TW201446123A - Electronic device - Google Patents

Abstract

An electronic device comprising a base, a first shell, and a heat insulating plate is provided. A fan and a heat source are disposed at the base. The first shell is disposed at the base and covers the fan and the heat source. The heat insulating plate is disposed at one side of the first shell facing the heat source. An air insulating space is between the heat insulating plate and the first shell so that a heat insulating layer is formed. Also, an air layer is formed between the heat insulating layer and the base. The heat insulating layer prevents the transfer of the heat generated by the heat source. An air flow induced by the fan passes through air layer so as to dissipate the heat generated from the heat source.

Description

Electronic device

The present invention relates to an electronic device, and more particularly to an electronic device having an airtight space and a gas flow space.

With the development of information technology, computers have become an indispensable tool in modern life. From the early desktop computers to the current notebook computers, they are very popular with users.

In terms of a notebook computer, its portability features are very popular. Therefore, the user has a higher demand for the appearance, function, and comfort of the notebook.

Since various heating elements in the notebook computer are collectively disposed in the casing of the notebook computer, the heat generated by the heating element is easily transmitted to the surface of the casing of the notebook computer, causing discomfort to the user.

Therefore, how to design an electronic device to solve the problem of discomfort caused by the heat generated by the heat source of the notebook computer becomes a problem that the designer needs to solve.

In view of the above problems, the present invention relates to an electronic device for solving the problem of the user's discomfort caused by the heat generated by the heat source in the notebook computer in the prior art.

An electronic device according to an embodiment of the invention includes a base, a first cover member and a heat shield. A fan and a heat source are arranged on the base. The first shell member is disposed on the base and covers the fan and the heat source. The heat shield is disposed on a side of the first shell facing the heat source. An airtight space is formed between the heat shield and the first shell member to form a heat insulating layer, and an air flow space is formed between the heat shield panel and the base. The insulating layer blocks the transfer of thermal energy generated by the heat source. The airflow space is used by one of the fans to circulate the airflow to remove the heat generated by the heat source.

According to the electronic device disclosed in the above embodiments of the present invention, since the first case member and the heat insulating plate have an airtight space, the air in the airtight space does not circulate with the air outside the electronic device. Therefore, the air in the airtight space can serve as a heat insulating layer, and the heat energy generated by the heat source can be insulated from the heat insulating plate to the first case member. In addition, since the airtight space can reduce the heat transferred from the heat source to the first case member via the heat shield, the heat generated by the heat source can be limited to the air flow space. In this way, the heat generated by the heat source can be removed by circulating the airflow in the airflow space. Thereby, the problem that the heat generated by the heat source in the notebook computer in the prior art causes discomfort to the user is solved.

The above description of the present invention and the following description of the embodiments of the present invention are intended to illustrate and explain the principles of the invention.

5‧‧‧Electronic devices

10‧‧‧Base

100‧‧‧fan

110‧‧‧ motherboard

112‧‧‧heat source

20‧‧‧ first shell

200‧‧‧ board

202‧‧‧ bearing surface

204‧‧‧Fankou

210‧‧‧Side wall

212‧‧‧ slots

30‧‧‧ Thermal insulation board

300‧‧‧floor

310‧‧‧ side panels

320‧‧‧Retaining wall

322‧‧‧ gap

40‧‧‧Second shell

50‧‧‧ airtight space

60‧‧‧ airflow space

70‧‧‧Pseudo-card

72‧‧‧ openings

74‧‧‧ Diversion wall

FIG. 1A is a perspective view of an electronic device according to an embodiment of the invention.

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

Fig. 2 is a cross-sectional view showing a part of the structure of the electronic device of Fig. 1A.

Fig. 3A is a partial exploded view of the electronic device of Fig. 1A.

FIG. 3B is a partial structural diagram of the electronic device of FIG. 1A.

Fig. 3C is a side view showing a part of the structure of the electronic device of Fig. 1A.

Fig. 3D is a partial structural top view of the electronic device of Fig. 1A.

The detailed features and advantages of the present invention are set forth in the Detailed Description of the Detailed Description of the <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> </ RTI> <RTIgt; The objects and advantages associated with the present invention can be readily understood by those skilled in the art. The following examples are intended to describe the present invention in further detail, but are not intended to limit the scope of the invention.

First, please refer to FIG. 1A, FIG. 1B and FIG. 2, FIG. 1A is a perspective view of an electronic device according to an embodiment of the invention, and FIG. 1B is an exploded view of the electronic device of FIG. Figure 1 is a cross-sectional view showing a portion of the electronic device of Figure 1A. The electronic device 5 includes a base 10, a first cover member 20, and a heat shield 30. In this embodiment and other embodiments, the electronic device 5 further includes a second shell member 40. In the following description, a notebook computer will be exemplified as the electronic device 5.

In this embodiment and some other embodiments, the base 10 is provided with a fan 100 and a heat source 112 disposed on a motherboard 110. The base 10 is, for example but not limited to, a bottom case of a main body of a notebook computer. The heat source 112 is, for example, a central processing unit in a notebook computer or other electronic component that generates heat. The fan 100 is used for drawing cold air from the outside or extracting hot air from the electronic device 5, thereby maintaining the temperature in the electronic device 5, so as to prevent the electronic device 5 from malfunctioning or being damaged due to excessive temperature.

The first case member 20 is disposed on the base 10, and the first case member 20 covers the fan 100 and the heat source 112. In detail, the first case member 20 includes a plate body 200 and a side wall 210 surrounding the board body 200. The board body 200 has a carrying surface 202 for providing an input device, such as a keyboard, for providing a function for the user to input a message. In addition, the board 200 also has a fan port 204 on the fan 100, and the side wall 210 has a slot 212, and the slot 212 corresponds to the fan port 204. The fan port 204 is for providing air into and out of the opening of the electronic device 5, and the slot 212 can be a socket of a Secure Digital Card (SD Card), and the user can insert a secure digital card into the slot. The slot 212 provides additional functionality to the electronic device 5.

The heat shield 30 is disposed on one side of the first case 20 facing the heat source 112, and the heat shield 30 is interposed between the base 10 and the first case 20. In more detail, the heat shield 30 is located between the heat source 112 and the first shell member 20. The heat shield 30 includes a bottom plate 300, a side plate 310, and a retaining wall 320.

The side panel 310 is erected on the bottom panel 300, and the side panel 310 extends from the end edge of the bottom panel 300. The one end of the side plate 310 away from the bottom plate 300 is attached to the first case member 20 . As a result, an airtight space 50 (shown in FIG. 2) is formed between the bottom plate 300, the side plate 310, and the first case member 20, and the air in the airtight space 50 is not in phase with the air outside the electronic device 5. Circulation. Since the air has a lower heat transfer coefficient, the air in the airtight space 50 can serve as a heat insulating layer. Thereby, the heat transferred from the heat insulating panel 30 to the first shell member 20 can be reduced, so as to prevent the temperature of the surface of the first shell member 20 from being heated by the heat source 112.

The retaining wall 320 is erected on a side of the bottom plate 300 away from the first case member 20, that is, the side of the bottom plate 300 opposite to the side plate 310, and the retaining wall 320 extends from the end edge of the bottom plate 300. An air flow space 60 is formed between the retaining wall 320 and the base 10. The air in the air flow space 60 can circulate with the air outside the electronic device 5, that is, the air outside the electronic device 5 can enter and exit the airflow space 60 in the electronic device 5. In addition, since the airtight space 50 can reduce the heat transferred from the heat source 112 to the first case member 20 via the heat shield plate 30, the airtight space 50 can confine the heat generated by the heat source 112 to the air flow space 60.

In this embodiment, the retaining wall 320 has at least one notch 322 therein, and the notch 322 is interposed between the slot 212 and the fan port 204.

The second case member 40 is stacked on the first case member 20, and the first case member 20 is interposed between the second case member 40 and the heat insulation plate 30. Wherein, the second shell member 40 is, for example, an aluminum sheath which is an appearance member of the first shell member 20, thereby beautifying the appearance of the first shell member 20. Since the heat insulating layer formed by the air in the airtight space 50 and the heat insulating panel 30 can reduce the heat generated by the heat source 112 to the first shell member 20, the heat transfer generated by the heat source 112 can be further reduced to the second shell member 40. The surface. In this way, when the user's wrist is placed on the second case member 40 to perform an input operation on the keyboard, the problem that the user's discomfort is caused by the excessive temperature of the surface of the second case member 40 can be reduced.

Next, please refer to FIG. 2, FIG. 3A to FIG. 3D, FIG. 3A is a partial structural exploded view of the electronic device of FIG. 1A, and FIG. 3B is a partial structural view of the electronic device of FIG. 1A, and FIG. 3C is a schematic view of the electronic device. A side view of a partial structure of the electronic device of FIG. 1A, and FIG. 3D is a partial structural top view of the electronic device of FIG. 1A. In this embodiment and some other embodiments, the electronic device 5 further includes a pseudo card 70, and the pseudo card 70 is inserted into the slot 212. Thereby, the dummy card 70 can shield the slot 212 to reduce impurities such as dust from entering the electronic device 5, thereby causing malfunction or even damage of the electronic device 5. In addition, the dummy card 70 has an opening 72, the slot 212 revealing the opening 72 of the dummy card 70, and the opening 72 corresponds to the fan port 204, and the opening 72, the slot 212, the air flow space 60, and the wind The fan ports 204 are in communication with each other. In addition, in this embodiment and some other embodiments, the dummy card 70 further has a flow guiding wall surface 74 facing the opening 72, and the guiding wall surface 74 is, for example, an arcuate wall surface. Therefore, the dummy card 70 can provide a flow path for the airflow to allow outside cold air to enter and exit the electronic device 5.

When the fan 100 is in operation, the fan 100 can draw an external airflow A from the outside into the electronic device 5, and the airflow A enters the slot 212 through the opening 72 to flow into the airflow space 60. By the guiding of the guiding wall surface 74, the airflow A enters the fan port 204, thereby causing the airflow A to flow through the heat source 112 and the heat insulating plate 30 in the electronic device 5, so as to heat the heat generated by the heat source 112 and the heat insulating plate 30. The absorbed heat is taken out of the electronic device 5, so that the heat transferred to the first case member 20 and the second case member 40 can be further reduced, and the surface temperature of the first case member 20 and the second case member 40 can be prevented from being excessively high. problem. Wherein, the curved surface design of the flow guiding wall surface 74 can further improve the efficiency of the heat removal of the airflow A. Thereby, when the user operates the electronic device 5, the problem that the user's discomfort is caused by the excessive temperature of the first case member 20 and the second case member 40 can be avoided.

According to the electronic device disclosed in the above embodiments of the present invention, since the first case member and the heat insulating plate have an airtight space, the air in the airtight space does not circulate with the air outside the electronic device. Therefore, the air in the airtight space can serve as a heat insulating layer, and the heat energy generated by the heat source can be insulated from the heat insulating plate to the first case member. In addition, since the airtight space can reduce the heat transferred from the heat source to the first case member via the heat shield, the heat generated by the heat source can be limited to the air flow space. In this way, the heat generated by the heat source can be removed by circulating the airflow in the airflow space. Thereby, the problem that the heat generated by the heat source in the notebook computer in the prior art causes discomfort to the user is solved.

In addition, the opening of the dummy card located in the slot and the wall of the diversion wall The design allows the cold air from the outside to flow into the electronic device from the opening, which can further reduce the temperature of the first shell member and the second shell member.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

5‧‧‧Electronic devices

10‧‧‧Base

100‧‧‧fan

110‧‧‧ motherboard

112‧‧‧heat source

20‧‧‧ first shell

200‧‧‧ board

202‧‧‧ bearing surface

204‧‧‧Fankou

210‧‧‧Side wall

212‧‧‧ slots

30‧‧‧ Thermal insulation board

322‧‧‧ gap

40‧‧‧Second shell

Claims (7)

An electronic device comprising: a base having a fan and a heat source; a first cover member disposed on the base and covering the fan and the heat source; and a heat shield disposed on the first cover member Facing one side of the heat source, an airtight space is formed between the heat insulating plate and the first shell member to form a heat insulating layer, and an air flow space is formed between the heat insulating plate and the base, and the heat insulating layer blocks the heat source The transfer of generated thermal energy for the airflow generated by the fan to circulate to remove thermal energy generated by the heat source. The electronic device of claim 1, wherein the first casing comprises a plate body and a side wall surrounding the periphery of the plate body, the plate body having a fan port on the fan, the side wall having a wall The slot corresponds to the fan port, and the airflow flows into the electronic device through the slot, and is discharged outside the electronic device via the fan port. The electronic device of claim 2, further comprising a pseudo card inserted in the slot, the pseudo card having an opening, the slot revealing the opening, the opening corresponding to the fan port, the airflow passing through the The opening flows into the electronic device. The electronic device of claim 3, wherein the dummy card further has at least one flow guiding wall facing the opening. The electronic device of claim 2, wherein the heat shield comprises a bottom plate and a retaining wall, the retaining wall is erected on a side of the bottom plate away from the first shell member, the retaining wall having at least one gap, Between the slot and the fan port. The electronic device of claim 1, further comprising a second case member stacked on the first case member, and the first case member is interposed between the second case member and the heat shield plate. The electronic device of claim 1, wherein the heat shield comprises a bottom plate and a side plate standing on the bottom plate, and an end of the side plate away from the bottom plate is attached to the first shell member, the bottom plate, the side plate and the bottom plate The first shell member together forms the airtight space.