초록 ▼

The present invention relates to a heat dissipation structure for a notebook type computer, capable of effectively dissipating heat generated from a high temperature element (such as a CPU). The heat dissipation structure comprises a main body, a display device and a hinge shaft for coupling the mai

The present invention relates to a heat dissipation structure for a notebook type computer, capable of effectively dissipating heat generated from a high temperature element (such as a CPU). The heat dissipation structure comprises a main body, a display device and a hinge shaft for coupling the main body with the display device, wherein the hinge shaft is arranged above the main body at a distance therefrom, and a heat dissipation means is provided in the main body.

대표청구항 ▼

The present invention relates to a heat dissipation structure for a notebook type computer, capable of effectively dissipating heat generated from a high temperature element (such as a CPU). The heat dissipation structure comprises a main body, a display device and a hinge shaft for coupling the mai

The present invention relates to a heat dissipation structure for a notebook type computer, capable of effectively dissipating heat generated from a high temperature element (such as a CPU). The heat dissipation structure comprises a main body, a display device and a hinge shaft for coupling the main body with the display device, wherein the hinge shaft is arranged above the main body at a distance therefrom, and a heat dissipation means is provided in the main body. tact being electrically connected to each other in the operating position, wherein the safety relays are connected to each other at their base contacts and the safety power line is connected to the operating contacts; (b) a first shunt line electrically connecting the safety power line upstream of the first safety relay with the connecting line between the safety relays when said first shunt line is in an uninterrupted state; (c) a second shunt line electrically connecting the safety power line downstream of the second safety relay with the connecting line between the safety relays when said second shunt line is in an uninterrupted state; (d) a plurality of test switching elements provided in the shunt lines, said test switching elements breaking the shunt lines outside of preset test times; and (e) a controlling device to be connected to the sensor and the safety relays, said controlling device switching said safety relays in dependence on a signal of the sensor so that the safety power line is interrupted when a limit value of the operating parameter is reached, said controlling device comprising test means testing the switching capability of the safety relays at preset test times by closing the shunt line associated with the safety relay to be tested by the test switching elements, reversing the safety relay to be tested to the idle position, monitoring the electrical voltage of the idle contact of the tested safety relay and issuing an error signal if voltage is missing on the idle contact of the tested safety relay. 2. The controller according to claim 1, wherein: (a) first and second test switching elements are connected in series; (b) the shunt lines have a common line part and the first test switching element is connected to the connecting line of the safety relays via the common line part; and (c) the second test switching element comprises a change-over switching device and selectively makes a connection between the first test switching element and the first shunt line leading to upstream of the first safety relay, or between the first test switching element and the second shunt line leading to downstream of the second safety relay. 3. The controller according to claim 2, wherein: (a) the test switching elements comprise first and second test relays designed as change-over switching devices having an idle position and an operating position; and (b) each test relay comprises an idle contact, an operating contact and a base contact, said base contact and said idle contact being electrically connected to each other in the idle position, said base contact and said operating contact being electrically connected to each other in the operating position, wherein the operating contact of the first test relay is connected to the base contact of the second test relay. 4. The controller according to claim 3, wherein: (a) the shunt lines have common line parts and the first test relay is connected with its base contact and its operating contact to the common line parts; and (b) during the test of the safety relays, the controlling device first reverses the first test relay from the idle position to the operating position and monitors the electrical voltage on its idle contact and issues an error signal if voltage is present. 5. The controller according to claim 4, wherein upon completion of the test, the controlling device reverses the first test relay from the operating position to the idle position; monitors the electrical voltage on the idle contact of the first test relay and issues an error signal if voltage is missing. 6. The controller according to claim 3, wherein the idle contact of the second test relay is connected to the first shunt line leading to upstream of the first safety relay and its operating contact is connected to the second shunt line leading to downstream of the second safety relay, the base contact of said second test relay being connected to the first test relay. 7. The controlle