Gas fireplace and flow guide member of the same

Abstract

A gas fireplace includes a firebox, a translucent cover provided on the firebox, and a separate assembly. The separate assembly is provided in the firebox, and divides the firebox into an air chamber and a combustion chamber which corresponds to the translucent cover. An exhaust passage is formed between the separate assembly and the translucent cover, and communicates the air chamber and the combustion chamber, wherein an inner width of the exhaust passage gradually reduces from the air chamber toward the combustion chamber. During the combustion, the exhaust passage guides cold air to flow through the semi-enclosed air chamber, and to evenly blow into the translucent cover, which forms an even air curtain on a surface of a bottom portion of the translucent cover to block out the heat. Whereby, the temperature of the translucent cover and the bottom portion of the combustion chamber could be lowered.

What is claimed is: 
     
         1 . A gas fireplace, comprising:
 a firebox comprising an intake port, an exhaust port, and a window, wherein the window is located between the intake port and the exhaust port;   a translucent cover covering the window; and   a separate assembly provided in the firebox, wherein the separate assembly divides the firebox into an air chamber and a combustion chamber; the air chamber communicates with the intake port, while the combustion chamber corresponds to the translucent cover, and communicates with the exhaust port;   wherein, an end of the separate assembly is connected to the firebox, while another end thereof extends toward the translucent cover, and is bent into a flow guide segment; an exhaust passage is formed between the flow guide segment and the translucent cover, wherein the exhaust passage communicates the air chamber and the combustion chamber, and an inner width of the exhaust passage gradually reduces from the air chamber toward the combustion chamber.   
     
     
         2 . The gas fireplace of  claim 1 , wherein the separate assembly comprises a board member and a flow guide member; the board member is connected to the firebox and the flow guide member; an end of the flow guide member is detachably connected to the board member, while another end thereof is bent to be the flow guide segment. 
     
     
         3 . The gas fireplace of  claim 2 , wherein the flow guide member comprises a top board and a bottom board; the top board is provided above the bottom board, and an airflow passage is formed between the top board and the bottom board to communicate with the exhaust passage; the top board comprises the flow guide segment and an extension segment, wherein the extension segment is connected to the board member and the flow guide segment; an air inlet of the airflow passage is formed between the extension segment and the bottom board, wherein the air inlet communicates with the air chamber. 
     
     
         4 . The gas fireplace of  claim 3 , wherein the flow guide member further comprises a plurality of stop plates, which are provided between the top board and the bottom board, and are separately arranged on the bottom board to divide the airflow passage into multiple sub-passages. 
     
     
         5 . The gas fireplace of  claim 4 , wherein an end of each of the stop plates opposite to the top board has an inclined edge, which is inclined from the bottom board toward the top board; the flow guide segment of the top board abuts against the inclined edges. 
     
     
         6 . The gas fireplace of  claim 3 , wherein an end of the bottom board corresponding to the flow guide segment is bent toward the top board to form a vertical segment, and the exhaust passage is formed between the vertical segment and the flow guide segment. 
     
     
         7 . The gas fireplace of  claim 1 , further comprising two steady flow plates, wherein the separate assembly is provided with a gas supply port thereon; the steady flow plates are provided on opposite ends of the gas supply port; an end of each of the steady flow plates extends into the combustion chamber; one of the steady flow plates is located between the exhaust passage and the gas supply port. 
     
     
         8 . The gas fireplace of  claim 7 , further comprising a combustion device provided in the air chamber, wherein the combustion device corresponds to the gas supply port; the combustion device comprises:
 a combustion supporting module connected to the board member, wherein the combustion supporting module has at least one gas supply passage, which communicates the gas supply port and the air chamber; and   a combustor comprising a tube and two protruding plates, wherein the tube has a plurality of fuel orifices arranged thereon; the fuel orifices correspond to the gas supply port; the protruding plates are provided on opposite ends of the fuel orifices, and are between the steady flow plates; an end of each of the protruding plates extends into the combustion supporting module; a burner port formed between the protruding plates, wherein the burner port communicate the gas supply port and the fuel orifices.   
     
     
         9 . The gas fireplace of  claim 8 , wherein the combustor further comprises a sleeve fitting around the tube; the sleeve has a slot corresponding to the fuel orifices of the tube, wherein the slot extends in an arranging direction of the fuel orifices; the protruding plates are respectively connected to one of opposite sides of the sleeve adjacent to the slot. 
     
     
         10 . The gas fireplace of  claim 8 , wherein the combustion supporting module comprises a base and a plurality of separators; the base is connected to the board member; the gas supply passage is located between the base and the board member; the separators are separately arranged on a lateral surface of the base opposite to the board member, and divide the gas supply passage into multiple guide passages. 
     
     
         11 . The gas fireplace of  claim 10 , wherein the base comprises a seat body and a frame body; the frame body is provided on the seat body; the frame body has an assembling opening and a plurality of cuts, wherein the assembling opening corresponds to the gas supply port of the board member, the cuts are separately arranged on two opposite lateral edges of the frame body adjacent to the assembling opening; the separators are provided in the assembling opening, and a lateral edge of each of the separators is inserted into one of the cuts, while another lateral edge thereof is fixed to the seat body. 
     
     
         12 . The gas fireplace of  claim 10 , wherein the separators are respectively arranged on a side of one of the protruding plates of the combustor away from the burner port; each of the separators has a notch provided thereon; the steady flow plates are respectively engaged with the notches of the corresponding separators on two opposite sides of the burner port. 
     
     
         13 . The gas fireplace of  claim 12 , wherein the combustion supporting module further comprises two bent plates, which are respectively provided on the opposite sides of the burner port; an end of each of the bent plates is located between one of the protruding plates and the separators corresponding to said protruding plate, while another end of each of the bent plates is bent toward the corresponding separators, and has a plurality of perforations provided thereon, wherein the perforations respectively correspond to the guide passages. 
     
     
         14 . The gas fireplace of  claim 13 , wherein the perforations is lower than the burner port in a vertical direction. 
     
     
         15 . The gas fireplace of  claim 1 , further comprising an exhaust device provided in the combustion chamber, wherein the exhaust device divides the combustion chamber into a first space and a second space; the exhaust device has an exhaust passage communicating the first space and the second space, wherein a width of the exhaust passage gradually reduces from the second space toward the first space. 
     
     
         16 . The gas fireplace of  claim 15 , wherein the exhaust device comprises a first guide plate and a second guide plate; an end of the first guide plate and an end of the second guide plate are respectively connected to two opposite walls of the combustion chamber, while another ends thereof are inclined to each other toward the exhaust port, with a certain distance left therebetween, forming the exhaust passage between the first guide plate and the second guide plate. 
     
     
         17 . The gas fireplace of  claim 16 , wherein an end of the first guide plate inclined toward the exhaust port has a first top edge, and an end of the second guide plate inclined toward the exhaust port has a second top edge; the first top edge is higher than the second top edge in a vertical direction; an exit of the exhaust passage is formed between the first top edge and the second top edge. 
     
     
         18 . The gas fireplace of  claim 17 , wherein the exhaust device further comprises two splitter plates, which are connected to the first top edge in an axial direction of the exhaust port, and abut against the second top edge; the splitter plates are separately arranged to divide the exit into multiple sub-exits. 
     
     
         19 . The gas fireplace of  claim 18 , wherein the exhaust device further comprises a spoiler, which is provided between the splitter plates, and is connected to the second top edge in the axial direction of the exhaust port to partially cover the sub-exit between the splitter plates. 
     
     
         20 . A flow guide member, which is adapted to be provided on a side of a gas fireplace adjacent to a translucent cover; comprising:
 a bottom board; and   a top board provided above the bottom board, wherein an airflow passage is formed between the top board and the bottom board; the top board comprises a flow guide segment and an extension segment, wherein an air inlet of the airflow passage is formed between an end of the extension segment, which is away from the flow guide segment, and the bottom board; the flow guide segment is connected to the extension segment in an inclined way, and is in a horizontal direction of the bottom board; the flow guide segment is separated from the bottom board by a distance;   wherein, when the flow guide member is provided in the gas fireplace, an end of the bottom board corresponding to the flow guide segment abuts against the translucent cover, and an exhaust passage is formed by the distance between the flow guide segment and the translucent cover; the exhaust passage communicates with the airflow passage, and an inner width of the exhaust passage gradually reduces from the bottom board toward the top board.   
     
     
         21 . The flow guide member of  claim 20 , further comprising a plurality of stop plates, wherein the stop plates are provided between the top board and the bottom board, and are separately arranged on the bottom board to divide the airflow passage into multiple sub-passages. 
     
     
         22 . The flow guide member of  claim 21 , wherein an end of each of the stop plates opposite to the top board has an inclined edge, which is inclined from the bottom board toward the top board; the flow guide segment of the top board abuts against the inclined edges. 
     
     
         23 . The flow guide member of  claim 20 , wherein an end of the bottom board corresponding to the flow guide segment is bent toward the top board to form a vertical segment, and the exhaust passage is formed between the vertical segment and the flow guide segment.