Cooling structure for power supply device
First Claim
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1. A power supply device comprising:
- a housing including first and second side walls facing each other, said first sidewall having spaced air inlet and outlet ports formed therein, said second side wall having two spaced openings formed therein;
a cooling structure comprising;
partition means extending between said first and second side walls for dividing said housing into first and second chambers, said partition means extending from a location between said air inlet and outlet ports in said first side wall to a location between said two openings in said second side wall;
a third side wall forming a third chamber with said second side wall, said third chamber placing said two openings in fluid communication with each other so that an air flow passage is formed by said first, second and third chambers; and
ventilation fan means disposed in said air flow passage for causing air to flow through said air flow passage from said inlet port to said air outlet port; and
a first group of electrical components which do not generate a substantial amount of heat in operation and a second group of electrical components which do generate a substantial amount of heat in operation, said first group of components being disposed in one of said first and second chambers, said second group of components being disposed in the other of said first and second chambers.
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Abstract
A power supply device includes power semiconductor devices generating Joule'"'"'s heat by themselves and circuit components generating no considerable heat by themselves but, as a group, generate a slight rise in temperature, which are included in a power supply circuit of the device. A structure is arranged to forcibly cool these semiconductor devices and circuit components by partitioning the interior of a housing of the Dower supply device to form a passage for an air flow, providing the housing with inlet and outlet openings for the air flow and providing the passage with a ventilating fan.
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Citations
6 Claims
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1. A power supply device comprising:
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a housing including first and second side walls facing each other, said first sidewall having spaced air inlet and outlet ports formed therein, said second side wall having two spaced openings formed therein; a cooling structure comprising; partition means extending between said first and second side walls for dividing said housing into first and second chambers, said partition means extending from a location between said air inlet and outlet ports in said first side wall to a location between said two openings in said second side wall; a third side wall forming a third chamber with said second side wall, said third chamber placing said two openings in fluid communication with each other so that an air flow passage is formed by said first, second and third chambers; and ventilation fan means disposed in said air flow passage for causing air to flow through said air flow passage from said inlet port to said air outlet port; and a first group of electrical components which do not generate a substantial amount of heat in operation and a second group of electrical components which do generate a substantial amount of heat in operation, said first group of components being disposed in one of said first and second chambers, said second group of components being disposed in the other of said first and second chambers. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification