CN206135752U - Motor element , integrated circuit and application apparatus - Google Patents
Motor element , integrated circuit and application apparatus Download PDFInfo
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- CN206135752U CN206135752U CN201620700738.3U CN201620700738U CN206135752U CN 206135752 U CN206135752 U CN 206135752U CN 201620700738 U CN201620700738 U CN 201620700738U CN 206135752 U CN206135752 U CN 206135752U
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Abstract
The utility model provides a motor element, integrated circuit and including this motor element's application apparatus, wherein, motor element includes motor and motor -drive circuit, motor -drive circuit includes the reduction voltage circuit, the reduction voltage circuit has first electric current branch road and second electric current branch road that the selectivity switched on. The embodiment of the utility model provides an integrated circuit will be stepped down in application specific integrated circuit to the permission, reduce the complexity and the cost of circuit.
Description
Technical field
The utility model is related to motor-drive technique field, and in particular to a kind of electric machine assembly, integrated circuit and including this
The application apparatus of electric machine assembly.
Background technology
Motor to be referred to and realize a kind of calutron that electric energy is changed or transmitted according to the law of electromagnetic induction.During concrete application,
Motor-drive circuit is needed to provide drive signal for it.Some manufacturers wish that the electronic device of motor-drive circuit is as far as possible integrated
In special IC, to reduce circuit complexity and cost.Need to arrange dropping resistor in some motor-drive circuits.So
And, can produce the dropping resistor of larger pressure drop generally cannot be integrated in special IC.
Utility model content
A kind of electric machine assembly, including motor and motor-drive circuit, the motor-drive circuit includes reduction voltage circuit, described
Reduction voltage circuit has first current branch and the second current branch of selective conducting.
Preferably, first current branch and the second current branch are unidirectional current branch road, are configured to allow direction
Contrary electric current passes through.
Preferably, first current branch includes power transistor, power during first current branch conductive
Transistor works in amplification mode.
Preferably, the reduction voltage circuit has first end and the second end,
First current branch includes：First switch pipe and first resistor, wherein, the electric current of the first switch pipe is defeated
Enter end to electrically connect with the first end, current output terminal is electrically connected with second end, control end and the one of the first resistor
End electrical connection, the other end of the first resistor is electrically connected with the current input terminal；
Second current branch includes：Second switch pipe and second resistance, wherein, the electric current of the second switch pipe is defeated
Enter end to electrically connect with second end, current output terminal is electrically connected with the first end, control end and the one of the second resistance
End electrical connection, the other end of the second resistance is electrically connected with the current input terminal of the second switch pipe.
Preferably, the pressure drop between the current input terminal and current output terminal of the first switch pipe and second switch pipe
Pressure drop between current input terminal and current output terminal is equal.
Preferably, the motor is connected with the reduction voltage circuit.
Preferably, the motor-drive circuit also includes the two-way exchange switch connected with the motor and switch control rule electricity
Road, the control end that the control output end of the ON-OFF control circuit switchs with the two-way exchange is electrically connected.
Preferably, the motor-drive circuit also includes magnetic field detection circuit, for detecting the rotor field of the motor
And export corresponding magnetic field detection information to the ON-OFF control circuit.
Preferably, the ON-OFF control circuit is configured at least based on the magnetic field detection information, from the switch
The control end that the control output end of control circuit is switched to the two-way exchange flows out the first state of driving current and from described
Two-way exchange switch control output end from control end to the ON-OFF control circuit flow into driving current the second state between cut
Change.
Preferably, the motor and two-way exchange switch are series between an external ac power source, the switch control
Circuit processed is configured to the change in polarity based on the AC power and the magnetic field detection information in the first state and institute
State and switch between the second state.
Preferably, the ON-OFF control circuit includes first switch and second switch, the first switch and the control
Output end is connected in the first current path, and the second switch is connected to logical with first electric current with the control output end
In road in the second contrary current path of the sense of current, the control of the first switch and second switch in the magnetic field detection information
Selectively turn under system.
Preferably, there is the ON-OFF control circuit the first electric current for flowing outwardly electric current from the control output end to lead to
Road, the second current path that electric current is flowed inward into from the control output end and it is connected to first current path and
Switch in the one of path of two current paths, the switch is controlled by the magnetic field detection information so that the first electric current leads to
Road and the second current path are selectively turned on.
Preferably, switch is not set in first current path and the second current path other in which path.
Preferably, it is positive half period and the magnetic field detection that the ON-OFF control circuit is configured in the AC power
Rotor field described in electric circuit inspection is the first polarity or the AC power is negative half-cycle and magnetic field detection circuit inspection
It is second polarity chron opposite polarity with described first to survey the rotor field, makes the control output end flow through driving current,
When the AC power is for positive half period and rotor field is the second polarity, or the AC power is negative half-cycle and rotor
Magnetic field is the first polarity chron, makes the control output end without driving a current through.
Preferably, the motor-drive circuit also includes：The rectification circuit connected with the reduction voltage circuit.
A kind of integrated circuit, including：
Housing, the semiconductor chip in housing, the input port stretched out from the housing and output port and set
Electronic circuit on semiconductor chip, wherein, the electronic circuit includes reduction voltage circuit, and the reduction voltage circuit has selective
First current branch and the second current branch of conducting.
Preferably, the reduction voltage circuit has the feature of reduction voltage circuit described in any of the above-described electric machine assembly.
Preferably, the electronic circuit also includes magnetic field detection circuit, ON-OFF control circuit, two-way exchange switch, rectification
It is part or all of in circuit.
Preferably, it is fixed with heat sink on the housing.
A kind of application apparatus with electric machine assembly described in any of the above-described.
Preferably, the application apparatus is pump, fan, household electrical appliance or vehicle.
Preferably, the motor in the electric machine assembly is single-phase permanent brushless motor.
The utility model embodiment allow reduction voltage circuit be integrated in special IC, reduce circuit complexity and into
This.
Description of the drawings
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing for providing.
The structural representation of the electric machine assembly that Fig. 1 is provided for the utility model one embodiment；
The structural representation of the electric machine assembly that Fig. 2 is provided for the utility model another embodiment；
The structural representation of the electric machine assembly that Fig. 3 is provided for the utility model another embodiment；
The structural representation of motor in the electric machine assembly that Fig. 4 is provided for the utility model one embodiment；
The structural representation of the electric machine assembly that Fig. 5 is provided for the utility model further embodiment；
The structural representation of the electric machine assembly that Fig. 6 is provided for the utility model another embodiment；
The structural representation of the electric machine assembly breaker in middle control circuit that Fig. 7 is provided for the embodiment of the utility model one；
The structural representation of the electric machine assembly breaker in middle control circuit that Fig. 8 is provided for another embodiment of the utility model；
The structural representation of the electric machine assembly breaker in middle control circuit that Fig. 9 is provided for the another embodiment of the utility model；
Figure 10 is the structural representation of the electric machine assembly breaker in middle control circuit of the utility model another embodiment；
The structural representation of the electric machine assembly that Figure 11 is provided for the utility model further embodiment；
In the electric machine assembly that Figure 12 is provided for the utility model one embodiment, the structural representation of rectification circuit；
In the electric machine assembly that Figure 13 is provided for the utility model another embodiment, the structural representation of rectification circuit；
A kind of physical circuit schematic diagram of electric machine assembly that Figure 14 is provided for the utility model embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 1 and Fig. 2 is referred to, a kind of structural representation of the electric machine assembly provided for the utility model embodiment, the electricity
Thermomechanical components include motor 100 and motor-drive circuit 200, and specifically, the motor-drive circuit 200 includes reduction voltage circuit 10,
The reduction voltage circuit 10 has first current branch 101 and the second current branch 102 of selective conducting.
Preferably, first current branch 101 and the second current branch 102 of the offer of the utility model embodiment are unidirectionally
Current branch, is configured to allow electric current in opposite direction to pass through, and arrow is pointed in such as Fig. 2, the electric current of the first current branch 101
Flow through for direction from left to right, the second current branch 102 flows through for dextrosinistral direction, it is of course also possible to be first electric
The electric current of stream branch road 101 flows through for dextrosinistral direction, now, it is desirable to which the electric current of the second current branch 102 is for from left to right
Direction flow through, i.e., the first current branch 101 is contrary with the current trend of the second current branch 102.
On the basis of above-described embodiment, in one embodiment of the present utility model, the He of the first current branch 101
The pressure drop that second current branch 102 is produced is equal, but the utility model is not limited to this, specifically depends on the circumstances.
Preferably, first current branch 101 includes power transistor, when the first current branch 101 is turned on, its electric current
Along a direction by power transistor, the power transistor can be made to work in amplification mode so that the second current branch produces institute
The pressure drop for needing.Second current branch can also include power transistor, and when the second current branch 102 is turned on, its electric current is along another
Direction can also make its power transistor work in amplification mode so that needed for the generation of the second current branch by the power transistor
Pressure drop.And, power in the current direction of the power transistor in second current branch 102 and the first current branch 101
The flow direction of the middle electric current of transistor is contrary.
In the utility model embodiment, when the first current branch or the second current branch conductive, its power crystal pipe portion
Divide conducting, under being operated in amplification mode, base current very little, the equivalent resistance between collector and emitter is very big, therefore
Very big pressure drop can be produced between collector and emitter, so as to realize step-down.
Fig. 3 illustrates a kind of specific implementation of reduction voltage circuit 10 that the utility model embodiment is provided.The step-down electricity
Road 10 has first end A and the second end B.First current branch 101 includes：First switch pipe Q1 and first resistor Ra, wherein, institute
The current input terminal (i.e. the colelctor electrode of first switch pipe Q1) for stating first switch pipe Q1 is electrically connected with first end A, and electric current is defeated
Go out end (i.e. the emitter stage of first switch pipe Q1) to electrically connect with the second end B, control end (i.e. the base stage of first switch pipe Q1)
Electrically connect with one end of first resistor Ra, the other end of first resistor Ra (is depressured electricity with the current input terminal
First end A on road 10) electrical connection.
Second current branch 102 includes：Second switch pipe Q2 and second resistance Rb, wherein, the second switch pipe
The current input terminal (i.e. the colelctor electrode of second switch pipe Q2) of Q2 is electrically connected with the second end B, and (i.e. second opens current output terminal
Close the emitter stage of pipe Q2) electrically connect with first end A, control end (i.e. the base stage of second switch pipe Q2) and the second resistance
One end electrical connection of Rb, current input terminal (the i.e. reduction voltage circuit of the other end of second resistance Rb and the second switch pipe
10 the second end B) electrical connection.
It should be noted that in the utility model embodiment, be preferable to provide first switch pipe current input terminal and
Pressure drop between pressure drop between current output terminal and the current input terminal and current output terminal of second switch pipe is equal, certainly,
Can also be different with the pressure drop of the second current branch according to actual circuit needs, the first current branch of setting, the utility model
This is not limited, is specifically depended on the circumstances.
In any of the above-described embodiment, optionally, the motor 100 is series relationship with the reduction voltage circuit 10, is referred to
Fig. 1.In a concrete application example of the present utility model, the motor 100 is synchronous motor, it will be understood that this practicality is new
Reduction voltage circuit in the motor-drive circuit 200 of type is applicable not only to synchronous motor, is also applied for other kinds of permanent magnet AC
Motor.The synchronous motor include stator and can relative stator rotation rotor.Stator has stator core and is set around stator
Stator winding on iron core.Stator core can be made up of soft magnetic materials such as pure iron, cast iron, cast steel, electrical sheet, silicon steel.Rotor has
Have permanent magnet, when stator winding is connected with AC power, rotor in steady-state process with the rotating speed constant-speed operation of 60f/p circle/minutes,
Wherein f is the frequency of the AC power, and p is the number of pole-pairs of rotor.
On the basis of above-described embodiment, in one embodiment of the present utility model, as shown in figure 5, the motor drives
Dynamic circuit 200 also includes the two-way exchange switch 20 connected with the motor 100 and ON-OFF control circuit 30, wherein, it is described to open
The control output end for closing control circuit 30 electrically connects with the control end of two-way exchange switch 20, with according to predetermined way control
The two-way exchange switchs 20 on or off.In one embodiment, ON-OFF control circuit 30 for example can be by microcontroller
Realize.
The two-way exchange switch 20 is preferably three terminal bidirectional IGCT (TRIAC), and two anode connects respectively section
Point A and node C, its control pole connects the ON-OFF control circuit.It is appreciated that the controllable bidirectional alternating-current switch may include by
Mos field effect transistor, silicon controlled rectifier (SCR), three terminal bidirectional IGCT, insulated gate bipolar transistor,
One or more in bipolar junction transistor, thyristor, optic coupling element composition can allow the two-way electronics for flowing through of electric current
Switch.For example, two mos field effect transistor can constitute controllable bidirectional alternating-current switch；Two controllable silicons are whole
Stream device can constitute controllable bidirectional alternating-current switch；Two insulated gate bipolar transistors can constitute controllable bidirectional alternating-current switch；Two
Bipolar junction transistor can constitute controllable bidirectional alternating-current switch.
On the basis of above-described embodiment, in one embodiment of the present utility model, as shown in fig. 6, the motor drives
Dynamic circuit 200 also includes：Magnetic field detection circuit 40, for detecting the rotor field of the motor 100 and to the switch control rule
Circuit 30 exports corresponding magnetic field detection information.
Specifically, in one embodiment of the present utility model, the magnetic field detection circuit 40 includes：Magnetic field detection unit
Part, for detecting rotor field and converting thereof into electric signal；Signal processing unit, does for being amplified to the electric signal
Disturb；And AD conversion unit, for the electric signal after amplifying and going to disturb to be converted to into the magnetic field detection information, for
For only needing the application of polarity of the magnetic field of identification rotor field, the magnetic field detection information can be switching mode data signal.
Field sensing component preferably can be Hall Plate.
In the above-described embodiments, the ON-OFF control circuit 30 is configured at least be based on the magnetic field detection information,
From the control output end of the ON-OFF control circuit 30 to the two-way exchange, the control end of switch 20 flows out the of driving current
One state and the control end from two-way exchange switch 20 are flowed into the control output end of the ON-OFF control circuit 30 and driven
Run under second state at least one of which state of electric current.In a preferred embodiment, the ON-OFF control circuit 30
It is configured to switch between first state and the second state.What deserves to be explained is, in the utility model embodiment, the switch control
The switchover operation between first state and the second state of circuit processed 30, however it is not limited to which one of state is switched to immediately separately after terminating
The situation of one state, also terminates the situation that rear separated in time switches to again another state including one of state.
In one preferably application example, the control output end of the ON-OFF control circuit 30 in the interval time of two state switchings
Without output.
On the basis of above-described embodiment, in one embodiment of the present utility model, the ON-OFF control circuit 30 is wrapped
Include：First switch and second switch, the first switch is connected in the first current path with the control output end, and described
Two switches are connected to second current path in opposite direction with first current path with the control output end, and described first
Switch and second switch are selectively turned under the control of the magnetic field detection information.Preferably, the first switch can be with
For triode, the second switch can not be limited this for triode or diode, the utility model, optionally and
It is fixed.
Specifically, in one embodiment of the present utility model, as shown in fig. 7, the first switch 31 and second switch
32 is the semiconductor switch of a pair of complementations.The first switch 31 is low level conducting, and the second switch 32 is led for high level
It is logical, wherein, the first switch 31 is connected in the first current path with the control output end Pout, the second switch 32
It is connected in the second current path with the control output end Pout, the first switch 31 and the second switch 32 two are opened
The control end of pass is all connected with magnetic field detection circuit 40, current input terminal electrical connection high voltage (such as direct current of first switch 31
Power supply), current output terminal is connected with the current input terminal of second switch 32, and the current output terminal electrical connection of second switch 32 is relatively low
Voltage (such as).If the magnetic field detection information of the output of magnetic field detection circuit 40 is low level, first switch 31 is turned on, the
Two switches 32 disconnect, and driving current is flowed outwardly from high voltage Jing first switches 31 and control output end Pout, if the magnetic
The magnetic field detection information of the field detection output of circuit 40 is high level, and second switch 32 is turned on, and first switch 31 disconnects, driving current
Control output end Pout is flowed into from the control end of two-way exchange switch 20 and flow through second switch 32.Preferably, in this reality
With in new one embodiment, first switch 31 is positive channel mos field effect transistor in the example of Fig. 7
Pipe (p-type MOSFET), second switch 32 is negative channel mos field-effect transistor (N-type MOSFET).Can be with
It is understood by, in other embodiments, first switch and second switch can also be other kinds of semiconductor switch, for example may be used
To be other field-effect transistors such as junction field effect transistor (JFET) or metal semiconductor field effect transis (MESFET), this reality
This is not limited with new.
In another embodiment of the present utility model, as shown in figure 8, the first switch 31 is opening for high level conducting
Guan Guan, the second switch 32 is one-way conduction diode, the control end of first switch 31 and the negative electrode connection of second switch 32
Magnetic field detection circuit 40.The current input terminal connection external ac power source of first switch 31, the current output terminal of first switch 31
It is all connected with control output end Pout with the anode of second switch 32.Wherein, the first switch 31 and the control output end
Pout is connected in the first current path, the control output end Pout, the second switch 32 and the magnetic field detection circuit
40 are connected in the second current path, if the magnetic field detection information of the magnetic field detection circuit 40 output is high level, first opens
Close 31 to turn on, second switch 32 disconnects, and driving current is from external power source Jing first switches 31 and control output end Pout to outflow
Go out, if the magnetic field detection information of the magnetic field detection circuit 40 output is low level, second switch 32 is turned on, and first switch 31 is broken
Open, driving current flows into control output end Pout and flows through second switch 32 from the control end of two-way exchange switch 20.Can manage
Solution, in other embodiment of the present utility model, the first switch 31 and the second switch 32 can also be other structures,
The utility model is not limited this, is specifically depended on the circumstances.
In another embodiment of the present utility model, the ON-OFF control circuit 30 has from the control output end
Pout flow outwardly electric current the first current path, flow inward into from the control output end Pout electric current the second electric current lead to
Road and the switch being connected in first current path and the one of path of the second current path, first electric current
Switch is not set in path and the second current path in another path, the ON-OFF control circuit 30 is by the magnetic field detection circuit
The magnetic field detection information control of 40 outputs so that the first current path and the second current path are selectively turned on.
Implement as one kind, as shown in figure 9, the ON-OFF control circuit 30 includes a unidirectional conducting switch 33, it is single
Guide opens up pass 33 and is connected in the first current path with control output end Pout, and its current input terminal can connect magnetic field detection electricity
The output end on road 40, the output end of magnetic field detection circuit 40 can also Jing resistance R1 and control output end Pout be connected to and described the
In one current path the second current path in opposite direction.Unidirectional conducting switch 33 is led when magnetic field induction signal is high level
Lead to, driving current Jing unidirectional conducting switch 33 and control output end Pout are flowed outwardly, the magnetic field induction signal is low level
When, unidirectional conducting switch 33 disconnects, and driving current flows into control output end Pout and flow through resistance R1 and magnetic field detection from outside
Circuit 40.Used as a kind of replacement, the resistance R1 in second current path can also replace with anti-with unidirectional conducting switch 33
To another unidirectional conducting switch in parallel.So, the driving current for flowing out from control output end and the driving current of inflow are more
Balance, but the utility model is not limited this.
In another kind is implemented, as shown in Figure 10, the ON-OFF control circuit 30 includes that differential concatenation is examined in magnetic field
Diode D1 and D2 between the output end and control output end Pout of slowdown monitoring circuit 40 and the diode D1 and D2 parallel connection connected
The resistance R1 and resistance R2 being connected between the common port of diode D1 and D2 and external power source Vcc, wherein, diode D1
Negative electrode be connected with the output end of magnetic field detection circuit 40.Diode D1 is controlled by magnetic field detection circuit 40.In magnetic field detection electricity
Diode D1 cut-offs during the output high level of road 40, it is defeated from controlling that driving current flows into Jing resistance R2 and diode D2 from power Vcc
Go out and hold Pout to flow outwardly, during the output of magnetic field detection circuit 40 low level, driving current flows into control output end from outside
Pout simultaneously flows through resistance R1 and magnetic field detection circuit 40.
On the basis of any of the above-described embodiment, in one embodiment of the present utility model, as shown in fig. 6, the electricity
Machine 100 and two-way exchange switch 20 are series between an external ac power source 300, and the ON-OFF control circuit 30 is configured
It is the change in polarity and the magnetic field detection information based on the AC power 300 in the first state and second state
Between switch.
On the basis of above-described embodiment, in one embodiment of the present utility model, the quilt of the ON-OFF control circuit 30
It is that positive half period and the magnetic field detection circuit 40 detect the rotor field polarity for the to be configured in the AC power 300
One polarity chron, or the AC power 300 is for negative half-cycle and the magnetic field detection circuit 40 detects the rotor field pole
Property is second polarity chron opposite polarity with described first, makes the control output end flow through driving current, when the alternating current
Source 300 is positive half period and rotor field polarity is the second polarity, or the AC power 300 is negative half-cycle and rotor magnetic
Polarity is the first polarity chron, makes the control output end without driving a current through.What deserves to be explained is, AC power 300 is
Positive half period and rotor field are the first polarity, or AC power 300 is negative half-cycle and rotor field is the second polarity chron,
Driving current is flow through in the control output end had both included that there was drive control output end in the whole duration section of above-mentioned two situations
The situation that streaming current flows through, also including in above-mentioned two situations control output end has what is driven a current through only in part-time section
Situation.
On the basis of any of the above-described embodiment, in one embodiment of the present utility model, as shown in figure 11, the electricity
Drive circuit also includes：The rectification circuit 60 connected with the reduction voltage circuit 10, rectification circuit 60 is used for the alternating current
The AC signal of the output of source 300 is converted to direct current signal.
It should be noted that in the utility model embodiment, the input of the rectification circuit 60 can include connection
The first input end of AC power 300 and the second input.In the utility model, input connection AC power 300 both included
The situation that input is directly connected to the two ends of AC power 300, also including input and motor joining in the two ends of AC power 300
Situation, the utility model do not limit this, specifically depends on the circumstances.As long as ensureing that the rectification circuit 60 can be by institute
The AC signal for stating the output of AC power 300 is converted to direct current signal.
It is as shown in figure 12, described whole in a specific embodiment of the present utility model on the basis of above-described embodiment
Current circuit 60 includes：Full-wave rectification bridge 61 and the voltage regulation unit 62 being connected with the output of the full-wave rectification bridge 61, wherein, institute
Full-wave rectification bridge 61 is stated for the alternating current that the AC power 300 is exported to be converted into into direct current, the voltage regulation unit 62 is used
It is stable in values in the direct current signal for exporting the full-wave rectification bridge 61.
Figure 13 illustrates a kind of physical circuit of rectification circuit 60, wherein, voltage regulation unit 62 includes being connected to full-wave rectification bridge
Zener diode 621 between 61 two output ends, the full-wave rectification bridge 61 includes：The He of first diode 611 of series connection
Second diode 612 and the 3rd diode 613 and the 4th diode 614 of series connection；First diode 611 and described
The common port of two diodes 612 is electrically connected with the first input end VAC+；3rd diode 613 and the four or two pole
The common port of pipe 614 is electrically connected with the second input VAC-.
Wherein, the input of first diode 611 is electrically connected to form entirely with the input of the 3rd diode 613
The ground connection output end of ripple rectifier bridge, the output end of second diode 612 is electrically connected with the output end of the 4th diode 614
The voltage output end VDD to form full-wave rectification bridge is met, Zener diode 621 is connected to second diode 612 and the 4th 2
Between the common port of the common port of pole pipe 614 and first diode 611 and the 3rd diode 613.Need explanation
It is that in the utility model embodiment, the power supply terminal of the ON-OFF control circuit 30 can be defeated with the voltage of full-wave rectification bridge 61
Go out end electrical connection.
Accordingly, the utility model embodiment additionally provides a kind of electric machine assembly provided with any of the above-described embodiment
Application apparatus.Preferably, the application apparatus is pump, fan, household electrical appliance or vehicle, and the utility model is not limited this
It is fixed, specifically depend on the circumstances.
Motor on the basis of above-described embodiment, in one embodiment of the present utility model, in the electric machine assembly
For single-phase permanent brushless motor.But the utility model is not limited this, specifically depend on the circumstances.In sum, this practicality
The electric machine assembly of new embodiment is extended to the function of existing motor-drive circuit, can reduce integrated circuit cost, carries
High circuit reliability.
Additionally, the utility model embodiment additionally provides a kind of integrated circuit, including：Housing, partly leading in housing
Body substrate, the input port stretched out from the housing and output port and the electronic circuit on semiconductor chip, wherein,
As shown in figure 14, the electronic circuit includes reduction voltage circuit 10, and the reduction voltage circuit has first electric current of selective conducting
Road and the second current branch.It should be noted that on the basis of above-described embodiment, in one embodiment of the present utility model
In, the reduction voltage circuit has the feature of reduction voltage circuit described in the electric machine assembly that any of the above-described embodiment is provided.
The reduction voltage circuit of the utility model embodiment can be integrated in integrated circuit, can fix scattered on the housing of integrated circuit
Hot plate, reduction voltage circuit can be radiated by heat sink, be damaged with avoiding lsi internal circuit temperature too high.
On the basis of above-described embodiment, in one embodiment of the present utility model, Figure 14, the electric wire are referred to
Road also include magnetic field detection circuit 40, ON-OFF control circuit 30, the two-way exchange switch 20, rectification circuit (in figure by D2,
D3, D4 and D5 composition circuit part) in it is part or all of.Wherein, the magnetic field detection circuit, ON-OFF control circuit,
Described in the electric machine assembly that the two-way exchange switch, the 26S Proteasome Structure and Function of rectification circuit are provided with reference to any of the above-described embodiment
Magnetic field detection circuit, ON-OFF control circuit, the two-way exchange switch, the 26S Proteasome Structure and Function of rectification circuit, the utility model pair
This is no longer repeated one by one.
On the basis of any of the above-described embodiment, in one embodiment of the present utility model, it is fixed with the housing
Heat sink, for the heat that the electronic circuit is produced to be dispersed in external environment, in case the electronic circuit temperature is too high,
The electronic circuit is caused to damage.
In another embodiment, motor can with two-way admittance switch be connected between node A and node C, node A and
Node C can respectively connect the two ends of AC power.
In sum, this application provides a kind of electric machine assembly, integrated circuit and the application apparatus including the electric machine assembly,
Wherein, the electric machine assembly includes motor and motor-drive circuit, and the motor-drive circuit includes reduction voltage circuit, the step-down
Circuit has first current branch and the second current branch of selective conducting.The electric machine assembly of the utility model embodiment will drop
Volt circuit is integrated in special IC, reduces the complexity and cost of circuit.
For convenience of description, it is divided into various modules with function when describing system above to describe respectively.Certainly, this is being implemented
The function of each module can be realized in same or multiple softwares and/or hardware during application.
Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to contain
Lid nonexcludability is included, so that a series of process, method, article or equipment including key elements not only will including those
Element, but also including other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case of without departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (22)
1. a kind of electric machine assembly, including motor and motor-drive circuit, it is characterised in that the motor-drive circuit includes step-down
Circuit, the reduction voltage circuit has first current branch and the second current branch of selective conducting.
2. electric machine assembly as claimed in claim 1, it is characterised in that first current branch and the second current branch are single
To current branch, it is configured to allow electric current in opposite direction to pass through.
3. electric machine assembly as claimed in claim 2, it is characterised in that first current branch includes power transistor, institute
The power transistor works in amplification mode when stating the first current branch conductive.
4. electric machine assembly as claimed in claim 1, it is characterised in that the reduction voltage circuit has first end and the second end,
First current branch includes：First switch pipe and first resistor, wherein, the current input terminal of the first switch pipe
Electrically connect with the first end, current output terminal is electrically connected with second end, control end is electric with one end of the first resistor
Connection, the other end of the first resistor is electrically connected with the current input terminal；
Second current branch includes：Second switch pipe and second resistance, wherein, the current input terminal of the second switch pipe
Electrically connect with second end, current output terminal is electrically connected with the first end, control end is electric with one end of the second resistance
Connection, the other end of the second resistance is electrically connected with the current input terminal of the second switch pipe.
5. electric machine assembly as claimed in claim 4, it is characterised in that the current input terminal and electric current of the first switch pipe is defeated
The pressure drop gone out between end is equal with the pressure drop between the current input terminal and current output terminal of second switch pipe.
6. the electric machine assembly as described in any one of claim 1 to 5, it is characterised in that the motor and the reduction voltage circuit string
Connection.
7. electric machine assembly as claimed in claim 6, it is characterised in that the motor-drive circuit also includes and the motor string
The two-way exchange switch of connection and ON-OFF control circuit, the control output end of the ON-OFF control circuit switchs with the two-way exchange
Control end electrical connection.
8. electric machine assembly according to claim 7, it is characterised in that the motor-drive circuit also includes magnetic field detection electricity
Road, for detecting the rotor field of the motor and to the ON-OFF control circuit exporting corresponding magnetic field detection information.
9. electric machine assembly according to claim 8, it is characterised in that the ON-OFF control circuit is configured at least be based on
The magnetic field detection information, in the control end stream switched to the two-way exchange from the control output end of the ON-OFF control circuit
Go out the controlled output of the first state and the control end from two-way exchange switch of driving current to the ON-OFF control circuit
Switch between the second state of end inflow driving current.
10. electric machine assembly according to claim 9, it is characterised in that the motor and two-way exchange switch series connection
Between an external ac power source, the ON-OFF control circuit is configured to based on the change in polarity of the AC power and described
Magnetic field detection information switches between the first state and second state.
11. electric machine assemblies according to claim 9, it is characterised in that the ON-OFF control circuit include first switch and
Second switch, the first switch is connected in the first current path with the control output end, the second switch with it is described
Control output end is connected in the second current path contrary with the sense of current in first current path, the first switch
Selectively turn under the control of the magnetic field detection information with second switch.
12. electric machine assemblies according to claim 9, it is characterised in that the ON-OFF control circuit has from the control
Output end flow outwardly electric current the first current path, flow inward into from the control output end electric current the second current path,
And the switch being connected in first current path and the one of path of the second current path, the switch is by the magnetic
Field detection information control so that the first current path and the second current path are selectively turned on.
13. electric machine assemblies according to claim 12, it is characterised in that first current path and the second current path
Switch is not set in other in which path.
14. electric machine assemblies according to claim 10, it is characterised in that the ON-OFF control circuit is configured to described
AC power is positive half period and rotor field described in the magnetic field detection electric circuit inspection is the first polarity or the alternating current
Source is for negative half-cycle and rotor field described in the magnetic field detection electric circuit inspection is second polarity opposite polarity with described first
When, make the control output end flow through driving current, when the AC power is for positive half period and rotor field is the second polarity,
Or the AC power is for negative half-cycle and rotor field is the first polarity chron, makes the control output end without driving current stream
Cross.
15. electric machine assemblies according to claim 8, it is characterised in that the motor-drive circuit also includes：With the drop
The rectification circuit of volt circuit series connection.
16. a kind of integrated circuits, it is characterised in that include：Housing, the semiconductor chip in housing, stretch from the housing
The input port for going out and output port and the electronic circuit on semiconductor chip, wherein, the electronic circuit includes drop
Volt circuit, the reduction voltage circuit has first current branch and the second current branch of selective conducting.
17. integrated circuits as claimed in claim 16, it is characterised in that the reduction voltage circuit has such as claim 2 to 6
The feature of reduction voltage circuit described in electric machine assembly.
18. integrated circuits according to claim 16, it is characterised in that the electronic circuit also includes magnetic field detection electricity
It is part or all of in road, ON-OFF control circuit, two-way exchange switch, rectification circuit.
19. integrated circuits according to claim 16, it is characterised in that be fixed with heat sink on the housing.
20. a kind of application apparatus, it is characterised in that with the electric machine assembly as described in any one of claim 1 to 15.
21. application apparatus according to claim 20, it is characterised in that the application apparatus is pump, fan, household electrical appliance
Or vehicle.
22. application apparatus according to claim 20, it is characterised in that the motor in the electric machine assembly is single-phase permanent
Brushless electric machine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/086422 WO2016019921A1 (en) | 2014-08-08 | 2015-08-07 | Motor assembly and integrated circuit for motor drive |
| CNPCT/CN2015/086422 | 2015-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206135752U true CN206135752U (en) | 2017-04-26 |
Family
ID=58028187
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620532604.5U Active CN205984965U (en) | 2015-08-07 | 2016-06-02 | Integrated circuit , motor element and have this motor element's application apparatus |
| CN201620700738.3U Expired - Fee Related CN206135752U (en) | 2015-08-07 | 2016-07-05 | Motor element , integrated circuit and application apparatus |
| CN201620702035.4U Expired - Fee Related CN206251005U (en) | 2015-08-07 | 2016-07-05 | Integrated circuit, motor-drive circuit, electric machine assembly and its application apparatus |
| CN201620707809.2U Expired - Fee Related CN205986683U (en) | 2015-08-07 | 2016-07-06 | Motor, drive circuit who is used for motor drive and integrated circuit |
| CN201620719758.5U Expired - Fee Related CN206135758U (en) | 2015-08-07 | 2016-07-08 | Application apparatus , motor and drive circuit thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620532604.5U Active CN205984965U (en) | 2015-08-07 | 2016-06-02 | Integrated circuit , motor element and have this motor element's application apparatus |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620702035.4U Expired - Fee Related CN206251005U (en) | 2015-08-07 | 2016-07-05 | Integrated circuit, motor-drive circuit, electric machine assembly and its application apparatus |
| CN201620707809.2U Expired - Fee Related CN205986683U (en) | 2015-08-07 | 2016-07-06 | Motor, drive circuit who is used for motor drive and integrated circuit |
| CN201620719758.5U Expired - Fee Related CN206135758U (en) | 2015-08-07 | 2016-07-08 | Application apparatus , motor and drive circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN205984965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452227A (en) * | 2014-08-08 | 2017-02-22 | 德昌电机(深圳)有限公司 | Motor assembly, integrated circuit and application equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687780A (en) * | 2017-08-25 | 2019-04-26 | 德昌电机(深圳)有限公司 | Motor and its driving circuit and driving method |
| CN109672373A (en) * | 2017-08-25 | 2019-04-23 | 德昌电机(深圳)有限公司 | Motor and its driving circuit and driving method |
| CN108594713B (en) * | 2018-05-14 | 2022-07-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor control method, dishwasher, and computer-readable storage medium |
-
2016
- 2016-06-02 CN CN201620532604.5U patent/CN205984965U/en active Active
- 2016-07-05 CN CN201620700738.3U patent/CN206135752U/en not_active Expired - Fee Related
- 2016-07-05 CN CN201620702035.4U patent/CN206251005U/en not_active Expired - Fee Related
- 2016-07-06 CN CN201620707809.2U patent/CN205986683U/en not_active Expired - Fee Related
- 2016-07-08 CN CN201620719758.5U patent/CN206135758U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452227A (en) * | 2014-08-08 | 2017-02-22 | 德昌电机(深圳)有限公司 | Motor assembly, integrated circuit and application equipment |
| CN106452227B (en) * | 2014-08-08 | 2020-11-06 | 德昌电机(深圳)有限公司 | Motor assembly, integrated circuit and application equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205984965U (en) | 2017-02-22 |
| CN205986683U (en) | 2017-02-22 |
| CN206135758U (en) | 2017-04-26 |
| CN206251005U (en) | 2017-06-13 |
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