Burner fire cap for gas cooktop and burner using the same
A burner fire cap for a gas cooktop includes a substantially annular cover body. A plane is configured on the cover body. At least two bosses protruding from the plane are distributed in a peripheral direction of the fire cap on the plane. Fire holes are disposed on the bosses. In the burner fire cap for a gas cooktop, at least two bosses are disposed and the fire holes are disposed on the bosses. As compared with a burner fire cap for a gas cooktop in the prior art, the distribution of the fire holes on the fire cap is changed, thereby enhancing the uniformity for heating a bottom of a utensil by using a burner having the fire cap.
1. A burner fire cap for a gas cooktop, comprising:
a substantially annular cover body having a center point, wherein a plane is configured on the cover body; and
at least two bosses protruding from the plane are distributed on the plane in a peripheral direction of the fire cap, each of the bosses having
a first side surface extending along an outer periphery of the boss;
a second side surface having a first end and a second end, the first end being located on a first concentric circle centered on the center point of the cover body, the second end being located on a second concentric circle centered on the center point of the cover body, the first and second concentric circles having different radii, and the second surface extending along a path that is not parallel to a radial line passing through the center point of the cover body;
a third side surface having a first end and a second end, the first end being located substantially on the first concentric circle, and the second end being located substantially on the outer periphery of the boss;
a first set of fire holes disposed on the first side surface;
a second set of fire holes disposed on the second side surface; and
a third set of fire holes disposed on the third side surface.
2. The burner fire cap of claim 1 , wherein recesses having the same number and substantially corresponding shape as the bosses are disposed on a rear side of the cover body.
3. The burner fire cap of claim 1 , wherein the bosses are evenly distributed on the plane.
4. The burner fire cap of claim 1 , wherein the third side surface inclines for approximately an angle δ relative to the plane, and 100°≦δ≦150°.
5. The burner fire cap of claim 4 , wherein 120°≦δ≦125°.
6. The burner fire cap of claim 1 , wherein the first side surface inclines for approximately an angle θ relative to the plane, and 45°≦θ≦90°.
7. The burner fire cap of claim 6 , wherein θ=70.
8. The burner fire cap of claim 1 , wherein the second side surface inclines for approximately an angle γ relative to the plane, and 120°≦γ≦150°.
9. The burner fire cap of claim 8 , wherein γ=135°.
10. The burner fire cap of claim 1 , wherein top surfaces of the bosses are located in the same horizontal plane.
11. The burner fire cap of claim 1 , wherein the number of the bosses is two to eight, and the bosses are evenly distributed on the plane.
12. The burner fire cap of claim 11 , wherein the number of the bosses is three or four, and the bosses are evenly distributed on the plane.
13. The burner fire cap of claim 1 , wherein an auxiliary air supply channel is formed between adjacent bosses.
14. The burner fire cap of claim 1 , wherein a thickness of the fire cap is between 12 cm and 15 cm.
15. The burner fire cap of claim 14 , wherein the thickness of the fire cap is between 14 cm and 15 cm.
16. The burner fire cap of claim 1 , wherein the third side surface extends along a path that is not parallel to a radial line passing through the center point of the cover body.
17. A gas cooktop burner, comprising:
a gas mixing chamber member having a gas cavity; and
a fire cap in fluid communication with the gas cavity, the fire cap having
a substantially annular cover body having a center point, wherein a plane is configured on the cover body; and
at least two bosses protruding from the plane are distributed on the plane in a peripheral direction of the fire ca each of the bosses having
a first side surface extending along an outer periphery of the boss;
a second side surface having a first end and a second end, the first end being located on a first concentric circle centered on the center point of the cover body, the second end being located on a second concentric circle centered on the center point of the cover body, the first and second concentric circles having different radii, and the second surface extending along a path that is not parallel to a radial line passing through the center point of the cover body;
a third side surface having a first end and a second end, the first end being located substantially on the first concentric circle, and the second end being located substantially on the outer periphery of the boss;
a first set of fire holes disposed on the first side surface;
a second set of fire holes disposed on the second side surface; and
a third set of fire holes disposed on the third side surface.
18. The gas cooktop burner of claim 17 , wherein the third side surface extends along a path that is not parallel to a radial line passing through the center point of the cover body.