KR20050028995A - A cooling unit and cooling structure for portable computer using the same - Google Patents

Abstract

A cooling unit installed to a bay and a cooling structure for a portable computer using the same are provided to discharge heat generated from a CPU by using the cooling unit to be installed to the bay receiving an attachable device for the portable computer and enable a user to use the portable computer more efficiently by selectively installing the cooling unit according to a use state of the portable computer. A casing(22) forms an internal space and an air hole(26) at one side. A fan assembly(32) forms an air flow directing to the air hole at the internal space. A cooling fin(34) placed between the fan assembly and the air hole transfers the heat by passing the air flow formed in the fan assembly. A heat pipe(40) is thermally connected to the CPU at the outside by thermally connecting one side with the cooling fin and extending another side to the outside of the casing. The casing is attached/detached from the bay in a main body of the portable computer.

Description

A cooling unit and cooling structure for portable computer using the same}

The present invention relates to a portable computer, and more particularly to a heat dissipation unit for dissipating heat generated from the portable computer to the outside and a heat dissipation structure of the portable computer using the same.

The present invention relates to a portable computer which is carried by a user and used, and will be described with reference to what is called a notebook computer.

1 is an exploded perspective view of an exterior of a typical notebook computer. As shown in the drawing, the notebook computer 1 is mainly composed of a main body 3 and a display 5. The main body 3 is a substantially flat hexahedral plate shape, the upper surface is provided with a keyboard (7), the inside of the motherboard, CPU (CPU), memory, hard disk drive 9, optical disk drive 10 Various components constituting the notebook computer 1, such as a battery, are provided.

The hard disk drive 9 is removable, but is necessary for the operation of the notebook computer 1, and the optical disk drive 10 is not necessarily used, and the bay provided in the main body 3 (Not shown). When the optical disk drive 10 is not mounted in the bay, a separate device such as an auxiliary battery may be mounted and used.

The display unit 5 generally uses a liquid crystal panel, which is connected to the rear end of the main body 3 and is operated to be in close contact with or spread on the upper surface of the main body 3. The display unit 5 is formed in a plate shape of a substantially flat cube like the main body 3.

On the other hand, one side of the main body 3 is formed with a vent hole 11 for dissipating heat generated from the CPI of the main board to the outside. Through the air vent 11, the air flow containing the heat generated from the CMP is passed.

However, the prior art having the above configuration has the following problems.

In the case of CPI, which is used in portable products such as notebook computers, the power consumption increases to 96W. In order to achieve maximum performance, CfiU must release the heat generated properly. This requires heat dissipation using multiple fans.

However, when a plurality of fans are employed for smooth operation of the CAPI oil, too much space is required inside the main body part 3, and the size of the main body part 3 becomes too large, resulting in poor portability.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to provide a heat dissipation structure capable of more smoothly dissipating heat generated from CPI fluid of a portable computer to the outside.

Another object of the present invention is to be able to selectively employ a heat dissipation structure according to the use state of the portable computer.

According to a feature of the present invention for achieving the object as described above, the present invention has an inner space therein and the casing is formed with a ventilation hole on one side, the ventilation hole is installed in the inner space of the casing A fan assembly which forms an air flow to face the heat dissipation fin, a heat dissipation fin positioned between the fan assembly and the vent hole, and through which a heat flow is transmitted while the air flow formed by the fan assembly passes, one side is thermally connected to the heat dissipation fin, and the other side is And a heat pipe extending out of the casing and thermally connected to an external heat source.

The casing is detachably configured in a bay in which a separate device is detachable from the main body of the portable computer.

The casing further includes an intake hole through which outside air is sucked into the inner space.

According to another feature of the invention, the present invention is a casing configured to be detachably attached to the bay in which a separate device is detachable to the body portion of the portable computer, and provided inside the casing and thermally connected to the heat source of the body portion and And a heat dissipation unit for dissipating heat of the heat source.

According to another feature of the invention, the present invention is a main body portion provided with a heat source therein, a heat dissipation module mounted inside the main body portion for discharging the heat of the heat source to the outside of the main body portion, removable body type It is mounted to include a secondary heat dissipation unit for discharging the heat generated from the heat source to the outside.

Heat generated from the heat source is transferred to the heat pipe of the auxiliary heat dissipation unit through a connection heat pipe, and the connection heat pipe and the heat pipe are thermally connected by a joint.

The joint is a block made of metal, and a connection groove is formed to connect the heat pipes of the connection heat pipe and the auxiliary heat dissipation unit, respectively.

According to the heat dissipation unit of the present invention having such a configuration and the heat dissipation structure of the portable computer using the same, there is an advantage that the heat generated from the heat source of the portable computer can be discharged more smoothly in accordance with the operation state of the computer.

Hereinafter, a heat dissipation unit and a heat dissipation structure of a portable computer using the same according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a partial cutaway perspective view showing the configuration of a preferred embodiment of the heat dissipation unit according to the present invention.

According to this, the casing 22 forms the exterior of the heat dissipation unit 20. The casing 22 is made in the shape as shown in the figure, and is configured in the same way as the appearance of a removable device used in particular in a portable computer. In the present embodiment, the optical disk drive used in the portable computer is configured in the same manner as that of the optical disc drive, and the bay is provided in the main body of the portable computer.

A predetermined inner space 23 is formed inside the casing 22. The top surface of the casing 22 is formed by a top cover 24. When the top cover 24 is removed, the inner space 23 is exposed. Therefore, maintenance of components installed in the inner space 23 is possible in the state where the top cover 24 is separated.

One side of the casing 22 is formed with a ventilation hole 26. The vent hole 26 is to communicate the outside of the inner space 23 and the casing 22 to allow air to flow in and out. The connector portion 28 is provided on the other side of the casing 22, more specifically, a portion located inside the main body when the casing 22 is inserted into the main body of the portable computer. The connector unit 28 is electrically connected to the main board of the main body to receive power and control signals.

The fan housing 30 is installed in the inner space 23, and the fan assembly 32 is provided inside the fan housing 30. One side of the fan housing 30 is provided with a heat radiation fin 34 through which air flow formed by the fan assembly 32 passes. The heat dissipation fin 34 is formed of a material having a good heat transfer rate, and configured to penetrate the airflow passing through one side of the fan housing 30.

The heat pipe 40 is provided to be thermally connected to the heat dissipation fin 34. The heat pipe 40 has a working fluid therein to serve to transfer the heat generated from the heat source to the heat dissipation fin 34. The heat pipe 40 extends from the heat dissipation fin 34 to the outside of the casing 23 through the casing 22. The outer side of the casing 22 is provided with a connection portion 42 which is one end of the heat pipe 40. The connection part 42 is a part which is thermally connected to the heat source side in which heat to be emitted by the heat dissipation unit 20 is generated.

On the other hand, although not shown in the drawings, an intake hole may be formed on one side of the casing 22. The intake hole serves as a passage through which air is sucked into the inner space. Of course, even without the intake hole, air may be sucked into the inner space through various gaps or holes formed in the casing 22.

Next, Fig. 3 shows a schematic plan view of a preferred embodiment of the heat dissipation structure of the portable computer according to the present invention employing the heat dissipation unit shown in Fig. 2. As shown in the figure, inside the main body portion 50 of the portable computer, various components constituting the portable computer are installed.

First, a hard disk drive 52 is provided at one side of the main body 50. The hard disk drive 52 is a part for storing various programs and data. And the other side of the main body 50 is provided with a PCMCIA slot 56. The PCMCIA slot 56 is configured such that its inlet is opened to one side of the main body 50 so that the PCMCIA card (not shown) can be detached from the outside of the main body 50.

On the other hand, the bay 54 is formed on one side of the body portion 50. The bay 54 is, for example, a portion to which an apparatus such as an optical disk drive (not shown), a battery, or a heat dissipation unit 20 is mounted, and is opened to one side of the main body 50. The device mounted in the bay 54 is removable according to the needs of the user. Thus, a device desired by the user may be selectively mounted in the bay 54.

One side of the main board 50 of the main body 50 is equipped with CPU (CPU) (60). The CAPI 60 generates a large amount of heat during operation as a central processing unit of a portable computer.

A heat dissipation module 70 is provided to dissipate heat generated from the CAPI oil 60. The heat dissipation module 70 is provided adjacent to the CMP (60). The frame 71 forms a skeleton of the heat dissipation module 70. The frame 71 is preferably made of a metal having good heat transfer rate. One side of the frame 71 is fastened to the main board provided with the CAPI oil 60.

One side of the frame 71 is a heat dissipation fan assembly 73 is installed. The heat dissipation fan assembly 73 forms an airflow for dissipating heat more efficiently. One end of the frame 71 is provided with a heat radiation fin (75). The heat dissipation fins 75 are for effectively dissipating heat by relatively increasing the contact area with the airflow formed by the heat dissipation fan assembly 73.

 As shown in FIG. 3, the heat dissipation fin 75 is provided at a position adjacent to one side surface of the main body 50. One side of the body portion 50 facing the heat dissipation fin 75 is provided with a heat dissipation port (not shown), the air flow formed by the heat dissipation fan assembly 73 is discharged to the outside of the body portion 50 Be sure to

On the other hand, the frame 71 is provided with a heat pipe (77). The heat pipe 77 extends from the CPI 60, which is a heat source, to the heat dissipation fin 75. The heat pipe 77 serves to receive heat generated from the CPI 60 and to be transferred to the heat dissipation fin 75. A predetermined working fluid is provided inside the heat pipe 77 to perform heat transfer.

A connection heat pipe 80 is provided to transfer some of the heat generated from the CAPI oil 60 to the heat dissipation unit 20 installed in the bay 54. The connection heat pipe 80 extends in the direction of the bay 54 starting from the seed oil 60.

A joint 82 is provided at the end of the connection heat pipe 80. The joint 82 is formed of a material having a relatively good heat transfer rate, has a block shape of a substantially rectangular parallelepiped, and a connection hole into which the connection heat pipe 80 and the connection portion 42 of the heat dissipation unit 60 are inserted. 83) is formed. Of course, the connection heat pipe 80 may be integrally formed with the joint 82.

Hereinafter, the operation of the heat dissipation unit and the heat dissipation structure of the portable computer using the same according to the present invention having the configuration as described above in detail.

The heat dissipation unit 20 according to the embodiment of the present invention is selectively mounted on the bay 54 of the portable computer to efficiently discharge heat generated from the CPI 60 as a heat source.

That is, normally, the heat generated from the CAPI oil 60 is discharged using the heat dissipation module 70 built into the main body 50. That is, heat generated from the CPI 60 is transferred to the heat dissipation fin 75 through the heat pipe 77 and the frame 71. In the heat dissipation fin 75, heat exchange occurs while the airflow generated by the fan assembly 73 passes. In other words, heat is transferred from the heat dissipation fin 75 to the airflow, and the airflow is transmitted to the outside of the main body 50 to release heat.

On the other hand, it will be described that the heat dissipation unit 20 is mounted to the bay 54 to perform heat dissipation. The heat dissipation unit 20 is mounted in the bay 54 without mounting an optical disk drive or a battery. When the heat dissipation unit 20 is inserted into the bay 54, the heat dissipation unit 20 is electrically connected to the main board side through the connector part 28 to receive a control signal and power.

In addition, the connection portion 72 of the heat pipe 40 is inserted into the connection hole 83 of the joint 82. As a result, the heat pipe 40 is thermally connected to the connection heat pipe 80 through the joint 82.

In this state, when the CAPI oil 60 is operated, heat is generated, and the heat is discharged through the heat dissipation module 70. The heat transferred to the connection heat pipe 80 is discharged to the outside through the heat dissipation unit 20.

In more detail, the heat transferred to the connection heat pipe 80 is transferred from the joint 82 to the heat pipe 40 of the heat dissipation unit 20. The heat transferred to the heat pipe 40 is transferred to the heat dissipation fin 34.

In addition, the heat dissipation unit 20 is electrically connected to the main board through the connector unit 28 so that the fan assembly 32 is operated by a control signal and a power transmitted from the main board.

When the fan assembly 32 is operated, air is transferred into the fan housing 30 to pass through the heat dissipation fin 34 through the fan assembly 32. As such, the airflow passing through the heat dissipation fins 34 receives heat transferred to the heat dissipation fins 34 through the heat pipe 40 and is discharged to the outside through the vent hole 26.

Here, the air from the outside of the casing 22 or the air of the inner space 23 is transferred to the inside of the fan housing 30 provided with the fan assembly 32. In this case, a separate intake hole may be formed in the casing 22 so that air may be delivered from the outside, or air may be delivered through a gap formed in the casing 22.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

In the present invention, the shape of the casing 22 is configured to correspond to the shape of the bay 54 in which the optical disk drive or the like is installed, but it is not necessarily required, and may be configured to fit the bay of various shapes.

In addition, in the present invention, the heat dissipation unit 20 may radiate heat from the inside of the fan assembly 32 and the heat dissipation fin 34.

In the heat dissipation unit according to the present invention and the heat dissipation structure of the portable computer using the same, the heat dissipation unit that can be installed in the bay in which the removable device of the portable computer is mounted is constructed, and the CPI which is a heat source of the portable computer is used. It is intended to release the heat generated by.

Therefore, in the present invention, the heat dissipation can be made more smoothly, so that the portable computer can be used with relatively high performance, while using a relatively high performance.

In particular, since the heat dissipation unit can be selectively mounted and used according to the state in which the portable computer is used, the portable computer can be used more efficiently.

1 is an exploded perspective view showing the configuration of a typical portable computer.

Figure 2 is a partially cutaway perspective view showing the configuration of a preferred embodiment of a heat dissipation unit according to the present invention.

Figure 3 is a schematic plan view showing the configuration of a preferred embodiment of a heat radiation structure of a portable computer according to the present invention.

Figure 4 is a schematic perspective view showing a configuration connected to the joint constituting the embodiment shown in FIG.

Explanation of symbols on the main parts of the drawings

20: heat dissipation unit 22: casing

23: inside space 24: top cover

26: vent 28: connector

30: fan housing 32: fan assembly

34: heat sink fin 40: heat pipe

42: connecting portion 50: main body

52: hard disk drive 54: bay

56: PCMCIA card 60: CPI

70: heat dissipation module 71: frame

73: heat sink fin 75: heat sink fin

77: heat pipe 80: connection heat pipe

82: joint

Claims (8)

A casing having an inner space therein and having a ventilation hole formed at one side thereof; A fan assembly installed in the inner space of the casing and forming an air flow toward the vent hole in the inner space; A heat dissipation fin positioned between the fan assembly and the vent hole and configured to transmit heat while passing through the air flow formed by the fan assembly; The heat dissipation unit, characterized in that one side is thermally connected to the heat dissipation fins and the other side is extended to the outside of the casing, the heat pipe is thermally connected to an external heat source. The heat dissipation unit according to claim 1, wherein the casing is detachably configured in a bay in which a separate device is detachable from the main body of the portable computer. The heat dissipation unit according to claim 2, wherein the casing further includes an intake hole through which external air is sucked into the inner space. A casing configured to be detachably attached to a bay in which a separate device is detachable from a main body of the portable computer; And a heat dissipation unit provided inside the casing and thermally connected to a heat source of the main body unit to emit heat of the heat source. A main body having a heat source provided therein; A heat dissipation module mounted inside the main body to discharge heat of the heat source to the outside of the main body; A heat dissipation structure of a portable computer, characterized in that it comprises a secondary heat dissipation unit detachably mounted to the main body to discharge heat generated from a heat source. 6. The portable computer of claim 5, wherein heat generated from the heat source is transferred to the heat pipe of the auxiliary heat dissipation unit through a connection heat pipe, and the connection heat pipe and the heat pipe are thermally connected by a joint. Heat dissipation structure. The heat dissipation structure of a portable computer according to claim 6, wherein the joint is formed of a metal block, and a connection groove is formed to connect the heat pipes of the connection heat pipe and the auxiliary heat dissipation unit, respectively. 8. The heat dissipation structure of a portable computer according to any one of claims 5 to 7, wherein the auxiliary heat dissipation unit is any one of the heat dissipation units described in claim 1 to claim 8.