Heatsinks and thermal architecture of an image capture device
An image capture device including: heat generating devices, one or more batteries, and a sensor heat spreader. The heat generating devices generate a thermal load. The sensor heat spreader is in thermal communication with one or more of the heat generating devices and extends from the one or more of the heat generating devices to the one or more batteries so that all or a portion of the thermal load is transferred to the one or more batteries.
1 . An image capture device comprising:
a rear side;
a front side located opposite the rear side;
a heat generating device that generates a thermal load, wherein the heat generating device is located adjacent to the rear side;
a battery;
a battery heat spreader in communication with the battery; and
a sensor heat spreader in thermal communication with the heat generating device and extending from the heat generating device to the battery heat spreader.
2 . The image capture device of claim 1 , further comprising:
a front heat spreader comprising:
a front thermal contact surface located adjacent to the front side, and
a rear thermal contact surface in contact with the heat generating device,
wherein the front thermal contact surface extends parallel to the rear thermal contact surface.
3 . The image capture device of claim 2 , wherein a transfer surface is located between and connects the front thermal contact surface and the rear thermal contact surface.
4 . The image capture device of claim 2 , further comprising:
a front heatsink located at the front side of the image capture device, wherein a front thermal contact surface of the front heat spreader is connected to the front heatsink.
5 . The image capture device of claim 4 , wherein the front thermal contact surface includes one or more cutouts that are an absence of material.
6 . The image capture device of claim 1 , further comprising:
a thermal interface material (TIM) connected to the sensor heat spreader, the heat generating device, or both to assist in transferring thermal energy from the heat generating device to the sensor heat spreader.
7 . The image capture device of claim 1 , wherein the battery heat spreader wraps the battery.
8 . An image capture device comprising:
a front side;
a rear side located opposite the front side;
heat generating devices that generate a thermal load, wherein at least one of the heat generating devices is located adjacent to the rear side;
a battery;
a battery heat spreader in communication with the battery; and
a sensor heat spreader comprising:
a primary contact surface in communication with an image sensor of the heat generating devices, and
a primary battery contact surface extending from the primary contact surface, the primary battery contact surface being in contact with the battery heat spreader so that thermal energy is transferred between image sensor and the battery.
9 . The image capture device of claim 8 , further comprising:
a rear heatsink forming a rear of the image capture device.
10 . The image capture device of claim 9 , further comprising:
a front heatsink located adjacent the front side and being in thermal communication with a front heat spreader.
11 . The image capture device of claim 10 , wherein a rear thermal contact surface of the front heat spreader is substantially a same size as the at least one of the heat generating devices.
12 . The image capture device of claim 10 , wherein the front heat spreader is generally U shaped.
13 . The image capture device of claim 12 , further comprising:
a transfer surface connecting the rear thermal contact surface to the front thermal contact surface.
14 . The image capture device of claim 13 , wherein the battery extends adjacent to the transfer surface.
15 . The image capture device of claim 8 , wherein the sensor heat spreader is flexible and bends around internal components to assist in transferring the thermal energy to the battery.
16 . An image capture device comprising:
a front heatsink having a front mass;
a rear heatsink located on an opposite side of the image capture device as the front heatsink, the rear heatsink having a rear mass;
heat generating devices located between the front heatsink and the rear heatsink, wherein the heat generating devices generate a thermal load and the thermal load is transferred to the front heatsink, the rear heatsink, or both;
a front heat spreader in communication with one of the heat generating devices located adjacent to the rear heatsink and extending into contact with the front heatsink so that thermal energy from the one of the heat generating devices is transferred to the front heatsink;
a battery;
a battery heat spreader in communication with the battery to assist in transferring thermal energy within the image capture device; and
a sensor heat spreader in thermal communication with one of the heat generating devices and that extends from the one of the heat generating devices to the battery.
17 . The image capture device of claim 16 , wherein the rear mass is triple the front mass.
18 . The image capture device of claim 16 , wherein the front heat spreader has a transfer surface that extends between the front heatsink and the rear heatsink.
19 . The image capture device of claim 18 , wherein the rear heatsink is in direct communication with one or more of the heat generating devices.
20 . The image capture device of claim 16 , wherein the sensor heat spreader and the battery heat spreader are made of a same material.