US 9,852,869 B2 · Switch module with a built-in structure of anti-surge and dual disconnection

Abstract

A switch module with a built-in structure of anti-surge and dual disconnection mainly comprises an overcurrent protection switch having plates and insulating elements for anti-surge and dual disconnection structure ingeniously built inside a heat-resisting housing. The switch module has a first connecting point and a second connecting point for operation. When overvoltage occurs, temperature of at least one metal oxide varistor would instantly rise up to a degree higher than the melting point thereof, melting at least one thermo-sensitive piece, loosening at least one spring element, displacing a pushing element and thus forcing the connecting points detaching from each other to turn off the switch and stop supplying electricity power; meanwhile, insulating elements would isolate conductive components such as thermo-sensitive pieces, spring elements and plates to further ensure a complete disconnection and more of electricity safety.

Drawings

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Drawings

Claims9

Dependent claims

A switch module with a built-in structure of anti-surge and dual disconnection, comprising:

a housing having a press button arranged atop thereof, and a first conductive plate, a second conductive plate and a third conductive plate arranged at a lower section thereof;
said first conductive plate being connected to a binary alloy conductive plate having a first connecting point, and the second conductive plate having a second connecting point on the surface of an upper section thereof corresponding to the first connecting point;
a moving rod linking up the bottom of the press button with one end and the binary alloy conductive plate with the other end for the first connecting point to contact the second connecting point, consequently turning on the switch, and for the first connecting point to detach from the second connecting point when current overload occurs and the binary alloy conductive plate is deformed due to high temperature, consequently turning off the switch, so as to form an overcurrent protection switch;
wherein a structure of anti-surge and dual disconnection is built inside the housing, including:
at least one metal oxide varistor being disposed under a plate and having a first surface and an opposite second surface;
at least one insulating element having a through hole arranged at a center thereof, an upper surface and a lower surface, said upper surface arranged correspondingly to the first surface of the metal oxide varistor;
at least one conductive spring element having an outer periphery with an extended portion connecting the first surface of the metal oxide varistor with the second conductive plate, and a springy section being compressed by the first surface of the metal oxide varistor in the through hole of the insulating element;
at least one thermo-sensitive piece which is conductive and solid colloid to be disposed in the through hole of the insulating element for the springy section of the spring element to be adhered between the lower surface of the insulating element and the first surface of the metal oxide varistor for electrical connection and for the spring element to be ready for ejection;
and
a pushing element having a first end thereof arranged correspondingly to the metal oxide varistor, the insulating element and the springy section of the spring element, and a second end thereof arranged correspondingly to the binary alloy conductive plate for pushing;
whereby when the first connecting point is contacting the second connecting point and an overvoltage occurs, temperature of the metal oxide varistor would instantly rise up to a degree higher than the melting point thereof, therefore melting the thermo-sensitive piece, loosening the springy section of the spring element and displacing the pushing element to force the first connecting point detaching from the second connecting point and turn off the switch;
meanwhile, the insulating element also disconnects the circuit structure simultaneously.

9 more elements

A switch module with a built-in structure of anti-surge and dual disconnection, comprising:

a housing having a press button arranged atop thereof, and a first conductive plate, a second conductive plate and a third conductive plate arranged at a lower section thereof;
said first conductive plate being connected to a binary alloy conductive plate having a first connecting point, and the second conductive plate having a second connecting point on the surface of an upper section thereof corresponding to the first connecting point;
a moving rod linking up the bottom of the press button with one end and the binary alloy conductive plate with the other end for the first connecting point to contact the second connecting point, consequently turning on the switch, and for the first connecting point to detach from the second connecting point when current overload occurs and the binary alloy conductive plate is deformed due to high temperature, consequently turning off the switch, so as to form an overcurrent protection switch;
wherein a structure of anti-surge and dual disconnection is built inside the housing, including:
a first metal oxide varistor being disposed under a plate and having a first surface and an opposite second surface;
a first insulating element having a through hole arranged at a center thereof, an upper surface and a lower surface, said upper surface arranged correspondingly to the first surface of the first metal oxide varistor;
at least one conductive spring element having an outer periphery with a first extended portion connecting the first surface of the first metal oxide varistor with the second conductive plate, and a springy section being compressed in the through hole of the first insulating element by the first surface of the first metal oxide varistor;
a first thermo-sensitive piece which is conductive and solid colloid to be disposed in the through hole of the first insulating element for the springy section of the spring element to be compressed and adhered between the lower surface of the first insulating element and the first surface of the first metal oxide varistor for electrical connection and for the spring element to be ready for ejection;
a second metal oxide varistor having a first surface and an opposite second surface;
said first surface compressing the spring element;
a second insulating element having a through hole arranged at a center thereof, an upper surface and a lower surface, said upper surface arranged correspondingly to the second surface of the second metal oxide varistor;
an electrical connector having an outer periphery with a second extended portion electrically connecting the second surface of the second metal oxide varistor with the third conductive plate, and a springy section being compressed by the lower surface of the second insulating element and the second surface of the second metal oxide varistor;
a second thermo-sensitive piece which is conductive and solid colloid to be disposed in the through hole of the second insulating element, electrically connecting the electrical connector and the second surface of the second metal oxide varistor;
and
a pushing element having a first end thereof arranged correspondingly to the second surface of the second metal oxide varistor, the second insulating element and the electrical connector, and a second end thereof arranged correspondingly to the binary alloy conductive plate for pushing;
whereby when the first connecting point is contacting the second connecting point and an overvoltage occurs, temperature of either of the metal oxide varistors would instantly rise up to a degree higher than the melting point thereof, therefore melting a corresponding thermo-sensitive piece, loosening the springy section of the spring element and displacing the pushing element to force the first connecting point detaching from the second connecting point and turn off the switch;
meanwhile, either of the insulating elements also disconnects either of the circuit structures simultaneously.

14 more elements

A switch module with a built-in structure of anti-surge and dual disconnection, comprising:

a housing having a press button arranged atop thereof, and a first conductive plate, a second conductive plate and a third conductive plate arranged at a lower section thereof;
said first conductive plate being connected to a binary alloy conductive plate having a first connecting point, and the second conductive plate having a second connecting point on the surface of an upper section thereof corresponding to the first connecting point;
a moving rod linking up the bottom of the press button with one end and the binary alloy conductive plate with the other end for the first connecting point to contact the second connecting point, consequently turning on the switch, and for the first connecting point to detach from the second connecting point when current overload occurs and the binary alloy conductive plate is deformed due to high temperature, consequently turning off the switch, so as to form an overcurrent protection switch;
wherein a structure of anti-surge and dual disconnection is built inside the housing, including:
a first metal oxide varistor being disposed under a plate and having a first surface and an opposite second surface;
a first insulating element having a through hole arranged at a center thereof, an upper surface and a lower surface, said upper surface arranged correspondingly to the first surface of the first metal oxide varistor;
a conductive first spring element having an outer periphery with a first extended portion connecting the first surface of the first metal oxide varistor with the second conductive plate, and a springy section being compressed in the through hole of the first insulating element by the first surface of the first metal oxide varistor;
a first thermo-sensitive piece which is conductive and solid colloid to be disposed in the through hole of the first insulating element for the springy section of the first spring element to be compressed and adhered between the lower surface of the first insulating element and the first surface of the first metal oxide varistor for electrical connection and for the first spring element to be ready for ejection;
a second metal oxide varistor having a first surface and an opposite second surface;
said first surface compressing the first spring element;
a second insulating element having a through hole arranged at a center thereof, an upper surface and a lower surface, said upper surface arranged correspondingly to the second surface of the second metal oxide varistor;
a conductive second spring element having an outer periphery with a second extended portion electrically connecting the second surface of the second metal oxide varistor with the third conductive plate, and a springy section being compressed in the through hole of the second insulating element by the second surface of the second metal oxide varistor;
a second thermo-sensitive piece which is conductive and solid colloid to be disposed in the through hole of the second insulating element for the springy section of the second spring element to be compressed and adhered between the lower surface of the second insulating element and the second surface of the second metal oxide varistor for electrical connection and for the second spring element to be ready for ejection;
a third metal oxide varistor having a first surface and an opposite second surface;
said second surface compressing the second spring element;
a third insulating element having a through hole arranged at a center thereof, an upper surface and a lower surface, said upper surface arranged correspondingly to the first surface of the third metal oxide varistor;
an electrical connector having an outer periphery with a third extended portion electrically connecting to the third metal oxide varistor and the plate with the ground, and a springy section being compressed under the third insulating element and the first surface of the third metal oxide varistor;
a third thermo-sensitive piece which is conductive and solid colloid to be disposed in the through hole of the third insulating element for the springy section of the electrical connector to be compressed and adhered between the lower surface of the third insulating element and the first surface of the third metal oxide varistor for electrical connection and for the electrical connector to be ready for ejection;
and
a pushing element having a first end thereof arranged correspondingly to the first surface of the third metal oxide varistor, the third insulating element and the electrical connector, and a second end thereof arranged correspondingly to the binary alloy conductive plate for pushing;
whereby when the first connecting point is contacting the second connecting point and an overvoltage occurs, temperature of either of the metal oxide varistors would instantly rise up to a degree higher than the melting point thereof, therefore melting a corresponding thermo-sensitive piece, loosening the springy section of a corresponding spring element and displacing the pushing element to force the first connecting point detaching from the second connecting point and turn off the switch;
meanwhile, either of the insulating elements also disconnects either of the circuit structures simultaneously.

19 more elements

Dependencies are inferred from the claim text.

Description5,038 words

Summary1,635 words

#1. Field of the Invention

#The present invention relates to a switch module with a built-in structure of anti-surge and dual disconnection, particularly to one that has conductive plates disconnecting a series connection and an anti-surge structure disconnecting a parallel connection by insulation elements.

#2. Description of the Related Art

Brief description of the drawings17 figures

#FIG. 1A is a perspective view of an overcurrent protection switch according to the prior art;

#FIG. 1B is a section view of an overcurrent protection switch according to the prior art;

#FIG. 2A is a perspective view of an anti-surge disconnection structure according to U.S. Pat. No. 8,643,462;

Detailed description3,084 words

#Referring to FIGS. 3-6, in a first embodiment, the present invention mainly includes a housing 31, a moving rod 33, and an anti-surge disconnection structure 70.

#The housing 31 has a press button 32 arranged atop thereof, and a first conductive plate 40 as a positive electrode, a second conductive plate 50 as another positive electrode and a third conductive plate 60 as a negative electrode arranged at a lower section thereof. The first conductive plate 40 is connected to a binary alloy conductive plate 41 that has a spring leaf 42 and a first connecting point 421, and the second conductive plate 50 has a second connecting point 511 corresponding to the first connecting point 421.

#The moving rod 33 has a top end arranged at the bottom of the press button 32 and a bottom end connecting to a movable end 411 of the binary alloy conductive plate 41. With reference to FIG. 4, when pressing the press button 32, the binary alloy conductive plate 41 ejects upwards and the spring leaf 42 ejects downwards to make the first connecting point 421 contacting the second connecting point 511 and thus turn on the switch; when current overload occurs, the binary alloy conductive plate 41 deforms due to high temperature and detach the first connecting point 421 from the second connecting point 511 to turn the switch off back to the original status as shown in FIG. 3, so as to form a switch module 30 with an overcurrent protection switch.

Facts

Application

15/389,885Filed 23 Dec 2016 · continuation in part

Priority

24 Nov 2015

Published

US 2017/0148601 A125 May 2017

Granted

26 Dec 2017

Term ends

24 Nov 2035

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification9 codes

H01H 89/04
Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any…:…
H01H 37/761
Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material:…
H01H 71/20
Electrothermal mechanisms: with fusible mass
H01H 9/0271
Bases, casings, or covers: structurally combining a switch and an electronic component

Family

Application14/950,069Parent of this continuation-in-part · filed 24 Nov 2015

US 2017/0148602 A1Pre-grant publication · published 25 May 2017

US 2017/0148601 A1Published application

US 9,805,899 B2Related patent

US 9,852,869 B2This patent

From the US filing history. Foreign family members aren’t listed.

Switch module with a built-in structure of anti-surge and dual disconnection

Life of this patent

Switch module with a built-in structure of anti-surge and dual disconnection

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims9

Description5,038 words

Drawings

Classification9 codes

Life of this patent

Description5,038 words