LED lamp, oven, and microwave oven

An oven, comprising a box and an LED lamp, wherein the LED lamp is partially embedded in the box;

• the LED lamp comprising:
• a heat sink;
• a light-emitting module positioned on the heat sink, the light-emitting module comprising an LED unit positioned on the heat sink, a reflection cup, and a first diffuser covering the reflection cup, the reflection cup encircling the LED unit and defining at least one first ventilation hole;
• a heat-conducting support positioned on the heat sink and encircling the reflection cup, the heat-conducting support defining at least one second ventilation hole;
• and
• a second diffuser secured to and clamped by the heat-conducting support;
• the first ventilation hole and the second ventilation hole connected, such that heat in a chamber formed by the reflection cup and the first diffuser is dissipated to air outside the LED lamp via the first ventilation hole and the second ventilation hole;
• wherein the reflection cup is trumpet-shaped and comprises a small opening end and a large opening end which are disposed oppositely, and the first ventilation hole is located between a wall of the reflection cup and the small opening end;
• wherein the heat-conducting support protrudes outwards to form at least two ear parts, and the at least two ear parts are connected to the heat sink;
• the LED lamp comprises a thermal insulation element positioned on the heat sink, and the heat-conducting support is connected to the thermal insulation element, threaded fasteners run through the ear parts and the thermal insulation element sequentially to fix the heat-conducting support on the heat sink.

A microwave oven, comprising a box and an LED lamp, wherein the LED lamp is partially embedded in the box;

• the LED lamp comprising:
• a heat sink;
• a light-emitting module positioned on the heat sink, the light-emitting module comprising an LED unit positioned on the heat sink, a reflection cup, and a first diffuser covering the reflection cup, the reflection cup encircling the LED unit and defining at least one first ventilation hole;
• a heat-conducting support positioned on the heat sink and encircling the reflection cup, the heat-conducting support defining at least one second ventilation hole;
• and
• a second diffuser secured to and clamped by the heat-conducting support;
• the first ventilation hole and the second ventilation hole connected, such that heat in a chamber formed by the reflection cup and the first diffuser is dissipated to air outside the LED lamp via the first ventilation hole and the second ventilation hole;
• wherein the heat-conducting support protrudes outwards to form at least two ear parts, and the at least two ear parts are connected to the heat sink;
• the LED lamp comprises a thermal insulation element positioned on the heat sink, and the heat-conducting support is connected to the thermal insulation element, threaded fasteners run through the ear parts and the thermal insulation element sequentially to fix the heat-conducting support on the heat sink.