TWI751783B - Display device and headrest assembly - Google Patents

Abstract

A display device includes a casing, a display module, a metal middle frame, a circuit board, an electronic component, a first heat sink, a second heat sink and a heat pipe. The casing includes a metal front frame. The display module is disposed in the casing. The metal middle frame is disposed in the casing and connected to the metal front frame. The circuit board is disposed on the metal middle frame. The electronic component is disposed on the circuit board. The first heat sink is disposed on the electronic component. The second heat sink is disposed adjacent to the first heat sink and an end of the second heat sink is connected to the metal middle frame. The heat pipe connects the first heat sink and the second heat sink.

Description

Display device and headrest combination

The present invention relates to a display device and a headrest combination, in particular to a display device and a headrest combination that can effectively dissipate heat from electronic components.

At present, many automobile headrests are equipped with display devices. When the display device is in operation, the current in the circuit will generate unnecessary heat energy due to the influence of the impedance. If these heat energy cannot be effectively eliminated and accumulated on the electronic components inside the display device, the electronic components may damaged by temperature. The display device installed in the headrest of the car is usually covered with foamed cotton and leather around the periphery and the back, which is not conducive to heat dissipation. Therefore, how to effectively dissipate heat from the display device installed in the headrest of the car has become a major issue in design.

The present invention provides a display device and a headrest combination that can effectively dissipate heat from electronic components, so as to solve the above problems.

According to an embodiment, the display device of the present invention includes a casing, a display module, a metal middle frame, a circuit board, an electronic component, a first radiator, a second radiator and a heat pipe. The casing includes a metal outer frame. The display module is arranged in the casing. The metal middle frame is arranged in the casing and connected to the metal outer frame. The circuit board is arranged on the metal middle frame. Electronic components are arranged on the circuit board. The first heat sink is arranged on the electronic component. The second heat sink is disposed adjacent to the first heat sink, and one end of the second heat sink is connected to the metal middle frame. The heat pipe is connected to the first radiator and the second radiator.

According to another embodiment, the headrest assembly of the present invention includes a headrest and a display device. The headrest has an accommodating slot. The display device is arranged in the accommodating slot. The display device includes a casing, a display The module, a metal middle frame, a circuit board, an electronic component, a first radiator, a second radiator and a heat pipe. The casing includes a metal outer frame. The display module is arranged in the casing. The metal middle frame is arranged in the casing and connected to the metal outer frame. The circuit board is arranged on the metal middle frame. Electronic components are arranged on the circuit board. The first heat sink is arranged on the electronic component. The second heat sink is disposed adjacent to the first heat sink, and one end of the second heat sink is connected to the metal middle frame. The heat pipe is connected to the first radiator and the second radiator.

To sum up, when the electronic components in the display device generate heat energy, a part of the heat energy can be radiated into the air by the first heat sink, and another part of the heat energy can be conducted to the second heat sink by the heat pipe. Then, the heat energy can be conducted by the second heat sink to the metal middle frame, and then from the metal middle frame to the metal outer frame of the casing. In this way, the heat energy can be dissipated from the metal frame of the casing to the air outside the headrest, so that the display device can be stably and normally operated in the headrest.

The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings.

1: headrest combination

10: Headrest

12,12': Display device

14: Gap

100: accommodating slot

120: Shell

122: Display module

124: Metal middle frame

126: circuit board

128: Electronic Components

130: First radiator

132: Second radiator

134: Heat Pipe

136: Fan

1200: metal frame

1202: Back cover

1204: Groove

1206, 1208: Thermal holes

X: hatch

FIG. 1 is a perspective view of a headrest assembly according to an embodiment of the present invention.

Figure 2 is an exploded view of the headrest and display device in Figure 1.

Figure 3 is an exploded view of the metal frame and back cover in Figure 2.

FIG. 4 is an exploded view of the first radiator, the second radiator and the heat pipe in FIG. 3 .

FIG. 5 is a cross-sectional view of the headrest assembly in FIG. 1 .

FIG. 6 is an internal schematic diagram of a display device according to another embodiment of the present invention.

Please refer to FIGS. 1 to 5. FIG. 1 is a perspective view of a headrest assembly 1 according to an embodiment of the present invention, FIG. 2 is an exploded view of the headrest 10 and the display device 12 in FIG. 1, and FIG. 3 Figure 2 is an exploded view of the metal frame 1200 and the back cover 1202 in Figure 2, Figure 4 is the first heat sink 130 and the second heat sink in Figure 3 Figure 5 is an exploded view of the heater 132 and the heat pipe 134, and Figure 5 is a cross-sectional view of the headrest assembly 1 in Figure 1 taken along line X-X.

As shown in FIGS. 1 and 2 , the headrest assembly 1 includes a headrest 10 and a display device 12 . The headrest 10 has an accommodating slot 100 . The display device 12 can be disposed in the accommodating groove 100 of the headrest 10 . In practical applications, the headrest 10 can be a car headrest, but not limited thereto. In addition, the display device 12 may be a liquid crystal display device or other display devices, depending on the actual application.

As shown in FIGS. 1 to 5, the display device 12 includes a casing 120, a display module 122, a metal middle frame 124, a circuit board 126, an electronic component 128, a first heat sink 130, a The second heat sink 132 and a heat pipe 134 . In this embodiment, the casing 120 may include a metal outer frame 1200 and a back cover 1202 , wherein the back cover 1202 is detachably connected to the metal outer frame 1200 . The display module 122 is disposed in the casing 120 . The display module 122 can be a liquid crystal display module or other display modules, depending on the actual application. In practical applications, the display module 122 may include a touch panel to realize the touch display function.

The metal middle frame 124 is disposed in the casing 120 and connected to the metal outer frame 1200 . In this embodiment, the metal middle frame 124 may be made of aluminum, but not limited thereto. The circuit board 126 is disposed on the metal middle frame 124 , and the electronic components 128 are disposed on the circuit board 126 . In this embodiment, the electronic component 128 may be a central processing unit (CPU), but not limited thereto. In another embodiment, the electronic components 128 may also be other heat sources disposed on the circuit board 126 . The first heat sink 130 is disposed on the electronic component 128 . The second heat sink 132 is disposed adjacent to the first heat sink 130 , and one end of the second heat sink 132 is connected to the metal middle frame 124 . In this embodiment, both the first heat sink 130 and the second heat sink 132 may include a plurality of side-by-side heat dissipation fins, but not limited thereto. The heat pipe 134 is connected to the first heat sink 130 and the second heat sink 132 . Further, one end of the heat pipe 134 can be connected to the first heat sink 130 and attached to the electronic element 128 , and the other end of the heat pipe 134 can be connected to the second heat sink 132 , so that the heat pipe 134 can generate the electronic element 128 Thermal energy is conducted to the second heat sink 132 .

When the electronic components 128 generate thermal energy, a part of the thermal energy may be radiated into the air by the first heat sink 130 , and another part of the heat energy may be conducted to the second heat sink 132 by the heat pipe 134 . Then, the thermal energy can be obtained from the The two heat sinks 132 are conducted to the metal middle frame 124 , and then the metal middle frame 124 is conducted to the metal outer frame 1200 of the casing 120 . Since the metal outer frame 1200 of the casing 120 is not covered by the headrest 10 , the present invention conducts the heat energy generated by the electronic components 128 to the metal outer frame of the casing 120 through the heat pipe 134 , the second heat sink 132 and the metal middle frame 124 . The frame 1200 can effectively dissipate heat energy from the metal outer frame 1200 of the casing 120 to the air outside the headrest 10 . In this way, the display device 12 can be stably and normally operated in the headrest 10 .

As shown in FIGS. 3 and 5 , the back cover 1202 of the housing 120 may have a groove 1204 . When the display device 12 is assembled, the first heat sink 130 and the second heat sink 132 are accommodated in the groove 1204 of the back cover 1202 . In addition, a plurality of heat dissipation holes 1206 may be formed on a surface of the groove 1204 . Since the heat dissipation holes 1206 are close to the first heat sink 130 and the second heat sink 132 , the heat energy of the first heat sink 130 and the second heat sink 132 can be quickly dissipated from the heat dissipation holes 1206 to the outside of the display device 12 .

As shown in FIG. 5 , when the display device 12 is disposed in the accommodating groove 100 of the headrest 10 , a gap 14 exists between the housing 120 of the display device 12 and an edge of the accommodating groove 100 of the headrest 10 . Therefore, the heat energy dissipated from the heat dissipation holes 1206 can be further dissipated into the air outside the headrest 10 through the gap 14, thereby enhancing the heat dissipation effect. In addition, a plurality of heat dissipation holes 1208 may also be formed around the back cover 1202 of the casing 120 . Therefore, the heat energy inside the casing 120 can also be dissipated into the air outside the headrest 10 through the heat dissipation holes 1208 and the gaps 14, thereby enhancing the heat dissipation effect.

Please refer to FIG. 6 , which is an internal schematic diagram of a display device 12 ′ according to another embodiment of the present invention. The main difference between the display device 12 ′ and the above-mentioned display device 12 is that the display device 12 ′ further includes a fan 136 , as shown in FIG. 6 . The fan 136 is disposed on the first heat sink 130 . Therefore, the present invention can utilize the fan 136 to further dissipate heat from the first heat sink 130, thereby enhancing the heat dissipation effect.

To sum up, when the electronic components in the display device generate heat energy, a part of the heat energy can be radiated into the air by the first heat sink, and another part of the heat energy can be conducted to the second heat sink by the heat pipe. Then, the heat energy can be conducted by the second heat sink to the metal middle frame, and then from the metal middle frame to the metal outer frame of the casing. In this way, heat energy can be dissipated from the metal frame of the casing to the air outside the headrest, so that the display device can be Stable and functioning properly in the headrest. In addition, the heat energy inside the display device can also be dissipated into the air outside the headrest through the heat dissipation holes of the back cover and the gap between the display device and the headrest, thereby enhancing the heat dissipation effect. Furthermore, in the present invention, a fan can be installed on the radiator, so as to use the fan to further enhance the heat dissipation effect.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

12: Display device

120: Shell

124: Metal middle frame

126: circuit board

130: First radiator

132: Second radiator

134: Heat Pipe

1200: metal frame

1202: Back cover

1204: Groove

1206, 1208: Thermal holes

Claims (10)

A display device, comprising: a casing including a metal outer frame; a display module disposed in the casing; a metal middle frame disposed in the casing and connected to the metal outer frame; a circuit board , arranged on the metal middle frame; an electronic component, arranged on the circuit board; a first radiator, arranged on the electronic component; a second radiator, adjacent to the first radiator, the second radiator One end of the radiator is connected to the metal middle frame; and a heat pipe is connected to the first radiator and the second radiator; wherein, the heat energy generated by the electronic component passes through the heat pipe, the second radiator and the metal The frame is conducted to the metal outer frame and then radiated from the metal outer frame. The display device of claim 1, wherein the casing further comprises a back cover connected to the metal frame, the back cover has a groove, the first heat sink and the second heat sink are accommodated in the in the groove. The display device according to claim 2, wherein a plurality of heat dissipation holes are formed on a surface of the groove. The display device according to claim 1, further comprising a fan disposed on the first heat sink. The display device according to claim 1, wherein the display device is disposed in an accommodating groove of a headrest, and a gap exists between the casing and an edge of the accommodating groove. A headrest combination, comprising: a headrest with an accommodating slot; and A display device disposed in the accommodating slot, the display device comprising: a casing including a metal outer frame; a display module disposed in the casing; a metal middle frame disposed in the casing and is connected to the metal outer frame; a circuit board is arranged on the metal middle frame; an electronic component is arranged on the circuit board; a first radiator is arranged on the electronic component; a second radiator, It is disposed adjacent to the first radiator, one end of the second radiator is connected to the metal middle frame; and a heat pipe is connected to the first radiator and the second radiator; wherein, the heat energy generated by the electronic component passes through the The heat pipe, the second heat sink and the metal middle frame are conducted to the metal outer frame, and then radiated from the metal outer frame to the outside of the headrest. The headrest assembly of claim 6, wherein the housing further comprises a back cover connected to the metal outer frame, the back cover has a groove, and the first radiator and the second radiator are accommodated in in this groove. The headrest assembly as claimed in claim 7, wherein a plurality of heat dissipation holes are formed on a surface of the groove. The headrest assembly according to claim 6, wherein the display device further comprises a fan disposed on the first radiator. The headrest assembly as claimed in claim 6, wherein a gap exists between the shell and an edge of the accommodating slot.

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