CN104578469B - A kind of method, apparatus for reducing switched reluctance machines vibration and noise - Google Patents
A kind of method, apparatus for reducing switched reluctance machines vibration and noise Download PDFInfo
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- CN104578469B CN104578469B CN201510033024.1A CN201510033024A CN104578469B CN 104578469 B CN104578469 B CN 104578469B CN 201510033024 A CN201510033024 A CN 201510033024A CN 104578469 B CN104578469 B CN 104578469B
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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
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/20—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
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- Power Engineering (AREA)
- Synchronous Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of method for reducing switched reluctance machines vibration and noise, the stator of the switched reluctance machines is encapsulated as sealing cavity configuration, the annular seal space seals the one-piece stator part in addition to the stator inner surface, is packaged with cooling medium in the annular seal space；When the switched reluctance machines start, the gas in the annular seal space is extracted；When the cooling medium seethes with excitement, stop pumping.The above method is when switched reluctance machines start, the pressure of stator side seal cavity can be reduced rapidly by extracting the gas in annular seal space, and then the boiling point for being packaged in cooling medium therein is reduced, therefore cooling medium can be made to reach the medium boiling temperature after decompression at once, its boiling is produced bubble.When cooling medium comes to life, it is not necessary to reduce pressure again, stop pumping, make electrical machine energy-saving operation, improve efficiency.The invention also discloses a kind of device for reducing switched reluctance machines vibration and noise.
Description
Technical field
The present invention relates to technical field of motors, more particularly to a kind of method for reducing switched reluctance machines vibration and noise,
Device.
Background technology
The field of switched reluctance machines most application prospect is new-energy automobile, still, conventional switched reluctance motor
When drive system is applied on new-energy automobile, seriously restricted because of its intrinsic vibration and noise problem.
As shown in figure 1, the figure is the structure principle chart of the pole switching reluctance motor of three-phase 6/4.From figure 1 it appears that open
Close reluctance motor stator core 1, rotor 2 be radially arranged, switched reluctance machines carry out work by magnetic resistance change rate, i.e., according to
Powerful magnetic field force is produced by the descending change procedure of magnetic resistance.In order to produce the magnetic resistance of change, switch electricity can only be used
Source powers, and magnetic pull caused by Switching Power Supply is pulsation, and then it is also pulsation to drag the electromagnetic torque that rotor 2 rotates.
The magnetic resistance change rate not only produces tangential electromagnet pull, that is, corresponding to the electromagnetic torque of the dragging rotation of rotor 2
Power, but also radial direction electromagnetic attraction be present, it is intended to stator core 1, rotor 2 attract each other and tries hard to compress stator core 1, turn
Air gap between son 2.When stator tooth is relative with the groove of rotor 2, this radial direction electromagnetic attraction is minimum；When stator tooth, the tooth of rotor 2 are relative
When, this radial direction electromagnetic attraction is maximum, and this is also a kind of electromagnetic force wave of pulsation.Under such force field, rotor 2 is real
Body cylinder and there is good rigidity, do not influenceed by pulsating electromagnetic suction substantially；And stator is shell structure, can not keep away
Exempt from because being vibrated by the compression of radial pulsation electromagnetic attraction effect generation systematicness, expansion, the vibration is outwards launched by casing
Noise, once the frequency of the vibration overlaps with the intrinsic frequency of stator, noise will be extremely serious.
In order to reduce above-mentioned vibration and noise, opened as shown in Fig. 2 ZL 201420153401.6 have developed evaporation cooling
Close the scheme of reluctance motor：Its stator structure is encapsulated as to overall sealing structure, including stator core 1, is surrounded on stator iron
The winding of the periphery of core 1, the housing 3 covered in outside stator core 1, and the connecting cylinder 4 to form annular seal space 5, stator are connected with housing 3
Iron core 1 and winding are surrounded in annular seal space 5, and the vibration to stator core 1 and winding is packaged with annular seal space 5 and produces damping action
The cooling medium 6 of power.
So, in addition to the magnetic pole inner surface of stator core 1, every other stationary part is sealed, sealed in annular seal space 5
Cooling medium 6 is filled, condenser 7 finally is installed on the top of the body of annular seal space 5.During work, cooling medium 6 turns into gaseous state after seething with excitement
And rise, return to liquid condition after the condensation of condensed device 7, thus the heat that stator is sent can be continuously transmitted to cold
Condenser 7, then by the cooling water in condenser 7, these heats are all taken away.
Using the scheme of above-mentioned evaporation cooling switched reluctance machines, immersion is whole stator core 1 and stator winding, only
Do not include the inner surface of the magnetic pole of stator core 1 solely, the part using the inner surface of the magnetic pole of stator core 1 as the dignity of annular seal space 5,
So design ensures that stator required by switched reluctance machines, the narrow air gap between the magnetic pole of rotor 2.Then in motor
Bottom of shell slowly injects liquid cooling medium 6, and the stator being encapsulated entirety is fully soaked, when motor operation, even if
Have the trend that stator is influenceed to have deformation and vibration by Radial magnetic force effect and torque pulsation, but because of surrounding have density compared with
Big cooling medium 6 can prevent the generation of this deformation and vibration in time, that is, to this Radial magnetic force and deformation with shaking
Dynamic to form stronger reaction damping force, thus reached reduces the purpose of vibration and noise by soaking dielectric, together
When also solve the problems, such as the cooling of stator, and cooling effect is well more many than original fan coolling.
However, if the cooling medium 6 allowed in the body of annular seal space 5 substantially eliminates vibration, it should allows the medium to be in evaporation and seethes with excitement
State.But for electric automobile, motor can not possibly be in running status all the time, always in start, traveling,
Braking stop as in cyclic process, moreover, when motor just starts, the cooling medium 6 in the body of seal stator chamber 5 is often
Cooling, it is impossible to evaporation fluidized state is immediately entered, and exactly when switched reluctance machines just start, electromagnetic attraction is maximum, shakes
It is dynamic to be easiest to occur.Therefore, though the scheme of above-mentioned evaporation cooling switched reluctance machines is good, the effect of vibration and noise reducing in implementation process
Fruit is not fully up to expectations.
In view of this, it would be highly desirable to for above-mentioned technical problem, it is further provided it is a kind of reduce switched reluctance machines vibration with
The method and apparatus of noise, so that cooling medium seethes with excitement rapidly after switched reluctance machines starting, further function as vibration and noise reducing
Effect.
The content of the invention
The purpose of the present invention is provides a kind of method for the vibration and noise for reducing switched reluctance machines, so that seal stator
The cooling medium of intracavitary seethes with excitement rapidly after switched reluctance machines starting, further functions as the effect of vibration and noise reducing.The present invention's
Another object is a kind of device for the vibration and noise for reducing switched reluctance machines of offer.
In order to solve the above technical problems, the present invention provides a kind of method for reducing switched reluctance machines vibration and noise, institute
The stator for stating switched reluctance machines is encapsulated as sealing cavity configuration, and the annular seal space seals the entirety in addition to the stator inner surface
Stationary part, cooling medium is packaged with the annular seal space；When the switched reluctance machines start, extract in the annular seal space
Gas；When the cooling medium seethes with excitement, stop pumping.
According to heat transfer theory, heated liquid, temperature rise, evaporation boiling when reaching boiling temperature, occur to be turned by liquid
It is changed into gaseous phase transformation, while produces bubble.It is specific to combine the targeted switched reluctance machines of the present invention, the boiling point of cooling medium
Temperature is inseparable with liquid pressure, and pressure more low boiling is lower.The above method is exactly that make use of this rule, in switching magnetic-resistance
During electric motor starting, the pressure of stator side seal cavity can be reduced rapidly by extracting the gas in annular seal space, and then is reduced and be packaged in
The boiling point of cooling medium therein, therefore cooling medium can be made to reach the medium boiling temperature after decompression at once, make its boiling production
Anger bubble.When cooling medium comes to life, it is not necessary to reduce pressure again, stop pumping, make electrical machine energy-saving operation, improve effect
Rate.
Preferably, extraction valve is set in the side wall of the annular seal space, aspiration pump is connected in the extraction valve outer end；When described
When switched reluctance machines start, the valve port of the extraction valve is opened, the gas in the annular seal space is extracted using the aspiration pump；
When the cooling medium seethes with excitement, the valve port of the extraction valve is closed, the aspiration pump is stopped pumping.
Preferably, when the switched reluctance machines start, two phase windings of the switched reluctance machines are powered；
When the cooling medium seethes with excitement, continue energization to the first phase winding in two phase winding, to the second phase winding therein
Power-off.
Preferably, the switched reluctance machines are provided with controls first phase winding, the of second phase winding respectively
One power circuit, second source circuit；
When the switched reluctance machines start, the first power circuit, second source circuit are closed successively, and to described
While second phase winding is powered, the valve port of the extraction valve is opened；
When the cooling medium seethes with excitement, while being automatically powered off to second phase winding, the pumping is closed automatically
The valve port of valve.
Preferably, connected in first power circuit the first power supply, the first power switch, first phase winding,
Connected in the second source circuit second source, second source switch, steam temperature sensitive switch, the extraction valve, described the
Two-phase winding.
In addition, the present invention also provides a kind of device for reducing switched reluctance machines vibration and noise, the switching magnetic-resistance electricity
The stator of machine is encapsulated as sealing cavity configuration, and the annular seal space seals the one-piece stator part in addition to the stator inner surface, institute
State and cooling medium is packaged with annular seal space；Described device includes the air extractor for connecting or disconnecting with the annular seal space, described to take out
Device of air extracts the gas of the annular seal space when the switched reluctance machines start, stops taking out when the cooling medium seethes with excitement
Gas.
Preferably, the air extractor includes the extraction valve of the side wall located at the annular seal space, and is connected to described take out
The aspiration pump of air valve outer end；When the switched reluctance machines start, the valve port of the extraction valve is opened, and the aspiration pump extracts
Gas in the annular seal space；When the cooling medium seethes with excitement, the valve port of the extraction valve is closed, and the aspiration pump stops taking out
Gas.
Preferably, described device also includes electric supply installation, and the electric supply installation is right when the switched reluctance machines start
Two phase windings of the switched reluctance machines are powered；When the cooling medium seethes with excitement, in two phase winding
One phase winding continues to be powered, the second phase winding therein is powered off.
Preferably, the electric supply installation includes the first electricity for controlling first phase winding, second phase winding respectively
Source circuit, second source circuit；
When the switched reluctance machines start, the first power circuit, second source circuit close successively, and described second
While phase winding is powered, the valve port of the extraction valve is opened；
When the cooling medium seethes with excitement, while second phase winding automatically powers off, the valve port of the extraction valve is certainly
It is dynamic to close.
Preferably, connected in first power circuit the first power supply, the first power switch, first phase winding, institute
State connected in second source circuit second source, second source switch, steam temperature sensitive switch, the extraction valve, second phase
Winding.
It is therefore, corresponding with this method to solve switched reluctance machines because above-mentioned control method has above-mentioned technique effect
Device should also be as that there is corresponding technique effect, will not be repeated here.
Brief description of the drawings
Fig. 1 is the structure principle chart of the pole switching reluctance motor of three-phase 6/4；
Fig. 2 is the structural representation of switched reluctance machines disclosed in ZL 201420153401.6；
Fig. 3 is a kind of embodiment of the method for reduction switched reluctance machines vibration and noise provided by the present invention
Structural representation；
Fig. 4 is the structural representation that two phase windings are powered.
Wherein, the corresponding relation between the reference in Fig. 1 and Fig. 2 and component names is：
Stator core 1；
Rotor 2；
Housing 3；
Connecting cylinder 4；
Annular seal space 5；
Cooling medium 6；
Condenser 7；
The corresponding relation between reference and component names in Fig. 3 and Fig. 4 is：
Extraction valve 101；
Second phase winding 102；
Second source switch 103；
Steam temperature sensitive switch 104；
Second source 105；
First phase winding 106.
Embodiment
The core of the present invention is provides a kind of method for the vibration and noise for reducing switched reluctance machines, and this method is in motor
The gas in annular seal space is extracted during starting, to reduce the boiling point of cooling medium, and then the cooling medium of seal stator intracavitary is existed
Switched reluctance machines seethe with excitement rapidly after starting, and further improve the effect of vibration and noise reducing.On this basis, another core of the invention
The heart is a kind of device for the vibration and noise for reducing switched reluctance machines of offer.
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real
Applying example, the present invention is described in further detail.
In a kind of embodiment, the present invention provides a kind of method for reducing switched reluctance machines vibration and noise,
The stator of switched reluctance machines is encapsulated as sealing cavity configuration, and annular seal space 5 seals the one-piece stator part in addition to stator inner surface,
Cooling medium 6 is packaged with annular seal space 5；When switched reluctance machines start, the gas in annular seal space 5 is extracted；When cooling medium 6
During boiling, stop pumping.
According to heat transfer theory, heated liquid, temperature rise, evaporation boiling when reaching boiling temperature, occur to be turned by liquid
It is changed into gaseous phase transformation, while produces bubble.It is specific to combine the targeted switched reluctance machines of the present invention, the boiling of cooling medium 6
Point temperature is inseparable with liquid pressure, and pressure more low boiling is lower.The above method is exactly that make use of this rule, in switch magnetic
When hindering electric motor starting, the pressure of the body of stator side annular seal space 5 can be reduced rapidly by extracting the gas in annular seal space 5, and then reduce envelope
Boiling point loaded on cooling medium 6 therein, therefore the horse back of cooling medium 6 can be made to reach the medium boiling temperature after decompression, make it
Boiling produces bubble.When cooling medium 6 comes to life, it is not necessary to reduce pressure again, stop pumping, transport electrical machine energy-saving
Row, improve efficiency.
Have in the above method to the mode of the pumped down of annular seal space 5 varied.
In a kind of concrete scheme, the above method can set extraction valve 101 in the side wall of annular seal space 5, outside extraction valve 101
End connection aspiration pump.When switched reluctance machines start, the valve port of extraction valve 101 is opened, aspiration pump is opened and extracts in annular seal space 5
Gas；When cooling medium 6 seethes with excitement, the valve port of extraction valve 101 is closed, aspiration pump is stopped pumping.
So, when switched reluctance machines start, the valve port of extraction valve 101 is opened, connection stator side annular seal space 5 and pumping
Pump, unlatching aspiration pump can extract the gas in the annular seal space 5, realize the decompression to annular seal space 5.When cooling medium 6 seethes with excitement, take out
The valve port of air valve 101 is closed, that is, is disconnected aspiration pump and annular seal space 5, and closing aspiration pump can terminate to be evacuated.
As can be seen here, in this way, simply, easily stator side seal can be depressured.It is contemplated that pumping drop
Press and not only limit this method, for example, it is also possible to a preset vacuum cavity being evacuated, vacuum cavity and switched reluctance machines
Annular seal space 5 by dividing plate connect or disconnect, when switched reluctance machines start, pull dividing plate, connection vacuum cavity with seal
Chamber 5, then the gas of annular seal space 5 can flow to vacuum cavity automatically, realize the pumped down to annular seal space 5.
Based on the above method, when switched reluctance machines start, two phase windings of switched reluctance machines are carried out
It is powered；When cooling medium 6 seethes with excitement, continue energization to the first phase winding 106 in two phase windings, to the second phase winding therein
102 power-off.
In this way, when switched reluctance machines start, it is larger that the energization of two phase windings can be such that stator winding produces rapidly
Electric current, stator core 1 is quickly produced stronger magnetic field, switching magnetic-resistance is exported larger torque drive
Load on rotor 2 accelerates rapidly, on the other hand can produce larger heat, accelerates cooling medium 6 in stator side annular seal space 5
Heating.As can be seen here, this method on the basis of pumped down, can further speed up the boiling speed of cooling medium 6.When cold
But after medium 6 seethes with excitement, two phase windings, which are powered, is changed to phase winding energization, can reduce the energy expenditure of switched reluctance machines, enter
And reduce use cost.
It should be noted that " the first phase winding ", " the second phase winding " are merely to distinguishing the two and naming, not here
Refer in particular to certain one be first, certain one be second, therefore, their appearance should not influence protection scope of the present invention.
Fig. 3 and Fig. 4 are refer to, Fig. 3 is the one of the method for reduction switched reluctance machines vibration and noise provided by the present invention
The structural representation of kind embodiment；Fig. 4 is the structural representation that two phase windings are powered.
In further scheme, as shown in Figure 3 and Figure 4, setting controls the first phase winding 106, the second phase winding 102 respectively
The first power circuit, second source circuit；When switched reluctance machines start, the first power circuit, the second electricity are closed successively
Source circuit, that is, the first phase winding is powered successively, the second winding is powered, and it is same being powered to the second phase winding 102
When, the valve port of opening extraction valve 101；It is automatic to close while being automatically powered off to the second phase winding 102 when cooling medium 6 seethes with excitement
Close the valve port of extraction valve 101.
In this way, pumped down is synchronously carried out when motor is opened, two phase windings are powered so that the shortest time
Inside reach cooling medium 6 to seethe with excitement, synchronously stopping pumped down, two phase windings energization automatic when cooling medium 6 seethes with excitement,
The very first time reduces unnecessary energy expenditure.As can be seen here, this method has higher automatization level, without whole artificial
Operation, and ensure that the accuracy of control process.
In specific scheme, as shown in Figure 3 and Figure 4, the first power supply of being connected in the first power circuit, the first power supply are opened
Close, the first phase winding 106, second source 105 of being connected in second source circuit, second source switch 103, steam temperature sensitive switch
104th, extraction valve 101, the second phase winding 102.
When switched reluctance machines are opened, first close the first power switch and the first phase winding 106 is powered, then close second
Power switch 103, now the bimetal leaf of steam temperature-sensing element be in normal position, then there is electric current to pass through switching magnetic-resistance in circuit
Second phase winding 102 of motor stator side and the electric-controlled switch of extraction valve 101, opening aspiration pump makes its pumping, while electricity
Machine starts rapidly in the case of the energization of two phase windings, generated heat.Moment, the pressure in stator side annular seal space 5 are greatly lowered, depending on
The temperature of sub- iron core 1 and winding raises quickly.When boiling temperature corresponding to the pressure that temperature is increased in annular seal space 5, cooling
Start to produce bubble in medium 6, when the quantity of steam in annular seal space 5 accumulates to a certain extent rapidly, cause steam temperature-sensing element
Bi-metal plate deformed, it is this deformation by lever principle promote second source switch 103 power-off, cut-out circuit in electric current,
Then extraction valve 101 is stopped, disconnects annular seal space 5 and aspiration pump, while the second phase winding 102 of stator powers off.Switch magnetic
Motor operation is hindered under the operating mode that a phase winding is powered, and the pressure in subsequent annular seal space 5 is gradually restored to normal pressure working condition.
From the above-mentioned course of work, the above method utilizes steam temperature-sensing element in the circuit of controlled motor winding,
The function of being automatically powered off when cooling medium 6 seethes with excitement is realized, so as to ensure that the automatization level in above-mentioned control method.And
And above-mentioned control method realizes the Synchronization Control being powered simultaneously to pumped down, winding in same circuit so that operation
Simply, conveniently, accuracy is higher for step.
It is contemplated that the above-mentioned Synchronization Control being powered to pumped down, winding can also use other modes, for example, can
Individually to set the first circuit of the first phase winding 106 of control, the second circuit of pumped down, the second phase winding of control
102 tertiary circuits being powered, wherein the first switch-dividing of second circuit series connection, extraction valve 101, tertiary circuit series connection second separate
Close, the second phase winding 102, one while two switch-dividings of control closure or the master switch of disconnection be set again in addition, and by steam
Temperature-sensing element is connected with master switch.The Synchronization Control that pumped down, winding are powered so can be also realized, simply this controlling party
Method is slightly more complex.
In addition, the present invention also provides a kind of device for reducing switched reluctance machines vibration and noise, switched reluctance machines
Stator is encapsulated as sealing cavity configuration, and annular seal space 5 seals the one-piece stator part in addition to stator inner surface, encapsulated in annular seal space 5
There is cooling medium 6；Device includes the air extractor for connecting or disconnecting with annular seal space 5, and air extractor starts when switched reluctance machines
When extract annular seal space 5 gas, when cooling medium 6 seethe with excitement stop be evacuated.
In specific scheme, air extractor includes the extraction valve 101 of the side wall located at annular seal space 5, and is connected to pumping
The aspiration pump of the outer end of valve 101；When switched reluctance machines start, the valve port of extraction valve 101 is opened, and aspiration pump extracts annular seal space 5
Interior gas；When cooling medium 6 seethes with excitement, the valve port of extraction valve 101 is closed, and aspiration pump stops pumping.
On the basis of such scheme, device also includes electric supply installation, and electric supply installation is right when switched reluctance machines start
Two phase windings of switched reluctance machines are powered；When cooling medium 6 seethes with excitement, to the first phase winding 106 in two phase windings
Continue to be powered, the second phase winding 102 therein is powered off.
In another embodiment, electric supply installation includes controlling the first phase winding 106, the second phase winding respectively
102 the first power circuit, second source circuit；When switched reluctance machines start, the first power circuit, second source circuit
Close successively, and while the energization of the second phase winding 102, the valve port of extraction valve 101 is opened；When cooling medium 6 seethes with excitement, second
While phase winding 102 automatically powers off, the valve port of extraction valve 101 is closed automatically.
In further scheme, the first power supply of being connected in the first power circuit, the first power switch, the first phase winding
106, second source 105 of connecting in second source circuit, second source switch 103, steam temperature sensitive switch 104, extraction valve 101,
Second phase winding 102.
It is therefore, corresponding with this method to solve switched reluctance machines because above-mentioned control method has above-mentioned technique effect
Device should also be as that there is corresponding technique effect, will not be repeated here.
A kind of method, apparatus for reducing switched reluctance machines vibration and noise provided by the present invention has been carried out in detail above
It is thin to introduce.Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help the method and its core concept for understanding the present invention.It should be pointed out that the ordinary skill for the art
For personnel, under the premise without departing from the principles of the invention, some improvement and modification, these improvement can also be carried out to the present invention
Also fallen into modification in the protection domain of the claims in the present invention.
Claims (8)
1. a kind of method for reducing switched reluctance machines vibration and noise, the stator of the switched reluctance machines are encapsulated as annular seal space
Structure, the annular seal space (5) seal the one-piece stator part in addition to the stator inner surface, encapsulated in the annular seal space (5)
There is cooling medium (6)；Characterized in that, when the switched reluctance machines start, the gas in the annular seal space (5) is extracted；
When the cooling medium (6) seethes with excitement, stop pumping；Extraction valve (101) is set in the side wall of the annular seal space (5), described
Extraction valve (101) outer end connects aspiration pump；When the switched reluctance machines start, the valve port of the extraction valve (101) is opened,
Open the gas in the aspiration pump extraction annular seal space (5)；When the cooling medium (6) seethes with excitement, the pumping is closed
The valve port of valve (101), the aspiration pump is set to stop pumping.
2. the method according to claim 1 for reducing switched reluctance machines vibration and noise, it is characterised in that opened when described
When closing reluctance motor starting, two phase windings of the switched reluctance machines are powered；When the cooling medium (6) seethes with excitement
When, the first phase winding (106) in two phase winding is continued to be powered, the second phase winding (102) therein is powered off.
3. the method according to claim 2 for reducing switched reluctance machines vibration and noise, it is characterised in that difference is set
Control first phase winding (106), the first power circuit of second phase winding (102), second source circuit；
When the switched reluctance machines start, the first power circuit, second source circuit are closed successively, and to described second
While phase winding (102) is powered, the valve port of the extraction valve (101) is opened；When the cooling medium (6) seethes with excitement, to institute
While stating the second phase winding (102) and automatically power off, the valve port of the extraction valve (101) is closed automatically.
4. the method according to claim 3 for reducing switched reluctance machines vibration and noise, it is characterised in that described the
Connected in one power circuit the first power supply, the first power switch, first phase winding (106), in the second source circuit
It is middle series connection second source (105), second source switch (103), steam temperature sensitive switch (104), the extraction valve (101), described
Second phase winding (102).
5. a kind of device for reducing switched reluctance machines vibration and noise, the stator of the switched reluctance machines are encapsulated as annular seal space
Structure, the annular seal space (5) seal the one-piece stator part in addition to the stator inner surface, encapsulated in the annular seal space (5)
There is cooling medium (6)；Characterized in that, described device includes the air extractor for connecting or disconnecting with the annular seal space (5), it is described
Air extractor extracts the gas of the annular seal space (5) when the switched reluctance machines start, when the cooling medium (6) seethes with excitement
When stop pumping；
The air extractor includes the extraction valve (101) of the side wall located at the annular seal space (5), and is connected to the extraction valve
(101) aspiration pump of outer end；
When the switched reluctance machines start, the valve port of the extraction valve (101) is opened, and the aspiration pump extracts the sealing
Gas in chamber (5)；When the cooling medium (6) seethes with excitement, the valve port of the extraction valve (101) is closed, and the aspiration pump stops
Only it is evacuated.
6. the device according to claim 5 for reducing switched reluctance machines vibration and noise, it is characterised in that described device
Also include electric supply installation, the electric supply installation is when the switched reluctance machines start, to the two-phase of the switched reluctance machines
Winding is powered；When the cooling medium (6) seethes with excitement, the first phase winding (106) in two phase winding is continued to lead to
Electricity, the second phase winding (102) therein is powered off.
7. the device according to claim 6 for reducing switched reluctance machines vibration and noise, it is characterised in that the power supply
Device includes controlling first phase winding (106), the first power circuit of second phase winding (102), the second electricity respectively
Source circuit；
When the switched reluctance machines start, the first power circuit, second source circuit close successively, and second phase around
While group (102) is powered, the valve port of the extraction valve (101) is opened；When the cooling medium (6) seethes with excitement, described second
While phase winding (102) automatically powers off, the valve port of the extraction valve (101) is closed automatically.
8. the device according to claim 7 for reducing switched reluctance machines vibration and noise, it is characterised in that described first
Connect in power circuit the first power supply, the first power switch, first phase winding (106), gone here and there in the second source circuit
Join second source (105), second source switch (103), steam temperature sensitive switch (104), the extraction valve (101), described second
Phase winding (102).
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| CN201510033024.1A CN104578469B (en) | 2015-01-22 | 2015-01-22 | A kind of method, apparatus for reducing switched reluctance machines vibration and noise |
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| CN201510033024.1A CN104578469B (en) | 2015-01-22 | 2015-01-22 | A kind of method, apparatus for reducing switched reluctance machines vibration and noise |
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| CN104578469B true CN104578469B (en) | 2017-11-10 |
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| EP1241773B1 (en) * | 2001-03-14 | 2012-09-12 | Nissan Motor Co., Ltd. | Rotating electrical machine with air-gap sleeve |
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| CN202034873U (en) * | 2011-03-18 | 2011-11-09 | 肖富凯 | Sealing device and condenser for evaporative cooling asynchronous motor stator |
| CN202289496U (en) * | 2011-11-02 | 2012-07-04 | 重庆现代石油（集团）有限公司 | Rolling oil regeneration system and rolling oil evaporator |
| CN102594008A (en) * | 2012-03-06 | 2012-07-18 | 中国科学院长春光学精密机械与物理研究所 | Energy storage device of vacuum super-conducting magnetic suspension integrated flywheel |
| CN106230143B (en) * | 2014-03-31 | 2019-02-12 | 北京建筑大学 | A kind of switched reluctance machines |
| CN203774890U (en) * | 2014-03-31 | 2014-08-13 | 北京建筑大学 | Switch magnetic resistance motor |
| CN103840573B (en) * | 2014-03-31 | 2017-04-19 | 北京建筑大学 | Stator seal structure of switched reluctance motor |
| CN204316202U (en) * | 2015-01-22 | 2015-05-06 | 北京建筑大学 | A kind of device reducing switched reluctance machines vibration and noise |
-
2015
- 2015-01-22 CN CN201510033024.1A patent/CN104578469B/en active Active
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