CN206332630U - A kind of switched reluctance machines and its braking circuit - Google Patents
A kind of switched reluctance machines and its braking circuit Download PDFInfo
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- CN206332630U CN206332630U CN201621286656.5U CN201621286656U CN206332630U CN 206332630 U CN206332630 U CN 206332630U CN 201621286656 U CN201621286656 U CN 201621286656U CN 206332630 U CN206332630 U CN 206332630U
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Abstract
The utility model belongs to motor braking technical field, and there is provided a kind of switched reluctance machines and its braking circuit.In the utility model, by using including first switch module, second switch module, time control module, operating voltage generation module and the braking circuit for braking direct current generation module, so that when the on-off circuit being connected with the braking circuit is in the first conducting state, second switch module is in the first conducting state, so that braking circuit enters driving condition；When on-off circuit is in the second conducting state, first switch module enters the first conducting state, second switch module enters the second conducting state, so that braking circuit enters on-position, and then cause switched reluctance machines braking, braking circuit can set different braking times according to actual needs, and security reliability is high, solve existing SRM and exist because of braking human body or the problem of be highly prone to damage using SRM equipment caused by time-consuming.
Description
Technical field
The utility model belongs to motor braking technical field, more particularly to a kind of switched reluctance machines and its braking circuit.
Background technology
The rotor of switched reluctance machines (Switched Reluctance Motor, SRM) is using common silicon steel plate stacking
Into, have the advantages that simple in construction, reliable, with low cost, power factor (PF) is high, and SRM without brush commutation while rotor
Permanent magnet need not be installed, it make it that SRM has good development prospect.
However, in SRM some application scenarios, such as meeting emergency using SRM equipment needs rapid braking, to prevent right
When human body either causes damage using SRM equipment, because SRM rotors do not have permanent magnet, without cogging torque, therefore, SRM
If necessary to be stopped from high speed, can only be braked by the frictional force of armature spindle, the time-consuming length of the process, easily cause human body or
Person is sustained damage using SRM equipment.
In summary, existing SRM exist because braking caused by time-consuming human body or using SRM equipment easily by
To the problem of damage.
Utility model content
The purpose of this utility model is to provide a kind of switched reluctance machines and its braking circuit, it is intended to solved existing
SRM exist because braking human body or equipment using SRM are highly prone to damage caused by time-consuming the problem of.
The utility model is achieved in that a kind of braking circuit of switched reluctance machines, the braking circuit and switch
Circuit, the switched reluctance machines and driver connection, the first winding of the driver and the switched reluctance machines and
Second winding is connected, and the braking circuit includes：
First switch module, second switch module, time control module, operating voltage mould generation module and braking direct current
Electric generation module；
The input of the on-off circuit and the first interface of external power source are connected, the first output end of the on-off circuit
It is connected with the first input end of the driver, the second input of the driver connects with the second interface of the external power source
Connect, the second output end of the on-off circuit and the first input end and the braking direct current of the operating voltage generation module
The first input end connection of generation module；Second input of the operating voltage generation module and the 3rd of the external power source the
Interface and the braking direct current generation module the second input connection, the output end of the operating voltage generation module with
First input end, the first input end of the time control module and the second switch module of the first switch module
First input end connection；First output end of the braking direct current generation module and the first switch module it is second defeated
Enter end connection, the second input of the second output end and the second switch module of the braking direct current generation module connects
Connect；First output end of the first switch module is connected with the second input of the time control module, and described first opens
The second output end for closing module is connected with the 3rd input of the second switch module；The first of the second switch module is defeated
Go out end and be connected to ground, the 4th input and the driving of the second switch module altogether with the output end of the time control module
The first output end connection of device, the 5th input of the second switch module is connected with the second output end of the driver,
Second output end of the second switch module is connected with the first end of the tertiary winding of the switched reluctance machines, and described second
3rd output end of switch module is connected with the second end of the tertiary winding；
When the on-off circuit is in the first conducting state, the second switch module enters the first conducting state, with
The tertiary winding of the switched reluctance machines is set to be connected with the driver, the driver receives the external power source input
Alternating current, and the switched reluctance machines operation according to the exchange electric drive；When the on-off circuit is in the second conducting shape
During state, the first switch module enters the first conducting state, and the braking direct current generation module receives the alternating current, and
Direct current is braked to the first switch module according to the exchange electricity output, the first switch module is by the braking direct current
Electricity output is to the second switch module；The operating voltage generation module receives the alternating current, and according to the alternating current
Output services voltage is to the first switch module, time control module and second switch module；The time control module
Worked according to the operating voltage, and when the delay time of the time control module is not reached, the first switch module
First conducting state is maintained, the second switch module is switched to according to the operating voltage by first conducting state
Second conducting state, and by the tertiary winding of the braking direct current electricity output to the switched reluctance machines, so that the switch
Reluctance motor starts braking according to the braking direct current, when the delay time of the time control module is reached, and described the
One switch module switches to the second conducting state according to the operating voltage by first conducting state, and it is described to stop output
Direct current is braked to the second switch module, so that the switched reluctance machines stop braking.
Another object of the present utility model also resides in a kind of switched reluctance machines of offer, and the switched reluctance machines include upper
The braking circuit stated.
In the utility model, by using including first switch module, second switch module, time control module, work
Make voltage generating module and brake the braking circuit of direct current generation module so that when the switch electricity being connected with the braking circuit
When road is in the first conducting state, second switch module enters the first conducting state, so that the tertiary winding of switched reluctance machines
It is connected with driver, driver receives the alternating current of external power source input, and is run according to alternating current driving switch reluctance motor；
When on-off circuit is in the second conducting state, first switch module enters the first conducting state, brakes direct current generation module
Alternating current is received, and direct current is braked to first switch module according to exchange electricity output, first switch module will brake direct current
Export to second switch module；Operating voltage generation module receives alternating current, and according to alternating current output services voltage to first
Switch module, time control module and second switch module；Time control module works according to operating voltage, and when time control
When the delay time of molding block is not reached, first switch module maintains the first conducting state, and second switch module is according to work electricity
Pressure switches to the second conducting state by the first conducting state, and by brake direct current electricity output to switched reluctance machines the 3rd around
Group, so that switched reluctance machines start braking according to braking direct current, when the delay time of time control module is reached, first
Switch module switches to the second conducting state according to operating voltage by the first conducting state, and stops output braking direct current to the
Two switch modules, so that switched reluctance machines stop braking so that braking circuit can set different brakings according to actual needs
Time, security reliability is high, solves existing SRM and exists because of braking human body or setting using SRM caused by time-consuming
The problem of for damage is highly prone to.
Brief description of the drawings
The modular structure signal of the braking circuit for the switched reluctance machines that Fig. 1 is provided by the embodiment of the utility model one
Figure；
Fig. 2 is the modular structure signal of the braking circuit for the switched reluctance machines that another embodiment of the utility model is provided
Figure；
Fig. 3 is the circuit structure signal of the braking circuit for the switched reluctance machines that the embodiment of the utility model one is provided
Figure.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
Realization of the present utility model is described in detail below in conjunction with specific accompanying drawing：
Fig. 1 shows the modular structure of the braking circuit for the switched reluctance machines that the embodiment of the utility model one is provided,
For convenience of description, the part related to the utility model embodiment is illustrate only, details are as follows：
As shown in figure 1, the utility model embodiment provides the braking circuits 1 of switched reluctance machines and on-off circuit 2, opened
Close reluctance motor 3 and driver 4 is connected, wherein, the first winding and the second winding of driver 4 and switched reluctance machines 3 connect
Connect.
Further, the braking circuit 1 also includes first switch module 10, second switch module 11, time control module
12nd, operating voltage generation module 13 and braking direct current generation module 14.
Wherein, the input of on-off circuit 2 is connected with the first interface of external power source (not shown), on-off circuit 2
The first output end be connected with the first input end of driver 4, the second input and the second interface of external power source of driver 4
Connection, the second output end of on-off circuit 2 produces mould with the first input end of operating voltage generation module 13 and braking direct current
The first input end connection of block 14；Second input of operating voltage generation module 13 and the 3rd interface and system of external power source
The second input connection of dynamic direct current generation module 14, output end and the first switch module 10 of operating voltage generation module 13
First input end, the first input end connection of the first input end of time control module 12 and second switch module 11；System
First output end of dynamic direct current generation module 14 is connected with the second input of first switch module 10, and braking direct current is produced
Second output end of module 14 is connected with the second input of second switch module 11；First output end of first switch module 10
It is connected with the second input of time control module 12, the second output end and the second switch module 11 of first switch module 10
3rd input is connected；First output end of second switch module 11 is connected to ground altogether with the output end of time control module 13, the
4th input of two switch modules 11 is connected with the first output end of driver 4, the 5th input of second switch module 11
It is connected with the second output end of driver 4, the second output end of second switch module 11 and the tertiary winding of switched reluctance machines 3
First end connection, the second end of the 3rd output end of second switch module 11 and the tertiary winding is connected.
Specifically, when on-off circuit 2 is in the first conducting state, second switch module 11 enters the first conducting state,
So that the tertiary winding of switched reluctance machines 3 is connected with driver 4, driver 4 receives the alternating current of external power source input, and root
Run according to alternating current driving switch reluctance motor 3；When on-off circuit 2 is in the second conducting state, first switch module 10 is entered
Enter the first conducting state, braking direct current generation module 14 receives alternating current, and direct current is braked to the according to exchange electricity output
One switch module 10, first switch module 10 will brake direct current electricity output to second switch module 11；Operating voltage generation module
13 receive alternating current, and according to alternating current output services voltage to first switch module 10, time control module 12 and second
Switch module 11；Time control module 12 works according to operating voltage, and when the delay time of time control module 12 is not reached
When, first switch module 10 maintains the first conducting state, and second switch module 11 is cut according to operating voltage by the first conducting state
The second conducting state is shifted to, and the tertiary winding of the direct current electricity output to switched reluctance machines 3 will be braked, so that switched reluctance machines
3 start braking according to braking direct current, and when the delay time of time control module 12 is reached, first switch module 10 is according to work
Make voltage and the second conducting state switched to by the first conducting state, and stop output braking direct current to second switch module 11,
So that switched reluctance machines 3 stop braking.
It should be noted that the conducting state of on-off circuit 2 in the utility model embodiment, first switch module 10
The conducting state of conducting state and second switch module 11 will elaborate in follow-up physical circuit, no longer go to live in the household of one's in-laws on getting married herein
State.
Further, as the preferred embodiment of the utility model one, as shown in Fig. 2 braking circuit 1 also includes discharge module
15, the first input end of discharge module 15 is connected with the first input end of first switch module 10, and the second of discharge module 15 is defeated
Enter end to be connected with the charging end of time control module 12, the output end of discharge module 12 connects with the output end of time control module 12
Connect.
Wherein, when first switch module 10 switches to the second conducting state by the first conducting state, the work of discharge module 15
Make, and discharge process is carried out to time control module 12；It should be noted that in the utility model embodiment, discharge module
The discharge time of 15 control time control modules 12, so that ensure the time consistency that switched reluctance machines 3 are braked every time, Yi Mianshi
Between control module 12 insufficient electric discharge on braking time produce influence.
Further, as the preferred embodiment of the utility model one, as shown in figure 3, discharge module 15 includes first resistor
R1, second resistance R2,3rd resistor R3 and first switch element Q1.
Wherein, first resistor R1 first end be discharge module 15 first input end, first resistor R1 the second end with
Second resistance R2 first end and first switch element Q1 control end connection, second resistance R2 the second end and first switch
Element Q1 output end connects the output end to form discharge module 15 altogether, and first switch element Q1 input is with 3rd resistor R3's
Second end is connected, and 3rd resistor R3 first end is the second input of discharge module 15.
It should be noted that in the utility model embodiment, first switch element Q1 is made up of p-type triode, the p-type
The base stage of triode is first switch element Q1 control end, and the emitter stage of the p-type triode is first switch element Q1
Input, the colelctor electrode of the p-type triode is first switch element Q1 output end.
Further, as the preferred embodiment of the utility model one, as shown in figure 3, time control module 12 includes the 4th
Resistance R4, charging capacitor C1, the 5th resistance R5 and second switch element Q2.
Wherein, the 4th resistance R4 first end is the first input end of time control module 12, the second of the 4th resistance R4
When end and the control end of charging capacitor C1 first end, the 5th resistance R5 first end and second switch element Q2 connect to be formed altogether
Between control module 12 charging end, charging capacitor C1 the second end and the 5th resistance R5 the second end and second switch element Q2
Output end connect the output end to form time control module 12 altogether, second switch element Q2 input is time control module 12
The second input.
It should be noted that in the utility model embodiment, second switch element Q2 is made up of N-type FET, the N
The grid of type FET is second switch element Q2 control end, and the drain electrode of the N-type FET is second switch element Q2
Input, the source electrode of the N-type FET is second switch element Q2 output end.
Further, as the preferred embodiment of the utility model one, as shown in figure 3, operating voltage generation module 13 includes
First diode D1, the second diode D2 and Switching Power Supply 130.
Wherein, the first diode D1 anode is the first input end of operating voltage generation module 13, the second diode D2
Anode be operating voltage generation module 13 the second input, the first diode D1 negative electrode and the first of Switching Power Supply 130
Input is connected, and the second diode D2 negative electrode is connected with the second input of Switching Power Supply 130, and the first of Switching Power Supply 130
Output end is the output end of operating voltage generation module 13, the second output head grounding of Switching Power Supply 130.
It should be noted that in the utility model embodiment, Switching Power Supply 130 can be real using existing on-off circuit
It is existing, it is not specifically limited herein.
Further, as the preferred embodiment of the utility model one, as shown in figure 3, first switch module 10 includes the 3rd
Diode D3 and single-pole double-throw relay J1.
Wherein, the 3rd diode D3 negative electrode connects to form first switch mould altogether with single-pole double-throw relay J1 first end 1
The first input end of block 10, single-pole double-throw relay J1 the second end 2 is the second input of first switch module 10, the three or two
Pole pipe D3 anode and the 3rd end 3 of single-pole double-throw relay connect the first output end to form first switch module 10, hilted broadsword altogether
Double-throw relay J1 the first contact A is the second output end of first switch module 10.
It should be noted that single-pole double-throw relay J1 also includes the second contact B.Understood with reference to Fig. 1 and Fig. 3, work as hilted broadsword
When the double-throw relay J1 contact A of first end 1 and first is connected, single-pole double-throw relay J1 is the first conducting state, i.e., first
Switch module 10 is the first conducting state；When the single-pole double-throw relay J1 contact B of first end 1 and second is connected, hilted broadsword is double
It is that two conducting states, i.e. first switch module 10 are the second conducting state to throw relay J1；In addition, in the utility model embodiment
In, the 3rd diode D3 and single-pole double-throw relay J1 winding reverse parallel connection so that when single-pole double-throw relay J1 winding
During power-off, the 3rd diode D3 can provide continuous current circuit for single-pole double-throw relay J1 windings.
Further, as the preferred embodiment of the utility model one, as shown in figure 3, second switch module 11 includes the 4th
Diode D4, the 6th resistance R6 and dpdt relay J2.
Wherein, the 6th resistance R6 first end is the first input end of second switch module 11, the second of the 6th resistance R6
End connect altogether with the 4th diode D4 negative electrode and dpdt relay J2 first end 1, the 4th diode D4 anode and
Dpdt relay J2 the second end 2 connects the first output end to form second switch module 11 altogether, dpdt relay
First contact B1, the second contact B2, the 3rd contact A 1 and the 4th contact A 2 are respectively the second input of second switch module 11
End, the 3rd input, the 4th input and the 5th input, dpdt relay J2 the 3rd end 3 and the 4th end 4 are distinguished
For the second output end and the 3rd output end of second switch module 11.
It should be noted that being understood with reference to Fig. 1 and Fig. 3, when dpdt relay J2 the 3rd end 3 and the 4th contact A 2
Connect, when the 4th end 4 and the connection of the 3rd contact A 1, dpdt relay J2 is the first conducting state, i.e. second switch module
11 be the first conducting state；When dpdt relay J2 the 3rd end 3 and the second contact B2 are connected, the 4th end 4 and first is touched
When point B1 is connected, dpdt relay J2 is that the second conducting state, i.e. second switch module 11 are the second conducting state；This
Outside, in the utility model embodiment, the 4th diode D4 and dpdt relay J2 winding reverse parallel connection so that when double
During dpdt double-pole double-throw (DPDT) relay J2 winding power-off, the 4th diode D4 can provide afterflow for dpdt relay J2 windings and return
Road.
Further, as the preferred embodiment of the utility model one, as shown in figure 3, on-off circuit 2 is opened including single-pole double throw
Close K1.
Wherein, single-pole double-throw switch (SPDT) K1 first end 1 is the input of on-off circuit 2, the first of single-pole double-throw switch (SPDT) K1
Contact A is the first output end of on-off circuit 2, and single-pole double-throw switch (SPDT) K1 the second contact B exports for the second of on-off circuit 2
End.
It should be noted that being understood with reference to Fig. 1 and Fig. 3, when single-pole double-throw switch (SPDT) K1 first end 1 and the first contact A connect
When logical, single-pole double-throw switch (SPDT) K1 is in the first conducting state, i.e. on-off circuit 2 and is in the first conducting state；When single-pole double throw is opened
When the contact B of first end 1 and second for closing K1 is connected, single-pole double-throw switch (SPDT) K1 is in the second conducting state, i.e. on-off circuit 2
Second conducting state.
Further, as the preferred embodiment of the utility model one, as shown in Figure 3, it is characterised in that braking direct current production
Raw module 14 includes voltage transformation unit 140 and rectification unit 141.
Wherein, the first input end of voltage transformation unit 140 and the second input are respectively braking direct current generation module 14
First input end and the second input, the first output end of voltage transformation unit 140 and the second output end respectively with rectification unit 141
First input end and the connection of the second input, the first output end and the second output end of rectification unit 141 are respectively braking direct current
First output end of electric generation module 14 and the second output end.
Specifically, voltage transformation unit 140 receives alternating current, and alternating current is converted into low-voltage alternating-current electricity output to rectification unit
141, rectification unit 141 carries out output braking direct current after rectification processing to low-voltage AC.
Further, as the preferred embodiment of the utility model one, as shown in figure 3, voltage transformation unit 140 is by transformer TX groups
Into transformer TX is mainly the high-voltage alternating input for inputting external power source and is converted to low-voltage AC, and rectification unit 141 is by complete
Bridge rectifier bridge U1 is constituted, and the transformer TX low-voltage ACs exported are mainly converted to low-voltage DC by it.
The work of the braking circuit 1 provided below by taking the circuit structure shown in Fig. 3 as an example the utility model embodiment
Principle does specific bright, and details are as follows：
When single-pole double-throw switch (SPDT) K1 first end 1 is connected with its first contact A, drive circuit (driver 4 and switch magnetic
Hinder motor 3) on electricity, braking circuit 1 powers off.Specifically, when single-pole double-throw switch (SPDT) K1 first end 1 is connected with its first contact A
When, transformer TX does not work without input, braking circuit 1, now dpdt relay J2 the 3rd end 3 and its 4th contact A 2
Connect, the 4th end 4 connects with its 3rd contact A 1, driver 4 receives the alternating current that external power source is exported, and to switching magnetic-resistance
First winding of motor 3 and the second winding are powered, and by dpdt relay J2 to switched reluctance machines 3 the 3rd around
Group is powered, and realizes the driving of switched reluctance machines 3.
When single-pole double-throw switch (SPDT) K1 first end 1 is connected with its second contact B, driver 4 is without input, i.e. drive circuit
Power-off, and now transformer TX receives the alternating current of external power source output with Switching Power Supply 130, i.e., it is electric on braking circuit.
Switching Power Supply according to the alternating current produce 15V direct current, and using the 15V direct current to dpdt relay J2 around
Group is powered so that dpdt relay J2 switches to contact B1 and contact B2 respectively by contact A 1 and contact A 2, and then causes
Braking circuit 1 is connected with the tertiary winding of switched reluctance machines 3, and switched reluctance machines 3 enter on-position；It is noticeable
It is that single-pole double-throw switch (SPDT) K1 conducting state can control dpdt relay J2 conducting state, and then control the tertiary winding
It is connected with one of circuit of drive circuit and braking circuit 1, i.e. single-pole double-throw switch (SPDT) K1 is used as drive circuit and braking electricity
Switching switch between road 1, it can ensure that any time only one of which circuit works.
Specifically, after electricity on braking circuit 1, the high-voltage alternating input of reception is converted to low-voltage alternating-current by transformer TX
Electricity, then by rectifier bridge U1 rectifications, so that electric energy, i.e. brake voltage are provided for the braking of switched reluctance machines 3, wherein, system
The big I of dynamic voltage changes corresponding transformer according to the actual requirements.The 15V direct currents that Switching Power Supply 130 is produced are double for hilted broadsword
Throw relay J1, dpdt relay J2 and time control module 12 provides what operating voltage, i.e. Switching Power Supply 130 were exported
15V DC voltages as dpdt relay J2 winding power from operating voltage to dpdt relay J2 so that it is double
Dpdt double-pole double-throw (DPDT) relay J2 the 3rd end 3 and its second contact B2 is connected, and the 4th end 4 and its first contact B1 is connected, and is switched
Power supply 130 export 15V DC voltages as single-pole double-throw relay J1 operating voltage to single-pole double-throw relay J1 around
Group is powered so that single-pole double-throw relay J1 the 3rd end is connected with its first contact A, and now stalling current passes through single-pole double throw
Relay J1, dpdt relay J2 are connected with the tertiary winding of switched reluctance machines 3, and switched reluctance machines 3 start braking,
I.e. when a certain phase winding of switched reluctance machines 3 leads to direct current, the phase winding will produce electromagnetic force, and rotor is due to electromagnetic force
Effect, be finally stabilized in fixed position, i.e., switched reluctance machines 3 realize braking.
15V DC voltages start to be charged to charging capacitor C1 by the 4th resistance R4 simultaneously, charging capacitor when initial
C1 voltage is 0V, and charging current charges by the 4th resistance R4 to charging capacitor C1, and the voltage at charging capacitor C1 ends will gradually
Rise, connects, the 5th R5 can be limited as divider resistance herein after the 5th resistance R5 is in parallel with charging capacitor C1 with the 4th resistance R4
Second switch element Q2 grid terminal voltages processed.When the voltage at charging capacitor C1 two ends is not up to second switch element Q2 threshold value electricity
During pressure, second switch element Q2 shut-offs.Single-pole double-throw relay J1 the 3rd end keeps the state being connected with the first contact A, system
Dynamic circuit 1 continues to brake switched reluctance machines 3；When the voltage at charging capacitor C1 two ends reaches second switch element Q2's
During threshold voltage, second switch element Q2 conductings so that single-pole double-throw relay J1 winding and the second switch element Q2 shapes
Into energization path, single-pole double-throw relay J1 is switched to contact B by contact A, now brake circuit open circuit, stalling current cut-off,
Complete braking maneuver.It is worth noting that, in the utility model embodiment, the braking execution time can be by changing the 4th resistance
R4 and charging capacitor C1 parameter setting, the speed of braking are then realized by the transformer TX from suitable parameters.
When braking circuit 1 is powered off, in order to ensure charging capacitor C1 discharges rapidly, in case the next braking time of influence, right
This devises charging capacitor C1 quick discharging circuit.Specifically, i.e. when braking circuit 1 is powered off, what Switching Power Supply 130 was provided
15V DC voltages disappear, and now first resistor R1 enters with exporting low level to first switch element Q1 after second resistance R2 partial pressures
And make it that first switch element Q1 is open-minded, charging capacitor C1 forms discharge loop by 3rd resistor R3, first switch element Q1,
The electric charge at charging capacitor C1 two ends is able to release rapidly, so as to ensure the time consistency braked every time；Wherein, discharge time is by
Three resistance R3 resistance value is determined.
Further, the utility model additionally provides a kind of switched reluctance machines, and the switched reluctance machines include braking electricity
Braking circuit 1 in road 1, the switched reluctance machines provided due to the utility model embodiment and the phase of braking circuit 1 shown in Fig. 3
Together, therefore, the concrete operating principle for the switched reluctance machines that the utility model embodiment is provided, is referred to previously with regard to Fig. 3
Detailed description, here is omitted.
In the utility model embodiment, controlled by using including first switch module 10, second switch module 11, time
The braking circuit 1 of molding block 12, operating voltage generation module 13 and braking direct current generation module 14 so that when with the braking
When the on-off circuit 2 that circuit 1 is connected is in the first conducting state, second switch module 11 enters the first conducting state, so as to open
The tertiary winding for closing reluctance motor 3 is connected with driver 4, and driver 4 receives the alternating current of external power source input, and according to exchange
Electric drive switched reluctance machines 3 are run；When on-off circuit 2 is in the second conducting state, first switch module 10 enters first
Conducting state, braking direct current generation module 14 receives alternating current, and brakes direct current to first switch according to exchange electricity output
Module 10, first switch module 10 will brake direct current electricity output to second switch module 11；Operating voltage generation module 13 is received
Alternating current, and according to alternating current output services voltage to first switch module 10, time control module 12 and second switch mould
Block 11；Time control module 12 works according to operating voltage, and when the delay time of time control module 12 is not reached, first
Switch module 10 maintains the first conducting state, and second switch module 11 switches to second according to operating voltage by the first conducting state
Conducting state, and the tertiary winding of the direct current electricity output to switched reluctance machines 3 will be braked, so that switched reluctance machines 3 are according to system
Dynamic direct current starts braking, and when the delay time of time control module 12 is reached, first switch module 10 is according to operating voltage
Second conducting state is switched to by the first conducting state, and stops output braking direct current to second switch module 11, so as to open
Close reluctance motor 3 and stop braking so that braking circuit 1 can set different braking times, security reliability according to actual needs
Height, solve existing SRM exist because braking caused by time-consuming human body or equipment using SRM be highly prone to damage
Problem.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of braking circuit of switched reluctance machines, it is characterised in that the braking circuit and on-off circuit, the switch magnetic
Motor and driver connection are hindered, the driver is connected with the first winding and the second winding of the switched reluctance machines, institute
Stating braking circuit includes：
First switch module, second switch module, time control module, operating voltage mould generation module and braking direct current production
Raw module；
The input of the on-off circuit and the first interface of external power source are connected, the first output end of the on-off circuit and institute
The first input end connection of driver is stated, the second input of the driver is connected with the second interface of the external power source,
Second output end of the on-off circuit and the first input end and the braking direct current of the operating voltage generation module are produced
The first input end connection of raw module；Second input of the operating voltage generation module connects with the 3rd of the external power source
The second input connection of mouth and the braking direct current generation module, the output end of the operating voltage generation module and institute
State the first input end, the first input end of the time control module and the second switch module of first switch module
First input end is connected；First output end of the braking direct current generation module and the second input of the first switch module
End connection, the second output end of the braking direct current generation module is connected with the second input of the second switch module；
First output end of the first switch module is connected with the second input of the time control module, the first switch mould
Second output end of block is connected with the 3rd input of the second switch module；First output end of the second switch module
Ground, the 4th input and the driver of the second switch module are connected to altogether with the output end of the time control module
First output end is connected, and the 5th input of the second switch module is connected with the second output end of the driver, described
Second output end of second switch module is connected with the first end of the tertiary winding of the switched reluctance machines, the second switch
3rd output end of module is connected with the second end of the tertiary winding；
When the on-off circuit is in the first conducting state, the second switch module enters the first conducting state, so that institute
The tertiary winding for stating switched reluctance machines is connected with the driver, and the driver receives the exchange of the external power source input
Electricity, and the switched reluctance machines operation according to the exchange electric drive；When the on-off circuit is in the second conducting state,
The first switch module enters the first conducting state, and the braking direct current generation module receives the alternating current, and according to
The exchange electricity output brakes direct current to the first switch module, and the first switch module is defeated by the braking direct current
Go out to the second switch module；The operating voltage generation module receives the alternating current, and according to the exchange electricity output
Operating voltage is to the first switch module, time control module and second switch module；The time control module according to
The operating voltage work, and when the delay time of the time control module is not reached, the first switch module is maintained
First conducting state, the second switch module switches to second according to the operating voltage by first conducting state
Conducting state, and by the tertiary winding of the braking direct current electricity output to the switched reluctance machines, so that the switching magnetic-resistance
Motor starts braking according to the braking direct current, and when the delay time of the time control module is reached, described first opens
Close module and the second conducting state is switched to by first conducting state according to the operating voltage, and stop exporting the braking
Direct current is to the second switch module, so that the switched reluctance machines stop braking.
2. braking circuit according to claim 1, it is characterised in that the braking circuit also includes discharge module, described
The first input end of discharge module is connected with the first input end of the first switch module, the second input of the discharge module
End is connected with the charging end of the time control module, the output of the output end of the discharge module and the time control module
End connection；
When the first switch module switches to second conducting state by first conducting state, the discharge module
Work, and discharge process is carried out to the time control module.
3. braking circuit according to claim 2, it is characterised in that the discharge module includes first resistor, the second electricity
Resistance, 3rd resistor and first switch element；
The first end of the first resistor be the discharge module first input end, the second end of the first resistor with it is described
The first end of second resistance and the connection of the control end of the first switch element, the second end of the second resistance and described the
The output end of one switch element connects the output end to form the discharge module altogether, the input of the first switch element with it is described
The second end connection of 3rd resistor, the first end of the 3rd resistor is the second input of the discharge module.
4. braking circuit according to claim 2, it is characterised in that the time control module includes the 4th resistance, filled
Electric capacity, the 5th resistance and second switch element；
The first end of 4th resistance be the time control module first input end, the second end of the 4th resistance with
The control end of the first end of the charging capacitor, the first end of the 5th resistance and the second switch element connects to be formed altogether
The charging end of the time control module, the second end of the second end of the charging capacitor and the 5th resistance and described the
The output end of two switch elements connects the output end to form the time control module altogether, and the input of the second switch element is
Second input of the time control module.
5. braking circuit according to claim 2, it is characterised in that the operating voltage generation module includes the one or two pole
Pipe, the second diode and Switching Power Supply；
The anode of first diode is the first input end of the operating voltage generation module, the sun of second diode
Second input of extremely described operating voltage generation module, the negative electrode of first diode and the first of the Switching Power Supply
Input is connected, and the negative electrode of second diode is connected with the second input of the Switching Power Supply, the Switching Power Supply
First output end is the output end of the operating voltage generation module, the second output head grounding of the Switching Power Supply.
6. braking circuit according to claim 2, it is characterised in that the first switch module include the 3rd diode with
Single-pole double-throw relay；
The negative electrode of 3rd diode connects to form the first switch module altogether with the first end of the single-pole double-throw relay
First input end, the second end of the single-pole double-throw relay is the second input of the first switch module, described the
The anode of three diodes connects the first output to form the first switch module with the 3rd end of the single-pole double-throw relay altogether
End, the first contact of the single-pole double-throw relay is the second output end of the first switch module.
7. braking circuit according to claim 2, it is characterised in that the second switch module include the 4th diode,
6th resistance and dpdt relay；
The first end of 6th resistance be the second switch module first input end, the second end of the 6th resistance with
The negative electrode of 4th diode and the first end of the dpdt relay connect altogether, the anode of the 4th diode with
Second end of the dpdt relay connects the first output end to form the second switch module altogether, the DPDT after
The first contact, the second contact, the 3rd contact and the 4th contact of electrical equipment are respectively the second input of the second switch module
End, the 3rd input, the 4th input and the 5th input, the 3rd end and the 4th end of the dpdt relay are distinguished
For the second output end and the 3rd output end of the second switch module.
8. braking circuit according to claim 2, it is characterised in that the on-off circuit includes single-pole double-throw switch (SPDT)；
The first end of the single-pole double-throw switch (SPDT) is the input of the on-off circuit, the first contact of the single-pole double-throw switch (SPDT)
For the first output end of the on-off circuit, the second contact of the single-pole double-throw switch (SPDT) exports for the second of the on-off circuit
End.
9. the braking circuit according to any one of claim 1 to 8, it is characterised in that the braking direct current generation module
Including voltage transformation unit and rectification unit；
The first input end of the voltage transformation unit and the second input are respectively the first defeated of the braking direct current generation module
Enter end and the second input, the first output end of the voltage transformation unit with the second output end respectively with the rectification unit first
Input and the connection of the second input, the first output end and the second output end of the rectification unit are respectively the braking direct current
First output end of electric generation module and the second output end；
The voltage transformation unit receives the alternating current, and the alternating current is converted into low-voltage alternating-current electricity output to the rectification list
Member, the rectification unit exports the braking direct current after carrying out rectification processing to the low-voltage AC.
10. a kind of switched reluctance machines, it is characterised in that the switched reluctance machines are included such as any one of claim 1 to 9 institute
The braking circuit stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621286656.5U CN206332630U (en) | 2016-11-25 | 2016-11-25 | A kind of switched reluctance machines and its braking circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621286656.5U CN206332630U (en) | 2016-11-25 | 2016-11-25 | A kind of switched reluctance machines and its braking circuit |
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| Publication Number | Publication Date |
|---|---|
| CN206332630U true CN206332630U (en) | 2017-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621286656.5U Withdrawn - After Issue CN206332630U (en) | 2016-11-25 | 2016-11-25 | A kind of switched reluctance machines and its braking circuit |
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| CN (1) | CN206332630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602944A (en) * | 2016-11-25 | 2017-04-26 | 捷和电机制品(深圳)有限公司 | Switched reluctance motor and brake circuit thereof |
-
2016
- 2016-11-25 CN CN201621286656.5U patent/CN206332630U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602944A (en) * | 2016-11-25 | 2017-04-26 | 捷和电机制品(深圳)有限公司 | Switched reluctance motor and brake circuit thereof |
| CN106602944B (en) * | 2016-11-25 | 2023-07-07 | 捷和电机制品(深圳)有限公司 | Switch reluctance motor and braking circuit thereof |
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