WO2008077304A1 - Commutateur à plaque oscillante doté d'un dispositif de protection contre les surintensités - Google Patents

Commutateur à plaque oscillante doté d'un dispositif de protection contre les surintensités Download PDF

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Publication number
WO2008077304A1
WO2008077304A1 PCT/CN2007/003467 CN2007003467W WO2008077304A1 WO 2008077304 A1 WO2008077304 A1 WO 2008077304A1 CN 2007003467 W CN2007003467 W CN 2007003467W WO 2008077304 A1 WO2008077304 A1 WO 2008077304A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
rocker
reset
guide
sensitive metal
Prior art date
Application number
PCT/CN2007/003467
Other languages
English (en)
Chinese (zh)
Inventor
Baichun Wu
Original Assignee
Baichun Wu
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 Baichun Wu filed Critical Baichun Wu
Publication of WO2008077304A1 publication Critical patent/WO2008077304A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/26—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by tumbler
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element

Definitions

  • the invention relates to a rocker switch, in particular to a rocker with a current overload protection device.
  • the rocker switch usually has two working conditions of passage and open circuit. Therefore, when one end of the rocker is pressed, the internal circuit of the switch presents a path, and at this time, the current can smoothly pass the switch; If the other end of the rocker is pressed, the circuit in the rocker switch is open, and the current cannot pass the switch. Since such a switch does not have any protection device, if a large current flows through the push button switch in an instant, the electric appliance controlled by the switch is likely to be damaged due to the overload of the current.
  • the general current overload protection device does not have the same control function as the ordinary switch, and can only be used as a protection device independently when used in an electric appliance. When the current overload protection device and the switch are double protected, the product space and product cost are increased, which is not conducive to the wide application of general civil products.
  • the technical problem to be solved by the present invention is to provide a rocker switch with a current overload protection device, which has the function of automatically breaking the circuit when the current is overloaded, thereby protecting the electrical appliance, and resetting after the overload is removed.
  • the technical problem to be solved by the present invention is to provide a rocker switch with a current overload protection device, which has the function of automatically breaking the circuit when the current is overloaded, thereby further protecting the electrical appliance. And it can be automatically reset after the overload is removed.
  • a rocker switch with a current overload protection device comprising a casing, a switching circuit and a control component, wherein the switch circuit is connected in series with a heat sensitive metal piece, in the switching circuit
  • a switch-switching rocker guide is also provided, which is connected in series with the heat-sensitive metal sheet by contact.
  • the rocker guide sheet of the present invention is a movable metal conductive rocker.
  • the heat sensitive metal sheet of the present invention is connected to a reset device.
  • the reset device of the present invention comprises a reset control slider, the reset control slider is provided with a bump, the switch switching rocker guide plate drives the reset control slider, and the bump on the reset control slider drives the heat sensitive metal piece to be reset .
  • the control assembly of the present invention is comprised of a resilient member secured to a central axis of the switch housing and underneath, the resilient assembly being in sliding contact with the rocker guide.
  • the control assembly of the present invention is a rotary structure.
  • the control assembly of the present invention is a sliding structure.
  • the invention utilizes the characteristics of the heat-sensitive metal sheet to generate a heat-sensitive effect when passing through different currents, realizing automatic protection of current overload, and the product structure is simple, safe and reliable.
  • Figure 1 is a schematic view of the switch in the on state of the switch.
  • FIG. 2 is a schematic view of the switch in the open state of the present invention.
  • FIG. 3 is a schematic diagram of the switch overload protection state of the present invention.
  • Figure 4 is a schematic view of the switch in the reset state of the present invention.
  • the present invention is composed of a switch housing 1, a switch circuit and a control unit 6.
  • the switch When the switch is in an on state, current is connected through the switch input guide 3, and the switch guide 5 is switched through the switch to the heat sensitive metal piece. 2 contact, and then connected to the switch output guide 4 through the heat sensitive metal piece 2, and output a current path through the output of the switch output guide 4.
  • the control assembly 6 is composed of a central shaft 6.1 fixed to the switch housing 1 and an elastic assembly 6.2 thereunder. When the control assembly 6 is pressed, the elastic assembly 6.2 is rotated by the control of the central shaft 6.1.
  • the elastic member 6.2 is pressed against the switch that is in sliding contact with it to switch the rocker guide 5 to tilt the other end thereof, thereby cutting off the contact between the switch switching rocker guide 5 and the heat-sensitive metal piece 2 to realize the switch breaking.
  • the switch-switching rocker guide 5 is a movable metal guide rocker.
  • the control unit 6 can also control the opening and closing of the switch switching rocker guide 2 in the circuit by means of a smooth push.
  • the invention uses a heat sensitive metal sheet 2 in series in a switch circuit, according to a heat sensitive metal sheet (also called a bimetal sheet), when it reaches a certain rated value by its own current, thereby heating physical properties, different metal expansion coefficients Differently, the heat-sensitive metal sheet is bent and deformed.
  • the present invention utilizes this feature to realize the current overload circuit of the inner loop of the switch, thereby realizing the overload protection of the rated current allowed by the switch.
  • FIG. 3 although the switch rocker is in the open position of the switch, the heat-sensitive metal piece 2 is bent and deformed, and the connection with the switch-switching rocker guide 5 is cut off, thereby making the circuit through the switch The circuit is open, thus enabling overload protection of the circuit loop through the switch.

Landscapes

  • Thermally Actuated Switches (AREA)
  • Breakers (AREA)

Abstract

Commutateur de protection contre les surintensités, comportant un boîtier (1), un circuit de commutation et un ensemble de commande (6). Le circuit de commutation comporte une bande métallique thermosensible (2) et une plaque oscillante conductrice (5) montées en série et au contact l'une de l'autre de manière à assurer une protection automatique en cas de surintensité. Un réarmement automatique peut être réalisé au moyen d'un curseur de commande de réarmement.
PCT/CN2007/003467 2006-12-27 2007-12-06 Commutateur à plaque oscillante doté d'un dispositif de protection contre les surintensités WO2008077304A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200620145326.4 2006-12-27
CNU2006201453264U CN200986906Y (zh) 2006-12-27 2006-12-27 带电流过载保护装置的翘板开关

Publications (1)

Publication Number Publication Date
WO2008077304A1 true WO2008077304A1 (fr) 2008-07-03

Family

ID=38916365

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003467 WO2008077304A1 (fr) 2006-12-27 2007-12-06 Commutateur à plaque oscillante doté d'un dispositif de protection contre les surintensités

Country Status (2)

Country Link
CN (1) CN200986906Y (fr)
WO (1) WO2008077304A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200986906Y (zh) * 2006-12-27 2007-12-05 吴柏纯 带电流过载保护装置的翘板开关
CN102709095A (zh) * 2012-05-17 2012-10-03 黄山奥特斯电气有限公司 一种翘板开关

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5541569A (en) * 1995-02-28 1996-07-30 Jang; Huey J. Switch having a circuit breaker
US6734779B2 (en) * 2002-08-24 2004-05-11 Tsung-Mou Yu Switch structure with overload protection
US6876290B2 (en) * 2002-08-24 2005-04-05 Tsung-Mou Yu Switch structure with overload protection
CN2840319Y (zh) * 2005-06-02 2006-11-22 宁波万事达综研电气有限公司 一种过载保护开关
CN200986906Y (zh) * 2006-12-27 2007-12-05 吴柏纯 带电流过载保护装置的翘板开关

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5541569A (en) * 1995-02-28 1996-07-30 Jang; Huey J. Switch having a circuit breaker
US6734779B2 (en) * 2002-08-24 2004-05-11 Tsung-Mou Yu Switch structure with overload protection
US6876290B2 (en) * 2002-08-24 2005-04-05 Tsung-Mou Yu Switch structure with overload protection
CN2840319Y (zh) * 2005-06-02 2006-11-22 宁波万事达综研电气有限公司 一种过载保护开关
CN200986906Y (zh) * 2006-12-27 2007-12-05 吴柏纯 带电流过载保护装置的翘板开关

Also Published As

Publication number Publication date
CN200986906Y (zh) 2007-12-05

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