# US 12,222,278 B2 · Environmental testing device with enhanced electromagnetic effect > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,222,278 B2 - Document ID: US12222278B2 - Status: Granted - Kind: B2 - Application number: 17/818,238 - Filed: 2022-08-08 - Published: 2023-02-16 - Granted: 2025-02-11 - Earliest claimed: 2021-08-11 - Assignees: Espec Corp. - Applicants: Espec Corp. - Inventors: Masatoshi Tanabe - Web page: https://patentgrep.com/patent/US12222278B2 ## CPC - F24F 13/20: Casings or covers - G01N 17/002: {Test chambers} - B01L 1/025: {Environmental chambers} - G01N 25/18: by investigating thermal conductivity (by calorimetry G01N25/20; by measuring change of resistance of an electrically-heated body G01N27/18) - H05K 9/0007: {Casings (standardised racks H05K9/0062)} - B01L 2300/168: Specific optical properties, e.g. reflective coatings - B01L 2300/1883: using thermal insulation - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - B01L: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract An environmental testing device includes a heat insulation chamber that includes a test chamber and is formed using a heat insulation panel that is electrically conductible. The heat insulation chamber includes a chamber body having an entrance and a door that opens and closes the entrance. A heat insulation panel forming the chamber body includes an outer panel and an inner panel. A radiation-absorbent material is disposed between the outer panel and the inner panel. The heat insulation panel forming the chamber body and a heat insulation panel forming the door are connected to each other in an electrically conductible manner. ## Claims ### Claim 1 An environmental testing device comprising: a heat insulation chamber that includes a test chamber and is formed using a heat insulation panel that is electrically conductible; an air conditioner; and a blower for generating an air flow that causes air conditioned by the air conditioner to flow into the test chamber, wherein the heat insulation chamber includes a chamber body that has an entrance, and a door that opens and closes the entrance, a heat insulation panel forming the chamber body includes an outer panel and an inner panel disposed inside the outer panel, the environmental testing device further includes a radiation-absorbent material disposed in the heat insulation panel forming the chamber body between the outer panel and the inner panel, and the heat insulation panel forming the chamber body and a heat insulation panel forming the door are connected to each other in an electrically conductible manner. ### Claim 2 (depends on 1) The environmental testing device according to claim 1, wherein the heat insulation panel forming the chamber body is provided with an opening through which a shaft of the blower is inserted, and the environmental testing device further includes a shield box that is attached to the heat insulation panel provided with the opening so as to cover the opening and is electrically conductible with the heat insulation panel. ### Claim 3 (depends on 1) The environmental testing device according to claim 1, wherein the air conditioner includes an evaporator, the heat insulation panel forming the chamber body is provided with an opening through which a pipe leading to the evaporator is drawn out from the heat insulation chamber, and the environmental testing device further includes a shield box that is attached to the heat insulation panel provided with the opening so as to cover the opening and at least a part of the pipe and is electrically conductible with the heat insulation panel. ### Claim 4 An environmental testing device comprising: a heat insulation chamber that includes a test chamber and is formed using a heat insulation panel that is electrically conductible; an air conditioner; and a blower for generating an air flow that causes air conditioned by the air conditioner to flow into the test chamber, wherein the heat insulation chamber includes a chamber body that has an entrance, and a door that opens and closes the entrance, a heat insulation panel forming the chamber body includes an outer panel and an inner panel disposed inside the outer panel, the heat insulation panel forming the chamber body and a heat insulation panel forming the door are connected to each other in an electrically conductible manner, the heat insulation panel forming the chamber body is provided with an opening through which a shaft of the blower is inserted, and the environmental testing device further includes a shield box that is attached to the heat insulation panel provided with the opening so as to cover the opening from an outside of the heat insulation chamber and is electrically conductible with the heat insulation panel, wherein: the shield box is made of a conductive member, and a space is defined by the shield box and the heat insulation panel provided with the opening. ### Claim 5 An environmental testing device comprising: a heat insulation chamber that includes a test chamber and is formed using a heat insulation panel that is electrically conductible; an air conditioner for performing air conditioning and including an evaporator for exchanging heat between a refrigerant and air to evaporate the refrigerant; and a blower for generating an air flow that causes air conditioned by the air conditioner to flow into the test chamber, wherein the heat insulation chamber includes a chamber body that has an entrance, and a door that opens and closes the entrance, a heat insulation panel forming the chamber body includes an outer panel and an inner panel disposed inside the outer panel, the heat insulation panel forming the chamber body and a heat insulation panel forming the door are connected to each other in an electrically conductible manner, the heat insulation panel forming the chamber body is provided with an opening through which a pipe leading to the evaporator is drawn out from the heat insulation chamber, and the environmental testing device further includes a shield box that is attached to the heat insulation panel provided with the opening so as to cover the opening and at least a part of the pipe from an outside of the heat insulation chamber and is electrically conductible with the heat insulation panel, wherein: the shield box is made of a conductive member, and a space is defined by the shield box and the heat insulation panel provided with the opening. ### Claim 6 (depends on 2) The environmental testing device according to claim 2, further comprising a radiation-absorbent material disposed in a space defined by the shield box and the heat insulation panel provided with the opening. ### Claim 7 (depends on 4) The environmental testing device according to claim 4, further comprising a radiation-absorbent material disposed in the space defined by the shield box and the heat insulation panel provided with the opening. ### Claim 8 (depends on 5) The environmental testing device according to claim 5, further comprising a radiation-absorbent material disposed in the space defined by the shield box and the heat insulation panel provided with the opening. ### Claim 9 (depends on 1) The environmental testing device according to claim 1, wherein the heat insulation panel forming the chamber body is provided with an opening for passing through at least one of a water supply pipe and a drain pipe, and the environmental testing device further includes a shield box that is attached to the heat insulation panel provided with the opening so as to cover the opening and is electrically conductible with the heat insulation panel. ### Claim 10 (depends on 4) The environmental testing device according to claim 4, wherein the heat insulation panel forming the chamber body is provided with an opening for passing through at least one of a water supply pipe and a drain pipe, and the environmental testing device further includes a shield box that is attached to the heat insulation panel provided with the opening so as to cover the opening and is electrically conductible with the heat insulation panel. ### Claim 11 (depends on 5) The environmental testing device according to claim 5, wherein the heat insulation panel forming the chamber body is provided with an opening for passing through at least one of a water supply pipe and a drain pipe, and the environmental testing device further includes a shield box that is attached to the heat insulation panel provided with the opening so as to cover the opening and is electrically conductible with the heat insulation panel. ### Claim 12 (depends on 1) The environmental testing device according to claim 1, further comprising a conductive connection part that connects, in an electrically conductible manner, the heat insulation panel forming the chamber body and the heat insulation panel forming the door to each other, wherein the conductive connection part includes a frame member that is conductive and is disposed so as to be in contact with the heat insulation panel forming the chamber body, and a contact member that is conductive, is disposed so as to be in contact with the heat insulation panel forming the door and is in contact with the frame member when the door is at a position to close the entrance, and the frame member includes a shield gasket, a body part that has a frame shape and presses the shield gasket against the heat insulation panel forming the chamber body, and a connection part that is fixed to the body part and is configured to be brought into contact with the contact member when the door is at the position to close the entrance. ### Claim 13 (depends on 4) The environmental testing device according to claim 4, further comprising a conductive connection part that connects, in an electrically conductible manner, the heat insulation panel forming the chamber body and the heat insulation panel forming the door to each other, wherein the conductive connection part includes a frame member that is conductive and is disposed so as to be in contact with the heat insulation panel forming the chamber body, and a contact member that is conductive, is disposed so as to be in contact with the heat insulation panel forming the door and is in contact with the frame member when the door is at a position to close the entrance, and the frame member includes a shield gasket, a body part that has a frame shape and presses the shield gasket against the heat insulation panel forming the chamber body, and a connection part that is fixed to the body part and is configured to be brought into contact with the contact member when the door is at the position to close the entrance. ### Claim 14 (depends on 5) The environmental testing device according to claim 5, further comprising a conductive connection part that connects, in an electrically conductible manner, the heat insulation panel forming the chamber body and the heat insulation panel forming the door to each other, wherein the conductive connection part includes a frame member that is conductive and is disposed so as to be in contact with the heat insulation panel forming the chamber body, and a contact member that is conductive, is disposed so as to be in contact with the heat insulation panel forming the door and is in contact with the frame member when the door is at a position to close the entrance, and the frame member includes a shield gasket, a body part that has a frame shape and presses the shield gasket against the heat insulation panel forming the chamber body, and a connection part that is fixed to the body part and is configured to be brought into contact with the contact member when the door is at the position to close the entrance. ### Claim 15 (depends on 12) The environmental testing device according to claim 12, wherein the conductive connection part forms, in the test chamber, an adjacent space that is a space adjacent to a gap between the chamber body and the door in a state where the contact member is in contact with the connection part, and the adjacent space is isolated from a main space that is a space other than the adjacent space in the test chamber. ### Claim 16 (depends on 13) The environmental testing device according to claim 13, wherein the conductive connection part forms, in the test chamber, an adjacent space that is a space adjacent to a gap between the chamber body and the door in a state where the contact member is in contact with the connection part, and the adjacent space is isolated from a main space that is a space other than the adjacent space in the test chamber. ### Claim 17 (depends on 14) The environmental testing device according to claim 14, wherein the conductive connection part forms, in the test chamber, an adjacent space that is a space adjacent to a gap between the chamber body and the door in a state where the contact member is in contact with the connection part, and the adjacent space is isolated from a main space that is a space other than the adjacent space in the test chamber.