CN201345631Y

CN201345631Y - Control module for brush mode motor and brushless mode motor

Info

Publication number: CN201345631Y
Application number: CNU2008201816271U
Authority: CN
Inventors: 伍信荣; 刘贵兴
Original assignee: STL Technology Co Ltd
Current assignee: STL Technology Co Ltd
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2009-11-11
Anticipated expiration: 2018-12-31

Abstract

The utility model discloses a control module used for a brush mode motor and a brushless mode motor. The control module comprises a magnetic inductor, a control chip, a phase assurance circuit, a stable state circuit and a drive circuit, wherein, the magnetic inductor is utilized for inducing the motor to generate an induced signal so as to respectively control a first steering signal and a second steering signal of rotation and reverse rotation of the motor through the control chip, a first steering signal and a second steering signal for the phase of the motor as well as a pulse-width modulation signal for the rotational speed of the motor, and the first phase signal and the second phase signal are controlled to be output only in a single phase signal mode at the same time under the action of the phase assurance circuit so that the motor is stably and smoothly controlled to rotate through the follow-up drive circuit; and both the brush mode motor and the brushless mode motor can be controlled, and meanwhile, due to the design that the phase signals are separated from the pulse-width modulation signal, the debugging of phase or speed of the motor is easier to judge and adjust, the motor is controlled more easily and conveniently, and the phenomenon of driving damage of the motor is effectively reduced.

Description

Be common to the control module of the motor of brush and brushless pattern

Technical field

The utility model relates to a kind of control module, particularly a kind of control module that is common to the motor of brush and brushless pattern.

Background technology

Motor is commonly called as motor, and it is of a great variety and be widely used, if with its internal structure, mainly can be divided into brush and brushless motor two classes are arranged; Wherein, only need input one electric current and control forward and backward signal on the control module of brush motor, promptly this brush motor of may command produces a velocity of rotation and the forward and backward signal rotates certain convenient rotation, so comparatively simple on controlling.

Review the control module of brushless motor, it is because of there being the phase place factor of judgment, so comparatively complicated in control mode; Consult Fig. 1, the control module 1 of known brushless motor 2 includes this brushless motor 2 of a sensing and rotates the magnetic inductor 11 that changes and send induced signal HU, HV, HW, one receives induced signal HU, HV, the HW of this magnetic inductor 11 and is changed the control chip 12 of output, one receives the transition circuit 13 of these control chip 12 output signals, and a drive circuit 14 that receives this transition circuit 13 and this brushless motor 2 is driven; Wherein, this brushless motor 2 is that the brushless motor 2 with a tool three-phase coil U, V and W is an example; In addition, 13 output signals with this control chip 12 of this transition circuit convert six step square-wave signal UH, UL, VH, VL, WH, WL to; As for, this drive circuit 14 receives this six step square-wave signal UH, UL, VH, VL, WH, WL and treatment conversion and becomes CRANK PULSES to rotate to drive this brushless motor 2.

Still continuous aforementioned, when this brushless motor 2 rotates, at first, utilize the rotor U of this this brushless motor 2 of magnetic inductor 11 sensings, V, the W position, mat and produce three induced signal HU respectively, HV, HW, and aforementioned these induced signals HU, HV, HW and through the triggering conversion in regular turn of this control chip 12, convert six step square-wave signal UH to so that deliver to this transition circuit 13 again, UL, VH, VL, WH, WL, then this drive circuit 14 is promptly by this six step square-wave signal UH, VH, WH, UL, the switch speed of VL and WL and order, to impel this drive circuit 14 to convert to can to drive the CRANK PULSES of these brushless motor 2 rotations, rotate to control this brushless motor 2, relatively, so repeat aforementioned activities, i.e. the velocity of rotation of this brushless motor 2 of may command and rotating action.

So, the actual back of using finds that the control module 1 of known brushless motor 2 is used to go up and easily produced following disappearance, and details are as follows now:

1, because known brushless motor 2 drives, complete set is utilized these induced signals HU, HV, HW and through the triggering conversion in regular turn of this control chip 12, drive this brushless motor 2 rotations to control this drive circuit 14, but, this trigger mode pauses because of easily causing this brushless motor 2 to rotate easily to have slightly, outside can't rotating swimmingly, and this control chip 12 is at these induced signals HU, HV, HW also has in control can't accurately grasp transmission problem on opportunity, cause easily causing in confusion that signal sends and the adjustment difficulty more, very easily cause this brushless motor 2 to damage, remain in fact to be improved because of signal conflicts mutually.

2, still continuous aforementioned, because this control chip 12 triggers conversion in regular turn at these induced signals HU, HV, the HW that are detected, so it is more difficult on the rotating speed of this brushless motor 2 and phase control, when so this brushless motor 2 produces mistake, and can't offer an explanation out the erroneous point of problems such as speed or phase control in real time, relatively, cause the difficulty in the debug, and increase the inconvenience in the adjustment.

3, the control model of aforementioned this control module 1 only can be at brushless motor 2, can't apply to fully use on this brush motor, so this control module only limits to control this brushless motor 2, so promptly will prepare different control modules in addition in response to, the real inconvenience that easily causes in the use at the motor pattern of difference.

The utility model content

The purpose of this utility model is to provide a kind of control module that is common to the motor of brush and brushless pattern, it can be more prone to the debug of differentiation and adjustment motor phase or speed, make the control of this motor be more prone to, convenient, and effectively reduce effect such as this motor driven damage.

The technical solution of the utility model is such: the control module that is common to the motor of brush and brushless pattern, this control module is able to be controlled at brush motor or brushless motor, this control module includes: a magnetic inductor, it is arranged at this motor periphery and responds to this revolution and changes, and is sent induced signal; One control chip, it includes the receiving element of this induced signal of reception, one processing unit that is connected with this receiving element and this induced signal is changed, and the output unit that the signal after this processing unit processes is exported, wherein, the signal of this output unit output can be divided into first, second that control this motor forward and backward respectively and turn to signal, controls first, second phase place signal of this motor phase respectively, and the pulse width modulation signal of a control revolution speed; One phase place is guaranteed circuit, its can receive this control chip first, second turn to signal, first, second phase place signal and pulse width modulation signal, and turn to signal according to this first, second, first, second phase place signal and pulse width modulation signal are controlled this first, second phase place signal and only are single phase place signal output mode at one time, are able to normal use to guarantee these follow-up signals; One transition circuit, it is the integrated circuit of a microminiaturization, can receive these signals that this phase place guarantees that circuit is exported, and is converted these signals to six step square-wave signals; And one drive circuit, it joins with this motor, transition circuit respectively, and accept this six the step square-wave signal converted to the CRANK PULSES that can drive this revolution.

After adopting such scheme, control module of the present utility model, it utilizes magnetic inductor to respond to this motor to produce sensor signal, just controlling this motor respectively so that be converted to via control chip, first of counter-rotating, second turns to signal, control first of this motor phase respectively, the second phase place signal, and the pulse width modulation signal of a control revolution speed, then these signals are guaranteed circuit function through phase place again, with control this first, the second phase place signal only is single phase place signal output mode at one time, causes the subsequent drive circuit to stablize, control this revolution swimmingly; Be with, no matter this control module has the motor of brush or brushless pattern all can control, simultaneously because of phase place signal and pulse width modulation signal separate design, so debug in this motor phase or speed, be more prone to differentiate and give adjustment, make this motor control be more prone to, make things convenient for, and effectively reduce this motor driven and damage the facts.

Description of drawings

Fig. 1 is the control module structure block schematic diagram of known brushless motor;

Fig. 2 is the control module circuit diagram that applies to brushless motor of the utility model first embodiment;

Fig. 3 is the control module circuit diagram that applies to brushless motor of this novel second embodiment.

Embodiment

About addressing other technology contents, characteristics and effect before the utility model, in the following detailed description that cooperates with reference to graphic preferred embodiment, can clearly understand.

Before the utility model is described in detail, be noted that in the following description similarly assembly is to represent with identical numbering.

Consult Fig. 2, the utility model has been common to brush, first preferred embodiment of the control module of the motor of brushless pattern, this control module 3 includes this this motor 5 of a sensing and rotates variation and send induced signal HV, HU, the magnetic inductor 31 of HW, one receives the induced signal HV of this magnetic inductor 31, HU, HW and changed the control chip 32 of output, one phase place that receives these control chip 32 output signals is guaranteed circuit 33, one receives the transition circuit 34 that this phase place is guaranteed circuit 33 signals, and a drive circuit 35 that receives this transition circuit 34 and this motor 5 is driven; Wherein, the motor 5 that this control module 3 is controlled is brushless motor in present embodiment, and structures such as this magnetic inductor 31, transition circuit 34 and drive circuit 35 are not added to describe in detail with known described identical for this reason simultaneously.

Still continuous aforementioned, this control chip 32 includes one and receives this induced signal HV, HU, the receiving element 321 of HW, one is connected with this receiving element 321 and with this induced signal HV, HU, the processing unit 322 that HW is changed, and the output unit 323 exported of the signal that this processing unit 322 is handled backs, wherein, the signal of these output unit 323 outputs can be divided into is just controlling this motor 5 respectively, first of counter-rotating, second turns to signal R, L, control first of these motor 5 phase places respectively, the second phase place signal X, Y, and the pulse width modulation signal PWM of a control motor 5 velocities of rotation; As for, this phase place guarantee that circuit 33 can receive this control chip 32 first, second turn to signal R, L, first, second phase place signal X, Y and pulse width modulation signal PWM, and turn to signal R, L according to this first, second, first, second phase place signal X, Y and pulse width modulation signal PWM are controlled this first, second phase place signal X, Y and only are single phase place signal X, Y output mode at one time, are able to normal use to guarantee these follow-up signals.

Consult Fig. 2, when this brushless motor 5 rotates, utilize the rotor-position of this this brushless motor 5 of magnetic inductor 31 sensings, mat and produce three induced signal HV respectively, HU, HW, and aforementioned these induced signals HV, HU, after HW delivers to this processing unit 322, this processing unit 322 is to handle in advance and to be got rid of the induced signal HV that repeats input in the same time, HU, HW, to prevent this sensing signal HU, HV, HW mistake occurs in subsequent treatment, this processing unit 322 can be by this output unit 323 outputs one this motor 5 of control just simultaneously, first of counter-rotating, second turns to signal R, L, treated first of these motor 5 phase places of controlling later, the second phase place signal X, Y, and the pulse width modulation signal PWM of independent these motor 5 velocities of rotation of control, what deserves to be explained is, this is first years old, the second phase place signal X, two outputs of Y, it can be by the phase place message of the exportable four kinds of controls of the variation of output (as XX, XY, YX, therefore YY), enough in response to the phase change of the brushless motor 5 of present embodiment tool three-phase.

Still continuous aforementioned, then when these signals are delivered to this phase place again and are guaranteed circuit 33, this phase place is guaranteed circuit 33 except that these are turned to signal R, outside L and this pulse width modulation signal PWM are exported, and limited an only phase place signal batch output in the same time, to guarantee that these follow-up signals are able to normally see through this transition circuit 34 and convert six step square-wave signal UH to, UL, VH, VL, WH, WL, and input to this drive circuit 35 and send a CRANK PULSES P and make this motor 5 smooth and easy rotations, therefore turn to signal R by these, L, phase place signal X, the design of Y and pulse width modulation signal PWM separating controlling, directly simplify the required complexity of control, make the debug of these motor 5 phase places or speed, be more prone to differentiate and give adjustment, and these motor 5 controls are more prone to, convenient, effectively prevent this motor 5 to drive the generation of damage.

Consult Fig. 3, the utility model has been common to brush, another preferred embodiment of the control module of the motor of brushless pattern, this control module 3 also can apply to the control of brushless motor 4, promptly still construct identical with last embodiment, but because this brushless motor 4 does not have phase place, that is this receiving element 321 does not receive the signal of 31 sensings of this magnetic inductor, therefore these processing unit 322 differentiations are less than the input of signal, 322 of this processing units just can exported this motor 4 of control, first of counter-rotating, second turns to signal R, the pulse width modulation signal PWM of L and these control motor 4 velocities of rotation, can directly import this transition circuit 34 and use one or six step of output square-wave signal UH, UL, VH, VL, and as this six step square wave UH, UL, VH, the VL signal enters in this drive circuit 35, this drive circuit 35 promptly can be exported the CRANK PULSES P of this brushless motor 4 of driving, therefore, so use need not link this first, two phase signal X, Y, can directly use in the control of brushless motor 4, make this control module 3 use more extensive, convenient.

By above-mentioned explanation, and the utility model and known work one are compared, when learning that the utility model has following listed advantage and effect really:

1, this control module system of the utility model turns to signal to control the velocity of rotation and the rotation direction of this brushless motor with a modulating signal that continues and first, second respectively, after first, second phase signal of exporting of this processing unit is guaranteed the output control of circuit through this phase place simultaneously, outside decapacitation can stablize this motor to rotate smoothly, more can avoid this equiphase signal to conflict mutually and cause effects such as this brushless motor damage.

2, still continuous aforementioned, the signal such as grade that this control chip is exported, it is separately independent that system is respectively, if when this controller failure takes place, whether the circuit that can check this modulating signal, first, second turn signal, first, second phase signal respectively has problem, and it is more convenient to make in debug or the adjustment.

3, last, design by this control chip, exporting this modulating signal, first, second turn signal, first, second phase signal respectively, and make this control module more improve the use value of this control module respectively in response in having in the control of brush and brushless motor.

Conclude aforementioned, the utility model has been common to the control module of brush and brushless motor, design by this control module, no matter all can control when having applied to the brush or the motor of brushless pattern, simultaneously because of phase place signal and pulse width modulation signal separate design, so, be more prone to differentiation and give adjustment in the debug of this motor phase or speed, make this motor control be more prone to, make things convenient for, and effectively reduce this motor driven and damage the facts.

The above person of thought, only be this novel preferred embodiment of explanation, when the scope that can not limit this novel enforcement with this, i.e. the simple equivalence of doing according to this novel claim and novel description generally changes and modification, all should still belong in the scope that this novel patent contains.

Claims

1, be common to the control module of the motor of brush and brushless pattern, this control module is able to be controlled at brush motor or brushless motor, it is characterized in that: this control module includes:

One magnetic inductor, it is arranged at this motor periphery and responds to this revolution and changes, and is sent induced signal;

One control chip, it includes the receiving element of this induced signal of reception, one processing unit that is connected with this receiving element and this induced signal is changed, and the output unit that the signal after this processing unit processes is exported, wherein, the signal of this output unit output can be divided into first, second that control this motor forward and backward respectively and turn to signal, controls first, second phase place signal of this motor phase respectively, and the pulse width modulation signal of a control revolution speed;

One phase place is guaranteed circuit, its can receive this control chip first, second turn to signal, first, second phase place signal and pulse width modulation signal, and turn to signal according to this first, second, first, second phase place signal and pulse width modulation signal are controlled this first, second phase place signal and only are single phase place signal output mode at one time, are able to normal use to guarantee these follow-up signals;

One transition circuit, it is the integrated circuit of a microminiaturization, can receive these signals that this phase place guarantees that circuit is exported, and is converted these signals to six step square-wave signals; And

One drive circuit, it joins with this motor, transition circuit respectively, and accept this six the step square-wave signal converted to the CRANK PULSES that can drive this revolution.