Heat exchanger backing plate and method of assembling same
View Patent ↗A backing plate for joining a heat removal device to a heat source. The backing plate can include a planar plate region having a first face and a second face opposite the first face. The backing plate can also include at least one boss projecting from the first face and having an opening therein for receiving a fastener.
1. A backing plate for joining a heat removal device to a heat source, the backing plate comprising:
a planar plate region having a first face and a second face opposite the first face; and
at least one boss projecting from the first face, the boss having an opening therein for receiving a fastener, wherein the at least one boss extends into the heat removal device, the fastener extends through the heat source, and the heat removal device is disposed between the heat source and the backing plate.
2. The backing plate of claim 1 , further comprising a fin attached to the second face.
3. The backing plate of claim 1 , further comprising an opening in the planar region.
4. The backing plate of claim 1 , wherein the fastener is a screw.
5. The backing plate of claim 1 further comprising a plurality of bosses each shaped to releasably engage with a fastener extending from the heat removal device.
6. The backing plate of claim 1 , wherein the backing plate is sized to fit within a recess defined in a surface of the heat removal device.
7. The backing plate of claim 1 , wherein the fastener is attached to the at least one boss to secure the backing plate to the heat removal device.
8. The backing plate of claim 1 , wherein the heat removal device is clamped between the fastener and the backing plate.
9. The backing plate of claim 8 , wherein the heat source is also clamped between the fastener and the backing plate.
10. The backing plate of claim 1 , wherein the heat removal device is fixed between the heat source and the backing plate.
11. A backing plate for joining a heat removal device to a heat source with a fastener, the heat removal device having a first side and a second side, the backing plate comprising:
a base having a first surface facing the first side of the heat removal device when secured thereto, and a second surface facing away from the heat removal device when secured thereto; and
a boss extending along a longitudinal axis away from the base and at least partially through the heat removal device towards the second side of the heat removal device when the base is secured to the heat removal device, the boss shaped to releasably engage with the fastener from the second side of the heat removal device to clamp the heat removal device between the base of the backing plate and the fastener, wherein the fastener extends through the heat source,
wherein the base extends beyond a cross-sectional area of the boss taken in a plane orthogonal to the longitudinal axis of the boss to distribute axial force from the boss across the first side of the heat removal device when secured thereto, and wherein the heat removal device is disposed between the heat source and the backing plate.
12. The backing plate of claim 11 , wherein the fastener is a screw.
13. The backing plate of claim 11 , wherein the boss is one of a plurality of bosses each extending along a respective axis away from the base and toward the heat removal device when secured thereto, each of the plurality of bosses shaped to releasably engage with a respective fastener from the second side of the heat removal device.
14. The backing plate of claim 13 , wherein an aperture is defined through the backing plate between at least two of the bosses.
15. The backing plate of claim 11 , wherein the heat removal device is fixed between the heat source and the backing plate.
16. An electronic device, comprising:
an electrical heat source;
a heat removal device having a first side and a second side opposite the first side;
a backing plate on the first side of the heat removal device and having a boss extending at least partially through the heat removal device from the first side towards the second side; and
a fastener extending through the heat source and at least partially through the heat removal device from the second side of the heat removal device and secured to the boss,
wherein the heat removal device is clamped between the fastener and the backing plate.
17. The electronic device of claim 16 , wherein the electrical heat source is also clamped between the fastener and the backing plate.
18. The electronic device of claim 16 , wherein:
the backing plate further comprises a plate from which the boss extends; and
the plate is recessed within the heat removal device.
19. The electronic device of claim 16 , further comprising a heat dissipating device secured to the backing plate, wherein the backing plate is located between the heat dissipating device and the heat removal device.
20. A system for joining a heat removal device to a heat source, the system comprising:
a heat removal device having a first side and a second side and at least one aperture extending between the first side and the second side of the heat removal device, wherein the second side of the heat removal device is adjacent the heat source; and
a backing plate disposed adjacent the first side of the heat removal device, the backing plate including at least one boss sized to fit within the at least one aperture, wherein the boss extends at least partially through the heat removal device and is adapted to receive a fastener to couple the backing plate to the heat source, wherein the fastener extends through the heat source.
21. The system of claim 20 , further comprising a recess defined in the first side, wherein the backing plate is sized to fit within the recess.
22. The system of claim 20 , wherein the fastener is attached to the boss to secure the backing plate to the heat source.
23. The system of claim 20 , wherein the heat removal device is clamped between the fastener and the backing plate.
24. The backing plate of claim 23 , wherein the heat removal device is clamped between the fastener and the backing plate.