TW202243578A - Heat dissipation module and portable electronic device - Google Patents

Abstract

A heat dissipation module including a fan having a plurality of outlets, a baffle pivoted to the fan, a screw barrel, and a motor is provided. The baffle has a screw rod extending out of the fan, and the screw barrel is movably coupled to the screw rod. The motor connects and drives the screw barrel to move reciprocated along the screw rod, so as to rotate the baffle to open or close the outlet. A portable electronic device is also provided.

Description

Cooling Modules and Portable Electronic Devices

The invention relates to a cooling module and a portable electronic device.

With the continuous evolution of technology in the electronic field, the performance of the produced electronic components is also continuously improved. However, generally speaking, as the performance of electronic components improves, the heat generated by them will increase. The heat continuously accumulates on the electronic components and causes the temperature of the electronic components to rise. If the heat cannot be effectively removed from the electronic components to lower the temperature of the electronic components, the electronic components will crash or even be burned. Therefore, the problem generally faced by the electronics industry is not to improve performance, but how to effectively remove heat.

Generally speaking, the industry uses an air-cooled heat dissipation device to achieve heat removal. The air-cooled heat dissipation device generally includes a fan, heat dissipation fins, and heat pipes. The heat dissipation fins are located at the air outlet of the fan, and the heat pipes are connected to the heat source and the heat dissipation fins to transfer the heat from the heat source to the heat dissipation fins. When the fan is running, an airflow can be formed to flow through the heat dissipation fins, so that the airflow can exchange heat with the heat dissipation fins to dissipate the heat on the heat dissipation fins.

For notebook computers, with the improvement of computing performance, in order to achieve effective heat dissipation, it has gradually become normal and necessary to use fans with dual air outlets. It needs to be in a state of full power heat dissipation, but the existing fans with double air outlets do not have further technical means for this.

The invention provides a heat dissipation module for adjusting the corresponding heat dissipation performance in response to the operation mode of the portable electronic device.

The heat dissipation module of the present invention includes a fan, a baffle, a screw sleeve and a motor. The fan has multiple air outlets. The baffle is pivotally arranged on the fan and located at one of the air outlets, and the baffle has a screw extending out of the fan. The screw sleeve is movably coupled to the screw. The motor is connected to drive the screw sleeve to move back and forth along the screw, so as to rotate the screw to drive the baffle to open and close the air outlet.

The portable electronic device of the present invention includes a body, a plurality of fans and at least one switching component. The fan is a centrifugal fan arranged in the body, each fan has a plurality of air outlets, and the switching component is arranged at least one of the air outlets. The switch assembly includes a baffle plate, a screw sleeve and a motor. The baffle is pivotally arranged on the fan, and the baffle has a screw extending out of the fan. The screw sleeve is movably coupled to the screw. The motor is connected to drive the screw sleeve to move back and forth along the screw, so as to rotate the screw to drive the baffle to open and close the air outlet.

Based on the above-mentioned embodiments, in the heat dissipation module of the portable electronic device, the present invention sets a switching component at at least one of the multiple air outlets of the fan to control the opening and closing of the air outlet, and according to Control the air flow of the fan to adjust the cooling performance. In detail, the heat dissipation module sets a movable baffle at one of the air outlets of the fan, and through the corresponding configuration of the screw, screw sleeve and motor, the user can drive the baffle to open and close the air outlet of the fan . According to this, the user can adjust the air flow of the fan according to the operation mode of the portable electronic device, so that the fan can provide uniform cooling airflow at multiple air outlets, or close one of the air outlets to concentrate the airflow Increase the air flow at the remaining air outlets.

FIG. 1 is a top view of a portable electronic device according to an embodiment of the invention. Please refer to FIG. 1. In this embodiment, the portable electronic device 10 is, for example, a notebook computer. Here, only a simple schematic diagram of the notebook computer on the host computer is shown, that is, other components not related to this embodiment are temporarily It is omitted or can be known from the prior art without repeating it.

In this embodiment, the portable electronic device 10 includes a body 200 and a heat dissipation module HT, wherein the heat dissipation module is composed of a fan 110 and a switching component SW. It should be noted that the present embodiment does not limit the number of heat dissipation module HT, switch assembly SW, fan 110 and its air outlets, which can be adjusted accordingly according to the design conditions and usage requirements of the portable electronic device 10 . In this embodiment, two heat dissipation modules HT are placed on the left and right sides of the body 200 as an example, and each heat dissipation module HT has a dual-exit fan (fan 110 ) and a switch assembly SW.

1, the portable electronic device 10 also includes heat sources 210, 220 (such as CPU, GPU), heat pipes 230, 240, 250, and the heat dissipation module HT also includes a fin set 120, which includes A plurality of cooling fins 121 , 122 , 123 , 124 placed at the air outlet of the fan 110 . In this embodiment, the heat pipes 230, 240 are used to transfer the heat from the heat source 210 to the heat dissipation fins 121, 122, so that the fan 110 (left side in the figure) provides heat dissipation airflows F1, F2 to dissipate heat, and dissipate heat The airflows F1 , F2 can then be discharged out of the machine body 200 . Similarly, the heat pipes 230, 220 are used to transmit the heat of the heat source 220 to the heat dissipation fins 123, 124, so that the fans 110 (right side in the figure) are aligned to provide heat dissipation airflows F3, F4 for heat dissipation, and the heat dissipation airflows F3, F4 Then it can be discharged out of the body 200 .

FIG. 2 is a partially enlarged view of the heat dissipation module of the portable electronic device in FIG. 1 , where the upper cover of the fan is omitted to facilitate identification of its internal structure. Please refer to FIG. 1 and FIG. 2 at the same time. In this embodiment, the fan 110 is a centrifugal fan arranged in the body 200, each fan 110 has a plurality of air outlets E1, E2, and the switching assembly SW is arranged at at least one air outlet ( The switching assembly SW of this embodiment is configured at the air outlet E1). The switching assembly SW includes a baffle 130 , a screw sleeve 142 and a motor 141 . The baffle 130 is pivotally mounted on the fan 110 , and the baffle 130 has a first screw 133 extending out of the fan 110 . The screw sleeve 142 is movably coupled to the first screw 133 . The motor 141 is connected to drive the screw sleeve 142 to reciprocate along the first screw 133 , so that the baffle 130 is driven to open and close the air outlet E1 by the rotation of the first screw 133 .

FIG. 3 is a schematic diagram of the cooling module in FIG. 2 in another state. Please refer to FIG. 2 and FIG. 3 at the same time. In detail, the switching assembly SW of this embodiment further includes a bearing member 143, which is composed of a support frame 143a and a guide rod 143b erected on the support frame 143a. The fan 110 has a plurality of side walls to form the air outlets E1 and E2. The baffle 130 includes a board body 131 and a pivot 132 adjacent to each other, and the board body 131 is rotatably mounted on two of the side walls by the pivot shaft 132. 111A, 111B so that the plate body 131 is located at one of the air outlets (the air outlet E1 in this embodiment), the first screw 133 of the aforementioned baffle 130 is set coaxially with the pivot 132 and rotates synchronously, and in this embodiment The first screw rod 133 is substantially also mounted on the support frame 143a and located at one side of the guide rod 143b.

Moreover, the motor 141 of this embodiment includes a driving body 141a and a second screw rod 141b, which are mounted on the body 143a and located at one side of the guide rod 143b. The threaded sleeve 142 includes a sliding body 142a and threaded portions 142b, 142c extending from opposite sides of the sliding body 142a, wherein the sliding body 142a is movably coupled to the guide rod 143b, and the threaded portion 142b is movably coupled to The second screw 141 b and the screw connection portion 142 c are movably sleeved on the first screw 133 of the aforementioned baffle 130 . Here, the first screw rod 133, the guide rod 143b and the second screw rod 141b are parallel to each other, and the inner surfaces of the threaded parts 142b, 142c have internal threads capable of engaging with the second screw rod 141b and the first screw rod 133 respectively (due to the angle of view). not shown), and substantially the second screw 141 b of the motor 141 and the first screw 133 of the baffle 130 are opposed to each other via the screw sleeve 142 . Therefore, according to the screw connection relationship between the first screw rod 133, the second screw rod 141b and the screw sleeve 142 and their corresponding relationship on the support frame 143a, when the motor 141 rotates the second screw rod 141b, the screw sleeve will be formed. The cylinder 142 moves along the guide rod 143b, and the movement of the screw sleeve 142 can also drive the first screw 133 to rotate, so that the plate body 131 of the baffle 130 is smoothly opened and closed. Accordingly, the user can smoothly drive the baffle 130 to rotate through the motor 141 to open and close the air outlet E1 . As shown in FIG. 2 , the baffle 130 closes the air outlet E1 , and as shown in FIG. 3 , the baffle 130 opens the air outlet E2 . The control mode of the switching component SW is not limited here, and it can be adjusted by the user, or can be adjusted by the control system (not shown) of the portable electronic device 10 according to the temperature in the body 200 or the heat sources 210, 220. It can be adjusted according to the fever and operating status.

Please refer to FIG. 1 again. This embodiment can smoothly control the opening and closing of the air outlet of the fan 110 (the air outlet E1 shown in FIG. 2 and FIG. 3 ) by switching the component SW, which is also equivalent to separately controlling the heat dissipation in FIG. 1 The presence or absence of the airflows F1 and F3 can be changed according to the operation mode of the portable electronic device 10 to provide corresponding heat dissipation performance. This embodiment is only an example, that is, in other unillustrated embodiments, the designer can configure switching components at the air outlets that need to be adjusted for opening and closing.

To sum up, in the above-mentioned embodiments of the present invention, in the heat dissipation module of the portable electronic device, a switching component is provided at least one of the plurality of air outlets of the fan to activate the air outlet. The closed control is used to control the air flow of the fan to adjust the heat dissipation performance. In detail, the heat dissipation module sets a movable baffle at one of the air outlets of the fan, and through the corresponding configuration of the screw, screw sleeve and motor, the user can drive the baffle to open and close the air outlet of the fan . According to this, the user can adjust the air flow of the fan according to the operation mode of the portable electronic device, so that the fan can provide uniform cooling airflow at multiple air outlets, or close one of the air outlets to concentrate the airflow Increase the air flow at the remaining air outlets.

10: Portable Electronic Devices 110: fan 111A, 111B: side walls 120: fin group 121, 122, 123, 124: cooling fins 130: Baffle 131: board body 132: Pivot 133: the first screw 141: motor 141a: drive body 141b: second screw 142: screw sleeve 142a: sliding body 142b, 142c: threaded joints 143: Carrier 143a: Bracket 143b: guide rod 200: body 210, 220: heat source 230, 240, 250: heat pipe E1, E2: air outlet F1, F2, F3, F4: cooling airflow HT: heat dissipation module SW: switch component

FIG. 1 is a top view of a portable electronic device according to an embodiment of the invention. FIG. 2 is a partially enlarged view of the heat dissipation module of the portable electronic device shown in FIG. 1 . FIG. 3 is a schematic diagram of the cooling module in FIG. 2 in another state.

10: Portable Electronic Devices

110: fan

120: fin group

121, 122, 123, 124: cooling fins

130: Baffle

141: motor

142: screw sleeve

143: Carrier

200: body

210, 220: heat source

230, 240, 250: heat pipe

F1, F2, F3, F4: cooling airflow

HT: heat dissipation module

SW: switch component

Claims (15)

A cooling module, comprising: A fan with multiple air outlets; a baffle, pivotally mounted on the fan and located at one of the air outlets, the baffle has a first screw extending out of the fan; a screw sleeve movably coupled to the first screw; and A motor is connected to and drives the screw sleeve to reciprocate along the first screw to rotate the first screw to drive the baffle to open and close the air outlet. The cooling module according to claim 1, wherein the motor has a second screw, and the screw sleeve has two threaded parts, one of which is movably coupled to the first screw, and the other The threaded portion is movably coupled to the second screw, and the motor drives the screw sleeve to move by rotating the second screw. The heat dissipation module as claimed in claim 2, wherein the first screw is parallel to the second screw. The cooling module as described in request item 1, further comprising: a frame on which the motor is mounted; and A guide rod is arranged on the support frame, and the screw sleeve is movably arranged on the guide rod. The heat dissipation module according to claim 4, wherein the motor has a second screw, and the screw sleeve has two threaded parts located on opposite sides of the guide rod, one of which is movably coupled On the first screw, another threaded portion is movably coupled to the second screw, and the motor drives the screw sleeve to reciprocate along the guide rod by rotating the second screw. The heat dissipation module as claimed in claim 5, wherein the first screw, the guide rod and the second screw are parallel to each other. The cooling module as claimed in claim 1, wherein the fan is a centrifugal fan. The heat dissipation module according to claim 1, wherein the fan has a plurality of side walls to form the air outlets, the baffle includes a plate body and a pivot shaft adjacent to each other, and the plate body is connected by the pivot shaft The board is erected between two of the side walls so that the board is located at one of the air outlets, and the first screw is arranged coaxially with the pivot. A portable electronic device comprising: a body; A plurality of fans are centrifugal fans, arranged in the body, and each fan has a plurality of air outlets; At least one switching component is arranged at at least one air outlet, and the switching component includes: a baffle pivotally mounted on the fan, the baffle having a first screw rod extending out of the fan; a screw sleeve movably coupled to the first screw; and A motor is connected to and drives the screw sleeve to reciprocate along the first screw to rotate the first screw to drive the baffle to open and close the air outlet. The portable electronic device as claimed in item 9, wherein the motor has a second screw, and the screw sleeve has two threaded parts, one of which is movably coupled to the first screw, Another threaded portion is movably coupled to the second screw, and the motor drives the screw sleeve to move by rotating the second screw. The portable electronic device as claimed in claim 10, wherein the first screw is parallel to the second screw. The portable electronic device as described in claim 9, wherein the switching component further includes: A support frame is arranged in the machine body, and the motor is arranged on the support frame; and A guide rod is arranged on the support frame, and the screw sleeve is movably arranged on the guide rod. The portable electronic device as claimed in claim 12, wherein the motor has a second screw, and the screw sleeve has two threaded parts located on opposite sides of the guide rod, one of which is movably Coupled to the first screw, another screw part is movably coupled to the second screw, and the motor drives the screw sleeve to reciprocate along the guide rod by rotating the second screw. The portable electronic device as claimed in claim 13, wherein the first screw, the guide rod and the second screw are parallel to each other. The portable electronic device as claimed in claim 9, wherein the fan has a plurality of side walls to form the air outlets, the baffle includes a board and a pivot adjacent to each other, and the board is connected by the The pivot is erected between the two side walls so that the board is located at one of the air outlets, and the first screw is coaxially arranged with the pivot.

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