Portable electronic devices

Abstract

A portable electronic device includes a main unit and a display unit. The main unit includes a casing, electronic components, and two fans. The casing has a bottom surface, a top surface, an accommodating space, and a first air outlet. The top surface is opposite to the bottom surface. The accommodating space is located between the bottom and top surfaces and is divided into a central area and two side areas. The central area is located between the two side areas. The first air outlet is located on the top surface and communicates with the central area of ​​the accommodating space. The electronic components are located in the central area and include a motherboard and at least one heat source, with the at least one heat source disposed on the motherboard. The two fans are respectively located in the two side areas. The display unit is rotatably disposed on the main unit. The two fans are used to generate a cooling airflow that passes through the central area and exits from the first air outlet.

Description

Technical Field

[0001] This utility model relates to a portable electronic device, and more particularly to a portable electronic device that uses a fan for heat dissipation. Background Technology

[0002] Generally, laptops contain high-heat-generating components such as the central processing unit (CPU) and a fan to cool the CPU. When the fan is running, it guides airflow over the CPU and then exhausts the waste heat generated by the CPU from the rear of the laptop.

[0003] However, laptops typically have a hinge at the back to connect the screen, and when the screen is open, the screen and hinge partially obstruct the heat dissipation area at the back of the laptop. As a result, the cooling efficiency of the fan may be reduced due to the reduced heat dissipation area. Utility Model Content

[0004] The purpose of this invention is to provide a portable electronic device by adding an air vent to the top surface of the main unit's casing to increase the heat dissipation area of ​​the portable electronic device.

[0005] A portable electronic device disclosed in one embodiment of this utility model includes a main body and a display body. The main body includes a casing, an electronic component, and two fans. The casing has a bottom surface, a top surface, an accommodating space, and a first air outlet. The top surface is opposite to the bottom surface. The accommodating space is located between the bottom and top surfaces and is divided into a central area and two side areas. The central area is located between the two side areas. The first air outlet is located on the top surface and communicates with the central area of ​​the accommodating space. The electronic component is located in the central area and includes a motherboard and at least one heat source, with the at least one heat source disposed on the motherboard. The two fans are respectively located in the two side areas. The display body is rotatably disposed on the main body. The two fans are used to form a cooling airflow that flows through the central area and exits from the first air outlet.

[0006] According to one embodiment of the present invention, the housing further has a rear side and a second air outlet, the rear side being connected to the bottom surface and the top surface, and the second air outlet being located on the rear side and communicating with the central area of ​​the accommodating space.

[0007] According to one embodiment of the present invention, it further includes a pivot shaft connecting the main unit and the display unit. The housing also includes an upper shell, a lower shell, and a wind deflector. The lower shell and the upper shell are assembled to surround the accommodating space. The bottom surface is located on the lower shell and the top surface is located on the upper shell. The upper shell has an inner surface facing away from the top surface. The wind deflector protrudes from the inner surface and is closer to the pivot shaft than the first air outlet, so that the wind deflector stops on the side of the upper channel near the pivot shaft.

[0008] According to one embodiment of the present invention, the upper shell includes an assembly frame and a cover plate. The assembly frame is assembled with the lower shell, the cover plate is assembled to the assembly frame and is surrounded by the assembly frame, and the first air outlet is located on the cover plate.

[0009] According to one embodiment of the present invention, the cover plate is made of a different material than the assembly frame.

[0010] According to one embodiment of the present invention, the cover plate is made of plastic material.

[0011] According to one embodiment of the present invention, each fan has a first fluid outlet and a second fluid outlet, the first fluid outlet facing the rear side and the second fluid outlet facing the central area. The main unit also includes two heat dissipation fins and two heat pipes. The two heat dissipation fins are respectively located at the two first fluid outlets. One end of the two heat pipes is thermally coupled to the two heat dissipation fins, and the other end of the two heat pipes is thermally coupled to the at least one heat source.

[0012] According to one embodiment of the present invention, the first air outlet extends inward from the top surface, and the extending direction of the first air outlet forms an acute angle with the normal direction of the top surface.

[0013] According to one embodiment of the present invention, the housing also has two air inlets, which are located on the bottom surface and respectively connected to the two side areas of the accommodating space.

[0014] According to the portable electronic device of the above embodiment, a first air outlet communicating with the accommodating space is added to the top surface of the main unit's casing, so that the heat generated by the heat source in the accommodating space can be discharged through the unobstructed first air outlet, thereby increasing the heat dissipation area of ​​the main unit and improving the heat dissipation efficiency of the fan.

[0015] The above description of the present invention and the following description of the embodiments are used to demonstrate and explain the principles of the present invention, and to provide a further explanation of the claims of the present invention. Attached Figure Description

[0016] Figure 1 This is a perspective view of a portable electronic device according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 An exploded view of the main unit.

[0018] Figure 3 for Figure 1 A bottom-view cross-sectional diagram of the main unit.

[0019] Figure 4 for Figure 1 A side cross-sectional view of the main unit.

[0020] Figure 5 for Figure 1 A bottom-view cross-sectional diagram of the main unit.

[0021] Figure 6 for Figure 4 Enlarged image.

[0022] The attached figures are labeled as follows:

[0023] 10: Portable electronic devices

[0024] 100: Main unit

[0025] 110: Chassis

[0026] 111: Upper shell

[0027] 1110: Assemble the frame

[0028] 1111: Cover plate

[0029] 112: Lower shell

[0030] 113: Windshield

[0031] 120: Electronic Components

[0032] 121: Motherboard

[0033] 122: First heat source

[0034] 123: Second heat source

[0035] 130: Fan

[0036] 140: Heat dissipation fins

[0037] 150: Heat pipe

[0038] 200: Display body

[0039] 300: Pivot Shaft

[0040] A1: Central District

[0041] A2: Lateral area

[0042] C1: Upper channel

[0043] C2: Lower Passage

[0044] D1: First Direction

[0045] D2: Second Direction

[0046] F1: First direction of fan airflow

[0047] F2: Second direction of fan airflow

[0048] G1: First air outlet

[0049] G2: Second air outlet

[0050] G3: Air Inlet

[0051] O1: First fluid outlet

[0052] O2: Second fluid outlet

[0053] S1: Bottom surface

[0054] S2: Top surface

[0055] S3: Storage space

[0056] S4: Rear side

[0057] S5: Inner surface Detailed Implementation

[0058] Please see Figures 1 to 3 . Figure 1 This is a perspective view of a portable electronic device according to an embodiment of the present invention. Figure 2 for Figure 1 An exploded view of the main unit. Figure 3 for Figure 1 A bottom-view cross-sectional diagram of the main unit.

[0059] In this embodiment, the portable electronic device 10 includes a main body 100 and a display body 200. The display body 200 is rotatably disposed on the main body 100. The main body 100 includes a housing 110, an electronic component 120, and two fans 130. The housing 110 has a bottom surface S1, a top surface S2, an accommodating space S3, and a first air outlet G1. The top surface S2 is opposite to the bottom surface S1. The accommodating space S3 is located between the bottom surface S1 and the top surface S2, and is divided into a central area A1 and two side areas A2. The central area A1 is located between the two side areas A2. The first air outlet G1 is located on the top surface S2 and communicates with the central area A1 of the accommodating space S3. In this embodiment, the housing 110 also includes an upper shell 111, a lower shell 112, and a wind deflector 113. The lower shell 112 and the upper shell 111 are assembled to form an accommodating space S3. The bottom surface S1 is located on the lower shell 112, and the top surface S2 is located on the upper shell 111.

[0060] Electronic component 120 is located in the central area A1 and includes a motherboard 121, a first heat source 122, and a second heat source 123, with the first heat source 122 and the second heat source 123 disposed on the motherboard 121. The first heat source 122 may be, for example, a central processing unit, and the second heat source 123 may be, for example, a display chip, but the type and number of heat sources are not limited thereto. Only a portion of the motherboard 121 is located in the central area A1.

[0061] Two fans 130 are located in the two side zones A2 respectively. The two fans 130 are used to generate a cooling airflow that flows through the central zone A1 and exits from the first air outlet G1.

[0062] In this embodiment, the housing 110 further includes a rear side surface S4, a second air outlet G2, and two air inlets G3. The rear side surface S4 is connected to the bottom surface S1 and the top surface S2. The second air outlet G2 is located on the rear side surface S4 and communicates with the central area A1 of the accommodating space S3. The two air inlets G3 are located on the bottom surface S1 and are respectively connected to the two side areas A2 of the accommodating space S3, wherein the two air inlets G3 are also connected to the central area A1 of the accommodating space S3.

[0063] Each of the two fans 130 has a first fluid outlet O1 and a second fluid outlet O2. The first fluid outlet O1 faces the rear side S4. The second fluid outlet O2 faces the central area A1.

[0064] In this embodiment, the main unit 100 may further include two heat dissipation fins 140 and two heat pipes 150. The two heat dissipation fins 140 are respectively located at two first fluid outlets O1. One end of each of the two heat pipes 150 is thermally coupled to the two heat dissipation fins 140, and the other end of each heat pipe 150 is thermally coupled to at least one heat source. Here, the other ends of the two heat pipes 150 are thermally coupled to a first heat source 122 and a second heat source 123, but are not limited thereto.

[0065] Please see Figures 4 to 6 . Figure 4 for Figure 1 A side cross-sectional view of the main unit. Figure 5 for Figure 1 A bottom-view cross-sectional diagram of the main unit. Figure 6 for Figure 4 Enlarged image.

[0066] In this embodiment, the motherboard 121 further divides the central area A1 into an upper channel C1 and a lower channel C2. The upper channel C1 is farther from the bottom surface S1 than the lower channel C2. The first air outlet G1 is connected to the upper channel C1, and the second air outlet G2 is connected to the lower channel C2.

[0067] In this embodiment, the portable electronic device 10 may further include a pivot shaft 300. The pivot shaft 300 connects the main body 100 and the display body 200, allowing the display body 200 to be rotatably mounted on the main body 100. The upper shell 111 has an inner surface S5 facing away from the top surface S2. A wind deflector 113 protrudes from the inner surface S5 and is closer to the pivot shaft 300 than the first air outlet G1, so that the wind deflector 113 blocks the upper channel C1 near the pivot shaft 300. The wind deflector 113 prevents the cooling airflow flowing in the upper channel C1 from reaching the pivot shaft 300, thereby preventing heat from accumulating on the pivot shaft 300.

[0068] In this embodiment (e.g.) Figure 2 As shown, the upper housing 111 includes an assembly frame 1110 and a cover plate 1111. The assembly frame 1110 is assembled with the lower housing 112. The cover plate 1111 is assembled to the assembly frame 1110 and is surrounded by the assembly frame 1110. The cover plate 1111 may be a part of the side above the keyboard near the display unit 200, but is not limited to this. A first air outlet G1 is located on the cover plate 1111. The cover plate 1111 and the assembly frame 1110 are made of different materials. The specific heat of the material of the cover plate 1111 may be greater than that of the material of the assembly frame 1110, thereby preventing heat from accumulating on the cover plate 1111 due to the heat dissipation airflow. For example, the assembly frame 1110 may be made of metal, and the cover plate 1111 may be made of plastic, but is not limited to this. Furthermore, the cover plate 1111 may have patterns or designs for user identification.

[0069] The first air outlet G1 extends inward from the top surface S2, and the direction of extension of the first air outlet G1 forms an acute angle with the normal direction of the top surface S2. The distance between the first air outlet G1 and the pivot shaft 300 increases from the side closer to the top surface S2 to the side farther away from the top surface S2.

[0070] The following describes how the direction of airflow within the main unit 100 is used to illustrate how waste heat accumulated on the top surface S2 near the pivot 300 is effectively removed. When the two fans 130 are operating, they respectively guide the airflow in a first direction F1 from the first fluid outlet O1 and in a second direction F2 from the second fluid outlet O2. The airflow from the first fluid outlet O1 absorbs heat from the heat sink fins 140 and is then discharged from the second air outlet G2. The airflow from the second fluid outlet O2 flows down to the lower channel C2 and, after exchanging heat with the first heat source 122 and the second heat source 123 within the lower channel C2, is discharged from the second air outlet G2 in a second direction D2. The airflow from the second fluid outlet O2 also flows up to the upper channel C1 and, after absorbing heat from the upper channel C1, is discharged from the first air outlet G1 in a first direction D1.

[0071] As can be seen from the above, since the heat dissipation airflow in the upper channel C2 flows out from the first air outlet G1 on the top surface S2 instead of from the rear side of the host chassis 100, the heat dissipation airflow flowing out from the first air outlet G1 is no longer blocked by the pivot 300 and the display chassis 200, thus increasing the heat dissipation area of ​​the host chassis 100. In this way, by adding an air outlet on the top surface S2 of the chassis 110 of the host chassis 100, the heat dissipation area of ​​the host chassis 100 can be increased and the heat dissipation efficiency of the fan 130 inside the host chassis 100 can be improved.

[0072] The portable electronic device according to the above embodiment, in addition to providing a second air outlet on the rear side of the main unit, also has a first air outlet connected to the accommodating space added to the top surface of the main unit's casing. The first air outlet faces the space in front of the display unit rather than towards the pivot shaft. Therefore, heat generated by the heat source within the accommodating space can be discharged through the first air outlet without being blocked by the pivot shaft or part of the display unit. In this way, the main unit can increase the heat dissipation area and improve the cooling efficiency of the fan by adding a first air outlet on the top surface.

[0073] Although the present invention has been disclosed above with reference to the foregoing embodiments, it is not intended to limit the present invention. Those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the claims appended to this specification.

Claims

1. A portable electronic device, characterized in that Include: A mainframe, comprising: A housing has a bottom surface, a top surface, an accommodating space and a first air outlet. The top surface is opposite to the bottom surface. The accommodating space is located between the bottom surface and the top surface and is divided into a central area and two side areas. The central area is located between the two side areas. The first air outlet is located on the top surface and is connected to the central area of ​​the accommodating space. An electronic component, located in the central area, includes a motherboard and at least one heat source, the at least one heat source being disposed on the motherboard; as well as Two fans, located in the two side zones respectively; and A display unit is rotatably mounted on the main unit; The two fans are used to generate a cooling airflow that flows through the central area and exits from the first air outlet.

2. The portable electronic device of claim 1, wherein, The housing also has a rear side and a second air outlet. The rear side is connected to the bottom surface and the top surface, and the second air outlet is located on the rear side and communicates with the central area of ​​the accommodating space.

3. The portable electronic device of claim 2, wherein, The motherboard further divides the central area into an upper channel and a lower channel. The upper channel is farther away from the bottom surface than the lower channel. The first air outlet is connected to the upper channel, and the second air outlet is connected to the lower channel.

4. The portable electronic device of claim 3, wherein, It also includes a pivot shaft connecting the main unit and the display unit. The housing also includes an upper shell, a lower shell, and a wind deflector. The lower shell and the upper shell are assembled to surround the accommodating space. The bottom surface is located on the lower shell and the top surface is located on the upper shell. The upper shell has an inner surface facing away from the top surface. The wind deflector protrudes from the inner surface and is closer to the pivot shaft than the first air outlet, so that the wind deflector stops on the side of the upper channel near the pivot shaft.

5. The portable electronic device of claim 4, wherein, The upper housing includes an assembly frame and a cover plate. The assembly frame is assembled with the lower housing. The cover plate is assembled to the assembly frame and is surrounded by the assembly frame. The first air outlet is located on the cover plate.

6. The portable electronic device of claim 5, wherein, The cover plate is made of a different material than the assembled frame.

7. The portable electronic device of claim 6, wherein the first and second portions are configured to be coupled together by a hinge. The cover is made of plastic.

8. The portable electronic device of claim 2, wherein, Each of the fans has a first fluid outlet and a second fluid outlet, the first fluid outlet facing the rear side and the second fluid outlet facing the central area. The main unit also includes two heat dissipation fins and two heat pipes. The two heat dissipation fins are respectively located at the two first fluid outlets. One end of the two heat pipes is thermally coupled to the two heat dissipation fins, and the other end of the two heat pipes is thermally coupled to the at least one heat source.

9. The portable electronic device of claim 1, wherein, The first air outlet extends inward from the top surface, and the direction of the extension of the first air outlet forms an acute angle with the normal direction of the top surface.

10. The portable electronic device of claim 1, wherein, The housing also has two air inlets located on the bottom surface and connected to the two side areas of the accommodating space, respectively.

Images