Closed type display apparatus and method of assembling the same

Patent metadata

Field	Value
Publication number	US-10271439-B2
Application number	US-201715646982-A
Country	US
Kind code	B2
Filing date	Jul 11, 2017
Priority date	Aug 5, 2016
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

The present disclosure relates to a closed type display apparatus. In an embodiment, the closed type display apparatus includes a front housing, a rear housing, and a closed space which is defined by the front housing and the rear housing and in which first and second circuit boards used in the display apparatus are disposed; wherein, a metal cover is formed as at least a portion of the rear housing, and a higher heating device of the first circuit board is disposed to be adjacent to the metal cover. The present disclosure also relates to a method of assembling a closed type display apparatus.

First claim

What is claimed is:

1. A closed type display apparatus, comprising:
a front housing;
a rear housing; and
a closed space which is defined by the front housing and the rear housing and in which first and second circuit boards used in the display apparatus are disposed;
wherein, the rear housing comprises a rear housing body and a metal cover, the metal cover is formed as at least a portion of the rear housing, a first heating device of the first circuit board is disposed to be adjacent to the metal cover, and a periphery of the metal cover is hermetically embedded in the rear housing body.

2. The closed type display apparatus of claim 1 , wherein, the metal cover is disposed at an outer side of the rear housing body, and, a radiating chamber in which the first heating device is disposed is defined by the metal cover and the rear housing body.

3. The closed type display apparatus of claim 2 , wherein, a second heating device and the second circuit board carried with the second heating device are disposed in a main chamber defined by the front housing and the rear housing body.

4. The closed type display apparatus of claim 2 , wherein, the rear housing body is made of a plastic material and/or the front housing is made of a plastic material.

5. The closed type display apparatus of claim 1 , further comprising a cooling fin disposed between the first heating device and the metal cover and configured to transfer heat from the first heating device to the metal cover.

6. The closed type display apparatus of claim 5 , wherein, the cooling fin extends along an inner side surface of the metal cover, a side of the cooling fin fits in with the inner side surface of the metal cover, and at least a portion of an opposing side of the cooling fin is against the first heating device to form a thermal contact.

7. The closed type display apparatus of claim 6 , wherein, a resilient thermal conductive element is disposed on at least one of the side or the opposing side of the cooling fin, and is configured to strengthen the thermal contact formed among the higher first heating device, the cooling fin and the metal cover.

8. The closed type display apparatus of claim 7 , wherein, a projection towards the first heating device is formed at a location of the cooling fin corresponding to the first heating device of the first circuit board.

9. The closed type display apparatus of claim 8 , wherein, a recess is formed at a location of the cooling fin corresponding to the projection but at the side of the cooling fin facing the metal cover, and the resilient thermal conductive element is embedded in the recess.

10. The closed type display apparatus of claim 9 , wherein, the resilient thermal conductive element comprises a thermal conductive silica gel pad.

11. The closed type display apparatus of claim 6 , wherein, the side of the cooling fin facing the metal cover is coated with a thermal conductive adhesive.

12. The closed type display apparatus of claim 6 , wherein, the cooling fin is made of a mixture of metal material and graphite.

13. The closed type display apparatus of claim 1 , wherein, a thermoelectric generator is disposed on an outer side surface of the metal cover.

14. A method of assembling a closed type display apparatus, the method comprising steps of:
a) providing a front housing and a rear housing body of the display apparatus;
b) disposing a first circuit board carried with a higher first heating device on an outer side of the rear housing body;
c) assembling a metal cover onto the outer side of the rear housing body by hermetically embedding a periphery of the metal cover into the rear housing body to form a rear housing so that the first circuit board carried with the higher first heating device is disposed in a radiating chamber defined by the rear housing body and the metal cover; and
d) assembling the front housing with the rear housing to form a closed space, so as to form the closed type display apparatus.

15. The method of claim 14 , wherein, a second circuit board carried with a second heating device is disposed between the front housing and the rear housing body.

16. The method of claim 14 , further comprising: before the step c), disposing a cooling fin so that the cooling fin is between the first heating device and the metal cover when the metal cover is assembled onto the rear housing body, wherein, a side of the cooling fin fits in with an inner side surface of the metal cover, and at least a portion of an opposing side of the cooling fin is against the higher heating device to form a thermal contact.

17. The method of claim 16 , wherein, the cooling fin is formed with a concave-convex structure, and a projection of the cooling fin abuts against the first heating device.

18. The method of claim 17 , wherein, a resilient thermal conductive element is embedded in a recess which corresponds to the projection but is formed at the side of the cooling fin facing the metal cover.

19. The method of claim 16 , wherein, the side of the cooling fin facing the metal cover is coated with a thermal conductive adhesive.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Ren Yan
• Cao Lei
• Hu Nannan
• Wang Zifeng
• Lin She

Classifications

• H05K7/2039

  characterised by the heat transfer by conduction from the heat generating element to a dissipating body (arrangements for increasing/decreasing heat-transfer, e.g. fins details, F28F13/00) · CPC title

• H05K5/03 Primary

  Covers · CPC title

• H05K1/0203

  Cooling of mounted components (H05K1/0272 takes precedence) · CPC title

• H05K5/0017 Primary

  with operator interface units · CPC title

• H05K7/20963 Primary

  Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20972 takes precedence) · CPC title