CN1695287A - Generator-motor - Google Patents
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- CN1695287A CN1695287A CN 03824733 CN03824733A CN1695287A CN 1695287 A CN1695287 A CN 1695287A CN 03824733 CN03824733 CN 03824733 CN 03824733 A CN03824733 A CN 03824733A CN 1695287 A CN1695287 A CN 1695287A
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Abstract
A generator-motor (100) comprising a control circuit (20) provided on the end face of a motor (50). The control circuit (20) comprises a Zener diode (21), a capacitor (22), a phase U arm (23), a phase V arm (24), and a phase W arm (25). The Zener diode (21), the capacitor (22), the phase U arm (23), the phase V arm (24) and the phase W arm (25) are connected in parallel between a positive bus (L1) and a negative bus (L2). The Zener diode (21) absorbs a surge voltage being applied to the capacitor (22), the phase U arm (23), the phase V arm (24) and the phase W arm (25).
Description
Technical field
The present invention relates to a kind of generator motor of realizing being used as generator and motor function, described generator motor size can reduce.
Background technology
The open No.2-266855 of Japan Patent discloses a kind of the realization and has been installed in the threephase motor function of the engine on the vehicle and startup (starting) the device generator that conduct is used to the threephase alternator of battery charge as startup.
With reference to Figure 14, disclosed starter charger 300 comprises electric motor units 301 and driver element 302 among the open No.2-266855 of Japan Patent.Electric motor units 301 comprises stator and rotor.Driver element 302 is located on the end face 301A of electric motor units 301.Driver element 302 comprises cylindrical elements 302A and power subsystem 302B.Power subsystem 302B is formed on the surface of cylindrical elements 302A.That is to say that power subsystem 302B is along being provided with perpendicular to the direction of the radial direction 303 of cylindrical elements 302A and along the longitudinal direction 304 of the rotation axis 301B of electric motor units 301.
The coil of power subsystem 302B in being included in electric motor units 301 provides electric current and driver element 302 so that torque is specified in rotor output.When the rotor in the electric motor units 301 rotated owing to the rotatory force of engine, the alternating voltage of being responded in three stators was converted into direct voltage, thereby makes battery be recharged.
Like this, power subsystem 302B is located on the end face 301A of electric motor units 301, and as motor or generator drive electric motor units 301.
The open No.63-202255 of Japan Patent discloses a kind of starter charger that is used to start the engine that is installed on the vehicle and is used to battery charge.Figure 15 is the circuit diagram of disclosed starter charger among the open No.63-202255 of Japan Patent.With reference to Figure 15, starter charger 400 comprises battery 310, key switch 320, voltage adjuster 330, magnet exciting coil (field coil) 340, crank angle detector 350, armature supply commutation circuit 360 and armature coil 380.
Fly-wheel diode 336 absorbs the impact (surge) that is produced when transistor 337 opens or closes.
Magnet exciting coil 340 has an end of the collector electrode that is connected in transistor 337 and is connected in the other end of the positive bus-bar PLE of battery 310.
Under the sort circuit structure, voltage adjuster 330 detects from battery 310 direct voltage of output under generating state, and adjusts the exciting current that flows through magnet exciting coil 340 so that the magnitude of voltage of the direct voltage that detects is remained under the designated value.
Each crank angle between mutually that crank angle detector 350 detects armature coils 380, and the crank angle that is detected outputed to armature supply commutation circuit 360.
Armature supply commutation circuit 360 comprises current switching control circuit 361, N type MOS transistor 362-367 and Zener diode 368-373.Current switching control circuit 361 is connected with the e terminal of key switch 320, and receives crank angle from crank angle detector 350.Current switching control circuit 361 so that produce signal in order to connections/cut-out N type MOS transistor 362-367 based on crank angle, and is exported the signal that is produced to each N type MOS transistor 362-367 by the direct voltage drive that comes from the e terminal.
N type MOS transistor 362,363 is connected in series between positive bus-bar PLE and the ground connection node GND.N type MOS transistor 364,365 is connected in series between positive bus-bar PLE and the ground connection node GND.N type MOS transistor 366,367 is connected in series between positive bus-bar PLE and the ground connection node GND.
N type MOS transistor 362,363 and N type MOS transistor 364,365 and N type MOS transistor 366,367 are connected in parallel between positive bus-bar PLE and the ground connection node GND.In addition, N type MOS transistor 362,364,366 has the respective drain terminals that is connected with positive bus-bar PLE, and has the source terminal that is connected with the drain terminal of N type MOS transistor 363,365,367 respectively.And N type MOS transistor 363,365,367 has the drain terminal that is connected with the source terminal of N type MOS transistor 362,364,366 respectively, and has the respective sources gate terminal that is connected with ground connection node GND.
Node N3 between node N2 between N type MOS transistor 362 and the N type MOS transistor 363, N type MOS transistor 364 and the N type MOS transistor 365 and N type MOS transistor 366 are connected with the not homophase of armature coil 380 respectively with node N4 between the N type MOS transistor 367.
Zener diode 370 and N type MOS transistor 364 are connected in parallel between positive bus-bar PLE and the node N3.Zener diode 371 and N type MOS transistor 365 are connected in parallel between node N3 and the ground connection node GND.
Zener diode 372 and N type MOS transistor 366 are connected in parallel between positive bus-bar PLE and the node N4.Zener diode 373 and N type MOS transistor 367 are connected in parallel between node N4 and the ground connection node GND.
Under a kind of like this circuit structure, armature supply commutation circuit 360 is switched the direct current that flow in the armature coil 380 from battery 310.
When engine start, key switch 320 is connected with the e terminal.Armature supply commutation circuit 360 is based on the crank angle connection/cut-out N type MOS transistor 362-367 that comes from crank angle detector 350, and switches the direct current that flow into from battery 310 in the armature coil 380, so that ato unit.
After engine start, key switch 320 is connected with the d terminal, and N type MOS transistor 362-367 closes.Starter charger 300 is as generator work, and voltage adjuster 330 is adjusted and supplied to the electric current of magnet exciting coil 340 and be set at designated value so that will come from the magnitude of voltage of the direct voltage of battery 310.The electric power that armature coil 380 produced is changed by direct current by Zener diode 368-373 so that be battery 310 chargings.
Like this, starter charger 300 ato units in the process of ato unit, and after the engine start starter charger 300 as generator work.Even the impact that is produced in impact that is produced in the process of cutting off load or the ignition system at engine is applied in armature supply commutation circuit 360, the impingement flow that is applied is crossed Zener diode 368-373.Therefore, N type MOS transistor 362-367 is protected by Zener diode 368-373.
Yet, in traditional starter generator, when the supposition rotation axis when being the center power subsystem along perpendicular to the direction of radial direction and along the longitudinal direction setting of rotation axis.Therefore, be difficult to realize smaller szie in order to the control circuit of the driving of control motor.
In addition, traditional starter generator can't cool off power subsystem fully.
And in traditional starter generator, the control circuit that drives the motor that comprises magnet exciting coil and armature coil comprises six switch elements and is configured to and six corresponding six Zener diodes of switch element.Therefore, if be located at the place, end of alternating current generator, can not make the overall dimension of control circuit littler in order to the control circuit of drive motor.
Summary of the invention
According to foregoing description, an object of the present invention is to provide a kind of generator motor that comprises small-sized control circuit.
Another object of the present invention provides a kind of generator motor that comprises the control circuit that occupies littler space.
Another object of the present invention provides a kind of generator motor of realizing in order to the effect of cold switch element.
According to the present invention, generator motor comprises motor and control circuit.Described motor comprises with a plurality of coils of a plurality of mutually corresponding settings and realizes function as generator motor.Described control circuit is controlled described motor.
Described control circuit comprises a plurality of arms and first Zener diode.Described a plurality of arm is configured to corresponding with a plurality of coils respectively and is connected in parallel between positive bus-bar and the negative busbar.First Zener diode and a plurality of arm are connected in parallel between positive bus-bar and the negative busbar.
In a plurality of arms each comprises first and second switch elements and second Zener diode.First and second switch elements are connected in series between positive bus-bar and the negative busbar.Second Zener diode and second switch element are connected in parallel between first switch element and the negative busbar.
Preferably, described control circuit is to be provided with motor all-in-one-piece mode.
Preferably, described electric motor starting is installed in engine or the generating of the rotatory force by engine on the vehicle.
Preferably, described generator motor also comprises electronic control unit.The a plurality of first and second switch elements output control signals of described electronic control unit in being included in described control circuit.First Zener diode is arranged near the described electronic control unit.
Preferably, described generator motor also comprises fuse.Described fuse is configured to more be close to DC power supply than the positive side link position of first Zener diode.
According to the present invention, generator motor comprises motor, heterogeneous group of switching elements, control circuit and first and second battery lead plates.Described motor comprises rotor and stator, and realizes the function as generator motor.Described heterogeneous group of switching elements control is supplied to the electric current of stator.Described control circuit is controlled described heterogeneous group of switching elements.First and second battery lead plates are arranged on the end face of described motor to form around the basic U-shaped of the rotation axis of motor.On described control circuit is arranged on and is arranged on ceramic substrate in the basic U-shaped recess along the direction identical with direction in the face of first and second battery lead plates.
Preferably, described control circuit is resin molded.
Preferably, described generator motor also comprises Zener diode.Described Zener diode protects heterogeneous group of switching elements not to be hit.Described Zener diode is arranged in the recess.
Preferably, described generator motor also comprises capacity cell.Described capacity cell makes the direct voltage that comes from DC power supply smoothly and with level and smooth direct voltage be supplied to described heterogeneous group of switching elements.Described capacity cell is arranged between the ceramic substrate and second battery lead plate.
Preferably, described generator motor also comprises the magnet exciting coil control unit.Described magnet exciting coil control unit control supplies to the electric current of the magnet exciting coil different with stator.Described magnet exciting coil control unit is arranged on the ceramic substrate.
Preferably, the lead frame and first and second battery lead plates that extend to first and second battery lead plates from ceramic substrate are arranged in the same level.
According to the present invention, generator motor comprises motor, a plurality of switch element and busbar.Described motor is realized the function as generator and/or motor.Described a plurality of switch element control is supplied to the electric current of described motor.Described busbar connects described a plurality of switch element.The ratio of the area of described busbar and the area of described switch element is five or bigger.
Preferably, generator motor also comprises padded coaming.Described padded coaming is arranged between described busbar and the described switch element and absorbs thermal expansion difference between described busbar and the described switch element.
Preferably, described padded coaming is made by copper base or alumina-base material.
Preferably, described busbar is made of copper.
Preferably, described busbar is arranged on the end face of described motor and has arcuate shape.
Preferably, described busbar comprises first to the 3rd busbar.First busbar constitutes power line.Second busbar is connected with the coil of described motor.The 3rd busbar constitutes earth connection.A plurality of switch elements comprise a plurality of first switch elements and a plurality of second switch element.A plurality of first switch elements are arranged on first busbar.A plurality of second switch elements are arranged on second busbar.Generator motor also comprises first and second plane electrodes.First plane electrode is connected to second busbar with a plurality of first switch elements.Second plane electrode is connected to the 3rd busbar with a plurality of second switch elements.
According to generator motor of the present invention, first Zener diode protection is included in first switch element in the corresponding arm in a plurality of arms.That is to say that according to generator motor of the present invention, a Zener diode is protected a plurality of switch elements.
Therefore, according to the present invention, can be made littler in order to the control circuit of controlling motor.Therefore, control circuit can be arranged on the end face of motor.
In addition, according to generator motor of the present invention, realize in order to control generator or motor function motor driving control circuit along be arranged on described motor end face on the face of first and second battery lead plates in the identical direction setting of direction.Control circuit is arranged in the basic U-shaped recess in first and second battery lead plates.
Therefore, according to the present invention, can reduce the occupied area of control circuit.
And according to generator motor of the present invention, a plurality of switch elements of electric current that supply to the stator of described motor in order to control are fixed in described busbar, wherein are inserted with by the padded coaming that constitutes with described busbar identical materials.Then, the heat that produces in a plurality of switch elements is transferred to described busbar by described padded coaming or by described padded coaming and plane electrode.
And according to generator motor of the present invention, the area of described busbar and the ratio that supplies in order to control between the area of described switch element of electric current of stator of described motor are set to such an extent that be not less than 5.
Therefore, according to the present invention, described switch element can be cooled off effectively.
From below in conjunction with understanding aforementioned and other purpose of the present invention, feature, aspect and advantage the described detailed description of accompanying drawing more.
Description of drawings
Fig. 1 is the plane graph of generator motor involved in the present invention;
Fig. 2 A is the plane graph of the MOS transistor Tr1 shown in Fig. 1;
Fig. 2 B is the cross-sectional view of the MOS transistor Tr1 shown in Fig. 1 and battery lead plate 81,82A;
Fig. 3 is the cross-sectional view that is cut along the line III-III shown in Fig. 1;
Fig. 4 is another cross-sectional view that is cut along the line III-III shown in Fig. 1;
Fig. 5 is the cross-sectional view of the area of the MOS transistor Tr1 shown in Fig. 1;
Fig. 6 illustrates the fixedly cross-sectional view of the conventional method of MOS transistor;
Fig. 7 is the plane graph that is used to calculate the ratio between the area of the area of battery lead plate and MOS transistor;
Fig. 8 illustrates the relation between component temperature rising and the busbar area/element area;
Fig. 9 is the circuit block diagram of generator motor shown in Fig. 1 and battery;
Figure 10 is another plane graph of generator motor involved in the present invention;
Figure 11 A is the plane graph of the MOS transistor Tr1 shown in Figure 10;
Figure 11 B is the cross-sectional view of the MOS transistor Tr1 shown in Figure 10 and battery lead plate 81,82A;
Figure 12 illustrates the temperature rising of the MOS transistor Tr1-Tr6 shown in Figure 10 and the relation between busbar area/element area;
Figure 13 is the schematic block diagram that comprises the engine system of the generator motor shown in Fig. 1;
Figure 14 is the perspective view of traditional starter generator; And
Figure 15 is the circuit diagram of traditional starter charger circuit.
Embodiment
In the following description, describe embodiments of the invention with reference to the accompanying drawings in detail.It should be noted that identical in the accompanying drawings Reference numeral is represented identical or corresponding parts, and will not repeat description it.
With reference to Fig. 1, generator motor 100 involved in the present invention comprises Zener diode 21, DT1-DT3, MOS transistor Tr1-Tr6, power supply 26, MOS driver 27, alternating current generator 50, conventional IC70, battery lead plate 81,82A-82C, 83, substrate 84, terminal 84A-84D and distribution 85A-85D, 86A-86D.
In the following description, to suppose that generator motor 100 is installed in use and is called on the automobile of " eco-run (economic condition running) " (economy run system or idling stop (idle stop) system), wherein engine is controlled to be convenient to stop automatically when vehicle stops and starting automatically when vehicle restarts.
MOS transistor Tr1, Tr3, Tr5 are arranged on the battery lead plate 81, MOS transistor Tr2 and Zener diode DT1 are arranged on the battery lead plate 82A, MOS transistor Tr4 and Zener diode DT2 are arranged on the battery lead plate 82B, and MOS transistor Tr6 and Zener diode DT3 are arranged on the battery lead plate 82C.
MOS transistor Tr1 has drain electrode that is connected with battery lead plate 81 and the source electrode that is connected with battery lead plate 82A.MOS transistor Tr2 has drain electrode that is connected with battery lead plate 82A and the source electrode that is connected with battery lead plate 83.The terminal of Zener diode DT1 is connected with battery lead plate 82A and another terminal is connected with battery lead plate 83.Battery lead plate 82A is connected with an end 51A of the U phase coil of alternating current generator 50.
MOS transistor Tr3 has drain electrode that is connected with battery lead plate 81 and the source electrode that is connected with battery lead plate 82B, and MOS transistor Tr4 has drain electrode that is connected with battery lead plate 82B and the source electrode that is connected with battery lead plate 83.The terminal of Zener diode DT2 is connected with battery lead plate 82B and another terminal is connected with battery lead plate 83.Battery lead plate 82B is connected with an end 52A of the V phase coil of alternating current generator 50.
MOS transistor Tr5 has drain electrode that is connected with battery lead plate 81 and the source electrode that is connected with battery lead plate 82C.MOS transistor Tr6 has drain electrode that is connected with battery lead plate 82C and the source electrode that is connected with battery lead plate 83.The terminal of Zener diode DT3 is connected with battery lead plate 82C and another terminal is connected with battery lead plate 83.Battery lead plate 82C is connected with an end 53A of the W phase coil of alternating current generator 50.
Therefore, MOS transistor Tr1, Tr2 are connected in series between battery lead plate 81 and 83 via battery lead plate 82A.And MOS transistor Tr3, Tr4 are connected in series between battery lead plate 81 and 83 via battery lead plate 82B.And MOS transistor Tr5, Tr6 are connected in series between battery lead plate 81 and 83 via battery lead plate 82C.Battery lead plate 82A-82C is connected with U phase coil, V phase coil and the W phase coil of alternating current generator 50 respectively.
Terminal 84A outputs to conventional IC70 via distribution 85A received signal M/G and with the signal M/G that is received.Terminal 84B outputs to conventional IC70 via distribution 85B received signal RLO and with the signal RLO that is received.Terminal 84C outputs to conventional IC70 via distribution 85C received signal CHGL and with the signal CHGL that is received.Terminal 84D receives the direct voltage of output from battery 10 and the direct voltage that is received is fed to power supply 26 via distribution 85D.
From substrate 84 to battery lead plate 81, the distribution of 82A-82C, during distribution 86A-86F is arranged on space between rotation axis 50A and the battery lead plate 81 along the circumference around rotation axis 50A.Afterwards, distribution 86B is crooked at a C place, and it is following to arrive battery lead plate 82A to extend to battery lead plate 81.Distribution 86D is crooked at a D place, and it is following to arrive battery lead plate 82B to extend to battery lead plate 81.And distribution 86F is crooked at an E place, and it is following to arrive battery lead plate 82C to extend to battery lead plate 81.
Fig. 2 A is the plane graph of the MOS transistor Tr1 shown in Fig. 1, and Fig. 2 B is the cross-sectional view of the MOS transistor Tr1 shown in Fig. 1 and battery lead plate 81,82A.With reference to Fig. 2 A and Fig. 2 B, MOS transistor Tr1 comprises grid G, source S and drain D.Grid G is connected with distribution 86A.It is adjacent with grid G that source S is configured to, and be connected with battery lead plate 82A via distribution GL.Therefore, in order to help respectively grid G to be connected with battery lead plate 82A with distribution 86A with source S via distribution GL, MOS transistor Tr1 is configured such that grid G is oriented to the side of rotation axis 50A and makes source S be oriented to the side of battery lead plate 82A.Drain D is connected with battery lead plate 81.
Each MOS transistor Tr2-Tr6 comprises grid G, source S and drain D in the mode similar to MOS transistor Tr1, and its setting also is identical.
In such as high-power components such as MOS transistor Tr1-Tr6, in many cases, grid G is arranged on along in the core of a side of the circumferential part of aforesaid element, minimize so that come from the length of output line in the outside of described element, thereby make as the pad of lead-out terminal big as much as possible.
Therefore, if the drain D of MOS transistor Tr1-Tr6 is arranged on the back side of element, the distribution GL that comes from source S is configured such that it pulls out from a side relative with grid G place one side.
If MOS transistor Tr1-Tr6 is arranged on battery lead plate 81,82A, 82B, the 82C, in order to realize the shorter length of distribution 86A, 86B, 86C, 86D, 86E, 86F, GL, MOS transistor Tr1-Tr6 should be configured such that grid G is oriented to the side of rotation axis 50A and makes source S be oriented to outer circumferential side.
Like this, MOS transistor Tr1, Tr3, Tr5 constitute the upper arm of inverter of electric current of coil that supplies to each phase of alternating current generator 50 in order to control, and MOS transistor Tr2, Tr4, Tr6 constitute the underarm of inverter of electric current of coil that supplies to each phase of alternating current generator 50 in order to control.Therefore, the direction that is provided with in view of MOS transistor Tr1-Tr6, from the viewpoint of the shorter length of the improvement efficient of cooling MOS transistor Tr1-Tr6 (MOS transistor Tr1-Tr6 is arranged on the inside portion on the end face of alternating current generator 50 and is used for by suck the air stream cooling MOS transistor Tr1-Tr6 of alternating current generator 50 from the outside) or distribution 86A, 86B, 86C, 86D, 86E, 86F, GL, battery lead plate 81 is arranged in the inside portion and battery lead plate 82A, 82B, 82C, 83 are arranged on battery lead plate 81 outsides is optimal.
In addition, because battery lead plate 83 constitutes negative busbars and can with the lid of alternating current generator 50 or framework is connected so that ground connection can be arranged on battery lead plate 83 on the outermost effectively.
, battery lead plate 81 is arranged in the inside portion for this reason, and battery lead plate 82A, 82B, 82C, 83 is arranged on the outside of battery lead plate 81.
Fig. 3 illustrates the cross-sectional structure of the alternating current generator 50 that the cross section that cut along the line III-III shown in Fig. 1 sees.With reference to Fig. 3, rotor 55 is fixed in rotation axis 50A, and rotor coil 54 is wrapped in around the rotor 55.Stator 56,57 is fixed on the outside of rotor 55, and U phase coil 51 is wrapped in around the stator 56, V phase coil 52 is wrapped in around the stator 57.In Fig. 3, not shown stator with the winding of W phase coil.
The end of rotation axis 50A is connected in belt wheel 160, and the torque transfer that described belt wheel 160 is produced alternating current generator 50 by belt is to the bent axle of engine or auxiliary machinery and then the rotatory force of the bent axle of engine is transferred to rotation axis 50A.
MOS transistor 40 is located on the side relative with capacitor 22, and battery lead plate 81 is between them.The drain electrode of MOS transistor 40 is connected in battery lead plate 81 and source electrode is connected in rotor coil 54.When alternating current generator 50 generatings, determine energy output according to the rotor current that flows in the rotor coil 54.Therefore, MOS transistor 40 is that rotor coil 54 supplied alternating generators 50 produce the required rotor current of appointment electric power amount.
Like this, when seeing past tense, be arranged on the rear side of substrate 84 in order to the MOS transistor 40 of controlling the rotor current of determining energy output from direction B.
Fig. 4 is the cross-sectional view that the battery lead plate 81 seen from the cross section that line III-III cut shown in Fig. 1,82B, 82C, 83 etc. layout are shown.With reference to Fig. 4, distribution 86C, 86E, 86F are arranged on the left side of rotation axis 50A, and battery lead plate 81,82C, the 83 outer peripheral side towards distribution 86C, 86E, 86F are provided with in succession.Here, distribution 86C, 86E, 86F and battery lead plate 81,82C are arranged in the same level.Battery lead plate 83 be arranged on distribution 86C, 86E, 86F and battery lead plate 81,82C below, and battery lead plate 83 is overlapping with battery lead plate 82C part.
Fig. 5 is the cross-sectional view that the MOS transistor Tr1 shown in Fig. 1 is arranged at zone wherein.With reference to Fig. 5, padded coaming 812 is adhered to battery lead plate 81 by scolder 811.Afterwards, by scolder 813 MOS transistor Tr1 is adhered to padded coaming 812.Padded coaming 812 usefulness copper (Cu) or make such as copper-based materials such as copper molybdenum alloy or copper-tungstens, and have thickness in the 0.1-2.0mm scope.That is to say that padded coaming 812 usefulness are made with battery lead plate 81 identical materials.Scolder the 811, the 813rd, unleaded, the Ag-Cu-Sn parent metal.The thermal expansion difference that padded coaming 812 absorbs between battery lead plate 81 and the MOS transistor Tr1.Therefore, even because the operation of MOS transistor Tr1 causes temperature to rise and battery lead plate 81 expands with MOS transistor Tr1, padded coaming 812 prevents that also MOS transistor Tr1 and battery lead plate 81 are separated.
With reference to Fig. 6, conventionally, the installation portion of MOS transistor Tr1 constitutes by DBC (directly engaging copper, Direct Bond Copper) 820 with by the radiator (heat sink) 830 that AlSi/CuMo etc. makes.DBC820 has the insulated substrate that copper (Cu) 822,823 is formed on a kind of like this cross-sectional structure on ceramic 821 both sides.MOS transistor Tr1 has been arranged on the radiator 830, and DBC820 is inserted in wherein.Perhaps, MOS transistor Tr1 has been arranged on the radiator 830, and the DBA (directly engaging aluminium, Direct Bond Aluminum) that replaces copper (Cu) formation among the DBC820 with aluminium (Al) is inserted in wherein.Because pottery 821 is insulators, therefore when MOS transistor Tr1 was arranged on the radiator 830 in this way, the heat that is produced among the MOS transistor Tr1 unlikely was transferred to radiator 830.Therefore, MOS transistor Tr1 is not cooled off fully.
In contrast, as shown in Figure 5, when using when being set directly at MOS transistor Tr1 on the battery lead plate 81 by the padded coaming made from battery lead plate 81 identical materials 812, only metal is present between MOS transistor Tr1 and the battery lead plate 81.In addition, padded coaming 812 and battery lead plate 81 have the heat conductivity that is higher than the MOS transistor Tr1 that is made by silicon (Si).Therefore, the heat that is produced among the MOS transistor Tr1 is easy to be transferred to the battery lead plate 81 as radiator, and therefore, MOS transistor Tr1 is cooled off effectively.
Like this, the invention is characterized in that MOS transistor Tr1 is located on the battery lead plate 81, padded coaming 812 is inserted in wherein, padded coaming 812 be by make with battery lead plate 81 identical materials or metal by similar type.When padded coaming 812 be by make with battery lead plate 81 identical materials or during by similar type metal, its thickness is very crucial.Specifically, its thickness should be set in the aforesaid 0.1-2.0mm scope, thereby plays the effect of padded coaming.
Padded coaming 812 is not by making with battery lead plate 81 identical materials yet.For example, padded coaming 812 can replace copper (Cu) and made by aluminium (Al).In addition, padded coaming 812 can be made by alumina-base material.In this case, padded coaming 812 also has the thickness in the 0.1-2.0mm scope.
MOS transistor Tr2-Tr6 also is fixed on battery lead plate 81, the 82A-82C in the mode similar to MOS transistor Tr1.
With reference to Fig. 7 and Fig. 8, with the ratio of describing between the area of the area of MOS transistor Tr1-Tr6 and battery lead plate 81,82A-82C.With reference to Fig. 7, the central representation of the rotation axis 50A of alternating current generator 50 is O, and is expressed as θ 1 by the angle that the two ends and the center O of battery lead plate 81 limits.In addition, the angle that is limited by two ends and the center O of battery lead plate 82A is expressed as θ 2.
The inside meter of battery lead plate 81 is shown D1 and the external diameter of battery lead plate 81 is expressed as D2.The external diameter of battery lead plate 82A is expressed as D4 because battery lead plate 82A-82C is arranged to arc (being also referred to as " U-shaped ") in the mode similar to battery lead plate 81, and the inside meter of battery lead plate 82A is shown D3.
In the present embodiment, set up the ratio between the area of the area of MOS transistor Tr1-Tr6 and battery lead plate 81,82A-82C, when MOS transistor Tr1-Tr6 has the size that is fixed as 3 square millimeters, inside diameter D 1 is fixed as 40mm, outer diameter D 2 and is fixed as that 70mm, inside diameter D 3 are fixed as 75mm, outer diameter D 4 is fixed as 120mm, angle θ 1 changes in 80 °-150 ° scope, and angle θ 2 changes in 70 °-90 ° scope, and the temperature of MOS transistor Tr1-Tr6 is not higher than tolerance limit (tolerable limit).
Table 1 illustrates the area ratio between the area of battery lead plate 81,82A when angle θ 1 is set at 84 ° and angle θ 2 and is set at 78 ° and MOS transistor Tr1, Tr2 and battery lead plate 81, the 82A.
[table 1]
(mm
2)
| Element | ????9×9 | ????81 |
(mm
2) (multiple)
| The busbar diameter | ??40 | Anodal | ????520 | ????6.4 |
| ??70 | ||||
| ??75 | The U phase | ????760 | ????9.4 | |
| ??120 |
In table 1, " positive pole " expression battery lead plate 81, and anodal area 520mm
2Expression battery lead plate 81 is with respect to the area of a MOS transistor Tr1.Here, Zheng Ji area 520mm
2Be equivalent to 1/3 of battery lead plate 81 gross areas.
Here, three MOS transistor Tr1, Tr3, Tr5 are arranged on the battery lead plate 81.Therefore, unless use by multiply by 1/3 area that obtains with battery lead plate 81 gross areas, otherwise just can not obtain accurate ratio between the area of the area of battery lead plate and a MOS transistor.
" U phase " expression battery lead plate 82A in the table 1.
Ratio between the area of the area of MOS transistor Tr3, Tr5 and battery lead plate 81 equals by the numerical value shown in the positive pole in the table 1.Ratio between the area of ratio between the area of the area of MOS transistor Tr4 and battery lead plate 82B and the area of MOS transistor Tr6 and battery lead plate 82C equals the numerical value shown in mutually by the U in the table 1.
Use the area of above-mentioned numerical computations battery lead plate 81,82A-82C.If the area of battery lead plate 81 is 6.4 times of MOS transistor Tr1, Tr3, Tr5 area, the temperature of MOS transistor Tr1-Tr6 is not higher than tolerance limit.
By reducing angle θ 1 from 135 °, the area of battery lead plate 81 becomes bigger.Simultaneously, by increasing angle θ 2 from 75 °, the area of battery lead plate 82A becomes bigger.
Therefore, by changing angle θ 1, θ 2 to change the area of battery lead plate 81,82A-82C, the relation between the ratio of the area of inspection MOS transistor and the area of battery lead plate and the temperature of MOS transistor Tr1-Tr6.
Fig. 8 illustrates the temperature rising of MOS transistor Tr1-Tr6 and the relation between busbar area/element area.In Fig. 8, ordinate represents that component temperature rises, and abscissa is represented busbar area/element area.Here, the area of busbar cartographic represenation of area battery lead plate 81,82A-82C.In addition, curve k1 represents transition state, that is, and and the motor rotation state, and curve k2 represents the operating condition of generating electricity.
With reference to Fig. 8, the temperature of MOS transistor Tr1-Tr6 in the represented motor rotation state of curve k1 rises and rises greater than the temperature in the represented generating operating condition of curve k2.Therefore, in the present invention, the area of the area of MOS transistor Tr1-Tr6 and battery lead plate 81,82A-82C is determined to such an extent that can obtain such area ratio, and described area ratio is not less than temperature in the element wherein and rises and be no more than area ratio with respect to the tolerance limit of k1.In other words, the area of the area of MOS transistor Tr1-Tr6 and battery lead plate 81,82A-82C is determined to such an extent that make area ratio (=busbar area/element area) be not less than 6.
Like this, the heat that is produced among the MOS transistor Tr1-Tr6 is transferred to battery lead plate 81,82A-82C by padded coaming 812, and MOS transistor Tr1-Tr6 is cooled so that the rising of the temperature among the MOS transistor Tr1-Tr6 is no more than tolerance limit.
Fig. 9 is the circuit block diagram of generator motor 100 and battery 10.Control circuit 20 comprises: be arranged on the Zener diode 21 between substrate 84 and the battery lead plate 81,83; Be arranged on the capacitor 22 between substrate 84 and battery lead plate 81, the 82C, 83; Be arranged on MOS transistor Tr1, Tr3, Tr5 on the battery lead plate 81; Be separately positioned on MOS transistor Tr2, Tr4, Tr6 on the battery lead plate 82A-82C; Be arranged on power supply 26, MOS driver 27, conventional IC70, MOS transistor 40 and diode 41 on the substrate 84.
MOS transistor Tr1, Tr2 constitute U phase arm 23; MOS transistor Tr3, Tr4 constitute V phase arm 24; And MOS transistor Tr5, Tr6 constitute W phase arm 25.
Conventional IC70 is made of synchronous rectifier 28 and control unit 29,30.Rotation angle sensor 60 is included in the alternating current generator 50.
Alternating current generator 50 comprises U phase coil 51, V phase coil 52, W phase coil 53 and rotor coil 54.One end 51A of U phase coil 51 is connected with node N1 between MOS transistor Tr1 and the MOS transistor Tr2.One end 52A of V phase coil 52 is connected with node N2 between MOS transistor Tr3 and the MOS transistor Tr4.One end 53A of W phase coil 53 is connected with node N3 between MOS transistor Tr5 and the MOS transistor Tr6.
Fuse FU1 is connected between the positive pole and control circuit 20 of battery 10.That is to say, on the side of the battery 10 that fuse FU1 is arranged on, rather than be arranged on the side of Zener diode 21.Like this, by on the side that fuse FU1 is arranged on battery 10 rather than be arranged on the side of Zener diode 21, no longer need the detection of overload current and can reduce the size of control circuit 20.Fuse FU2 is connected between the positive pole and power supply 26 of battery 10.
U phase arm 23, V phase arm 24 and W phase arm 25 are connected in parallel between positive bus-bar L1 and the negative busbar L2.U phase arm 23 is made of MOS transistor Tr1, Tr2 and Zener diode DT1.MOS transistor Tr1, Tr2 are connected in series between positive bus-bar L1 and the negative busbar L2.MOS transistor Tr1 has drain electrode that is connected with positive bus-bar L1 and the source electrode that is connected with node N1.MOS transistor Tr2 has drain electrode that is connected with node N1 and the source electrode that is connected with negative busbar L2.Zener diode DT1 and MOS transistor Tr2 are connected in parallel between node N1 and the negative busbar L2.
V phase arm 24 is made of MOS transistor Tr3, Tr4 and Zener diode DT2.MOS transistor Tr3, Tr4 are connected in series between positive bus-bar L1 and the negative busbar L2.MOS transistor Tr3 has drain electrode that is connected with positive bus-bar L1 and the source electrode that is connected with node N2.MOS transistor Tr4 has drain electrode that is connected with node N2 and the source electrode that is connected with negative busbar L2.Zener diode DT2 and MOS transistor Tr4 are connected in parallel between node N2 and the negative busbar L2.
W phase arm 25 is made of MOS transistor Tr5, Tr6 and Zener diode DT3.MOS transistor Tr5, Tr6 are connected in series between positive bus-bar L1 and the negative busbar L2.MOS transistor Tr5 has drain electrode that is connected with positive bus-bar L1 and the source electrode that is connected with node N3.MOS transistor Tr6 has drain electrode that is connected with node N3 and the source electrode that is connected with negative busbar L2.Zener diode DT3 and MOS transistor Tr6 are connected in parallel between node N3 and the negative busbar L2.
Zener diode 40 is connected between the positive pole and node N4 of battery 10.Diode 41 is connected between node N4 and the grounding node GND.
Here, respectively and the diode that is connected in parallel of MOS transistor Tr1-Tr6,40 be respectively formed at MOS transistor Tr1-Tr6,40 and semiconductor substrate between parasitic diode.
Battery 10 is exported for example direct voltage of 12V.Zener diode 21 absorbs the surge voltage that is produced between positive bus-bar L1 and the negative busbar L2.In other words, when the surge voltage that is not less than predetermined voltage level (level) is applied between positive bus-bar L1 and the negative busbar L2, Zener diode 21 absorbs surge voltages, and the direct voltage that will put on capacitor 22 and MOS transistor Tr1-Tr6 reduces to the rank that is not more than the predetermined voltage level.Therefore, consider surge voltage, do not need to guarantee the large scale of the big electric capacity and the MOS transistor Tr1-Tr6 of capacitor 22.Therefore, can reduce the size of capacitor 22 and MOS transistor Tr1-Tr6.
When the U of alternating current generator 50 phase coil 51, V phase coil 52, when W phase coil 53 generates electricity respectively, Zener diode DT1-DT3 prevents that overvoltage from putting on MOS transistor Tr2, Tr4, Tr6.In other words, when alternating current generator 50 is in power generation mode following time, the underarm of Zener diode DT1-DT3 protection U phase arm 23, V phase arm 24 and W phase arm 25.
On the basis that receives the signal GS that comes from control unit 30, synchronous rectifier 28 produces synchronizing signal SYNG1-SYNG6 based on the timing that comes from control unit 29 (regularly) signal TG1-TG6, and the synchronizing signal SYNG1-SYNG6 that is produced is outputed to MOS driver 27.In addition, on the basis that receives the signal MS that comes from control unit 30, synchronous rectifier 28 produces synchronizing signal SYNM1-SYNM6 based on the timing signal TM1-TM6 that comes from control unit 29, and the synchronizing signal SYNM1-SYNM6 that is produced is outputed to MOS driver 27.
Control unit 29 is receiving angle θ 3, θ 4, θ 5 from rotation angle sensor 60, and detects the revolution MRN that is included in the rotor 55 in the alternating current generator 50 based on the angle θ 3 that is received, θ 4, θ 5.
Angle between the direction of the magnetic force that angle θ 3 expression U phase coils 51 are produced and the direction of the magnetic force that rotor coil 54 is produced.Angle between the direction of the magnetic force that angle θ 4 expression V phase coils 52 are produced and the direction of the magnetic force that rotor coil 54 is produced.Angle between the direction of the magnetic force that angle θ 5 expression W phase coils 53 are produced and the direction of the magnetic force that rotor coil 54 is produced.Angle θ 3, θ 4, θ 5 change on the scope intercycle ground from 0 °-360 °.Therefore, control unit 29 detection angles θ 3, θ 4, θ 5 be the number of times that changes from 0 °-360 ° scope intercycle ground of cycle inherence at the appointed time, thereby obtains revolution MRN.
Afterwards, control unit 29 detects voltage Vui, the Vvi of induction in the U of alternating current generator 50 phase coil 51, V phase coil 52, W phase coil 53, the timing of Vwi based on angle θ 3, θ 4, θ 5, and produce the timing signal TG1-TG6 of connection/cut-out timing of indication MOS transistor Tr1-Tr6, so that voltage Vui, Vvi, the Vwi that responds in U phase coil 51, V phase coil 52, the W phase coil 53 is converted to direct voltage based on the timing that is detected.
In addition, control unit 29 produces the timing signal TM1-TM6 of connection/cut-outs timing of indication MOS transistor Tr1-Tr6 based on angle θ 3, θ 4, θ 5 and the revolution MRN that detected, so that alternating current generator 50 is used as drive motor.
Control unit 29 outputs to synchronous rectifier 28 with TG1-TG6, the TM1-TM6 that produces then.
Control unit 30 is from being located at outside eco-run ECU (electronic control unit) (after a while with described) received signal M/G, signal RLO and signal CHGL.In addition, control unit 30 receives U phase coil 51, V phase coil 52, voltage Vu, the Vv of W phase coil 53, the Vw that is applied to alternating current generator 50.
Control unit 30 judges that based on signal M/G alternating current generator 50 is as generator or as drive motor.Judging alternating current generator 50 when control unit 30 is when being used as generator, and control unit 30 produces signal GS and signal GS is outputed to synchronous rectifier 28.On the other hand, judging alternating current generator 50 when control unit 30 is when being used as drive motor, control unit 30 determines to supply to the electric current supply mode of U phase coil 51, V phase coil 52, W phase coil 53 based on voltage Vu, Vv, Vw, and produce the signal MS that is used to drive alternating current generator 50, so that output to synchronous rectifier 28 according to determined electric current supply mode.
In addition, control unit 30 calculates rotor current based on signal RLO so that alternating current generator 50 produces the electric power amount of specifying.Control unit 30 produces the rotor current that is used for being calculated and supplies to the signal RCT of rotor coil 54, and the signal that is produced is outputed to the grid of MOS transistor 40.
And control unit 30 judges that based on signal CHGL in U phase arm 23, V phase arm 24 and the W phase arm 25 which lost efficacy.If any one in U phase arm 23, V phase arm 24 and the W phase arm 25 lost efficacy, control unit 30 stops the running of MOS transistor Tr1-Tr6.
MOS transistor 40 is set at predetermined value based on the signal RCT that comes from control unit 30 will supply to rotor coil 54 from battery 10 rotor current.Diode 41 prevents that electric current from flowing to grounding node GND from node N4.Here, synchronous rectifier 28 and control unit 29,30 form conventional IC70.
Alternating current generator 50 is as the drive motor running or as generator operation.Be in it as under the drive pattern of drive motor, when engine start, alternating current generator 50 produces pre-determined torque under the control of control circuit 20, and uses the pre-determined torque ato unit that is produced.And at the time durations except that engine start, alternating current generator 50 produces pre-determined torque under the control of control circuit 20, and the pre-determined torque of passing through to be produced drives the driving wheel of the vehicle that is equipped with generator motor 100.In addition, at the time durations except that engine start, alternating current generator 50 uses the pre-determined torque that is produced to drive auxiliary machinery.
Simultaneously, as under the power generation mode of generator, alternating current generator 50 produces alternating voltage according to the rotor current that flows in the rotor coil 54 at it, and the alternating voltage that is produced is supplied to U phase arm 23, V phase arm 24 and W phase arm 25.
Rotation angle sensor 60 detection angles θ 3, θ 4, θ 5, and angle θ 3, θ 4, the θ 5 that is detected outputed to control unit 29.
The overall operation of generator motor 100 will be described below.Control unit 30 judges that based on the signal M/G that comes from eco-run ECU alternating current generator 50 is as generator or as drive motor.Judging alternating current generator 50 when control unit 30 is when being used as generator, and control unit 30 produces signal GS and signal GS is outputed to synchronous rectifier 28.Control unit 30 produces signal RCT based on the signal RLO that comes from eco-runECU, and the signal that is produced is outputed to the grid of MOS transistor 40.
Then, MOS transistor 40 is switched the rotor current that is fed to rotor coil 54 from battery 10 in response to signal RCT.The rotatory force of engine makes the rotor 55 of alternating current generator 50 rotate.Afterwards, alternating current generator 50 produces and specifies the electric power amount and described electric power is supplied to U phase arm 23, V phase arm 24 and W phase arm 25.
On the other hand, on the basis that from rotation angle sensor 60, has received angle θ 3, θ 4, θ 5, control unit 29 produces timing signal TG1-TG6, TM1-TM6 based on the angle θ 3 that is received, θ 4, θ 5 by said method, and timing signal TG1-TG6, the TM1-TM6 that is produced outputed to synchronous rectifier 28.
Synchronous rectifier 28 synchronously produces synchronizing signal SYNG1-SYNG6 based on signal GS that comes from control unit 30 and timing signal TG1-TG6, and the synchronizing signal SYNG1-SYNG6 that is produced is outputed to MOS driver 27.MOS driver 27 synchronously produces the control signal that is used to connect/cut off MOS transistor Tr1-Tr6 with synchronizing signal SYNG1-SYNG6, and control signal is outputed to the grid of MOS transistor Tr1-Tr6.
Make MOS transistor Tr1-Tr6 connection/cut-out by the control signal that comes from MOS driver 27 then, and the alternating voltage that alternating current generator 50 is produced is converted to direct voltage, so that be that battery 10 charges.
Here, even surge voltage is superimposed on the alternating voltage that alternating current generator 50 produced, Zener diode DT1-DT3 also can absorb surge voltage.In other words, Zener diode DT1-DT3 prevents that the voltage that surpasses withstand voltage is applied to MOS transistor Tr2, Tr4, Tr6.In addition, even surge voltage is superimposed on the direct voltage between positive bus-bar L1 and the negative busbar L2, Zener diode 21 also can absorb surge voltage.In other words, Zener diode 21 prevents that the voltage that surpasses withstand voltage is applied to MOS transistor Tr1, Tr3, Tr5.
When control unit 30 judges that based on signal M/G alternating current generator 50 will be driven as drive motor, control unit 30 determines to supply to the electric current supply mode of U phase arm 23, V phase arm 24 and W phase arm 25 based on voltage Vu, Vv, Vw, and produce the signal MS that is used to drive alternating current generator 50, so that output to synchronous rectifier 28 according to determined electric current supply mode.
On the basis that from rotation angle sensor 60, has received angle θ 3, θ 4, θ 5, control unit 29 produces timing signal TG1-TG6, TM1-TM6 based on the angle θ 3 that is received, θ 4, θ 5 by said method, and timing signal TG1-TG6, the TM1-TM6 that is produced outputed to synchronous rectifier 28.
Synchronous rectifier 28 synchronously produces synchronizing signal SYNM1-SYNM6 based on signal MS that comes from control unit 30 and timing signal TM1-TM6, and the synchronizing signal SYNM1-SYNM6 that is produced is outputed to MOS driver 27.MOS driver 27 synchronously produces the control signal that is used to connect/cut off MOS transistor Tr1-Tr6 with synchronizing signal SYNM1-SYNM6, and control signal is outputed to the grid of MOS transistor Tr1-Tr6.
Make MOS transistor Tr1-Tr6 connection/cut-out by the control signal that comes from MOS driver 27 then, and switch the electric current of the U phase arm 23, V phase arm 24 and the W phase arm 25 that from battery 10, are fed to alternating current generator 50, so that drive alternating current generator 50 as drive motor.Like this, alternating current generator 50 bent axle to engine when engine start is supplied pre-determined torque, and at the time durations except that engine start, pre-determined torque is supplied to driving wheel.In addition, alternating current generator 50 supplies to auxiliary machinery with pre-determined torque.
Here, by connection/cut-out of MOS transistor Tr1-Tr6, Zener diode 21 is absorbed in the surge voltage that produces between positive bus-bar L1 and the negative busbar L2.In other words, Zener diode 21 prevents that the voltage that surpasses withstand voltage is applied to MOS transistor Tr1, Tr3, Tr5.In addition, even MOS transistor Tr1, Tr3, Tr5 is cut off and surge voltage is applied in Tr2, Tr4, Tr6, Zener diode DT1-DT3 also can absorb surge voltage.In other words, Zener diode DT1-DT3 prevents that the voltage that surpasses withstand voltage is applied to MOS transistor Tr2, Tr4, Tr6.
Aforesaid, MOS transistor Tr1-Tr6 is arranged on the battery lead plate 81 that is located on alternating current generator 50 end faces, the 82A-82C, 83.Owing to prevent that overvoltage from MOS transistor Tr1-Tr6 and the size by providing Zener diode 21, DT1-DT3 can reduce MOS transistor Tr1-Tr6 being provided, therefore a kind of like this setting allows.Specifically, because a Zener diode 21 is protected three MOS transistor Tr1, Tr3, Tr5, therefore can utilize the space between substrate 84 and the battery lead plate 81,83 that the Zener diode 21 of protecting three MOS transistor Tr1, Tr3, Tr5 is set.
In addition, because Zener diode 21 prevents that also overvoltage from putting on capacitor 22, therefore can reduce the electric capacity of capacitor 22.Therefore, capacitor 22 can be arranged in the space between substrate 84 and battery lead plate 81, the 82C, 83.
Reduced the overall dimension of control circuit 20 by these factors, and control circuit 20 can be arranged on the end face of alternating current generator 50.In other words, replace, control circuit 20 can be arranged in the plane vertical with rotation axis 50A along the longitudinal direction setting of the rotation axis 50A of alternating current generator 50.Therefore, can reduce the occupied area of control circuit 20.
Because MOS transistor Tr1-Tr6 is fixed in battery lead plate 81,82A-82C, padded coaming 812 is inserted in wherein, padded coaming 812 is by making with battery lead plate 81,82A-82C identical materials, perhaps be not less than 6, so MOS transistor Tr1-Tr6 can be cooled off effectively because the ratio between the area of the area of MOS transistor Tr1-Tr6 and battery lead plate 81,82A-82C is set to.
Generator motor involved in the present invention can be the generator motor 101 shown in Figure 10.With reference to Figure 10, in generator motor 101, although the wire bond (W/B) in the generator motor 100 shown in replacement Fig. 1 and MOS transistor Tr1-Tr6 is connected in battery lead plate 82A-82C, 83 by plane electrode 91-96, generator motor 101 others are identical with generator motor 100.
Each plane electrode 91-96 is made by copper-based material, and its thickness is in the 0.1mm-2.0mm scope.
Figure 11 A is the plane graph of the MOS transistor Tr1 shown in Figure 10, and Figure 11 B is the cross-sectional view of the MOS transistor Tr1 shown in Figure 10 and battery lead plate 81,82A.In Figure 11 A and Figure 11 B, the distribution GL among Fig. 2 A and Fig. 2 B is replaced by plane electrode 91, yet Figure 11 A is identical with Fig. 2 B with Fig. 2 A with Figure 11 B others.
Source S preferably is made of Al-Ni-Au.Here, aluminium (Al) is formed to such an extent that contact with the silicon (Si) of using the material that acts on MOS transistor Tr1.That is to say, upward make source S by aluminium (Al), nickel (Ni) and gold (Au) are deposited on MOS transistor Tr1 (Si) in succession.Like this, when plane electrode 91 being welded in the source S of MOS transistor Tr1, can improve adhesion between the source S of plane electrode 91 and MOS transistor Tr1.It should be noted, also can the mode similar make grid G with Al-Ni-Au to source S.In addition, available Al-Ni makes source S and grid G.
In addition when plane electrode 92 is connected with the source S of MOS transistor Tr2 and with battery lead plate 83, when plane electrode 93 is connected with the source S of MOS transistor Tr3 and with battery lead plate 82B, when plane electrode 94 is connected with the source S of MOS transistor Tr4 and with battery lead plate 83, when plane electrode 95 is connected with the source S of MOS transistor Tr5 and with battery lead plate 82C, and when plane electrode 96 is connected with the source S of MOS transistor Tr6 and with battery lead plate 83, use and employed identical scolder that plane electrode 91 is connected with the source S of MOS transistor Tr1 and with battery lead plate 82A.In addition, also be suitable in conjunction with being described in here of carrying out of Fig. 2 A and 2B.
In the mode similar to MOS transistor Tr1, the MOS transistor Tr2-Tr6 shown in Figure 10 also is connected with battery lead plate 82B, 82C, 83 by plane electrode 92-96 respectively.
Like this, in generator motor 101, MOS transistor Tr1-Tr6 is connected with battery lead plate 82A, 83,82B, 83,82C, 83 by plane electrode 91-96 respectively.
Figure 12 illustrates the temperature rising of the MOS transistor Tr1-Tr6 shown in Figure 10 and the relation between busbar area/element area.In Figure 12, curve k1, k2 represent the temperature rising of MOS transistor Tr1-Tr6 when MOS transistor Tr1-Tr6 is connected with battery lead plate 82A, 82B, 82C, 83 via distribution GL and the relation between busbar area/element area, and curve k3, k4 represent the temperature rising of MOS transistor Tr1-Tr6 when MOS transistor Tr1-Tr6 is connected with battery lead plate 82A, 82B, 82C, 83 via plane electrode 91-96 and the relation between busbar area/element area.Curve k3 represents transition state, that is, and and the motor rotation state, and curve k4 represents the operating condition of generating electricity.Description at curve k1, k2 provides in conjunction with Fig. 8.
With reference to Figure 12, by via plane electrode 91 MOS transistor Tr1-Tr6 being connected with battery lead plate 82A, 82B, 82C, 83, the temperature of MOS transistor Tr1-Tr6 rises and can reduce about 35% (seeing curve k1, k3) under the motor rotation state.In addition, the temperature of MOS transistor Tr1-Tr6 rises and can reduce 3-6% (seeing curve k2, k4) under the generating operating condition.
In element, be not more than in the zone of the tolerance limit that temperature rises, the temperature of MOS transistor Tr1-Tr6 rise under the generating operating condition shown in the curve k4 greater than under the motor rotation state shown in the curve k3.Therefore, in the present invention, when using plane electrode 91-96, the area of the area of so definite MOS transistor Tr1-Tr6 and battery lead plate 81,82A-82C, promptly, make to obtain a kind of area ratio that this area ratio is not less than being risen by the indicated temperature of curve k4 in the element wherein and is no more than the area ratio of tolerance limit.In other words, the area of the area of so definite MOS transistor Tr1-Tr6 and battery lead plate 81,82A-82C promptly, makes area ratio (=busbar area/element area) be not less than 5.
Like this, the heat that is produced among the MOS transistor Tr1-Tr6 is transferred to battery lead plate 81,82A-82C by padded coaming 812 and plane electrode 91-96, and MOS transistor Tr1-Tr6 is cooled so that the rising of the temperature among the MOS transistor Tr1-Tr6 is no more than tolerance limit.
Like this, when respectively MOS transistor Tr1-Tr6 being connected with battery lead plate 82A, 83,82B, 83,82C, 83 via plane electrode 91-96, the heat that is produced among the MOS transistor Tr1-Tr6 dissipates via plane electrode 91-96.Therefore, when as in the generator motor 100, MOS transistor Tr1-Tr6 being connected with battery lead plate 82A-82C, 83 by wire bond, ratio between the area of the area of battery lead plate 81,82A-82C and MOS transistor Tr1-Tr6 should be set to such an extent that be not less than 6 so that cooling MOS transistor Tr1-Tr6, is not more than tolerance limit thereby make temperature among the MOS transistor Tr1-Tr6 rise.On the other hand, when as in the generator motor 101, by plane electrode 91-96 MOS transistor Tr1-Tr6 being connected with battery lead plate 82A-82C, 83 respectively, ratio between the area of the area of battery lead plate 81,82A-82C and MOS transistor Tr1-Tr6 can be set to 5 (this is less than 6) so that cool off MOS transistor Tr1-Tr6, thereby makes the temperature rising among the MOS transistor Tr1-Tr6 be not more than tolerance limit.
Therefore, if the area of MOS transistor Tr1-Tr6 is constant, MOS transistor Tr1-Tr6 is connected with battery lead plate 82A-82C, 83 and can makes the area of battery lead plate 81,82A-82C littler by using plane electrode 91-96 respectively.
Figure 13 illustrates the block diagram of the engine system 200 of the generator motor 100 that comprises shown in Fig. 1.With reference to Figure 13, engine system 200 comprises battery 10, control circuit 20, alternating current generator 50, engine 110, hydraulic torque converter 120, automatic transmission 130, belt wheel 140,150,160, belt 170, auxiliary machinery 172, starter 174, electric hydraulic pump 180, Fuelinjection nozzle 190, motor 210, air throttle 220, eco-run ECU230, Engine ECU 240 and VSC (intact stability control) ECU250.
Alternating current generator 50 is arranged to be adjacent to engine 110.Control circuit 20 is arranged on the end face of alternating current generator 50, as mentioned above.
Engine 110 is started by alternating current generator 50 or starter 174, and produces intended power output.More particularly, pass through alternating current generator 50 ato units 110 when after stopping, starting according to economy run system (being also referred to as " eco-run "), and when using ignition switch to start, pass through starter 174 ato units 110.The power output that engine 110 will produce from bent axle 110a is provided to hydraulic torque converter 120 or belt wheel 140.
Hydraulic torque converter 120 is transferred to automatic transmission 130 with the rotation of engine 110 from bent axle 110a.The torque settings that automatic transmission 130 carries out automatic shift control, will come from hydraulic torque converter 120 is the torque according to speed Control, and described torque is offered output shaft 130a.
Belt wheel 140 is connected with the bent axle 110a of engine 110.Belt wheel 140 is worked with belt wheel 150,160 via belt 170.
Belt 170 interconnects belt wheel 140,150,160.Belt wheel 150 is connected with the rotation axis of auxiliary machinery 172.
Belt wheel 160 is connected with the rotation axis of alternating current generator 50, and turns to by the bent axle 110a or the alternating current generator 50 of engine 110.
Auxiliary machinery 172 is made of the one or more of the compressor that is used for air conditioner, power steering pump and engine cooling water pump.Auxiliary machinery 172 receives the power output that comes from alternating current generator 50 by belt wheel 160, belt 170 and belt wheel 150, and is driven by the power output that is received.
Alternating current generator 50 is driven by control circuit 20.Alternating current generator 50 passes through the rotatory force that belt wheel 140, belt 170 and belt wheel 160 receive the bent axle 110a of engines 110, and the rotatory force that is received is converted to electric energy.In other words, alternating current generator 50 is by the rotatory force generating of bent axle 110a.Here, alternating current generator 50 generates electricity in following two kinds of situations.That is to say, when under alternating current generator 50 is being equipped with the cruising state of motor vehicle driven by mixed power of engine system 200, having received the rotatory force of the bent axle 110a that driving produced by engine 110, alternating current generator 50 generatings.In addition, when motor vehicle driven by mixed power slowed down, although engine 110 is not driven, alternating current generator 50 also generated electricity under the situation that has received the rotatory force that is transferred to bent axle 110a from driving wheel.
Alternating current generator 50 is driven by control circuit 20, and to belt wheel 160 output intended power outputs.When engine 110 started, intended power output was transferred to the bent axle 110a of engine 110 via belt 170 and belt wheel 140, perhaps is transferred to auxiliary machinery 172 via belt 170 and belt wheel 150 when driving auxiliary machinery 172.
As mentioned above, battery 10 supplies to control circuit 20 with the direct voltage of 12V.
As mentioned above, under the control of eco-run ECU230, the direct voltage that control circuit 20 will come from battery 10 is converted to alternating voltage, and uses the alternating voltage that is obtained to drive alternating current generator 50.In addition, under the control of eco-run ECU230, control circuit 20 will come from the alternating voltage that alternating current generator 50 produced and be converted to direct voltage, and to use the direct voltage that is obtained be battery 10 chargings.
Under the control of eco-run ECU230, starter 174 ato units 110.Electric hydraulic pump 180 is included in the automatic transmission 130, and hydraulic fluid is fed to the hydraulic control unit that is located in the automatic transmission 130 under the control of Engine ECU 240.Hydraulic fluid is used for adjusting by the control valve of hydraulic control unit the actuating state of clutch, brake and one-way clutch in the automatic transmission 130, so that switch gearshift according to need.
Eco-run ECU230 is used for the pattern control of alternating current generator 50 and control circuit 20, the control of starter 174, the control of battery 10 stored electricity quantities.Here, the control of the pattern of alternating current generator 50 and control circuit 20 is meant that alternating current generator 50 is used as the power generation mode of generator and the control that alternating current generator 50 is used as the drive pattern of drive motor.Here, not shown from eco-run ECU230 to battery 10 control line.
In addition, eco-run ECU230 based on the angle θ 1 that comes from the rotation angle sensor 60 that is included in the alternating current generator 50, θ 2, θ 3, driver whether by eco-run switch activated eco-run system and other Data Detection revolution MRN.
Under the control of Engine ECU 240, the injection of Fuelinjection nozzle 190 control fuel.Under the control of Engine ECU 240, the aperture of motor 210 control air throttles 220.By motor 210 air throttle 220 is set in the appointment aperture.
Engine ECU 240 is used for control and other engine control of the aperture of control that the fuel of speed Control, Fuelinjection nozzle 190 of control, automatic transmission 130 of driving of control, the electric hydraulic pump 180 of the connection/cut-out of the auxiliary machinery 172 except that engine cooling water pump sprays, the air throttle 220 by motor 210.
In addition, Engine ECU 240 detects the temperature of the engine cooling water that comes from temperature sensor, whether accelerator pedal depresses from Idle Switch, come from the accelerator that accelerator depresses degree sensor and depress degree, the steering wheel angle that comes from the steering wheel angle transducer, the speed of a motor vehicle that comes from vehicle speed sensor, the throttle opening that comes from engine load sensor, the shift pattern that comes from the shift pattern transducer, the engine revolution that comes from engine speed sensor, executed is from the operation of the switch connection/cut-out air conditioner of air conditioner, and other data.
Whether VSC-ECU250 detects brake pedal and depresses and other data from brake switch.
Eco-run ECU230, Engine ECU 240 and VSC-ECU250 mainly comprise microcomputer, and wherein CPU (CPU) carries out necessary operation and applies polytype control according to operating result according to the program that is recorded among the inner ROM (read-only memory).Operating result and detection data can be used as the data interchange between eco-run ECU230, Engine ECU 240 and the VSC-ECU250.Therefore, described data can be exchanged according to need, and mode that can co-operate applies control.
Engine system 200 should be worked and be stopped control so that carry out known idling.More particularly, detect the deceleration of vehicle or stop to make that engine stops by output, and when the driver plans to start (can detect this trend based on the mode of operation of brake or accelerator pedal), pass through alternating current generator 50 ato units based on various transducers.In engine system 200, control alternating current generator 50 control circuit 20 be located on the end face of alternating current generator 50, and according to the instruction that comes from eco-runECU230 as drive motor or as generator drive alternating current generator 50.As drive motor or as generator drive alternating current generator 50 time, the heat that MOS transistor Tr1-Tr6 is produced in control circuit 20 is transferred to battery lead plate 81,82A-82C by padded coaming 812, so that MOS transistor Tr1-Tr6 is cooled off effectively.
Here, much less, generator motor 101 is applicable to engine system 200.
In the present invention, alternating current generator 50 comprises stator and rotor, and formation realizes " motor " of the function of motor generator.
In addition, in the present invention, battery lead plate 81,82A-82C, 83 constitute " busbar ".
And in the present invention, battery lead plate 81 constitutes " first busbar ", battery lead plate 82A-82C constitutes " second busbar ", battery lead plate 83 formations " the 3rd busbar ".
In addition, in the present invention, MOS driver 27, synchronous rectifier 28 and control unit 29,30 constitute " electronic control unit ".
In the present invention, MOS transistor 40 constitutes " the magnet exciting coil control unit " that supplies to the electric current of the magnet exciting coil that is different from stator in order to control.
In addition, in the present invention, MOS transistor Tr1-Tr6 constitutes " the heterogeneous group of switching elements " that will supply to the electric current of stator in order to control.
And in the present invention, distribution 86A-86F constitutes from substrate 84 (being made of ceramic substrate) and extends to battery lead plate 81,82A-82C, 83 " lead frame ".
In generator motor involved in the present invention, the ratio between element area and the busbar area (busbar area/element area) should be set to such an extent that be not less than 5.
According to embodiments of the invention, in generator motor, a plurality of switch elements that control will supply to as the electric current of the coil of the alternating current generator of generator and drive motor are fixed in battery lead plate, be inserted with padded coaming simultaneously, padded coaming is by making with using the material identical materials that is fixed with the battery lead plate of described a plurality of switch elements thereon.Therefore, described a plurality of switch element can be cooled off effectively.
In addition, according to embodiments of the invention, in generator motor, the ratio that area and the control that is fixed with the battery lead plate of described a plurality of switch elements on it will supply to as the area of each described a plurality of switch element of the electric current of the coil of the alternating current generator of generator and drive motor has been set to such an extent that be not less than 5.Therefore, described a plurality of switch element can be cooled off effectively.
And according to embodiments of the invention, control comprises a plurality of switch elements and prevents that surge voltage from putting on a Zener diode on a plurality of switch elements as the control circuit of the driving of the alternating current generator of generator or drive motor.Therefore, can make the overall dimension of control circuit littler.Therefore, control circuit can be arranged on the end face of alternating current generator.
And, according to embodiments of the invention, generator motor comprises that control will supply to the control circuit of heterogeneous group of switching elements as the electric current of the coil of the alternating current generator of generator or motor, the heterogeneous group of switching elements of control and is arranged to around two battery lead plates of the basic U-shaped of the rotation axis of alternating current generator.On control circuit is arranged on and is arranged on ceramic substrate in the basic U-shaped recess along direction in the face of two battery lead plates.Therefore, the occupied area of control circuit can be reduced, therefore, the size of generator motor can be reduced.
In the present embodiment, although eco-run ECU and Engine ECU are provided with being separated, also can constitute an engine control ECU by integrated their function.And the speed changer among the present invention is not limited to AT (being known as automatic transmission), and can be by this speed changer that constitutes such as the known transmission of CVT and MT.
And, although being applicable to, present embodiment wherein is suitable for the electronic motor vehicle driven by mixed power that still can produce large driving force of eco-run system.Also can realize the present invention even replace alternating current generator 50 by known generator motor (also can be referred to as motor generator).That is to say, also can suitably only select to apply the generator motor of the required torque of powered vehicle or ato unit.
Although described and illustrated the present invention in detail, it should be understood that described description and only explain for explaining and the purpose of example and should not think restrictively that spirit of the present invention and protection range are only limited by claims.
Industrial applicability
The present invention is applicable to the generator motor that its size can reduce.
Claims (17)
1. generator motor, it comprises:
Comprise with a plurality of coils (51-53) of a plurality of mutually corresponding settings and realize motor (50) as the function of generator motor; With
Control the control circuit (20) of described motor (50); Wherein,
Described control circuit (20) comprising:
Respectively with the corresponding setting of described a plurality of coils (51-53) and be connected in positive bus-bar (L1) in parallel and negative busbar (L2) between a plurality of arms (23-25) and
And described a plurality of arm (23-25) is connected in first Zener diode (21) between described positive bus-bar (L1) and the described negative busbar (L2) in parallel, and
Each arm in described a plurality of arm (23-25) comprises:
Be connected in series in first and second switch elements (Tr1, Tr3, Tr5 between described positive bus-bar (L1) and the described negative busbar (L2); Tr2, Tr4, Tr6) and
And described second switch element (Tr2, Tr4, Tr6) is connected in second Zener diode (DT1-DT3) between described first switch element (Tr1, Tr3, Tr5) and the described negative busbar (L2) in parallel.
2. generator motor according to claim 1 is characterized in that,
Described control circuit (20) is to be provided with described motor (50) all-in-one-piece mode.
3. generator motor according to claim 1 is characterized in that,
Described motor (50) starts the engine (110) be installed on the vehicle or generates electricity by the rotatory force of described engine (110).
4. generator motor according to claim 1 is characterized in that, it also comprises a plurality of first switch elements and second switch element (Tr1, Tr3, Tr5 in being included in described control circuit (20); Tr2, Tr4, Tr6) output control signal electronic control unit (27-30), and
Described first Zener diode (21) is arranged near the described electronic control unit (27-30).
5. generator motor according to claim 1 is characterized in that, it also comprises the fuse (FU1) than the more close DC power supply of positive side link position (10) setting of described first Zener diode (21).
6. generator motor, it comprises:
Comprise rotor (55) and stator (56,57) and realization motor (50) as the function of generator motor;
Be arranged on the end face of described motor (50) to form first and second battery lead plates around the basic U-shaped of the rotation axis of described motor (50) (81,82A-82C);
Control is supplied to the heterogeneous group of switching elements (Tr1-Tr6) of the electric current of described stator (56,57); With
Control the control circuit (26,70) of described heterogeneous group of switching elements (Tr1-Tr6); Wherein,
On described control circuit (27,70) is arranged on and is arranged on ceramic substrate (84) in the basic U-shaped recess along the direction identical with direction in the face of described first and second battery lead plates (81,82A-82C).
7. generator motor according to claim 6 is characterized in that,
Described control circuit (27,70) is resin molded.
8. generator motor according to claim 6 is characterized in that, it also comprises the Zener diode (21) that the described heterogeneous group of switching elements of protection (Tr1-Tr6) is not hit, and
Described Zener diode (21) is arranged in the described recess.
9. generator motor according to claim 6 is characterized in that, it also comprises makes the level and smooth capacity cell (22) that also level and smooth direct voltage is supplied to described heterogeneous group of switching elements (Tr1-Tr6) of the direct voltage that comes from DC power supply (10), and
Described capacity cell (22) is arranged between described ceramic substrate (84) and described second battery lead plate (82A-82C).
10. generator motor according to claim 6 is characterized in that, it comprises that also control is supplied to the magnet exciting coil control unit (40) of the electric current of the magnet exciting coil (54) different with described stator (56,57), and
Described magnet exciting coil control unit (40) is arranged on the described ceramic substrate (84).
11. generator motor according to claim 6 is characterized in that,
Extending to the lead frame (86A-86F) of described first and second battery lead plates (81,82A-82C) and described first and second battery lead plates (81,82A-82C) from described ceramic substrate (84) is arranged in the same level.
12. a generator motor, it comprises:
Realization is as the motor (50) of the function of generator motor;
Control is supplied to a plurality of switch elements (Tr1-Tr6) of the electric current of described motor (50); With
The busbar (81,82A-82C, 83) that connects described a plurality of switch element (Tr1-Tr6); Wherein,
The ratio of the area of described busbar (81,82A-82C, 83) and the area of described switch element (Tr1-Tr6) is at least five.
13. generator motor according to claim 12, it is characterized in that it also comprises the padded coaming (812) that is arranged between described busbar (81,82A-82C, 83) and the described switch element (Tr1-Tr6) and absorbs the thermal expansion difference between described busbar (81,82A-82C, 83) and the described switch element (Tr1-Tr6).
14. generator motor according to claim 12 is characterized in that,
Described padded coaming (812) is made by copper base or alumina-base material.
15. generator motor according to claim 12 is characterized in that,
Described busbar (81,82A-82C, 83) is made of copper.
16. generator motor according to claim 12 is characterized in that,
Described busbar (81,82A-82C, 83) is arranged on the end face of described motor (50) and has arcuate shape.
17. generator motor according to claim 12 is characterized in that,
Described busbar (81,82A-82C, 83) comprising:
Constitute first busbar (81) of power line,
Second busbar (82A-82C) that is connected with the coil (51-53) of described motor (50), and
Constitute the 3rd busbar (83) of earth connection,
Described a plurality of switch element (Tr1-Tr6) comprising:
Be arranged on described first busbar (81) a plurality of first switch elements (Tr1, Tr3, Tr5) and
Be arranged on a plurality of second switch elements (Tr2, Tr4, Tr6) on described second busbar (82A-82C), and
Described generator motor (101) also comprises:
With described a plurality of first switch elements (Tr1, Tr3, Tr5) be connected to described second busbar (82A-82C) a plurality of first plane electrodes (91,93,95) and
Described a plurality of second switch elements (Tr2, Tr4, Tr6) are connected to a plurality of second plane electrodes (92,94,96) of described the 3rd busbar (83).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP313009/2002 | 2002-10-28 | ||
| JP2002313009A JP4003611B2 (en) | 2002-10-28 | 2002-10-28 | Generator motor |
| JP313924/2002 | 2002-10-29 | ||
| JP313925/2002 | 2002-10-29 | ||
| JP203214/2003 | 2003-07-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1695287A true CN1695287A (en) | 2005-11-09 |
| CN100481682C CN100481682C (en) | 2009-04-22 |
Family
ID=32457743
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038247364A Expired - Fee Related CN100481683C (en) | 2002-10-28 | 2003-07-31 | Generator-motor |
| CNB03824733XA Expired - Fee Related CN100481682C (en) | 2002-10-28 | 2003-09-09 | Generator-motor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038247364A Expired - Fee Related CN100481683C (en) | 2002-10-28 | 2003-07-31 | Generator-motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4003611B2 (en) |
| CN (2) | CN100481683C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275348A (en) * | 2016-03-30 | 2019-01-25 | 泰恩河畔纽卡斯尔大学 | Electrical sub-component |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005328690A (en) * | 2004-04-12 | 2005-11-24 | Hitachi Ltd | Dynamo-electric machine for vehicle |
| EP3041117B1 (en) | 2005-12-16 | 2018-01-31 | Mitsubishi Electric Corporation | Electric motor generator |
| JP4402057B2 (en) * | 2006-02-21 | 2010-01-20 | 三菱電機株式会社 | Controller-integrated rotating electrical machine |
| JP4969138B2 (en) * | 2006-04-17 | 2012-07-04 | 大日本スクリーン製造株式会社 | Substrate processing equipment |
| JP4166804B2 (en) * | 2006-06-26 | 2008-10-15 | 三菱電機株式会社 | Controller-integrated rotating electrical machine |
| JP6988518B2 (en) * | 2018-01-26 | 2022-01-05 | 株式会社デンソー | Rectifier and rotary machine |
| CN109038960A (en) * | 2018-09-03 | 2018-12-18 | 中车永济电机有限公司 | A kind of highly integrated generator suitable for locomotive |
-
2002
- 2002-10-28 JP JP2002313009A patent/JP4003611B2/en not_active Expired - Fee Related
-
2003
- 2003-07-31 CN CNB038247364A patent/CN100481683C/en not_active Expired - Fee Related
- 2003-09-09 CN CNB03824733XA patent/CN100481682C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275348A (en) * | 2016-03-30 | 2019-01-25 | 泰恩河畔纽卡斯尔大学 | Electrical sub-component |
| CN109275348B (en) * | 2016-03-30 | 2021-11-16 | 泰恩河畔纽卡斯尔大学 | Electrical subassembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004153872A (en) | 2004-05-27 |
| CN100481682C (en) | 2009-04-22 |
| CN1695288A (en) | 2005-11-09 |
| JP4003611B2 (en) | 2007-11-07 |
| CN100481683C (en) | 2009-04-22 |
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