of claim 1, wherein: the rotor is a cage rotor.
8. The three-phase ac inverter motor apparatus of claim 1, wherein: the diameter of the fan is smaller than the radius of the ventilation cover.
9. The three-phase ac inverter motor apparatus of claim 1, wherein: and bearings are arranged on the outer side of the rotating shaft and the outer side of the front end cover and coated with lubricating grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020663859.1U CN211701642U (en) | 2020-04-27 | 2020-04-27 | Three-phase alternating current variable frequency motor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020663859.1U CN211701642U (en) | 2020-04-27 | 2020-04-27 | Three-phase alternating current variable frequency motor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211701642U true CN211701642U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020663859.1U Expired - Fee Related CN211701642U (en) | 2020-04-27 | 2020-04-27 | Three-phase alternating current variable frequency motor device |
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| CN (1) | CN211701642U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769296A (en) * | 2020-12-31 | 2021-05-07 | 江苏金华东机电有限公司 | Efficient three-phase asynchronous motor with unequal-turn forward winding |
| CN113300526A (en) * | 2021-05-11 | 2021-08-24 | 高俊 | Environment-friendly energy-saving motor |
-
2020
- 2020-04-27 CN CN202020663859.1U patent/CN211701642U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769296A (en) * | 2020-12-31 | 2021-05-07 | 江苏金华东机电有限公司 | Efficient three-phase asynchronous motor with unequal-turn forward winding |
| CN113300526A (en) * | 2021-05-11 | 2021-08-24 | 高俊 | Environment-friendly energy-saving motor |
| CN113300526B (en) * | 2021-05-11 | 2022-08-26 | 浙江方特智能传动有限公司 | Environment-friendly energy-saving motor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |