| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide television camera equipment for efficiently discharging heat generated in the electronic circuit device of a circuit board to the outside of a case body by radiation by fan convection and radiation by heat conduction, and thereby for suppressing the rise of temperature inside the case body. <P>SOLUTION: Radiator plates 2b, 3b are formed by using excellently heat-conductive and thin copper with a thickness of about 0.5 mm. Thin heat-conductive sheets 2c, 3c are attached onto the electronic circuit devices 2a, 3a in order to reduce a contact resistance between the radiator plates 2b, 3b and the electronic circuit devices 2a, 3a, and also pressure sponge pieces 2d, 3d are put between the radiator plates 2b, 3b and the circuit boards 3, 4. Thus, adhesiveness is improved by using the spring property of the thin radiator plates 2b, 3b. Besides, the radiator plates 2b, 3b are made thinner, and then radiation is promoted by reducing the resistance of an air flow to an intake port from the bottom and side surface lower parts of the case body 50. <P>COPYRIGHT: (C)2011,JPO&INPIT |
