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1. US20210066008 - Temperature sensitive pellet type thermal fuse

官庁
アメリカ合衆国
出願番号 16644600
出願日 13.09.2018
公開番号 20210066008
公開日 04.03.2021
特許番号 11062863
特許付与日 13.07.2021
公報種別 B2
IPC
H01H 37/76
H電気
01基本的電気素子
H電気的スイッチ;継電器;セレクタ;非常保護装置
37熱応動スイッチ
74接点の開放運動のみあるいは閉成運動のみが加熱または冷却により行なわれるスイッチ
76可溶材料の溶融により,可燃材料の燃焼によりまたは爆発材料の爆発により作動される接点部材
CPC
H01H 37/764
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37Thermally-actuated switches
74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
764in which contacts are held closed by a thermal pellet
H01H 37/761
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37Thermally-actuated switches
74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
761with a fusible element forming part of the switched circuit
H01H 2037/762
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37Thermally-actuated switches
74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
761with a fusible element forming part of the switched circuit
762using a spring for opening the circuit when the fusible element melts
H01H 2037/768
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37Thermally-actuated switches
74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
768characterised by the composition of the fusible material
H01H 2037/769
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
37Thermally-actuated switches
74Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
76Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
769characterised by the composition of insulating fusible materials, e.g. for use in the thermal pellets
出願人 SCHOTT Japan Corporation
発明者 Tokihiro Yoshikawa
Toru Fujita
Noriyuki Maeda
Yuichi Nozaki
Ryota Sekioka
代理人 W. F. Fasse
優先権情報 JP2017-176289 14.09.2017 JP
2018170136 12.09.2018 JP
発明の名称
(EN) Temperature sensitive pellet type thermal fuse
要約
(EN)

The temperature sensitive pellet type thermal fuse includes a cylindrical case which has a first end and a second end, a temperature sensitive pellet, an insulating tube, a first lead which is inserted into the insulating tube and has an inner end serving as a contact portion, a movable contact which is electrically connected to the cylindrical case, a weak compression spring, a strong compression spring, and a second lead which is disposed on the second end of the cylindrical case. The movable contact includes a projecting contact portion which is provided at a central part of the movable contact, and the projecting contact portion and the contact portion of the first lead are in contact with each other inside the insulating tube.