Cooking appliance

1. A cooking appliance comprising:

a case;

a cooktop at an upper part of the case, comprising a top plate on which a cooking object or a container to accommodate the cooking object can be seated, and a first heating source;

a cavity in the case, comprising a cooking chamber for cooking foods;

a second heating source to provide heat to the cavity;

a control panel to adjust operation of the second heating source for cooking the foods in the cavity;

a steam generator to receive heat from the first heating source and to generate steam; and

a steam flow part in the control panel and having one end connected to the steam generator and another end connected to the cooking chamber to guide steam generated from the steam generator to the cooking chamber,

wherein if the cooking object or the container is seated on the top plate, the first heating source provides heat to the cooking object or the container, and

wherein if the steam generator is seated on the top plate, the first heating source provides heat to the steam generator.

2. The cooking appliance according to claim 1 , wherein the steam generator is detachable from the steam flow part.

3. The cooking appliance according to claim 1 , wherein the steam generator comprises an exhaust hole through which the steam generated by the steam generator is exhausted, and

wherein the exhaust hole selectively communicates with the steam flow part.

4. The cooking appliance according to claim 3 , wherein the steam generator further comprises:

a steam container including the exhaust hole in a side thereof; and

a joint tube having one end that extends from the exhaust hole and another end that is selectively connected to the steam flow part, wherein the joint tube includes a flow path through which the steam flows therein.

5. The cooking appliance according to claim 4 , wherein the steam container further includes a water inlet.

6. The cooking appliance according to claim 4 , wherein the steam generator further comprises a handle connected to the steam container.

7. The cooking appliance according to claim 4 , wherein the steam flow part comprises:

a docking part selectively connected to the exhaust hole; and

a connection tube having one end connected to the docking part and another end connected to the cooking chamber.

8. The cooking appliance according to claim 7 , wherein the docking part comprises:

a first member having an insertion hole through which the joint tube is fixed; and

a second member to guide the steam from the first member to the connection tube.

9. The cooking appliance according to claim 8 , wherein the docking part further comprises a blocking member to selectively block the insertion hole, and

wherein the blocking member opens the insertion hole when the joint tube is fixed in the insertion hole.

10. The cooking appliance according to claim 9 , further comprising a temperature sensor on one of the first and the second members to measure a temperature of the steam.

11. The cooking appliance according to claim 8 , further comprising a guide part on the cooktop or the steam flow part to locate the steam container on the cooktop so that the exhaust hole is connected to the docking part.

12. A cooking appliance comprising:

a cooktop comprising a first heating source and a top plate on which a cooking object or a container to accommodate the cooking object can be seated;

an oven under the cooktop, comprising a cooking chamber for cooking foods and a second heating source;

a control panel to control operation of the oven;

a steam generator that can be seated on the cooktop to receive heat from the first heating source, thereby generating steam; and

a steam flow part on the control panel to guide steam generated from the steam generator to the cooking chamber,

wherein if the cooking object or the container is seated on the top plate the first heating source provides heat to the cooking object or the container, and

wherein if the steam generator is seated on the top plate, the first heating source provides heat to the steam generator.

13. The cooking appliance according to claim 12 , wherein the steam generator comprises a joint tube connected to the steam flow part, and

wherein a portion of the steam generator vertically overlaps the heating source.

14. The cooking appliance according to claim 13 , wherein the steam flow part comprises a docking part to which the joint tube is connected, and

wherein the joint tube is aligned with the docking part.

15. The cooking appliance according to claim 14 , wherein the joint tube is fixed into the docking part by a sliding movement of the steam generator.

16. The cooking appliance according to claim 14 , wherein the docking part comprises:

an insertion hole to which the joint tube is fixed; and

a blocking member to block the insertion hole when the joint tube is separated from the docking part.

17. The cooking appliance according to claim 12 , wherein the steam flow part comprises a docking part to which the steam generator is connected,

wherein the control panel comprises a recessed part, and

wherein the docking part is in the recessed part.

18. The cooking appliance according to claim 12 ,

wherein a pattern for representing a position at which the steam generator is located is on the top plate.