Microwave oven and method of manufacturing the same

A microwave oven, comprising a machine room which includes:

• a plurality of devices installed in the machine room;
• a cooling fan assembly which comprises:
• a cooling fan which cools the machine room,
• a noise filter which is mounted to the cooling fan and removes high-frequency noise from electricity supplied to the microwave oven, and
• a first contact unit including first electrical wires having:
• a first transceiving terminal provided at a first end of each of the first electrical wires, and connected to a part of the devices including the cooling fan and the noise filter;
• and
• a first contact terminal which binds second ends of the first electrical wires into a single body;
• and
• a body latch assembly which comprises:
• a body latch which selectively engages with a door hinged to a front of a cooking cavity of the microwave oven so as to close/open the door,
• at least one safety switch which is installed to body latch and prevents a leakage of high-frequency electromagnetic waves from the cooking cavity in response to the door being opened, and
• a second contact unit including second electrical wires having:
• a second transceiving terminal provided at a first end of each of the
• second electrical wires, and connected to another part of the devices including the safety switch;
• and
• a second contact terminal which binds second ends of the second electrical wires into a single body, and connected to the first contact terminal.

A method of manufacturing a microwave oven having a machine room which includes a plurality of devices, the method comprising:

• producing a first contact unit being provided at a first end thereof with a first transceiving terminal for transceiving electricity and signals to or from a part of the devices installed in the machine room, and at a second end thereof with a first contact terminal;
• producing a second contact unit being provided at a first end thereof with a second transceiving terminal for transceiving electricity and signals to or from another part of the devices, and at a second end thereof with a second contact terminal for being electrically connected to the first contact terminal;
• connecting the first contact unit to any one of the part of the devices to form a first assembly;
• connecting the second contact unit to any one of the another part of the devices to form a second assembly;
• installing the first assembly in the machine room;
• installing the second assembly in the machine room;
• and
• connecting the first contact terminal and the second contact terminal to each other.

A microwave oven comprising a machine room which includes:

• a plurality of devices installed in the machine room;
• a first contact unit connected at a first end thereof to a part of the devices;
• and
• a second contact unit connected at a first end thereof to another part of the devices, and connected at a second end thereof to a second end of the first contact unit, wherein the devices include:
• a cooling fan which cools the machine room;
• a magnetron which generates high-frequency electromagnetic waves to cook food;
• a high-tension transformer which applies a high voltage to the magnetron;
• a noise filter which removes high-frequency components from electricity supplied to the microwave oven;
• a printed circuit board which outputs control signals to perform a cooking operation of the microwave oven;
• a body latch which selectively engages with a door hinged to a front of a cooking cavity of the microwave oven so as to close/open the door;
• at least one safety switch which is installed on the body latch, and prevents a leakage of the high-frequency electromagnetic waves from the cooking cavity in response to the door being opened;
• a drive motor which rotates a cooking tray installed in the cooking cavity;
• a temperature sensor which senses a temperature in the cooking cavity;
• and
• a lamp which illuminates an interior of the cooking cavity.

A microwave oven comprising a machine room which includes:

• a plurality of devices installed in the machine room;
• a first contact unit connected at a first end thereof to a part of the devices;
• and
• a second contact unit connected at a first end thereof to another part of the devices, and connected at a second end thereof to a second end of the first contact unit, wherein the second end of the second contact unit and the second end of the first contact unit are separated and connected to each other through a fitting-type engagement.