Thermally efficient bus housing
An orbital satellite has a bus formed of a bus module and a payload module. Both the bus module and the payload modules may include a pair of panels integrally formed at an angle of for example 90° with respect to each other. Components and electronics supporting the satellite systems may be mounted on the panels of the bus and payload modules. Heat generated by the components and electronics are conducted between panels of the bus module and/or payload module. Sufficient heat transfer between panels occurs as a result of their being integrally formed with each other.
1. A bus for a satellite, comprising:
a bus module, and
a payload module, at least one of the bus module and the payload module comprising first and second panels integrally formed with each other at a non-straight angle to each other, the bus module and payload module configured to mate with each other to form sides of the bus, one or more of the first and second panels comprising structure, components or electronics generating heat, the integral formation of the first and second panels facilitating heat conduction between the first and second panels;
a fillet formed at an interface where the first and second panels come together, the fillet increasing a thickness at the interface to increase the area available to conduct heat between the first and second panels; and
first and second side closeout panels which together with the bus module and payload module form an outer housing of the bus.
2. The bus of claim 1 , wherein one of the bus module and the payload module comprise the first and second integrally formed panels and the other of the bus module and the payload module comprise third and fourth panels integrally formed with each other at a non-straight angle to each other, the integral formation of the third and fourth panels facilitating heat conduction between the third and fourth panels.
3. The bus of claim 1 , wherein the first and second panels are at 90° to each other.
4. The bus of claim 1 , further comprising side sections on either side of the second panel to which the first and second side closeout panels are affixed.
5. The bus of claim 1 , wherein the first and second panels are formed by casting or additive manufacturing.
6. The bus of claim 1 , wherein the first and second panels conduct sufficient heat to enable the structure, components or electronics to operate within specifications without the need for heat pipes affixed between the first and second panels.
7. A bus for a satellite, comprising:
a bus module comprising first and second panels integrally formed with each other at a non-straight angle to each other;
a payload module comprising third and fourth panels integrally formed with each other at a non-straight angle to each other, the bus module and payload module configured to mate with each other to form sides of the bus, one or more of the first, second, third and fourth panels comprising structure, components or electronics generating heat, the integral formation of the first and second panels facilitating heat conduction between the first and second panels, and the integral formation of the third and fourth panels facilitating heat conduction between the third and fourth panels;
a first fillet formed at a first interface where the first and second panels come together, the first fillet increasing a thickness of the bus module at the first interface to increase an area of the bus module available to conduct heat between the first and second panels; and
a second fillet formed at a second interface where the third and fourth panels come together, the second fillet increasing a thickness of the payload module at the second interface to increase an area of the payload module available to conduct heat between the third and fourth panels.
8. The bus of claim 7 , further comprising first and second side closeout panels which together with the bus module and payload module form a cubic housing for the bus.
9. The bus of claim 8 , further comprising first and second side sections on either side of the first panel to which the first and second side closeout panels are affixed.
10. The bus of claim 9 , further comprising third and fourth side sections on either side of the third panel to which the first and second side closeout panels are affixed.
11. The bus of claim 7 , wherein the first and second panels are formed by casting or additive manufacturing.
12. The bus of claim 7 , wherein the first and second panels conduct sufficient heat to enable the structure, components or electronics to operate within specifications without the need for heat pipes affixed between the first and second panels.