OPENING AND CLOSING CONTROL SYSTEM AND OPENING AND CLOSING CONTROL APPARATUS

• US 20160044822A1
• Filed: 03/31/2014
• Published: 02/11/2016
• Est. Priority Date: 04/04/2013
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: IMAI, Koji
• Granted Patent: US 10,149,404 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E05F 15/71 responsive to temperature changes, rain, wind or noise
• CPC Class Codes: F28F 13/00 Arrangements for modifying heat-transfer, e.g. increasing, decreasing F28F1/00 - F28F11/00 take precedence
• CPC Class Codes: H05K 7/20009 using a gaseous coolant in electronic enclosures in cabinets of standardized dimensions H05K7/20536; in server cabinets H05K7/20709; in vehicle electronic casings H05K7/20845; in power control electronics H05K7/2089; in displays H05K7/20954
• CPC Class Codes: H05K 7/20209 Thermal management, e.g. fan control

Abstract

An opening and closing control system that controls an operation of an inlet port so that an external environment is detected more accurately and opening and closing of the inlet port is controlled more properly is provided. In the ventilation control system, an internal environment sensor detects an internal environment of a casing, and an external environment sensor is disposed apart from the casing without being in contact with the casing and detects an external environment of the casing which corresponds to the internal environment. Then, a calculation unit obtains the internal environment and the external environment detected by the internal environment sensor and the external environment sensor, and controls opening and closing of a ventilation port in response to difference between the internal environment and the external environment. According to the ventilation control system, the external environment sensor can be less susceptible to an effect of the presence of the casing when detecting the external environment, and can detect the external environment with high accuracy. Accordingly, opening and closing of the ventilation port can be controlled in an appropriate manner.

Claims

1. An opening and closing control system that controls an operation of an inlet port which is formed on a casing so as to be openable;

the opening and closing control system comprising;

an internal environment detecting section that detects an internal environment of the casing;

an external environment detecting section that is disposed apart from the casing without being in contact with the casing and detects an external environment of the casing which corresponds to the internal environment of the casing;

an environment acquiring section that obtains the internal environment and the external environment detected by the internal environment detecting section and the external environment detecting section; and

an opening and closing control section that controls opening and closing of the inlet port in response to difference between the internal environment and the external environment.

2. The opening and closing control system according to claim 1, wherein the external environment detecting section is generally surrounded by a fluid which is introduced into the casing through the inlet port.

3. The opening and closing control system according to claim 1, wherein the environment acquiring section obtains an external environment at least from the external environment detecting section via wireless communication.

4. The opening and closing control system according to claim 1, wherein the internal environment detecting section and the external environment detecting section each detect an internal temperature of the casing and an external temperature of the casing, respectively, and the opening and closing control section controls the inlet port to open when the external temperature of the casing is lower than the internal temperature of the casing, and controls the inlet port to close when the external temperature of the casing is higher than the internal temperature of the casing.

5. The opening and closing control system according to claim 1, wherein the internal environment detecting section and the external environment detecting section each detect a dew condensation state inside the casing and a dew condensation state outside the casing, and the opening and closing control section operates to open and close the inlet port in response to difference between the dew condensation state inside the casing and the dew condensation state outside the casing.

6. The opening and closing control system according to claim 5, wherein the opening and closing control section controls the inlet port to open when an inside of the casing is in a dew condensation state and an outside of the casing is not in a dew condensation state, and controls the inlet port to close when the inside of the casing is not in a dew condensation state and the outside of the casing is in a dew condensation state.

7. The opening and closing control system according to claim 1, further comprising an air-sending section that sends air to the casing.

8. An opening and closing control apparatus that controls an operation of an inlet port which is formed on a casing so as to be openable, the opening and closing control apparatus comprising:

a functional section that forms the opening and closing control system according to any one of claims 1 to 7.