초록 ▼

A fan heater includes a heater body, an electric unit, a plurality of fan assemblies, and a heating element. Each of the fan assemblies is mounted with the adjacent fan assembly to form a fan unit within the receiving cavity, wherein the fan unit is operatively coupled with the electric unit for bei

A fan heater includes a heater body, an electric unit, a plurality of fan assemblies, and a heating element. Each of the fan assemblies is mounted with the adjacent fan assembly to form a fan unit within the receiving cavity, wherein the fan unit is operatively coupled with the electric unit for being driven to rotate by the electric unit. The heating element is mounted within the receiving cavity in a vicinity of the air outlet, and electrically connected with the electric unit for being heated up at an elevated temperature, wherein the fan assemblies are adapted to draw air flowing from an air inlet to an air outlet via the heating element, so as to heat up the air drawn by the fan unit, and deliver the heated air to a predetermined heating zone from the air outlet.

대표청구항 ▼

What is claimed is: 1. A fan arrangement for a fan heater which comprises a heater body having an air inlet, and air outlet, and a receiving cavity to communicate between said air inlet and said air outlet, an electric unit having a driving shaft disposed in said heater body within said receiving c

What is claimed is: 1. A fan arrangement for a fan heater which comprises a heater body having an air inlet, and air outlet, and a receiving cavity to communicate between said air inlet and said air outlet, an electric unit having a driving shaft disposed in said heater body within said receiving cavity for electrically connecting to a power source, and a heating element, wherein said fan arrangement comprises: a plurality of fan assemblies each of which comprises a plurality of heater fan blades each having a top edge portion and a bottom edge portion, wherein each of said fan assemblies is mounted with said adjacent fan assembly to form an integral fan unit within said receiving cavity, wherein said fan unit is operatively coupled with said electric unit for being driven to rotate by said electric unit, wherein when said electric unit is activated to drive said fan unit to rotate and heat up said heat element at said elevated temperature, said fan assemblies are adapted to draw air flowing from said air inlet to said air outlet via said heating element, so as to heat up said air drawn by said fan unit, and deliver said heated air to a predetermined heating zone from said air outlet; a top mounting member; a bottom mounting member, wherein each of said top mounting member and said bottom mounting member has a plurality of the mounting slots indently formed on an inner surface of said respective top mounting member and said bottom mounting member, wherein said mounting slots are aligned with said corresponding heater fan blades of said uppermost and said bottommost fan assemblies respectively so as to mount said corresponding heater fan blades with said top mounting member and said bottom mounting member to form said fan unit having an integral structure; and a plurality of connecting members spacedly supported between said top mounting member and said bottom mounting member, wherein said top edge portion and said bottom edge portion of each of said heater fan blades are mounted with two of said corresponding connecting members, said top mounting member and said bottom mounting member respectively so as to securely attach with said corresponding adjacent fan assembly via said corresponding connecting member, wherein said fan assemblies are spacedly and securely attached on said corresponding connecting members for forming said fan unit of said fan arrangement, wherein each of said connecting members also has a plurality of said mounting slots formed on a top and a bottom sides of said connecting member, wherein each of said heater fan blades are adapted to insert and mount into said corresponding mounting slot for securely attaching thereon, wherein said mounting slots on said top side of said connecting member are not aligned with said mounting slots on said bottom side of said connecting member so as to minimize a thickness of said connecting member and maximize a connection strength between said heater fan blades and said corresponding connecting members. 2. The fan arrangement, as recited in claim 1, further comprising a tubular supporting casing, having a supporting compartment and an air opening communicating said supporting compartment with said heater fan, integrally formed to enclosing said fan unit within said supporting compartment, wherein said tubular supporting casing further comprises a plurality of reinforcing ribs spacedly protruded from an outer surface of said supporting casing so as to enhance an ability to which said supporting casing is capable of resist impact and vibrations. 3. A fan arrangement for a fan heater which comprises a heater body having an air inlet, and air outlet, and a receiving cavity to communicate between said air inlet and said air outlet, an electric unit having a driving shaft disposed in said heater body within said receiving cavity for electrically connecting to a power source, and a heating element, wherein said fan arrangement comprises: a plurality of fan assemblies, each of comprises a plurality of elongated heater fan blades having a top edge portion and a bottom edge portion, is mounted with said adjacent fan assembly to form an integral fan unit within said receiving cavity, wherein said fan unit is operatively coupled with said electric unit for being driven to rotate by said electric unit, wherein when said electric unit is activated to drive said fan unit to rotate and heat up said heat element at said elevated temperature, said fan assemblies are adapted to draw air flowing from said air inlet to said air outlet via said heating element, so as to heat up said air drawn by said fan unit, and deliver said heated air to a predetermined heating zone from said air outlet; a top mounting member; a bottom mounting member, a plurality of connecting members spacedly supported between said top mounting member and said bottom mounting member, wherein said fan assemblies are spacedly and securely attached on said corresponding connecting members for forming said fan unit of said fan arrangement, wherein each of said top edge portion and said bottom edge portion of each of said elongated heater fan blades is mounted with two of said corresponding connecting members, said top mounting member and said bottom mounting member respectively so as to securely attach with said corresponding adjacent fan assembly via said corresponding connecting member; and a tubular supporting casing, having a supporting compartment and an air opening communicating said supporting compartment with said heater fan, integrally formed to enclosing said fan unit within said supporting compartment, wherein said tubular supporting casing further comprises a plurality of reinforcing ribs spacedly protruded from an outer surface of said supporting casing so as to enhance an ability to which said supporting casing is capable of resist impact and vibrations, wherein each of said heater fan blades is made of plastic materials so as to ensure that said weight of said entire fan heater is kept to minimal. 4. The fan arrangement, as recited in claim 2, wherein each of said heater fan blades is made of plastic materials so as to ensure that said weight of said entire fan heater is kept to minimal. 5. A fan arrangement for a fan heater which comprises a heater body having an air inlet, and air outlet, and a receiving cavity to communicate between said air inlet and said air outlet, an electric unit having a driving shaft disposed in said heater body within said receiving cavity for electrically connecting to a power source, and a heating element, wherein said fan arrangement comprises: a plurality of fan assemblies, each of comprises a plurality of elongated heater fan blades having a top edge portion and a bottom edge portion, is mounted with said adjacent fan assembly to form an integral fan unit within said receiving cavity, wherein said fan unit is operatively coupled with said electric unit for being driven to rotate by said electric unit, wherein when said electric unit is activated to drive said fan unit to rotate and heat up said heat element at said elevated temperature, said fan assemblies are adapted to draw air flowing from said air inlet to said air outlet via said heating element, so as to heat up said air drawn by said fan unit, and deliver said heated air to a predetermined heating zone from said air outlet; a top mounting member; a bottom mounting member, a plurality of connecting members spacedly supported between said top mounting member and said bottom mounting member, wherein said fan assemblies are spacedly and securely attached on said corresponding connecting members for forming said fan unit of said fan arrangement, wherein each of said top edge portion and said bottom edge portion of each of said elongated heater fan blades is mounted with two of said corresponding connecting members, said top mounting member and said bottom mounting member respectively so as to securely attach with said corresponding adjacent fan assembly via said corresponding connecting member; a tubular supporting casing, having a supporting compartment and an air opening communicating said supporting compartment with said heater fan, integrally formed to enclosing said fan unit within said supporting compartment, wherein said tubular supporting casing further comprises a plurality of reinforcing ribs spacedly protruded from an outer surface of said supporting casing so as to enhance an ability to which said supporting casing is capable of resist impact and vibrations; and a fan connector, which is made of plastic materials, mounting said electric unit with said fan unit, wherein said fan connector has a main connector body, a plurality of connecting legs extended from said connector body to connect with said bottom mounting member, and a connecting hole formed on said connecting body for said driving shaft of said electric unit passing therethrough so as to transmit said rotational power of said driving shaft to said fan unit. 6. The fan arrangement, as recited in claim 2, further comprising a fan connector, which is made of plastic materials, mounting said electric unit with said fan unit, wherein said fan connector has a main connector body, a plurality of connecting legs extended from said connector body to integrally connect with said bottom mounting member, and a connecting hole formed on said connecting body for said driving shaft of said electric unit passing therethrough so as to transmit said rotational power of said driving shaft to said fan unit. 7. A fan arrangement for a fan heater which comprises a heater body having an air inlet, and air outlet, and a receiving cavity to communicate between said air inlet and said air outlet, an electric unit having a driving shaft disposed in said heater body within said receiving cavity for electrically connecting to a power source, and a heating element, wherein said fan arrangement comprises: a plurality of fan assemblies, each of comprises a plurality of elongated heater fan blades having a top edge portion and a bottom edge portion, is mounted with said adjacent fan assembly to form an integral fan unit within said receiving cavity, wherein said fan unit is operatively coupled with said electric unit for being driven to rotate by said electric unit, wherein when said electric unit is activated to drive said fan unit to rotate and heat up said heat element at said elevated temperature, said fan assemblies are adapted to draw air flowing from said air inlet to said air outlet via said heating element, so as to heat up said air drawn by said fan unit, and deliver said heated air to a predetermined heating zone from said air outlet; a top mounting member; a bottom mounting member, a plurality of connecting members spacedly supported between said top mounting member and said bottom mounting member, wherein said fan assemblies are spacedly and securely attached on said corresponding connecting members for forming said fan unit of said fan arrangement, wherein each of said top edge portion and said bottom edge portion of each of said elongated heater fan blades is mounted with two of said corresponding connecting members, said top mounting member and said bottom mounting member respectively so as to securely attach with said corresponding adjacent fan assembly via said corresponding connecting member; a tubular supporting casing, having a supporting compartment and an air opening communicating said supporting compartment with said heater fan, integrally formed to enclosing said fan unit within said supporting compartment, wherein said tubular supporting casing further comprises a plurality of reinforcing ribs spacedly protruded from an outer surface of said supporting casing so as to enhance an ability to which said supporting casing is capable of resist impact and vibrations; and a fan connector, which is made of plastic materials, mounting said electric unit with said fan unit, wherein said fan connector has a main connector body, and a connecting hole formed thereon for securely connecting with said driving shaft of said electric unit, in such a manner that when said driving shaft is driven to rotate, said fan connector transmits said rotational power to rotate said fan unit. 8. The fan arrangement, as recited in claim 2, further comprising a fan connector, which is made of plastic materials, mounting said electric unit with said fan unit, wherein said fan connector has a main connector body, and a connecting hole formed thereon for securely connecting with said driving shaft of said electric unit, in such a manner that when said driving shaft is driven to rotate, said fan connector transmits said rotational power to rotate said fan unit. 9. The fan arrangement, as recited in claim 5, further comprising a bearing unit which comprises a bearing seat supported between a top ceiling of said supporting casing and said top mounting member, a shaft bearing having a through shaft supporting slot integrally mounted on said bearing seat, wherein said top mounting member of said fan arrangement further has a rotating shaft upwardly and integrally extended therefrom to insert into said shaft supporting slot for being rotatably supported by said bearing unit. 10. The fan arrangement, as recited in claim 6, further comprising a bearing unit which comprises a bearing seat supported between a top ceiling of said supporting casing and said top mounting member, a shaft bearing having a through shaft supporting slot integrally mounted on said bearing seat, wherein said top mounting member of said fan arrangement further has a rotating shaft upwardly and integrally extended therefrom to insert into said shaft supporting slot for being rotatably supported by said bearing unit. 11. The fan arrangement, as recited in claim 7, further comprising a bearing unit which comprises a bearing seat supported between a top ceiling of said supporting casing and said top mounting member, a shaft bearing having a through shaft supporting slot integrally mounted on said bearing seat, wherein said top mounting member of said fan arrangement further has a rotating shaft upwardly and integrally extended therefrom to insert into said shaft supporting slot for being rotatably supported by said bearing unit. 12. The fan arrangement, as recited in claim 8, further comprising a bearing unit which comprises a bearing seat supported between a top ceiling of said supporting casing and said top mounting member, a shaft bearing having a through shaft supporting slot integrally mounted on said bearing seat, wherein said top mounting member of said fan arrangement further has a rotating shaft upwardly and integrally extended therefrom to insert into said shaft supporting slot for being rotatably supported by said bearing unit. 13. The fan arrangement, as recited in claim 10, wherein each of said fan blades, having a predetermined blade contour, is spacedly mounted on said connecting members at a predetermined angle in such a manner that when said fan unit is driven to rotate, each of said fan blades is capable of drawing air to pass through said fan unit at a space between each two of said fan blades in a predetermined flow rate and direction, so as to draw air to be heated up by said fan heater. 14. The fan arrangement, as recited in claim 11, wherein each of said fan blades, having a predetermined blade contour, is spacedly mounted on said connecting members at a predetermined angle in such a manner that when said fan unit is driven to rotate, each of said fan blades is capable of drawing air to pass through said fan unit at a space between each two of said fan blades in a predetermined flow rate and direction, so as to draw air to be heated up by said fan heater. 15. The fan arrangement, as recited in claim 12, wherein each of said fan blades, having a predetermined blade contour, is spacedly mounted on said connecting members at a predetermined angle in such a manner that when said fan unit is driven to rotate, each of said fan blades is capable of drawing air to pass through said fan unit at a space between each two of said fan blades in a predetermined flow rate and direction, so as to draw air to be heated up by said fan heater.