CN115348803A - Heat radiator - Google Patents

Abstract

The invention discloses a heat dissipation device, which comprises a box body, a plurality of air inlet channels, a plurality of ventilation channels and an air outlet, wherein the number of the ventilation channels is at least two, each ventilation channel is communicated with the air inlet and the air outlet, and electronic equipment is arranged on the inner wall of at least one ventilation channel; the heat radiation fan is arranged at the air inlet and/or the air outlet and is used for blowing air into the ventilation flow channel and/or sucking air out of the ventilation flow channel; the heat conducting piece is connected with the electronic equipment and used for conducting heat emitted by the electronic equipment to one or more than two ventilation flow channels.

Description

Heat radiator

Technical Field

The invention relates to the technical field of heat dissipation, in particular to a heat dissipation device.

Background

At present, when a plurality of devices are installed in a box body, the electronic components generate electric heat during working, and the requirements can be met only by being equipped with good heat dissipation.

In the prior art, a fan is generally adopted for heat dissipation, but the fan occupies a certain space, so that in a box body with a narrow internal space, if a smaller fan is adopted, the heat dissipation efficiency is affected, and the heat dissipation requirement can not be met; however, if a large fan is used, the internal installation space is compressed, the gap between the devices is too small, and a potential safety hazard is likely to occur.

Therefore, a heat dissipation device with high heat dissipation efficiency needs to be provided.

Disclosure of Invention

In order to overcome at least one of the above drawbacks of the prior art, an object of the present invention is to provide a heat dissipation device, so as to solve the problem of poor heat dissipation of the heat dissipation device in the prior art.

The technical scheme adopted by the invention for solving the problems is as follows:

according to an aspect of an embodiment of the present invention, a heat dissipation device is provided, including a box body provided with an air inlet, at least two ventilation channels and an air outlet, wherein each ventilation channel is communicated with the air inlet and the air outlet, and an electronic device is installed on an inner wall of at least one ventilation channel; the heat radiation fan is arranged at the air inlet and/or the air outlet and is used for blowing air into the ventilation flow channel and/or sucking air out of the ventilation flow channel; and the heat conducting piece is connected with the electronic equipment and is used for conducting heat emitted by the electronic equipment to one or more than two ventilation flow channels.

According to the technical scheme, the embodiment of the invention at least has the following advantages and positive effects:

in the heat dissipation device, at least two ventilation flow channels are arranged in the box body, air outside the box body is blown into the ventilation flow channels through the air inlet by the cooling fan and then is exhausted from the air outlet, or the air in the ventilation flow channels is sucked at the air outlet by the cooling fan, the air outside the box body can be supplemented into the ventilation flow channels through the air inlet, one or more than two electronic devices are fixedly arranged on the inner walls of the ventilation flow channels, heat generated by the electronic devices is conducted by the heat conducting piece, so that the heat generated by the electronic devices is conducted into the one or more than two ventilation flow channels through the heat conducting piece, the heat generated by the electronic devices in the box body can be distributed into the more than two ventilation flow channels, and airflow flowing in the more than two ventilation flow channels simultaneously can take away the heat in the box body, thereby realizing the effect of simultaneously conducting heat dissipation by the plurality of ventilation flow channels, improving the heat dissipation efficiency and meeting the actual application requirements of multi-device installation.

Drawings

Fig. 1 is a schematic view of an overall structure of a heat dissipation device according to one or more embodiments of the present invention;

FIG. 2 is an exploded view of a heat dissipation device according to one or more embodiments of the present disclosure;

FIG. 3 isbase:Sub>A cross-sectional view taken along the line A-A in FIG. 1;

FIG. 4 is a first diagram illustrating a state where a heat dissipation fan of the heat dissipation device is disposed to slide relative to a housing according to one or more embodiments of the present invention;

FIG. 5 is a second diagram illustrating a state where a heat dissipation fan of the heat dissipation apparatus slides relative to the housing according to one or more embodiments of the present invention;

FIG. 6 is a first diagram illustrating a state where a heat dissipation fan of the heat dissipation device is disposed to rotate relative to a housing according to one or more embodiments of the present invention;

FIG. 7 is a second diagram illustrating a state in which a heat dissipation fan of the heat dissipation apparatus is disposed to rotate relative to the housing according to one or more embodiments of the present invention;

FIG. 8 is a third view of a heat dissipation fan of the heat dissipation device configured to rotate relative to the housing in accordance with one or more embodiments of the present invention;

FIG. 9 is a first view illustrating a sliding state of the air guiding plate of the heat dissipating device relative to the case according to one or more embodiments of the present invention;

FIG. 10 is a second view illustrating a sliding movement of the air guiding plate of the heat dissipating device relative to the case according to one or more embodiments of the present invention;

FIG. 11 is a third view of a heat dissipation device of one or more embodiments of the present disclosure with a wind deflector sliding relative to a housing;

FIG. 12 is a first view illustrating a first state where an air guiding plate of a heat dissipating device is rotated relative to a housing according to one or more embodiments of the present invention;

FIG. 13 is a second view of a second embodiment of a heat dissipation device in accordance with the present invention, wherein the air deflector is configured to rotate relative to the housing;

fig. 14 is a third view illustrating a state that the air guiding plate of the heat dissipating device according to one or more embodiments of the present invention is disposed to rotate relative to the box.

Wherein the reference numerals have the following meanings:

1. a box body; 101. a base plate; 102. a housing; 1021. a wiring through hole; 103. a partition plate; 1031. a through groove; 104. a front plate; 105. a back plate; 2. a heat radiation fan; 3. a heat conductive member; 301. a heat dissipating fin; 4. an air inlet; 5. a ventilation flow channel; 6. an air outlet; 7. an electronic device; 8. a temperature sensor; 9. an air deflector.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 3, the invention discloses a heat dissipation device, which includes a box 1, a heat dissipation fan 2 and a heat conducting member 3, wherein the box 1 is provided with an air inlet 4, at least two ventilation flow channels 5 and an air outlet 6, each ventilation flow channel 5 is communicated with the air inlet 4 and the air outlet 6, and an electronic device 7 is installed on the inner wall of at least one ventilation flow channel 5.

The heat dissipation fan 2 is disposed at the air inlet 4 and/or the air outlet 6, and is configured to blow air into the ventilation flow channel 5 and/or suck air out of the ventilation flow channel 5.

The heat conducting member 3 is connected to the electronic device 7, and is configured to conduct heat generated by the electronic device 7 to one or more ventilation channels 5.

Through set up two at least ventilation runner 5 in box 1, and carry out heat-conduction through the heat conduction piece 3 to the heat that electronic equipment 7 produced, make the produced heat of electronic equipment 7 conduct to one or more than two ventilation runner 5 through heat conduction piece 3 in, then, through setting up in the radiator fan 2 of air intake 4 with the outside air of box 1 insufflates ventilation runner 5 through air intake 4, discharge from air outlet 6 again, or through the radiator fan 2 that sets up in air outlet 6 department, the air in ventilation runner 5 is sucked, make the air current that flows simultaneously in a plurality of ventilation runners 5 can take away from box 1's heat in the box 1, realize that a plurality of ventilation runners 5 carry out radiating effect simultaneously, and the radiating efficiency is improved, in order to satisfy the actual application needs of multi-device installation.

Referring to fig. 3, in one embodiment, the plurality of ventilation flow passages 5 may be vertically arranged up and down.

Of course, in other embodiments, the plurality of ventilation channels 5 may be arranged horizontally from left to right, or arranged in a mixture of the vertical and left-right directions, and the plurality of ventilation channels 5 may be sewn along a straight line forming an inclination angle with the horizontal.

Referring to fig. 3, in one embodiment, the heat dissipation fan 2 is disposed at the air inlet 4, and blows air into the box 1 to make air flow to dissipate heat.

In one embodiment, the heat dissipation fan 2 is disposed at the air outlet 6, and draws air from outside the box body 1, so that air flows to dissipate heat.

In one embodiment, the plurality of cooling fans 2 are respectively arranged at the air inlet 4 and the air outlet 6, and the combination of air blowing and air suction improves the flowing speed of the air flow and the cooling efficiency.

The housing 1 may be provided with a plurality of electronic devices 7, and the electronic devices 7 may be distributed in the same ventilation flow path 5.

Of course, a plurality of electronic devices 7 may be distributed in different ventilation flow passages 5, respectively.

Referring to fig. 2 and fig. 3, in an embodiment, a plurality of electronic devices 7 are installed in the same ventilation channel 5, a heat conduction member 3 is correspondingly disposed on each electronic device 7, and each heat conduction member 3 conducts heat generated by the corresponding electronic device 7 to different ventilation channels 5.

Due to the structural arrangement, a plurality of electronic devices 7 can be installed in the same ventilation flow channel 5, during installation and maintenance, only one ventilation flow channel 5 is needed to operate, the operation is not needed to be carried out in a plurality of ventilation flow channels 5, the electronic devices 7 are convenient to install and maintain, the heat conducting pieces 3 conduct heat generated by the corresponding electronic devices 7 to different ventilation flow channels 5 respectively, the heat generated by the electronic devices 7 can be dispersed to different ventilation flow channels 5, and therefore the rapid heat dissipation of the electronic devices 7 in the box body 1 is achieved.

Of course, each heat-conducting member 3 can also conduct heat generated by the corresponding electronic device 7 to the same ventilation flow path 5.

In some embodiments, a plurality of electronic devices 7 may share one heat-conducting member 3.

The number of the heat-conducting members 3 is selected according to the volume of the inside of the actual case 1, and is not limited herein.

Referring to fig. 3, in order to realize that the heat-conducting member 3 can conduct heat generated by the electronic device 7 from one ventilation flow passage 5 to another ventilation flow passage 5, the heat-conducting member 3 is disposed through an inner wall of the ventilation flow passage 5.

In some embodiments, the heat-conducting member 3 may penetrate through the inner walls of two or more ventilation flow passages 5.

Therefore, when the electronic device 7 attached to the heat conducting member 3 generates heat, the heat can be directly transferred to the heat conducting member 3 and then transferred to the two or more ventilation flow channels 5 through the heat conducting member 3, so that the purpose of radiating heat through multiple channels simultaneously is achieved.

Referring to fig. 2 and fig. 3, in an embodiment, the heat conducting member 3 is a fin-type heat conducting device, and includes a heat dissipating fin 301 and a fixing member (not shown), wherein the heat dissipating fin 301 is attached to a surface of the electronic device 7 and fixed to an inner wall of the ventilation flow channel 5 by the fixing member.

The inner wall of the ventilation flow path 5 is provided with a through groove 1031 through which the heat dissipation fin 301 passes, whereby heat generated by the electronic device 7 can be conducted from one ventilation flow path 5 to the other ventilation flow path 5 by the heat dissipation fin 301.

The fasteners may be screws, bolt and nut assemblies, and the like.

Of course, the heat conducting member 3 may also be a metal sheet, such as an iron sheet, an aluminum sheet, etc., and the heat conduction is realized by directly adhering the metal sheet to the surface of the electronic device 7.

Referring to fig. 1, a connection through hole 1021 is formed at a side portion of the case 1, through which a power supply line passes, and a connection wire of the electronic device 7 inside the case 1 can pass through the connection through hole 1021 and out of the case 1.

Referring to fig. 1 to 3, in one embodiment, the box body 1 includes a bottom plate 101, an outer casing 102, a partition plate 103, a front plate 104 and a rear plate 105, the outer casing 102 is U-shaped, the front plate 104 is located at the front end of the outer casing 102, the rear plate 105 is located at the rear end of the outer casing 102, the bottom plate 101, the outer casing 102, the front plate 104 and the rear plate 105 are spliced to form the box body 1, at least one partition plate 103 is disposed, and the partition plate 103 is fixed in the outer casing 102 to partition the interior of the box body 1 into at least two ventilation flow passages 5.

With this structure, the production and processing of the case 1 are facilitated, and in addition, the installation of the electronic device 7 in the ventilation flow passage 5 is facilitated.

Referring to fig. 3, the partition 103 partitions the inside of the box body 1 up and down, and a ventilation flow passage 5 is formed between the partition 103 and the inner wall of the housing 102; the partition plate 103 is used as the inner wall of the ventilation flow passage 5, and is used for installing and connecting the electronic equipment 7, the plurality of electronic equipment 7 are installed on the partition plate 103, and the through grooves 1031 are formed in the partition plate 103; with this arrangement, the electronic device 7 can be mounted or maintained on the partition 103 after the partition 103 is separated from the housing 102.

In one embodiment, the ratio of the amount of air circulating in each ventilation flow channel 5 is equal to the ratio of the amount of heat dissipated in each ventilation flow channel 5.

The air flow flowing in each ventilation flow passage 5 is adapted to the heat dissipated therein, so that the air flow in the ventilation flow passage 5 with large heat dissipation capacity is relatively large, and correspondingly, the air flow in the ventilation flow passage 5 with small heat dissipation capacity is relatively small, so that the heat dissipation air flow generated by the heat dissipation fan 2 can be fully utilized, and the maximization of the utility is realized.

In one embodiment, the heat dissipation fan 2 is movably connected to the box 1 to adjust the amount of air flowing into the different ventilation channels 5, and a locking member (not shown) for fixing the heat dissipation fan 2 to the box 1 is connected to the heat dissipation fan 2.

Therefore, according to the change of the heat dissipation capacity in the different ventilation flow channels 5, the position of the heat dissipation fan 2 can be adaptively adjusted, and the air flow quantity circulating in the different ventilation flow channels 5 is adjusted, so that the effect of balanced heat dissipation of the plurality of ventilation flow channels 5 is realized; after the cooling fan 2 is adjusted, the cooling fan 2 and the box body 1 are fixed through locking, so that the cooling fan can stably blow air into the box body 1 or exhaust air from the box body 1 to the outside.

The locking piece can be a screw or a bolt-nut assembly and can also be a clamping structure.

Referring to fig. 4 and 5, further, in an embodiment, the heat dissipation fan 2 is slidably connected to the box 1, and can slide relative to the box 1 to adjust a projection area of the heat dissipation fan 2 on a cross section of each ventilation flow channel 5.

That is, the heat dissipation fan 2 can slide relative to the housing 1 in a direction parallel to the cross section of the ventilation flow passage 5 (i.e., in a direction perpendicular to the air flow in the ventilation flow passage 5), so that the projected area of the heat dissipation fan 2 on the cross section of each ventilation flow passage 5 can be adjusted, and since the amount of blown air or sucked air by the heat dissipation fan 2 is proportional to the projected area of the heat dissipation fan 2 on the cross section of each ventilation flow passage 5, the amount of blown air or sucked air by the heat dissipation fan 2 into or out of each ventilation flow passage 5 can be adjusted by the above adjustment to match different amounts of heat dissipation in each ventilation flow passage 5.

Referring to fig. 6 to 8, in another embodiment, the heat dissipation fan 2 is rotatably connected to the box 1 to adjust an inclination angle between an air outlet direction of the heat dissipation fan 2 and a center line of the ventilation flow channel 5; in this embodiment, the amount of air flow in the ventilation flow channels 5 is related to the inclination angle of the cooling fan 2, and by adjusting the inclination angle of the cooling fan 2, the amount of air flow in each ventilation flow channel 5 can be adjusted to match different amounts of heat dissipation in each ventilation flow channel 5.

In order to realize automatic adjustment, a first driving member (not shown in the figure) is further connected to the cooling fan 2, the first driving member is electrically connected to a controller (not shown in the figure), and the first driving member can drive the cooling fan 2 to move under the control of the controller.

In one embodiment, the heat dissipation fan 2 is slidably connected to the box 1, the first driving member is an electrically controlled telescopic element, such as an electric push rod, and is connected to the heat dissipation fan 2 through a telescopic end of the electric push rod, when the controller outputs a control command to the electric push rod, the electric push rod can respond to the control command to drive the heat dissipation fan 2 to slide relative to the box 1, so as to adjust a projection area of the heat dissipation fan 2 on a cross section of each ventilation flow channel 5, and achieve an objective of adjusting an air flow rate in each ventilation flow channel 5, of course, during the adjustment process, the locking member needs to be in an unlocked state, or in this embodiment, the locking member can be eliminated, and a position of the heat dissipation fan 2 is locked by means of the electric push rod.

In another embodiment, the heat dissipation fan 2 is configured to be rotationally connected to the box 1, the first driving member is configured to be an electrically controlled rotational driving member, such as a servo motor or a steering engine, and the rotational driving member is drivingly connected to the rotational shaft of the heat dissipation fan 2, when the controller outputs a control command to the rotational driving member, the rotational driving member can drive the heat dissipation fan 2 to rotate relative to the box 1 in response to the control command, that is, adjust an included angle between the heat dissipation fan 2 and a central line of each ventilation flow channel 5, thereby adjusting an airflow rate in each ventilation flow channel 5, similar to the above-mentioned embodiment, during the process of adjusting the rotation of the heat dissipation fan 2, the locking member needs to be in an unlocked state, or in this embodiment, the locking member can be eliminated, and the position of the heat dissipation fan 2 is locked by means of the rotational driving member.

Referring to fig. 4 to 14, further, in order to realize automation of air flow regulation in the ventilation flow channels 5, in one embodiment, a temperature sensor 8 is disposed in each ventilation flow channel 5, the temperature sensor 8 is electrically connected to the controller, and the temperature sensor 8 is configured to detect a heat value dissipated in the corresponding ventilation flow channel 5.

The temperature sensor 8 arranged in each ventilation flow channel 5 detects the temperature in the corresponding ventilation flow channel 5, that is, the heat dissipation capacity in each ventilation flow channel 5 is detected in real time, and the temperature detection value is fed back to the controller, the controller drives and adjusts the first driving member according to the detected temperature value, so that the air flow in each ventilation flow channel 5 is matched with the heat dissipation capacity, specifically, when the temperature value in one ventilation flow channel 5 is detected to be significantly higher than the temperature values in other ventilation flow channels 5, the controller outputs a control signal to the first driving member, and adjusts the position or the inclination angle state of the cooling fan 2, so that the air flow in the ventilation flow channel 5 with high temperature is increased, and correspondingly, the air flow in other ventilation flow channels 5 is reduced, so that the heat dissipation capacity in each ventilation flow channel 5 can be matched with the air flow flowing through the ventilation flow channel 5, and a good heat dissipation effect can be achieved.

Referring to fig. 5 to 14, more specifically, each temperature sensor 8 is located in the corresponding ventilation flow passage 5 and is disposed near the air outlet 6.

Referring to fig. 9 to 14, in one embodiment, in order to distribute the air flow, an air deflector 9 is disposed inside the box 1 near the air inlet 4, the air deflector 9 is movably connected to the box 1, and the air deflector 9 can move relative to the box 1 to adjust the air flow entering the different ventilation channels 5.

Referring to fig. 9 to 11, further, in an embodiment, the air deflector 9 may be configured to slide relative to the box body 1, the air deflector 9 at least spans two adjacent ventilation flow channels 5 and can slide between the two ventilation flow channels 5, a size of a shielding area of the air deflector 9 for each ventilation flow channel 5 is inversely proportional to an air flow rate in each ventilation flow channel 5, that is, a shielding area of the air deflector 9 for the ventilation flow channel 5 is larger, an air flow rate in the ventilation flow channel 5 is correspondingly smaller, and a shielding area of the air deflector 9 for the ventilation flow channel 5 is smaller, an air flow rate in the ventilation flow channel 5 is correspondingly larger.

Naturally, in order to achieve an air flow rate regulation of more than two ventilation ducts 5, more than two air deflectors 9 can be provided accordingly.

Referring to fig. 12 to 14, in another embodiment, the air deflector 9 may be further configured to rotate relative to the box body 1, and the air deflector 9 may be disposed between two adjacent ventilation flow channels 5 and may swing into any one ventilation flow channel 5 of the two adjacent ventilation flow channels 5; in this embodiment, similarly to the above-described embodiment, the size of the shielding area of the air deflector 9 for each ventilation flow passage 5 is inversely proportional to the amount of air flow in each ventilation flow passage 5.

By adjusting the inclination angle state of the air deflector 9, the shielding area of two adjacent ventilation flow channels 5 is adjusted, that is, the air flow in the two corresponding ventilation flow channels 5 is adjusted.

Similarly, in order to adjust the air flow rate of the two or more ventilation channels 5, the air deflector 9 may be correspondingly provided in more than two.

Further, to realize automation of control of the air guiding plate 9, the air guiding plate 9 is connected to a second driving member (not shown in the figure), the second driving member is electrically connected to the controller, and the second driving member can drive the air guiding plate 9 to move under the control of the controller.

Accordingly, in one embodiment, the air guiding plate 9 is slidably connected to the box 1, and the second driving member is an electrically controlled telescopic member, and specifically, an electric push rod can be used.

In another embodiment, the air deflector 9 is rotatably connected to the box body 1, and the second driving member is an electrically controlled rotary driving member, and specifically, a servo motor or a steering engine can be used.

The controller outputs a control signal to the second driving part, and the second driving part can drive the air deflector 9 to move (i.e. slide or rotate) in response to the control signal of the controller, so that the shielding area of the air deflector 9 on each ventilation flow channel 5 is adjusted, and further the airflow in the corresponding ventilation flow channel 5 is adjusted, the heat dissipation capacity in each ventilation flow channel 5 can be matched with the airflow flowing through the ventilation flow channel, and a better heat dissipation effect can be achieved.

In the above embodiments, the controller may be a common single chip, a PLC (programmable logic controller) or other computer unit capable of at least receiving and processing data and inputting and outputting instructions.

In fig. 3 to 14, arrows are used to show the flow state of the airflow.

In conclusion, the invention can realize the effect of radiating a plurality of ventilation runners 5 simultaneously, improve the radiating efficiency and meet the actual application requirement of multi-equipment installation; and the air flow in the ventilation flow channel 5 can be adjusted according to the difference of the heat dissipation capacity in each ventilation flow channel 5, so that the heat dissipation efficiency of the heat dissipation device is further improved.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims (10)

1. A heat dissipating device, comprising:

the box body (1) is provided with an air inlet (4), at least two ventilation flow channels (5) and an air outlet (6), each ventilation flow channel (5) is communicated with the air inlet (4) and the air outlet (6), and electronic equipment (7) is installed on the inner wall of at least one ventilation flow channel (5);

the heat radiation fan (2) is arranged at the air inlet (4) and/or the air outlet (6) and is used for blowing air into the ventilation flow channel (5) and/or sucking air out of the ventilation flow channel (5); and

and the heat conducting piece (3) is connected with the electronic equipment (7) and is used for conducting heat emitted by the electronic equipment (7) to one or more than two ventilation flow channels (5).

2. The heat sink according to claim 1, wherein the heat conducting member (3) is a finned heat sink.

3. The heat dissipation device according to claim 1, wherein the box body (1) comprises a bottom plate (101), a casing (102), a partition plate (103), a front plate (104) and a rear plate (105), the casing (102) is U-shaped, the front plate (104) is located at the front end of the casing (102), the rear plate (105) is located at the rear end of the casing (102), the bottom plate (101), the casing (102), the front plate (104) and the rear plate (105) are spliced to form the box body (1), the partition plate (103) is provided with at least one, and the partition plate (103) is fixed in the casing (102) to divide the interior of the box body (1) into at least two ventilation flow passages (5).

4. The heat dissipating device according to claim 1, characterized in that the ratio of the amount of air circulating in each of the ventilation flow channels (5) is equal to the ratio of the amount of heat dissipated in each of the ventilation flow channels (5).

5. The heat sink according to any one of claims 1 to 4, wherein the heat dissipation fan (2) is movably connected to the housing (1) to adjust the amount of air flow into the different ventilation channels (5), and a locking member for fixing the heat dissipation fan (2) to the housing (1) is connected to the heat dissipation fan (2).

6. The heat dissipation device according to claim 5, wherein the heat dissipation fan (2) is slidably connected to the housing (1) and can slide relative to the housing (1) to adjust a projection area of the heat dissipation fan (2) on a cross section of each of the ventilation flow channels (5), or the heat dissipation fan (2) is rotatably connected to the housing (1) to adjust an inclination angle between an air outlet direction of the heat dissipation fan (2) and the ventilation flow channels (5).

7. The heat dissipation device of claim 6, wherein the heat dissipation fan (2) is connected with a first driving member, the first driving member is electrically connected with a controller, and the first driving member can drive the heat dissipation fan (2) to move under the control of the controller.

8. The heat dissipation device according to claim 7, wherein a temperature sensor (8) is disposed in each ventilation flow channel (5), the temperature sensor (8) is electrically connected to the controller, and the temperature sensor (8) is configured to detect a heat value dissipated in the corresponding ventilation flow channel (5).

9. The heat dissipation device according to claim 8, wherein an air deflector (9) is disposed inside the box (1) near the air inlet (4), the air deflector (9) is movably connected to the box (1), and the air deflector (9) is movable relative to the box (1) to adjust the amount of air flowing into the different ventilation channels (5).

10. The heat dissipation device of claim 9, wherein the air guide plate (9) is connected to a second driving member, the second driving member is electrically connected to the controller, and the second driving member can drive the air guide plate (9) to move under the control of the controller.

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