CN203232373U - portable electronic device - Google Patents

Abstract

The utility model discloses a portable electronic device, which comprises a display device and a host machine which are mutually pivoted. The display device comprises a heat transfer loop and a hollow part, and at least one part of the heat transfer loop is exposed through the hollow part. The host comprises a shell, a fan device, a fin structure arranged on the heating component and a blocking structure. The blocking structure is arranged in the shell to form a flow channel, and the fin structure is positioned in the flow channel; the two ends of the flow channel are respectively connected with the fan device and the opening of the shell. When the display device rotates relative to the host machine to present an open state, the opening of the shell corresponds to the hollow part, so that the air flow generated by the fan device can take away the heat of the fin structure and is guided to the heat transfer loop through the flow channel, and the display device is utilized for heat dissipation. The utility model discloses a flow channel is direct with the heat transfer that the host computer produced to display device, does not need extra setting to extend to other heat dissipation pipelines or similar subassemblies of display device from the host computer.

Description

portable electronic device

technical field

The utility model relates to a portable electronic device, in particular to a portable electronic device which provides heat dissipation function through a display device.

Background technique

Today's portable electronic devices tend to be lighter and thinner, so as to reduce their internal space and facilitate users to carry them. Taking notebook computers as an example, in the past, an air-cooled or water-cooled heat dissipation module was installed at the internal heating components to provide heat dissipation for the host computer. However, in order to meet the demand for thinner and lighter, the available space inside the system is getting smaller and smaller, and even some models do not have enough space for such cooling modules. Based on this, currently notebook computers have developed a similar design for dissipating heat through the display device, trying to transfer the heat emitted by the host computer to the display device, and use the shell of the display device as a low-temperature and large-area heat dissipation plane to communicate with the outside air. heat exchange.

However, in order to smoothly transfer heat from the host to the display device, the current common methods are mostly through a contact heat transfer medium (such as a hinge with heat conduction function) or a working fluid (such as a liquid-cooled tube) between the two. road, etc.) to dissipate heat by heat conduction. Since the display device and the host are pivotally connected to each other, the display device needs to be frequently rotated relative to the host to complete the opening or closing operation, so the aforementioned design may have structural problems such as reliability or fluid leakage. In addition, once the aforementioned heat dissipation design fails, it is necessary to replace the heat dissipation components inside the display device and the host at one time, which will cause troubles for users.

Therefore, how to further improve the existing design so as to efficiently provide the heat dissipation effect of the host through the display device is a subject worthy of research.

Utility model content

In view of this, the main purpose of the present utility model is to provide a portable electronic device that provides a heat dissipation function through a display device, so as to solve the problem that the portable electronic device in the prior art transfers heat from the host end to the display end. The technical problem caused by its internal heat dissipation pipeline setting.

To achieve the above purpose, the portable electronic device of the present invention includes a display device and a host that are pivotally connected to each other. The display device includes a heat transfer circuit and a hollow part. The heat transfer circuit is filled with a heat transfer material, and at least a part of the heat transfer circuit is exposed through the hollow part. The main engine includes a casing, a fin structure, a fan device and a blocking structure. The housing is provided with a circuit board with heating components; the fin structure is disposed on the heating component; the fan device is disposed in the housing and corresponds to the fin structure; the blocking structure is disposed in the housing to form a flow channel, and the fin structure is located in the flow channel . The flow passage includes two ends, respectively connected to the fan device and the opening of the casing. When the display device is rotated relative to the main body to assume an open state, the opening corresponds to the hollow part, so that the airflow generated by the fan device can take away the heat of the fin structure through the flow channel, and guide it to the heat transfer circuit through the opening, so as to utilize this The display device dissipates heat.

In an embodiment of the present invention, the blocking structure is tightly connected to the casing or the circuit board, so as to prevent the airflow generated by the fan device from leaking from the blocking structure into the casing.

In an embodiment of the present invention, the display device further includes a shielding member, and when the display device is rotated relative to the host to assume a closed state, the opening of the casing is shielded by the shielding member.

In one embodiment of the present invention, the barrier structure is polyester film or foam.

In an embodiment of the present invention, the fin structure includes a plurality of fins arranged side by side, and the two adjacent fins are spaced apart to form a plurality of flow channels.

In an embodiment of the present invention, each of the fins is a curved fin, so that each of the flow channels forms a curved flow channel.

In an embodiment of the present invention, the blocking structure cooperates with the fin structure so that the fluid channel forms a curved channel.

In an embodiment of the present invention, the heat transfer material is a phase change material.

In an embodiment of the present invention, the display device further includes a heat sink, and the heat sink is in direct contact with the heat transfer circuit to provide a large-area heat dissipation effect.

Through the design of the utility model, the heat generated by the host is transferred and guided to the display device by convection, and then the heat transfer circuit is used to contact large-area heat sinks such as the metal shell of the display device to provide good heat dissipation effect. In addition, there is no need to set any heat dissipation holes except the opening of the chassis body; and no matter when the display device is opened or closed relative to the host, the opening of the chassis body will not be exposed to keep the portable electronic device. Overall consistency and beauty in appearance.

Description of drawings

Fig. 1 is a partial schematic view of a portable electronic device of the present invention;

Fig. 2 is a schematic cross-sectional view of the portable electronic device of the present invention along the line segment A-A1 in Fig. 1;

Fig. 3 is a schematic diagram showing an open state of the portable electronic device of the present invention;

Fig. 4 is a schematic diagram showing a closed state of the portable electronic device of the present invention;

Fig. 5 is a schematic diagram showing another embodiment of the portable electronic device of the present invention in an open state;

FIG. 6 is a schematic view of another embodiment of the portable electronic device of the present invention in a closed state.

Among them, reference signs:

Portable electronic device 1, 1a host 10

Shell 11 Opening 111

Fin Structure 12 Fin 121

Runner 122 Fan unit 13

Barrier Structure 14 Circuit Board 15

Heating component 151 input/output port 16

Display device 20, 20a Heat transfer loop 21

Hollow part 22 Heat sink 23

Shroud 24 Flow channel O

Line segment A-A1

Detailed ways

In order to understand the technical content of the present utility model, the preferred embodiments are particularly described as follows.

Please refer to FIG. 1 , which is a partial schematic view of the portable electronic device 1 of the present invention. In one embodiment of the utility model, the utility model is mainly applied to portable electronic devices with clamshell structure design, such as notebook computers, mini computers, etc., but the utility model is not limited thereto, and can also be applied to In other portable electronic devices with similar structure. It should be noted that, in order to clearly show the relevant component configuration of the portable electronic device 1 of the present invention, most of the structure of the upper cover of the housing 11 of the host 10 is omitted in FIG. 1 , which is hereby described.

As shown in FIG. 1 , the portable electronic device 1 includes a host 10 and a display device 20 , and the host 10 and the display device 20 are pivotally connected to each other so that the display device 20 can rotate relative to the host 10 . In this embodiment, when the display device 20 is rotated relative to the host 10 so that the display device 20 is superimposed on the host 10, the portable electronic device 1 presents a closed state; and when the display device 20 is rotated relative to the host 10 When an angle (for example, between 90 degrees and 120 degrees) is formed between the display device 20 and the host 10 , the portable electronic device 1 is in an open state.

The display device 20 includes a heat transfer circuit 21 , a hollow portion 22 and a heat sink 23 . The heat transfer circuit 21 is disposed inside the display device 20 , and the heat transfer circuit 21 directly contacts the heat sink 23 for contact heat exchange. The heat transfer loop 21 has a heat transfer material to provide functions of heat transfer and heat exchange. In this embodiment, the heat transfer material can be a phase change material, such as a liquid that can boil at a low temperature, which can provide better heat absorption and heat release effects through the phase change conversion between liquid and gas, and it has Fluid properties can also enhance the effect of heat transfer, but the present invention is not limited thereto.

The display device 20 further includes a hollow portion 22 and a heat sink 23 . The hollow portion 22 is located on the side of the display device 20 adjacent to the pivot connection with the host 10 , and the hollow portion 22 is a hollow groove recessed inward from the surface of the display device 20 . At least a part of the heat transfer circuit 21 located in the display device 20 corresponds to the hollow groove, so that part of the heat transfer circuit 21 will be exposed through the hollow part 22, so as to facilitate heat convection transfer between the host 10 and the display device 20 .

The heat sink 23 is located on the side opposite to the display panel of the display device 20 , and the heat sink 23 directly contacts the heat transfer circuit 21 . The heat sink 23 provides a large-area heat dissipation plane and contacts with the outside air to achieve heat dissipation. In this embodiment, the heat sink 23 is the entire metal back cover of the display device 20 , but the present invention is not limited thereto.

Please refer to Figure 1 and Figure 2 together below. FIG. 2 is a schematic cross-sectional view of the portable electronic device 1 of the present invention along the line A-A1 in FIG. 1 . As shown in Figures 1 and 2, the host 10 includes a housing 11, a fin structure 12, a fan device 13, a blocking structure 14 and a circuit board 15, wherein the fin structure 12, the fan device 13, the blocking structure 14 and the circuit board 15 All are arranged in the housing 11. The circuit board 15 is provided with heat-generating components 151 that generate heat when a large number of calculations are performed, such as a central processing unit (CPU), a graphics processing unit (GPU), and the like. The fin structure 12 is disposed on the corresponding heating element 151 of the circuit board 15 to assist the heating element 151 to dissipate heat. The fan device 13 is disposed corresponding to the position of the fin structure 12 , so that the airflow generated by the fan device 13 takes away the heat on the fin structure 12 .

The fin structure 12 includes a plurality of fins 121 arranged side by side, wherein there is a distance between two adjacent fins 121, so that the fin structure 12 forms a plurality of flow channels 122 through the plurality of fins 121 for the fan device 13 The resulting airflow passes and provides a guiding effect of the airflow. In this embodiment, each fin 121 is a curved fin to form a plurality of curved flow channels 122 arranged side by side, thereby changing the direction of air flow, but the present invention is not limited thereto. Depending on the design and location of components, each fin 121 can also be a linear fin or adopt other forms.

The blocking structure 14 is disposed in the casing 11 and tightly connected to the casing 11 or/and the circuit board 15 according to different designs to form a flow channel O to isolate the flow channel from other internal spaces of the casing 11 . The flow channel O formed by the blocking structure 14 includes two ends, one end is connected to the air outlet of the fan device 13 , and the other end is connected to an opening 111 of the casing 11 . The opening 111 is located on a side of the casing 11 adjacent to the pivot connection with the display device 20 , and is used to correspond to the hollow portion 22 of the display device 20 . That is to say, except for the channel openings at the two ends of the flow channel O, the airflow flowing in the flow channel O will not leak from the flow channel O to other internal spaces of the housing 11 other than the flow channel O. The fin structure 12 is located in the flow channel O. As shown in FIG.

In this embodiment, the blocking structure 14 adopts two corresponding blocking pieces, each extending from the air outlet of the fan device 13 to the opening 111 of the casing 11, and the upper and lower ends of each blocking piece are connected to the casing 11 and the circuit board. 15 are tightly connected to maintain the isolation effect between the inside of the flow channel O and the outside. The blocking structure 14 is also arranged in accordance with the bending direction of the plurality of fins 121 of the fin structure 12 , so that the flow channel forms a curved flow channel to maintain the smoothness of the air flow. The blocking structure 14 can be made of polyester film (Mylar) or foam material (sponge) with sealing and insulating effects, but the present invention is not limited thereto.

Please refer to FIG. 1 and FIG. 3 together below. FIG. 3 is a schematic diagram of the portable electronic device 1 of the present invention in an open state. As shown in Figures 1 and 3, when the display device 20 of the portable electronic device 1 of the present invention is rotated to the open state relative to the host 10 (for example, the display device 20 and the host 10 form an angle of 90 degrees to each other), the display The position of the hollow part 22 of the device 20 corresponds to the position of the opening 111 of the casing 11 . Therefore, when the portable electronic device 1 of the present invention is opened, the opening 111 of the housing 11 will be covered by the display device 20 and will not be exposed.

At this time, the airflow generated by the fan device 13 operating in the host 10 can be guided from the fan device 13 to the opening 111 of the casing 11 through the flow channel O formed by the blocking structure, and the airflow will flow in the flow channel O. Pass through the fin structure 12 and take away the heat conducted by the heating element to the fin structure 12; then the airflow will pass through the opening 111 and blow to the hollow part 22 of the display device 20, so that the heat transfer circuit 21 exposed in the hollow part 22 and the The hot air flow blown from the host 10 generates heat exchange. According to the characteristics of the heat transfer material in the heat transfer circuit 21 , the heat is conducted to the heat sink 23 of the display device 20 through the circuit design, so as to dissipate heat in a large area through the heat sink 23 .

Please refer to FIG. 4 below, which is a schematic view of the portable electronic device 1 of the present invention in a closed state. As shown in FIG. 4 , generally speaking, when the portable electronic device 1 is in a closed state, most of the host 10 is turned off or in a low-load state. Too much heat will be generated, so the opening 111 of the casing 11 can be directly used as the air outlet of the host 10 to discharge the hot air to achieve the cooling effect of the host 10 .

Through the design of this embodiment, the portable electronic device 1 of the present invention is mounted on the casing 11 of the host 10, except for the opening 111 on the rear side, without any additional cooling holes, so as to achieve the cooling effect of the host 10 ; and the host 10 can also use the input/output port 16 (as shown in Figure 1 ) arranged on the side of the housing 11 as an air intake channel, and no additional air intake holes are required to maintain the consistency of the appearance of the host 10 and beauty.

Please refer to FIG. 5 and FIG. 6 together below. FIG. 5 is a schematic view of another embodiment of the portable electronic device 1a of the present invention in an open state; FIG. 6 is a schematic view of another embodiment of the portable electronic device 1a of the present invention in a closed state. As shown in FIG. 5 and FIG. 6 , in this embodiment, the display device 20 a further includes a shield 24 , which is located on a side of the display device 20 adjacent to the pivot connection with the host 10 and is disposed corresponding to the opening 111 of the casing 11 .

As shown in FIG. 5 , when the display device 20 a is rotated relative to the host 10 to assume an open state, the shield 24 can move below the casing 11 of the host 10 as the display device 20 a rotates.

As shown in FIG. 6, when the display device 20a rotates from the open state to the closed state relative to the host 10, the shield 24 will move along with the rotation of the display device 20a; until the portable electronic device 1a is closed state, the shielding member 24 will move to the front of the opening 111 of the housing 11 , and at this time, the shielding member 24 can shield the opening 111 . Therefore, when the portable electronic device 1 is in the closed state, the opening 111 of the casing 11 will also be blocked by the shielding member 24 and will not be exposed, so that the appearance consistency of the portable electronic device 1 can be maintained, making the present In any state of the portable electronic device 1 of the utility model, except for the input/output port on the side of the housing 11 , there is no possibility of any heat dissipation holes being exposed.

Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but These corresponding changes and deformations should all belong to the protection scope of the appended claims of the present utility model.

Claims (9)

1. a portable electronic devices is characterized in that, comprising:

Display device comprises:

Heat transfer circuit is arranged in this display device, fills heat transfer material in this heat transfer circuit; And

Hollow-out parts, at least a portion of this heat transfer circuit exposes by this hollow-out parts; And

Main frame articulates each other with this display device, and this main frame comprises:

Housing arranges the circuit board with heat generating component;

Fin structure is arranged on this heat generating component;

Fan assembly is arranged in this housing and to should fin structure; And

Barrier structure be arranged in this housing to form flow channel, and this fin structure is positioned at this flow channel; This flow channel comprises two ends, is connected to the opening of this fan assembly and this housing respectively;

Wherein when this display device rotates to present opening with respect to this main frame, this opening is to should hollow-out parts, the air-flow that makes this fan assembly produce can be taken away the heat of this fin structure via this flow channel, and be directed to this heat transfer circuit by this opening, dispel the heat to utilize this display device.

2. portable electronic devices as claimed in claim 1 is characterized in that, this barrier structure closely connects this housing or this circuit board, to prevent that air-flow that this fan assembly produced is in this barrier structure leaks to this housing.

3. portable electronic devices as claimed in claim 1 is characterized in that, this display device also comprises covering, when this display device rotates to present closure state with respect to this main frame, blocks this opening of this housing by this covering.

4. portable electronic devices as claimed in claim 1 is characterized in that, this barrier structure is mylar or foam.

5. portable electronic devices as claimed in claim 1 is characterized in that, this fin structure comprises a plurality of fins that are arranged side by side, and this adjacent two fin pitch has spacing, to form a plurality of runners.

6. portable electronic devices as claimed in claim 5 is characterized in that, respectively this fin is the bending fin, makes that respectively this runner forms the bending runner.

7. portable electronic devices as claimed in claim 6 is characterized in that, this barrier structure cooperates this fin structure so that this fluid passage forms curve tunnel.

8. portable electronic devices as claimed in claim 1 is characterized in that, this heat transfer material is phase-transition material.

9. portable electronic devices as claimed in claim 1 is characterized in that, this display device also comprises radiating piece, and this radiating piece directly contacts to provide large-area radiating effect with this heat transfer circuit.

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