CN2408385Y - Motor driver and air conditioner with said device - Google Patents
Motor driver and air conditioner with said device Download PDFInfo
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- CN2408385Y CN2408385Y CN 00201597 CN00201597U CN2408385Y CN 2408385 Y CN2408385 Y CN 2408385Y CN 00201597 CN00201597 CN 00201597 CN 00201597 U CN00201597 U CN 00201597U CN 2408385 Y CN2408385 Y CN 2408385Y
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Abstract
The utility model relates to a motor driver and an air conditioner with the motor driver. In order to prevent generating abnormal sounds because of interference of two blowers, a motor driving circuit of the air conditioner with the blower set with rotary speed difference is simplified with low cost; a common solid relay of two motors is arranged between the two parallel fan motors 1 and 2 and an alternating-current power supply; a first capacitor with a first capacitance is arranged between the relay and the first fan motor; a second capacitor with a second capacitance different from the first capacitance is arranged between the solid relay and the second fan motor; a control circuit is provided with a circuit only detecting the rotary speed of the first fan motor, a CPU controlling the relay according to the rotary speed and a driving circuit.
Description
The utility model relates to motor drive and possesses the aircondition of this device.Particularly relate to and multiple motors is established speed discrepancy carry out the drive electric motor drive unit, and have aircondition with the pressure fan of mutually different rotating speed operation.
People always know to have to possess 2 airconditions by the pressure fan of ac motor driving.In this aircondition, as shown in Figure 6, the 1st ac motor 201 and the 2nd ac motor 202 that drive the blade of pressure fan are connected in common AC power 205 by the 1st drive circuit 203 and the 2nd drive circuit 204 respectively.Each drive circuit 203,204 is provided with capacitor 208,209 and the solid-state relay 206,207 that is provided with respect to each electric current motor 201,202.And the capacitor 208 that is arranged at the 1st drive circuit 203 constitutes with the capacitor of the capacitor 209 that is arranged at the 2nd drive circuit 204 by the equal same kind of capacitance.
On the other hand, the 1st speed detect circuit 211 of the rotating speed that detects the 1st ac motor 201 and the 2nd ac motor 202 and the 2nd speed detect circuit 212 are set, drive the 1st drive circuit 214 and the 2nd drive circuit 215 of the 1st solid-state relay 206 and the 2nd solid-state relay 207 and CPU213 respectively at the controller 210 of rotating speed of control two pressure fans.
This CPU213 receives the output signal from the 1st speed detect circuit 211 and the 2nd speed detect circuit 212, the driving signal of transporting to each solid-state relay 206,207 from the 1st drive circuit 214 and the 2nd drive circuit 215 is controlled, made the 1st ac motor 201 and the 2nd ac motor 202 respectively with the rotating speed rotation of regulation.
But people rule of thumb know, if the revolution of two pressure fans is identical, the noise of beat sound and so on take place easily then.Therefore, always in order to prevent different sound, controller utilizes the phase place of the electric power of the 1st solid-state relay 206 and the 207 control supplies of the 2nd solid-state relay, makes above-mentioned two ac motors 201,202 with different rotating speed rotations, between two pressure fans speed discrepancy is set.
But, solid-state relay 206,207, speed detect circuit 211,212 and drive circuit 214,215 are set respectively in each pressure fan make that the control of CPU213 is complicated, and, be unfavorable from cost that reduces device and the angle of saving the space.Therefore wish that a plurality of motor are provided with speed discrepancy to carry out the drive electric motor drive unit and can simplify.
In view of this point, the purpose of this utility model be to make to a plurality of motor be provided with speed discrepancy carry out the drive electric motor drive unit and possess this device the aircondition simplified structure, reduce cost.
In order to achieve the above object, the utility model is provided with the different capacitor of capacitance between AC power and each ac motor.
Again, another utility model is between AC power and each ac motor the different resistor of resistance value to be set.
Another utility model is between AC power and each ac motor the different coil of inductance to be set.
Specifically, the 1st utility model is an object with the motor drive of a plurality of ac motors of connection parallel with one another on an AC power 105.And the phase controlling means 106 of above-mentioned each ac motor 101,102 are set.A certain at least among the different capacitor of capacitance 108,109, resistor R 1, R2 and inductance value that resistance value is different different coil L1, the L2 also is set on each supply of electric power line 121,122 of the fork of above-mentioned each ac motor 101,102 that is connected in parallel.
And the 2nd utility model connects on an AC power 105 with driving and the drive unit of the motor of driving the 1st ac motor 101 of connection parallel with one another and the 2nd ac motor 102 is an object.And possess above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 are carried out the phase controlling means 106 that phase controlling is used.Also possesses the 1st capacitor 108 that on the 1st supply of electric power line 121 that connects above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, is provided with.Also possess and diverging out from above-mentioned the 1st supply of electric power line 121, being provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, capacitance and the 2nd different capacitor 109 of above-mentioned the 1st capacitor 108.
The method that the 1st utility model and the 2nd utility model utilization make phase controlling means 106 be in conducting state provides electric power from AC power 105 to two ac motors 101,102.At this moment, for example the voltage that applied of each ac motor 101,102 takes place to postpone accordingly with the capacitance of capacitor 108,109.Just the alternating voltage of the 1st ac motor 101 takes place to postpone with the capacitance respective phase of the 1st capacitor 108, and the alternating voltage of the 2nd ac motor 102 takes place to postpone with the capacitance respective phase of the 2nd capacitor 109.
The capacitance of the 1st capacitor 108 and the 2nd capacitor 109 is different, and therefore the alternating voltage of the 1st ac motor 101 and the 2nd ac motor 102 produces phase difference.As a result, the electric power that provides by phase controlling means 106 dissimilates.Therefore, the 1st ac motor 101 and the 2nd ac motor 102 rotate with mutually different rotating speed.
Like this, thus since the voltage phase difference of two ac motors 101,102 to be the 1st capacitors 108 different with the capacitance of the 2nd capacitor 109 cause needn't the phase controlling means be set respectively to each ac motor 101,102.Therefore, can use common phase controlling means 106 to two motors 101,102.So can seek to reduce the platform number of needed phase controlling means 106, simplification device, reduce cost, save the space.
Again, the 3rd utility model is the same with the 2nd utility model, connects on an AC power 105 and the 1st ac motor 101 of connection parallel with one another and the motor drive of the 2nd ac motor 102 are object to drive.And possess above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 are carried out the phase controlling means 106 that phase controlling is used.Also possesses the 1st resistor R 1 that on the 1st supply of electric power line 121 that connects above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, is provided with.Also possess and diverging out from above-mentioned the 1st supply of electric power line 121, being provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, resistance value and the 2nd different resistor R 2 of above-mentioned the 1st resistor R 1.
In the 3rd utility model, because the different resistor R of resistance value 1, R2 are set, the alternating voltage of the 1st ac motor 101 and the 2nd ac motor 102 produces difference.Therefore, the same with the 2nd utility model, the 1st ac motor 101 and the 2nd ac motor 102 rotate with mutually different rotating speed.As a result, can seek to reduce the platform number of needed phase controlling means 106, simplification device, reduce cost, save the space.
Again, the 4th utility model is the same with the 2nd utility model, connects on an AC power 105 and the 1st ac motor 101 of connection parallel with one another and the motor drive of the 2nd ac motor 102 are object to drive.And possess above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 are carried out the phase controlling means 106 that phase controlling is used.Also possesses the 1st coil L1 that on the 1st supply of electric power line 121 that connects above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, is provided with.Also possess and diverging out, so that the 2nd coil L2 that inductance value is different with above-mentioned the 1st coil L1 to be set to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106 from above-mentioned the 1st supply of electric power line 121.
In the 4th utility model, because reactance value different coil L1, L2 are set, the alternating voltage of the 1st ac motor 101 and the 2nd ac motor 102 produces phase difference.Therefore, the same with the 2nd utility model, the 1st ac motor 101 and the 2nd ac motor 102 rotate with mutually different rotating speed.As a result, can seek to reduce the platform number of needed phase controlling means 106, simplification device, reduce cost, save the space.
Again, the 5th utility model is in a certain, to possess the rotating speed detection means 112 of the either party's who detects the 1st ac motor 101 and the 2nd ac motor 102 rotating speed in the 1st～4 utility model.Also possess the output signal of reception, phase controlling means 106 are controlled, make the rotating speed of described the 1st ac motor 101 and the 2nd ac motor 102 reach the rotating speed control device 111,113 of the rotating speed of regulation respectively from this rotating speed detection means 112.
In the 5th utility model, when two ac motors 101,102 are controlled,, therefore can further simplify control and device as long as it is just enough to detect either party's rotating speed.Again, have only the control of phase control device 106 just can control the supply of electric power of two motors 101,102, therefore, can simplify the control of phase control device 106.
Again, the 6th utility model is regulated the 1st draught fan impeller 20R and the 2nd draught fan impeller 20L that air is used to possess to blow, drive the 1st ac motor 101 of described the 1st impeller 20R, drive the 2nd ac motor 102 of described the 2nd impeller 20L, and on AC power 105, connect, utilize described the 1st ac motor 101 of the driven by power of this AC power 105 and the aircondition of the motor drive 100 of described the 2nd ac motor 102 to be object, and described motor drive 100 possess above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 is carried out the phase controlling means 106 that phase controlling is used.And described motor drive 100 also possesses connecting and is provided with on the 1st supply of electric power line 121 of above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, and the 1st capacitor 108 with the 1st capacitance of regulation.Also have, described motor drive 100 also possesses and is diverging out from above-mentioned the 1st supply of electric power line 121, with what be provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, have the 2nd capacitance that is different from described the 1st capacitance, and make 2nd capacitor 109 of described the 2nd impeller 20L with the rotating speed rotation that is different from described the 1st impeller 20R.
In the 6th utility model, utilize the different of the 1st capacitor 108 and the 2nd capacitor 109 capacitances, the 1st ac motor 101 and the 2nd ac motor 102 drive each impeller 20R, 20L with mutually different rotating speed rotation.By means of this, the 1st impeller 20R and the 2nd impeller 20L are rotated with mutually different rotating speed, can prevent the generation of abnormal sound.
Again, the 7th utility model is identical with the 6th utility model, blow the 1st impeller 20R and the 2nd impeller 20L, the 1st ac motor 101 that drives described the 1st impeller 20R of regulating air and using, the 2nd ac motor 102 that drives described the 2nd impeller 20L to possess, and on AC power 105, connect, described the 1st ac motor 101 of driven by power that utilizes this AC power 105 is object with the aircondition of the motor drive 100 of described the 2nd ac motor 102.And described motor drive 100 possesses above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 is carried out the phase controlling means 106 that phase controlling is used.And described motor drive 100 also possesses connecting and is provided with on the 1st supply of electric power line 121 of above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, and has the 1st resistor R 1 of the 1st resistance value of regulation.Also have, described motor drive 100 also possesses and is diverging out from above-mentioned the 1st supply of electric power line 121, to be provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, make described the 2nd impeller 20L with the rotating speed rotation that is different from described the 1st impeller 20R, resistance value is the 2nd resistor R 2 that is different from the 2nd resistance value of described the 1st resistance value.
In the 7th utility model, utilize the different of the 1st resistor R 1 and the 2nd resistor R 2 resistance values, the 1st ac motor 101 and the 2nd ac motor 102 drive separately impeller 20R, 20L with mutually different rotating speed rotation.By means of this, the 1st impeller 20R and the 2nd impeller 20L are rotated with mutually different rotating speed, can prevent the generation of abnormal sound.
Again, the 8th utility model is identical with the 6th utility model, blow the 1st impeller 20R and the 2nd impeller 20L, the 1st ac motor 101 that drives described the 1st impeller 20R of regulating air and using, the 2nd ac motor 102 that drives described the 2nd impeller 20L to possess, and on AC power 105, connect, described the 1st ac motor 101 of driven by power that utilizes this AC power 105 is object with the aircondition of the motor drive 100 of described the 2nd ac motor 102.And described motor drive 100 possesses above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 is carried out the phase controlling means 106 that phase controlling is used.And described motor drive 100 also possesses connecting and is provided with on the 1st supply of electric power line 121 of above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, and has the 1st coil L1 of the 1st inductance value of regulation.Also have, described motor drive 100 also possesses and is diverging out from above-mentioned the 1st supply of electric power line 121, with what be provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, have the 2nd inductance value that is different from described the 1st inductance value, and make the 2nd coil L2 of described the 2nd impeller 20L with the rotating speed rotation that is different from described the 1st impeller 20R.
In the 8th utility model, utilize the different of the 1st coil L1 and the 2nd coil L2 inductance value, the 1st ac motor 101 and the 2nd ac motor 102 drive separately impeller 20R, 20L with mutually different rotating speed rotation.By means of this, the 1st impeller 20R and the 2nd impeller 20L are rotated with mutually different rotating speed, can prevent the generation of abnormal sound.
Fig. 1 is the stereogram of indoor set of the aircondition of example 1.
Fig. 2 is the drawing in side sectional elevation of indoor set of the aircondition of example 1.
Fig. 3 is the profilograph of indoor set of the aircondition of example 1.
Fig. 4 is the motor drive circuit of example 1 and the structure chart of control circuit.
Fig. 5 is the motor drive circuit of example 2 and the structure chart of control circuit.
Fig. 6 is the structure chart of existing motor drive circuit and control circuit.
With reference to the accompanying drawings example of the present utility model is illustrated below.
Example 1
As shown in Figure 1, the aircondition of this example possesses the air-conditioning unit indoor set 1 that is arranged at the corner portion that is formed by the ceiling 71 in room and sidewall 72.
Have on the shell 10 of indoor set 1 from the suction inlet 41 of the interior indoor air of below suction with to the indoor blow-off outlet 42,43,44 of regulating air that blows out.Blow-off outlet 42,43,44 is by forwards blowing out the place ahead blow-off outlet 43 of regulating air and blowing out the side exit 44 of regulating air and constitute from the oblique to the left and right bight blow-off outlet 42 of regulating air that blows out of corner portion to the side.
The place ahead blow-off outlet 43 is formed at the place ahead of shell 10, and its opening extends in the horizontal direction.
Bight blow-off outlet 42 is adjacent to be opened on the bight, the left and right sides of shell 10 across dividing plate 84 and the place ahead blow-off outlet 43.
Side blow-off outlet 44 is adjacent to be opened on the left and right sides of shell 10 across dividing plate 85 and bight blow-off outlet 42.
That is to say the place ahead blow-off outlet 43, bight blow-off outlet 42 and side blow-off outlet 44 across dividing plate 84,85 from shell 10) the front extend to form continuously to two sides.And horizontal baffle (flap) 81,82,83 is set at each blow-off outlet 42,43,44.
As shown in Figure 2, form the air flue 45 of connection suction inlet 41 in the inside of above-mentioned shell 10 to each blow-off outlet 42,43,44.In air flue 45, dispose from below suck room air and heat or cool off the heat exchanger 30 that forms the adjusting air to 2 turbofan impellers that laterally blow out with to room air.
Linking the driving shaft (not shown) of going up the fan motor 101,102 that extends in vertical direction (above-below direction) on each impeller 20R, 20L as rotary body.Two impeller 20R, 20L utilize each fan motor 101,102 rotation that is made of single-phase AC motor to drive, form from the below inhaled air to the structure that laterally blows out.Again, the below of each impeller 20R, 20L disposes the horn mouth 27 of the room air that flows into to air flue 45 from suction inlet 41 being introduced impeller 20R, 20L.
Above-mentioned heat exchanger 30 uses the what is called intersection fin type heat exchanger that is made of many sheet wing leaves and the heat-transfer pipe that connects each wing leaf extension.This heat exchanger 30 from the front of shell 10 along the bight and both sides be shaped as and it seems the shape that is roughly " コ " font from the top.
As shown in Figures 2 and 3, above-mentioned 2 impeller 20R, 20L and fan motor 101,102 are arranged at the inside of shell 10, and the interval with regulation on the width of this shell 10 is provided with.It all is to take right handed structure that two impeller 20R, 20L it seems from the top of shell 10.
Between above-mentioned two impeller 20R, 20L, the front heat exchange department 31 from the backplate 15 of shell 10 to heat exchanger 30 is provided with dividing plate 46.That is above-mentioned each impeller 20R, 20L and fan motor 101,102 be disposed at heat exchange department 31, the heat exchange department 32 of side, dividing plate 46 by the front of this heat exchanger 30, and in the space that surrounds of the backplate 15 of shell 10.
So, clip dividing plate 46, both sides form it seems from the place ahead of shell 10 and to be in right-hand impeller 20R and fan motor 101 at the 1st fan 25R of above-mentioned the place ahead blow-off outlet 43 1 side direction facing to the direction rotation of dividing plate 46, and the 2nd fan 25L that is in the direction rotation that the impeller 20L of left and fan motor 102 far go from dividing plate 46 in described the place ahead blow-off outlet 43 1 side direction.
Between above-mentioned two turbofan 25R, 25L and horn mouth 27,27, dispose the switch enclosure 61 of control circuit 110 of holding motor drive circuit 100 and fan motor 101,102 etc.This switch enclosure 61 by be clipped between two horn mouths 27,27 lower switches box 62a and above this lower switches box 61a outstanding, littler than lower switches box 61a upper switches box 61b constitute.
Below with reference to Fig. 4 the structure of motor drive circuit 100 and control circuit 110 is illustrated.
The 1st fan motor 101 and the 2nd fan motor 102 that constitute with ac motor are connected in AC power 105 by common motor drive circuit 100.The common wire 120 that connects AC power 105 and two desk fan motor 101,102 is set on the motor drive circuit 100.Common wire 120 is provided with plug connector 104 midway.Be provided with the reactor 107 and the shared solid-state relay 106 that are connected in series mutually between this plug connector 104 and the AC power 105, and and their auxiliary capacitors 103 of being arranged in parallel.And general solid-state relay 106 is the semiconductor elements that are used for fan motor 101,102 is carried out phase controlling, and in this example, it is that the two-way thyristor of 3 terminals constitutes.
The 1st fan motor 101 and the 2nd fan motor 102 of being provided with parallel with one another on plug connector 104.The 1st capacitor 108 with the 1st capacitance is set between plug connector 104 and the 1st fan motor 101.The 2nd capacitor 109 with the 2nd capacitance is set between plug connector 104 and the 2nd fan motor 102.And the 1st capacitance and the 2nd capacitance different.
Electricity is provided with the 1st capacitor 108 with the 1st capacitance in connection as the shared solid-state relay 106 of phase controlling means and the 1st supply of electric power line 121 of the 1st fan motor 101 in other words.And diverging out, and provide the 2nd supply of electric power line 122 of electric power that the 2nd capacitor 109 with the 2nd capacitance that is different from the 1st capacitance is set to the 2nd fan motor 102 from shared solid-state relay 106 from the 1st supply of electric power line 121.
Also have, the 1st capacitor 108 can be the capacitor of the different identical type of capacitance with the 2nd capacitor 109, or the mutually different capacitor of kind.And the 1st fan motor 101 and the 2nd fan motor 102 are motor of identical type and same capability.
Drive the control signal that road 113 is accepted from CPU111, the driving signal of stipulating is outputed to shared solid-state relay 106.Also have, speed detect circuit 112 is rotating speed detection means of the present utility model, and CPU111 and drive circuit 113 are rotating speed control devices of the present utility model.
Operation of air conditioner action below with reference to Fig. 1～3 pair described aircondition is illustrated.
The running of above-mentioned aircondition Once you begin, impeller 20R, 20L just rotate under the driving of fan motor 101,102, and room air is sucked in the shells 10 from suction inlet 41.At this moment, the 1st fan motor 101 is with the rotation of the 1st rotating speed, and the 2nd fan motor rotates with the 2nd rotating speed, and therefore, the 1st impeller 20R rotates with the 1st rotating speed, and the 2nd impeller 20L rotates with the 2nd rotating speed.That is to say that the 1st impeller 20R rotates with different rotating speeds with the 2nd impeller 20L.
The room air that sucks shell 10 inside is flowed through air flue 45 by horn mouth 27, flows into impeller 20R, 20L and flows out to the side of impeller 20R, 20L afterwards.At this moment, the room air that flows out from two impeller 20R, 20L passes through heat exchanger 30.The refrigerant of the not shown refrigerating circuit that goes out is flowing in the inside of heat exchanger 30.
And at heat exchanger 30, when carrying out the cold air operation, this refrigerant and room air carry out evaporating after the heat exchange, with the room air cooling, generate the adjusting air of low temperature.And when heating installation moved, this refrigerant and room air carried out heat exchange and condensing, with the room air heating, generated the higher adjusting air of temperature.Then, this regulates air by the place ahead blow-off outlet 43, bight blow-off outlet 42 and sidepiece blow-off outlet 44, mainly blows out to 3 directions in the place ahead and both sides of indoor set 1, blows to indoor vast scope.
Below with reference to Fig. 4 the run action of two desk fan 25R, 25L is illustrated.
Offer two desk fan motor 101,102 after the phase controlling of alternating current from AC power 105 through shared solid-state relay 106.Again, between shared solid-state relay 106 and the 1st fan motor 101, the 1st capacitor 108 is set, therefore offers the alternating voltage generation of the 1st fan motor 101 and the 1st capacitance respective phase delay of the 1st capacitor 108.Equally, between shared solid-state relay 106 and the 2nd fan motor 102, the 2nd capacitor 109 is set, therefore offers the alternating voltage generation of the 2nd fan motor 102 and the 2nd capacitance respective phase delay of the 2nd capacitor 109.
Here, because the 1st capacitance and the 2nd capacitance do not wait, so the delay of the voltage-phase of the 1st fan motor 101 and the 2nd fan motor 102 is different.Therefore, two desk fan motor 101,102 rotate with mutually different rotating speed.
On the other hand, the speed detect circuit 112 of control circuit 110 detects the rotating speed of the 1st fan motor, and this testing result is outputed to CPU111.CPU111 calculates the deviation of the rotating speed of the detected rotating speed of the 1st fan motor and regulation, control signal is outputed to drive circuit 113 so that this deviation becomes zero.And drive circuit 113 carries out phase controlling by shared solid-state relay 106, makes the rotating speed of each fan motor 101,102 reach the rotating speed of regulation separately respectively.
As mentioned above, adopt this example, utilize the capacitance difference of the capacitor 108,109 of setting each fan motor 101,102, between the 1st fan motor 101 and the 2nd fan motor 102, set speed discrepancy, so each fan motor 101,102 needn't be provided with solid-state relay respectively.As a result, it is just much of that to drive 1 solid-state relay of 101,102 needs of two desk fan motor.Therefore, simplified the structure of motor drive circuit 100, device has also been realized cost degradation.
Again, the only rotating speed control motor speed of the fan motor 101 of foundation one side, so speed detect circuit is as long as one just much of that, and the structure of testing circuit can be simplified.Again, because solid-state relay is as long as one just much of that, so its drive circuit is also as long as one just much of that.Therefore, the driving circuit structure of solid-state relay has also been simplified.Adopt this example like this, then Motor Control has been simplified, and by control circuit 110 designs simplifications, can be with more cheap price structure device.
Because drive circuit 100 and control circuit 110 have been simplified, can reduce the space that is used to be provided with electric components again.As a result, can realize the miniaturization of switch-box 61.
Example 2
This example except that the 1st capacitor 108, also is provided with the 1st resistor R 1 and as the 1st choking-winding L1 of the 1st coil, simultaneously as shown in Figure 5.Except the 2nd capacitor 109, the 2nd resistor R 2 also is set and as the 2nd choking-winding L2 of the 2nd coil.
That is to say that the 1st supply of electric power line 121 possesses not shown main circuit 121a, 121b that main winding connected.And auxiliary circuit 121c and main winding that not shown auxiliary winding connects are connected in parallel.
At auxiliary circuit 121c be connected in series the 1st capacitor the 108, the 1st resistor R 1 and the 1st choking-winding L1.And on main circuit 121a, be connected in series the 1st resistor R 1 and the 1st choking-winding L1.
On the other hand, the 2nd supply of electric power line 122 is the same with described the 1st supply of electric power line 121, possesses not shown main circuit 122a, 122b that main winding connected.And auxiliary circuit 122c and main winding that not shown auxiliary winding connects are connected in parallel.
At auxiliary circuit 122c be connected in series the 2nd capacitor the 109, the 1st resistor R 2 and the 2nd choking-winding L2.And on main circuit 122a, be connected in series the 2nd resistor R 2 and the 2nd choking-winding L2.
And, the 2nd capacitance of the 1st inductance value of the 1st resistance value of the 1st capacitance of described the 1st capacitor 108, the 1st resistor R 1 and the 1st choking-winding L1, the 2nd capacitor 109, and the 2nd inductance value of the 2nd resistance value of the 2nd resistor R 2 and the 2nd choking-winding L2, be set to such an extent that make the 1st fan motor 101 different with the 2nd fan motor 102 rotating speeds.
Specifically, if the 2nd resistance value of the 1st resistance value of described the 1st resistor R 1 and the 2nd resistor R 2 is set at different value, then the voltage that applies on the 1st fan motor 101 and the 2nd fan motor 102 is just different, and the 1st fan motor 101 is just different with the rotating speed of the 2nd fan motor 102.In this case, the 1st inductance value of the 1st capacitance of described the 1st capacitor 108 and the 1st choking-winding L1 is identical with the 2nd inductance value of the 2nd capacitance of the 2nd capacitor 109 and the 2nd choking-winding L2.That is to say that described the 1st choking-winding L1 and the 2nd choking-winding L2 can not be provided with yet.
Again, if the 1st inductance value of the 1st choking-winding L1 and the 2nd inductance value of the 2nd choking-winding L2 are set at different value, then the phase place of the voltage that applies on the 1st fan motor 101 and the 2nd fan motor 102 is different in advance, and the 1st fan motor 101 is different with the rotating speed of the 2nd fan motor 102.In this case, the 1st resistance value of the 1st capacitance of described the 1st capacitor 108 and the 1st resistor R 1 is identical with the 2nd resistance value of the 2nd capacitance of the 2nd capacitor 109 and the 2nd resistor R 2.That is to say that described the 1st resistor R 1 and the 2nd resistor R 2 can not be provided with yet.
The 1st capacitance that can be described the 1st capacitor 108 again is identical with the 2nd capacitance of the 2nd capacitor 109, and the 1st inductance value of the 1st resistance value of the 1st resistor R 1 and the 1st choking-winding L1 is different with the 2nd inductance value of the 2nd resistance value of the 2nd resistor R 2 and the 2nd choking-winding L2.
The 1st resistance value that can be the 1st resistor R 1 again is identical with the 2nd resistance value of the 2nd resistor R 2, and the 1st inductance value of the 1st capacitance of the 1st capacitor 108 and the 1st choking-winding L1 is different with the 2nd inductance value of the 2nd capacitance of the 2nd capacitor 109 and the 2nd choking-winding L2.That is to say, described the 1st resistor R 1 and the 2nd resistor R 2 also can be set.
The 1st inductance value that can also be described the 1st choking-winding L1 is identical with the 2nd inductance value of the 2nd choking-winding L2, and the 1st resistance value of the 1st capacitance of the 1st capacitor 108 and the 1st resistor R 1 is different with the 2nd resistance value of the 2nd capacitance of the 2nd capacitor and the 2nd resistor R 2.That is to say, described the 1st choking-winding L1 and the 2nd choking-winding L2 also can be set.
Can be again the 1st inductance value of the 1st resistance value of the 1st capacitance, the 1st resistor R 1 of the 1st capacitor 108 and the 1st choking-winding L1 with the 2nd inductance value of the 2nd resistance value of the 2nd capacitance of the 2nd capacitor 109, the 2nd resistor R 2 and the 2nd choking-winding L2 can be different.
To sum up, as long as set each capacitor 108,109, each resistor R 1, R2 and each choking-winding L1, L2 to such an extent that make described the 1st fan motor 101 different with the rotating speed of the 2nd fan motor 102.Other structures, effect and effect are identical with example 1.
Other examples
Above-mentioned example is the situation of 2 ac motors, and the utility model also is applicable to the situation of the ac motor more than 3 certainly.That is to say, will set differently with capacitance of corresponding each capacitor of each ac motor etc.
Again, the applicable object of motor drive of the present utility model is not limited to pressure fan, also goes for compressor etc.
As mentioned above, if employing the utility model, between AC power and the 1st ac motor, the 1st capacitor is set, between AC power and the 2nd ac motor, capacitance 2nd capacitor different with the 1st capacitor is set, can not rely on phase controlling means ground and between two ac motors, speed discrepancy is set.Therefore as long as two ac motors are provided with shared phase controlling means,, can reduce the number of the phase controlling means that need while just the rotating speed that speed discrepancy is controlled two motors can be set.Consequently, structure that can simplification device realizes cost degradation and saves the space.
Owing to possess the rotating speed detection means and the output signal that receives this speed detector of the either party's who detects two ac motors rotating speed, the phase controlling means are controlled, make the rotating speed control device of the rotating speed of two motors for the rotating speed of regulation, can seek to simplify rotating speed detection means and rotating speed control device, make control be more prone to and reduce the cost of device, save installing space.
Utilization can prevent the abnormal sound that causes that interferes with each other between two pressure fans with the method for two ac motors as the drive motor use of the pressure fan of aircondition, can realize the low noiseization of air-conditioning.
Again, between above-mentioned AC power and the 1st ac motor, the 1st resistance is set, between AC power and the 2nd ac motor, resistance value 2nd method of resistor different with the 1st resistance is set, can between two ac motors, speed discrepancy be set.
Again, between above-mentioned AC power and the 1st ac motor, the 1st coil is set, the method for inductance value 2nd coil different with the 1st coil is set between AC power and the 2nd ac motor, can between two ac motors, speed discrepancy be set.
Utilize above-mentioned resistance or coil, the same with capacitor, device is oversimplified, can realize cost degradation and save the space.
Claims (8)
1. a motor drive is the motor drive of a plurality of ac motors 101,102 of connection parallel with one another on an AC power 105, it is characterized in that,
The phase controlling means 106 of above-mentioned each ac motor 101,102 are set,
On each supply of electric power line 121,122 of the fork of above-mentioned each ac motor 101,102 that is connected in parallel, a certain at least among the different capacitor of capacitance 108,109, resistor R 1, R2 and inductance value that resistance value is different different coil L1, the L2 is set.
2. a motor drive is to drive on an AC power 105 to connect and the 1st ac motor 101 of connection parallel with one another and the motor drive of the 2nd ac motor 102, it is characterized in that,
Possess to above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 carry out phase controlling means 106 that phase controlling uses,
The 1st capacitor 108 that on the 1st supply of electric power line 121 that connects above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, is provided with, and
Diverging out from above-mentioned the 1st supply of electric power line 121, being provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, capacitance and the 2nd different capacitor 109 of above-mentioned the 1st capacitor 108.
3. a motor drive is to drive on an AC power 105 to connect and the 1st ac motor 101 of connection parallel with one another and the motor drive of the 2nd ac motor 102, it is characterized in that possessing
To above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 carry out phase controlling means 106 that phase controlling uses,
The 1st resistor R 1 that on the 1st supply of electric power line 121 that connects above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, is provided with, and
Diverging out from above-mentioned the 1st supply of electric power line 121, being provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, resistance value and the 2nd different resistor R 2 of above-mentioned the 1st resistor R 1.
4. a motor drive is to drive on an AC power 105 to connect and driving the 1st ac motor 101 of connection parallel with one another and the motor drive of the 2nd ac motor 102, it is characterized in that possessing
To above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 carry out phase controlling means 106 that phase controlling uses,
The 1st coil L1 that on the 1st supply of electric power line 121 that connects above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, is provided with, and
Diverging out from above-mentioned the 1st supply of electric power line 121, so that the 2nd coil L2 that inductance value is different with above-mentioned the 1st coil L1 to be set to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106.
5. according to each the described motor drive in the claim 1～4, it is characterized in that possessing
Detect the either party's of the 1st ac motor 101 and the 2nd ac motor 102 the rotating speed detection means 112 of rotating speed, and
Reception is controlled phase controlling means 106 from the output signal of this rotating speed detection means 112, and the rotating speed that makes the 1st ac motor 101 and the 2nd ac motor 102 is the rotating speed control device 111,113 that is respectively the rotating speed of its regulation.
6. an aircondition possesses
Blow regulate the 1st impeller 20R that air uses and the 2nd impeller 20L,
Drive described the 1st impeller 20R the 1st ac motor 101,
Drive the 2nd ac motor 102 of described the 2nd impeller 20L, and
On AC power 105, connect, utilize described the 1st ac motor 101 of driven by power of this AC power 105 and the motor drive 100 of described the 2nd ac motor 102, it is characterized in that,
Described motor drive 100 possesses
To above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 carry out phase controlling means 106 that phase controlling uses,
On the 1st supply of electric power line 121 that connects above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, be provided with, and the 1st capacitor 108 with the 1st capacitance of regulation, and
Diverging out from above-mentioned the 1st supply of electric power line 121, with what be provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, has the 2nd capacitance that is different from described the 1st capacitance, the 2nd capacitor 109 that described the 2nd impeller 20L is rotated with the rotating speed that is different from described the 1st impeller 20R.
7. an aircondition possesses
Blow regulate the 1st impeller 20R that air uses and the 2nd impeller 20L,
Drive described the 1st impeller 20R the 1st ac motor 101,
Drive the 2nd ac motor 102 of described the 2nd impeller 20L, and
On AC power 105, connect, utilize described the 1st ac motor 101 of driven by power of this AC power 105 and the motor drive 100 of described the 2nd ac motor 102, it is characterized in that,
Described motor drive 100 possesses
To above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 carry out phase controlling means 106 that phase controlling uses,
On the 1st supply of electric power line 121 that connects above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, be provided with, and have the 1st resistor R 1 of the 1st resistance value of regulation, and
Diverging out from above-mentioned the 1st supply of electric power line 121, to be provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, make described the 2nd impeller 20L with the rotating speed rotation that is different from described the 1st impeller 20R, resistance value is the 2nd resistor R 2 that is different from the 2nd resistance value of described the 1st resistance value.
8. an aircondition possesses
Blow regulate the 1st impeller 20R that air uses and the 2nd impeller 20L,
Drive described the 1st impeller 20R the 1st ac motor 101,
Drive the 2nd ac motor 102 of described the 2nd impeller 20L, and
On AC power 105, connect, utilize described the 1st ac motor 101 of driven by power of this AC power 105 and the motor drive 100 of described the 2nd ac motor 102, it is characterized in that,
Described motor drive 100 possesses
To above-mentioned the 1st ac motor 101 and the 2nd ac motor 102 carry out phase controlling means 106 that phase controlling uses,
On the 1st supply of electric power line 121 that connects above-mentioned phase controlling means 106 and above-mentioned the 1st ac motor 101, be provided with, and have the 1st coil L1 of the 1st inductance value of regulation, and
Diverging out from above-mentioned the 1st supply of electric power line 121, with what be provided with to the 2nd supply of electric power line 122 of above-mentioned the 2nd ac motor 102 supply capabilities from above-mentioned phase controlling means 106, has the 2nd inductance value that is different from described the 1st inductance value, the 2nd coil L2 that described the 2nd impeller 20L is rotated with the rotating speed that is different from described the 1st impeller 20R.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2145599 | 1999-01-29 | ||
| JP021455/99 | 1999-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2408385Y true CN2408385Y (en) | 2000-11-29 |
Family
ID=34044639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00201597 Expired - Lifetime CN2408385Y (en) | 1999-01-29 | 2000-01-31 | Motor driver and air conditioner with said device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2408385Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107482B (en) * | 2005-02-21 | 2010-05-26 | 松下电器产业株式会社 | Fan filter unit |
| CN102661285A (en) * | 2007-04-25 | 2012-09-12 | 大金工业株式会社 | Fan control system |
| CN110285546A (en) * | 2019-07-12 | 2019-09-27 | 青岛海尔空调器有限总公司 | Control method and air conditioner indoor unit for air conditioner indoor unit |
-
2000
- 2000-01-31 CN CN 00201597 patent/CN2408385Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107482B (en) * | 2005-02-21 | 2010-05-26 | 松下电器产业株式会社 | Fan filter unit |
| CN102661285A (en) * | 2007-04-25 | 2012-09-12 | 大金工业株式会社 | Fan control system |
| CN102661285B (en) * | 2007-04-25 | 2014-12-17 | 大金工业株式会社 | Fan control system |
| CN110285546A (en) * | 2019-07-12 | 2019-09-27 | 青岛海尔空调器有限总公司 | Control method and air conditioner indoor unit for air conditioner indoor unit |
| CN110285546B (en) * | 2019-07-12 | 2021-07-23 | 青岛海尔空调器有限总公司 | Control method for air conditioner indoor unit and air conditioner indoor unit |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20001129 |