초록 ▼

A sensing device for use in a control for an alarm indicating an undesirable operating temperature condition within a refrigeration apparatus cabinet. The sensing device is mounted to have at least one surface thereof in thermal association with a liner portion of the refrigeration apparatus cabinet

A sensing device for use in a control for an alarm indicating an undesirable operating temperature condition within a refrigeration apparatus cabinet. The sensing device is mounted to have at least one surface thereof in thermal association with a liner portion of the refrigeration apparatus cabinet defining a refrigeration chamber therein. The sensing device is further responsive to the temperature of the refrigerated air within the chamber. The sensing device incorporates a time delay in responding to temperature changes within the refrigerated chamber to avoid false operation of the alarm. The device may be mounted in an insulating housing to provide a further time delay in the air temperature sensing functioning thereof.

대표청구항 ▼

In a refrigeration apparatus having an insulated cabinet provided with an inner liner, refrigeration means for refrigerating the air within said cabinet, and alarm means for indicating an undesirable operating temperature within said cabinet, improved sensing means for controlling operation of said

In a refrigeration apparatus having an insulated cabinet provided with an inner liner, refrigeration means for refrigerating the air within said cabinet, and alarm means for indicating an undesirable operating temperature within said cabinet, improved sensing means for controlling operation of said alarm means comprising: temperature sensing means electrically connected to said alarm means; encapsulation means encasing said temperature sensing means and effecting a predetermined time delay in the thermal response of said sensing means; and mounting means for mounting said encased temperature sensing means to dispose said sensing means in a first heat transfer relationship with said liner at a location whereat the liner temperature represents substantially an average of the temperature conditions within said cabinet, and in a second heat transfer relationship with said refrigerated air within said cabinet, said encapsulating means and mounting means being cooperatively associated to cause said first heat transfer relationship to provide greater heat transfer to said temperature sensing means than said second heat transfer relationship and effecting a second time delay in the thermal response of said sensing means.