Complete machine structure

Patent metadata

Field	Value
Publication number	US-12446182-B2
Application number	US-202117926182-A
Country	US
Kind code	B2
Filing date	Dec 16, 2021
Priority date	Dec 16, 2021
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

The present disclosure provides a complete machine structure, including a display module and a complete machine exterior frame. The display module includes a display panel and a front frame, the front frame including a front frame side edge on an outer side of a side edge of the display panel. The complete machine exterior frame includes at least one outer frame side edge each located on a side of the front frame side edge away from the display panel, and in contact with the front frame side edge. When a total contact area of all outer frame side edges and corresponding front frame side edges satisfies a certain condition, heat transferred from the display module to the complete machine exterior frame can be reduced by controlling the total contact area.

First claim

What is claimed is:

1. A complete machine structure, comprising a display module and a complete machine exterior frame, wherein the display module comprises a display panel and a front frame, the front frame comprises a front frame side edge on an outer side of a side edge of the display panel; the complete machine exterior frame comprises at least one outer frame side edge each located on a side of the front frame side edge away from the display panel, and in contact with the front frame side edge, and a total contact area of all outer frame side edges and corresponding front frame side edges satisfies:

S
≤

L
×
P

K
×

(

T
1

-

T
2

)

where S is the total contact area; L is a maximum width of the outer frame side edge at a position where the outer frame side edge is in contact with the front frame side edge in a direction perpendicular to a contact surface of the outer frame side edge with the front frame side edge; P is a power of the display module, which is a sum of a power of the display panel and a power of a backlight module of the display module; K is a heat conductivity coefficient of the outer frame side edge; T 1 is a temperature of the display module at an ambient temperature of 20° C., wherein the temperature of the display module is defined as an actual temperature of the display module detected on a printed circuit board thereof at a preset ambient temperature when the display module of the complete machine structure is turned on to present a static image and reaches a temperature stable state; T 2 is a maximum allowable temperature on a surface of the outer frame side edge away from the display module at an ambient temperature of 20° C.; and
T 2 is less than or equal to 50° C.

2. The complete machine structure according to claim 1 , wherein the total contact area of all outer frame side edges and corresponding front frame side edges satisfies:

r
×

(

L
×
P

K
×

(

T
1

-

T
2

)

)

≤
S
≤

L
×
P

K
×

(

T
1

-

T
2

)

where r takes a value in a range of [0.5,1).

3. The complete machine structure according to claim 2 , wherein r=0.8.

4. The complete machine structure according to claim 1 , wherein the maximum allowable temperature T 2 of the outer frame side edge is 38° C.

5. The complete machine structure according to claim 1 , wherein the power of the display module is greater than or equal to 190 W.

6. The complete machine structure according to claim 1 , wherein the outer frame side edge is spaced apart from the front frame side edge, the outer frame side edge has a contact structure, and a surface of the contact structure in contact with the front frame side edge is the contact surface; and
a number of the contact surface is two or more, the two or more contact surfaces being uniformly distributed on an inner surface of the outer frame side edge facing the front frame side edge; or a number of the contact surface is one, the one contact surface being in linear contact with the front frame side edge.

7. The complete machine structure according to claim 6 , wherein the plurality of contact surfaces have a same shape and a same area.

8. The complete machine structure according to claim 6 , wherein the contact structure comprises a plurality of contact parts, each of the contact parts has one of the contact surfaces thereon; at least part of the contact parts are provided with mounting holes penetrating through the contact parts in a direction perpendicular to the contact surface; and
the complete machine structure further comprises screws, a number of the screws is the same as a number of the mounting holes, and the screws pass through the mounting holes in one-to-one correspondence to be connected to the front frame side edge.

9. The complete machine structure according to claim 8 , wherein a comb-teeth shaped protruding structure is provided on the inner surface of the outer frame side edge and between each two adjacent contact parts, and the protruding structure is spaced apart from the front frame side edge.

10. The complete machine structure according to claim 1 , wherein the complete machine structure further comprises a rear case, the rear case comprises a rear plate on a side of the display module away from a light-emitting surface of the display module, and a rear case side edge connected to the complete machine exterior frame, wherein the rear case side edge and the rear plate form a heat dissipation space on an outer side of a back plate of the display module, a heat dissipation device is provided in the heat dissipation space to dissipate heat generated by the display module; and the rear case comprises an air inlet and an air outlet.

11. The complete machine structure according to claim 10 , wherein at least one air outlet is provided at a position on the rear plate near the rear case side edge at a sky side, and a first air inlet is provided at a position on the rear plate near the rear case side edge at a ground side; and
the heat dissipation device comprises a fan, and the fan is disposed at a position near the air outlet and configured to blow air to the air outlet.

12. The complete machine structure according to claim 11 , wherein a second air inlet is further provided at a position near the first air inlet on the rear case side edge at the ground side.

13. The complete machine structure according to claim 11 , wherein a volume of air discharged by all fans per minute is defined as a CMM sum value, which is greater than or equal to a ratio of a CMM target value to an aperture ratio of the air outlet

Assignees

• Beijing Boe Display Tech Co
• Boe Technology Group Co Ltd

Inventors

• Xiao Chunlei
• Shi Yang
• Wang Hetao
• Cheng Qian

Classifications

• H05K7/20972 Primary

  Forced ventilation, e.g. on heat dissipaters coupled to components · CPC title

• H05K7/20209

  Thermal management, e.g. fan control · CPC title

• G02F1/133

  Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements (arrangements or circuits for control of liquid crystal elements in a matrix, not structurally associated with these elements G09G3/36) · CPC title

• H05K7/20145 Primary

  Means for directing air flow, e.g. ducts, deflectors, plenum or guides · CPC title