Cleanroom

• US 9,347,681 B2
• Filed: 10/09/2012
• Issued: 05/24/2016
• Est. Priority Date: 09/26/2012
• Status: Active Grant

• Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: Jiang, Yunshao, Wu, Chunhao, Lin, Kunhsien, Wang, Yongqiang, Shu, Zhiyou, Guo, Zhenhua
• Primary Examiner(s): Kosanovic, Helena
• Application Number:
  US13/642,545
• Publication Number:
  US 20140087650A1
• Time in Patent Office: 1,323 Days
• Field of Search: 454/187
• US Class Current: 1/1
• CPC Class Codes: F24F 13/28 Arrangement or mounting of filters
• CPC Class Codes: F24F 3/167 Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed air distribution by perforated walls F24F7/10

Abstract

The present invention provides a cleanroom for storing glass substrates, and which comprises an exhaust is disposed on a bottom floor of the cleanroom. A first filtering device is arranged on a ceiling of the cleanroom to provide purified airflow to the cleanroom. A second filtering device is arranged on the bottom floor of the cleanroom jointly to create a vertical airflow with the first filtering device so as to reduce the turbulence within the cleanroom. The present invention can readily resolve the prior art issue in which the airborne particles stirred by turbulence within the cleanroom cannot be effectively eliminated.

Claims

1. A cleanroom for storing glass substrates, comprising

an exhaust disposed on a bottom floor of the cleanroom;

a first filtering device arranged on a ceiling of the cleanroom to provide purified airflow to the cleanroom;

a second filtering device including a blower and arranged on the bottom floor of the cleanroom to be spaced from and opposite to the first filtering device and to jointly create a vertical airflow with the first filtering device so as to reduce the turbulence within the cleanroom;

wherein the first filtering device includes,

a preliminary filter used to draw in and purify incoming airflow;

an intake having one end interconnected to the preliminary filter;

a housing with another end of the intake interconnected thereto;

an electrical motor disposed within the housing;

a fan coupled to the electrical motor and driving the incoming airflow from the first filtering device in a vertical direction toward the second filtering device to generate the vertical airflow;

an airflow regulator arranged under the fan to balance the airflow;

a filter disposed under the airflow regulator for filtering the airflow a second time;

a metallic protective screen is disposed on a bottom of the housing;

at least a mounting leg disposed under the bottom to fixedly attach to the ceiling and the bottom floor; and

a controlling unit is used to operate the electrical motor; and

wherein the blower of the second filtering device is arranged opposite to the fan of the first filtering device so as to guide and additionally drive the vertical airflow to move in the vertical direction for being discharged directly to the outside of the cleanroom, where the airflow moves directly through the cleanroom in the vertical direction.

2. A cleanroom for storing glass substrates, comprising

an exhaust disposed on a bottom floor of the cleanroom;

a first filtering device arranged on a ceiling of the cleanroom to draw in air and provide purified airflow into the cleanroom, the first filtering comprising a fan that drives the airflow in a vertical direction; and

a second filtering device including a blower and arranged on the bottom floor of the cleanroom to be spaced from and opposite to the first filtering device and to jointly create a vertical airflow with the first filtering device so as to reduce the turbulence within the cleanroom; and

wherein the blower of the second filtering device is arranged opposite to the fan of the first filtering device so as to guide and additionally drive the vertical airflow to move in the vertical direction for being discharged directly to the outside of the cleanroom, where the airflow moves directly through the cleanroom in the vertical direction, wherein each of the first and second filtering devices includes

a preliminary filter used to purify incoming airflow;

an intake having one end interconnected to the preliminary filter;

a housing with another end of the intake interconnected thereto;

an electrical motor disposed within each of the first and the second filtering device and coupled to the fan and the blower respectfully;

an airflow regulator arranged under the fan to balance the airflow;

a filter disposed under the airflow regulator for filtering the airflow a second time;

a metallic protective screen disposed on a bottom of the housing;

at least a mounting leg disposed under the bottom to fixedly attach to the ceiling and the bottom floor; and

a controlling unit used to operate the electrical motor.

3. The cleanroom as recited in claim 2, wherein the first filtering device is arranged onto the ceiling, and the exhaust is arranged on the bottom floor and the second filtering device is disposed on top of the exhaust.

4. The cleanroom as recited in claim 3, wherein the first filtering device and the second filtering device are arranged in-line with each other.

5. The cleanroom as recited in claim 4, wherein the cleanroom includes storing towers which are arranged onto the bottom floor for storing trays in which glass substrates are stored.

6. The cleanroom as recited in claim 5, wherein the cleanroom includes guiderail system which is mounted onto the bottom floor.

7. The cleanroom as recited in claim 6, wherein the cleanroom includes an automatic transporting apparatus moveably arranged on the guiderail system.

8. The cleanroom as recited in claim 7, wherein the automatic transporting apparatus includes a forklift for moving the tray disposed within the storing tower.

9. The cleanroom as recited in claim 8, wherein the guiderail system has two rails dividing the bottom floor into an internal zone and an external zone.

10. The cleanroom as recited in claim 9, wherein the second filtering device is disposed in the internal zone.