Dryer with cooled motor
View Patent ↗The invention relates to a dryer with a housing and a drying chamber for objects to be dried, a process air duct, in which are located a heater for warming the process air and a first fan, a motor for driving the drying chamber, a heat exchanger and a cold air section in the process air duct or in a cooling air duct, with a motor cooling duct which branches off from the cold air section being able to apply cold air to the motor.
1. A dryer, comprising:
a drying chamber for objects to be dried;
an inlet air entry;
a first air duct in communication with the inlet air entry, the first air duct being provided with a motor, a first fan at a first side of the motor, and a cold air section which provides a first flow of air by which the objects in the drying chamber are dried and also provides a second flow of air by which the motor is cooled.
2. The dryer of claim 1 , further comprising a second duct in communication with the first duct, the second air duct being provided with a second fan at a second, opposite side of the motor.
3. The dryer of claim 2 , wherein the second flow of air flows through the second duct.
4. A dryer, comprising:
a housing;
a drying chamber for objects to be dried;
a process air duct in which are located a heater for warming up the process air, a first fan, a motor for driving the drying chamber, a heat exchanger, and a cold air section, a motor cooling duct that branches off from the cold air section through which a first flow of cold air is able to be applied to the motor, and a second fan in the motor cooling duct,
wherein the cold air section provides a second flow of cold air which is processed by the heater to dry the objects in the drying chamber.
5. The dryer of claim 4 , wherein the cold air section is in the process air duct.
6. The dryer of claim 4 , wherein the cold air section is located in the cooling air duct.
7. The dryer of claim 4 , wherein the first flow of cold air comprises up to 30% of the overall air flow in the cold air section.
8. The dryer of claim 1 , wherein the first fan and the second fan form a double-flow fan.
9. The dryer of claim 1 , further comprising a third fan in the cooling air duct.
10. A dryer, comprising:
a process air duct through which a flow of air flows;
a motor;
a heater provided in the process air duct;
a drying chamber for objects to be dried;
a first fan provided in the process air duct;
a motor cooling duct which directs cool air to the motor;
a second fan provided in the motor cooling duct; and
a cold air section provided in the process air duct, the cold air section providing a first flow of air which is processed by the heater to dry the objects in the drying chamber and a predetermined amount of a second flow of air which is processed by the second fan to cool the motor.
11. The dryer of claim 10 , wherein the predetermined amount comprises up to 30% of the overall air flow in the cold air section.
12. The dryer of claim 10 , wherein the predetermined amount comprises up to 20% of the overall air flow in the cold air section.
13. The dryer of claim 10 , wherein the motor drives the drying chamber, the first fan and the second fan.
14. The dryer of claim 10 , further comprising a heat exchanger which cools down the flow of air from the drying chamber.