CN111446816B - Six-phase AC motor frequency conversion speed regulation system - Google Patents
Six-phase AC motor frequency conversion speed regulation system Download PDFInfo
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- CN111446816B CN111446816B CN202010266903.XA CN202010266903A CN111446816B CN 111446816 B CN111446816 B CN 111446816B CN 202010266903 A CN202010266903 A CN 202010266903A CN 111446816 B CN111446816 B CN 111446816B
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- capacitor
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- current motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Abstract
The invention discloses a six-phase alternating current motor variable frequency speed control system, which structurally comprises a six-phase alternating current motor, a frequency converter, a capacitor protection mechanism, a rotor, a base, a heat dissipation fan and a dust cover, wherein a capacitor reduces vibration and impact transmitted by the six-phase alternating current motor through a damping spring, avoids the temperature rise of the capacitor due to vibration friction and can also reduce the instability of electrolyte in the capacitor, the capacitor is hermetically mounted at a conductive end by utilizing a movable cover, the damp condition of the capacitor is avoided, the contact of a port of the capacitor to air is reduced, the six-phase alternating current motor introduces wind power generated by the heat dissipation fan into a capacitor anti-collision frame through a wind guide pipe, the capacitor is cooled, so that the capacitor is low in temperature rise and slow in loss, the service life of the capacitor is long, the dust cover utilizes the water absorption mechanism to filter outside air entering the six-phase alternating-current motor, and the safety of the six-phase alternating-current motor is improved.
Description
Technical Field
The invention relates to the field of alternating-current variable-frequency capacitors, in particular to a variable-frequency speed regulating system of a six-phase alternating-current motor.
Background
Compared with the conventional three-phase alternating current motor, the six-phase alternating current motor has smaller output torque ripple and higher device reliability, and can realize high-power output under the condition of low-voltage power supply, so that the six-phase alternating current motor is very suitable for being applied to occasions such as electric automobiles, ship propulsion, aerospace and aviation and the like.
And six-phase alternating current motor just can change the motor rotational speed through changing power frequency, the decline of frequency can lead to the increase of magnetic flux, cause the magnetic circuit saturation, exciting current increases, power factor descends, iron core and coil are overheated, consequently need stabilize the conveyor current with the help of the condenser, long-time use, the condenser can receive the vibration of motor during operation and cause inside frequent generating heat, lead to the electrolyte slowly withering, thereby became invalid, six-phase alternating current motor internal temperature can rise when the variable speed, pull outside air through radiator fan and dispel the heat to inside, and outside air is wet occasionally can cause the inside soaking of motor and damage.
Disclosure of Invention
Aiming at the defects of the prior art, the invention is realized by the following technical scheme: the six-phase alternating current motor frequency conversion speed regulation system structurally comprises a six-phase alternating current motor, a frequency converter, a capacitance protection mechanism, a rotor, a base, a cooling fan and a dust cover, the top end of the six-phase alternating current motor is provided with a frequency converter, the six-phase alternating current motor is electrically connected with the frequency converter, the surface of the six-phase alternating current motor is provided with a capacitance protection mechanism which is connected with a frequency converter, a base is arranged below the bottom end of the six-phase alternating current motor, the six-phase alternating current motor and the base are of an integrated structure, the rotor is arranged at the middle position in the six-phase alternating current motor, the six-phase alternating current motor is mechanically connected with the rotor, the right end of the rotor is provided with a heat radiation fan, the rotor and the heat radiation fan are in clearance fit, the six-phase alternating current motor is characterized in that a dust cover is arranged at the right end of the six-phase alternating current motor, and the six-phase alternating current motor is movably connected with the dust cover.
As a further optimization of the technical scheme, the capacitance protection mechanism is communicated with the dust cover through the air guide pipe.
As the further optimization of this technical scheme, electric capacity protection mechanism constitute by electric capacity anticollision frame, intake pipe, exhaust hole, condenser, movable cover, binding post, electric capacity anticollision frame bottom have the intake pipe, electric capacity anticollision frame and intake pipe fixed connection, electric capacity anticollision frame surface on be equipped with the exhaust hole, electric capacity anticollision frame top on be equipped with the movable cover, electric capacity anticollision frame and movable cover threaded connection, the movable cover top on be equipped with binding post, movable cover and binding post be connected, the movable cover bottom under install the condenser.
As a further optimization of the technical scheme, the surface of the capacitor is provided with a backing plate, one end of the capacitor is attached to one end of the backing plate, and the other end of the backing plate is provided with a damping spring.
As a further optimization of the technical scheme, the movable cover further comprises a conducting strip, a rubber sealing ring and an installation sealing cover, the bottom end of the inner side of the movable cover is provided with the installation sealing cover, the movable cover and the installation sealing cover are of an integrated structure, the conducting strip is arranged inside the installation sealing cover, the installation sealing cover is fixedly connected with the conducting strip, the rubber sealing ring is arranged on the inner side of the installation sealing cover, and the installation sealing cover is connected with the rubber sealing ring in a gluing mode.
As the further optimization of this technical scheme, the dust cover constitute by the cover body, inlet port, puigging, attaching plate, water absorption mechanism, the cover body on the surface be equipped with the inlet port, the cover body inboard on be equipped with attaching plate, the cover body and attaching plate be connected through the puigging, attaching plate on be equipped with the water absorption mechanism more than two, attaching plate and water absorption mechanism fixed connection.
As the further optimization of this technical scheme, the mechanism of absorbing water constitute by support ring, swing piece, pivot, torque spring, play dirt mechanism, the support ring inboard on be equipped with the swing piece more than two, support ring and swing piece pass through pivot swing joint, the pivot install torque spring on the surface, swing piece one serve and be equipped with play dirt mechanism, swing piece and play dirt mechanism cooperate.
As a further optimization of the technical scheme, the dust ejecting mechanism is composed of water absorbing cotton, a reverse vibration sheet, filter holes and elastic pull back lines, the surface of the reverse vibration sheet is provided with the water absorbing cotton, the reverse vibration sheet is fixedly connected with the water absorbing cotton, the surfaces of the reverse vibration sheet and the water absorbing cotton are respectively provided with the filter holes, the outer side of the reverse vibration sheet is equidistantly provided with four elastic pull back lines, and the reverse vibration sheet is connected with the elastic pull back lines.
As a further optimization of the technical scheme, the capacitor anti-collision frame is communicated with the capacitor anti-collision frame through the matching of the air guide pipe and the air inlet pipe.
As a further optimization of the technical scheme, five swinging pieces on the inner side of the support ring form an annular structure.
As a further optimization of the technical scheme, the swinging pieces are provided with water absorption cotton and filtering holes.
Advantageous effects
The six-phase alternating current motor variable frequency speed control system of the invention has the advantages that when the six-phase alternating current motor works, the whole body can slightly vibrate, the capacitor is matched with the damping spring through the backing plate to reduce the vibration and impact transmitted by the six-phase alternating current motor, the temperature rise of the capacitor due to vibration friction is avoided, the instability of electrolyte in the capacitor can also be reduced, the capacitor is protected by the capacitor anti-collision frame, the capacitor is prevented from being deformed when being impacted by the outside, the capacitor element is damaged, the capacitor is prevented from short circuit, high-temperature explosion or even burning is caused, the movable cover is matched with the rubber sealing ring to seal the conductive end of the capacitor through the mounting of the sealing cover, the damp condition of the capacitor is avoided, the current of the capacitor is input and output through the conductive sheet, the contact of the port of the capacitor to the air, the internal temperature can rise, the external air is drawn by the cooling fan to cool the interior, the dustproof cover utilizes the sound insulation layer to reduce the noise generated when the cooling fan works, when external air is drawn into the six-phase alternating current motor from the air inlet, the air passes through the water absorption mechanism, the air drives water molecules or dust to push the anti-vibration sheet to enter the inner side, the support ring absorbs and intercepts dust from water molecules in the air through the water absorption cotton, so that the phenomenon that the water molecules enter the capacitor after immersing the six-phase alternating current motor or entering the capacitor along with the air guide pipe to cause short circuit of the capacitor is avoided, the capacitor anti-collision frame introduces wind power generated by the cooling fan into the capacitor anti-collision frame by utilizing the air guide pipe, the capacitor is cooled, the service life of the capacitor is prolonged, and when the cooling fan stops working, the anti-vibration piece utilizes the elastic force of the elastic return pull wire to reversely vibrate out the residual dust on the absorbent cotton.
Compared with the prior art, the invention has the beneficial effects that: the capacitor reduces vibration and impact transmitted by the six-phase alternating current motor through the damping spring, the temperature rise of the capacitor due to vibration friction is avoided, the instability of electrolyte in the capacitor can be reduced, the capacitor is hermetically mounted at a conductive end by using the movable cover, the damp condition of the capacitor is avoided, the contact of a port of the capacitor to air is reduced, the wind power generated by the cooling fan is introduced into the anti-collision frame of the capacitor through the air guide pipe by the six-phase alternating current motor, the capacitor is cooled, the lower the temperature rise of the capacitor is, the slower the loss is, the longer the service life is, the external air entering the six-phase alternating current motor is filtered by the dust cover through the water absorption mechanism, and the safety of the six-phase alternating current motor is improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of a six-phase alternating current motor variable frequency speed control system of the invention.
Fig. 2 is a schematic structural diagram of the capacitive protection mechanism of the present invention.
Fig. 3 is a schematic structural view of the removable cover of the present invention.
Fig. 4 is a schematic structural view of the dust cover of the present invention.
Fig. 5 is a schematic structural view of the water absorbing mechanism of the present invention.
Fig. 6 is a schematic structural diagram of the dust ejection mechanism of the present invention.
In the figure: six-phase alternating current motor-1, frequency converter-2, capacitance protection mechanism-3, rotor-4, base-5, cooling fan-6, dust cover-7, air guide pipe-f 1, capacitance anti-collision frame-3 a, air inlet pipe-3 b, air outlet hole-3 c, capacitor-3 d, movable cover-3 e, wiring terminal-3 f, backing plate-3 d1, damping spring-3 d2, conducting plate-3 e1, rubber sealing ring-3 e2, installation sealing cover-3 e3, cover body-7 a, air inlet hole-7 b, sound insulation layer-7 c, attaching plate-7 d, water absorbing mechanism-7 e, supporting ring-7 e1, swinging plate-7 e2, rotating shaft-7 e3, torsion spring-7 e4, dust ejecting mechanism-7 e4, Water absorbent cotton-7 e51, anti-vibration sheet-7 e52, filtering hole-7 e53 and elastic back-pulling line-7 e 54.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Example 1
Referring to fig. 1-3, the present invention provides a six-phase ac motor variable frequency speed control system, which comprises a six-phase ac motor 1, a frequency converter 2, a capacitance protection mechanism 3, a rotor 4, a base 5, a heat dissipation fan 6, and a dust cover 7, wherein the frequency converter 2 is arranged on the top end of the six-phase ac motor 1, the six-phase ac motor 1 is electrically connected with the frequency converter 2, the capacitance protection mechanism 3 is arranged on the surface of the six-phase ac motor 1, the capacitance protection mechanism 3 is connected with the frequency converter 2, the base 5 is arranged under the bottom end of the six-phase ac motor 1, the six-phase ac motor 1 and the base 5 are of an integrated structure, the rotor 4 is arranged in the middle position inside the six-phase ac motor 1, the six-phase ac motor 1 is mechanically connected with the rotor 4, the heat dissipation fan 6 is arranged on the right end of the rotor 4, and the rotor 4 and the heat dissipation fan 6, the dustproof cover 7 is arranged at the right end of the six-phase alternating current motor 1, and the six-phase alternating current motor 1 is movably connected with the dustproof cover 7.
The capacitance protection mechanism 3 is communicated with the dust cover 7 through an air duct f 1.
Electric capacity protection mechanism 3 constitute by electric capacity anticollision frame 3a, intake pipe 3b, exhaust hole 3c, condenser 3d, movable cover 3e, binding post 3f, electric capacity anticollision frame 3a bottom have intake pipe 3b, electric capacity anticollision frame 3a and intake pipe 3b fixed connection, electric capacity anticollision frame 3a on the surface be equipped with exhaust hole 3c, electric capacity anticollision frame 3a top on be equipped with movable cover 3e, electric capacity anticollision frame 3a and movable cover 3e threaded connection, movable cover 3e top on be equipped with binding post 3f, movable cover 3e and binding post 3f be connected, movable cover 3e bottom under install condenser 3 d.
The surface of the capacitor 3d is provided with a backing plate 3d1, one end of the capacitor 3d is attached to one end of a backing plate 3d1, and the other end of the backing plate 3d1 is provided with a damping spring 3d 2.
Movable cover 3e still include conducting strip 3e1, rubber seal 3e2, the sealed lid 3e3 of installation, the inboard bottom of movable cover 3e have the sealed lid 3e3 of installation, movable cover 3e and the sealed lid 3e3 of installation structure as an organic whole, the sealed inside conducting strip 3e1 that is equipped with of the sealed lid 3e3 of installation, the sealed lid 3e3 of installation and conducting strip 3e1 fixed connection, the sealed lid 3e3 of installation inboard on be equipped with rubber seal 3e2, the sealed lid 3e3 of installation and rubber seal 3e2 glue connection.
The principle of the embodiment: when the six-phase alternating current motor 1 works, the whole body slightly generates vibration, the capacitor 3d reduces the vibration and impact transmitted by the six-phase alternating current motor 1 through the cushion plate 3d1 and the damping spring 3d2 by matching, the temperature rise of the capacitor 3d due to vibration friction is avoided, the instability of electrolyte in the capacitor 3d can be reduced, the capacitor 3d is protected by the capacitor anti-collision frame 3a, the capacitor 3d is prevented from being deformed when being impacted by the outside, capacitor elements are damaged, the short circuit of the capacitor is caused, high-temperature explosion or even burning is caused, the movable cover 3e is used for sealing and installing the conductive end of the capacitor 3d through installing the sealing cover 3e3 and matching the rubber sealing ring 3e2, and the damp condition of the capacitor 3d is avoided, the current of the capacitor 3d is input and output through the conductive sheet 3e1, and the contact of the port of the capacitor 3d with air is reduced.
The method for solving the problems in the embodiment is as follows: the capacitor 3d reduces the vibration and impact transmitted by the six-phase alternating current motor 1 through the damping spring 3d2, avoids the temperature rise of the capacitor 3d due to vibration and friction, can also reduce the instability of electrolyte in the capacitor 3d, and the capacitor 3d utilizes the movable cover 3e to carry out sealed installation on the conductive end of the capacitor 3d, thereby avoiding the occurrence of the damp condition of the capacitor 3d and reducing the contact of the port of the capacitor 3d to air.
Example 2
Referring to fig. 1-6, the present invention provides a six-phase ac motor variable frequency speed control system, wherein the dust cover 7 is composed of a cover body 7a, an air inlet 7b, a sound insulation layer 7c, an attachment plate 7d, and a water absorption mechanism 7e, the surface of the cover body 7a is provided with the air inlet 7b, the inner side of the cover body 7a is provided with the attachment plate 7d, the cover body 7a and the attachment plate 7d are connected through the sound insulation layer 7c, the attachment plate 7d is provided with two or more water absorption mechanisms 7e, and the attachment plate 7d and the water absorption mechanisms 7e are fixedly connected.
The dust ejecting mechanism 7e5 is composed of water absorption cotton 7e51, anti-vibration sheets 7e52, filter holes 7e53 and elastic pullback wires 7e54, the surface of the anti-vibration sheets 7e52 is provided with the water absorption cotton 7e51, the anti-vibration sheets 7e52 are fixedly connected with the water absorption cotton 7e51, the surfaces of the anti-vibration sheets 7e52 and the water absorption cotton 7e51 are respectively provided with the filter holes 7e53, the outer sides of the anti-vibration sheets 7e52 are equidistantly provided with the four elastic pullback wires 7e54, the anti-vibration sheets 7e52 are connected with the elastic pullback wires 7e54, the capacitor anti-collision frame 3a and the capacitor anti-collision frame 3a are communicated with an air inlet pipe 3b through an air guide pipe f1, the five inner swing sheets 7e2 of the support ring 7e1 form an annular structure, and the swing sheets 7e5 are respectively provided with the water absorption cotton 7e51 and the filter holes 53.
The principle of the embodiment: when the six-phase alternating current motor 1 works at variable frequency and speed, the internal temperature rises, the external air is pulled by the cooling fan 6 to cool the interior of the six-phase alternating current motor, the noise generated when the cooling fan 6 works is reduced by the dustproof cover 7 through the sound insulation layer 7c, when the external air is pulled to enter the six-phase alternating current motor 1 from the air inlet 7b, the external air passes through the water absorption mechanism 7e, the air drives water molecules or dust to push the anti-vibration sheet 7e52 to enter the interior, the support ring 7e1 absorbs and intercepts the dust from the water molecules in the air through the water absorption cotton 7e51, the water molecules are prevented from entering the six-phase alternating current motor 1 or entering the capacitor 3d along with the air guide pipe f1, the capacitor 3d is short-circuited, the capacitor anti-collision frame 3a utilizes the air guide pipe f1 to introduce the wind power generated by the cooling fan 6 into the capacitor, the service life of the radiating fan is prolonged, and when the radiating fan 6 stops working, the anti-vibration sheet 7e52 utilizes the elastic force of the elastic return wire 7e54 to reversely vibrate out the dust remained on the absorbent cotton 7e 51.
The method for solving the problems in the embodiment is as follows: the six-phase alternating current motor 1 introduces wind power generated by the cooling fan 6 into the capacitor anti-collision frame 3a through the air guide pipe f1 to cool the capacitor 3d, so that the lower the temperature rise of the capacitor 3d is, the slower the loss is, the longer the service life is, the dust cover 7 filters outside air entering the six-phase alternating current motor 1 through the water absorption mechanism 7e, and the safety of the six-phase alternating current motor 1 is improved.
While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. Six phase AC motor variable frequency speed control system, its structure includes six phase AC motor (1), converter (2), electric capacity protection mechanism (3), rotor (4), base (5), radiator fan (6), dust cover (7), its characterized in that: the device is characterized in that a frequency converter (2) is arranged on the top end of the six-phase alternating current motor (1), the six-phase alternating current motor (1) is electrically connected with the frequency converter (2), a capacitance protection mechanism (3) is installed on the surface of the six-phase alternating current motor (1), the capacitance protection mechanism (3) is connected with the frequency converter (2), a base (5) is arranged under the bottom end of the six-phase alternating current motor (1), the six-phase alternating current motor (1) and the base (5) are of an integrated structure, a rotor (4) is arranged in the middle position inside the six-phase alternating current motor (1), the six-phase alternating current motor (1) is mechanically connected with the rotor (4), a cooling fan (6) is arranged on the right end of the rotor (4), the rotor (4) and the cooling fan (6) are in clearance fit, a dust cover (7) is arranged on the right end of the, the six-phase alternating current motor (1) is movably connected with the dust cover (7), and the capacitance protection mechanism (3) is communicated with the dust cover (7) through an air guide pipe (f 1);
the capacitor protection mechanism (3) consists of a capacitor anti-collision frame (3a), an air inlet pipe (3b), an exhaust hole (3c), a capacitor (3d), a movable cover (3e) and a wiring terminal (3f), the air inlet pipe (3b) is arranged below the bottom end of the capacitor anti-collision frame (3a), the capacitor anti-collision frame (3a) is fixedly connected with the air inlet pipe (3b), the surface of the capacitor anti-collision frame (3a) is provided with the exhaust hole (3c), the top end of the capacitor anti-collision frame (3a) is provided with the movable cover (3e), the capacitor anti-collision frame (3a) is in threaded connection with the movable cover (3e), the top end of the movable cover (3e) is provided with the wiring terminal (3f), the movable cover (3e) is connected with the wiring terminal (3f), the bottom end of the movable cover (3e) is provided with the capacitor (3d), a pad (3d1) is arranged on the surface of the capacitor (3d), one end of the capacitor (3d) is attached to one end of the pad (3d1), and a damping spring (3d2) is arranged at the other end of the pad (3d 1);
the movable cover (3e) further comprises a conducting strip (3e1), a rubber sealing ring (3e2) and a mounting sealing cover (3e3), a mounting sealing cover (3e3) is arranged below the bottom end of the inner side of the movable cover (3e), the movable cover (3e) and the mounting sealing cover (3e3) are of an integrated structure, a conducting strip (3e1) is arranged inside the mounting sealing cover (3e3), the mounting sealing cover (3e3) is fixedly connected with the conducting strip (3e1), a rubber sealing ring (3e2) is arranged on the inner side of the mounting sealing cover (3e3), and the mounting sealing cover (3e3) is connected with the rubber sealing ring (3e2) in a gluing mode;
the dustproof cover (7) is composed of a cover body (7a), an air inlet (7b), a sound insulation layer (7c), an attaching plate (7d) and a water absorption mechanism (7e), wherein the surface of the cover body (7a) is provided with the air inlet (7b), the inner side of the cover body (7a) is provided with the attaching plate (7d), the cover body (7a) and the attaching plate (7d) are connected through the sound insulation layer (7c), the attaching plate (7d) is provided with more than two water absorption mechanisms (7e), and the attaching plate (7d) is fixedly connected with the water absorption mechanisms (7 e);
the water absorption mechanism (7e) consists of a support ring (7e1), a swinging piece (7e2), a rotating shaft (7e3), a torsion spring (7e4) and a dust ejection mechanism (7e5), wherein more than two swinging pieces (7e2) are arranged on the inner side of the support ring (7e1), the support ring (7e1) and the swinging pieces (7e2) are movably connected through the rotating shaft (7e3), the torsion spring (7e4) is installed on the surface of the rotating shaft (7e3), the dust ejection mechanism (7e5) is arranged at one end of the swinging piece (7e2), and the swinging pieces (7e2) are matched with the dust ejection mechanism (7e 5);
the dust bouncing mechanism (7e5) is composed of water absorption cotton (7e51), a reverse vibration sheet (7e52), a filtering hole (7e53) and an elastic back-pulling line (7e54), the surface of the reverse vibration sheet (7e52) is provided with the water absorption cotton (7e51), the reverse vibration sheet (7e52) is fixedly connected with the water absorption cotton (7e51), the surfaces of the reverse vibration sheet (7e52) and the water absorption cotton (7e51) are respectively provided with the filtering hole (7e53), the outer side of the reverse vibration sheet (7e52) is equidistantly provided with four elastic back-pulling lines (7e54), and the reverse vibration sheet (7e52) is connected with the elastic back-pulling lines (7e 54).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010266903.XA CN111446816B (en) | 2020-04-07 | 2020-04-07 | Six-phase AC motor frequency conversion speed regulation system |
| CN202110165331.0A CN112865429A (en) | 2020-04-07 | 2020-04-07 | Six-phase alternating current motor variable frequency speed regulation system and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010266903.XA CN111446816B (en) | 2020-04-07 | 2020-04-07 | Six-phase AC motor frequency conversion speed regulation system |
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|---|---|---|---|
| CN202110165331.0A Division CN112865429A (en) | 2020-04-07 | 2020-04-07 | Six-phase alternating current motor variable frequency speed regulation system and use method thereof |
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| Publication Number | Publication Date |
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| CN111446816A CN111446816A (en) | 2020-07-24 |
| CN111446816B true CN111446816B (en) | 2021-03-30 |
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| CN202110165331.0A Withdrawn CN112865429A (en) | 2020-04-07 | 2020-04-07 | Six-phase alternating current motor variable frequency speed regulation system and use method thereof |
| CN202010266903.XA Active CN111446816B (en) | 2020-04-07 | 2020-04-07 | Six-phase AC motor frequency conversion speed regulation system |
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| CN112332582B (en) * | 2020-10-21 | 2021-11-30 | 嘉兴久珥科技有限公司 | Anti-falling stone motor based on magnetorheological fluid |
| CN114374291B (en) * | 2021-11-09 | 2024-01-19 | 铜陵市金利电子有限公司 | High-safety temperature-sensing dustproof brushless motor |
| CN114123605B (en) * | 2021-11-25 | 2023-07-18 | 江苏高科电机有限公司 | High-reliability explosion-proof variable frequency motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5722644B2 (en) * | 2011-01-27 | 2015-05-27 | 株式会社日立産機システム | Rotating electric machine |
| CN204946722U (en) * | 2015-08-21 | 2016-01-06 | 浙江五峰电容器有限公司 | Capacitor explosion-proof casing |
| CN205610390U (en) * | 2016-05-10 | 2016-09-28 | 三门县职业中等专业学校 | Novel water pressure test switch reluctance machine |
| CN106533098A (en) * | 2016-11-30 | 2017-03-22 | 中车永济电机有限公司 | Variable frequency speed regulation asynchronous motor with mechanical brake device for top drive |
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2020
- 2020-04-07 CN CN202110165331.0A patent/CN112865429A/en not_active Withdrawn
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| CN111446816A (en) | 2020-07-24 |
| CN112865429A (en) | 2021-05-28 |
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