Rear moving type rotating shaft structure, heat dissipation control system and electronic product

Abstract

The invention relates to the technical field of electronic product heat dissipation, in particular to a rear moving type rotating shaft structure, a heat dissipation control system and an electronic product. The structure comprises a shell assembly, a rotating shaft assembly and a driving assembly, the shell assembly comprises a shell main body, a fixed support and a movable support, the shell main body comprises a notch, the fixed support and the movable support are overlapped at the notch, and the fixed support is fixedly connected with the shell main body; the rotating shaft assembly comprises a first connecting plate; the first connecting plate is connected with the movable bracket; the driving assembly comprises a sliding block and a linear driving module, the linear driving module is in sliding connection with the sliding block, the sliding block is connected with the fixed support, the linear driving module is connected with the movable support, and the linear driving module is used for driving the movable support and the rotating shaft assembly to move to the outer side of the notch. After the rotating shaft structure moves backwards, blocking of the air outlet can be relieved or avoided, the heat dissipation efficiency is improved, other structures of the shell assembly cannot be changed due to the backward moving mode of the rotating shaft structure, and stable supporting can be provided.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation of electronic products, and in particular to a rear movable shaft structure, a heat dissipation control system and an electronic product. Background Art

[0002] The design trend of laptops has always been towards being thin, light and short. In order to provide a better user experience, the heat outlet is generally adjusted to the back. At the same time, in order to have a higher screen-to-body ratio, a sunken hinge design is chosen.

[0003] However, the disadvantage of the sunken hinge is that after the display end is opened, the bottom of the display end will block the heat outlet on the rear side, causing hot air to reflux, which not only affects the heat dissipation efficiency of the entire machine, but also leads to problems such as excessively high surface temperature of the shell, reduced processor computing performance, and system overheating and shutdown.

[0004] In order to solve the above problems, an additional air outlet is provided to improve the heat dissipation efficiency, that is, the bottom plate of the system end is separated from the shell to form a new air outlet, wherein the new air outlet is formed by the rotation of the shaft. This method still does not solve the problem of the original air outlet being blocked, and the new air outlet is completely supported by the shaft, and the support force of the shaft is limited, so that the user's hands cannot press too hard on the shell to operate. Summary of the invention

[0005] In order to solve at least the above technical problems existing in the prior art, the present invention provides a rear movable shaft structure, a heat dissipation control system and an electronic product.

[0006] On the one hand, the present invention provides a rear movable shaft structure, comprising a shell assembly, a shaft assembly and a driving assembly; the shell assembly comprises a shell body, a fixed bracket and a movable bracket, the shell body comprises a notch, the fixed bracket and the movable bracket are overlapped and located at the notch, and the fixed bracket is fixedly connected to the shell body; the shaft assembly comprises a first connecting plate, the first connecting plate is connected to the movable bracket; the driving assembly comprises a slider and a linear driving module, the linear driving module is slidably connected to the slider, the slider is connected to the fixed bracket, the linear driving module is connected to the movable bracket, and the linear driving module is used to drive the movable bracket and the shaft assembly to move to the outside of the notch.

[0007] In some embodiments, the shell body includes a first shell and a second shell, the notch is respectively set on the first shell and the second shell, and the fixed bracket is connected to the inner wall of the first shell or the second shell; the movable bracket includes a first sub-shell and a second sub-shell, the first sub-shell is set at the notch position of the first shell, and the second sub-shell is set at the notch position of the second shell, and the first connecting plate and the linear drive module are connected to the first sub-shell or the second sub-shell.

[0008] In some embodiments, a sliding assembly is respectively arranged between the first sub-shell and the first shell, and between the first sub-shell and the fixed bracket, and / or a sliding assembly is respectively arranged between the second sub-shell and the second shell, and between the second sub-shell and the fixed bracket; the sliding direction of the sliding assembly is the same as the moving direction of the linear drive module.

[0009] In some embodiments, the sliding assembly includes a sliding protrusion and a bar slide rail; the sliding protrusion is arranged on the first sub-shell and / or the second sub-shell, and the bar slide rail is arranged on the first shell and / or the second shell; or, the sliding protrusion is arranged on the first shell and / or the second shell, and the bar slide rail is arranged on the first sub-shell and / or the second sub-shell.

[0010] In some embodiments, the linear drive module includes a frame, a drive motor, a gear box and a linear screw; the drive motor, the gear box and the linear screw are arranged on the frame, and the frame is connected to the first sub-shell or the second sub-shell; the output shaft of the drive motor is connected to the driving gear of the gear box, the linear screw is connected to the driven gear of the gear box, and the linear screw is threadedly connected to the slider.

[0011] Another aspect of the present invention provides a heat dissipation control system, comprising the above-mentioned rear movable shaft structure.

[0012] In some embodiments, a controller is further included, and the controller includes an acquisition module; the acquisition module is configured to obtain the speed information of the cooling fan or the temperature information of a set position; the controller controls the start and stop of the linear drive module according to the speed information or the temperature information.

[0013] In some embodiments, the controller further includes a prompt information sending module, and the prompt information sending module is configured to send a prompt signal when the speed information or temperature information of the cooling fan is within a set range.

[0014] In some embodiments, the prompt information sending module is used to send a prompt signal to a display device, and a pop-up prompt is performed through the display device; or the prompt information sending module is used to send a prompt signal to an audio-visual reminder device, and a sound and / or photoelectric prompt is performed through the audio-visual reminder device.

[0015] Another aspect of the present invention provides an electronic product, comprising the above-mentioned rear movable shaft structure or the above-mentioned heat dissipation control system.

[0016] The present invention provides a rear-movable shaft structure, a heat dissipation control system, and an electronic product. The shaft structure can move a certain distance on the housing assembly under the action of a driving assembly. The distance can increase the distance between the two structures connected to the shaft assembly, thereby reducing the influence of the two structures on heat dissipation. According to the technical solution of the present invention, after the shaft structure moves backward, the obstruction of the air outlet can be alleviated or avoided, thereby improving the heat dissipation efficiency. The way the shaft structure moves backward does not change other structures of the housing assembly, and can provide stable support. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0018] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0019] Figure 1 A structural schematic diagram of one side of a rear movable shaft structure provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of the other side of the rear movable shaft structure provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of the rear movable shaft structure provided by an embodiment of the present invention when it is not moved Figure 1 ;

[0022] Figure 4 A schematic diagram of the structure of the rear movable shaft structure provided by an embodiment of the present invention when it is not moved Figure 2 ;

[0023] Figure 5 A schematic diagram of the structure of the rear movable shaft structure after movement provided by an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of one side of the rear movable shaft structure in an electronic product provided by an embodiment of the present invention Figure 1 ;

[0025] Figure 7 A schematic diagram of one side of the rear movable shaft structure in an electronic product provided by an embodiment of the present invention Figure 2 ;

[0026] Figure 8 A schematic diagram of the structure of the other side of the rear movable shaft structure in the electronic product provided by an embodiment of the present invention Figure 1 ;

[0027] Fig. 9 A schematic diagram of the structure of the other side of the rear movable shaft structure in the electronic product provided by an embodiment of the present invention Figure 2 .

[0028] In the figure:

[0029] 10: housing assembly; 20: shaft assembly; 30: drive assembly; 40: sliding assembly;

[0030] 11: shell body; 111: notch; 112: first shell; 113: second shell; 12: fixed bracket; 13: movable bracket; 131: first subshell; 132: second subshell;

[0031] 21: first connecting plate; 22: second connecting plate;

[0032] 31: slider; 32: linear drive module; 321: frame; 322: drive motor; 323: gear box; 324: linear screw;

[0033] 41: sliding protrusion; 42: strip slide rail. DETAILED DESCRIPTION

[0034] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0035] The embodiment of the present invention provides a heat dissipation control system, including a controller, a rear movable shaft structure and a prompt device; the controller obtains relevant information and determines whether the rear movable shaft structure needs to be started. When the information obtained reaches a set range value, it indicates that auxiliary heat dissipation is required, and the rear movable shaft structure moves backward to increase the heat dissipation space of the air outlet, thereby improving the heat dissipation efficiency of the air outlet. On the contrary, when the information obtained is outside the set range, the rear movable shaft structure is reset.

[0036] The following is a detailed description of the various structures of the heat dissipation control system provided by the present invention, as well as the connection relationship and position relationship between the various structures, in conjunction with the accompanying drawings.

[0037] like Figures 1 to 9 As shown, in the embodiment of the present invention, the controller includes an acquisition module; the acquisition module is configured to acquire the speed information of the cooling fan or the temperature information of the set position; the controller controls the start and stop of the linear drive module 32 according to the speed information or the temperature information.

[0038] For example, when the cooling fan is running at high load, its speed is high, and the speed of the fan can be obtained through the speed sensor. After the speed reaches the set range, the linear drive module 32 is started to move, that is, the shaft is moved backward (the specific backward movement method is described later). On the contrary, the linear drive module 32 is not started to move, or the started linear drive module 32 is reset in the reverse direction.

[0039] Or, for example, the temperature information of the set position is obtained through the temperature sensor. For example, the temperature sensor is set to the position of the air outlet. When the temperature of this part is too high, it indicates that further heat dissipation is required, and the linear drive module 32 can be started to move backward.

[0040] In the technical solution of the present invention, the speed information of the cooling fan or the temperature information of the set position are two relatively intuitive and accurate parameter information, but the acquired information may also be of other types, for example, the temperature information of the processor is acquired, or the running information of the software is acquired, for example, when the set software is running, the linear drive module 32 is started to move backward.

[0041] Or, for example, the start and stop of the backward movement of the linear drive module 32 is performed periodically. After the electronic product has run for a period of time, the linear drive module 32 is started to move backward, and then the linear drive module 32 is reset. After a period of reset, it is started to move backward again. This operation is repeated during the entire operation of the electronic product.

[0042] In an embodiment of the present invention, the controller further comprises a prompt information sending module, and the prompt information sending module is configured to send a prompt signal when the speed information or temperature information of the cooling fan is within a set range.

[0043] For example, the prompt information sending module is used to send a prompt signal to a display device, which performs a pop-up prompt through the display device; or the prompt information sending module is used to send a prompt signal to an audio-visual reminder device, which performs sound and / or photoelectric prompts through the audio-visual reminder device.

[0044] The operation of moving the shaft backward occurs during the operation of the electronic product. Therefore, the user can be prompted when moving backward and resetting. For example, a pop-up window prompt can be used, which can be placed in the middle or corner of the display screen. Sound and light prompts can also be used. Taking a laptop as an example, a display light is set at the edge of the touchpad. Under normal conditions, the display light is not on, or is always on in one color. When the shaft is moving backward or resetting, other colors are displayed to serve the purpose of reminder. For example, it is green under normal conditions and red when the shaft is moving backward or resetting.

[0045] In the embodiment of the present invention, a customized mode can also be used for the prompt when the rotating shaft moves. For example, a customized prompt can be provided according to the personalized needs of the user. For example, based on the pop-up window prompt, the prompt content can be customized, and based on the sound and light prompt, the sound content or photoelectric color can be customized. Or, for example, other reminder methods can be customized, such as vibration reminder or breathing light reminder.

[0046] Continue to refer Figures 1 to 9 As shown, in the embodiment of the present invention, the rear movable shaft structure includes a shell assembly 10, a shaft assembly 20 and a drive assembly 30; the shell assembly 10 includes a shell body 11, a fixed bracket 12 and a movable bracket 13, the shell body 11 includes a notch 111, the fixed bracket 12 and the movable bracket 13 are superimposed and located at the notch 111, and the fixed bracket 12 is fixedly connected to the shell body 11.

[0047] In an embodiment of the present invention, the rotating shaft is designed to be movable, so that part of the shell assembly 10 is designed as a split structure, that is, the shell assembly 10 is not a complete whole. In order to reduce the difference in appearance, the outer shape area of ​​the shell assembly 10 can be an integral structure when the rotating shaft structure is not moved backward.

[0048] For example, the shell body 11 includes a first shell 112 and a second shell 113, and the first shell 112 and the second shell 113 are respectively provided with notches 111, and the fixed bracket 12 is connected to the inner wall of the first shell 112 or the second shell 113; the movable bracket 13 includes a first sub-shell 131 and a second sub-shell 132, the first sub-shell 131 is arranged at the notch 111 position of the first shell 112, and the second sub-shell 132 is arranged at the notch 111 position of the second shell 113, and the first connecting plate 21 and the linear drive module 32 are connected to the first sub-shell 131 or the second sub-shell 132.

[0049] The first sub-shell 131 and the second sub-shell 132 are respectively located on both sides of the fixing bracket 12, and the contours of the first sub-shell 131 and the second sub-shell 132 are the same as the cross-sectional shape of the notch 111. In a normal state (not moved backward), the first sub-shell 131 and the second sub-shell 132 are located in the notch 111, and their edge contours form a complete structure with the contours of the first shell 112 and the second shell 113.

[0050] The first connecting plate 21 is connected to the edge of the first sub-shell 131, so that when the shaft assembly 20 is moved backward, the moving distance can be maximized. For example, the moving range of the rear movable shaft structure is 5 mm to 15 mm. For example, the moving distance of the rear movable shaft structure is 10 mm, but when there is a need for heat dissipation, the air outlet increases the heat dissipation space by 10 mm, so that the heat dissipation is more sufficient, the backflow is reduced, and the heat dissipation efficiency is improved.

[0051] For example, a sliding assembly 40 is respectively arranged between the first sub-shell 131 and the first shell 112, and between the first sub-shell 131 and the fixed bracket 12, and / or, a sliding assembly 40 is respectively arranged between the second sub-shell 132 and the second shell 113, and between the second sub-shell 132 and the fixed bracket 12; the sliding direction of the sliding assembly 40 is the same as the moving direction of the linear drive module 32. For example, the sliding assembly 40 includes a sliding protrusion 41 and a bar slide 42; the sliding protrusion 41 is arranged on the first sub-shell 131 and / or the second sub-shell 132, and the bar slide 42 is arranged on the first shell 112 and / or the second shell 113; or, the sliding protrusion 41 is arranged on the first shell 112 and / or the second shell 113, and the bar slide 42 is arranged on the first sub-shell 131 and / or the second sub-shell 132.

[0052] As shown in the figure, it includes two groups of sliding components 40, one group is located on both sides of the first sub-shell 131, sliding protrusions 41 are respectively arranged on both sides of the first sub-shell 131, and strip slide rails 42 are respectively arranged on the fixed bracket 12 on the same side, and the sliding distance of the sliding protrusion 41 in the strip slide rail 42 is the moving distance of the rear movable shaft structure; the other group is located on the end surface of the first sub-shell 131 where the shaft assembly 20 is installed, and two parallel sliding protrusions 41 are arranged on the end surface, and a strip slide rail 42 is arranged on the fixed bracket 12, and the strip slide rail 42 is used to cooperate with the sliding protrusion 41 for guiding.

[0053] In an embodiment of the present invention, the hinge assembly 20 includes a first connecting plate 21 and a second connecting plate 22. The first connecting plate 21 is connected to the first sub-shell 131 or the second sub-shell 132, and the second connecting plate 22 is used to connect to the shell of other structures. Taking a laptop computer as an example, the hinge assembly 20 is set on the shell of the system end, and the second connecting plate 22 is used to connect to the shell of the display end.

[0054] For example, a sliding assembly 40 is arranged between the fixed bracket 12 and the first connecting plate 21. As shown in the figure, a sliding protrusion 41 is arranged on the first connecting plate 21, and a strip groove matching with the sliding protrusion 41 is arranged on the fixed bracket 12. When the rotating shaft assembly 20 moves, the sliding protrusion 41 and the strip groove cooperate for guidance.

[0055] Continue to refer Figures 1 to 9 As shown, in the embodiment of the present invention, the driving assembly 30 includes a slider 31 and a linear driving module 32, the linear driving module 32 is slidably connected to the slider 31, the slider 31 is connected to the fixed bracket 12, the linear driving module 32 is connected to the movable bracket 13, and the linear driving module 32 is used to drive the movable bracket 13 and the rotating shaft assembly 20 to move to the outside of the notch 111.

[0056] The rearward movement or reset of the rear movable shaft structure is adjusted by controlling the forward rotation or reverse rotation of the linear drive module 32. For example, the linear drive module 32 includes a frame 321, a drive motor 322, a gear box 323 and a linear screw 324; the drive motor 322, the gear box 323 and the linear screw 324 are arranged on the frame 321, and the frame 321 is connected to the first sub-shell 131 or the second sub-shell 132; the output shaft of the drive motor 322 is connected to the driving gear of the gear box 323, the linear screw 324 is connected to the driven gear of the gear box 323, and the linear screw 324 is screwed to the slider 31.

[0057] By controlling the forward rotation or reverse rotation of the driving motor 322, the forward rotation or reverse rotation of the linear screw 324 can be controlled, thereby realizing the position adjustment of the rear movable shaft structure. For example, the gear box 323 can adjust the number of gears according to the speed matching, that is, a plurality of intermediate gears can be meshed between the driving gear and the driven gear.

[0058] For example, the linear drive module 32 may also adopt other telescopic driving modes, such as cylinder driving.

[0059] For example, the setting direction of the linear screw 324 is the moving direction of the rotating shaft assembly 20, or the setting direction of the linear screw 324 is perpendicular to the moving direction of the rotating shaft assembly 20. In this structure, the slider 31 can swing along the set angle. As the linear screw 324 and the slider 31 rotate relative to each other, the sliding and swinging drive the fixed bracket 12 to move along the moving direction of the rotating shaft assembly 20.

[0060] An embodiment of the present invention provides an electronic product, including the above-mentioned rear movable hinge structure or including the above-mentioned heat dissipation control system. Taking the electronic product as a laptop computer as an example, the laptop computer includes a system end and a display end, wherein the rear movable hinge structure is arranged at the system end, and the second connecting plate 22 of the hinge assembly 20 is connected to the display end.

[0061] When the laptop starts running and runs for a period of time or runs large software, the laptop runs at a high load and its internal temperature rises. When the detected temperature or the fan speed is higher than the set conditions, a message pops up at the lower right corner of the screen on the display end, notifying the user that the shaft is about to start moving backward. At the same time, the color of the display light on the touch panel will change from green to red, warning the system that the temperature is too high and the shaft starts to move backward. When the drive motor 322 (such as a servo motor) receives a signal from the system, it drives the linear screw 324 to rotate, causing the shaft to move backward, and the air outlet on the system end has more sufficient heat dissipation space.

[0062] The laptop computer continues to run after the hinge moves backward. When the system temperature or fan speed is lower than the set conditions, a message pops up at the lower right corner of the display screen to notify the user that the hinge is about to start resetting. At the same time, the indicator light on the touchpad turns from red to green, and the servo motor moves in the opposite direction, causing the hinge to reset.

[0063] According to the technical solution of the present invention, after the shaft structure is moved backward, the obstruction of the air outlet can be alleviated or avoided, thereby improving the heat dissipation efficiency. The method of moving the shaft structure backward will not change other structures of the shell assembly 10, and can provide stable support.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0066] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A rear movable shaft structure, characterized in that: It comprises a housing assembly (10), a rotating shaft assembly (20) and a driving assembly (30); The housing assembly (10) comprises a housing body (11), a fixed bracket (12) and a movable bracket (13); the housing body (11) comprises a notch (111); the fixed bracket (12) and the movable bracket (13) are superimposed and located at the notch (111); and the fixed bracket (12) is fixedly connected to the housing body (11); The rotating shaft assembly (20) comprises a first connecting plate (21), wherein the first connecting plate (21) is connected to the movable bracket (13); The driving assembly (30) comprises a slider (31) and a linear driving module (32), wherein the linear driving module (32) is slidably connected to the slider (31), the slider (31) is connected to the fixed bracket (12), and the linear driving module (32) is connected to the movable bracket (13), and the linear driving module (32) is used to drive the movable bracket (13) and the rotating shaft assembly (20) to move to the outside of the notch (111).

2. The rear movable shaft structure according to claim 1, characterized in that: The shell body (11) comprises a first shell (112) and a second shell (113), the first shell (112) and the second shell (113) are respectively provided with the notch (111), and the fixing bracket (12) is connected to the inner wall of the first shell (112) or the second shell (113); The movable bracket (13) comprises a first sub-shell (131) and a second sub-shell (132); the first sub-shell (131) is arranged at the position of the notch (111) of the first shell (112); the second sub-shell (132) is arranged at the position of the notch (111) of the second shell (113); the first connecting plate (21) and the linear drive module (32) are connected to the first sub-shell (131) or the second sub-shell (132).

3. The rear movable shaft structure according to claim 2, characterized in that: A sliding assembly (40) is respectively arranged between the first sub-shell (131) and the first shell (112), and between the first sub-shell (131) and the fixed bracket (12); and / or a sliding assembly (40) is respectively arranged between the second sub-shell (132) and the second shell (113), and between the second sub-shell (132) and the fixed bracket (12); The sliding direction of the sliding component (40) is the same as the moving direction of the linear drive module (32).

4. The rear movable shaft structure according to claim 3, characterized in that: The sliding assembly (40) comprises a sliding protrusion (41) and a strip-shaped sliding rail (42); The sliding protrusion (41) is arranged on the first sub-shell (131) and / or the second sub-shell (132), and the strip slide rail (42) is arranged on the first shell (112) and / or the second shell (113); or, the sliding protrusion (41) is arranged on the first shell (112) and / or the second shell (113), and the strip slide rail (42) is arranged on the first sub-shell (131) and / or the second sub-shell (132).

5. The rear movable shaft structure according to claim 3, characterized in that: The linear drive module (32) comprises a frame (321), a drive motor (322), a gear box (323) and a linear lead screw (324); The driving motor (322), the gear box (323) and the linear screw (324) are arranged on the frame (321), and the frame (321) is connected to the first sub-shell (131) or the second sub-shell (132); The output shaft of the driving motor (322) is connected to the driving gear of the gear box (323), the linear screw (324) is connected to the driven gear of the gear box (323), and the linear screw (324) is threadedly connected to the slider (31).

6. A heat dissipation control system, characterized in that: It comprises the rear movable rotating shaft structure as claimed in any one of claims 1 to 5.

7. The heat dissipation control system according to claim 6, characterized in that: Also included is a controller, the controller including an acquisition module; The acquisition module is configured to acquire the rotation speed information of the cooling fan or the temperature information of the set position; The controller controls the start and stop of the linear drive module (32) according to the rotation speed information or the temperature information.

8. The heat dissipation control system according to claim 7, characterized in that: The controller further includes a prompt information sending module, and the prompt information sending module is configured to: When the speed information or the temperature information of the cooling fan is within a set range, the prompt information sending module is used to send a prompt signal.

9. The heat dissipation control system according to claim 8, characterized in that: The prompt information sending module is used to send a prompt signal to the display device, and a pop-up window prompt is performed through the display device; or The prompt information sending module is used to send a prompt signal to the sound and light reminder device, and the sound and light reminder device performs sound and / or photoelectric prompts.

10. An electronic product, characterized in that: It comprises the rear movable shaft structure as claimed in any one of claims 1 to 5 or comprises the heat dissipation control system as claimed in any one of claims 6 to 9.

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