Patent Publication Number: US-8529099-B2

Title: Heat dissipating lamp device having electric turbine axial fan

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application is a Continuation-In-Part of application Ser. No. 13/233,113, filed on Sep. 15, 2011, now abandoned which is a Continuation-In-Part of application Ser. No. 13/217,358, filed on Aug. 25, 2011 now abandoned. 
    
    
     BACKGROUND OF THE INVENTION 
     (a) Field of the Invention 
     A conventional turbine axial fan thermally actuated or driven by wind power is equipped with a sealed top portion having plural axial exhaust blades arranged at intervals and stacked with equal inclined angles annularly installed at its periphery, the center thereof is downwardly extended with an axial airflow inlet port; when in operation, the plural exhaust blades provide a turbine axial airflow exhausting function, and the axial airflow inlet port introduces airflow during the rotation operation then the introduced airflow is exhausted to the surroundings; at present, a high power lamp set often adopts a heat dissipation housing made of a heat conductive material having a sealed top portion for preventing rainwater from entering; the present invention provides a turbine axial fan driven by an electric motor and installed on the top portion of a heat dissipation lamp housing, so when the electric turbine axial fan is operated, the airflow is concentrated from the outside of top portion of lamp housing, which is relatively hotter, of the sealed heat dissipation lamp housing towards the center, and leaded to upwardly enter an axial airflow inlet port formed at the bottom of the electric turbine axial fan, thereby being exhausted to the surroundings through the radially-arranged exhaust blades, thus when the present invention being applied in a high power lamp, e.g. a high power LED lamp set, a cooling effect by external cooling airflow can be provided to the top portion, which is relatively hotter, of the LED lamp housing; when external wind power drives the turbine axial fan, the loading of electric motor can be lowered so as to reduce the electric power outputted by the electric motor. 
     (b) Description of the Prior Art 
     The cooling for a conventional LED lamp housing includes natural air cooling or fan cooling, wherein the rainproof effect for the fan cooling is relatively harder to establish, it is yet to be seen a lamp housing having its top portion installed with a rainproof electric turbine axial fan structure in the market place. 
     SUMMARY OF THE INVENTION 
     The present invention provides an electric turbine axial fan, which is rainproof and installed at the top portion of sealed heat dissipation lamp housing of a high power lamp, so when the electric turbine axial fan is operated, the airflow passes through the top portion of lamp housing, which is relatively hotter, of the sealed heat dissipation lamp housing and is concentrated towards the center, then leaded to upwardly enter an axial airflow inlet port formed at the bottom of the electric turbine axial fan, thereby being exhausted to the surroundings through radially-arranged exhaust blades, thus when the present invention being applied in a high power lamp, a cooling effect by the external cooling airflow can be provided to the top portion, which is relatively hotter; when external wind power drives the turbine axial fan, the loading of electric motor can be lowered so as to reduce the electric power outputted by the electric motor. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic structural view showing the lamp structure, according to the present invention. 
         FIG. 2  is a top view of  FIG. 1 . 
         FIG. 3  is a schematic structural view showing a heat dissipation structure ( 1020 ) being installed, and an annular arc-shaped airflow guide hole ( 1030 ) being provided for guiding cold/hot airflow, according to the present invention. 
         FIG. 4  is a cross sectional view of  FIG. 3  taken along an A-A line. 
         FIG. 5  is a schematic structural view showing a heat dissipation structure ( 1020 ) being installed, and a recessed hole ( 1010 ) having a notch ( 1040 ) at top center and an annular arc-shaped airflow guide hole ( 1030 ) being provided for guiding cold/hot airflow, according to the present invention. 
         FIG. 6  is a cross sectional view of  FIG. 5  taken along a B-B line. 
         FIG. 7  is a schematic structural view showing the heat dissipation structure ( 1020 ) being installed, and the annular arc-shaped airflow guide hole ( 1030 ) and a columnar body ( 1050 ) having inward-recessed top center being provided for guiding cold/hot airflow. 
         FIG. 8  is a cross sectional view of  FIG. 7  taken along a C-C line. 
         FIG. 9  is a schematic structural view showing the lamp housing ( 101 ) being combined with an external support arm ( 10 ), according to one embodiment of the present invention. 
         FIG. 10  is a cross sectional view of  FIG. 9  taken along a D-D line. 
         FIG. 11  is a schematic structural view showing the lamp housing ( 101 ) being combined with an external support rod ( 20 ), according to one embodiment of the present invention. 
         FIG. 12  is a cross sectional view of  FIG. 11  taken along an E-E line. 
         FIG. 13  is a schematic structural view showing the lamp housing ( 101 ) being combined with an external partition structure ( 30 ), according to one embodiment of the present invention. 
         FIG. 14  is a schematic structural view illustrating being combined with a suspension device ( 40 ), according to one embodiment of the present invention. 
     
    
    
     DESCRIPTION OF MAIN COMPONENT SYMBOLS 
     
         
         
           
               10 : Support arm 
               20 : Support rod 
               30 : Partition structure 
               40 : Suspension device 
               101 : Lamp housing 
               1000 : Top cover 
               1010 : Recessed hole 
               102 ′ 1020 : Heat dissipation structure 
               103 : Annular arc-shape airflow guide surface 
               1030 : Annular arc-shaped airflow guide hole 
               104 : Top portion of heat dissipation structure 
               1040 : Notch 
               1050 : Columnar body 
               200 : electric turbine axial fan 
               202 : Electric motor 
               204 : Heat insulation member 
               206 : Rotation shaft 
               207 : Radially-arranged exhaust blade 
               208 : Axial fluid inlet port 
               209 : Sealed top cover 
               301 : Top portion covering net 
               302 : Light-pervious lampshade 
               303 : Secondary optical device 
               304 : Electric driven light emitting lamp set 
               305 : Temperature switch 
           
         
       
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The cooling for a conventional LED lamp housing includes natural air cooling or fan cooling, wherein the rainproof effect for the fan cooling is relatively harder to establish, it is yet to be seen a lamp housing having its top portion installed with a rainproof electric turbine axial fan structure in the market place. 
     A conventional turbine axial fan thermally actuated or driven by wind power is equipped with a sealed top portion having plural axial exhaust blades arranged at intervals and stacked with equal inclined angles annularly installed at its periphery, the center thereof is downwardly extended with an axial airflow inlet port; when in operation, the plural exhaust blades provide a turbine axial airflow exhausting function, and the axial airflow inlet port introduces airflow during the rotation operation then the introduced airflow is exhausted to the surroundings; at present, a high power lamp set often adopts a heat dissipation housing made of a heat conductive material having a sealed top portion for preventing rainwater from entering; the present invention provides a turbine axial fan driven by an electric motor and installed on the top portion of a heat dissipation lamp housing, so when the electric turbine axial fan is operated, the airflow is concentrated from the outside of top portion of lamp housing, which is relatively hotter, of the sealed heat dissipation lamp housing towards the center, and leaded to upwardly enter an axial airflow inlet port formed at the bottom of the electric turbine axial fan, thereby being exhausted to the surroundings through the radially-arranged exhaust blades, thus when the present invention being applied in a high power lamp, e.g. a high power LED lamp set, a cooling effect by external cooling airflow can be provided to the top portion, which is relatively hotter, of the LED lamp housing; when external wind power drives the turbine axial fan, the loading of electric motor can be lowered so as to reduce the electric power outputted by the electric motor. 
       FIG. 1  is a schematic structural view showing the lamp structure, according to the present invention, and  FIG. 2  is a top view of  FIG. 1 , which mainly consists of:
         Lamp housing ( 101 ), heat dissipation structure ( 102 ): the lamp housing ( 101 ) is constituted by a bowl-shaped structure reversely disposed, and configured by a heat conductive member or non-heat conductive member, the top center thereof and the heat dissipation structure ( 102 ) formed in round shape or conical shape and having vertical radial blades are integrally formed or assembled with each other, the bottom of the heat dissipation structure ( 102 ) allows a LED or other lamps to be installed, and the lamp housing ( 101 ) is formed with an annular arc-shape airflow guide surface ( 103 ) along the periphery of the heat dissipation structure ( 102 );   Electric turbine axial fan ( 200 ): constituted by a turbine driven by a built-in electric motor ( 202 ) and having radially-arranged exhaust blades ( 207 ), the bottom of the static part of electric motor is installed on the top portion ( 104 ) of heat dissipation structure ( 102 ) and spaced by a heat insulation member ( 204 ), a rotation shaft ( 206 ) of the rotary part of electric motor is upwardly extended for serving as a core shaft for driving the turbine having the radially-arranged exhaust blades ( 207 ), the bottom of the electric turbine axial fan ( 200 ) is formed with an axial fluid inlet port ( 208 ) for introducing the fluid passing the annular arc-shaped airflow guide surface ( 103 ) of the lamp housing ( 101 ) to pass through the periphery of the top of heat dissipation structure ( 102 ), then be exhausted to the surroundings through the radially-arranged exhaust blades ( 207 ), and the top of electric turbine axial fan ( 200 ) is provided with a sealed top cover ( 209 ) for providing protection to the electric motor ( 202 );       

       FIG. 3  is a schematic structural view showing the heat dissipation structure ( 1020 ) being installed, and the annular arc-shaped airflow guide hole ( 1030 ) being provided for guiding the cold/hot airflow, according to the present invention, and  FIG. 4  is a cross sectional view of  FIG. 3  taken along an A-A line, which mainly consists of:
         Lamp housing ( 101 ), heat dissipation structure ( 1020 ); the lamp housing ( 101 ) is constituted by a bowl-shaped structure reversely disposed, and configured by a heat conductive member or non-heat conductive member, the heat dissipation structure ( 1020 ) is configured by a high-performance heat conductive member, the top center thereof is formed in round or conical shape or other geometric shapes and having a downward-facing recessed hole ( 1010 ), and the periphery is installed with upward-facing radially-arranged vertical blades, for being combined with a top cover ( 1000 ) configured by a heat conductive member and having its exterior formed in a round, conical or other geometric shapes, so as to jointly constitute a heat dissipation structure with airflow guide hole and having the annular arc-shape airflow guide hole ( 1030 ), the heat dissipation structure ( 1020 ) and the lamp housing ( 101 ) are integrally formed or individually manufactured then assembled as one piece, the bottom of the heat dissipation structure ( 1020 ) allows a LED or other lamps to be installed, the top cover ( 1000 ) provides functions of guiding airflow, dissipating heat or being fastened to the exterior;   Electric turbine axial fan ( 200 ): constituted by a turbine driven by a built-in electric motor ( 202 ) and having radially-arranged exhaust blades ( 207 ), the bottom of the static part of electric motor is installed on the top portion ( 104 ) of heat dissipation structure ( 1020 ) and spaced by a heat insulation member ( 204 ), a rotation shaft ( 206 ) of the rotary part of electric motor is upwardly extended for serving as a core shaft for driving the turbine having the radially-arranged exhaust blades ( 207 ), so as to introduce the external airflow to pass through an axial fluid inlet port ( 208 ) of the annular arc-shape airflow guide hole ( 1030 ) of the heat dissipation structure ( 1020 ), then be exhausted to the surroundings through the radially-arranged exhaust blades ( 207 ), the top of electric turbine axial fan ( 200 ) is provided with a sealed top cover ( 209 ) for providing protection to the electric motor ( 202 );       

       FIG. 5  is a schematic structural view showing a first example wherein a heat dissipation structure ( 1020 ) being installed, and a recessed hole ( 1010 ) having a notch ( 1040 ) at top center and an annular arc-shaped airflow guide hole ( 1030 ) being provided for guiding the cold/hot airflow, according to the present invention, and  FIG. 6  is a cross sectional view of  FIG. 5  taken along a B-B line, which mainly consists of:
         Lamp housing ( 101 ), heat dissipation structure ( 1020 ): the lamp housing ( 101 ) is constituted by a bowl-shaped structure reversely disposed, and configured by a heat conductive member or non-heat conductive member, the heat dissipation structure ( 1020 ) is configured by a high-performance heat conductive member, the top center thereof is formed in round or conical shape or other geometric shapes and having a downward-facing recessed hole ( 1010 ) with its periphery formed with a notch ( 1040 ), the periphery is installed with upward-facing radially-arranged vertical blades, for being combined with a top cover ( 1000 ) configured by a heat conductive member and having its exterior formed in a round, conical or other geometric shapes, so as to jointly constitute a heat dissipation structure with airflow guide hole and having the annular arc-shape airflow guide hole ( 1030 ), the heat dissipation structure ( 1020 ) and the lamp housing ( 101 ) are integrally formed or individually manufactured then assembled as one piece, and the bottom of the heat dissipation structure ( 1020 ) allows a LED or other lamps to be installed, and the top cover ( 1000 ) provides functions of guiding airflow, dissipating heat or being fastened to the exterior;   Electric turbine axial fan ( 200 ): constituted by a turbine driven by a built-in electric motor ( 202 ) and having radially-arranged exhaust blades ( 207 ), the bottom of the static part of electric motor is installed on the top portion ( 104 ) of heat dissipation structure ( 1020 ) and spaced by a heat insulation member ( 204 ), a rotation shaft ( 206 ) of the rotary part of electric motor is upwardly extended for serving as a core shaft for driving the turbine having the radially-arranged exhaust blades ( 207 ), so as to introduce the external airflow to pass through the axial fluid inlet port ( 208 ) of the annular arc-shaped airflow guide hole ( 1030 ) of the heat dissipation structure ( 1020 ), then be exhausted to the surroundings through the radially-arranged exhaust blades ( 207 ), and the top of electric turbine axial fan ( 200 ) is provided with a sealed top cover ( 209 ) for providing protection to the electric motor ( 202 );       

       FIG. 7  is a schematic structural view showing the heat dissipation structure ( 1020 ) being installed, and the annular arc-shaped airflow guide hole ( 1030 ) and a columnar body ( 1050 ) having inward-recessed top center being provided for guiding the cold/hot airflow, and  FIG. 8  is a cross sectional view of  FIG. 7  taken along a C-C line, which mainly consists of:
         Lamp housing ( 101 ), heat dissipation structure ( 1020 ): the lamp housing ( 101 ) is constituted by a bowl-shaped structure reversely disposed, and configured by a heat conductive member or non-heat conductive member, the heat dissipation structure ( 1020 ) is configured by a high-performance heat conductive member, the top center thereof is formed in round or conical shape or other geometric shapes and having an inward-recessed columnar body ( 1050 ), the periphery is installed with upward-facing radially-arranged vertical blades, for being combined with a top cover ( 1000 ) configured by a heat conductive member and having its exterior formed in a round, conical or other geometric shapes, so as to jointly constitute a heat dissipation structure with airflow guide hole and having the annular arc-shape airflow guide hole ( 1030 ), the heat dissipation structure ( 1020 ) and the lamp housing ( 101 ) are integrally formed or individually manufactured then assembled as one piece, and the bottom of the heat dissipation structure ( 1020 ) allows a LED or other lamps to be installed, the top cover ( 1000 ) provides functions of guiding airflow, dissipating heat or being fastened to the exterior;   Electric turbine axial fan ( 200 ): constituted by a turbine driven by a built-in electric motor ( 202 ) and having radially-arranged exhaust blades ( 207 ), the bottom of the static part of electric motor is installed on the top portion ( 104 ) of heat dissipation structure ( 1020 ) and spaced by a heat insulation member ( 204 ), a rotation shaft ( 206 ) of the rotary part of electric motor is upwardly extended for serving as a core shaft for driving the turbine having the radially-arranged exhaust blades ( 207 ), so as to introduce the external airflow to pass through the axial fluid inlet port ( 208 ) of the annular arc-shaped airflow guide hole ( 1030 ) of the heat dissipation structure ( 1020 ), then be exhausted to the surroundings through the radially-arranged exhaust blades ( 207 ), and the top of electric turbine axial fan ( 200 ) is provided with a sealed top cover ( 209 ) for providing protection to the electric motor ( 202 );       

     The heat dissipating lamp device having electric axial turbine fan, disclosed from  FIG. 1  to  FIG. 8 , can be further installed with an electric-driven light emitting lamp set ( 304 ) at the bottom of the heat dissipation structure ( 102 ) or the heat dissipation structure ( 1020 ), wherein:
         Electric-driven light emitting lamp set ( 304 ): constituted by one or more than one of the following electric-driven light emitting lamps, including:       

     1) DC light emitting diode; 
     2) AC light emitted diode; 
     3) Gaseous lamp set; 
     4) Fluorescent lamp; 
     5) Lamp bulb; 
     The heat dissipating lamp device having electric axial turbine fan, disclosed from  FIG. 1  to  FIG. 8 , can be further installed with a secondary optical device ( 303 ) in the lamp housing ( 101 ), wherein:
         Secondary optical device ( 303 ): constituted by a structural body having light reflection function, and annularly installed at the top periphery of a light emitting lamp set ( 304 ), thereby equipped with functional operations of reflecting, refracting and condensing or diffusing the optical energy of the electric-driven light emitting lamp set ( 304 );       

     The heat dissipating lamp device having electric axial turbine fan, disclosed from  FIG. 1  to  FIG. 8 , can be further installed with a light-pervious lampshade ( 302 ) on the lamp housing ( 101 ), wherein:
         Light-pervious lampshade ( 302 ): constituted by a fixed structure and light-pervious glass for being combined at the lower end of the lamp housing ( 101 ) for protecting the electric-driven light emitting lamp set ( 304 ) without influencing the illumination performance thereof;       

     The heat dissipating lamp device having electric axial turbine fan, disclosed from  FIG. 1  to  FIG. 8 , can be further installed with a top portion covering net ( 301 ) at the outer periphery of the electric turbine axial fan ( 200 ), wherein:
         Top portion covering net ( 301 ): constituted by a net-shaped structure for covering and protecting the electric turbine axial fan ( 200 ) and secured on the lamp housing ( 101 );       

     The heat dissipating lamp device having electric axial turbine fan, disclosed from  FIG. 1  to  FIG. 8 , can be further installed with a temperature switch ( 305 ) on the heat dissipation structure ( 102 ) or the heat dissipation structure ( 1020 ), wherein:
         Temperature switch ( 305 ): constituted by an electromechanical joint switch configured by electrical mechanic or dual metal sheets or memory alloy, or constituted by a solid-state switch device driven by thermistor or thermocouple, wherein one or more than one temperature switches ( 305 ) are installed at locations close to the location where the electric-driven light emitting lamp set ( 304 ) being installed on the heat dissipation structure ( 102 ) or the heat dissipation structure ( 1020 ), so when the temperature generated by the electric-driven light emitting lamp set ( 304 ) transmitted to the temperature switch ( 305 ) installed on the heat dissipation structure ( 102 ) or the heat dissipation structure ( 1020 ) exceeds a preset temperature value, all or part of the controlled power source of the electric-driven light emitting lamp set ( 304 ) is cut off for preventing the electric-driven light emitting lamp set ( 304 ) from overheating.       

     In the heat dissipating lamp device having electric axial turbine fan disclosed from  FIG. 1  to  FIG. 8 , the lamp housing ( 101 ) is provided with a structure for being combined with an external support arm ( 10 ) for allowing the support arm ( 10 ) to be combined; 
       FIG. 9  is a schematic structural view showing the lamp housing ( 101 ) being combined with an external support arm ( 10 ), according to one embodiment of the present invention,  FIG. 10  is a cross sectional view of  FIG. 9  taken along a D-D line. 
     In the heat dissipating lamp device having electric axial turbine fan disclosed from  FIG. 1  to  FIG. 8 , the lamp housing ( 101 ) is provided with a structure for being combined with an external support rod ( 20 ) for allowing the support rod ( 20 ) to be combined; 
       FIG. 11  is a schematic structural view showing the lamp housing ( 101 ) being combined with an external support rod ( 20 ), according to one embodiment of the present invention,  FIG. 12  is a cross sectional view of  FIG. 11  taken along an E-E line. 
     In the heat dissipating lamp device having electric axial turbine fan disclosed from  FIG. 1  to  FIG. 8 , the top cover ( 1000 ) is provided with a partition structure ( 30 ) to be combined between the airflow passing the heat dissipation structure ( 102 ) or the heat dissipation structure ( 1020 ), and the airflow exhausted from the electric turbine axial fan ( 200 ); 
       FIG. 13  is a schematic structural view showing the lamp housing ( 101 ) being combined with an external partition structure ( 30 ), according to one embodiment of the present invention. 
     The heat dissipating lamp device having electric axial turbine fan, disclosed from  FIG. 1  to  FIG. 8 , can be combined with a suspension device ( 40 ) for providing a suspension installation; wherein the suspended location combined with the suspension device ( 40 ) includes the annular arc-shape airflow guide surface ( 103 ), the top cover ( 1000 ) or the structural body of heat dissipating lamp device; 
       FIG. 14  is a schematic structural view illustrating being combined with a suspension device ( 40 ), according to one embodiment of the present invention.