JPH01170384A - Controller for electric cleaner - Google Patents

Controller for electric cleaner

Info

Publication number
JPH01170384A
JPH01170384A JP32502787A JP32502787A JPH01170384A JP H01170384 A JPH01170384 A JP H01170384A JP 32502787 A JP32502787 A JP 32502787A JP 32502787 A JP32502787 A JP 32502787A JP H01170384 A JPH01170384 A JP H01170384A
Authority
JP
Japan
Prior art keywords
motor
diode
time
current
semiconductor switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP32502787A
Other languages
Japanese (ja)
Inventor
Hidetoshi Imai
秀利 今井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP32502787A priority Critical patent/JPH01170384A/en
Publication of JPH01170384A publication Critical patent/JPH01170384A/en
Pending legal-status Critical Current

Links

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  • Electric Vacuum Cleaner (AREA)
  • Motor And Converter Starters (AREA)

Abstract

PURPOSE:To reduce the rush current of a semiconductor switch at the time of starting a motor by supplying a half-wave voltage to the motor at the time of starting the motor, and supplying a full-wave voltage to the motor at the time of normal operation. CONSTITUTION:When a power switch 8 is closed, a semiconductor switch 2 is closed. In this case, a transistor 5 is turned OFF by the time constant of a resistor 9 and a capacitor 6 for a predetermined period of time. Thus, a current for rotating a motor flows through a diode 3, and the voltage applied to the motor 1 becomes a half-wave. After a predetermined time is elapsed, the transistor 5 is turned ON. Thus, the current for rotating the motor is bypassed through the diode 3, and the voltage applied to the motor 1 becomes a full-wave. Thus, it can prevent an excess current from flowing to the semiconductor switch at the time of starting the motor.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は電気掃除機の制御装置に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a control device for a vacuum cleaner.

従来の技術 従来の電気掃除機の制御装置の一例としては、第3図に
示すようなモータ制御回路が用いられている。
2. Description of the Related Art As an example of a conventional vacuum cleaner control device, a motor control circuit as shown in FIG. 3 is used.

図において、12は電気掃除機駆動用のモータ、13は
ゲート制御式半導体スイッチで、例えばトライアック(
GE商標名)、14は電源スイッチ、15は電源である
。電源スイッチ14をONにすると、半導体スイッチ1
3のゲートに電流が流れ、半導体スイッチ13がONし
てモータ12が回転するようになっている。
In the figure, 12 is a motor for driving a vacuum cleaner, and 13 is a gate-controlled semiconductor switch, such as a triac (
GE trademark name), 14 is a power switch, and 15 is a power source. When the power switch 14 is turned on, the semiconductor switch 1
A current flows through the gate of the motor 3, turning on the semiconductor switch 13 and causing the motor 12 to rotate.

発明が解決しようとする問題点 上記のような従来の方式では、入力の高いモータを使用
した際電源スイッチ14を入れた瞬間に電源!5のブレ
ーカが落ちたり、また過大電流が半導体スイッチI3に
流れ、素子の劣化を早めたり、さらに半導体スイッチを
破壊したりするという問題があった。
Problems to be Solved by the Invention In the conventional system as described above, when a motor with a high input power is used, the power is turned off the moment the power switch 14 is turned on. There were problems in that the breaker No. 5 would trip, and excessive current would flow through the semiconductor switch I3, accelerating the deterioration of the device and even destroying the semiconductor switch.

本発明の目的は上記のような問題点を解消し、電源スイ
ッチを入れた瞬間には過大電流が流れず、時間が経過す
ると定常運転ができるという回路を設けた電気掃除機の
制御装置を提供しようとするものである。
The purpose of the present invention is to solve the above-mentioned problems and provide a control device for a vacuum cleaner equipped with a circuit that prevents excessive current from flowing at the moment the power switch is turned on, and allows steady operation after a period of time. This is what I am trying to do.

問題点を解決するための手段 本発明は上記目的達成のため、電気掃除機のモータを制
御する回路であって、2連の電源スイッチの内の一方を
電源とダイオードのアノードに接続し、他方をトランジ
スタのコレクタとベース間に接続し、前記電源スイッチ
を投入時は前記ダイオードを通して電流が供給され、前
記抵抗と電解コンデンサで決められた時定数により、一
定時間が経過するとダイオードの両端をダイオードブリ
ッジを介し、前記トランジスタで短絡して電流の経路を
変更するようにした電気掃除機の制御装置とした。
Means for Solving the Problems In order to achieve the above object, the present invention provides a circuit for controlling the motor of a vacuum cleaner, in which one of the two power switches is connected to the power supply and the anode of the diode, and the other is connected to the power supply and the anode of the diode. is connected between the collector and base of the transistor, and when the power switch is turned on, current is supplied through the diode, and after a certain period of time has passed, both ends of the diode are connected to a diode bridge. In this vacuum cleaner control device, the current path is changed by short-circuiting the transistor.

作用 本発明は上記のような構成をとったので、電源スイッチ
を入れてモータを始動する時は2連の電源スイッチの一
方からダイオードを介して半波でモータの回転を行ない
、定常時には2連の電源スイッチの他方を通し、前記ダ
イオードの両端を短絡してトランジスタによる全波で運
転するようにした。したがって半導体スイッチに過大電
流が流れて、これを破壊したり、劣化させたりするのを
阻止し、起動時にブレーカが落ちないようになった。
Operation Since the present invention has the above-described configuration, when the power switch is turned on to start the motor, the motor is rotated in a half wave from one of the two power switches via the diode, and during normal operation, the motor is rotated in half waves. The other end of the power switch was connected to short-circuit both ends of the diode, so that full-wave operation was performed by the transistor. This prevents excessive current from flowing through the semiconductor switch and damaging or deteriorating it, and prevents the breaker from tripping during startup.

実施例 以下、一実施例として示した回路図について説明する。Example A circuit diagram shown as an example will be described below.

lはモータ、2は半導体スイッチで、トライアック(商
標名)を使用した。このモータlと半導体スイッチ2と
の間にダイオード3が接続されている。又ダイオード3
の両端にはダイオードブリッジ4の入力側が接続され、
その出力側にはトランジスタ5が接続されている。トラ
ンジスタ5のエミッタとベース間には電解コンデンサ6
とディスチャージ用抵抗7が接続されている。父上記ト
ランジスタ5のコレクタには2連の電源スイッチ8の他
方を通して抵抗9が接続されている。上記2連の電源ス
イッチ8の一方は半導体スイッチ2のゲートと電流制限
用抵抗IOにつながっている。
1 is a motor, 2 is a semiconductor switch, and TRIAC (trade name) is used. A diode 3 is connected between the motor l and the semiconductor switch 2. Also diode 3
The input side of the diode bridge 4 is connected to both ends of the
A transistor 5 is connected to its output side. An electrolytic capacitor 6 is connected between the emitter and base of the transistor 5.
and a discharge resistor 7 are connected. A resistor 9 is connected to the collector of the transistor 5 through the other of two power switches 8. One of the two power switches 8 is connected to the gate of the semiconductor switch 2 and the current limiting resistor IO.

1!は電源を示す。1! indicates power supply.

上記のような構成において、先ず2連の電源スイッチ8
を閉じた瞬間には半導体スイッチ2のゲートに電流制限
用抵抗lOを通して電流が流れ、半導体スイッチ2はO
Nする。この時点ではトランジスタ5のベース電圧は、
抵抗9と電解コンデンサ6どの時定数により制御され、
ON電圧には達していないので、トランジスタ5はOF
F状態である。従ってモータ回転用の電流はダイオード
3を通して流れ、モータlに印加される電圧は第2図(
a)のように半波になる。次にそのまましばらく時間が
経過すると、電解コンデンサ6の両端の電圧が、トラン
ジスタ5のON電圧に達し、トランジスタがONする。
In the above configuration, first, the two power switches 8
At the moment when the semiconductor switch 2 is closed, a current flows through the current limiting resistor lO to the gate of the semiconductor switch 2, and the semiconductor switch 2
Do N. At this point, the base voltage of transistor 5 is
Controlled by the time constant of resistor 9 and electrolytic capacitor 6,
Since the ON voltage has not been reached, transistor 5 is turned off.
It is in F state. Therefore, the current for motor rotation flows through diode 3, and the voltage applied to motor l is shown in Figure 2 (
It becomes a half wave as shown in a). After a while, the voltage across the electrolytic capacitor 6 reaches the ON voltage of the transistor 5, and the transistor is turned on.

こうなるとモータ回転用の電流はダイオード3をバイパ
スして、トランジスタ5のコレクタからエミッタへと流
れるので、モータlに印加される電圧は第2図(b)の
ように全波となる。
In this case, the current for motor rotation bypasses the diode 3 and flows from the collector to the emitter of the transistor 5, so that the voltage applied to the motor 1 becomes a full wave as shown in FIG. 2(b).

上記のように本実施例では、2連の電源スイッチを投入
時と定常時とにより電流の経路を変更するように働き、
安全で構成の簡単な制御装置が実現できた。
As mentioned above, in this embodiment, the two power switches work to change the current path depending on when it is turned on and when it is in steady state.
A safe and easily configured control device has been realized.

発明の効果 上記のように本発明によれば、モータの始動時にはダイ
オードによる半波でモータを回転させるので過大電流が
流れることなく、電力のエネルギーを半減させ、定常時
には前記ダイオードを短絡する電流経路に変更して通常
動作をさせることができるようになった。したがってモ
ータ起動時における半導体スイッチの突入電流を半減し
、半導体スイッチの破壊を防止し寿命を延ばすことがで
きると共に、起動時にブレーカが落ちるような現象も阻
止することが可能となった。
Effects of the Invention As described above, according to the present invention, when the motor is started, the motor is rotated in a half wave by the diode, so that no excessive current flows, and the power energy is halved, and during normal operation, the current path short-circuits the diode. You can now change it to normal operation. Therefore, the inrush current of the semiconductor switch at the time of starting the motor can be halved, the damage of the semiconductor switch can be prevented and the life of the switch can be extended, and it is also possible to prevent the phenomenon of the breaker tripping at the time of starting the motor.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す制御装置の回路図、第
2図 (a)  (b)は起動時と定常時のモータ印加
電圧の波形図、第3図は従来の制御装置6の一例を示す
回路図である。 1・・・モータ  2・・・半導体スイッチ3・・・ダ
イオード  5・・・トランジスタ6・・・電解コンデ
ンサ  9・・・抵抗1:モータ 第2図 (a) (b)
Fig. 1 is a circuit diagram of a control device showing an embodiment of the present invention, Fig. 2 (a) and (b) are waveform diagrams of motor applied voltage at startup and steady state, and Fig. 3 is a conventional control device 6. It is a circuit diagram showing an example. 1... Motor 2... Semiconductor switch 3... Diode 5... Transistor 6... Electrolytic capacitor 9... Resistor 1: Motor Figure 2 (a) (b)

Claims (1)

【特許請求の範囲】[Claims] 電気掃除機のモータを制御する回路であって、2連の電
源スイッチの内の一方を電源とダイオードのアノードに
接続し、他方をトランジスタのコレクタとベース間に接
続し、前記電源スイッチを投入時は前記ダイオードを通
して電流が供給され、前記抵抗と電解コンデンサで決め
られた時定数により、一定時間が経過するとダイオード
の両端をダイオードブリッジを介し、前記トランジスタ
で短絡して電流の経路を変更するようにしたことを特徴
とする電気掃除機の制御装置。
A circuit for controlling the motor of a vacuum cleaner, in which one of the two power switches is connected to the power source and the anode of the diode, and the other is connected between the collector and base of the transistor, and when the power switch is turned on. A current is supplied through the diode, and after a certain period of time has passed, both ends of the diode are short-circuited by the transistor via a diode bridge to change the current path. A vacuum cleaner control device characterized by:
JP32502787A 1987-12-21 1987-12-21 Controller for electric cleaner Pending JPH01170384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32502787A JPH01170384A (en) 1987-12-21 1987-12-21 Controller for electric cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32502787A JPH01170384A (en) 1987-12-21 1987-12-21 Controller for electric cleaner

Publications (1)

Publication Number Publication Date
JPH01170384A true JPH01170384A (en) 1989-07-05

Family

ID=18172327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32502787A Pending JPH01170384A (en) 1987-12-21 1987-12-21 Controller for electric cleaner

Country Status (1)

Country Link
JP (1) JPH01170384A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110165972A (en) * 2019-05-22 2019-08-23 江苏美佳马达有限公司 The intelligence control system and method for motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110165972A (en) * 2019-05-22 2019-08-23 江苏美佳马达有限公司 The intelligence control system and method for motor

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