Temperature control system and control method for container data center

Abstract

A temperature control system includes a temperature switch, an air outlet valve, an air inlet valve, and a control device. The temperature switch is utilized to detect and determine the external temperature and internal temperature of a container. The control device receives a first and a second signal and determines whether the air outlet valve and the air inlet valve are opened or closed. When the control device receives the first signal, the control device opens the air outlet valve and the air inlet valve, when the control device receives the second signal, the control device closes the air outlet valve and the air inlet valve.

What is claimed is: 
     
         1 . A temperature control system for a container, comprising:
 a temperature switch for detecting and determining an external temperature and a internal temperature of the container, wherein when the internal temperature is greater than the external temperature, the temperature switch outputs a first signal, and when the internal temperature is less than the external temperature, the temperature switch outputs a second signal;   an air outlet valve;   an air inlet valve; and   a control device for receiving the first and the second signals and controlling the air outlet valve and the air inlet valve, wherein when the control device receives the first signal, the control device opens the air outlet valve and the air inlet valve, and when the control device receives the second signal, the control device closes the air outlet valve and the air inlet valve.   
     
     
         2 . The temperature control system of  claim 1 , wherein the air outlet valve is set on a top wall of the container and the air inlet valve is set on a bottom of the container. 
     
     
         3 . The temperature control system of  claim 1 , wherein the temperature switch comprising:
 a first hollow sphere made of heat-conductive material;   a second hollow sphere same as the first hollow sphere;   a communication pipe made of non-heat-conductive material and communicating with the first and second hollow spheres sealed;   a first variable resistor and a second variable resistor set on a top of the first hollow sphere and connected to the control device;   a first electrode and a second electrode set on a top of the second hollow sphere and connected to the control device; and   a conductive liquid contained in the communication pipe and the first and the second hollow spheres,   wherein the first hollow sphere is arranged outside the container, and the second hollow sphere is arranged inside the container; when the internal temperature is greater than the external temperature, a level of the conductive liquid in the first hollow sphere is raised to such a level that the first and second resistors are conducted through the conductive liquid, and when the internal temperature is less than the external temperature, a level of the conductive liquid in the second hollow sphere is raised to such a level that the first and second electrodes are conducted through the conductive liquid.   
     
     
         4 . The temperature control system of  claim 3 , wherein the first and second resistors are rheostats. 
     
     
         5 . A control method, comprising:
 detecting an external temperature and an internal temperature of a container through a temperature switch;   determining whether the internal temperature detected by the temperature switch is greater than the external temperature detected by the temperature switch or not through the temperature switch;   outputting a first signal to a control device through the temperature switch in response to the internal temperature is great than the external temperature;   outputting a second signal to the control device through the temperature switch in response to the internal temperature is less than the external temperature;   opening an air outlet valve and an air inlet valve through the control device in response to receive the first signal; and   closing the air outlet valve and the air inlet valve through the control device in response to receive the second signal.   
     
     
         6 . The control method of  claim 4 , wherein the temperature switch comprising:
 a first hollow sphere made of heat-conductive material;   a second hollow sphere same as the first hollow sphere;   a communication pipe made of non-heat-conductive material and communicating with the first and second hollow spheres sealed;   a first variable resistor and a second variable resistor set on a top of the first hollow sphere and connected to the control device;   a first electrode and a second electrode set on a top of the second hollow sphere and connected to the control device; and   a conductive liquid contained in the communication pipe and the first and the second hollow spheres,   wherein the first hollow sphere is arranged outside the container, and the second hollow sphere is arranged inside the container; when the internal temperature is greater than the external temperature, a level of the conductive liquid in the first hollow sphere is raised to such a level that the first and second resistors are conducted through the conductive liquid, and when the internal temperature is less than the external temperature, a level of the conductive liquid in the second hollow sphere is raised to such a level that the first and second electrodes are conducted through the conductive liquid.   
     
     
         7 . The temperature control system of  claim 6 , wherein the first and second resistors are rheostats.