CN205984965U - Integrated circuit , motor element and have this motor element's application apparatus - Google Patents
Integrated circuit , motor element and have this motor element's application apparatus Download PDFInfo
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- CN205984965U CN205984965U CN201620532604.5U CN201620532604U CN205984965U CN 205984965 U CN205984965 U CN 205984965U CN 201620532604 U CN201620532604 U CN 201620532604U CN 205984965 U CN205984965 U CN 205984965U
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- Control Of Motors That Do Not Use Commutators (AREA)
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Abstract
The embodiment of the utility model discloses integrated circuit, including this integrated circuit's motor element and have this motor element's application apparatus, this integrated circuit includes: the casing, set up in integrated circuit nude film in the casing reaches certainly a plurality of pins that the casing stretches out, the integrated circuit nude film electrically conductive backplate has and set up in electronic circuit on the electrically conductive backplate, a plurality of pins include input pin and output pin, and every pin is in the lead frame has in the casing, wherein, electrically conductive backplate with the lead frame electrical insulation of at least one the non - ground connection pin in a plurality of pins is fixed, thus avoid because electrically conductive backplate and connecting rather than fixed lead frame electricity leads to the short circuit takes place for integrated circuit.
Description
Technical field
This utility model is related to magnetic field detection technology field, more particularly, to a kind of integrated circuit, includes this integrated circuit
Electric machine assembly and the application apparatus with this electric machine assembly.
Background technology
Integrated circuit is widely used in modern industry and electronic product to measure electric current, position, side with induced field intensity
To etc. physical parameter.It is an important applied field of integrated circuit in electromechanics trade, in the motor, Magnetic Sensor can be used
Integrated circuit makees rotor magnetic pole position sensing.
Magnetic Sensor integrated circuit of the prior art is generally powered by DC source, has power pins, grounding pin
With magnetic field detection signal output pin, its integrated circuit die is fixed on the lead frame of grounding pin typically by conducting resinl
On.
Utility model content
This utility model one side provides a kind of integrated circuit, including：Housing, the integrated circuit being arranged in described housing
Nude film and the multiple pins stretching out from described housing, described integrated circuit die has conductive backings and is arranged at described conduction
Electronic circuit on backboard, the plurality of pin includes input pin and output pin, and each pin has in described housing
Lead frame, wherein, described conductive backings are exhausted with the lead frame electricity of at least one of the plurality of pin ungrounded pin
Edge is fixed.
Preferably, described conductive backings and the lead frame insulation of described output pin are fixed.
Preferably, described conductive backings and the lead frame of at least one of the plurality of pin pin are by non-conductive
Binding agent insulation is fixed.
Preferably, described electronic circuit has floating ground, and described floating ground is electrically connected with described conductive backings.
Preferably, described conductive backings are semiconductor chip, and described floating ground is electrically connected with described semiconductor chip.
Preferably, described conductive backings include：Semiconductor chip and deviate from described electric wire positioned at described semiconductor chip
The metal level of road side, described floating ground is electrically connected with described metal level.
Preferably, described electronic circuit has magnetic field detection circuit, for detecting external magnetic field and producing corresponding magnetic field
Detection information.
Preferably, described input pin includes the power input pin for connecting external power source；
Described electronic circuit also includes the rectification circuit being connected with described power input pin, and described rectification circuit has
One voltage output end and second voltage outfan, wherein, the output voltage of described first voltage outfan is more than described second electricity
The output voltage of pressure outfan, and described second voltage outfan is described floating ground.
Preferably, described electronic circuit also includes the output control circuit being connected with described rectification circuit, described output control
Circuit processed is used at least based on described magnetic field detection information, so that described integrated circuit is being born from described output pin to outside outflow
Current-carrying first state and the second state at least one of which state flowing into load current from outside to described output pin
Lower operation.
Preferably, described output control circuit is configured to, at least based on described magnetic field detection information, make described integrated electricity
The first state of load current is being flowed out and from outside to the inflow load of described output pin from described output pin to outside in road
Switchover operation between the second state of electric current.
Preferably, described power input pin is used for connecting external ac power source, and described output control circuit is configured to
Change in polarity based on described alternating current power supply and described magnetic field detection information, make described integrated circuit from described output pin to
The outside first state flowing out load current and from outside to described output pin flow into the second state of load current at least its
In run under a state.
Preferably, described output control circuit includes first switch and second switch, described first switch and described output
Pin is connected in the first current path, and described second switch and described output pin are connected to and described first current path side
To the second contrary current path, described first switch and second switch under the control of described magnetic field detection information optionally
Conducting.
Preferably, described output control circuit have from described output pin flow outwardly electric current the first current path,
Flow inward into the second current path of electric current from described output pin and be connected to described first current path and the second electric current
Switch in the one of path of path, described switch is controlled by the magnetic field detection information of described magnetic field detection circuit output, makes
Obtain the first current path and the conducting of the second current path selectivity.
Preferably, do not set switch in described first current path and the second current path other in which path.
This utility model another aspect provides a kind of electric machine assembly, and including motor and motor-drive circuit, described motor drives
Galvanic electricity road has the integrated circuit described in any of the above-described.
This utility model another further aspect provides a kind of application apparatus with above-mentioned electric machine assembly.
Preferably, described application apparatus is pump, fan, household electrical appliance or vehicle.
Compared with prior art, technique scheme has advantages below：
The integrated circuit that this utility model embodiment is provided, including：Housing, the integrated circuit being arranged in described housing
Nude film and the multiple pins stretching out from described housing, described integrated circuit die has conductive backings and is arranged at described conduction
Electronic circuit on backboard, the plurality of pin includes input pin and output pin, and each pin has in described housing
Lead frame, wherein, described conductive backings are exhausted with the lead frame electricity of at least one of the plurality of pin ungrounded pin
Edge is fixed, thus the lead frame electrical connection avoiding due to described conductive backings and being secured to, leads to described integrated circuit to be sent out
Raw short circuit.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the integrated circuit that Fig. 1 is provided by one embodiment of this utility model；
The structural representation of electronic circuit in the integrated circuit that Fig. 2 is provided by one embodiment of this utility model；
In the integrated circuit that Fig. 3 is provided by one embodiment of this utility model, the structure of described output control circuit is shown
It is intended to；
In the integrated circuit that Fig. 4 is provided by another embodiment of this utility model, the structure of described output control circuit
Schematic diagram；
In the integrated circuit that Fig. 5 is provided by another embodiment of this utility model, the structure of described output control circuit
Schematic diagram；
In the Magnetic Sensor integrated circuit that Fig. 5 A is provided by another embodiment of this utility model, described output control electricity
The structural representation on road；
The structural representation of the integrated circuit that Fig. 6 is provided by this utility model further embodiment；
The structural representation of the integrated circuit that Fig. 7 is provided by another embodiment of this utility model；
In the integrated circuit that Fig. 8 is provided by this utility model further embodiment, the structural representation of rectification unit；
In the integrated circuit that Fig. 9 is provided by one embodiment of this utility model, the structure of described magnetic field detection circuit is shown
It is intended to；
The structural representation of the electric machine assembly that Figure 10 is provided by one embodiment of this utility model；
In the electric machine assembly that Figure 11 is provided by one embodiment of this utility model, the structural representation of motor.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Elaborate a lot of details in the following description in order to fully understand this utility model, but this practicality is new
Type can also be different from alternate manner described here to implement using other, and those skilled in the art can be without prejudice to this reality
With doing similar popularization in the case of new intension, therefore this utility model is not limited by following public specific embodiment.
As shown in figure 1, this utility model embodiment provides a kind of integrated circuit, including：Housing 100, be arranged at described
Integrated circuit die 200 in housing 100 and the multiple pins 300 stretching out from described housing 100, described integrated circuit die
200 have conductive backings 201 and are arranged at electronic circuit 202 in described conductive backings 201, and the plurality of pin 300 wraps
Include input pin and output pin, each pin 300 has lead frame 400 in described housing 100, wherein, described conduction
Lead frame 400 electric insulation of the ungrounded pin of at least one of backboard 201 and the plurality of pin 300 is fixed.
It should be noted that in this utility model embodiment, on the direction perpendicular to described integrated circuit surface, when
When the lead frame 400 of the ungrounded pin of one of described conductive backings 201 and the plurality of pin 300 overlaps mutually, described
Lead frame 400 electric insulation of the ungrounded pin of one of conductive backings 201 and the plurality of pin 300 is fixed, when described
When the lead frame 400 of the more than one ungrounded pin in conductive backings 201 and the plurality of pin 300 overlaps mutually, described
Lead frame 400 electric insulation of conductive backings 201 and described more than one ungrounded pin is fixed, and this utility model is to this not
Limit, as long as ensureing that described conductive backings 201 and lead frame 400 electric insulation of the ungrounded pin being overlapped mutually with it are fixed
?.
Also, it should be noted on the basis of any of the above-described embodiment, in an embodiment of the present utility model, institute
Stating ungrounded pin can be input pin or output pin, when described ungrounded pin is input pin, described
Lead frame 400 insulation of conductive backings 201 and described input pin is fixed, when described ungrounded pin is output pin,
Lead frame 400 insulation of described conductive backings 201 and described output pin is fixed.Preferably, described conductive backings 201 and institute
State the fixing inclusion of lead frame 400 electric insulation of at least one of multiple pins 300 pin：Described conductive backings 201 and institute
The contact surface stating the lead frame 400 of at least one of multiple pins 300 pin is fixed by nonconductive adhesive insulation.
It should be noted that in any of the above-described embodiment, described electronic circuit 202 also has floating ground, described floating
Ground is electrically connected with described conductive backings 201.In an embodiment of the present utility model, described conductive backings 201 are partly to lead
Body substrate, described floating ground is electrically connected with described semiconductor chip；In another embodiment of the present utility model, described conduction
Backboard 201 includes：Semiconductor chip and the metal level deviating from described electronic circuit 202 side positioned at described semiconductor chip, institute
State floating ground to electrically connect with described metal level.This utility model does not limit to this, specifically depends on the circumstances.
On the basis of any of the above-described embodiment, in an embodiment of the present utility model, as shown in Fig. 2 described electricity
Sub-line road 202 has magnetic field detection circuit 20, for detecting external magnetic field and producing corresponding magnetic field detection information.In this enforcement
On the basis of example, in an embodiment of the present utility model, described input pin includes the power supply for connecting external power source
Input pin, described electronic circuit 202 also includes the rectification circuit 40 being connected with described power input pin, described rectification circuit
40 have first voltage outfan and second voltage outfan, and wherein, the output voltage of described first voltage outfan is more than institute
State the output voltage of second voltage outfan, and described second voltage outfan is described floating ground, i.e. described rectification circuit 40
There is high voltage outfan and low voltage outfan, wherein, described low voltage outfan is described floating ground terminal.
On the basis of above-described embodiment, in an embodiment of the present utility model, described electronic circuit 202 also includes
The output control circuit 30 being connected with described rectification circuit 40, described output control circuit 30 is used at least based on the inspection of described magnetic field
Measurement information, makes described integrated circuit flow out the first state of load current and from outside to institute from described output pin to outside
Run, preferably, described load current is also under the second state at least one of which state stating output pin inflow load current
Flow through described rectification circuit 40.
Preferably, described output control circuit 30 is configured to, at least based on described magnetic field detection information, make described integrated
Circuit is flowing out the first state of load current and is flowing into from outside to described output pin negative to outside from described output pin
Switchover operation between current-carrying second state.What deserves to be explained is, in this utility model embodiment, integrated circuit is in first state
And second switchover operation between state however it is not limited to one of state switches to the situation of another state immediately after terminating, also
Terminate the situation that rear separated in time switches to another state again including one of state.Preferably apply real at one
In example, in the interval time of two state switchings, the output port of integrated circuit no exports.
On the basis of any of the above-described embodiment, in an embodiment of the present utility model, described output control circuit
30 include：First switch and second switch, described first switch and described output pin are connected in the first current path, described
Second switch and described output pin are connected to second current path in opposite direction with described first current path, and described first
Switch and second switch selectively turn under the control of described magnetic field detection information.Preferably, described first switch is permissible
For audion, described second switch can be audion or diode, and this utility model does not limit to this, optionally and
Fixed.
Specifically, in an embodiment of the present utility model, as shown in figure 3, described first switch 31 and second switch
32 is the semiconductor switch of a pair of complementation.Described first switch 31 turns on for low level, and described second switch 32 is led for high level
Logical, wherein, described first switch 31 is connected in the first current path with described output pin Pout, described second switch 32 with
Described output pin Pout is connected in the second current path, described first switch 31 and described second switch 32 two switch
Control end is all connected with magnetic field detection circuit 20, and the current input terminal of first switch 31 connects high voltage (such as DC source), electricity
Stream outfan is connected with the current input terminal of second switch 32, and the current output terminal of second switch 32 connects low voltage (for example
Ground).If the magnetic field detection information of described magnetic field detection circuit 20 output is low level, first switch 31 turns on, second switch 32
Disconnect, load current flows outwardly from high voltage through first switch 31 and output pin Pout, if described magnetic field detection circuit
The magnetic field detection information of 20 outputs is high level, and second switch 32 turns on, and first switch 31 disconnects, and load current flows into from outside
Output pin Pout simultaneously flows through second switch 32.Preferably, in an embodiment of the present utility model, in the example of Fig. 3
One switch 31 is positive channel mos field-effect transistor (p-type MOSFET), and second switch 32 is negative passage gold
Belong to oxide semiconductor field effect transistor (N-type MOSFET).It is understood that in other embodiments, first switch and
Second switch can also be other kinds of semiconductor switch, for example, can be junction field effect transistor (JFET) or metal half
Other field-effect transistors such as conductor field effect transistor (MESFET), this utility model does not limit to this.
In another embodiment of the present utility model, as shown in figure 4, described first switch 31 is opening that high level turns on
Guan Guan, described second switch 32 is one-way conduction diode, and the negative electrode of the control end of first switch 31 and second switch 32 connects
Magnetic field detection circuit 20.The current input terminal of first switch 31 connects external power source, the current output terminal of first switch 31 and the
The anode of two switches 32 is all connected with output pin Pout.Wherein, described first switch 31 is connected with described output pin Pout
In the first current path, described output pin Pout, described second switch 32 and described magnetic field detection circuit 20 are connected to the
In two current paths, if the magnetic field detection information of described magnetic field detection circuit 20 output is high level, first switch 31 turns on, the
Two switch 32 disconnection, load current flows outwardly from second source 50 through first switch 31 and output pin Pout, if described magnetic
The magnetic field detection information of field testing circuit 20 output is low level, and second switch 32 turns on, and first switch 31 disconnects, load current
Flow into output pin Pout and flow through second switch 32 from outside.It is appreciated that in other embodiment of the present utility model, institute
Stating first switch 31 and described second switch 32 can also be other structures, and this utility model does not limit to this, specifically regards
Depending on situation.
In another embodiment of the present utility model, described output control circuit 30 has outside from described output pin
Flow out the first current path of electric current, flow inward into the second current path of electric current from described output pin and be connected to institute
State the switch in the first current path and the one of path of the second current path, described switch is by described magnetic field detection circuit 20
The magnetic field detection information of output controls so that the first current path and the second current path selectivity turn on.Preferably, described
Switch is not set in one current path and the second current path other in which path.
Implement as one kind, as shown in figure 5, described output control circuit 30 includes a unidirectional conducting switch 33, single
Guide is opened up pass 33 and is connected in the first current path with output pin Pout, and its current input terminal can connect magnetic field detection circuit
20 outfan, the outfan of magnetic field detection circuit 20 also can be connected to and the described first electricity through resistance R1 and output pin Pout
In logical circulation road the second current path in opposite direction.Unidirectional conducting switch 33 turns on when magnetic field induction signal is for high level, bears
Carry electric current to flow outwardly through unidirectional conducting switch 33 and output pin Pout, when described magnetic field induction signal is low level, unidirectional
Conducting switch 33 disconnection, load current flows into output pin Pout and flows through resistance R1 and magnetic field detection circuit 20 from outside.Make
Substitute for a kind of, the resistance R1 in described second current path can also replace with another with unidirectional conducting switch 33 reverse parallel connection
One unidirectional conducting switch.So, more balance from the output port load current flowing out and the load current flowing into, but this practicality
New this is not limited.
In another kind implements, as shown in Figure 5A, described output control circuit 30 includes differential concatenation in magnetic field inspection
Diode D1 and D2 between the outfan of the slowdown monitoring circuit 20 and output port Pout electricity in parallel with diode D1 and D2 connecting
Resistance R1 and be connected to resistance R2 between the common port of diode D1 and D2 and power Vcc, wherein, the negative electrode of diode D1
It is connected with the outfan of magnetic field detection circuit 20.Power Vcc connects the outfan of rectification circuit 40.Diode D1 is by magnetic field detection
Circuit 20 controls.The diode D1 cut-off in magnetic field detection circuit 20 output high level, load current flows into through electricity from power Vcc
Resistance R2 and diode D2 flows outwardly from output port Pout, during described magnetic field detection circuit 20 output low level, load current
Flow into output port Pout and flow through resistance R1 and magnetic field detection circuit 20 from outside.
On the basis of any of the above-described embodiment, in an embodiment of the present utility model, described input pin includes
For connecting the input pin of external ac power source, the change in polarity based on described alternating current power supply for the described output control circuit 30 and
Described magnetic field detection information, makes described integrated circuit switch at least between described first state and described second state.Optionally,
Described magnetic field detection circuit 20 is identical with the power supply of described output control circuit 30.
On the basis of above-described embodiment, in an embodiment of the present utility model, described output control circuit 30 quilt
Being configured in described alternating current power supply is that positive half period and described magnetic field detection circuit 20 detect that described external magnetic field polarity is first
Polarity chron, or described alternating current power supply be negative half-cycle and described magnetic field detection circuit 20 detect described external magnetic field polarity be with
Described first opposite polarity second polarity chron, makes described output pin flow through load current, when described alternating current power supply is just half
Cycle and external magnetic field polarity are the second polarity, or described alternating current power supply is negative half-cycle and external magnetic field polarity is the first pole
During property, described output pin no-load current is made to flow through.What deserves to be explained is, alternating current power supply is positive half period and external magnetic field is
First polarity, or alternating current power supply be negative half-cycle and external magnetic field be the second polarity chron, described output port flows through load electricity
Stream had both included output port in above-mentioned two situations whole persistent period section the situation that load current flows through, and also includes above-mentioned
In the case of two kinds, only in part-time section, output port has the situation that load current flows through.
On the basis of above-described embodiment, in an embodiment of the present utility model, described input pin can include
Connect the first input pin and second input pin of external ac power source.In this utility model, input pin connects external electrical
Source had both included the situation that input pin is directly connected to external power source two ends, also includes input pin and is serially connected with outward with external loading
The situation of portion's both ends of power, this utility model does not limit to this, specifically depends on the circumstances.It should be noted that in this reality
With in new embodiment, as shown in fig. 6, described rectification circuit 60 is used for the AC signal exporting described external ac power source 70
Be converted to direct current signal.
On the basis of above-described embodiment, in a preferred embodiment of the present utility model, continue as shown in fig. 6, institute
State the voltage regulator circuit 80 that integrated circuit also includes between described rectification circuit 60 and described magnetic field detection circuit 20, institute
State voltage regulator circuit 80 and be adjusted to second voltage for the first voltage that exports described rectification circuit 60, wherein, described the
Two voltages are the supply voltage of described magnetic field detection circuit 20, and described first voltage is the power supply electricity of described output control circuit 30
Pressure, and the magnitude of voltage of described first voltage is more than the magnitude of voltage of described second voltage, to reduce the power consumption of described integrated circuit, with
When ensure that integrated circuit has enough driving forces.
On the basis of any of the above-described embodiment, in a specific embodiment of the present utility model, as shown in fig. 7, institute
State rectification circuit 60 to include：Full-wave rectification bridge 61 and the voltage regulation unit 62 being connected with the output of described full-wave rectification bridge 61, its
In, the alternating current that described full-wave rectification bridge 61 is used for exporting described alternating current power supply 70 is converted into unidirectional current, described voltage regulation unit
62 direct current signals being used for exporting described full-wave rectification bridge 61 are stablized in values.
Fig. 8 illustrates a kind of physical circuit of rectification circuit 60, and wherein, voltage regulation unit 62 includes being connected to full-wave rectification bridge 61
Two outfans between Zener diode 621, described full-wave rectification bridge 61 includes：First diode 611 of series connection and the
3rd diode 613 of two diodes 612 and series connection and the 4th diode 614；Described first diode 611 and described second
The common port of diode 612 is electrically connected with described first input pin VAC+；Described 3rd diode 613 and described four or two pole
The common port of pipe 614 is electrically connected with described second input pin VAC-.
Wherein, the input of described first diode 611 and the input of described 3rd diode 613 are electrically connected to form entirely
The ground connection outfan of ripple rectifier bridge, the outfan of described second diode 612 and the outfan of described 4th diode 614 are electrically connected
Meet the voltage output end VDD forming full-wave rectification bridge, Zener diode 621 is connected to described second diode 612 and the 4th 2
Between the common port of pole pipe 614 and described first diode 611 and the common port of described 3rd diode 613.Need explanation
It is that, in this utility model embodiment, the power supply terminal of described output control circuit 30 can be defeated with the voltage of full-wave rectification bridge 61
Go out end electrical connection.
On the basis of any of the above-described embodiment, in an embodiment of the present utility model, as shown in figure 9, described magnetic
Field testing circuit 20 includes：Field sensing component 21, for detecting external magnetic field and converting thereof into the signal of telecommunication；Signal processing list
Unit 22, for being amplified to this signal of telecommunication disturbing；And AD conversion unit 23, for by after amplifying and going to disturb
The signal of telecommunication is converted to described magnetic field detection information, for the application only needing the polarity of the magnetic field identifying external magnetic field, described
Magnetic field detection information can be switching mode digital signal.Field sensing component 21 can be preferably Hall Plate.
It should be noted that it is individual in any of the above-described embodiment, when described input pin is included for connecting external communication
When the first input pin of power supply and the second input pin, the frequency of occurrences of described first state or the second state is exchanged with described
The frequency of power supply is proportional.It is understood that this utility model is not limited to this.
With reference to a concrete application, the integrated circuit that this utility model embodiment is provided is described.
This utility model embodiment additionally provides a kind of electric machine assembly, and described electric machine assembly includes：Motor and Motor drive
Circuit, described motor-drive circuit has the integrated circuit that any of the above-described embodiment is provided.Specifically, as shown in Figure 10, institute
State electric machine assembly to include：The two-way admittance that the motor 1 powered by an alternating current power supply 2 is connected with described motor 1 switchs 3, Yi Jiyi
The integrated circuit 4 being provided according to any of the above-described embodiment of this utility model, the output pin of described integrated circuit is two-way with described
The control end electrical connection of conducting switch 3.Preferably, two-way admittance switch 3 can be triac (TRIAC).
It is appreciated that two-way admittance switch also can be realized by other kinds of suitable switch, for example, can include the two of reverse parallel connection
Individual thyristor, and corresponding control circuit is set, the output signal of the output port of foundation integrated circuit is through described control
Circuit controls this two thyristors according to predetermined way.
Preferably, described electric machine assembly also includes reduction voltage circuit 5, for being supplied to institute by after the blood pressure lowering of described alternating current power supply 1
State integrated circuit 4.Integrated circuit 4 is installed near the rotor of motor 1 to perceive the changes of magnetic field of rotor.
On the basis of above-described embodiment, in a specific embodiment of the present utility model, described motor 1 is synchronous electricity
Machine, it will be understood that integrated circuit of the present utility model is applicable not only to synchronous motor, is also applied for other kinds of magneto
As DC brushless motor.As shown in figure 11, described synchronous motor include stator and can relative stator rotation rotor 11.Stator has
There is stator core 12 and be set around the stator winding 16 in stator core 12.Stator core 12 can be by pure iron, cast iron, cast steel, electricity
The soft magnetic materials such as work steel, silicon steel are made.Rotor 11 has permanent magnet, and when stator winding 16 is connected with alternating current power supply, rotor 11 is steady
The state stage, wherein f was the frequency of described alternating current power supply with the rotating speed constant-speed operation of 60f/p circle/minute, and p is the number of pole-pairs of rotor.
In the present embodiment, stator core 12 has two relative pole portions 14.Each pole portion has a polar arc face 15, the outer surface of rotor 11 with
Polar arc face 15 relatively, forms substantially uniform air gap between the two.Substantially homogeneous air gap alleged by the application, refers to stator and rotor
Between most of form even air gap, only fewer parts is non-homogeneous air gap.Preferably, the polar arc face 15 in stator poles portion sets
The starting groove 17 of indent, on polar arc face 15, the part in addition to starting groove 17 is then concentric with rotor.Above-mentioned configuration can form inequality
Even magnetic field is it is ensured that rotor its pole axis S1 when static tilts an angle it is allowed to motor with respect to the central shaft S2 in stator poles portion
When being energized every time in the presence of integrated circuit, rotor can have starting torque.The pole axis S1 of wherein rotor refers to two poles of rotor
Demarcation line between the different magnetic pole of property, the central shaft S2 in stator poles portion 14 refers to the line through two Ji Bu 14 centers of stator.
In the present embodiment, stator and rotor are respectively provided with two magnetic poles.It should be understood that in more embodiments, the magnetic of stator and rotor
Number of poles can also be unequal, and has more magnetic poles, such as four, six etc..
On the basis of above-described embodiment, in an embodiment of the present utility model, described output control circuit 30 quilt
Being configured in described alternating current power supply 2 is that positive half period and described magnetic field detection circuit 20 detect that the magnetic field of described p-m rotor is the
One polarity or described alternating current power supply 2 are the magnetic field that negative half-cycle and described magnetic field detection circuit 20 detect described p-m rotor
It is second polarity chron opposite polarity with described first, make the conducting of described two-way admittance switch 3.When described alternating current power supply 2
It is described first polarity for negative half-cycle and p-m rotor, or described alternating current power supply 2 is positive half period and described p-m rotor
For the second polarity chron, make the cut-off of described two-way admittance switch 3.
Preferably, described output control circuit 30 is configured to be located at positive half cycle in the signal of described alternating current power supply 2 output
Phase and described magnetic field detection circuit 20 detect that the magnetic field of described p-m rotor is the first polarity chron, and control electric current is by described integrated electricity
Road flows to described two-way admittance switch 3, and the signal in the output of described alternating current power supply 2 is located at negative half-cycle and described magnetic field detection
Circuit 20 detects that the magnetic field of described p-m rotor is second polarity chron opposite polarity with described first, and control electric current is by described double
Guide opens up pass 32 and flows to described integrated circuit.It is appreciated that p-m rotor is the first magnetic polarity and alternating current power supply is positive half cycle
Phase, or p-m rotor is when to be the second magnetic polarity and alternating current power supply be negative half-cycle, and described integrated circuit flows out or inflow current
Both include the situation having electric current to flow through in above-mentioned two situations whole persistent period section, also include in above-mentioned two situations only portion
There is the situation that electric current flows through in time segment.
In one preferred embodiment of this utility model, two-way admittance switch 3 adopts triac
(TRIAC), rectification circuit 40 adopts the circuit shown in Fig. 8, and output control circuit 30 adopts the circuit shown in Fig. 4, output control
In circuit 30, the current input terminal of first switch 31 connects the voltage output end of full-wave rectification bridge 61, and the electric current of second switch 32 is defeated
Go out the ground connection outfan that end connects full-wave rectification bridge 61.When the signal of alternating current power supply 2 output is located at positive half period and described magnetic field
During testing circuit 20 output low level, in output control circuit 30, first switch 31 turns on and second switch 32 disconnects, electric current according to
Secondary flow through alternating current power supply 2, motor 1, the first input end of integrated circuit 4, reduction voltage circuit (not shown), full-wave rectification bridge
61 the second diode 612 outfan, the first switch 31 of output control circuit 30, flow to two-way admittance switch from output pin
3 return to alternating current power supply 2.After TRIAC conducting, the series arm of reduction voltage circuit 5 and integrated circuit 4 formation is shorted, integrated circuit 4
Stop because of unpowered voltage exporting, and TRIAC is due to flowing through, and the electric current between two anode is sufficiently large (to maintain electricity higher than it
Stream), between control pole and its first anode no in the case of driving current, TRIAC remains on.When alternating current power supply 2 exports
Signal be located at negative half-cycle and described magnetic field detection circuit 20 output high level when, first switch 31 in output control circuit 30
Disconnect and second switch 32 turns on, electric current flows out from alternating current power supply 2, from two-way admittance switch 3 inflow output pins, through output control
The second switch 32 of circuit 30 processed, full-wave rectification bridge 61 ground connection outfan and the first diode 611, the first of integrated circuit 4
Input terminal, motor 1 return to alternating current power supply 2.Likewise, after TRIAC conducting, integrated circuit 4 stops exporting short because being shorted
Road, TRIAC3 then can be held on.Positioned at positive half period and described magnetic field detection circuit 20 is defeated for the signal exporting when alternating current power supply 2
Go out high level, or the signal of alternating current power supply 2 output is located at negative half-cycle and described magnetic field detection circuit 20 exports low level, defeated
Go out first switch 31 and second switch 32 in control circuit 30 all can not turn on, TRIAC ends.Thus, described output control electricity
Road 30 can change in polarity based on alternating current power supply 2 and magnetic field detection information, make described integrated circuit control two-way admittance switch 3 with
Predetermined way switches between conducting and cut-off state, and then controls the step mode of stator winding 16, makes the change that stator produces
Magnetizing field coordinates the magnetic field position of rotor, only drags rotor rotation along single direction, thus rotor when ensureing that motor is energized every time
There is fixing direction of rotation.
In the electric machine assembly of another embodiment of this utility model, motor can be series at outside with two-way admittance switch
Between alternating current power supply two ends, motor switchs, with two-way admittance, connect the first series arm being formed and reduction voltage circuit and integrated circuit
The second series arm being formed is in parallel.The output port of integrated circuit is connected with two-way admittance switch, controls two-way admittance switch
Switch between conducting and cut-off state in a predefined manner, and then control the step mode of stator winding.
Electric machine assembly in this utility model embodiment can be used for but is not limited to pump, fan, household electrical appliance, Che Dengshe
In standby, described household electrical appliance can be for example washing machine, dish-washing machine, smoke exhaust ventilator, exhaust fan etc..
In one preferred embodiment of this utility model, the low voltage end of rectification circuit 40 is floating ground, with integrated electricity
The conductive backings of road nude film are electrically connected with, and integrated circuit die can be fixed on output port Pout by nonconductive adhesive insulation
Lead frame on, thus avoiding output port Pout and floating ground short circuit.
Additionally, this utility model embodiment additionally provides and a kind of has electric machine assembly that any of the above-described embodiment is provided
Application apparatus.Preferably, this application apparatus is pump, fan, household electrical appliance or vehicle, and this utility model does not limit to this,
Specifically depend on the circumstances.
Understand in sum, the integrated circuit that this utility model embodiment is provided, including：Housing, it is arranged at described shell
Internal integrated circuit die and the multiple pins stretching out from described housing, described integrated circuit die have conductive backings and
It is arranged at the electronic circuit in described conductive backings, the plurality of pin includes input pin and output pin, and each pin exists
There is in described housing lead frame, wherein, the ungrounded pin of at least one of described conductive backings and the plurality of pin
Lead frame electric insulation fix, thus avoid due to described conductive backings and be secured to lead frame electrical connection, lead to
Described integrated circuit is short-circuited so that the IC after encapsulating scraps.
It should be noted that, although this utility model embodiment is so that described Application of integrated circuit is in the motor as a example to carry out
Illustrate, but the application of integrated circuit that this utility model embodiment is provided is not limited to this.
In this specification, various pieces are described by the way of going forward one by one, and what each some importance illustrated is and other parts
Difference, between various pieces identical similar portion mutually referring to.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or deposit between operating
In any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant are intended to
Comprising of nonexcludability, wants so that including a series of process of key elements, method, article or equipment and not only including those
Element, but also include 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 that limited by sentence "including a ..." it is not excluded that
Also there is other identical element including in the process of described key element, method, article or equipment.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or new using this practicality
Type.Multiple modifications to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to embodiment illustrated herein, and is to fit to and principles disclosed herein and new
The consistent scope the widest of clever feature.
Claims (17)
1. a kind of integrated circuit is it is characterised in that include：Housing, the integrated circuit die being arranged in described housing and from institute
State multiple pins that housing stretches out, described integrated circuit die has conductive backings and is arranged at the electricity in described conductive backings
Sub-line road, the plurality of pin includes input pin and output pin, and each pin has lead frame in described housing, its
In, the lead frame electric insulation of the ungrounded pin of at least one of described conductive backings and the plurality of pin is fixed.
2. integrated circuit as claimed in claim 1 is it is characterised in that the lead frame of described conductive backings and described output pin
Frame insulation is fixed.
3. integrated circuit as claimed in claim 1 it is characterised in that in described conductive backings and the plurality of pin at least
The lead frame of one pin is insulated by nonconductive adhesive and fixes.
4. integrated circuit as claimed in claim 1 is it is characterised in that described electronic circuit has floating ground, described floating ground
It is electrically connected with described conductive backings.
5. integrated circuit as claimed in claim 4 it is characterised in that described conductive backings be semiconductor chip, described floating
Ground is electrically connected with described semiconductor chip.
6. integrated circuit as claimed in claim 4 is it is characterised in that described conductive backings include：Semiconductor chip and being located at
Described semiconductor chip deviates from the metal level of described electronic circuit side, and described floating ground is electrically connected with described metal level.
7. integrated circuit as claimed in claim 1, it is characterised in that described electronic circuit has magnetic field detection circuit, is used for
Detection external magnetic field simultaneously produces corresponding magnetic field detection information.
8. integrated circuit as claimed in claim 4 is it is characterised in that described input pin is included for connecting external power source
Power input pin；
Described electronic circuit also includes the rectification circuit being connected with described power input pin, and described rectification circuit has the first electricity
Pressure outfan and second voltage outfan, wherein, the output voltage of described first voltage outfan is defeated more than described second voltage
Go out the output voltage at end, and described second voltage outfan is described floating ground.
9. integrated circuit as claimed in claim 8 is it is characterised in that described electronic circuit is also included with described rectification circuit even
The output control circuit connecing, described output control circuit is used at least based on described magnetic field detection information, makes described integrated circuit
Flowing out the first state of load current from described output pin to outside and from outside to described output pin inflow load electricity
Run under second state at least one of which state of stream.
10. integrated circuit according to claim 9 is it is characterised in that described output control circuit is configured at least base
In described magnetic field detection information, make described integrated circuit from described output pin to the outside first state flowing out load current
And switchover operation between the second state of load current is flowed into from outside to described output pin.
11. integrated circuits according to claim 9 are it is characterised in that described power input pin is used for connecting outside friendship
Stream power supply, described output control circuit is configured to the change in polarity and described magnetic field detection information based on described alternating current power supply,
Described integrated circuit is made to flow out the first state of load current and from outside to described output from described output pin to outside
Run under second state at least one of which state of pin inflow load current.
12. integrated circuits according to claim 9 it is characterised in that described output control circuit include first switch and
Second switch, described first switch and described output pin are connected in the first current path, and described second switch is defeated with described
Go out pin and be connected to second current path in opposite direction with described first current path, described first switch and second switch exist
Selectively turn under the control of described magnetic field detection information.
13. integrated circuits according to claim 9 are it is characterised in that described output control circuit has from described output
Pin flow outwardly electric current the first current path, flow inward into from described output pin electric current the second current path and
It is connected to the switch in described first current path and the one of path of the second current path, described switch is examined by described magnetic field
The magnetic field detection information of slowdown monitoring circuit output controls so that the first current path and the second current path selectivity turn on.
14. integrated circuits according to claim 13 are it is characterised in that described first current path and the second current path
Switch is not set in other in which path.
A kind of 15. electric machine assemblies it is characterised in that including motor and motor-drive circuit, described motor-drive circuit have as
Integrated circuit described in any one of claim 1 to 14.
A kind of 16. application apparatus with electric machine assembly as claimed in claim 15.
17. application apparatus according to claim 16 are it is characterised in that described application apparatus is pump, fan, household electrical appliance
Or vehicle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2015/086422 | 2015-08-07 | ||
| PCT/CN2015/086422 WO2016019921A1 (en) | 2014-08-08 | 2015-08-07 | Motor assembly and integrated circuit for motor drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205984965U true CN205984965U (en) | 2017-02-22 |
Family
ID=58028187
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620532604.5U Expired - Fee Related CN205984965U (en) | 2015-08-07 | 2016-06-02 | Integrated circuit , motor element and have this motor element's 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 |
| CN201620700738.3U Expired - Fee Related CN206135752U (en) | 2015-08-07 | 2016-07-05 | Motor element , integrated circuit and 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 After (4)
| 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 |
| CN201620700738.3U Expired - Fee Related CN206135752U (en) | 2015-08-07 | 2016-07-05 | Motor element , integrated circuit and 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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160018434A (en) * | 2014-08-08 | 2016-02-17 | 존슨 일렉트릭 에스.에이. | Drive circuit for a permanent magnet motor |
| 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 |
| 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 |
| 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 not_active Expired - Fee Related
- 2016-07-05 CN CN201620702035.4U patent/CN206251005U/en not_active Expired - Fee Related
- 2016-07-05 CN CN201620700738.3U patent/CN206135752U/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
Also Published As
| Publication number | Publication date |
|---|---|
| CN206135758U (en) | 2017-04-26 |
| CN205986683U (en) | 2017-02-22 |
| CN206135752U (en) | 2017-04-26 |
| CN206251005U (en) | 2017-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 |