Fan Guard for Electric Fan with Cooling Assembly

Abstract

The present invention relates to a fan guard for an electric fan. The fan guard includes a base guard including a plurality of guard supports; and a cooling assembly configured on the base guard and including: a cool transfer module having a cool transfer disk and a cool transfer body secured on the guard supports; a heat transfer module having a first end and a second end; a heat sink module having a matrix of fin plates; a thermoelectric cooler chip being in an annular shape and having a cooler hot side coupled with the first end and a cooler cool side coupled with the cool transfer disk; and a thermoelectric generator chip being in a rectangular shape and having a generator hot side coupled with the second end and a generator cool side coupled with the heat sink module.

What is claimed is: 
     
         1 . A fan guard for an electric fan, comprising:
 a base guard comprising a plurality of guard supports; and   a cooling assembly configured on the base guard and comprising:
 a cool transfer module having a cool transfer disk and a cool transfer body secured on the guard supports; 
 a heat transfer module having a first end and a second end; 
 a heat sink module having a matrix of fin plates; 
 a thermoelectric cooler chip being in an annular shape and having a cooler hot side coupled with the first end and a cooler cool side coupled with the cool transfer disk; and 
 a thermoelectric generator chip being in a rectangular shape and having a generator hot side coupled with the second end and a generator cool side coupled with the heat sink module. 
   
     
     
         2 . The fan guard as claimed in  claim 1  further comprising:
 a control module electrically connected with the thermoelectric cooler chip and the thermoelectric generator chip; 
 a display panel electrically connected with the control module and showing information to a user; 
 a heat dissipating fan electrically connected with the control module and optionally configured in proximity to the heat sink module; 
 a battery module electrically connected with the control module and storing an electric power; and 
 an electric power plug electrically connected with the control module and used for inserting into a power socket to receive a power source as a fixed electric power and sending it to the control module. 
 
     
     
         3 . The fan guard as claimed in  claim 1 , wherein a cool thermal energy provided by the cooler cool side is transferred to the cool transfer body through the cool transfer module to cool down the cool transfer body, and a hot thermal energy provided by the cooler hot side is transferred to the generator hot side through the heat transfer module. 
     
     
         4 . The fan guard as claimed in  claim 2 , wherein the heat sink module is used for dissipating the hot thermal energy on the generator cool side so as to decrease a temperature thereon and to create a temperature difference between the generator hot side and the generator cool side. 
     
     
         5 . The fan guard as claimed in  claim 4 , wherein the thermoelectric generator chip generates a recycled electric power based on the temperature difference and sends it to the control module. 
     
     
         6 . The fan guard as claimed in  claim 5 , wherein the control module receives the fixed electric power and the recycled electric power as a power input, converts the fixed electric power into a direct current, and sends the power input to charge the battery module and to drive the display panel, the heat dissipating fan and the thermoelectric cooler chip. 
     
     
         7 . The fan guard as claimed in  claim 1 , wherein the electric fan comprises a back guard and a front guard and the electric fan is one selected from a panel fan, a standing fan, a pedestal fan, a cool fan, an air cool fan, an oscillating fan, a round fan, an air circulating fan, an air circulator, a circulator, a compact circulator, a panel circulator and a pedestal circulator. 
     
     
         8 . The fan guard as claimed in  claim 7 , wherein the base guard further comprises:
 a guard frame being in a ring shape;   the plurality of guard supports having two ends secured on the guard frame and the cool transfer disk respectively; and   a plurality of connections configured on the guard frame and connecting with the back guard on the electric fan.   
     
     
         9 . The fan guard as claimed in  claim 1 , wherein the cool transfer module, the heat transfer module and the heat sink module are made of a thermal conductive material with a thermal conductivity higher than 20 W/m-k. 
     
     
         10 . The fan guard as claimed in  claim 9 , wherein the thermal conductive material is one selected from a group consisting of an alloy, a metal, an aluminum, a copper, a gold, a sliver and a combination thereof. 
     
     
         11 . The fan guard as claimed in  claim 1 , wherein the cool transfer body comprises a plurality of cool transfer supports separated from each other. 
     
     
         12 . The fan guard as claimed in  claim 11 , wherein each of the cool transfer supports is a prism having a cross section in one selected from following geometric profile shapes: an opened V shape, a closed triangular shape, a closed wedge shape, a closed diamond shape, a closed octagonal shape and a closed polygonal shape. 
     
     
         13 . The fan guard as claimed in  claim 11 , wherein each of the plurality of cool transfer supports has a cooling surface, each of the plurality of cool transfer supports and the cooling surface thereof is formed in one of a twisted shape, a spiral-like shape and a propeller-like shape. 
     
     
         14 . The fan guard as claimed in  claim 1 , wherein the cool transfer body is a structural continuum and is penetrated with a plurality of through holes to form with a mesh and the plurality of through holes is in hexagonal shape. 
     
     
         15 . The fan guard as claimed in  claim 14 , wherein each of the through holes have an upstream opening and a downstream opening and is formed into a micro airflow tube, the upstream opening has an upstream projection center projected onto a projection plane, and the downstream opening has a downstream projection center projected onto the projection plane. 
     
     
         16 . The fan guard as claimed in  claim 15 , wherein the upstream projection center and the downstream projection center projected onto the same projection plane for the same through hole located around the cool transfer disk are situated on the same point on the same projection plane. 
     
     
         17 . The fan guard as claimed in  claim 15 , wherein the downstream projection center projected onto the same projection plane for the same through hole located around the outer circumference on the cool transfer body is deviated from the upstream projection center projected onto the same projection plane for the same micro airflow tube and shifts toward the outer circumference. 
     
     
         18 . The fan guard as claimed in  claim 7  being applicable to behave as the front guard on the electric fan.