TWI547234B - Electronic device and heat dissipation assembly thereof - Google Patents

Description

Electronic device and its heat dissipation component

The present invention generally relates to an electronic device and a heat dissipating component thereof. Specifically, the present invention relates to an electronic device having a heat dissipating air vent and a heat dissipating component thereof.

Thermal design is one of the important factors that affect the performance of electronic devices. Conventional electronic devices usually use a heat dissipating component such as a fan or a heat sink to match a heat dissipating air opening provided in the housing to achieve heat dissipation. The heat dissipating air outlet of the conventional electronic device is usually a hole opened at the side and the bottom of the casing, and the flow of the hot air discharged is fixed, and the heat dissipation efficiency cannot be adjusted according to the performance of the operation of the electronic device.

Moreover, as the performance of the sub-device is continuously improved, adding or increasing the heat dissipating air outlet on the casing is one of the means for improving the heat dissipation efficiency. However, when the area of the heat dissipating air opening is larger and larger, not only the aesthetic appearance of the electronic device is affected, but also dust, moisture and the like are inevitably entered into the electronic device casing, thereby affecting the operation of the electronic device.

Therefore, how to effectively improve the heat dissipation efficiency and take into account the aesthetic appearance is one of the important topics for the heat dissipation design of electronic devices.

An object of the present invention is to provide an electronic device and a heat dissipating assembly thereof, which have a heat dissipating air vent which can be opened and closed to enhance the aesthetic appearance and enhance the dustproof effect.

Another object of the present invention is to provide an electronic device and a heat dissipating component thereof, which can control the opening and closing of the blade according to the operating performance of the electronic device to adjust the heat dissipation efficiency.

In one embodiment, the present invention provides an electronic device including a housing and a heat dissipating assembly, wherein the housing has an opening, and the corresponding opening of the heat dissipating component is disposed on the housing. The heat dissipating component comprises a blade unit, a driving unit and a returning unit, wherein the housing has an opening; the blade unit is disposed corresponding to the opening, the blade unit comprises at least one blade and a connecting rod, and the at least one blade is movably coupled to the connecting rod to select with respect to the opening The driving unit is disposed corresponding to the connecting rod, the driving unit comprises a body portion and a driving portion, and the driving portion can be extended or retracted relative to the body portion; the returning unit is disposed corresponding to the connecting rod for providing a restoring force, wherein when driving When the portion is extended, the driving portion pushes the connecting rod to move in the first direction and drives at least one blade to open to expose at least a part of the opening; when the driving portion is retracted, the returning unit provides a restoring force to move the connecting rod in the second direction and drive at least one The vanes are closed to shield the opening, and the second direction is opposite to the first direction.

In one embodiment, at least one of the blades has a sliding slot, and the connecting rod has at least one coupling post, and at least one coupling column is correspondingly inserted into the sliding slot of the at least one blade. When the pushing rod moves, the coupling column slides along the sliding column. The slot moves.

In one embodiment, the chute is disposed obliquely with respect to the direction of movement of the link.

In one embodiment, the connecting rod has a driven portion, and the driven portion and the at least one coupling post are respectively disposed on opposite sides of the connecting rod, and when the driving portion is extended, the driving portion is pushed against the driven portion of the connecting rod to Push the link to move.

In one embodiment, the recovery unit is an elastic member that is compressed when the drive portion urges the link to move in the first direction.

In an embodiment, the connecting rod further has a positioning post, and the positioning post is extended by a parallel link. For the provision of elastic parts.

In one embodiment, the electronic device further has a positioning member disposed in the housing, wherein the positioning member has a positioning hole, the positioning post is movably disposed in the positioning hole, and one end of the elastic member is blocked by the positioning member.

In an embodiment, the blade unit further comprises a frame, and at least one blade is rotatably disposed on the frame.

In one embodiment, the drive unit is a solenoid valve that is magnetically varied to cause the drive portion to elongate or retract relative to the body portion.

In an embodiment, the electronic device further includes a control unit, wherein the control unit provides a control signal to the driving unit to control the elongation or retraction of the driving portion.

In another embodiment, the present invention provides a heat dissipation assembly including a blade unit, a driving unit, and a recovery unit, wherein the blade unit includes at least one blade and a connecting rod, and at least one blade is movably coupled to the connecting rod to selectively Opening or closing; the driving unit is disposed corresponding to the connecting rod, the driving unit comprises a body portion and a driving portion, and the driving portion can be extended or retracted relative to the body portion; the returning unit is disposed corresponding to the connecting rod for providing a restoring force, wherein when the driving portion is elongated When the driving portion pushes the connecting rod to move in the first direction and drives at least one blade to open, so that at least one blade is inclined with respect to the connecting rod; when the driving portion is retracted, the returning unit provides a restoring force to move the connecting rod in the second direction And driving at least one blade to close, so that at least one blade is parallel to the connecting rod, and the second direction is opposite to the first direction.

1‧‧‧Electronic device

10‧‧‧shell

12‧‧‧ openings

120‧‧‧ positioning parts

122‧‧‧Positioning holes

20‧‧‧Heat components

210‧‧‧blade unit

212‧‧‧ blades

212a‧‧‧ Body

212b‧‧‧Extension

212c‧‧‧ chute

212d‧‧‧Shaft axis

214‧‧‧ Connecting rod

214a‧‧‧ coupling column

214b‧‧‧Driven Department

214c‧‧‧Positioning column

216‧‧‧Frame

216a‧‧‧Axis hole

220‧‧‧ drive unit

222‧‧‧ Body Department

224‧‧‧ Drive Department

230‧‧‧Response unit

30‧‧‧ keyboard

40‧‧‧Control unit

A‧‧‧First direction

A’‧‧‧second direction

L‧‧‧ Length direction

W‧‧‧Width direction

1A and FIG. 1B respectively show that the heat dissipation component of the electronic device of the embodiment of the present invention is turned off and on. FIG. 2 is an exploded view of a heat dissipating component according to an embodiment of the present invention; FIG. 3A and FIG. 3B are a perspective view and a side view of a heat dissipating component in a closed state according to an embodiment of the present invention; FIG. 3C is a heat dissipating component of FIG. 4A and 4B are a perspective view and a side view of the heat dissipating component of the embodiment of the present invention in an open state; and FIG. 4C is a side view of the heat dissipating component of FIG. 4A disposed in the casing.

The invention provides an electronic device and a heat dissipating component thereof, in particular to an electronic device with a design of a heat dissipating tuyere and a heat dissipating component thereof. In the embodiment of the present invention, the electronic device is preferably a portable electronic device such as a notebook computer, which can adjust the size of the heat dissipation tuyere by controlling the opening and closing of the blade according to the running performance of the electronic device, thereby adjusting the efficiency of the heat convection. , but not limited to this. Embodiments of the electronic device and its heat dissipating assembly of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1A and FIG. 1B , the electronic device 1 includes a housing 10 and a heat dissipation assembly 20 , wherein the housing 10 has an opening 12 , and the heat dissipation assembly 20 is disposed on the housing 10 corresponding to the opening 12 . For example, as shown in FIG. 1A, when the electronic device 1 is idle, or when the operating performance of the electronic device 1 is normal or the temperature is less than a preset value, the heat dissipation component 20 is in a closed state to substantially obscure the opening 12, so that The housing 10 has an integrated appearance and can achieve anti-fouling and dust-proof effects. Furthermore, as shown in FIG. 1B, when the operating efficiency of the electronic device 1 is fully open or the temperature is greater than a preset value, the heat dissipating component 20 is in an open state to expose at least a portion of the opening 12 as a heat dissipating vent, such that the interior of the housing 10 is The outside world communicates to improve heat convection and improve heat dissipation efficiency. In this embodiment, the electronic device 1 further includes a keyboard 30, The opening 12 is disposed on the same surface as the keyboard 30, but is not limited thereto.

In one embodiment, as shown in FIG. 2, FIG. 3A and FIG. 4A, the heat dissipation assembly 20 includes a blade unit 210, a driving unit 220 and a recovery unit 230, wherein the blade unit 210 includes at least one blade 212 and a connecting rod 214, at least one blade. The 210 is movably coupled to the link 214 for selectively opening or closing. The driving unit 220 is disposed corresponding to the link 214. The driving unit 220 includes a body portion 222 and a driving portion 224. The driving portion 224 can be extended or retracted relative to the body portion 222. The recovery unit 230 is disposed on the connecting rod 214 for providing a restoring force. As shown in FIG. 4A, as the drive portion 224 is extended, the drive portion 224 pushes the link 214 toward the first direction A and causes at least one of the blades 212 to open to tilt the at least one blade 212 relative to the link 214. As shown in FIG. 3A, when the driving portion 224 is retracted, the returning unit 230 provides a restoring force to move the link 214 toward the second direction A' and drive at least one of the blades 212 to close, so that at least one of the blades 212 is parallel to the link 214, The second direction A' is opposite to the first direction A.

Specifically, the blade 212 includes a body portion 212a, an extending portion 212b, and a sliding groove 212c. The body portion 212a is preferably in the form of a flat plate, and is a component of the blade 212 that is opened and closed with respect to the opening 12 to respond to the driving unit 220. Actuate to shield or expose the opening 12. The extending portion 212b extends from the side of the sheet portion 212a such that the extending portion 212b is obliquely erected with respect to the sheet surface of the sheet portion 212a, and protrudes from the sheet in the width direction W of the sheet portion 212a. Body 212a. In this embodiment, the extending portion 212b preferably extends obliquely downward from the right end of the sheet portion 212a, and the groove 212c is also inclined with respect to the plate surface of the sheet portion 212a; that is, the groove 212c is opposite to the sheet portion. 212a extends obliquely to the lower right, but not limited to this. In other embodiments, the extending portion 212b may extend obliquely downward from the left end of the sheet portion 212a according to the opening and closing direction of the blade 212, so that the groove 212c may extend obliquely downward to the left with respect to the sheet portion 212a.

Furthermore, the blade unit 20 can further include a frame 216, and the blade 212 is rotatably Set in the frame 216. Specifically, the frame 216 has a shaft hole 216a, and the blade 212 has a convex shaft 212d on both sides thereof. The convex shaft 212d rotatably engages the shaft hole 216a, so that the frame 216 can support the blade 212 when the blade 212 is opened and closed with respect to the opening 12. Rotating relative to the frame 216. In this embodiment, the two protruding shafts 212d are disposed on both sides of the sheet portion 212a along the longitudinal direction L of the sheet portion 212a, and the protruding shaft 212d is disposed corresponding to the extending portion 212b. That is, the protruding shaft 212d and the extending portion 212b are disposed at the same end of the sheet portion 212a, and one of the protruding shafts 212d is disposed at a portion of the extending portion 212b near the sheet portion 212a. Moreover, in another embodiment, the positions of the male shaft and the shaft hole may be interchanged, and are not limited to the examples. That is, the protruding shaft 212d is disposed on the frame 216, and the shaft hole 216a is disposed in the blade 212, whereby the blade 212 is also rotatable relative to the frame 216.

The link 214 is disposed on one side of the blade 212 corresponding to the extending portion 212b of the blade 212. The connecting rod 214 has at least one coupling post 214a, wherein the number of the coupling posts 214a corresponds to the number of the blades 212, and the coupling posts 214a can be inserted into the sliding slots 212c of the corresponding blades 212 respectively to enable the blades 212 to be movably coupled. Connect the connecting rod 214. Specifically, the coupling post 214a is disposed on one side of the connecting rod 214, and preferably protrudes perpendicularly outwardly with respect to the shaft of the connecting rod 214 to be movably coupled with the sliding groove 212c of the blade 212, and The chute 212c is inclined with respect to the moving direction of the link 214 (for example, directions A, A'). As shown in the figure, in this embodiment, the blade unit 210 includes four identical blades 212, and the connecting rod 214 has four coupling posts 214a, wherein the four coupling posts 214a are along the shaft of the connecting rod 214. The spacers are arranged such that the four blades are disposed along the shaft of the connecting rod 214 in such a manner that the extending portion 212b faces the connecting rod 214, so that the coupling post 214a can be inserted into the corresponding sliding groove 212c. It should be noted that the number of the blades 212 may vary depending on the size of the opening 12 and the width of each blade 212, and is not limited to the embodiment.

Further, the link 214 has a driven portion 214b as a portion that acts on the driving portion 224 of the driving unit 220. The driven portion 214b may be outwardly inclined with respect to the shaft of the connecting rod 214 A straight protruding block or cylinder, and preferably located at the end of the shaft of the connecting rod 214. The driven portion 214b and the coupling post 214a are respectively disposed on opposite sides of the connecting rod 214, that is, the driven portion 214b and the coupling post 214a respectively protrude away from both sides of the shaft of the connecting rod 214.

The driving unit 220 is disposed corresponding to the driven portion 214b of the link 214 such that the driving unit 220 can apply a force to the driven portion 214b to push the link 214 to move. Specifically, the driving unit 220 includes a body portion 222 and a driving portion 224 , wherein the driving portion 224 can be extended or retracted relative to the body portion 222 . For example, in this embodiment, the drive unit 220 is a solenoid valve that is magnetically changed to cause the drive portion 224 to elongate or retract relative to the body portion 222. In other words, the solenoid valve is extended or retracted relative to the body portion 222 by the principle of isotropic repulsion and opposite-phase attraction. Specifically, an electromagnet is disposed in the main body portion 222, and the driving portion 224 has a magnetic member adjacent to or extending into one end of the main body portion 222 to correspond to the electromagnet. The driving unit 220 extends or retracts the driving portion 224 with respect to the body portion 222 by controlling the magnetism of the electromagnet.

For example, when the magnetic property of the electromagnet is controlled to be the same as the magnetic member of the driving portion 224, a magnetic repulsive force is generated between the electromagnet and the magnetic member, so that the driving portion 224 moves (ie, elongates) outside the body portion 222 to apply force. The driven portion 214b of the link 214, in turn, pushes the link 214 to move. When the magnetic property of the electromagnet is changed to be different from the magnetic member of the driving portion 224, a magnetic attraction force is generated between the electromagnet and the magnetic member, so that the driving portion 224 moves (ie, retracts) toward the inside of the body portion 222 without applying force to The driven portion 214b of the link 214.

In this embodiment, the recovery unit 230 is an elastic member such as a spring. Correspondingly, the connecting rod 214 further has a positioning post 214c for sheathing the elastic member. The positioning post 214c preferably extends parallel to the link 214 and is coupled to the link 214. Specifically, the positioning post 214c can protrude from the other end of the link 214 with respect to the driven portion 214b and extend toward the driven portion 214b along the shaft of the link 214. In addition, heat dissipation The component 20 further includes a positioning member 120. The positioning component 120 is disposed corresponding to the positioning post 214c, and the positioning component 120 is disposed in the housing 10. The positioning component 120 has a positioning hole 122, so that the positioning post 214c is movably disposed through the positioning. In the hole 122, one end of the elastic member is blocked by the positioning member 120. In other words, the spring that is disposed through the positioning post 214c is interposed between the positioning member 120 and the protruding portion of the connecting rod 214.

The operation of the heat dissipating component 20 of the present invention will be described with reference to FIGS. 3A-3C and FIGS. 4A-4C in conjunction with FIGS. 1A and 1B. As shown in FIG. 1A and FIG. 3A to FIG. 3C, when the heat dissipating component 20 is in the closed state, the driving portion 224 is retracted relative to the main body portion 222, that is, the driving unit 220 is magnetized by the electromagnet and the driving portion 224. The magnetic attraction force causes the driving portion 224 to retract toward the inside of the main body portion 222. At this time, most of the driving portion 224 is housed in the main body portion 222 and only a small portion protrudes outside the main body portion 222. Moreover, in the closed state, the link 214 is positioned by the return unit 230 such that the coupling post 214a of the link 214 is at the bottom end of the chute 212c of the blade 212 and the vane 212 is closed to shield the opening 12. That is, in the closed state, the spring-type return unit 230 is preferably in an extended original state, in which case the driven portion 214b of the link 214 corresponds to the driving portion 224 of the driving unit 220 and approaches the body portion 222, and the connecting rod The coupling post 214a of 214 is positioned at the distal end of the chute 212c relative to the body portion 212a. Thereby, the body portion 212a of the blade 212 is horizontally disposed with respect to the frame 216 or the opening 12 and is parallel to the link 214. In this embodiment, in the closed state, the plate surface of the blade portion 212a of each blade 212 preferably substantially obscures the opening 12, and is preferably substantially coplanar with the surface of the casing 10 in which the opening 12 is opened (as shown in FIGS. 1A and 3C). Shown).

As shown in FIG. 1B and FIG. 4A to FIG. 4C, when the heat dissipating component 20 is in the open state, the driving portion 224 is in an extended state with respect to the main body portion 222, that is, the driving unit 220 is made of a magnetic member of the electromagnet and the driving portion 224. The magnetic repulsive force is generated to drive the driving portion 224 to move outside the main body portion 222 such that the driving portion 224 originally housed in the main body portion 222 protrudes outward of the main body portion 222. When the drive department When the 224 is extended outward relative to the body portion 222, the driving portion 222 pushes against the driven portion 214b of the link 214 to move the link 212 in the first direction A (for example, the left side). That is, the driven portion 214b of the connecting rod 214 is moved away from the main body portion 222, and is slidably coupled to the sliding groove 212c of the blade 212 by the coupling post 214a of the connecting rod 214, and the coupling post 214a is coupled. Moving along the chute 212c toward the top end of the chute (ie, toward the sheet portion 212a), thereby driving the blade 212 to rotate open relative to the opening 12 (or the frame 216) (for example, rotating in a clockwise direction), so that the blade 212 is Portion 212a assumes an inclined state relative to link 214 or frame 216 to expose at least a portion of opening 12. Moreover, when the connecting rod 212 moves toward the first direction A, the positioning post 214c is simultaneously moved relative to the positioning member 120 in the positioning hole 122 toward the first direction A, thereby compressing the returning device 230 in the form of a spring.

When the heat dissipating component 20 is turned off, the driving unit 220 retracts the driving portion 224 outside the main body portion 222 toward the main body portion 222 by generating a magnetic attraction force between the electromagnet and the magnetic member of the driving portion 224. At this time, the driven portion 214b of the link 214 loses the thrust of the driving portion 224, and the restored force returned to the original tensile state can be provided by the compressed spring (ie, the returning device 230), so that the connecting rod 214 faces the first The second direction A' (ie, the right side) opposite to the direction A moves. That is, the driven portion 214b of the connecting rod 214 is moved toward the main body portion 222, and is slidably coupled to the sliding groove 212c of the blade 212 by the coupling post 214a of the connecting rod 214, and the coupling post 214a is coupled. Moving along the chute 212c toward the bottom end of the chute (for example, in a lower right direction away from the body portion 212a), thereby driving the blade 212 to rotate in a reverse direction relative to the opening 12 (or the frame 216) (for example, rotating in a counterclockwise direction), The sheet portion 212a of the blade 212 is horizontally opposed to the link 214 or the frame 216 to shield the opening 12, i.e., return to the state shown in Figs. 1A and 3A to 3C.

It should be noted that in the above embodiment, the recovery device 230 is implemented as a spring to provide the restoring force by the spring force of the spring, but is not limited thereto. In other embodiments, reply loading The holder 230 can be implemented as a magnet to provide a restoring force using a magnetic force. For example, the connecting rod 214 may be provided with a first magnetic member with respect to one end of the driven portion 214b, and the second magnetic member is disposed corresponding to the first magnetic member of the connecting rod 214, so that magnetic waves may be generated between the two magnetic members. Repulsive force. When the driving portion 224 is extended, the link 214 moves toward the first direction A such that the two magnetic members approach. When the driving portion 224 is retracted, the link 214 can be moved toward the second direction A' by the magnetic repulsion between the two magnetic members. It should be noted that, as long as the driving portion 224 of the driving unit 220 extends the thrust of the pushing link 214 to overcome the magnetic repulsion between the two magnetic members, the actions of the above embodiments of FIGS. 3A-3C and FIGS. 4A-4C can be achieved. This will not be repeated here.

In addition, as shown in FIG. 1A and FIG. 1B , the electronic device 1 may further include a control unit 40 for providing a control signal to the driving unit 220 to control the elongation or retraction of the driving portion 224 . Specifically, the control unit 40 is disposed in the housing 10 and electrically connected to the driving unit 220. In an embodiment, the control unit 40 can provide a control signal to the driving unit 220 according to the temperature of the electronic device 1. For example, the electronic device 1 may have a temperature sensor (not shown) for measuring the temperature of, for example, a central processing unit (CPU). When the measured temperature is greater than the preset value, the control unit 40 provides a control signal to the driving unit 220 to extend the driving portion 222 relative to the body portion 220, thereby opening the blade 212 to expose the opening 12, thereby enhancing the heat of the electronic device 1. Convection, improve heat dissipation efficiency. When the equivalent temperature is less than the preset value, the control unit 40 provides a control signal to the driving unit 220 to retract the driving portion 222 relative to the body portion 220, thereby closing the blade 212 to shield the opening 12. In another embodiment, the control unit 40 can provide a control signal to the driving unit 220 according to the indication signal of the user to control the opening and closing of the heat dissipation component 20. For example, the electronic device 1 can be provided with a button on the housing 10. When the user presses the button, the control unit 40 can transmit a control signal to the driving unit 220 to control the extension or retraction of the driving portion 224, thereby controlling the blade 212. Opening and closing.

Furthermore, in another embodiment, the present invention can also control the distance that the link 214 moves by controlling the length of the extension of the driving portion 224 relative to the body portion 222, thereby controlling the angle at which the blade 212 is opened, thereby adjusting the electronic device. 1 heat dissipation efficiency, but not limited to this.

The present invention has been described by the above embodiments, but the above embodiments are for illustrative purposes only and are not intended to be limiting. It will be apparent to those skilled in the art that the embodiments specifically described herein may have other modifications of the embodiments. Accordingly, the scope of the invention is intended to cover such modifications and are only limited by the scope of the appended claims.

120‧‧‧ positioning parts

20‧‧‧Heat components

212‧‧‧ blades

212a‧‧‧ Body

212b‧‧‧Extension

212c‧‧‧ chute

212d‧‧‧Shaft axis

214‧‧‧ Connecting rod

214a‧‧‧ coupling column

214b‧‧‧Driven Department

214c‧‧‧Positioning column

216‧‧‧Frame

220‧‧‧ drive unit

222‧‧‧ Body Department

224‧‧‧ Drive Department

230‧‧‧Response unit

A‧‧‧First direction

A’‧‧‧second direction

Claims (19)

An electronic device comprising: a casing having an opening; and a heat dissipating component disposed corresponding to the casing, the heat dissipating component comprising: a blade unit corresponding to the opening, the blade unit comprising at least one blade and a connecting rod, the at least one blade is movably coupled to the connecting rod to selectively open or close relative to the opening; a driving unit is disposed corresponding to the connecting rod, the driving unit comprises a body portion and a driving portion The driving portion is extendable or retractable relative to the body portion. When the driving portion is extended, the driving portion pushes the connecting rod to move in a first direction and drives the at least one blade to open to expose at least a portion of the opening; and a returning unit, corresponding to the connecting rod, for providing a restoring force, when the driving portion is retracted, the returning unit provides the restoring force to move the connecting rod in a second direction and drive the at least one blade to close to shield the An opening, the second direction being opposite to the first direction. The electronic device of claim 1, wherein the at least one blade has a sliding slot, the connecting rod has at least one coupling post, and the at least one coupling post is correspondingly inserted into the sliding slot of the at least one blade, When the push rod moves, the coupling post moves along the chute. The electronic device of claim 2, wherein the chute is disposed obliquely with respect to a moving direction of the link. The electronic device of claim 2, wherein the connecting rod has a driven portion, the driven portion and the at least one coupling post are respectively disposed on opposite sides of the connecting rod, and when the driving portion is extended, the The driving portion pushes against the driven portion of the link to push the link to move. The electronic device of claim 1, wherein the recovery unit is an elastic member that is compressed when the driving portion urges the link to move in the first direction. The electronic device of claim 5, wherein the connecting rod further has a positioning post extending parallel to the connecting rod for sheathing the elastic member. The electronic device of claim 6, wherein the heat dissipating component further has a positioning member disposed in the housing, wherein the positioning component has a positioning hole, and the positioning post is movably disposed in the positioning hole, And one end of the elastic member is blocked by the positioning member. The electronic device of claim 1, wherein the blade unit further comprises a frame, the at least one blade being rotatably disposed on the frame. The electronic device of claim 1, wherein the driving unit is a solenoid valve that is magnetically changed such that the driving portion is elongated or retracted relative to the body portion. The electronic device of claim 1, further comprising a control unit, wherein the control unit provides a control signal to the driving unit to control the elongation or retraction of the driving portion. A heat dissipating assembly comprising: a vane unit comprising at least one vane and a connecting rod, the at least one vane being movably coupled to the connecting rod to selectively open or close; a driving unit corresponding to the connecting rod, The driving unit includes a body portion and a driving portion. The driving portion can be extended or retracted relative to the body portion. When the driving portion is extended, the driving portion pushes the connecting rod to move in a first direction and drives the at least one The blade is opened to tilt the at least one blade relative to the link; and a returning unit is disposed corresponding to the link for providing a restoring force, the returning unit providing the restoring force when the driving portion is retracted The link moves in a second direction and drives the at least A blade is closed such that the at least one blade is parallel to the link, the second direction being opposite the first direction. The heat dissipating component of claim 11, wherein the at least one blade has a sliding slot, the connecting rod has at least one coupling post, and the at least one coupling post is correspondingly inserted into the sliding slot of the at least one blade, When the push rod moves, the coupling post moves along the chute. The heat dissipation assembly of claim 12, wherein the chute is disposed obliquely with respect to a moving direction of the link. The heat dissipating component of claim 12, wherein the connecting rod has a driven portion, the driven portion and the at least one coupling post are respectively disposed on opposite sides of the connecting rod, and when the driving portion is extended, the The driving portion pushes against the driven portion of the link to push the link to move. The heat dissipating component according to claim 11, wherein the returning unit is an elastic member, and the elastic member is compressed when the driving portion pushes the connecting rod to move in the first direction. The heat dissipating component of claim 15, wherein the connecting rod further has a positioning post extending parallel to the connecting rod for sheathing the elastic member. The heat dissipating component of claim 16, further comprising a positioning member disposed in the housing, wherein the positioning member has a positioning hole, the positioning post is movably disposed in the positioning hole, and the elastic member One end is blocked by the positioning member. The heat dissipation assembly of claim 11, wherein the blade unit further comprises a frame, the at least one blade being rotatably disposed on the frame. The heat dissipating component of claim 11, wherein the driving unit is a solenoid valve that is magnetically changed to cause the driving portion to elongate or retract relative to the body portion.