# US 2020/0286702 A1 · Contact module, contact device, electromagnetic relay module, and electrical device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0286702 A1 - Document ID: US20200286702A1 - Status: Published application - Kind: A1 - Application number: 16/765,792 - Filed: 2018-11-21 - Published: 2020-09-10 - Earliest claimed: 2017-11-27 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Kazuhiro KODAMA; Ryosuke OZAKI; Shinya KIMOTO; Seiya SAKAGUCHI; Yasutaka HIEDA - Web page: https://patentgrep.com/patent/US20200286702A1 ## CPC - H01H 50/60: moving contact being rigidly combined with movable part of magnetic circuit {(for polarised relays H01H51/2254, H01H51/2281)} - H01H 1/54: by magnetic force {(combined with electrodynamic opening H01H77/101)} - H01H 50/10: Electromagnetic or electrostatic shielding (casings H01H50/02) - H01H 50/14: Terminal arrangements {(for coils H01H50/443)} - H01H 50/54: Contact arrangements - H01H 51/22: Polarised relays {(H01H51/284 takes precedence)} - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) ## Abstract A contact module includes a pair of contact devices, each of which includes a fixed terminal and a moving contactor. The moving contactor moves from a closed position where the moving contact is in contact with the fixed contact to an open position where the moving contact is out of contact with the fixed contact, and vice versa. One moving contactor generates, when energized, a magnetic field that applies force to the other moving contactor in a direction from the open position of the other moving contactor toward the closed position of the other moving contactor. The other moving contactor generates, when energized, a magnetic field that applies force to the one moving contactor in a direction from the open position of the one moving contactor toward the closed position of the one moving contactor. ## Claims ### Claim 1 A contact module comprising a pair of contact devices, the pair of contact devices consisting of one contact device and the other contact device, the one contact device including: one fixed terminal having one fixed contact; and one moving contactor having one moving contact and configured to move from a closed position where the one moving contact is in contact with the one fixed contact to an open position where the one moving contact is out of contact with the one fixed contact, and vice versa, the other contact device including: the other fixed terminal having the other fixed contact; and the other moving contactor having the other moving contact and configured to move from a closed position where the other moving contact is in contact with the other fixed contact to an open position where the other moving contact is out of contact with the other fixed contact, and vice versa, the pair of contact devices being arranged such that a direction in which the one moving contactor of the one contact device moves from the open position toward the closed position and a direction in which the other moving contactor of the other contact device moves from the open position toward the closed position are opposite from each other, the one moving contactor being configured to, when energized, generate a magnetic field that applies force, in a direction from the open position of the other moving contactor toward the closed position of the other moving contactor, to the other moving contactor, through which an electric current is flowing, the other moving contactor being configured to, when energized, generate a magnetic field that applies force, in a direction from the open position of the one moving contactor toward the closed position of the one moving contactor, to the one moving contactor, through which an electric current is flowing. ### Claim 2 (depends on 1) The contact module of claim 1, wherein the one moving contactor and the other moving contactor are located, in their direction of movement, between the one fixed contact of the one contact device and the other fixed contact of the other contact device, and have respectively different closed positions, and a direction in which the electric current flows through the one moving contactor and a direction in which the electric current flows through the other moving contactor are opposite from each other. ### Claim 3 (depends on 1) The contact module of claim 1, wherein the one moving contactor and the other moving contactor have, in their direction of movement, respectively different closed positions, the one fixed contact of the one contact device and the other fixed contact of the other contact device are located, in respective directions of movement of the one moving contactor and the other moving contactor, between the one moving contactor and the other moving contactor, and a direction in which the electric current flows through the one moving contactor and a direction in which the electric current flows through the other moving contactor are the same. ### Claim 4 A contact module comprising: a pair of contact devices consisting of one contact device and the other contact device; and a magnetic shield member having magnetic properties, the one contact device including: one fixed terminal having one fixed contact; and one moving contactor having one moving contact and configured to move from a closed position where the one moving contact is in contact with the one fixed contact to an open position where the one moving contact is out of contact with the one fixed contact, and vice versa, the other contact device including: the other fixed terminal having the other fixed contact; and the other moving contactor having the other moving contact and configured to move from a closed position where the other moving contact is in contact with the other fixed contact to an open position where the other moving contact is out of contact with the other fixed contact, and vice versa, the pair of contact devices being arranged such that a direction in which the one moving contactor of the one contact device moves from the open position toward the closed position and a direction in which the other moving contactor of the other contact device moves from the open position toward the closed position are opposite from each other, the one moving contactor being configured to, when energized, generate a magnetic field that applies force, in a direction from the closed position of the other moving contactor toward the open position of the other moving contactor, to the other moving contactor, through which an electric current is flowing, the other moving contactor being configured to, when energized, generate a magnetic field that applies force, in a direction from the closed position of the one moving contactor toward the open position of the one moving contactor, to the one moving contactor, through which an electric current is flowing, the magnetic shield member being arranged between the one moving contactor and the other moving contactor. ### Claim 5 (depends on 1) The contact module of claim 1, wherein in each of the one contact device and the other contact device, each of the one and the other fixed terminals includes a first fixed terminal and a second fixed terminal, each of the one and the other fixed contacts includes: a first fixed contact provided for the first fixed terminal; and a second fixed contact provided for the second fixed terminal, each of the one and the other moving contacts includes a first moving contact and a second moving contact configured to come into contact with the first fixed contact and the second fixed contact, respectively, when the one or the other moving contactor is located at the closed position. ### Claim 6 (depends on 1) A contact device included in the contact module of claim 1. ### Claim 7 (depends on 1) An electromagnetic relay module comprising: the contact module of claim 1; and a pair of electromagnet devices consisting of one electromagnet device and the other electromagnet device, the one electromagnet device being configured to move the one moving contactor, the other electromagnet device being configured to move the other moving contactor. ### Claim 8 (depends on 7) An electrical device comprising: the electromagnetic relay module of claim 7; and a holding member configured to hold the electromagnetic relay module such that a direction in which the one moving contactor moves from the open position toward the closed position and a direction in which the other moving contactor moves from the open position toward the closed position are opposite from each other. ### Claim 9 (depends on 4) The contact module of claim 4, wherein in each of the one contact device and the other contact device, each of the one and the other fixed terminals includes a first fixed terminal and a second fixed terminal, each of the one and the other fixed contacts includes: a first fixed contact provided for the first fixed terminal; and a second fixed contact provided for the second fixed terminal, each of the one and the other moving contacts includes a first moving contact and a second moving contact configured to come into contact with the first fixed contact and the second fixed contact, respectively, when the one or the other moving contactor is located at the closed position. ### Claim 10 (depends on 4) A contact device included in the contact module of claim 4. ### Claim 11 (depends on 4) An electromagnetic relay module comprising: the contact module of claim 4; and a pair of electromagnet devices consisting of one electromagnet device and the other electromagnet device, the one electromagnet device being configured to move the one moving contactor, the other electromagnet device being configured to move the other moving contactor. ### Claim 12 (depends on 11) An electrical device comprising: the electromagnetic relay module of claim 11; and a holding member configured to hold the electromagnetic relay module such that a direction in which the one moving contactor moves from the open position toward the closed position and a direction in which the other moving contactor moves from the open position toward the closed position are opposite from each other.