TWI740292B - Electronic device - Google Patents

Abstract

An electronic device includes a body, a bracket and a forced convection element. The body has a heat source. The bracket supports the body, the bracket has a cavity and an air outlet, and the cavity is communicated with the heat source. The forced convection element is disposed in the cavity of the bracket and is configured to dissipate heat, generated by the heat source, from the body to the air outlet through the cavity.

Description

Electronic device

The present invention relates to an electronic device, and more particularly to an electronic device in which a support is configured with a forced convection element.

Conventional electronic devices usually generate heat during operation, and heat sources include, for example, circuit boards, chips, light sources, and the like. The heat generated by these heat sources causes the temperature to rise, which reduces the component life of the electronic device. Therefore, how to effectively guide the heat generated by the heat source is one of the goals of the industry in this technical field.

The present invention relates to an electronic device that can improve the aforementioned conventional problems.

An embodiment of the present invention provides an electronic device. The electronic device includes a body, a bracket and a forced convection element. The body has a heat source. The bracket supports the machine body. The bracket has a cavity and an air outlet, and the cavity is communicated with the heat source. The forced convection element is arranged in the cavity of the bracket and used to discharge the heat generated by the heat source from the body to the air outlet through the cavity.

In order to have a better understanding of the above and other aspects of the present invention, the following specific examples are given in conjunction with the accompanying drawings to describe in detail as follows:

100: electronic device

110: body

110u: display surface

120: bracket

120r: cavity

120a: air outlet

120b1: The first air inlet

120b2: second air inlet

121: The first ring shell

121s: inside

122: second ring shell

123: The first shell

124: Second Shell

125: second rail

126: side shell

127: Holder

130: Forced convection element

140: base

150: valve mechanism

151: The first valve

151a: first through hole

1511: First Entity Department

152: The second valve

152a: second through hole

1521: The second physical part

153: Pivot Rod

154: The first sliding part

155: second sliding part

156: connecting rod

160: light source module

160: light guide

161s: Glossy surface

162: light source

163: Switch

1631: contact group

1631a: contact

164: Circuit Board

1641: Contact

170: lever

D1: Wind direction

D2: display direction

P1: The first flow path

P2: Second flow path

FIG. 1A is a schematic diagram of an electronic device according to an embodiment of the invention.

Fig. 1B shows an exploded view of the electronic device of Fig. 1A.

Fig. 2A shows a cross-sectional view of the electronic device of Fig. 1A along the direction 2A-2A'.

Figure 2B shows a schematic diagram of the lever in Figure 2A in the second mode.

Fig. 3 shows a schematic diagram of the valve mechanism and the light source module of Fig. 2A from a perspective view.

Fig. 4 shows a schematic diagram of the valve mechanism and the light source module of Fig. 2A from another perspective.

Please refer to FIGS. 1A to 4, FIG. 1A shows a schematic diagram of an electronic device 100 according to an embodiment of the present invention, FIG. 1B shows an exploded view of the electronic device 100 in FIG. 1A, and FIG. 2A shows a diagram of the electronic device 100 in FIG. 1A. A cross-sectional view of the electronic device 100 along the direction 2A-2A', FIG. 2B shows a cross-sectional view of the electronic device 100 when the lever of FIG. 2A is moved down, and FIG. 3 shows the valve mechanism 150 and the valve mechanism of FIG. 2A. The light source module 160 is a schematic view from one viewing angle, and FIG. 4 is a schematic view of the valve mechanism 150 and the light source module 160 of FIG. 2A from another viewing angle.

The electronic device 100 is, for example, a display, a projector, or other electronic devices that generate heat during operation. The electronic device 100 of the embodiment of the present invention is illustrated by taking a display device as an example. The electronic device 100 includes a body 110, a bracket 120, a forced convection element 130, a base 140, a valve mechanism 150, a light source module 160 and a lever 170. The body 110 has a heat source (not shown). The bracket 120 is used to support the body 110. The bracket 120 has a cavity 120r and an air outlet 120a, and the cavity 120r communicates with a heat source. Forced convection element 130 It is arranged in the cavity 120r of the bracket 120 and used to discharge the heat generated by the heat source from the body 110 to the air outlet 120a through the cavity 120r. In this way, in addition to quickly dissipating heat to the electronic device 100, the heat generated by the heat source is discharged outside the electronic device 100 to become hot air, which can be used for heating purposes. For example, the air outlet 120a faces the user, and the hot air flowing from the air outlet 120a can make the user feel warm. In addition, the heat source of the body 110 is, for example, electronic components arranged in the body 110, such as a circuit board, various chips, a light source, a display panel, and the like.

In this embodiment, the body 110 is, for example, a display screen, and the base 140 supports the bracket 120, wherein the air outlet direction D1 of the air outlet 120a is substantially the same as the display direction D2 of the display surface 110u of the body 110, for example, the wind direction D1 It can be substantially parallel to the display direction D2 or a predetermined angle between the two. The predetermined angle is, for example, between about 1 degree and about 10 degrees, but it can also be larger or smaller. When the electronic device 100 is a projector, the body 110 may be a projector body (for example, including a projector, a projection light source, a lens module, etc.), and/or the base 140 may be optionally omitted.

The bracket 120 has a first air inlet 120b1 and a second air inlet 120b2. The first air inlet 120b1 communicates with the cavity 120r and the heat source. In this way, the heat from the heat source can enter the cavity 120r through the first air inlet 120b1, and then flow out of the bracket 120 through the air outlet 120a.

The bracket 120 has a first annular shell 121, a second annular shell 122, and a first shell 123 and a second shell 124 opposite to each other. The first housing 123 is, for example, facing the back of the electronic device 100, and the second housing 124 is, for example, facing the front of the electronic device 100 (for example, toward the viewer). The first annular shell 121 extends from the first shell 123 to the second shell 124, and the second ring The shaped shell 122 extends from the second shell 124 toward the first shell 123. In addition, the first annular shell 121 and the first annular shell 122 are spaced up and down with the air outlet 120a. For example, the second annular shell 122 surrounds the first annular shell 122, and the first annular shell 121 and the first annular shell 122 are separated from each other. Air outlets 120a are formed at intervals. Since the first annular shell 121 and the first annular shell 122 have a ring shape, such as a closed ring or an open ring, the air outlet 120a also has a corresponding ring shape. In addition, the contour of the inner surface 121s of the first annular shell 121 extends in a straight line. For example, the inner surface 121s of the first annular shell 121 is a cylindrical surface without any protrusions or recesses (which can reduce the flow resistance). ), however, this is not intended to limit the embodiment of the present invention. The contour of the inner surface 122s of the second annular shell 122 extends, for example, in the same or substantially linear direction, similar to the aforementioned inner surface 121s.

The forced convection element 130 is, for example, a fan, such as an axial fan, which is disposed in the cavity 120 r of the bracket 120. The forced convection element 130 is located between the air outlet 120a and the first air inlet 120b1. When the forced convection element 130 operates, a first flow path P1 (such as (Shown in Figure 2B). In addition, the forced convection element 130 is located between the air outlet 120a and the second air inlet 120b2. When the forced convection element 130 operates, a second flow path P2 passing through the forced convection element 130 is formed between the air outlet 120a and the second air inlet 120b2 (as shown in FIG. 2A). The forced convection element 130 can be controlled separately, for example, it can be enabled (opened) or disabled (closed) when operating independently of the body 110. As shown in FIG. 2A, the direction of the air flow in the cavity 120r is different from the direction D1 of the air outlet 120a.

One of the first flow path P1 and the second flow path P2 can be selectively turned on, while at the same time the other of the first flow path P1 and the second flow path P2 is closed to switch the hot air out (For example, the first flow path P1 is turned on) or cold wind is discharged (such as the second flow path P2 is turned on). This switching function can be realized by the valve mechanism 150, which will be further illustrated below.

As shown in FIGS. 2A and 2B, the valve mechanism 150 includes a first valve 151, a second valve 152, a pivot rod 153, a first sliding portion 154, a second sliding portion 155, and a connecting rod 156. The first valve 151 is disposed in the cavity 120r of the bracket 120 corresponding to the first air inlet 120b1. The pivot rod 153 is pivotally connected to the first valve 151 and used to selectively drive the first valve 151 to shield or expose the first air inlet 120b1. The second valve 152 is disposed in the cavity 120r of the bracket 120 corresponding to the second air inlet 120b2. The pivot rod 153 is pivotally connected to the second valve 152 and is used to selectively drive the second valve 152 to shield or expose the second air inlet 120b2.

As shown in FIG. 2B, the first valve 151 has a first physical portion 1511 and at least one first through hole 151 a, wherein the first through hole 151 a penetrates the first physical portion 1511. When the first valve 151 exposes the first air inlet 120b1, the first through hole 151a overlaps the first air inlet 120b1 to allow the heat generated by the heat source to enter the cavity 120r through the first air inlet 120b1 and the first through hole 151a (The first flow path P1 is turned on), and then flows out from the air outlet 120a to provide a relatively high temperature air.

As shown in FIG. 2A, the second valve 152 has a second physical portion 1521 and at least one second through hole 152 a, wherein the second through hole 152 a penetrates the second physical portion 1521. When the second valve 152 exposes the second air inlet 120b2, the second through hole 152a overlaps the second air inlet 120b2 to allow outside air to pass through the second air inlet 120b2 and the second through hole 152a to enter the cavity 120r (No. The second flow path P2 is turned on), then Then, it flows out from the air outlet 120a to provide a relatively low temperature (the temperature of the outside air is generally lower than the internal temperature of the electronic device 100).

In addition, as shown in FIG. 2A, when the first valve 151 exposes the first air inlet 120b1, the second valve 152 shields the second air inlet 120b2, for example, the second physical portion 1521 overlaps the second air inlet 120b2. The second physical portion 1521 can block part or even all of the external air from entering the cavity 120r through the second air inlet 120b2 and the second through hole 152a. In this way, when the first flow path P1 is turned on, the second flow path P2 is closed.

In addition, as shown in FIG. 2B, when the second valve 152 exposes the second air inlet 120b2, the first valve 151 shields the first air inlet 120b1, for example, the first physical portion 1511 overlaps the first air inlet 120b1. The first physical portion 1511 can block part or even all of the heat generated by the heat source from entering the cavity 120r through the first air inlet 120b1 and the first through hole 151a. Thus, when the second flow path P2 is turned on, the first flow path P1 closure.

In addition, by the coordinated design of the first through hole 151a at the position of the first physical portion 1511 and the second through hole 152a at the position of the second physical portion 1521, the first valve 151 can shield the first air inlet 120b1 (the first When the flow path P1 is closed), the second valve 152 exposes the second air inlet 120b2 (as shown in Figure 2A, the second flow path P2 is conductive), and when the first valve 151 exposes the first air inlet 120b1 (as shown in Figure 2B) As shown, when the first flow path P1 is turned on), the second valve 152 shields the second air inlet 120b2 (the second flow path P2 is closed).

As shown in Figure 3, the first sliding portion 154 is connected to the first valve 151, and the first sliding portion 154 is pivotally connected to the bracket 120 to guide the first sliding portion 154 Path of motion. For example, the first sliding portion 154 is slidably disposed on the first rail (not shown) of the bracket 120. The first guide rail extends linearly, for example, to guide the first sliding portion 154 to slide along a straight line. However, in another embodiment, the first guide rail may extend along a curve or a curved surface to guide the first sliding portion 154 to slide along the corresponding sliding path.

As shown in FIG. 3, the bracket 120 further includes a second guide rail 125 disposed in the cavity 120r. The second sliding portion 155 of the valve mechanism 150 is connected to the second valve 152, and the second sliding portion 155 is slidably located on the second guide rail 125. In the embodiment, the second guide rail 125 extends linearly, so that the second sliding portion 155 can be guided to slide along a straight line. However, in another embodiment, the second guide rail 125 may extend along a curve or a curved surface to guide the second sliding portion 155 to slide along the corresponding sliding path.

As shown in Figure 3, the connecting rod 156 of the valve mechanism 150 is pivotally connected to the second valve 152 and the shift lever 170. In this way, when the shift lever 170 slides up and down, the connecting rod 156, the second valve 152, and the pivot rod 153 can be driven. And the first valve 151 moves.

As shown in Figures 3 and 4, the light source module 160 is disposed in the cavity 120r of the bracket 120 (the cavity 120r is shown in Figure 2A) and is used to emit different first color light and second color light. When the first valve 151 exposes the first air inlet 120b1 and the second valve 152 covers the second air inlet 120b2, the light source module 160 emits the first color light. When the first valve 151 shields the first air inlet 120b1 and the second valve 152 exposes the second air inlet 120b2, the light source module 160 emits the second color light. In this way, the user can judge the current wind mode through different light colors. In an embodiment, the first color light is, for example, a warm color, such as red, and the second color light is, for example, a cool color, such as blue.

As shown in FIGS. 3 and 4, the light source module 160 includes a light guide bar 161, at least one light source 162, a switch 163, and a circuit board 164. The light guide strip 161 is arranged around the air outlet 120a and has a light incident surface 161s. The light source 162 is disposed on the circuit board 164 and is configured corresponding to the light incident surface 161s. As shown in FIG. 2A, the bracket 120 further includes a holder 127 connected to the end of the second annular shell 122 and can hold the light guide strip 161 between the second annular shell 122 and the holder 127. The holder 127 is made of, for example, a light-transmitting material, so that the light emitted by the light guide strip 161 enters the air outlet 120a through the holder 127, so that the user can observe the light color of the light emitted by the light guide strip 161 from the air outlet 120a. .

The switch 163 is electrically connected to the light source 162, and is used to switch the light source 162 to emit the first color light or the second color light. In the embodiment, the light guide bar 161 has two light incident surfaces 161s, and the two light sources 162 are respectively disposed on the two circuit boards 164 and correspond to the two light incident surfaces 161s, so that the light emitted by the light source 162 can be incident on the light incident surface 161s. In addition, the light source 162 is, for example, a light emitting diode or other types of light sources. The switch 163 includes two contact groups 1631, and each contact group 1631 includes a plurality of contacts 1631a, which are electrically connected to the corresponding contacts 1641 of the circuit board 164. The switch 163 can slide up and down between the first mode (the position shown in Figure 2A) and the second mode (the position shown in Figure 2B). When the switch 163 is in the first mode, the contact 1631a of each contact group 1631 is electrically connected to the corresponding contact 1641, so that the light source 162 emits the first color light. When the switch 163 is in the second mode, the different contacts 1631a of the contact groups 1631 are electrically connected to the corresponding contacts 1641, so that the light source 162 emits the second color light.

In addition, as shown in FIG. 2A, the light source module 160 is disposed in the cavity 120r and is located in the first flow path P1, so the heat generated by the light source 162 and/or the circuit board 164 can flow to the air outlet 120a through the first flow path P1 , Can increase the air outlet temperature.

As shown in FIGS. 3 and 4, the lever 170 is connected to the light source module 160 and the valve mechanism 150. As shown in Figure 2A, when the lever 170 is in the first mode (the position shown in Figure 2A), the first valve 151 exposes the first air inlet 120b1, the second valve 152 covers the second air inlet 120b2, and the light source mode The group 160 emits the first color light. When the lever 170 is in the second mode (the position shown in Figure 2B), the first valve 151 shields the first air inlet 120b1, the second valve 152 exposes the second air inlet 120b2, and the light source module 160 emits the second color light. In addition, as shown in FIGS. 2A and 2B, the shift lever 170 protrudes from the housing of the bracket 120 to facilitate the operation of the user. In the embodiment, the shift rod 170 protrudes from the first shell 123 of the bracket 120, but it may also protrude from one of the two opposite side shells 126 of the bracket 120 (the side shell 126 is shown in FIG. 1B), wherein the side shell 126 It extends between the first shell 123 and the second shell 124 (the first shell 123 and the second shell 124 are shown in FIG. 2A).

In summary, although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.

100: electronic device

110: body

110u: display surface

120: bracket

120r: cavity

120a: air outlet

120b1: The first air inlet

120b2: second air inlet

121: The first ring shell

121s: inside

122: second ring shell

123: The first shell

124: Second Shell

125: second rail

126: side shell

127: Holder

130: Forced convection element

140: base

150: valve mechanism

151: The first valve

151a: first through hole

1511: First Entity Department

152: The second valve

152a: second through hole

1521: The second physical part

153: Pivot Rod

154: The first sliding part

155: second sliding part

161: light guide

170: lever

D1: Wind direction

D2: display direction

P2: Second flow path

Claims (10)

An electronic device includes: a body with a heat source; a bracket supporting the body, the bracket having a cavity and an air outlet, the cavity communicating with the heat source; and a forced convection element arranged on the bracket The cavity is used for discharging the heat generated by the heat source from the body to the air outlet through the cavity; wherein the flow direction of the airflow in the cavity is different from the air outlet direction of the air outlet; wherein, the The body is a display screen, the display screen has a display surface, and the electronic device further includes: a base for supporting the bracket, wherein the wind direction of the air outlet and a display direction of the display surface are substantially the same direction . According to the electronic device described in claim 1, wherein the bracket has a first air inlet, and the first air inlet communicates with the cavity and the heat source. The electronic device further includes: a first valve corresponding to the first air inlet. An air inlet is arranged in the bracket; and a pivot rod is pivotally connected to the first valve and used for selectively driving the first valve to shield or expose the first air inlet. As for the electronic device described in claim 2, wherein the first valve has a first physical portion and a first through hole, and the first through hole penetrates the first physical portion; when the first valve exposes the When the first air inlet, the first through hole Overlap with the first air inlet; when the first valve shields the first air inlet, the first physical part overlaps with the first air inlet. For the electronic device described in claim 1, wherein the bracket has a second air inlet, and the electronic device further includes: a second valve arranged in the bracket corresponding to the second air inlet; and a pivot The rod is pivotally connected to the second valve and used for selectively driving the second valve to shield or expose the second air inlet. As for the electronic device described in claim 4, the second valve has a second physical part and a second through hole, and the second through hole penetrates the second physical part; when the second valve exposes the When the second air inlet is used, the second through hole overlaps the second air inlet; when the second valve covers the second air inlet, the second solid part overlaps the second air inlet. The electronic device described in item 1 of the scope of patent application, wherein the bracket has a first air inlet and a second air inlet, and the first air inlet communicates with the cavity and the heat source; the electronic device further includes: a first air inlet A valve corresponding to the first air inlet is arranged in the bracket; and a second valve corresponding to the second air inlet is arranged in the bracket. When the first valve shields the first air inlet, the second valve The valve exposes the first air inlet; when the first valve exposes the first air inlet, the second valve shields the first air inlet. The electronic device described in claim 1, wherein the holder has a first annular shell, a second annular shell, and a first shell and a second shell opposite to each other. Shell, the first annular shell extends from the first shell to the second shell, the second annular shell extends from the second shell to the first shell, the first annular shell and the first ring The air outlet is spaced from the top and bottom of the shaped shell. According to the electronic device described in claim 7, wherein the inner side profile of the first annular shell extends in a straight line direction, and the inner side profile of the second annular shell extends along the straight line direction. For the electronic device described in claim 1, wherein the bracket has a first air inlet and a second air inlet, the electronic device further includes: a light source module for emitting a different first color Light and a second color light; a valve mechanism, including a first valve and a second valve, the first valve and the second valve respectively corresponding to the first air inlet and the second air inlet configuration; and a lever , Connect the light source module and the valve mechanism, and protrude from the bracket; wherein, when the lever is in a first mode, the first valve exposes the first air inlet, and the second valve shields the second air inlet And the light source module emits a first color light; when the lever is in a second mode, the first valve shields the first air inlet, the second valve exposes the second air inlet, and the light source module emits The second color light. The electronic device described in item 9 of the scope of patent application, wherein the valve mechanism further includes: a connecting rod connecting the second valve; and a pivot rod connecting the first valve and the second valve; the bracket It further includes: a guide rail arranged in the cavity; Wherein, the valve mechanism further includes a sliding part connected to the second valve, and the sliding part is slidably located on the guide rail.

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