Heat dissipation device of display apparatus and method for dissipating heat of display apparatus, and display device

A display device, comprising:

• a heat dissipation device;
• and
• a display apparatus using the heat dissipation device to dissipate heat,
• wherein the heat dissipation device comprises:
• a front cover assembly comprising a front cover, wherein the front cover is provided with a receiving groove and a heat dissipation control switch, wherein the receiving groove is configured to receive the display apparatus, and the receiving groove is provided with first sliding grooves respectively on both sides of the receiving groove;
• a support assembly comprising a support base, wherein the support base is slidably mounted in the first sliding grooves and is located at a side of the heat dissipation control switch facing away from a bottom of the front cover;
• and
• a rear cover assembly comprising a rear cover and a heat dissipation component, wherein the rear cover is provided with an air inlet and an air outlet,
• wherein when the display apparatus is inserted into the receiving groove, the support base slides under weight of the display apparatus in such a manner that the heat dissipation control switch is pressed to control the heat dissipation component to dissipate heat.

A method for dissipating heat of a display apparatus, comprising:

• using a heat dissipation device to dissipate heat for the display apparatus,
• wherein the heat dissipation device comprises:
• a front cover assembly comprising a front cover, wherein the front cover is provided with a receiving groove and a heat dissipation control switch, wherein the receiving groove is configured to receive the display apparatus, and the receiving groove is provided with first sliding grooves respectively on both sides of the receiving groove;
• a support assembly comprising a support base, wherein the support base is slidably mounted in the first sliding grooves and is located at a side of the heat dissipation control switch facing away from a bottom of the front cover;
• and
• a rear cover assembly comprising a rear cover and a heat dissipation component, wherein the rear cover is provided with an air inlet and an air outlet,
• wherein when the display apparatus is inserted into the receiving groove, the support base slides under weight of the display apparatus in such a manner that the heat dissipation control switch is pressed to control the heat dissipation component to dissipate heat;
• and
• wherein said using the heat dissipation device to dissipate heat for the display apparatus comprises:
• when the display apparatus is inserted into the receiving groove, the support base sliding under weight of the display apparatus in such a manner that the heat dissipation control switch is pressed to control the heat dissipation component to dissipate heat;
• and
• when the display apparatus is pulled out of the receiving groove, contact between the support base and the heat dissipation control switch being disconnected in such a manner that the heat dissipation control switch is turned off to control the heat dissipation component to stop dissipating heat.