CN1942082B - Sealed and covered electronic equipment - Google Patents

Abstract

The invention discloses a sealed and cover-type electronic device, which comprises a bottom plate and a heat dissipation adjustment mechanism. The heat dissipation adjustment mechanism includes a driving mechanism and a heat dissipation movable door, and the driving mechanism and the heat dissipation movable door are respectively movably connected to the bottom plate; Window, when the heat dissipation movable door is closed, the window is blocked, and when the heat dissipation movable door is opened, the window is exposed. When the notebook computer is placed on a certain platform, the reaction force of the platform drives the driving mechanism, and then the driving mechanism drives the heat dissipation movable door to open or widen, so as to achieve the purpose of increasing the size of the air outlet to enhance the heat dissipation capacity. When the notebook computer is shut down or sleeps and moves or flips away from the platform, the driving mechanism is driven by the force of the elastic component, and then the heat dissipation movable door is driven by the driving mechanism to close or close, thereby reducing or closing the size of the air outlet to suit Different cooling needs.

Description

Sealed and covered electronic equipment

technical field

The invention relates to a sealed and covered electronic device, in particular to a structural design of a heat dissipation adjustment mechanism for the sealed and covered electronic device.

Background technique

As a kind of sealed electronic equipment, with the rapid development of computer and semiconductor technology, the performance and integration of CPU, VGA, N/B and other main chips in the computer are getting higher and higher, so the heat generation is getting higher and higher. more and more. For a notebook computer with a small size, the heat dissipation problem has become a key issue and a bottleneck for fully exerting the performance of the notebook computer. In a relatively small space, solving the relatively large heat generation poses a severe challenge to the cooling capacity. If the notebook computer cannot dissipate heat properly, it will cause a crash due to the increase in temperature, which will affect the working performance of the notebook computer. .

With the development of notebook computers, more and more designers and users have paid more and more attention to solving the heat dissipation problem of notebook computers. There are many ways to improve the heat dissipation of notebook computers. Increasing the size of the air inlet without increasing the burden on the system is An important method, but increasing the air inlet to a certain size will affect the safety of the host. Therefore, the existing technical solutions basically improve the heat dissipation capacity through other methods.

Although Chinese Patent No. 99804892.5 discloses a portable computer with an expanded CPU module installed, it solves the problem of heat dissipation between the two major components of the notebook computer, the CPU module and the display module, and can even be cooled by the heat dissipation module of the CPU. It takes away the heat of the LCD, but it only solves the problem of how to exchange heat between the two heat dissipation components in different states; although the idea of heat exchange in different states is proposed, it does not fundamentally improve the heat dissipation capacity.

Chinese Patent No. 99211167.6 discloses a centrifugal air supply device, which increases the air intake volume through a centrifugal device. Although it can improve the heat dissipation capacity of the system, it increases the air intake speed through the action of external force, thereby increasing the air intake flow rate. of. This increases the burden on the system, which is equivalent to increasing the speed of the fan or the size of the fan, which increases the noise of the system. It does not increase the air intake to improve the heat dissipation efficiency without increasing the system burden, and does not fundamentally solve the efficiency. The problem.

At present, there is also a heat dissipation structure in which two fans are installed in the notebook computer, but the increased fan will definitely take up more internal space of the notebook computer, thereby increasing the volume of the notebook computer.

In short, the above-mentioned prior art cannot change the heat dissipation effect with the change of the heat dissipation demand, and improves the heat dissipation effect at the cost of increasing system noise and system burden, and fails to improve the heat dissipation efficiency without increasing the system burden.

Contents of the invention

The technical problem to be solved by the present invention is to provide a sealed and cover-type electronic device with a heat dissipation adjustment device.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a sealed and cover-type electronic device, including a bottom plate and a heat dissipation adjustment mechanism, the heat dissipation adjustment mechanism includes a driving mechanism and a heat dissipation movable door, and the driving mechanism is connected to the heat dissipation movable door; The drive mechanism and the heat dissipation movable door are respectively movably connected to the bottom plate; the bottom plate has a window, and when the sealed and cover-type electronic equipment is placed on the platform, the drive mechanism makes The heat dissipation movable door is opened, and the window is exposed. When the sealed and cover-type electronic device leaves the platform, the reaction force of the platform to the driving mechanism is released, and the heat dissipation movable door is closed, and the window is blocked.

Preferably, the sealed and cover-type electronic equipment further includes an adjustment component for adjusting the degree of opening and closing of the heat dissipation movable door, and the adjustment component is arranged under the bottom plate.

Preferably, the drive mechanism includes a projection with a small top and a large bottom, a transmission mechanism and a first elastic component, the projection is movably connected to the bottom plate, and is movably connected to the transmission mechanism on the bottom plate, the first One end of the elastic component is fixed to the electronic device, and the other end is connected to the transmission mechanism, and the transmission mechanism is connected to the heat dissipation movable door; when the sealed and closed electronic device is placed on the platform, the protrusion Under the reaction force of the platform, it slides upwards, drives the transmission mechanism to move, and forms a squeeze on the first elastic member, so that the heat dissipation movable door opens; when the sealed and cover-type electronic device leaves the platform, the The protrusion protrudes outward due to its own weight, the first elastic member pushes the transmission mechanism to return to its original position, and the transmission mechanism drives the heat dissipation movable door to close.

Preferably, the transmission mechanism further includes a positioning device, the positioning device includes a positioning base and a positioning protrusion, the positioning base is provided with at least two arc-shaped slots, and the positioning protrusions correspond to the shapes of the arc-shaped slots The positioning base is located on the transmission mechanism, and one end of the positioning projection is fixed to the electronic device. When the projection moves upward under the reaction force of the platform, the transmission mechanism moves horizontally under the extrusion of the projection , so that the positioning base positioned on it moves accordingly, so that the positioning protrusion is clamped in the arc-shaped slot provided on the positioning base.

Preferably, the transmission mechanism includes a linear gear mechanism located at the lower part of the transmission mechanism; the heat dissipation movable door is arranged in the window and includes at least one wind deflector; each wind deflector runs through the window , one end is fixed on the bottom plate, and the other end is a circular gear mechanism, which is meshed with the linear gear mechanism. When the bump moves upward under the reaction force of the platform, the transmission mechanism The horizontal movement occurs under the extrusion of the protrusion, and the horizontal movement is converted into the rotational displacement of the air deflector in the heat dissipation movable door through the meshing connection between the linear gear mechanism at the lower part of the transmission mechanism and the circular gear mechanism.

Preferably, the drive mechanism further includes a second elastic member, one end of which is fixed to the electronic device and the other end is connected to the transmission mechanism, when the electronic device leaves the platform, the second elastic The part pushes the said bump back into its original position.

Preferably, the protrusion is a right-angled trapezoidal block, wherein the inclined surface is movably connected with the transmission mechanism.

The present invention also provides another preferred solution, the drive mechanism includes a spring located under the bottom plate, one end of the spring is fixed to the bottom plate, and the other end is connected to the heat dissipation movable door; the drive mechanism also includes a The third elastic part on the bottom plate is located on one side of the window, one end is fixed to the electronic device, and the other end is connected to the heat dissipation movable door. When the electronic device is placed on the platform, the The elastic piece is flattened and stretched by the reaction force of the platform, thereby pushing the heat dissipation movable door to open; when the electronic device leaves the platform, the platform’s force on the elastic piece is released, and the heat dissipation movable door is closed on the third elastic part. return to its original position under force.

Preferably, the heat dissipation movable door is a flat plate, and when fully opened, the heat dissipation movable door is located parallel above the bottom plate; and a plurality of heat dissipation door guide blocks are arranged on the bottom plate, and the heat dissipation door guide blocks and The bottom plate forms a mezzanine space, and the heat dissipation movable door is partially located in the mezzanine space.

Preferably, the heat dissipation adjustment mechanism further includes a stop positioning block, which is fixed on the bottom plate and arranged on the other side of the window corresponding to the third elastic member.

Compared with prior art, the present invention has following advantage:

Since the heat dissipation regulating mechanism including the driving mechanism and the heat dissipation movable door is arranged on the bottom plate, when the notebook computer is placed on a certain platform to run, the driving mechanism is driven by the reaction force of the platform, and then the heat dissipation movable door is driven by the driving mechanism to open or Open larger, so as to achieve the purpose of increasing the size of the air outlet to enhance the cooling capacity; that is, when the notebook computer is running a large program, the air volume can be increased by opening the larger air outlet to improve the heat dissipation effect. When the notebook computer is turned off or sleeps and moves or flips away from the platform, the driving mechanism is driven by the force of the elastic component, and then the cooling movable door is driven by the driving mechanism to close or close the cooling movable door, thereby reducing or closing the size of the air outlet. To adapt to different heat dissipation requirements.

Since the present invention changes the cooling effect by changing the size of the tuyere without increasing the burden on the system, and the force for changing the size of the tuyere comes from the reaction force of the platform, that is, the speed of the fan is reduced to reduce the noise under the same cooling capacity, or The size and weight of the fan are reduced, which meets the requirements of lighter and thinner notebook computers; in addition, because there is no need for multiple fans or other heat sinks, it is beneficial to reduce the overall cost.

Due to the structural design of the adjusting part of the present invention, the heat dissipation movable door can be in any most suitable opening and closing position and remain stable, so that the most suitable tuyere size for heat dissipation requirements can be obtained and the most suitable heat dissipation effect can be achieved. It can be applied to the heat dissipation adjustment of various sealed and cover-type electronic and electrical equipment, thereby avoiding the burden of increasing the heat dissipation volume and being safe and reliable.

Since the preferred heat dissipation movable door of the present invention is arranged on the bottom plate of the notebook computer, when the notebook computer is placed on a certain plane, it is safe even if the air outlet is large, and it is invisible to others. And when the notebook computer is turned over to place or move the computer, the notebook computer is separated from the desktop, and the cooling movable door is closed in this state. Therefore, the present invention not only satisfies the requirement of safety, but also satisfies the requirement of heat dissipation, and at the same time, no large holes can be seen in the appearance.

Since the present invention utilizes the reaction force of the platform to push the driving mechanism to work, and an elastic component is provided to ensure that the driving mechanism can return to its original position, that is, the automatic adjustment of the heat dissipation movable door of the heat dissipation adjustment mechanism is realized.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of the three-dimensional structure when the heat dissipation movable door of the heat dissipation adjustment mechanism of a preferred embodiment of the present invention is opened;

Fig. 2 is a three-dimensional structural schematic view when the heat dissipation movable door of the heat dissipation regulating mechanism of the preferred embodiment shown in Fig. 1 is closed;

Fig. 3 is a schematic diagram of the meshing structure of the transmission mechanism and the wind deflector gear of the preferred embodiment of the heat dissipation adjustment mechanism shown in Fig. 1;

Fig. 4 is a top view structural diagram of another preferred embodiment of the present invention when the heat dissipation movable door of the heat dissipation adjustment mechanism is closed;

Fig. 5 is a schematic bottom view of the heat dissipation movable door of the preferred embodiment shown in Fig. 4 when the heat dissipation movable door is closed;

Fig. 6 is a top view structure schematic diagram when the heat dissipation movable door of the heat dissipation adjusting mechanism of the preferred embodiment shown in Fig. 4 is opened;

Fig. 7 is a schematic bottom view of the heat dissipation regulating mechanism of the preferred embodiment shown in Fig. 4 when the heat dissipation movable door is opened;

FIG. 8 is a schematic diagram of the position and structure of the adjustment component of the preferred embodiment shown in FIG. 4 .

Detailed ways

In Fig. 1 , Fig. 2 and Fig. 3 , which are structural schematic diagrams of a preferred embodiment of the present invention, the sealed and cover-type electronic device includes a bottom plate 1 and a heat dissipation regulating mechanism. The heat dissipation regulating mechanism includes a drive mechanism 2 and a heat dissipation movable door 3; the bottom plate 1 has a window, which is an air inlet in the present invention; of course, it can also be an air outlet. When the heat dissipation movable door 3 was closed, the window was blocked, that is, the air inlet was the minimum; when the heat dissipation movable door 3 was opened, the window was exposed, that is, the air inlet was the largest. The sealed and covered electronic device can be a notebook computer, high-frequency microwave testing equipment, etc., which needs heat dissipation. The following uses a notebook computer as an example to illustrate each accompanying drawing.

In FIG. 1 , the three-dimensional structural diagram of the heat dissipation regulating mechanism when the heat dissipation movable door 3 is opened, the driving mechanism 2 includes a projection 21 with a small top and a large bottom, a transmission mechanism 22 and a first elastic member 23 . The bump 21 is movably connected on the base plate 1 of the notebook computer, and there is a hole on the base plate 1. The bump 21 is a structure with a small top and a large bottom, that is, the side where the bump 21 and the transmission mechanism 22 are in close contact is an inclined surface, so that the bump 21 is in close contact with the transmission mechanism 22. The block 21 slides upward under the reaction force of the desktop, and then drives the transmission mechanism 22 to move toward the first elastic member 23, that is, the vertical displacement of the protrusion 21 is converted into the horizontal displacement of the transmission mechanism 22. In this preferred embodiment, the protruding block 21 is a right-angled trapezoidal block. This structure can ensure a slope with a large slope to generate a large horizontal displacement; the other vertical surface ensures that the surface and the hole can be closely touch.

The transmission mechanism 22 is arranged on the bottom plate 1. Since the horizontal displacement of the transmission mechanism 22 is pushed by the projection 21 after being stressed, and when the projection 21 is not subjected to the reaction force of the desktop, the transmission structure needs to return to its original position. But at this moment, the projection 21 cannot give the transmission mechanism 22 the power to return to its original position. Therefore, a first elastic component 23 is provided at the other end of the transmission structure. One end of the first elastic component 23 is fixed on the electronic device, and the other end is connected to the transmission mechanism 22 . Therefore, when the notebook computer leaves the desktop, the protrusion 21 protrudes outward without the reaction force of the desktop, and the first elastic member 23 pushes the transmission mechanism 22 to return to its original position.

When the notebook computer left the desktop, the projection 21 stretched out without the reaction force of the desktop. At this moment, the projection 21 stretched out of the notebook computer, relying on the promotion of the transmission mechanism 22 on the one hand, and relying on its own gravity on the one hand. But these two parts of force still can't reach the optimal effect, so in this preferred embodiment, a second elastic member 24 is set above the projection 21, one end of the second elastic member 24 is fixed on the notebook computer, and the other end is connected to the notebook computer. The above bump 21. Therefore, when the notebook computer leaves the desktop, the protrusion 21 is not subject to the reaction force of the desktop, and the second elastic member 24 pushes the protrusion 21 to protrude outward, so that the protrusion 21 returns to its original position.

When the notebook computer is placed on the desktop or other platform AA, the projection 21 slides upwards under the reaction force of the desktop, in order to make the vertical displacement of the projection 21 within an optimal range, a bottom of the projection 21 can be provided A protrusion, which prevents the protrusion 21 from fully entering the inside of the notebook computer; a protrusion may also be provided on the top of the protrusion 21, which prevents the protrusion 21 from fully extending out of the notebook computer. Of course, in order to make the vertical displacement of the bump 21 within an appropriate range, a stop member can also be arranged above the vertical displacement of the bump 21, and the stop member is fixed on the bottom plate 1 or the side wall of the notebook computer. , so that the displacement of the bump 21 into the interior of the notebook computer ends here; the second elastic member 24 can be used to push the bump 21 to protrude outward, so that the bump 21 returns to its original position, and because the two are connected to each other, the bump 21 won't stick out of the laptop completely.

Fig. 3 is a schematic diagram of the gear engagement structure between the transmission mechanism 22 and the wind deflector 31 in the preferred embodiment shown in Fig. 1; the transmission mechanism 22 includes a linear gear mechanism 222, which is arranged on the bottom plate 1; Set in the window, including a plurality of wind deflectors 31, each wind deflector 31 runs through the window, one end is fixed to the bottom plate 1, and the other end is a circular gear mechanism 33, the circular gear mechanism 33 and The linear gear mechanism 222 is meshedly connected. Of course, the following structure can also be adopted: each wind deflector 31 is connected to one wind deflector shaft 32; one end of the wind deflector shaft 32 is fixed to the bottom plate 1, and the other end is a circular gear mechanism 33, and the circular gear The mechanism 33 is meshed with the linear gear mechanism 222 . The circular gear mechanism 33 can only have gears in half, because the rotation angle of the wind deflector 31 is relatively small. The gear combination structure described above is not the only one that can be adopted in the present invention, and a cam structure or a belt transmission structure capable of converting horizontal displacement into rotational displacement are optional structures.

The length of the wind deflector 31 is equivalent to the length of one side of the window, so the two ends of the wind deflector 31 are arranged on the corresponding two sides of the window, one end is fixed on the base plate 1 by the fixing device 34, and the other end can hold the circular The upper part with gears of the gear mechanism 33 meshes with the linear gear mechanism of the transmission mechanism 22, and the lower part without gears is arranged in a slot of the bottom plate 1, so as to ensure that the wind deflector 31 can rotate without displacement in other directions . Of course, the cylindrical part at one end of the wind deflector 31 can also be arranged in an arc-shaped slot of the bottom plate 1 to achieve the above effect; the cylindrical part at one end of the wind deflector 31 can also be movably connected to the bottom plate by using an additional fastening bayonet. 1 on. As for the quantity of the wind deflector 31, it is jointly determined according to the width of the wind deflector 31 and the size of the window.

The transmission mechanism 22 also includes a positioning device 221, the positioning device 221 includes a positioning base 2211 and a positioning protrusion 2212, the positioning base 2211 is provided with a plurality of arc-shaped slots, the shape of the positioning protrusion 2212 and the arc-shaped slots Correspondingly: the positioning base 2211 is located on the transmission mechanism 22, one end of the positioning protrusion 2212 is fixed to the electronic device, and the other end is stuck in the arc-shaped slot. It is precisely because of the design of the arc-shaped slot that when the positioning projection 2212 snaps into the positioning base 2211, the heat dissipation movable door 3 is guaranteed to be relatively stable, but the driving mechanism 2 does not require a large force to push the heat dissipation movable door 3. The positioning base 2211 in the embodiment shown in FIG. 1 is provided with two arc-shaped slots on the front side and the rear side.

Fig. 1 is the situation when the cooling movable door 3 is opened. At this moment, the notebook computer is placed on the desktop, and the bump 21 slides upward under the reaction force of the desktop. When the horizontal movement occurs below, the linear gear mechanism 222 at its lower part drives the circular gear mechanism 33 engaged with it to rotate, thereby converting the horizontal displacement into the circular motion of the wind deflector 31; the circular gear mechanism 33 is positioned on the wind deflector 31, the wind deflector 31 rotates under the connection driven by the gear mesh, and then realizes the regulation that the tuyere becomes larger. At this time, the positioning protrusion 2212 is snapped into the arc-shaped slot provided on the positioning base 2211, thereby ensuring the stability of the heat dissipation movable door 3 in a fully opened state. The rotation of wind deflector 31 makes heat dissipation movable door 3 fully open, and this moment is the situation of maximum air intake, if want to close heat dissipation movable door 3, then notebook computer can be removed from desktop and taken away (situation shown in Figure 2) . At this time, the bump 21 moves downward under the action of the second elastic member 24, and the transmission mechanism 22 moves forward under the action of the first elastic member 23, so that the heat dissipation movable door 3 and the transmission mechanism 22 are driven by the meshing connection of the transmission mechanism 22. Rotate to close, at this time the positioning projection 2212 snaps into the rear side slot of the positioning base 2211 so that the heat dissipation movable door 3 is in a completely closed state. To sum up, it can be seen that as long as the notebook is placed on the desktop, the cooling door will automatically open; as long as the notebook is off the desktop, the cooling door will automatically close.

Figure 4-Figure 8 shows another preferred embodiment of the present invention, the drive mechanism includes a shrapnel located below the bottom plate 1 (the bottom view shown in Figure 5), preferably the shrapnel is V-shaped , Of course, it can also be a U-shaped, W-shaped, etc. shrapnel structure with excellent elasticity. One end of the V-shaped shrapnel 25 is fixed to the bottom plate 1 , and the other end is connected to the heat dissipation movable door 3 . Since the restored elastic force of the V-shaped elastic sheet 25 may not achieve the best effect, it is preferable to arrange a third elastic component 26 at the other end of the heat dissipation movable door 3 . The elastic component is located on the bottom plate 1 , one end is fixed to the electronic device through a fixing block 261 , and the other end is connected to the heat dissipation movable door 3 through a fixing device 262 , and an elastic element 263 is used to connect it therebetween. When the heat dissipation movable door 3 was opened, the V-shaped shrapnel 25 produced an appropriate thrust due to the reaction force of the desktop; position, and can make up for the insufficient recovery force of the V-shaped shrapnel 25, prolonging the service life of the V-shaped shrapnel 25.

In the top view structure schematic diagram when the heat dissipation movable door 3 shown in Fig. 4 is closed, in order not to make the displacement too large when the third elastic member 26 pushes the heat dissipation movable door 3, a stopper is provided on the corresponding side of the window and the third elastic member 26. The moving positioning block 36 is fixed on the base plate 1, so as to ensure that the cooling movable door 3 will not exceed this position when it is closed, thereby ensuring the service life of the V-shaped shrapnel 25. The elastic component in the present invention may be a spring or an elastic element such as a shrapnel.

The radiating movable door 3 in the embodiment shown in Fig. 4 is a flat plate, when the radiating movable door 3 shown in Fig. 6 is fully opened, the radiating movable door 3 is located in parallel above the base plate 1; and on the base plate 1 is provided with a plurality of heat dissipation door guide blocks 35, and the heat dissipation door guide blocks 35 form an interlayer space with the bottom plate 1, and the heat dissipation movable door 3 is partially located in the interlayer space. The interlayer space formed by the heat dissipation door guide block 35 is to ensure that the heat dissipation movable door 3 moves horizontally within the range surrounded by the bayonet without vertical displacement. Of course, the vertical and horizontal in this specification are all described relative to the bottom plate 1 of the notebook computer.

Fig. 4 shows that the cooling movable door 3 is closed, at this time, the cooling movable door 3 remains closed under the action of the third elastic member 26, and the cooling door guide block 35 is arranged around the cooling movable door 3; Fig. 6 shows When the cooling movable door 3 is opened, when the notebook computer is placed on the desktop or other platform AA, the V-shaped shrapnel 25 in FIG. The component 26 moves toward the fixed block 261, so that the heat dissipation movable door 3 is opened, and the tuyere is the largest at this moment. As long as the notebook computer leaves the platform AA, the force of the platform AA on the V-shaped shrapnel 25 is released, and the heat dissipation movable door 3 moves along the guide block 35 to the stop positioning block 36 under the force of the third elastic member 26, so that the heat dissipation Dodge door 3 is closed, reaches the state shown in Figure 4.

FIG. 8 is a schematic diagram of the position and structure of the adjusting component 4 of the preferred embodiment shown in FIG. 4 . The adjustment part 4 is arranged under the base plate 1, and the screw structure can be used to adjust the distance between the notebook base plate 1 and the desktop by turning the screw; the adjustment part 4 with bayonet positioning function can also be used to adjust the notebook base plate 1 step by step distance from the desktop. Just because the present invention utilizes the notebook computer to be placed on the desktop, the reaction force of the desktop to the driving mechanism causes the driving mechanism to displace, so the distance between the notebook base plate 1 and the desktop determines the displacement of the driving mechanism, and then determines the heat dissipation. The size of the trapdoor 3. Therefore, such a simple structure can make the heat dissipation movable door 3 be in any most suitable opening position and keep stable, so as to obtain the best air inlet or air outlet size. At the same time, the present invention can also realize stepless or stepwise adjustment of different sizes of openings, and can be applied to the heat dissipation adjustment of various sealed and covered electronic and electrical equipment, thereby avoiding the burden of increasing the heat dissipation volume and being safe and reliable.

In short, the core idea of the present invention is to provide a sealed and cover-type electronic device that can conveniently adjust the size of the heat dissipation movable door 3 . The driving mechanism is driven by the reaction force of the platform AA, and then the heat dissipation movable door 3 is driven to open by the driving mechanism, so as to achieve the purpose of increasing the size of the tuyere to enhance the heat dissipation capacity.

The above only takes the notebook computer as an example to introduce the principle and implementation of the sealed and covered electronic equipment provided by the present invention in detail. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for Those skilled in the art will have changes in the specific implementation and scope of application according to the idea of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. A sealed cover-type electronic device, comprising a bottom plate, characterized in that: it also includes a heat dissipation adjustment mechanism, and the heat dissipation adjustment mechanism includes a drive mechanism and a heat dissipation movable door, and the drive mechanism is connected with the heat dissipation movable door; the drive mechanism and the heat dissipation movable door The doors are respectively movably connected to the bottom plate; the bottom plate has a window, and when the sealed and cover-type electronic equipment is placed on the platform, the drive mechanism makes the heat dissipation movable door When the window is opened, the window is exposed. When the sealed and cover-type electronic device leaves the platform, the reaction force of the platform to the driving mechanism is released, and the heat dissipation movable door is closed to cover the window. 2. A sealed and covered electronic device as claimed in claim 1, characterized in that: It also includes an adjusting component for adjusting the degree of opening and closing of the heat dissipation movable door, and the adjusting component is arranged under the bottom plate. 3. A sealed and covered electronic device as claimed in claim 1 or 2, characterized in that: The drive mechanism includes a projection with a small top and a large bottom, a transmission mechanism and a first elastic component. The projection is movably connected to the bottom plate and is movably connected to the transmission mechanism on the bottom plate. One end of the first elastic component It is fixed on the electronic equipment, and one end is connected to the transmission mechanism, and the transmission mechanism is connected to the heat dissipation movable door; when the sealed and cover-type electronic equipment is placed on the platform, the protrusion is on the platform. Sliding upward under the reaction force, driving the transmission mechanism to move, and forming a squeeze on the first elastic member, so that the heat dissipation movable door is opened; when the sealed and cover-type electronic device leaves the platform, the protrusion Since the self-weight protrudes outward, the first elastic member pushes the transmission mechanism to return to its original position, and the transmission mechanism drives the heat dissipation movable door to close. 4. A sealed and covered electronic device as claimed in claim 3, characterized in that: The transmission mechanism also includes a positioning device, the positioning device includes a positioning base and a positioning protrusion, the positioning base is provided with at least two arc-shaped slots, and the positioning protrusions correspond to the shapes of the arc-shaped slots; the positioning base Located on the transmission mechanism, one end of the positioning projection is fixed to the electronic device, when the projection moves upward under the reaction force of the platform, the transmission mechanism moves horizontally under the extrusion of the projection, so that the positioning The positioning base on it moves accordingly, and the positioning projection is clamped in the arc-shaped slot provided on the positioning base. 5. A sealed and covered electronic device as claimed in claim 3, characterized in that: The transmission mechanism includes a linear gear mechanism, which is located at the lower part of the transmission mechanism; the heat dissipation movable door is arranged in the window, and includes a plurality of air deflectors; each air deflector runs through the window, and one end is fixed On the bottom plate, the other end is a circular gear mechanism, which is meshed with the linear gear mechanism. When the projection moves upward under the reaction force of the platform, the transmission mechanism The horizontal movement occurs under the extrusion of the protrusion, and the horizontal movement is converted into the rotational displacement of the air deflector in the heat dissipation movable door through the meshing connection between the linear gear mechanism at the lower part of the transmission mechanism and the circular gear mechanism. 6. A sealed and covered electronic device as claimed in claim 3, characterized in that: The drive mechanism further includes a second elastic component, one end of which is fixed to the electronic device, and one end is connected to the bump, when the electronic device leaves the platform, the second elastic component pushes the electronic device the above bump to return to its original position. 7. A sealed and covered electronic device as claimed in claim 3, characterized in that: The protrusion is a right-angled trapezoidal block, wherein the inclined surface is movably connected with the transmission mechanism. 8. A sealed and covered electronic device as claimed in claim 1 or 2, characterized in that: The driving mechanism includes an elastic piece located under the bottom plate, one end of the elastic piece is fixed to the bottom plate, and the other end is connected to the heat dissipation movable door; the driving mechanism also includes a third elastic component located on the bottom plate, The elastic component is located on one side of the window, one end is fixed to the electronic device, and the other end is connected to the heat dissipation movable door. When the electronic device is placed on the platform, the elastic piece receives the reaction force of the platform and Flattening and stretching, thereby pushing the heat dissipation movable door to open; when the electronic device leaves the platform, the force exerted by the platform on the shrapnel is released, and the heat dissipation movable door returns to its original position under the force of the third elastic component. 9. A sealed and covered electronic device as claimed in claim 8, characterized in that: The heat dissipation movable door is a flat plate, and when fully opened, the heat dissipation movable door is located parallel to the top of the bottom plate; and a plurality of heat dissipation door guide blocks are arranged on the bottom plate, and the heat dissipation door guide blocks are connected with the bottom plate A mezzanine space is formed, and the heat dissipation movable door is partially located in the mezzanine space. 10. A sealed and covered electronic device as claimed in claim 8, characterized in that: The heat dissipation adjustment mechanism further includes a stop positioning block, which is fixed on the bottom plate and arranged on the other side of the window corresponding to the third elastic component.

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