JPS633825A - Electromotive cooking machinery - Google Patents
Electromotive cooking machineryInfo
- Publication number
- JPS633825A JPS633825A JP14665586A JP14665586A JPS633825A JP S633825 A JPS633825 A JP S633825A JP 14665586 A JP14665586 A JP 14665586A JP 14665586 A JP14665586 A JP 14665586A JP S633825 A JPS633825 A JP S633825A
- Authority
- JP
- Japan
- Prior art keywords
- electric motor
- rotation speed
- circuit
- motor
- breaker
- 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
Links
- 238000010411 cooking Methods 0.000 title description 3
- 238000001514 detection method Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
Landscapes
- Food-Manufacturing Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電動機の焼損防止機能を備えた電動調理器に
関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric cooking device having a function of preventing burnout of the electric motor.
従来の技術
従来２例えばミキサー（図示せず）などのように、容器
内でカッターを電動機からの回転力によって回転させて
材料を粉砕・切削するような電動調理器は、材料の質・
量によって負荷の状態が大きく変化する。従って電動機
が過負荷状態やロック状態が続いて焼損するのを防止す
るために特開昭６０−２１２１２７号及び特開昭６０−
２１２１２８号公報による第２図及び第３図に示す如く
過負荷状態やＯ−１り状態の時の電動機の巻線温度や電
動機に流れる過電流を検出して過電流しゃ断を動作させ
てしまうものがある。Conventional technology Conventional 2 An electric cooker, such as a mixer (not shown), which rotates a cutter inside a container using rotational force from an electric motor to crush and cut the material,
The load condition changes greatly depending on the amount. Therefore, in order to prevent the electric motor from being burnt out due to continued overload or locking, the
As shown in Figures 2 and 3 according to Publication No. 212128, a device that detects the winding temperature of the motor and the overcurrent flowing through the motor in an overload state or O-1 state and operates an overcurrent cutoff. There is.
発明が解決しようとする問題点
しかるに前者にあっては電動機の巻線温度を検知するま
でに意外に時間がかかり、後者にあっては過電流しゃ断
器の定常時の通電電流と、電動機の過負荷状態時やロッ
ク状態時に流れる電流に相当の差を取らないと過電流し
ゃ断器が誤しゃ断する等の問題がある。Problems to be Solved by the Invention However, in the former case, it takes an unexpectedly long time to detect the motor winding temperature, and in the latter case, it is difficult to detect the steady state current of the overcurrent breaker and the overcurrent of the motor. Unless there is a considerable difference between the currents flowing during the load state and the lock state, there will be problems such as the overcurrent breaker erroneously breaking the circuit.
問題点を解決するための手段
本発明は上記問題点を解決するｔめにｉされたものであ
り、電動機とこの電動機に接続され念過風流し用断器と
、前記電動機の回転数を検出し。Means for Solving the Problems The present invention has been developed to solve the above-mentioned problems, and includes an electric motor, a blower disconnector connected to the electric motor, and a rotation speed of the electric motor. death.
かつ、電動機の低回転数検出時に前記過電流しゃ断器に
充分な動作電流を供給する回転数検出・過電流しゃ断器
動作回路を備えた構成としたものである。Further, the present invention includes a rotation speed detection/overcurrent breaker operation circuit that supplies sufficient operating current to the overcurrent breaker when detecting a low rotation speed of the electric motor.
作用
このようにすることにより、電動機の過負荷状態時やロ
ック状態時には極端に低下する電動機の回転数を瞬時に
検知し、素早やく回転数検出・過電流しゃ断器動作回路
を働らかせる。By doing this, the rotation speed of the motor, which drops dramatically when the motor is overloaded or locked, is instantly detected, and the rotation speed detection/overcurrent breaker operation circuit is activated quickly.
実施例 以下２本発明の一実施例を図面に従って説明する。Example Two embodiments of the present invention will be described below with reference to the drawings.
第１図は本実施例の要部の回路ブロック図であり２図に
おいて４Ａは商用電源で、該電源４Ａにスイッチ３Ａと
回転数検出・過電流しゃ断器動作回路５Ａ（以下２回路
）５Ａを接続している。また、該回路５Ａには過電流し
ゃ断器（以下、しゃ断器）１Ａと電動機２Ａよジなる直
列回路を並列接続している。６Ａは回転数検出部で電動
機２Ａの回転数の検知信号を回路５Ａに入力している。Figure 1 is a circuit block diagram of the main part of this embodiment. In Figure 2, 4A is a commercial power supply, and the power supply 4A is connected to a switch 3A and a rotation speed detection/overcurrent breaker operation circuit 5A (hereinafter referred to as 2 circuits) 5A. Connected. Furthermore, a series circuit consisting of an overcurrent breaker (hereinafter referred to as breaker) 1A and a motor 2A is connected in parallel to the circuit 5A. Reference numeral 6A denotes a rotation speed detection section which inputs a detection signal of the rotation speed of the electric motor 2A to the circuit 5A.
次に本実施例の動作について述べる。Next, the operation of this embodiment will be described.
回転数検出部６Ａは、電動機２Ａの過負荷状態時や。The rotation speed detection unit 6A detects when the electric motor 2A is in an overload state.
ロック状態時に素早やく、かつ、確実に電動機２Ａの低
回転数の検知信号を回路５Ａに入力する。該検知信号を
受信した回路５Ａは直ちに回路５Ａ内の過電流しゃ断器
動作回路（説明省略）を働らかせてａａ点からしゃ断器
１Ａが充分に動作可能な電流を流し。To quickly and surely input a detection signal of a low rotational speed of an electric motor 2A to a circuit 5A in a locked state. Upon receiving the detection signal, the circuit 5A immediately activates an overcurrent breaker operating circuit (description omitted) within the circuit 5A to flow a current sufficient to operate the breaker 1A from point aa.
ｂｂ点から分岐させるバイパス回路によりしゃ断器１Ａ
を動作させる。Breaker 1A by bypass circuit branched from point bb
make it work.
発明の効果
以上２本発明によると、電動機の過負荷状態時やロック
状態時には極端に低下する電動機の回転数を確実、かつ
、素早やぐ検知出来るので、瞬時に電動機の通電電流を
しゃ断し、電動機の・焼損を確実に防止出来るとともに
早切れも同時に防止する電動調理器を提供出来る。Effects of the Invention (2) According to the present invention, it is possible to reliably and quickly detect the rotational speed of the motor, which drops extremely when the motor is overloaded or locked, so that the current flowing through the motor can be instantly cut off. To provide an electric cooker that can reliably prevent burnout of the electric motor and also prevent premature cutting.
第１図は本発明の一実施例による電動調理器の要部回路
ブクツク図、第２図及び第３図は従来の同要部の回路ブ
ロック図である。
１人・・・過電流しゃ断器、 ２Ａ・・・電動機。
５Ａ・・・回転数検出・過電流しゃ断器動作回路。FIG. 1 is a circuit diagram of the main parts of an electric cooking appliance according to an embodiment of the present invention, and FIGS. 2 and 3 are conventional circuit block diagrams of the same main parts. 1 person: Overcurrent breaker, 2A: Electric motor. 5A...Rotation speed detection/overcurrent breaker operation circuit.
Claims (1)
電流しゃ断器（１Ａ）と、前記電動機（２Ａ）の回転数
を検出し、かつ、電動機（２Ａ）の低回転数検出時に前
記過電流しゃ断器（１Ａ）に充分な動作電流を供給する
回転数検出・過電流しゃ断器動作回路（５Ａ）とを備え
た電動調理器。An electric motor (2A), an overcurrent breaker (1A) connected to this electric motor (2A), and a rotation speed of the electric motor (2A) are detected, and when a low rotation speed of the electric motor (2A) is detected, the overcurrent breaker (1A) is connected to the electric motor (2A). An electric cooker equipped with a rotation speed detection/overcurrent breaker operating circuit (5A) that supplies sufficient operating current to a current breaker (1A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14665586A JPS633825A (en) | 1986-06-23 | 1986-06-23 | Electromotive cooking machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14665586A JPS633825A (en) | 1986-06-23 | 1986-06-23 | Electromotive cooking machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS633825A true JPS633825A (en) | 1988-01-08 |
Family
ID=15412633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14665586A Pending JPS633825A (en) | 1986-06-23 | 1986-06-23 | Electromotive cooking machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS633825A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH072480A (en) * | 1993-01-13 | 1995-01-06 | Fujitec Co Ltd | Escalator device |
| JP2012024458A (en) * | 2010-07-27 | 2012-02-09 | Zojirushi Corp | Heating cooker and cooking method of the same |
-
1986
- 1986-06-23 JP JP14665586A patent/JPS633825A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH072480A (en) * | 1993-01-13 | 1995-01-06 | Fujitec Co Ltd | Escalator device |
| JP2012024458A (en) * | 2010-07-27 | 2012-02-09 | Zojirushi Corp | Heating cooker and cooking method of the same |
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