Electronic device

Abstract

The application discloses an electronic device, and belongs to the technical field of communication devices.The electronic device comprises a first shell, a second shell and a heat dissipation mechanism.The first shell and the second shell can move relative to each other along a first direction, so that the electronic device can be switched between a retracted state and an unfolded state.The heat dissipation mechanism comprises a support rod and a fan blade.The two ends of the support rod are movably connected to the first shell and the second shell respectively.The fan blade is arranged on the support rod and is rotatably connected to the support rod.When the electronic device is in the unfolded state, the fan blade can rotate relative to the support rod to dissipate heat from the electronic device.When the electronic device is in the retracted state, the fan blade is accommodated between the first shell and the second shell, and the fan blade is limited and matched with the first shell and the second shell along the rotation direction of the fan blade.

Description

Technical Field

[0001] This application belongs to the field of communication equipment technology, and specifically relates to an electronic device. Background Technology

[0002] As user demands increase, the performance of electronic devices continues to be optimized. A particularly notable example is the increasingly powerful display capabilities of electronic devices.

[0003] The related technologies involve electronic devices equipped with flexible screens. These flexible screens can expand to present a larger display interface as the electronic device extends, and retract at least partially into the device when a smaller display interface is needed. This type of electronic device enables switching between different display sizes, thus facilitating user operation.

[0004] In related technologies, when users play games or watch videos, they often switch to a larger display screen on their electronic devices for a better user experience. However, during these activities, the electronic devices contain many internal components that operate for extended periods, resulting in significant heat generation. This heat can easily burn out internal components, thus compromising the safety and reliability of the electronic devices. Summary of the Invention

[0005] The purpose of this application is to provide an electronic device that can solve the problem of poor security and reliability of electronic devices.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] This application provides an electronic device, including:

[0008] A first housing and a second housing, the first housing and the second housing being movable relative to each other along a first direction, so as to switch the electronic device between a retracted state and an extended state;

[0009] A heat dissipation mechanism includes a support rod and fan blades. The two ends of the support rod are movably connected to the first housing and the second housing, respectively. The fan blades are disposed on the support rod and rotatably connected to the support rod.

[0010] When the electronic device is in the unfolded state, the fan blades can rotate relative to the support rod to dissipate heat from the electronic device;

[0011] When the electronic device is in the retracted state, the fan blade is housed between the first housing and the second housing, and the fan blade is positioned in a limiting engagement with the first housing and the second housing along the rotation direction of the fan blade.

[0012] In this embodiment, the heat dissipation mechanism includes a support rod and fan blades. The fan blades are mounted on the support rod and rotatably connected to it. Both ends of the support rod are movably connected to a first housing and a second housing, respectively. During the switching between the retracted and extended states of the electronic device, the support rod moves along with the relative movement between the first and second housings, causing the fan blades to switch between a limited position and a rotating position. When the electronic device is in the extended state, the fan blades can rotate relative to the support rod to dissipate heat from the electronic device. Therefore, the heat dissipation mechanism in this application can provide auxiliary heat dissipation for the electronic device when it is in the extended state, thereby preventing excessive heat generation when the electronic device is on a large display screen, thus avoiding damage to the internal components of the electronic device and promoting higher safety and reliability. Attached Figure Description

[0013] Figures 1 to 5 This is a schematic diagram of the electronic device disclosed in the embodiments of this application in its unfolded state;

[0014] Figure 6 This is a schematic diagram of the structure of the electronic device disclosed in the embodiments of this application in the retracted state.

[0015] Explanation of reference numerals in the attached figures:

[0016] 110-First housing, 111-First surface, 120-Second housing, 121-Second surface, 122-Slide groove, 101-Accommodation space, 102-Heat dissipation hole, 103-Accommodation slot, 300-Heat dissipation mechanism, 310-Fan blade, 320-Support rod, 330-Drive motor, 410-First magnetic component, 420-Second magnetic component. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] The electronic device provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0020] Please refer to Figures 1 to 6 This application discloses an electronic device, which includes a first housing 110, a second housing 120, a flexible display screen, and a heat dissipation mechanism 300.

[0021] The first housing 110 and the second housing 120 are movable relative to each other along a first direction to allow the electronic device to switch between a retracted state and an extended state. A flexible display screen covers one side of the first housing 110 and the second housing 120, which support the flexible display screen. The display area of ​​the flexible display screen changes with the relative movement of the first housing 110 and the second housing 120.

[0022] Specifically, the first housing 110 and the second housing 120 can move away from each other along a first direction, thereby causing the electronic device to gradually unfold until it is in an unfolded state. At this time, the flexible display screen is stretched and unfolded as the first housing 110 and the second housing 120 move away from each other, thereby increasing the display interface of the electronic device. The first housing 110 and the second housing 120 can also move closer to each other along the first direction, thereby causing the electronic device to gradually retract until it is in a retracted state. At this time, the flexible display screen curls and retracts as the first housing 110 and the second housing 120 move closer to each other, thereby reducing the display interface of the electronic device.

[0023] The heat dissipation mechanism 300 includes a support rod 320 and a fan blade 310. The two ends of the support rod 320 are movably connected to the first housing 110 and the second housing 120, respectively. The fan blade 310 can be mounted on the support rod 320 and is rotatably connected to it. During the relative movement of the first housing 110 and the second housing 120, the position of the support rod 320 relative to both housings also changes.

[0024] When the electronic device is in the unfolded state, the fan blade 310 can rotate relative to the support rod 320 to dissipate heat from the electronic device; when the electronic device is in the retracted state, the fan blade 310 is housed between the first housing 110 and the second housing 120, and the fan blade 310 is limited to the first housing 110 and the second housing 120 in the rotation direction of the fan blade 310.

[0025] Specifically, the heat dissipation mechanism 300 is located within the accommodating space 101 enclosed between the first housing 110 and the second housing 120. When the first housing 110 and the second housing 120 move relative to each other, the volume of the accommodating space 101 also changes. When the electronic device switches from an extended state to a retracted state, the volume of the accommodating space 101 gradually decreases. Simultaneously, the support rod 320 causes the position of the fan blades 310 to change, so that the fan blades 310 gradually approach the first housing 110 and the second housing 120 until the fan blades 310 are limited to the first housing 110 and the second housing 120 along their rotation direction. Therefore, when the electronic device is in the retracted state, the fan blades 310 of the heat dissipation mechanism 300 are in the limited position, thereby causing the heat dissipation mechanism 300 to be in a retracted state.

[0026] When the electronic device switches from the retracted state to the unfolded state, the volume of the accommodating space 101 gradually increases. At the same time, the support rod 320 drives the position of the fan blade 310 to change, so that the fan blade 310 gradually moves away from the first housing 110 and the second housing 120, until the fan blade 310 moves to a position where it can rotate freely in its rotation direction. At this time, the fan blade 310 is in the rotating position, so the heat dissipation mechanism 300 is in the open state, so that the heat dissipation mechanism 300 can provide auxiliary heat dissipation for the electronic device.

[0027] In the embodiments disclosed in this application, the heat dissipation mechanism 300 can assist in heat dissipation of the electronic device when the electronic device is in the unfolded state, thereby avoiding damage to the internal components of the electronic device due to the large heat generated when the electronic device is in a large display interface, thus promoting higher safety and reliability of the electronic device.

[0028] Furthermore, electronic devices typically generate less heat when retracted, so they can dissipate heat using only their own heat dissipation components. Therefore, when the electronic device is in the retracted state, the heat dissipation mechanism 300 is also in a retracted state, which reduces the installation space occupied by the heat dissipation mechanism 300 and thus reduces the size of the electronic device in the retracted state.

[0029] This application ensures that the heat dissipation mechanism 300 is also in a retracted state when the electronic device is in the retracted state, thus occupying less space in the electronic device. When the electronic device is in the unfolded state, the heat dissipation mechanism 300 is also in an open state, and the fan blades 310 can rotate within the receiving space 101 formed by the first housing 110 and the second housing 120, thereby accelerating the airflow exchange between the inside and outside of the electronic device, and thus removing the internal heat of the electronic device. This achieves excellent heat dissipation performance when the electronic device is unfolded, improves the user experience, and extends the life of the electronic device.

[0030] In some embodiments, when the electronic device generates a high amount of heat in its retracted state, it can be switched from the retracted state to the extended state to provide auxiliary heat dissipation.

[0031] In the above embodiments, the heat dissipation mechanism 300 may further include a drive motor 330, which is connected to the fan blade 310 to drive the fan blade 310 to rotate. Optionally, the drive motor 330 may be mounted on the support rod 320, or the heat dissipation mechanism 300 may be provided with a synchronous bracket connected to the support rod 320, and the drive motor 330 may be mounted on the synchronous bracket.

[0032] In the above embodiments, the electronic device may be equipped with a heat dissipation trigger. When the electronic device is in the unfolded state, the heat dissipation trigger is activated, and the drive motor 330 drives the fan blade 310 to rotate. Specifically, the heat dissipation trigger can be a contact switch or a photoelectric sensor, and it can be located on the first housing 110. When the first housing 110 and the second housing 120 move to the unfolded position, the second housing can contact the heat dissipation trigger, thereby activating it and causing the drive motor 330 to drive the fan blade 310 to rotate. When the electronic device receives a retraction command, the drive motor 330 shuts off, and the fan blade 310 stops rotating. Alternatively, the electronic device may be equipped with control buttons that can control the opening and closing of the heat dissipation mechanism 300 at any time.

[0033] Optionally, the support rod 320 can be an elastic element. Both ends of the support rod 320 can be fixedly connected to the first housing 110 and the second housing 120. When the first housing 110 and the second housing 120 move relative to each other, the support rod 320 undergoes elastic deformation to adapt to changes in the position of the first housing 110 and the second housing 120. However, when the first housing 110 and the second housing 120 move, they need to overcome the elastic force of the support rod 320, thus resulting in higher energy consumption for the electronic device.

[0034] Therefore, in one optional embodiment, at least one of the first housing 110 and the second housing 120 can be slidably connected to the support rod 320. In this case, the position of at least one end of the support rod 320 relative to the first housing 110 or the second housing 120 changes to accommodate the positional changes of the first housing 110 and the second housing 120, thereby avoiding the risk of the first housing 110 and the second housing 120 becoming stuck.

[0035] In this design, at least one end of the support rod 320 can slide relative to the first housing 110 or the second housing 120, thereby changing the connection position between the end of the support rod 320 and the first housing 110 and the second housing 120 to adapt to the unfolded and retracted positions of the first housing 110 and the second housing 120. Therefore, there is no need to overcome the elasticity of the support rod 320, resulting in lower power consumption of the electronic device.

[0036] Optionally, both ends of the support rod 320 are slidably connected to both the first housing 110 and the second housing 120. For example, the extension direction of the support rod 320 may be parallel to or intersect with the first direction.

[0037] Furthermore, one of the first housing 110 and the second housing 120 can be rotatably connected to the first end of the support rod 320, where the first end is the rotating end; the other can be slidably connected to the second end of the support rod 320, where the second end is the sliding end. The extension direction from the first end to the second end can be a second direction, where the second direction is the extension direction of the support rod 320. The first direction can intersect with the second direction.

[0038] In this design, when the first housing 110 and the second housing 120 move relative to each other, the rotating end of the support rod 320 rotates, and at the same time, the sliding end of the support rod 320 slides, thereby better adapting to the positional changes of the first housing 110 and the second housing 120.

[0039] In some embodiments, the first direction may be perpendicular to the second direction. For example, the first direction may be the length direction of the electronic device, while the second direction may be the width direction of the electronic device.

[0040] In the above embodiments, the first housing 110 and the second housing 120 may be provided with sliding grooves 122, and the end of the support rod 320 may be provided with a hook shaft, at least a portion of which is located within the sliding groove 122, thereby achieving a sliding engagement with the sliding groove 122. Furthermore, the two opposite sidewalls of the sliding groove 122 along its extending direction can limit the movement position of the support rod 320, thereby limiting the electronic device in the extended and retracted positions, thus preventing excessive extension and retraction of the electronic device, and further improving the reliability and safety of the electronic device.

[0041] Alternatively, sliding protrusions can be provided on the first housing 110 and the second housing 120, and a slot can be provided at the end of the support rod 320. The slot on the support rod 320 can engage with the sliding protrusion, thereby achieving a sliding fit between the support rod 320 and the first housing 110 or the second housing 120. Of course, the support rod 320 can also achieve a sliding fit with the first housing 110 or the second housing 120 through other structures, which are not limited herein.

[0042] In the above embodiments, the end of the support rod 320 may be provided with a rotating shaft, and one of the first housing 110 and the second housing 120 may be rotatably connected to the support rod 320 via the rotating shaft. Alternatively, one of the first housing 110 and the second housing 120 may be provided with a rotating shaft, and the end of the support rod 320 may have a connecting hole, through which the support rod 320 is fitted onto the rotating shaft. Of course, the support rod 320 may also achieve rotatable engagement with the first housing 110 or the second housing 120 through other structures, which is not limited herein.

[0043] In another optional embodiment, the support rod 320 can be a telescopic structure, with both ends of the support rod 320 rotatably connected to the first housing 110 and the second housing 120, respectively. In this case, both ends of the support rod 320 are rotating ends. The distance between the first and second ends in the extended state can be greater than the distance between the first and second ends in the retracted state. That is, the length of the support rod 320 gradually increases as the electronic device is extended, and the length of the support rod 320 gradually decreases as the electronic device is retracted.

[0044] In this scheme, when the first housing 110 and the second housing 120 move relative to each other, the two ends of the support rod 320 rotate with the first housing 110 and the second housing 120. At the same time, the length of the support rod 320 also changes to adapt to the positional changes of the first housing 110 and the second housing 120, thereby avoiding the risk of the first housing 110 and the second housing 120 getting stuck.

[0045] Optionally, the support rod 320 may include multiple connecting rods, with two adjacent connecting rods nested together and parallel to each other along their axial direction. In this case, the support rod 320 is a telescopic rod structure.

[0046] Alternatively, multiple links can be rotatably connected in sequence. The first housing 110 is rotatably connected to a link at one end of the support rod 320, and the second housing 120 is rotatably connected to a link at the other end of the support rod 320. The fan blade 310 can be mounted on one of the links. In this case, the support rod 320 has a folding and telescopic structure.

[0047] In some embodiments, such as Figure 1 As shown, the number of fan blades 310 can be two, namely a first fan blade and a second fan blade. The first fan blade and the second fan blade are coaxially arranged, and their extension directions can be parallel. When the electronic device is in the retracted state, both the first fan blade and the second fan blade are parallel to the support rod, as shown. Figure 6 As shown.

[0048] Of course, the number of fan blades 310 is not limited to two; it can be any other number, which is not limited in this article.

[0049] In the electronic device disclosed in this application, the number of heat dissipation mechanisms 300 can be multiple. Alternatively, each support rod 320 can be provided with multiple fan blades along its arrangement direction, in which case each fan blade is driven by a corresponding drive motor.

[0050] In the above embodiments, when the electronic device is in the retracted state, a large space needs to be reserved between the first housing 110 and the second housing 120 to accommodate the heat dissipation mechanism 300, which makes the electronic device larger in size when it is in the retracted state.

[0051] Based on this, in another optional embodiment, one of the first housing 110 and the second housing 120 may have a receiving groove 103, and one end of the support rod 320 may be connected to the side wall of the receiving groove 103. The receiving space 101 mentioned above includes the receiving groove 103. When the electronic device is in the retracted state, both the fan blade 310 and the support rod 320 may be located within the receiving groove 103; when the electronic device is in the deployed state, at least a portion of the fan blade 310 and at least a portion of the support rod 320 are located outside the receiving groove 103.

[0052] In this design, when the heat dissipation mechanism 300 is in the retracted state, the fan blades 310 and the support rod 320 can both be hidden in the receiving groove 103, thereby leaving a small space between the first housing 110 and the second housing 120 for installing the heat dissipation mechanism 300, and thus making the electronic device smaller in size when it is in the retracted state.

[0053] In the above embodiments, the first housing 110 may have a first surface 111. The second housing 120 may have a second surface 121. The first surface 111 and the second surface 121 may be arranged opposite to each other along a first direction. In this case, when the extension direction of the fan blade 310 is perpendicular to at least one of the first surface 111 and the second surface 121, the end of the fan blade 310 away from the support rod 320 is prone to abutting against the first surface 111 and / or the second surface 121, thus easily causing the first housing 110 and the second housing 120 to jam, or easily causing damage to the fan blade 310. The extension direction of the fan blade 310 is parallel to the direction from the connection end of the fan blade 310 and the support rod 320 to the free end of the fan blade 310.

[0054] Based on this, in another optional embodiment, the electronic device disclosed in this application may further include a fan blade positioning mechanism. When the electronic device switches from an unfolded state to a retracted state, the fan blade positioning mechanism can drive the fan blade 310 to rotate to a preset position. When the fan blade 310 is in the preset position, the angle between the fan blade 310 and the first surface 111 and the second surface 121 is less than or greater than 90°. In this solution, when the electronic device switches from an unfolded state to a retracted state, the fan blade positioning mechanism drives the fan blade 310 to tilt relative to the first surface 111 and the second surface 121, thereby avoiding the risk of the first surface 111 and the second surface 121 jamming with the fan blade 310, further improving the safety and reliability of the electronic device.

[0055] Optionally, the fan blade positioning mechanism can be a first charged piece and a second charged piece. The first charged piece can be disposed on the fan blade 310, and the second charged piece can be disposed on the first surface 111 and / or the second surface 121. The first charged piece can carry a positive charge, and the second charged piece can carry a negative charge. When the drive motor stops driving the fan blade 310, the electrostatic force between the first charged piece and the second charged piece can drive the fan blade 310 to a preset position. The preset position can be any angle at which the fan blade 310 is tilted relative to the first surface 111 and the second surface 121, and is not limited herein.

[0056] In another optional embodiment, the fan blade positioning mechanism may include a first magnetic element 410 and a second magnetic element 420. The first magnetic element 410 may be disposed on the fan blade 310, and the second magnetic element 420 may be disposed on the first surface 111 and / or the second surface 121. The first magnetic element 410 and the second magnetic element 420 may be magnetically engaged. In this case, the first magnetic element 410 and the second magnetic element 420 may be magnetically attracted, that is, the N pole of the first magnetic element 410 may be opposite to the S pole of the second magnetic element 420. Alternatively, the first magnetic element 410 and the second magnetic element 420 may also be magnetically repelled, that is, the N pole of the first magnetic element 410 may be opposite to the N pole of the second magnetic element 420.

[0057] In this solution, the fan blade positioning mechanism is a magnetic component. The magnetic component has a simple structure, which makes the electronic device less expensive.

[0058] Optionally, the first magnetic element 410 and the second magnetic element 420 can both be electromagnets or both be permanent magnets, or one of the first magnetic element 410 and the second magnetic element 420 can be an electromagnet and the other can be a permanent magnet.

[0059] In another alternative embodiment, the fan blade 310 may have a free end, which may be provided with a rounded corner. When the fan blade 310 is in a preset position, the rounded corner may be opposite to the first surface 111 or the second surface 121. In this solution, the friction between the rounded corner and the first surface 111 and the second surface 121 is small, so the rounded corner has better sliding performance, thereby reducing the risk of jamming or jamming between the fan blade 310 and the first housing 110 and / or the second housing 120, further improving the safety and reliability of the electronic device.

[0060] In some embodiments, one of the first housing 110 and the second housing 120 may have a heat dissipation hole 102. The heat dissipation hole 102 can be used to connect the internal cavity of the electronic device with the external space, where the internal cavity can be the receiving space 101 enclosed by the first housing 110 and the second housing 120. When the electronic device is in the unfolded state, the fan blade 310 is arranged opposite to the heat dissipation hole 102. In this solution, the heat dissipation mechanism 300 can quickly expel hot air from inside the electronic device through the heat dissipation hole 102, increasing the convection rate between the internal gas and the external gas, thus further improving the heat dissipation performance of the electronic device.

[0061] In another alternative embodiment, the heat dissipation hole 102 can be formed on the second housing 120. When the electronic device is in the retracted state, the first housing 110 covers the heat dissipation hole 102; when the electronic device is in the extended state, the heat dissipation hole 102 is exposed on the first housing 110. In this case, when the electronic device is in the retracted state, the first housing 110 can cover the heat dissipation hole 102, so that the user cannot see the heat dissipation hole 102, thereby improving the appearance of the electronic device. Additionally, it can also prevent dust from entering the electronic device through the clearance hole, improving the waterproof and dustproof performance of the electronic device.

[0062] In another alternative embodiment, the fan blade 310 can be located on the side of the support rod 320 facing away from the flexible display screen. In this solution, the fan blade 310 is less likely to interfere with the flexible display screen, thus improving the safety and reliability of the electronic device.

[0063] In the above embodiments, the electronic device further includes a movable roller, which is rotatably connected to the first housing 110. The second housing 120 may be provided with a rack, and the end of the movable roller meshes with the rack. A motor drives the movable roller to rotate, and the reaction force of the rack of the second housing 120 on the movable roller drives the movable roller to move along the extension direction of the rack, thereby moving the first housing 110. Of course, this application is not limited to driving the movable roller to drive the first housing 110 to move; the extension state and retracted state of the electronic device can also be switched by driving the support rod 320.

[0064] Specifically, the electronic device may further include a drive mechanism disposed on the first housing 110 or the second housing 120. The drive mechanism may be connected to the support rod 320, and the drive mechanism may drive the first housing 110 and the second housing 120 to move relative to each other through the support rod 320, so as to switch the electronic device between an extended state and a retracted state.

[0065] Optionally, when the support rod 320 is an elastic element, the elastic deformation of the support rod 320 can be changed by a drive mechanism, thereby realizing the relative movement of the first housing 110 and the second housing 120. In this case, the drive mechanism can be a power mechanism such as a shape memory alloy. Alternatively, the drive mechanism can also drive the support rod 320 to rotate, thereby realizing the relative movement of the first housing 110 and the second housing 120. In this case, the drive mechanism can be a power mechanism such as a motor. This solution can optimize the layout of electronic devices and help reduce the manufacturing cost of electronic devices.

[0066] Of course, the switching between the retracted and extended states of the electronic device can also be manually operated by the user. When the electronic device switches from the retracted state to the extended state, the user can pull the first housing 110 outward. When the electronic device switches from the extended state to the retracted state, the user can push the first housing 110 inward.

[0067] The electronic devices disclosed in this application can be smartphones, tablets, e-book readers, wearable devices (such as smartwatches), video game consoles, etc. This application does not limit the specific types of electronic devices.

[0068] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An electronic device, characterized in that, include: A first housing and a second housing, the first housing and the second housing being movable relative to each other along a first direction, so as to switch the electronic device between a retracted state and an extended state; A heat dissipation mechanism includes a support rod and fan blades. The two ends of the support rod are movably connected to the first housing and the second housing, respectively. The fan blades are disposed on the support rod and rotatably connected to the support rod. When the electronic device is in the unfolded state, the heat dissipation mechanism is in the open state, and the fan blades can rotate relative to the support rod to dissipate heat from the electronic device. When the electronic device is in the retracted state, the heat dissipation mechanism is in the folded state, the fan blades are housed between the first housing and the second housing, and the fan blades are limited to the first housing and the second housing along the rotation direction of the fan blades; When the electronic device switches between the retracted state and the unfolded state, it simultaneously drives the heat dissipation mechanism to switch between the closed state and the open state.

2. The electronic device according to claim 1, characterized in that, At least one of the first housing and the second housing is slidably connected to the support rod.

3. The electronic device according to claim 2, characterized in that, One of the first housing and the second housing is rotatably connected to the first end of the support rod, and the other is slidably connected to the second end of the support rod. The extension direction from the first end to the second end is the second direction, and the first direction intersects the second direction.

4. The electronic device according to claim 1, characterized in that, The support rod is a telescopic structure, and its two ends are rotatably connected to the first housing and the second housing, respectively. The distance between the first end and the second end in the extended state is greater than the distance between the first end and the second end in the retracted state.

5. The electronic device according to claim 1, characterized in that, One of the first housing and the second housing is provided with a receiving groove, and one end of the support rod is connected to the side wall of the receiving groove; When the electronic device is in the retracted state, both the fan blades and the support rod are located within the receiving groove; When the electronic device is in the deployed state, at least a portion of the fan blades and at least a portion of the support rod are located outside the receiving slot.

6. The electronic device according to claim 1, characterized in that, The first housing has a first surface, the second housing has a second surface, and the first surface and the second surface are arranged opposite to each other along the first direction; The electronic device also includes a fan blade positioning mechanism. When the electronic device switches from the unfolded state to the retracted state, the fan blade positioning mechanism drives the fan blade to rotate to a preset position. When the fan blade is in the preset position, the angle between the fan blade and the first surface and the second surface is less than or greater than 90°.

7. The electronic device according to claim 6, characterized in that, The fan blade positioning mechanism includes a first magnetic component and a second magnetic component. The first magnetic component is disposed on the fan blade, and the second magnetic component is disposed on the first surface and / or the second surface. The first magnetic component and the second magnetic component are magnetically engaged.

8. The electronic device according to claim 6, characterized in that, The fan blade has a free end with a rounded corner. When the fan blade is in the preset position, the rounded corner is opposite to the first surface or the second surface.

9. The electronic device according to claim 1, characterized in that, One of the first housing and the second housing has a heat dissipation hole, which is used to connect the internal cavity of the electronic device with the external space. When the electronic device is in the unfolded state, the fan blade is arranged opposite to the heat dissipation hole.

10. The electronic device according to claim 1, characterized in that, The electronic device also includes a flexible display screen, which covers one side of the first housing and the second housing, and the display area of ​​the flexible display screen changes with the relative movement of the first housing and the second housing; the fan blade is located on the side of the support rod away from the flexible display screen.

11. The electronic device according to claim 1, characterized in that, The electronic device further includes a drive mechanism disposed on the first housing or the second housing. The drive mechanism is connected to the support rod and drives the first housing and the second housing to move relative to each other through the support rod, so that the electronic device switches between the deployed state and the retracted state.

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