Good Day All!
Hopefully, I put this question in the proper section of the forum. Pardon me & feel free to move it if I goofed.
I have a 120 volt AC input power supply unit (PSU) which will provide 12 VDC outputrated for a maximum of 36 watts. The actual load will be 24 watts. The device to be powered is a strip of LEDs that come in a spool.
The 2 solid sides of the case are aluminum. The perforated faces are steel.
When I ask my question below, I mention 'Side 1' 'Side 2", etc. There is a photo with the sides named. Hopefully it will remove some confusion of what I'm trying to explain.
The PSU will be mounted to the vertical face of a floor joist in the basement. The joist will remain open to the floor. (No ceiling). At the top of the joist is the sub floor above. There will be spacers behind the PSU to leave a gap between it and the joist face.
Inside, there are two components mounted to heat sinks in a fashion I've never seen before. The components are vertical. There is one aluminum bar crossing the front of both. There is a screw that enters the bar between the components and clamps the components to the case wall (Called 'Side 1' in the photos. It's the face with the label.)
My question is: What is the best orientation for this unit for optimum convection cooling? There will be no fan forced cooling.
I studied around and learned that having the circuit board flat (parallel to the floor) is not a good idea, so I won't mount it upside down on the bottom of the sub floor. (Unless you all tell me that's the best plan.)
Referring to the photos, my guess is that I should mount this with Side 3 facing up. (Second to last photo) Air will (??) enter side 2 and exit Side 3.
Next guess was Side 1 faces up (last photo). Air enters Side 3 (facing the ground) and exits the large face of side 2. But will heat get trapped against Side 1, the one acting like a heatsink?
Thanks Very Much For Your Suggestions!
I appreciate your advice.
Paul
Paul
Hopefully, I put this question in the proper section of the forum. Pardon me & feel free to move it if I goofed.
I have a 120 volt AC input power supply unit (PSU) which will provide 12 VDC outputrated for a maximum of 36 watts. The actual load will be 24 watts. The device to be powered is a strip of LEDs that come in a spool.
The 2 solid sides of the case are aluminum. The perforated faces are steel.
When I ask my question below, I mention 'Side 1' 'Side 2", etc. There is a photo with the sides named. Hopefully it will remove some confusion of what I'm trying to explain.
The PSU will be mounted to the vertical face of a floor joist in the basement. The joist will remain open to the floor. (No ceiling). At the top of the joist is the sub floor above. There will be spacers behind the PSU to leave a gap between it and the joist face.
Inside, there are two components mounted to heat sinks in a fashion I've never seen before. The components are vertical. There is one aluminum bar crossing the front of both. There is a screw that enters the bar between the components and clamps the components to the case wall (Called 'Side 1' in the photos. It's the face with the label.)
My question is: What is the best orientation for this unit for optimum convection cooling? There will be no fan forced cooling.
I studied around and learned that having the circuit board flat (parallel to the floor) is not a good idea, so I won't mount it upside down on the bottom of the sub floor. (Unless you all tell me that's the best plan.)
Referring to the photos, my guess is that I should mount this with Side 3 facing up. (Second to last photo) Air will (??) enter side 2 and exit Side 3.
Next guess was Side 1 faces up (last photo). Air enters Side 3 (facing the ground) and exits the large face of side 2. But will heat get trapped against Side 1, the one acting like a heatsink?
Thanks Very Much For Your Suggestions!
I appreciate your advice.
Paul
Paul