CN110994902B

CN110994902B - Cooling device

Info

Publication number: CN110994902B
Application number: CN201911214743.8A
Authority: CN
Inventors: 覃甲林; 赵永进; 熊友军
Original assignee: Ubtech Robotics Corp
Current assignee: Ubtech Robotics Corp
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2021-06-29
Anticipated expiration: 2039-12-02
Also published as: CN110994902A

Abstract

The application discloses a cooling device, which comprises a heat dissipation metal plate with a heat dissipation cavity, an air inlet fan connected with the heat dissipation metal plate, and an air outlet fan connected with the heat dissipation metal plate; the heat dissipation metal plate is provided with an air inlet and an air outlet which are communicated with the heat dissipation cavity; the air inlet fan is connected with the heat dissipation metal plate in a sealing mode at the air inlet, and the air outlet fan is connected with the heat dissipation metal plate in a sealing mode at the air outlet. A heat dissipation channel formed by the air inlet, the heat dissipation cavity and the air outlet is an independent system; when the cooling device is installed on mechanical equipment such as an outdoor inspection vehicle, the heat dissipation metal plate is in contact with a heating source of the outdoor inspection vehicle, but the heat dissipation air channel of the cooling device is isolated from the inside of the outdoor inspection vehicle, so that the dust screen and the waterproof asbestos are not required to be used in a combined manner and cover the air inlet fan and the air outlet fan, the limitation on the flowing of the air speed is avoided, and the heat dissipation and cooling effects of the mechanical equipment with higher waterproof and dustproof requirements are further ensured.

Description

Cooling device

Technical Field

The application relates to the field of cooling and heat dissipation, in particular to a cooling device.

Background

For mechanical equipment such as outdoor inspection vehicles and the like with high requirements on water and dust prevention, water and dust in the environment are prevented from entering the equipment as much as possible, however, in order to continuously and stably operate the equipment, a cooling fan needs to be provided for the equipment, and in order to prevent the cooling fan from bringing the water and dust in the environment into the equipment, a dust screen and waterproof asbestos are generally used in combination and cover an air inlet of the cooling fan to achieve dust and water prevention. However, the structure severely limits the wind speed to flow, so that the heat exchange speed of the system is reduced, and the heat dissipation and cooling requirements of the outdoor inspection vehicle cannot be met.

Disclosure of Invention

An object of the application is to provide a cooling device, aim at solving prior art, waterproof dustproof higher mechanical equipment heat dissipation cooling effect poor problem of requirement.

To achieve the purpose, the following technical scheme is adopted in the application:

the cooling device comprises a heat dissipation metal plate with a heat dissipation cavity, an air inlet fan connected with the heat dissipation metal plate, and an air outlet fan connected with the heat dissipation metal plate; the heat dissipation metal plate is provided with an air inlet and an air outlet which are communicated with the heat dissipation cavity; the air inlet fan is connected with the heat dissipation metal plate in a sealing mode at the air inlet, and the air outlet fan is connected with the heat dissipation metal plate in a sealing mode at the air outlet.

Furthermore, at least one first air deflector is arranged in the heat dissipation cavity; the first air guide plate is provided with a first air guide groove.

Furthermore, a second air guide groove is formed in the first air guide plate; the width of the second air guide groove is larger than that of the first air guide groove.

Furthermore, a third air guide groove is formed in the first air guide plate; the width of the third air guide groove is greater than that of the first air guide groove; the second air guide groove and the third air guide groove are respectively positioned at two opposite sides of the first air guide groove.

Furthermore, the heat dissipation metal plate comprises a first heat dissipation part connected with the air inlet fan, a second heat dissipation part connected with the air outlet fan, and a heat dissipation connecting part connected between the first heat dissipation part and the second heat dissipation part.

Further, the first heat dissipation part is opposite to the second heat dissipation part and is arranged at an interval; the first radiating part is far away from one end of the air inlet fan and connected with the radiating connecting part, and the second radiating part is far away from one end of the air outlet fan and connected with the radiating connecting part.

Furthermore, the number of the first air deflectors is two, one of the first air deflectors is located at the first heat dissipation part, and the other one of the first air deflectors is located at the second heat dissipation part.

Further, the first air guide groove is an arc groove; the two first air deflectors are arranged oppositely, and the central angle of the arc groove is 90 degrees.

Furthermore, a third air guide groove is formed in the first air guide plate; the width of the third air guide groove is greater than that of the first air guide groove; and a notch is formed in the inner side wall of the third air guide groove.

Further, the heat dissipation metal plate is a copper plate; and a silica gel heat conduction paste is arranged outside the heat dissipation metal plate.

Furthermore, a second air deflector and a third air deflector are arranged in the heat dissipation cavity; the second air deflector is provided with a fourth air guiding groove, and the third air deflector is provided with a fifth air guiding groove; the second air deflector is positioned between the air inlet fan and the first air deflector; the third air deflector is positioned between the air outlet fan and the first air deflector.

Furthermore, the air conditioner also comprises a first bent copper pipe connected between the air inlet fan and the heat dissipation metal plate, and a second bent copper pipe connected between the air outlet fan and the heat dissipation metal plate.

Further, a mounting plate is arranged in the heat dissipation cavity, the first air deflector is fixedly mounted on the mounting plate, and the second air deflector are mounted on the mounting plate.

The beneficial effect of this application: a heat dissipation channel formed by the air inlet, the heat dissipation cavity and the air outlet is an independent system; when the cooling device is installed on mechanical equipment such as an outdoor inspection vehicle, the heat dissipation metal plate is in contact with a heating source of the outdoor inspection vehicle, but the heat dissipation air channel of the cooling device is isolated from the inside of the outdoor inspection vehicle, so that the dust screen and the waterproof asbestos are not required to be used in a combined manner and cover the air inlet fan and the air outlet fan, the limitation on the flowing of the air speed is avoided, and the heat dissipation and cooling effects of the mechanical equipment with higher waterproof and dustproof requirements are further ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a cooling device according to an embodiment of the present application;

FIG. 2 is an exploded view of the cooling device of FIG. 1;

fig. 3 is a schematic structural view of the first air guiding plate in fig. 2;

FIG. 4 is a schematic structural diagram of the heat dissipation metal plate shown in FIG. 2;

FIG. 5 is a cross-sectional view of the cooling device of FIG. 1 mounted to a sealed body of an outdoor inspection vehicle;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

in the figure:

1. sealing the vehicle body; 11. an accommodating cavity;

2. a motor module;

3. a cooling device; 31. an air intake fan; 32. an air outlet fan; 33. a heat-dissipating metal plate; 331. a first heat sink portion; 3311. an air inlet; 332. a second heat sink member; 3321. an air outlet; 333. a heat dissipation connecting part; 334. a heat dissipation cavity; 335. mounting a plate; 34. a first air deflector; 341. a first air guide groove; 342. a second air guide groove; 343. a third air guiding groove; 3431. a notch; 35. a second air deflector; 351. a fourth air guide groove; 36. a third air deflector; 361. a fifth air guide groove; 37. a first bent copper tube; 38. a second bent copper tube; 39. and (4) a silica gel heat conducting paste.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The following detailed description of implementations of the present application is provided in conjunction with specific embodiments.

As shown in fig. 1-2, the embodiment of the present application provides a cooling device 3, which includes a heat dissipation metal plate 33 having a heat dissipation cavity 334, an air inlet fan 31 connected to the heat dissipation metal plate 33, and an air outlet fan 32 connected to the heat dissipation metal plate 33; the heat dissipation metal plate 33 is provided with an air inlet 3311 and an air outlet 3321 which are communicated with the heat dissipation cavity 334; the air inlet fan 31 is hermetically connected to the heat dissipation metal plate 33 at the air inlet 3311, and the air outlet fan 32 is hermetically connected to the heat dissipation metal plate 33 at the air outlet 3321.

In the embodiment of the present application, please refer to fig. 3-6 synchronously, the heat dissipation metal plate 33 of the cooling device 3 may be installed in the accommodating cavity 11 of the sealed vehicle body 1 of the outdoor inspection vehicle, and the air inlet fan 31 and the air outlet fan 32 are communicated with the outside of the accommodating cavity 11; the heat dissipation metal plate 33 is in heat conduction contact with a heat source, and the heat source can be specifically a component with the largest heat productivity such as a motor module 2 in an outdoor inspection vehicle; the heat dissipation and cooling process of the cooling device 3 is as follows: the air intake fan 31 introduces external normal temperature air into the heat dissipation cavity 334 of the heat dissipation metal plate 33 through the air intake 3311, and moves a distance in the heat dissipation cavity 334 and then leaves the heat dissipation metal plate 33 from the air outlet 3321; because the heat dissipation metal plate 33 is in heat conduction contact with the motor module 2, when the air moves in the heat dissipation cavity 334 of the heat dissipation metal plate 33, the heat transferred to the heat dissipation metal plate 33 by the motor module 2 can be taken away, and further the heat dissipation of the motor module 2 is realized; because the heat dissipation metal plate 33 is located in the accommodating cavity 11 of the sealed vehicle body 1, heat generated by other heat generating components in the accommodating cavity 11 can be transferred to the heat dissipation metal plate 33 through the air inside the accommodating cavity 11, thereby realizing heat dissipation of other components in the accommodating cavity 11.

Because the air inlet fan 31 is hermetically connected with the heat dissipation metal plate 33 at the air inlet 3311 and the air outlet fan 32 is hermetically connected with the heat dissipation metal plate 33 at the air outlet 3321, the heat dissipation channel formed by the air inlet 3311, the heat dissipation cavity 334 and the air outlet 3321 is an independent system; when the cooling device 3 is installed on mechanical equipment such as an outdoor inspection vehicle (hereinafter, the outdoor inspection vehicle is taken as an example for explanation), the heat dissipation metal plate 33 is in contact with a heat source of the outdoor inspection vehicle, but the heat dissipation air duct of the cooling device 3 is isolated from the inside of the outdoor inspection vehicle, so that dust and water mist cannot be brought into the outdoor inspection vehicle when the cooling device 3 is used, a dust screen and waterproof asbestos do not need to be used in combination and cover the air inlet fan 31 and the air outlet fan 32, the limitation of air speed flowing is avoided, the heat exchange speed is ensured, and the heat dissipation and cooling effects of the mechanical equipment with higher waterproof and dustproof requirements are further ensured.

Further, referring to fig. 3, as another embodiment of the cooling device 3 provided in the present application, at least one first air guiding plate 34 is disposed in the heat dissipation cavity 334; the first air guiding plate 34 is provided with a first air guiding groove 341. The first air guiding groove 341 on the first air guiding plate 34 enables the air in the heat dissipation cavity 334 to move along a preset direction and area, that is, the air is concentrated at the first air guiding groove 341 and moves along the length direction of the first air guiding groove 341, so that the first air guiding groove 341 can be corresponding to the maximum heat source motor module 2 of the outdoor inspection vehicle during use, and therefore the air in the heat dissipation cavity 334 is concentrated at the motor module 2 and the heat generated by the motor module 2 is dispersed by the metal plate 33.

The heat is dissipated in a mode that the heat dissipation air is concentrated in the main heating source, so that the heat dissipation effect is improved; meanwhile, as the heat of the main heating source (the motor module 2 is taken as an example below) is taken away in time, the rapid temperature rise of other parts of the mechanical equipment due to the influence of the heat generated by the main heating source is avoided. For example, when mechanical equipment such as an outdoor inspection vehicle is provided with the sealed vehicle body 1 in order to ensure sufficient waterproof and dustproof performance, the heat of the motor module 2 is taken away in time, and the rise of the temperature inside the sealed vehicle body 1 can be effectively avoided.

Further, referring to fig. 3, as another embodiment of the cooling device 3 provided in the present application, the first air guiding plate 34 is further provided with a second air guiding groove 342; the width of the second air guiding groove 342 is greater than that of the first air guiding groove 341. The width of the first air guiding groove 341 is the smallest, so that the speed of air flowing through the first air guiding groove 341 is the fastest, the speed of air flow exchange at the area is accelerated, and the heat dissipation efficiency of the motor module 2 is ensured. The main heating source in the outdoor inspection vehicle is the motor module 2, and can also be other parts which generate heat more seriously, the airflow velocity at the second air guide groove 342 is slightly smaller than that at the first air guide groove 341, so the airflow exchange speed is slightly smaller, but the heat dissipation and cooling effects can also be ensured for the parts which generate heat less than the motor module 2. The arrangement of the first air guide groove 341 and the second air guide groove 342 reasonably distributes the heat dissipation airflow according to the requirement, so that the heat generated by the cooled parts at all places can be discharged in time, and the temperature at all places can be well controlled. The need for total airflow is reduced relative to providing the same heat dissipating airflow throughout. Since the width of the first air guiding groove 341 is the smallest, the number of the first air guiding grooves 341 per unit area is the largest, that is, the number of the inner side walls of the first air guiding groove 341 is plural, thereby increasing the heat dissipation area.

Further, referring to fig. 3, as another embodiment of the cooling device 3 provided in the present application, a third air guiding groove 343 is further formed on the first air guiding plate 34; the width of the third wind guide groove 343 is greater than that of the first wind guide groove 341; the second wind-guiding groove 342 and the third wind-guiding groove 343 are respectively located at two opposite sides of the first wind-guiding groove 341. The width of the first air guiding groove 341 is the smallest, so that the speed of air flowing through the first air guiding groove 341 is the fastest, the speed of air flow exchange at the area is accelerated, and the heat dissipation efficiency of the motor module 2 is ensured. The main heating source in the outdoor inspection vehicle is the motor module 2, and can also be other parts which generate heat more seriously, the other parts which generate heat more seriously correspond to the second air guide groove 342 or the third air guide groove 343, and the airflow velocity at the positions of the second air guide groove 342 and the third air guide groove 343 is slightly smaller than that at the position of the first air guide groove 341, so that the airflow exchange speed is slightly smaller, but the heat dissipation and cooling effect can also be ensured for the parts which generate heat less than the motor module 2. The arrangement of the first air guide groove 341, the second air guide groove 342 and the third air guide groove 343 reasonably distributes the heat dissipation airflow according to the requirement, so that the heat generated by the cooled parts at all places can be timely discharged, and the temperature at all places can be well controlled. The need for total airflow is reduced relative to providing the same heat dissipating airflow throughout. Since the width of the first air guiding groove 341 is the smallest, the number of the first air guiding grooves 341 per unit area is the largest, that is, the number of the inner side walls of the first air guiding groove 341 is plural, thereby increasing the heat dissipation area. The motor module 2 is used as a maximum heating source to transfer heat to peripheral components thereof in a heat radiation mode, so that the second air guide groove 342 and the third air guide groove 343 are respectively positioned at two opposite sides of the first air guide groove 341, heat generated by heat radiation of the motor module 2 can be taken away in time, and the temperature rise of the peripheral components of the motor module 2 is avoided being too fast.

Further, please refer to another embodiment of the cooling device 3 provided in the present application, an inner sidewall of the third air guiding groove 343 is provided with a notch 3431. When the number of the motor modules 2 of the outdoor inspection vehicle is multiple, for example, two, the number of the first air deflectors 34 is two, one first air deflector 34 corresponds to one motor module 2, and the two first air deflectors 34 are both located in the heat dissipation metal plate 33, so that when the first air deflector 34 dissipates heat of the first motor module 2, in order to ensure that the second motor module 2 can also dissipate heat by lower-temperature air, the notch 3431 at the third air guide groove 343 at the first air deflector 34 can allow the lower-temperature air to leave the first air deflector 34 and reach the next first air deflector 34, enter the next first air guide groove 341, the second air guide groove 342, and the third air guide groove 343, and dissipate heat of the next motor module 2.

Further, referring to fig. 1 and 4, as another embodiment of the cooling device 3 provided by the present application, the heat dissipation metal plate 33 includes a first heat dissipation portion 331 connected to the air intake fan 31, a second heat dissipation portion 332 connected to the air outlet fan 32, and a heat dissipation connecting portion 333 connected between the first heat dissipation portion 331 and the second heat dissipation portion 332. Air enters the first heat dissipation part 331 through the air inlet 3311, flows through a certain heat dissipation stroke, enters the second heat dissipation part 332 through the heat dissipation connecting part 333, and then flows through a certain heat dissipation stroke in the second heat dissipation part 332 for heat dissipation; the coverage of a large area is realized in the minimum area, and the heat dissipation efficiency is improved.

Further, referring to fig. 1 and fig. 4, as another embodiment of the cooling device 3 provided in the present application, the first heat sink portion 331 and the second heat sink portion 332 are disposed opposite to each other and spaced apart from each other; one end of the first heat dissipation part 331, which is far away from the air inlet fan 31, is connected to the heat dissipation connecting part 333, and one end of the second heat dissipation part 332, which is far away from the air outlet fan 32, is connected to the heat dissipation connecting part 333. The first heat sink member 331 and the second heat sink member 332 are disposed to face each other at an interval, and may be disposed on the same horizontal plane or may be stacked at an interval in the same vertical direction.

Further, referring to fig. 1 and fig. 2, as another embodiment of the cooling device 3 provided in the present application, the number of the first wind deflectors 34 is two, wherein one of the first wind deflectors 34 is located at the first heat sink portion 331, and the other first wind deflector 34 is located at the second heat sink portion 332. When the number of the maximum heating sources such as the motor modules 2 is two, the two motor modules 2 correspond to the two first air deflectors 34 respectively, so that the air in the heat dissipation metal plate 33 is concentrated at the two first air deflectors 34 to dissipate the heat of the motor modules 2.

Further, referring to fig. 2, as another embodiment of the cooling device 3 provided in the present application, the first wind guiding groove 341 is an arc groove; the two first air deflectors 34 are arranged oppositely, and the central angle of the arc groove is 90 degrees. Because the first heat dissipation parts 331 and the second heat dissipation parts 332 are arranged opposite to each other at intervals, the first air guide grooves 341 on the two first air guide plates 34 can be positioned on the same circumference after being spliced, and the central angle of the circular arc groove (the first air guide groove 341) is 90 degrees, and the way of arranging the two first air guide plates 34 opposite to each other can ensure that the air flow with a high flow velocity at one first air guide groove 341 can smoothly reach the other first air guide groove 341, thereby avoiding the influence on the smoothness of the air flow in the heat dissipation cavity 334 due to the multiple changes of the air flow velocity.

Further, referring to fig. 3, as another embodiment of the cooling device 3 provided in the present application, a third air guiding groove 343 is further formed on the first air guiding plate 34; the width of the third wind guide groove 343 is greater than that of the first wind guide groove 341; the inner sidewall of the third wind guiding groove 343 has a notch 3431. When the number of the motor modules 2 of the outdoor inspection vehicle is multiple, for example, two, the number of the first air deflectors 34 is two, one first air deflector 34 corresponds to one motor module 2, and the two first air deflectors 34 are both located in the heat dissipation metal plate 33, so that when the first air deflector 34 dissipates heat of the first motor module 2, in order to ensure that the second motor module 2 can also dissipate heat by lower-temperature air, the notch 3431 at the third air guide groove 343 at the first air deflector 34 can allow the lower-temperature air to leave the first air deflector 34 and reach the next first air deflector 34, enter the next first air guide groove 341, the second air guide groove 342, and the third air guide groove 343, and dissipate heat of the next motor module 2.

Further, referring to fig. 5-6, as another embodiment of the cooling device 3 provided in the present application, the heat dissipation metal plate 33 is a copper plate; the heat-dissipating metal plate 33 is externally provided with a silica gel heat-conducting patch 39. The copper has better heat transfer effect, and silica gel heat conduction pastes 39 and has certain deformability and can realize the inseparable contact between the biggest sources that generate heat such as heat dissipation metal sheet 33 and motor module 2, avoids unable better contact when motor module 2 or heat dissipation metal sheet 33 are equipped with the error.

Further, referring to fig. 2, as another embodiment of the cooling device 3 provided in the present application, a second air guiding plate 35 and a third air guiding plate 36 are further disposed in the heat dissipation cavity 334; the second air guiding plate 35 is provided with a fourth air guiding groove 351, and the third air guiding plate 36 is provided with a fifth air guiding groove 361; the second air deflector 35 is positioned between the air intake fan 31 and the first air deflector 34; the third air guiding plate 36 is located between the air outlet fan 32 and the first air guiding plate 34.

The second air guiding plate 35 is located between the air intake fan 31 and the first air guiding plate 34 to introduce the air at the air inlet 3311 into the first air guiding plate 34, so as to realize the concentration of the air at the first air guiding plate 34; the third air guiding plate 36 is located between the air outlet fan 32 and the first air guiding plate 34 to guide the air in the heat dissipation cavity 334 to the air outlet 3321 and leave the heat dissipation metal plate 33, so that the hot air can quickly leave the heat dissipation metal plate 33, and the heat dissipation efficiency is prevented from being affected by the hot air flowing in the heat dissipation metal plate 33.

Further, referring to fig. 1, as another specific embodiment of the cooling device 3 provided in the present application, the cooling device further includes a first bent copper tube 37 connected between the air intake fan 31 and the heat dissipation metal plate 33, and a second bent copper tube 38 connected between the air exhaust fan 32 and the heat dissipation metal plate 33. The first bent copper tube 37 and the second bent copper tube 38 can prevent foreign matters from entering the heat dissipation metal plate 33, and can also prevent dust and water mist from directly entering the heat dissipation metal plate 33, thereby having better waterproof and dustproof effects.

Further, referring to fig. 2, as another embodiment of the cooling device 3 provided in the present application, a mounting plate is further disposed in the heat dissipation cavity 334, the first wind guiding plate 34 is fixedly mounted on the mounting plate, and both the third wind guiding plate 36 and the second wind guiding plate 35 are mounted on the mounting plate. Therefore, when the first air deflector 34, the second air deflector 35 and the third air deflector 36 need to be replaced or cleaned, the mounting plate can be detached, and the first air deflector 34, the second air deflector 35 and the third air deflector 36 can be rapidly detached to perform dust removal or replacement.

It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.

It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. The cooling device is characterized by comprising a heat dissipation metal plate with a heat dissipation cavity, an air inlet fan connected with the heat dissipation metal plate, and an air outlet fan connected with the heat dissipation metal plate; the heat dissipation metal plate is provided with an air inlet and an air outlet which are communicated with the heat dissipation cavity; the air inlet fan is hermetically connected with the heat dissipation metal plate at the air inlet, the air outlet fan is hermetically connected with the heat dissipation metal plate at the air outlet, and at least two first air deflectors are arranged in the heat dissipation cavity; the first air guide plate is provided with a first air guide groove, two ends of the first air guide groove are both positioned at the edge of the first air guide plate, the first air guide plate is also provided with a third air guide groove which is mutually independent from the first air guide groove, the first air guide groove and the third air guide groove are adjacently arranged, and two ends of the third air guide groove are both positioned at the edge of the first air guide plate; the width of the third air guide groove is greater than that of the first air guide groove; a notch is formed in the inner side wall of the third air guide groove; each first air deflector can be used for respectively dissipating heat of each main heating source.

2. The cooling device according to claim 1, wherein the first air guiding plate is further provided with a second air guiding groove which is independent from the first air guiding groove, the second air guiding groove and the third air guiding groove are independent from each other, and two ends of the second air guiding groove are located at the edge of the first air guiding plate; the width of the second air guide groove is larger than that of the first air guide groove.

3. The cooling apparatus as claimed in claim 2, wherein the second air guiding groove and the third air guiding groove are respectively located at two opposite sides of the first air guiding groove.

4. The cooling device according to claim 1, wherein the heat dissipation metal plate includes a first heat dissipation portion connected to the air intake fan, a second heat dissipation portion connected to the air outlet fan, and a heat dissipation connecting portion connected between the first heat dissipation portion and the second heat dissipation portion.

5. The cooling device according to claim 4, wherein the first heat sink member is disposed opposite to and spaced apart from the second heat sink member; the first radiating part is far away from one end of the air inlet fan and connected with the radiating connecting part, and the second radiating part is far away from one end of the air outlet fan and connected with the radiating connecting part.

6. The cooling device as claimed in claim 5, wherein the number of the first wind deflectors is two, one of the first wind deflectors is located at the first heat sink portion, and the other of the first wind deflectors is located at the second heat sink portion.

7. The cooling device as claimed in claim 6, wherein the first air guiding groove is a circular arc groove; the two first air deflectors are arranged oppositely, and the central angle of the arc groove is 90 degrees.

8. The cooling device according to claim 1, wherein a second air deflector and a third air deflector are further disposed in the heat dissipation chamber; the second air deflector is provided with a fourth air guiding groove, and the third air deflector is provided with a fifth air guiding groove; the second air deflector is positioned between the air inlet fan and the first air deflector; the third air deflector is positioned between the air outlet fan and the first air deflector.