CN1968000A - Electromotor control device and electric vacuum cleaner using same - Google Patents
Electromotor control device and electric vacuum cleaner using same Download PDFInfo
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- CN1968000A CN1968000A CNA2006101424730A CN200610142473A CN1968000A CN 1968000 A CN1968000 A CN 1968000A CN A2006101424730 A CNA2006101424730 A CN A2006101424730A CN 200610142473 A CN200610142473 A CN 200610142473A CN 1968000 A CN1968000 A CN 1968000A
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Abstract
The subject of this invention is to provide a control device for motor which is capable of achieving higher input and where the input control by phase control can materialize in a wide range. The electromotor control device in accordance with the present invention comprises an electromotor which has at least two input terminals on high input side and low input side, and a control means which controls the input of the electromotor by switching the connection into a desired input terminal. This controller performs operation for a specified time with an input terminal on a low input side when starting the electric blower. When the electric blower is started, it is surely driven with low input for a specified time, thus this controller can materialize the control that can cope with flicker, by materializing higher input and reducing the current when starting.
Description
Technical field
The present invention relates to a kind of control device that uses motor, more particularly, relate to a kind of electric dust collector that is provided with the electric blower that has adopted commutating motor.
Background technology
At first, be example with electric blower and the control device thereof that constitutes by the commutating motor that is suitable for electric dust collector, use Fig. 2, Fig. 3 that existing general control device of electric motor is described.
Fig. 2 is the equivalent electric circuit block diagram of the commutating motor part in the existing electric blower, and Fig. 3 is that the circuit of electric dust collector constitutes block diagram.As shown in Figure 2, be provided with main excitation winding 63a in the A of the tooth portion (not shown) of field core, the end of main excitation winding 63a is connected with the high power input terminal 69a of electric blower 50, and the other end is connected with brush 65a.In addition, also be provided with secondary excitation winding 64a in the A of tooth portion, the end of this pair excitation winding 64a is connected with the high power input terminal 69a of main winding 63a, and the other end is connected with the low-power input terminal 71a of electric blower 50.
Equally, in another B of tooth portion (not shown) of field core, also be provided with main excitation winding 63b, the end of main excitation winding 63b be connected on the high power input terminal 69b of electric blower 50, the other end is connected with brush 65b.In addition, also be provided with secondary excitation winding 64b among the B of tooth portion, the end of secondary excitation winding 64b is connected with the high power input terminal 69b of main winding 63b, and the other end is connected with the low-power input terminal 71b of electric blower 50.
In addition, as shown in Figure 3, have 4 above-mentioned links (being high power input terminal 69a, 69b and low- power input terminal 71a, 71b) in the electric blower 50, wherein high power input terminal 69a, low-power input terminal 71a are connected with switching device shifter 53a, and high power input terminal 69b is connected with switching device shifter 53b with low-power input terminal 71b.
The bidirectional triode thyristor 54 of the conllinear of switching device shifter 53a through being used for being undertaken by phase control etc. power control is connected to mains supply, and the conllinear of switching device shifter 53b is connected with the other end of mains supply.
Below in the above-described configuration operational circumstances is described.When the user made the electric dust collector operation, mains supply provided power to electric blower 50, and electric blower 50 is driven.When electric blower 50 is driven, produce attraction, dust is picked up, make electric dust collector 30 implement the dust suction operation.
At this moment, the user can operate input adjusting device 52 according to the surrounding environment when the floor type of dust suction, dust situation and the dust suction just, adjusts on the desirable input power, and the input power during to electric dust collector 30 operations is adjusted.For instance, carry out dust suction at carpet long to fine hair, that dust is deep into the inside, to mainly being that the bigger dust of weight such as sand dust and handstone, volume carries out dust suction and when carrying out dust suction attached to ground dust etc., can improve the input power of electric dust collector 30, can carry out dust suction with very high efficient like this.On the contrary, only also dust can be picked up or need to reduce under the situation of dust suction noise, then can carry out dust suction again after the input power reduction with electric dust collector 30 at night etc. with less inhalation power at floor and floor tile face etc.
The operating conditions that this input power is carried out under the situation of control is described below.The input power adjustment can be divided into 2 kinds of occasions haply: a kind of is that electric blower 50 is operated under the highest input power, and another kind is to operate being lower than under the input power value of the highest input power.
At first, under the situation that hope is operated with the highest input power, when control unit 55 need be operated under the highest input power from judging from the indication of input adjusting device 52, then switching device shifter 53a, 53b are connected with high power input terminal 69a, 69b one side of electric blower 50, and bidirectional triode thyristor 54 is controlled under complete conducting (being complete conducting when the phase angle the is 0 °) state.At this moment, mains supply is added on the main excitation winding 63 in the electric blower 50 in the mode of complete conducting, supplies with maximum power in electric blower 50.
Next, when wishing input adjusting device 52 is adjusted the user, be emitted in the indication of operating under the input power that is lower than the highest input, control device 55 makes switching device shifter 53a, 53b is connected with low input terminal 71a, 71b one side of electric blower 50, and the phase angle of bidirectional triode thyristor 54 is changed, carry out carrying out the dust suction operation again after the phase control.When the phase angle when 0 ° increases gradually, the power that offers electric blower 50 will reduce gradually, and 30 of electric dust collectors are in being operated in the zone that is lower than the highest input power (example wherein can be opened flat 7-67816 with reference to the open communique spy of Japan Patent).
Summary of the invention
In recent years, international markets such as Europe, Asia, the Middle East being in great demand to the electric dust collector of high input power.Therefore, the electric blower that is contained in the electric dust collector also must be the type of high input power.
When the electric blower of above-mentioned high input power starts, can produce starting current in the moment of starting, make line voltage that voltage take place at short notice and descend.This line voltage that is produced by starting current falls (being specially the voltage decline ratio for reference voltage) and is called " transient voltage falls ", and all there is the statute of limitations each countries and regions to this, can not surpass the threshold value of regulation.The product that does not satisfy (promptly surpassing) this limits value can not be as merchandise sales.
In general, the electric blower that input power is high is compared with the low electric blower of input power, and side's current value that input power is high is also high naturally, and the transient starting electric current during the electric blower starting too.Fall aspect the value at transient voltage, the electric blower that input power is high also seems unfavorable.From the experience in past, if the commutating motor of input power set point about 1400W～1500W fully during conducting, the transient voltage that its starting current produces falls still and can be suppressed under the setting.But, if the input power set point of electric blower when complete conducting be 1600W or more than, transient voltage falls will exceed the regulation value.
Therefore, in order to realize high input power, the measure of having taked to suppress the voltage change that has in the existing electric dust collector.For example, adopt and be called the control mode of " starting at a slow speed (input power that will start moment set lowlyer, return again thereafter normal input power) " in when starting, thereby not only realize high input power but also reduce transient voltage and fall.But, fall the measure of preventing in order to realize such transient voltage, need to be provided with the circuit that starts control at a slow speed in the control device, manufacturing cost also can correspondingly increase, and is difficult to realize high input power in mode cheaply.
The present invention is intended to address the above problem, and its purpose is to provide a kind of electric dust collector that can meet the need of market, realize high input power with low cost.
In order to solve the above-mentioned problems in the prior art, control device of electric motor of the present invention comprises: the motor that is provided with at least 2 kinds of input terminals such as high input power side and low input power side with make the control device that switches being connected of desirable input terminal, motor is carried out input power control.When making motor starting, at first use the input terminal work official hour of low input power side.
Like this, when electric blower starts, inevitable in official hour, the driving earlier with low input power, thus can realize reaching high input power, the electric current in the time of can reducing starting again, solve the control that transient voltage falls problem.
The technique effect that the present invention produces is as follows.Control device of electric motor of the present invention can either be realized high input power, and can reduce the electric current when starting, and solves and falls relevant problem with transient voltage.
The specific embodiment of the invention is summarized as follows.Control device of electric motor in the present invention's the 1st scheme comprises: the motor that is provided with at least 2 kinds of input terminals such as high input power side and low input power side with make the control device that switches being connected of desirable input terminal, motor is carried out input power control.When making motor starting, at first use the input terminal work official hour of low input power side.Like this, when electric blower starts, inevitable in official hour, the driving earlier with low input power, thus can realize reaching high input power, the electric current in the time of can reducing starting again, solve the control that transient voltage falls problem.
The 2nd scheme is that the stipulated time Ts in the 1st scheme is set to: 20 milliseconds＜Ts＜1 second.Like this since the time that starting the time is operated with low input power can suitably be configured, so there is not the control of inharmonious sense in the operation can realize starting the time.
The 3rd scheme is that the motor in the 1st scheme is a commutating motor.Like this, owing in commutating motor, realized suppressing the measure that transient voltage falls, in the control of using commutating motor, can solve the problem that transient voltage falls.
The 4th scheme is that the commutating motor in the 3rd scheme is the electric blower that output shaft is provided with fan.Like this, owing in electric blower, realized suppressing the measure that transient voltage falls, therefore in the control of using electric blower, can solve the problem that transient voltage falls.
The 5th scheme is the electric dust collector that is provided with the control device of arbitrary scheme in the 1st～the 4th scheme.Like this, because the input power height of electric dust collector, and can fall relevant problem with transient voltage with very low cost solution, so the electric dust collector of a kind of usability height, low cost of manufacture can be provided.
Description of drawings
Fig. 1 is the operation chart of the control device of electric motor in one embodiment of the present of invention,
Fig. 2 is the block diagram of existing commutating motor,
Fig. 3 is the block diagram of the formation situation of the existing electric dust collector of expression.
In the above-mentioned accompanying drawing, 50 is electric blower, and 51 is mains switch, and 52 is the input power adjusting device, 53 is switching device shifter, and 54 is bidirectional triode thyristor, and 55 is control unit, and 63 is main excitation winding, 64 is secondary excitation winding, and 65 is brush, and 69 is the high power input terminal, and 71 is the low-power input terminal.
Embodiment
With reference to the accompanying drawings one embodiment of the present of invention are elaborated.It is pointed out that such embodiment does not have the effect that limits the scope of the invention.
(embodiment)
Below by Fig. 1 and use Fig. 3 one embodiment of the present of invention are described, the sort of electric blower that is made of commutating motor as shown in existing apparatus and the block diagram of control device have been shown among Fig. 3.Following description is that example is carried out with electric dust collector and the control operation thereof that the electric blower that is made of commutating motor is installed.Simultaneously, for existing apparatus in identical component parts, only put on identical symbol here, omit description to it.
The control procedure of the control device of electric motor in the electric blower of present embodiment has been shown among Fig. 1.As shown in fig. 1, when mains switch 51 is operated, when starting takes place electric blower 50, the certain elder generation of switching device shifter 53a, 53b is connected with low-power input terminal 71a, the 71b of electric blower 50.Like this, low-power input terminal 71a, the 71b of electric blower 50 are energized, thereby are operated under the low input power.
Through predefined desired time T s after, again transfer to the state under desired input power that input power adjusting device 52 set operated thereafter.Count the Ts that exceeds schedule time from starting the time after, the user can adjust arbitrarily the input power adjusting device, and electric dust collector 50 is operated under the desirable input power.
In addition, if the time T s that operates with low input power when starting is too short, just might surpasses transient voltage and fall threshold value, and oversize, it is also long then to transfer to the time required under the desirable input power, and the convenience during use will be affected.Therefore, the time of Ts preferably is set at: about 20 milliseconds＜Ts＜1 second.
Adopt after the foregoing description,, fall value when starting thereby can satisfy (promptly being no more than) legal transient voltage because electric blower must be to be under the connection status of low input power.
In addition, circuit connecting method recited above is an example.Obviously, even change over other various connection status, so long as equivalent electric circuit also can reach same effect.
In sum, the control device of electric motor among the present invention can be realized high input power, and can carry out large-scale input power control by phase control, thereby can extensively be useful under the occasions such as electric dust collector that adopt commutating motor.
Claims (5)
1. a control device of electric motor is characterized in that comprising: the motor that is provided with at least 2 kinds of input terminals such as high input power side and low input power side; With make the control device that switches being connected of desirable input terminal, motor is carried out input power control;
Wherein, when motor starting, at first use the input terminal work official hour of low input power side.
2. control device of electric motor as claimed in claim 1 is characterized in that: be set to from the moment stipulated time Ts that begin to count, that be operated under the low input power of starting: 20 milliseconds＜Ts＜1 second.
3. control device of electric motor as claimed in claim 1 is characterized in that: described motor is a commutating motor.
4. control device of electric motor as claimed in claim 3 is characterized in that: described commutating motor is the electric blower that output shaft is provided with fan.
5. an electric dust collector is characterized in that having used each the described control device of electric motor as in the claim 1～4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005319061 | 2005-11-02 | ||
| JP2005319061A JP2007129806A (en) | 2005-11-02 | 2005-11-02 | Controller for motor, and vacuum cleaner using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1968000A true CN1968000A (en) | 2007-05-23 |
Family
ID=38076598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101424730A Pending CN1968000A (en) | 2005-11-02 | 2006-10-26 | Electromotor control device and electric vacuum cleaner using same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2007129806A (en) |
| CN (1) | CN1968000A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101677737B (en) * | 2007-06-01 | 2013-08-21 | Lg电子株式会社 | Cleaner and method for driving the same |
| CN104365010A (en) * | 2012-06-27 | 2015-02-18 | 伊莱克斯公司 | Vacuum cleaners and methods of controlling a motor driven by a battery source in a vacuum cleaner |
| CN112641376A (en) * | 2020-12-11 | 2021-04-13 | 珠海格力电器股份有限公司 | Control method of dust collector and dust collector |
-
2005
- 2005-11-02 JP JP2005319061A patent/JP2007129806A/en active Pending
-
2006
- 2006-10-26 CN CNA2006101424730A patent/CN1968000A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101677737B (en) * | 2007-06-01 | 2013-08-21 | Lg电子株式会社 | Cleaner and method for driving the same |
| CN104365010A (en) * | 2012-06-27 | 2015-02-18 | 伊莱克斯公司 | Vacuum cleaners and methods of controlling a motor driven by a battery source in a vacuum cleaner |
| CN104365010B (en) * | 2012-06-27 | 2017-12-19 | 伊莱克斯公司 | The method of the motor driven in vacuum cleaner and control vacuum cleaner by battery supply |
| CN112641376A (en) * | 2020-12-11 | 2021-04-13 | 珠海格力电器股份有限公司 | Control method of dust collector and dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007129806A (en) | 2007-05-24 |
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