CN107947652A - Control system and its tri-state control method for brush direct current motor - Google Patents
Control system and its tri-state control method for brush direct current motor Download PDFInfo
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- CN107947652A CN107947652A CN201711250770.1A CN201711250770A CN107947652A CN 107947652 A CN107947652 A CN 107947652A CN 201711250770 A CN201711250770 A CN 201711250770A CN 107947652 A CN107947652 A CN 107947652A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
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Abstract
The invention discloses the control system for brush direct current motor and its tri-state control method, including supervisory controller, hilted broadsword relay, two keys relay, direct current generator, supervisory controller is connected with the coil windings of hilted broadsword relay, two keys relay and controls whether its coil windings turns on, and the two keys relay has 2 movable contacts to be respectively：Movable contact COM1 and movable contact COM2, also 2 normally closed stationary contacts are respectively：Normally closed stationary contact NC1 and normally closed stationary contact NC2, also 2 normally opened stationary contacts are respectively：Normally opened stationary contact NO1, normally opened stationary contact NO2, the hilted broadsword relay have movable contact COM and normally closed stationary contact NC, normally opened stationary contact NO；The A ends of movable contact COM1 and direct current generator connect, the B ends of movable contact COM2 and direct current generator connect, normally closed stationary contact NC1 is connected with normally opened stationary contact NO again after being connected with normally opened stationary contact NO2, normally closed stationary contact NC2 is connected with normally opened stationary contact NO1 and is followed by power cathode, normally closed stationary contact NC is vacant, and movable contact COM connects positive pole.
Description
Technical field
The invention belongs to servo-control system technical field, and in particular to a kind of control system for brush direct current motor
And its tri-state control method.The present invention can be used for the brush direct current motor control in servo-control system, such as mechanical arm, turntable
Deng.
Background technology
Brush direct current motor usually has three kinds of operating modes：Rotate forward, invert, stop, currently used control method is logical
The servo-driver for crossing dedicated devices design is driven control, is connect between supervisory controller and servo-driver by PWM
Mouth and I/O interfaces are controlled.
The control mode of the brush direct current motor takes that supervisory controller interface is more, control software is more complicated, servo drive
Dynamic body product is big, inconvenient in the control device that rotating speed control, space hold are smaller and PC control interface is limited is not required
In use.
So a kind of tri-state control method of brush direct current motor need to be designed, it is possible to achieve the rotating forward of brush direct current motor,
Three kinds of operating modes controls of reversion and stopping, and occupied space is smaller, supervisory controller interface resource is required relatively low.
The content of the invention
It is an object of the invention to provide the control system for brush direct current motor and its tri-state control method, realizes straight
Galvanic electricity machine rotates forward, three kinds of operating modes controls of reversion and stopping, and can be completely secured in the handoff procedure of above-mentioned operating mode
The security performance of system, prevents the appearance of short circuit phenomenon, while occupies little space, is low to supervisory controller interface requirement.
The present invention is achieved through the following technical solutions：
For the control system of brush direct current motor, including it is supervisory controller, hilted broadsword relay, two keys relay, straight
Galvanic electricity machine, supervisory controller are connected with the coil windings of hilted broadsword relay, two keys relay and whether control its coil windings
Conducting,
The two keys relay has 2 movable contacts to be respectively：Movable contact COM1 and movable contact COM2, also has 2 normally closed stationary contacts
Put and be respectively：Normally closed stationary contact NC1 and normally closed stationary contact NC2, also 2 normally opened stationary contacts are respectively：Normally opened stationary contact NO1,
Normally opened stationary contact NO2, the hilted broadsword relay have movable contact COM and normally closed stationary contact NC, normally opened stationary contact NO；
The A ends of movable contact COM1 and direct current generator connect, and the B ends of movable contact COM2 and direct current generator connect, normally closed stationary contact
Point NC1 is connected with normally opened stationary contact NO again after being connected with normally opened stationary contact NO2, and normally closed stationary contact NC2 and normally opened stationary contact NO1 connects
Connect and be followed by power cathode, normally closed stationary contact NC is vacant, and movable contact COM connects positive pole.
The present invention operation principle be：Stop state controls：Supervisory controller control hilted broadsword relay, two keys relay
Coil windings when being all not turned on, normally closed stationary contact NC is turned on movable contact COM, and movable contact COM is not led with normally opened stationary contact NO
It is logical, therefore brush direct current motor does not work.Rotating forward state controls：Supervisory controller first controls the coil windings of hilted broadsword relay
Conducting, the coil windings of two keys relay are not turned on, and hilted broadsword relay is switched to normally opened stationary contact NO, and the dynamic of hilted broadsword relay touches
Point COM is turned on normally opened stationary contact NO, the A ends of direct current generator through movable contact COM1, normally closed stationary contact NC1, normally opened stationary contact NO,
Positive pole is accessed after movable contact COM, the B ends of direct current generator are accessed power supply after movable contact COM2, normally closed stationary contact NC2 and born
Pole, direct current generator rotate forward.Inverted status control：The coil windings that supervisory controller then directly controls two keys relay are led
Logical, the movable contact COM of hilted broadsword relay and normally opened stationary contact NO is still held on, and two keys relay is switched to normally opened stationary contact
NO1 and normally opened stationary contact NO2, the movable contact COM1 of two keys relay are turned on normally opened stationary contact NO1, and the dynamic of two keys relay touches
Point COM2 is turned on normally opened stationary contact NO2, and the B ends of direct current generator are through movable contact COM2, normally opened stationary contact NO2, normally opened stationary contact
Positive pole is accessed after NO, movable contact COM, power supply is accessed in the A ends of direct current generator after movable contact COM1, normally opened stationary contact NO1
Anode, direct current generator reversion.
Compared with prior art, the present invention have 2 big advantages, and first, operation is not cumbersome, and it is to connect just to go to reverse turn operation
Continuous progress, and conventional art needs to stall, and then restarts reverse turn operation.Second, the present invention has very high security performance,
Short circuit phenomenon will not occur.The present invention has the reasons why above-mentioned 2 big advantage as follows：In the prior art, also have using host computer
Controller, hilted broadsword relay, two keys relay control the equipment of the positive and negative rotation of motor, but its technology is：Firewire is by single
The normally opened stationary contact NO of knife relay is connected with the movable contact COM1 of two keys relay, and zero curve is connected with movable contact COM2, so
Closing after stationary contact NC1 is connected with normally opened stationary contact NO2 for two keys relay is connected with motor power one end again afterwards, normally closed stationary contact
NC2 be connected with normally opened stationary contact NO1 after again with the motor power other end, the difference of technology of this technology and the present invention is this hair
The stationary contact of bright two keys relay is connected with mains side, movable contact and motor connect, and the two keys relay of the prior art
Stationary contact is connected with motor, movable contact and mains side connect, and popular says, difference with the prior art of the present invention is of the invention
The mode of connection of two keys relay is opposite with the prior art, since the purpose of design of relay device itself is by an electricity
Source branch switching control is to different paths, therefore the movable contact of relay must be connected to mains side by people, and stationary contact connects
It is connected to electricity consumption branch trackside.Therefore it is based on for this branch switch of relay, in the course of time, in people's ideology traditionally all
Wiring is completed according to the scheme of above-mentioned prior art to use.Found by research, although the above-mentioned prior art can realize electricity
The tri-state control of machine, but can not realize by just going to directly controlling for reversion, hilted broadsword relay must be first turned off in its handoff procedure
Device, after being then turned on the transposition switching of two keys relay, restarts powering on for hilted broadsword relay, operation feelings only in this way
It just can guarantee that not short-circuit phenomenon occurs under condition, the reason is that：Since two keys relay has 2 movable contacts, i.e. 2 disconnecting links,
And since the reasons such as the precision of manufacture itself, stroke can not ensure that 2 disconnecting links smoothly complete synchronism switching, and in hilted broadsword relay
When device continues to remain up power supply, for two keys relay, once a disconnecting link first switches and another disconnecting link fails
To during switching, then it can cause 2 disconnecting link direct short-circuits, and in order to avoid due to asynchronous caused short circuit problem, the prior art
Solved in a manner of operation order, i.e., first deenergization, hilted broadsword relay is then turned on when two keys relay switches in place completely
Device completes switched conductive power supply, although the setting of this operation order can overcome the asynchronous short circuit brought of above-mentioned 2 disconnecting links
Problem, but this mode of connection also have one it is important the shortcomings that：It is known that for corresponding switching device, in handoff procedure
In many times can all produce arcing problems, and the generation of electric arc is easily so that 2 contact portions, and for the above-mentioned prior art
For, it is assumed that a disconnecting link is soldered since arcing problems result in disconnecting link, and due to that can not know in relay whether is disconnecting link
It is soldered, thus it is even if suitable according to the above-mentioned hilted broadsword relay of first breaking, the operation for switching two keys relay again, leading to hilted broadsword relay again
Sequence also results in disconnecting link short circuit, causes the burning of relay.And the mode of connection in the present invention then can be to avoid in hilted broadsword relay
In the case of device turn-on power, switching two keys relay will not be asynchronous due to disconnecting link and cause short circuit, its principle is：Due to upper
State the change of the mode of connection, the stationary contact of two keys relay of the invention, which is divided into 2 groups one group and connects one group of cathode, connects anode, and according to
The mode of connection of the present invention and is moved at this time it can be found that in the case of movable contact COM1 is not separated with stationary contact NC1 in time
When contact COM2 is connected with stationary contact NO2, what the both ends of motor all connect is the cathode of power supply at this time, does not form short circuit, because
This equipment is safety, even if when movable contact COM1 and stationary contact NC1 is soldered, in the case of switching command, remaining makes
Motor both ends all connect be power supply cathode, do not form short circuit, therefore, this mode of connection only can the above problem without
Original short circuit is changed into same in the case of avoiding and connects same current potential by method, therefore more safe and reliable, that is to say, that the prior art
The method for solving short circuit is solved using complicated operation order, and this solution still fails to solve arc welding contact
The short circuit problem that brings of point, can only control the short circuit problem brought since double-pole is asynchronous, and the present invention be the change that uses and
Traditional habit and this mode of connection for running counter to relay select switch design philosophy, with this without asynchronous bring can be solved
Short circuit problem, moreover it is possible to short-circuit conditions also do not occur in the case where disconnecting link is soldered, and this mode of connection can directly be kept
The switching state of hilted broadsword relay, it is more efficient, reliable and safe without frequent switching hilted broadsword relay, operation.
Can be seen that the present invention from the course of work of the invention described above has 1 a little, in the handoff procedure of forward and reverse
In, without resetting hilted broadsword relay, it directly can directly switch two keys relay on the basis of the work of hilted broadsword relay and reach
The purpose of reversion, has saved process steps.
The direct current generator is brush direct current motor.
The movable contact COM connects+24V DC power anodes, and normally closed stationary contact NC2 is connected with normally opened stationary contact NO1 and is followed by
DC power cathode.
The supervisory controller is connected by I/O interfaces with the coil windings of hilted broadsword relay, two keys relay.
The control method of control system, including following it is carried out continuously step：
Step A：When supervisory controller control hilted broadsword relay, the coil windings of two keys relay are all not turned on, direct current
Brush motor does not work；
Step B：Supervisory controller first controls the coil windings of hilted broadsword relay to turn on, the coil windings of two keys relay
It is not turned on, hilted broadsword relay is switched to normally opened stationary contact NO, and the movable contact COM of hilted broadsword relay is turned on normally opened stationary contact NO,
The A ends of direct current generator are accessed after movable contact COM1, normally closed stationary contact NC1, normally opened stationary contact NO, movable contact COM
Power cathode is accessed at positive pole, the B ends of direct current generator after movable contact COM2, normally closed stationary contact NC2, and direct current generator rotates forward；
Step C：Supervisory controller then directly controls the coil windings conducting of two keys relay, and hilted broadsword relay moves
Contact COM and normally opened stationary contact NO is still held on, and two keys relay is switched to normally opened stationary contact NO1 and normally opened stationary contact
NO2, the movable contact COM1 of two keys relay are turned on normally opened stationary contact NO1, the movable contact COM2 of two keys relay with it is normally opened quiet
Contact NO2 is turned on,
The B ends of direct current generator are accessed after movable contact COM2, normally opened stationary contact NO2, normally opened stationary contact NO, movable contact COM
Power cathode, direct current generator reversion are accessed in positive pole, the A ends of direct current generator after movable contact COM1, normally opened stationary contact NO1.
Compared with prior art, the present invention have the following advantages and advantages：What the 1st, the present invention used is used for direct current
The relay tri-state control method of brush motor control, forms logic control circuit by two relays, passes through host computer control
Two I/O interfaces with driving relay line bag ability to work of device processed, you can realize rotating forward, the reversion to brush direct current motor
With stop three kinds of operating modes control, and occupy little space, control software it is simple.What the 2nd, the present invention used is used for DC brush
The relay tri-state control method of motor control, can be applied to and use brush direct current motor, not require rotating speed control, body
Product requires small, the servo-control system such as the few mechanical arm of PC control interface, turntable.3rd, it is safer, will not short circuit.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the circuit connection block diagram of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, the present invention is made with reference to embodiment
Further to describe in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment one
As shown in Figure 1,
For the control system of brush direct current motor, including it is supervisory controller, hilted broadsword relay, two keys relay, straight
Galvanic electricity machine, supervisory controller are connected with the coil windings of hilted broadsword relay, two keys relay and whether control its coil windings
Conducting,
The two keys relay has 2 movable contacts to be respectively：Movable contact COM1 and movable contact COM2, also has 2 normally closed stationary contacts
Put and be respectively：Normally closed stationary contact NC1 and normally closed stationary contact NC2, also 2 normally opened stationary contacts are respectively：Normally opened stationary contact NO1,
Normally opened stationary contact NO2, the hilted broadsword relay have movable contact COM and normally closed stationary contact NC, normally opened stationary contact NO；
The A ends of movable contact COM1 and direct current generator connect, and the B ends of movable contact COM2 and direct current generator connect, normally closed stationary contact
Point NC1 is connected with normally opened stationary contact NO again after being connected with normally opened stationary contact NO2, and normally closed stationary contact NC2 and normally opened stationary contact NO1 connects
Connect and be followed by power cathode, normally closed stationary contact NC is vacant, and movable contact COM connects positive pole.
The present invention operation principle be：Stop state controls：Supervisory controller control hilted broadsword relay, two keys relay
Coil windings when being all not turned on, normally closed stationary contact NC is turned on movable contact COM, and movable contact COM is not led with normally opened stationary contact NO
It is logical, therefore brush direct current motor does not work.Rotating forward state controls：Supervisory controller first controls the coil windings of hilted broadsword relay
Conducting, the coil windings of two keys relay are not turned on, and hilted broadsword relay is switched to normally opened stationary contact NO, and the dynamic of hilted broadsword relay touches
Point COM is turned on normally opened stationary contact NO, the A ends of direct current generator through movable contact COM1, normally closed stationary contact NC1, normally opened stationary contact NO,
Positive pole is accessed after movable contact COM, the B ends of direct current generator are accessed power supply after movable contact COM2, normally closed stationary contact NC2 and born
Pole, direct current generator rotate forward.Inverted status control：The coil windings that supervisory controller then directly controls two keys relay are led
Logical, the movable contact COM of hilted broadsword relay and normally opened stationary contact NO is still held on, and two keys relay is switched to normally opened stationary contact
NO1 and normally opened stationary contact NO2, the movable contact COM1 of two keys relay are turned on normally opened stationary contact NO1, and the dynamic of two keys relay touches
Point COM2 is turned on normally opened stationary contact NO2, and the B ends of direct current generator are through movable contact COM2, normally opened stationary contact NO2, normally opened stationary contact
Positive pole is accessed after NO, movable contact COM, power supply is accessed in the A ends of direct current generator after movable contact COM1, normally opened stationary contact NO1
Anode, direct current generator reversion.
Compared with prior art, the present invention have 2 big advantages, and first, operation is not cumbersome, and it is to connect just to go to reverse turn operation
Continuous progress, and conventional art needs to stall, and then restarts reverse turn operation.Second, the present invention has very high security performance,
Short circuit phenomenon will not occur.The present invention has the reasons why above-mentioned 2 big advantage as follows：In the prior art, also have using host computer
Controller, hilted broadsword relay, two keys relay control the equipment of the positive and negative rotation of motor, but its technology is：Firewire is by single
The normally opened stationary contact NO of knife relay is connected with the movable contact COM1 of two keys relay, and zero curve is connected with movable contact COM2, so
Closing after stationary contact NC1 is connected with normally opened stationary contact NO2 for two keys relay is connected with motor power one end again afterwards, normally closed stationary contact
NC2 be connected with normally opened stationary contact NO1 after again with the motor power other end, the difference of technology of this technology and the present invention is this hair
The stationary contact of bright two keys relay is connected with mains side, movable contact and motor connect, and the two keys relay of the prior art
Stationary contact is connected with motor, movable contact and mains side connect, and popular says, difference with the prior art of the present invention is of the invention
The mode of connection of two keys relay is opposite with the prior art, since the purpose of design of relay device itself is by an electricity
Source branch switching control is to different paths, therefore the movable contact of relay must be connected to mains side by people, and stationary contact connects
It is connected to electricity consumption branch trackside.Therefore it is based on for this branch switch of relay, in the course of time, in people's ideology traditionally all
Wiring is completed according to the scheme of above-mentioned prior art to use.Found by research, although the above-mentioned prior art can realize electricity
The tri-state control of machine, but can not realize by just going to directly controlling for reversion, hilted broadsword relay must be first turned off in its handoff procedure
Device, after being then turned on the transposition switching of two keys relay, restarts powering on for hilted broadsword relay, operation feelings only in this way
It just can guarantee that not short-circuit phenomenon occurs under condition, the reason is that：Since two keys relay has 2 movable contacts, i.e. 2 disconnecting links,
And since the reasons such as the precision of manufacture itself, stroke can not ensure that 2 disconnecting links smoothly complete synchronism switching, and in hilted broadsword relay
When device continues to remain up power supply, for two keys relay, once a disconnecting link first switches and another disconnecting link fails
To during switching, then it can cause 2 disconnecting link direct short-circuits, and in order to avoid due to asynchronous caused short circuit problem, the prior art
Solved in a manner of operation order, i.e., first deenergization, hilted broadsword relay is then turned on when two keys relay switches in place completely
Device completes switched conductive power supply, although the setting of this operation order can overcome the asynchronous short circuit brought of above-mentioned 2 disconnecting links
Problem, but this mode of connection also have one it is important the shortcomings that：It is known that for corresponding switching device, in handoff procedure
In many times can all produce arcing problems, and the generation of electric arc is easily so that 2 contact portions, and for the above-mentioned prior art
For, it is assumed that a disconnecting link is soldered since arcing problems result in disconnecting link, and due to that can not know in relay whether is disconnecting link
It is soldered, thus it is even if suitable according to the above-mentioned hilted broadsword relay of first breaking, the operation for switching two keys relay again, leading to hilted broadsword relay again
Sequence also results in disconnecting link short circuit, causes the burning of relay.And the mode of connection in the present invention then can be to avoid in hilted broadsword relay
In the case of device turn-on power, switching two keys relay will not be asynchronous due to disconnecting link and cause short circuit, its principle is：Due to upper
State the change of the mode of connection, the stationary contact of two keys relay of the invention, which is divided into 2 groups one group and connects one group of cathode, connects anode, and according to
The mode of connection of the present invention and is moved at this time it can be found that in the case of movable contact COM1 is not separated with stationary contact NC1 in time
When contact COM2 is connected with stationary contact NO2, what the both ends of motor all connect is the cathode of power supply at this time, does not form short circuit, because
This equipment is safety, even if when movable contact COM1 and stationary contact NC1 is soldered, in the case of switching command, remaining makes
Motor both ends all connect be power supply cathode, do not form short circuit, therefore, this mode of connection only can the above problem without
Original short circuit is changed into same in the case of avoiding and connects same current potential by method, therefore more safe and reliable, that is to say, that the prior art
The method for solving short circuit is solved using complicated operation order, and this solution still fails to solve arc welding contact
The short circuit problem that brings of point, can only control the short circuit problem brought since double-pole is asynchronous, and the present invention be the change that uses and
Traditional habit and this mode of connection for running counter to relay select switch design philosophy, with this without asynchronous bring can be solved
Short circuit problem, moreover it is possible to short-circuit conditions also do not occur in the case where disconnecting link is soldered, and this mode of connection can directly be kept
The switching state of hilted broadsword relay, it is more efficient, reliable and safe without frequent switching hilted broadsword relay, operation.
Can be seen that the present invention from the course of work of the invention described above has 1 a little, in the handoff procedure of forward and reverse
In, without resetting hilted broadsword relay, it directly can directly switch two keys relay on the basis of the work of hilted broadsword relay and reach
The purpose of reversion, has saved process steps.
The direct current generator is brush direct current motor.
The movable contact COM connects+24V DC power anodes, and normally closed stationary contact NC2 is connected with normally opened stationary contact NO1 and is followed by
DC power cathode.
The supervisory controller is connected by I/O interfaces with the coil windings of hilted broadsword relay, two keys relay.
The control method of control system, including following it is carried out continuously step：
Step A：When supervisory controller control hilted broadsword relay, the coil windings of two keys relay are all not turned on, direct current
Brush motor does not work；
Step B：Supervisory controller first controls the coil windings of hilted broadsword relay to turn on, the coil windings of two keys relay
It is not turned on, hilted broadsword relay is switched to normally opened stationary contact NO, and the movable contact COM of hilted broadsword relay is turned on normally opened stationary contact NO,
The A ends of direct current generator are accessed after movable contact COM1, normally closed stationary contact NC1, normally opened stationary contact NO, movable contact COM
Power cathode is accessed at positive pole, the B ends of direct current generator after movable contact COM2, normally closed stationary contact NC2, and direct current generator rotates forward；
Step C：Supervisory controller then directly controls the coil windings conducting of two keys relay, and hilted broadsword relay moves
Contact COM and normally opened stationary contact NO is still held on, and two keys relay is switched to normally opened stationary contact NO1 and normally opened stationary contact
NO2, the movable contact COM1 of two keys relay are turned on normally opened stationary contact NO1, the movable contact COM2 of two keys relay with it is normally opened quiet
Contact NO2 is turned on,
The B ends of direct current generator are accessed after movable contact COM2, normally opened stationary contact NO2, normally opened stationary contact NO, movable contact COM
Power cathode, direct current generator reversion are accessed in positive pole, the A ends of direct current generator after movable contact COM1, normally opened stationary contact NO1.
Above-described embodiment, has carried out the purpose of the present invention, technical solution and beneficial effect further
Describe in detail, it should be understood that the foregoing is merely the embodiment of the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done, should all include
Within protection scope of the present invention.
Claims (5)
1. for the control system of brush direct current motor, including supervisory controller, hilted broadsword relay, two keys relay, direct current
Motor, supervisory controller are connected with the coil windings of hilted broadsword relay, two keys relay and control whether its coil windings is led
It is logical, it is characterised in that：
The two keys relay has 2 movable contacts to be respectively：Movable contact COM1 and movable contact COM2, also has 2 normally closed stationary contacts point
It is not：Normally closed stationary contact NC1 and normally closed stationary contact NC2, also 2 normally opened stationary contacts are respectively：It is normally opened stationary contact NO1, normally opened
Stationary contact NO2, the hilted broadsword relay have movable contact COM and normally closed stationary contact NC, normally opened stationary contact NO；
The A ends of movable contact COM1 and direct current generator connect, and the B ends of movable contact COM2 and direct current generator connect, normally closed stationary contact NC1
It is connected again with normally opened stationary contact NO after being connected with normally opened stationary contact NO2, after normally closed stationary contact NC2 is connected with normally opened stationary contact NO1
Power cathode is connect, normally closed stationary contact NC is vacant, and movable contact COM connects positive pole.
2. the control system according to claim 1 for brush direct current motor, it is characterised in that the direct current generator is
Brush direct current motor.
3. the control system according to claim 1 for brush direct current motor, it is characterised in that the movable contact COM
+ 24V DC power anodes are connect, normally closed stationary contact NC2 is connected with normally opened stationary contact NO1 and is followed by DC power cathode.
4. the control system according to claim 1 for brush direct current motor, it is characterised in that the PC control
Device is connected by I/O interfaces with the coil windings of hilted broadsword relay, two keys relay.
5. being used for the tri-state control method of the control system of brush direct current motor based on any one in claim 1-4, it is special
Sign is, including following is carried out continuously step：
Step A：When supervisory controller control hilted broadsword relay, the coil windings of two keys relay are all not turned on, DC brush
Motor does not work；
Step B：Supervisory controller first controls that the coil windings of hilted broadsword relay turn on, the coil windings of two keys relay are not led
Logical, hilted broadsword relay is switched to normally opened stationary contact NO, and the movable contact COM of hilted broadsword relay is turned on normally opened stationary contact NO,
Power supply is accessed in the A ends of direct current generator after movable contact COM1, normally closed stationary contact NC1, normally opened stationary contact NO, movable contact COM
Power cathode is accessed at cathode, the B ends of direct current generator after movable contact COM2, normally closed stationary contact NC2, and direct current generator rotates forward；
Step C：Supervisory controller then directly controls the coil windings conducting of two keys relay, the movable contact of hilted broadsword relay
COM and normally opened stationary contact NO is still held on, and two keys relay is switched to normally opened stationary contact NO1 and normally opened stationary contact NO2, double
The movable contact COM1 of knife relay is turned on normally opened stationary contact NO1, the movable contact COM2 of two keys relay and normally opened stationary contact NO2
Conducting,
Power supply is accessed in the B ends of direct current generator after movable contact COM2, normally opened stationary contact NO2, normally opened stationary contact NO, movable contact COM
Power cathode, direct current generator reversion are accessed in cathode, the A ends of direct current generator after movable contact COM1, normally opened stationary contact NO1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711250770.1A CN107947652A (en) | 2017-12-01 | 2017-12-01 | Control system and its tri-state control method for brush direct current motor |
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|---|---|---|---|
| CN201711250770.1A CN107947652A (en) | 2017-12-01 | 2017-12-01 | Control system and its tri-state control method for brush direct current motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546996A (en) * | 2020-05-25 | 2020-08-18 | 深圳市易中电子有限公司 | Car as a house controlling means and car as a house |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202218186U (en) * | 2011-09-14 | 2012-05-09 | 宁波杜亚机电技术有限公司 | Commutation control device of direct current motor |
| CN103036486A (en) * | 2011-09-28 | 2013-04-10 | Asco电力技术公司 | System and method for brake control of direct current permanent magnet motor |
| CN203895029U (en) * | 2014-05-21 | 2014-10-22 | 深圳信息职业技术学院 | System simulating high falling object in earthquake |
| CN204498032U (en) * | 2015-03-09 | 2015-07-22 | 九阳股份有限公司 | A kind of food processor of low cost |
| CN204517712U (en) * | 2015-03-31 | 2015-07-29 | 淮安信息职业技术学院 | The interface circuit of Single-chip Controlling DC motor rotating |
-
2017
- 2017-12-01 CN CN201711250770.1A patent/CN107947652A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202218186U (en) * | 2011-09-14 | 2012-05-09 | 宁波杜亚机电技术有限公司 | Commutation control device of direct current motor |
| CN103036486A (en) * | 2011-09-28 | 2013-04-10 | Asco电力技术公司 | System and method for brake control of direct current permanent magnet motor |
| CN203895029U (en) * | 2014-05-21 | 2014-10-22 | 深圳信息职业技术学院 | System simulating high falling object in earthquake |
| CN204498032U (en) * | 2015-03-09 | 2015-07-22 | 九阳股份有限公司 | A kind of food processor of low cost |
| CN204517712U (en) * | 2015-03-31 | 2015-07-29 | 淮安信息职业技术学院 | The interface circuit of Single-chip Controlling DC motor rotating |
Non-Patent Citations (1)
| Title |
|---|
| 赵鹏飞等: ""直流电机无速度传感器闭环控制系统设计"", 《宁波大学学报（理工版）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546996A (en) * | 2020-05-25 | 2020-08-18 | 深圳市易中电子有限公司 | Car as a house controlling means and car as a house |
| CN111546996B (en) * | 2020-05-25 | 2021-04-27 | 深圳市易中电子有限公司 | Car as a house controlling means and car as a house |
| US11713010B2 (en) | 2020-05-25 | 2023-08-01 | Estone Technology LTD. | Recreational vehicle control apparatus and recreational vehicle |
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