Heat dissipation device

Abstract

The utility model discloses a heat dissipation device. The heat dissipation device comprises a fan; the radiator, an air inlet of the fan, an air outlet of the fan and the radiator are communicated to form a cooling channel; the brush assembly is arranged in the cooling channel and used for cleaning the fan and / or the radiator; the driving assembly is connected with the brush assembly and used for driving the brush assembly to make contact with the fan and / or the radiator or release contact with the fan and / or the radiator. According to the heat dissipation device, the radiator and the fan can be timely and effectively cleaned, dust and impurities are prevented from affecting the use performance and the service life of parts, normal use of the parts cannot be interfered after cleaning operation is completed, and the overall reliable use performance of the heat dissipation device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation equipment, and more specifically, to a heat dissipation device. Background Art

[0002] In the field of photovoltaic power generation technology, photovoltaic products need to work at rated temperatures. If the heat dissipation is not timely or the temperature is too high, it will affect the performance and service life of the product, such as the main heat-generating components of photovoltaic inverters, such as switching tubes and magnetic core components.

[0003] In the related art, the heat dissipation device used for heat dissipation mainly includes a radiator, a fan, an air guide plate, etc. The fan drives the surrounding air to flow and enter the heat dissipation fins of the radiator through the air guide plate to take away the heat generated by the operation of the photovoltaic product. In the actual application process, due to the combined effects of humidity and negative pressure environment, debris and dust in the environment such as catkins, fallen leaves, insect eggs, dust, etc. settle between the fan and the radiator. The heat dissipation device is an integral part, and it cannot be effectively cleaned in time when debris and dust appear, which affects the start-up of the fan and the heat dissipation capacity of the heat dissipation module.

[0004] In summary, how to clean up the debris and dust generated in the heat dissipation device in a timely manner is a problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a heat dissipation device, which can clean the radiator and fan in a timely and effective manner to prevent dust and impurities from affecting the performance and service life of the components. After the cleaning operation is completed, it will not interfere with the normal use of the components, thereby ensuring the overall reliable performance of the heat dissipation device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A heat dissipation device, comprising:

[0008] fan;

[0009] A radiator, wherein the air inlet of the fan, the air outlet of the fan, and the radiator are connected to form a cooling channel;

[0010] A brush assembly, disposed in the cooling channel, for cleaning the fan and / or the radiator;

[0011] A driving assembly is connected to the brush assembly and is used to drive the brush assembly to make contact with or release contact with the fan and / or the radiator.

[0012] Preferably, the brush assembly is arranged between the air outlet of the fan and the air inlet of the radiator, and the length of the brush assembly in a working state is greater than or equal to the distance between the air outlet of the fan and the air inlet of the radiator.

[0013] Preferably, the brush assembly comprises a plurality of layers of detachably connected brushes, the brushes are provided with at least one group of brush teeth, and the driving assembly is used to drive the brush teeth to rotate so as to contact or release contact with the fan and / or the radiator.

[0014] Preferably, between two adjacent layers of the brushes, one is provided with a stud, and the other is provided with a nut block connected to the stud.

[0015] Preferably, the brush teeth are flexible brush teeth, and a plurality of groups of grooves are provided in the length direction of the flexible brush teeth.

[0016] Preferably, the driving assembly comprises:

[0017] A limiting slide rail is arranged on a fan bracket of the fan;

[0018] A belt, arranged in the limiting slide rail;

[0019] A fixed rail is fixed in the limit slide rail, and the brush assembly is respectively engaged with the fixed rail and the belt through a transmission rotating head;

[0020] The motor drives the belt to rotate so as to realize the rotation and movement of the brush assembly.

[0021] Preferably, the output end of the motor is connected to a driving gear, and the inner side of the belt is also meshed with a driven gear, and the driving gear rotates to drive the driven gear to rotate.

[0022] Preferably, the length of the fixed rail is greater than the moving distance of the brush assembly.

[0023] Preferably, the fan is arranged on a fan bracket, and an opening is provided on the top of the fan bracket, and the opening is used to be connected to a mounting wall to block the top of the cooling channel.

[0024] Preferably, it also includes a fan guard plate connected to the fan bracket, and the fan guard plate connects the fan and the fan bracket.

[0025] The heat dissipation device provided by the utility model comprises a fan, a radiator, and a brush assembly. The air inlet, air outlet and radiator of the fan are connected to form a cooling channel. The brush assembly is arranged in the cooling channel, and can clean the fan, or clean the radiator, or clean the fan and the radiator at the same time. The driving assembly drives the brush assembly. When debris and dust appear on the fan and the radiator, the driving assembly drives the brush assembly to contact with the fan and / or the radiator to clean the debris and dust, thereby ensuring the heat dissipation effect of the heat dissipation device and ensuring the reliable start of the fan. After the cleaning is completed, the brush assembly is driven by the driving assembly to release the contact with the fan and / or the radiator. At this time, the brush assembly will not affect the normal operation of the heat dissipation device and will not interfere with the components. The above heat dissipation device can clean the radiator and the fan in a timely and effective manner, avoid dust and impurities affecting the performance and service life of the components, and will not interfere with the normal use of the components after the cleaning operation is completed, thereby ensuring the overall reliable performance of the heat dissipation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the structure of the heat dissipation device provided by the utility model;

[0028] Figure 2 for Figure 1 A schematic diagram of an exploded view of;

[0029] Figure 3 for Figure 1 Another schematic diagram of the exploded view;

[0030] Figure 4 A schematic diagram of the structure of the brush assembly provided by the utility model;

[0031] Figure 5 for Figure 4 A partial enlarged view of the middle A area;

[0032] Figure 6 This is a schematic diagram of the disassembly of the brush assembly provided by the utility model;

[0033] Figure 7 for Figure 6 A partial enlarged view of the middle B area;

[0034] Figure 8 A partial cross-sectional view of the heat dissipation device provided by the utility model;

[0035] Fig. 9 for Figure 8 A partial enlarged view of area C in the middle.

[0036] Figure 1-Figure 9 , the reference numerals include:

[0037] 01-first limit position; 02-second limit position;

[0038] 1- fan guard plate; 2- fan; 3- fan bracket; 4- radiator; 5- brush assembly; 6- motor; 7- driving gear; 8- belt; 9- fixed rail; 10- limited slide rail; 11- nut block; 12- stud; 13- transmission rotating head; 14- driven gear;

[0039] 51-brush; 511-brush teeth; 512-groove. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] The core of the utility model is to provide a heat dissipation device, which can clean the radiator and fan in a timely and effective manner to prevent dust and impurities from affecting the performance and service life of the components. After the cleaning operation is completed, it will not interfere with the normal use of the components, thereby ensuring the overall reliable performance of the heat dissipation device.

[0042] The heat dissipation device provided by the utility model includes a fan 2, a heat sink 4, and a brush assembly 5. Please refer to Figure 1-2 .

[0043] The radiator 4 is connected to the fan 2. When applied to photovoltaic products, the radiator 4 fits the photovoltaic products to absorb heat, while the fan is used to take away the heat generated when the photovoltaic products are in operation.

[0044] The air inlet and outlet of the fan 2 and the radiator 4 are connected to form a cooling channel, which is essentially a flow path for the airflow. The brush assembly 5 is arranged in the cooling channel to clean the radiator 4 and the fan 2. It should be noted that when the cleaning operation is performed, the radiator 4 and the fan 2 have stopped working.

[0045] In one embodiment, the brush assembly 5 is arranged at the air inlet of the fan 2. When the fan 2 stops working or stops working for a period of time, the brush assembly 5 is driven by the driving assembly to clean the dust and impurities at the air inlet of the fan 2 in time.

[0046] In another embodiment, the brush assembly 5 is arranged at the air inlet position of the radiator 4. When the radiator 4 stops working or stops working for a period of time, the brush assembly 5 is driven by the driving assembly to clean the dust and impurities at the air inlet position of the radiator 4 in time.

[0047] In another embodiment, the brush assembly 5 is arranged at the air outlet of the fan 2. When the fan 2 stops working or stops working for a period of time, the brush assembly 5 is driven by the driving assembly to clean the dust and impurities at the air outlet of the fan 2 in time.

[0048] In the above embodiment, the brush assemblies 5 provided at the air outlet of the fan 2 and the brush assemblies 5 provided at the air inlet of the radiator 4 may share a group or may be provided separately.

[0049] Optionally, the brush assembly 5 may be a rotating brush, a double-sided brush, a single-sided brush, etc.

[0050] After the cleaning operation is completed, the brush assembly 5 needs to be removed from contact with the radiator 4 or the fan 2 so as not to affect the air flow in the cooling channel.

[0051] Taking a specific implementation as an example, the brush assembly 5 is in a horizontal state in the initial state and is not in contact with the fan 2 or the radiator 4. The driving assembly drives the brush assembly 5 to swing or rotate so that it contacts the fan or the radiator 4 for cleaning. After cleaning is completed, the brush assembly 5 is closed by the driving assembly to return it to the initial state.

[0052] Taking another specific implementation as an example, the brush assembly 5 is in a vertical state in the initial state and is not in contact with the fan 2 or the radiator 4. The driving assembly drives the brush assembly 5 to move so that it contacts the fan or the radiator 4 for cleaning. After the cleaning is completed, the brush assembly 5 is closed by the driving assembly to return it to the initial state.

[0053] Taking another specific implementation as an example, the brush assembly 5 is in a vertical state in the initial state and is not in contact with the fan 2 or the radiator 4. The driving assembly drives the brush assembly 5 to move so that it contacts the fan or the radiator 4 for cleaning. After the cleaning is completed, the brush assembly 5 is closed by the driving assembly to return it to the initial state.

[0054] like Figure 1 As shown, specifically, the initial state of the brush assembly 5 should be outside the fan 2, such as in Figure 1The front side or the rear side of the middle fan 2 does not block the air flow path of the fan 2.

[0055] or, as Figure 1 As shown, specifically, the initial state of the brush assembly 5 should be outside the radiator 4, such as in Figure 1 The front side or the rear side of the middle radiator 4 does not block the airflow passage of the fan 2 or the circulation of air in the radiator 4.

[0056] The dust and impurities swept down can be cleaned by removing the brush assembly 5, or they can be directly swept to the outside of the device by the brush assembly 5, and a discharge groove for discharging dust and impurities can be provided corresponding to the brush assembly 5. It should be noted that the dust and impurities swept down must be cleaned before starting the heat dissipation device to avoid the dust and impurities being sucked into the device again after being cleaned.

[0057] Optionally, a control component may also be provided to control the start and stop of the drive component.

[0058] The heat dissipation device comprises a fan 2, a radiator 4, and a brush assembly 5. The air inlet and the air outlet of the fan 2 and the radiator 4 are connected to form a cooling channel. The brush assembly 5 is arranged in the cooling channel, and can clean the fan 2, or clean the radiator 4, or clean the fan 2 and the radiator 4 at the same time. The driving assembly drives the brush assembly 5. When there are debris and dust on the fan 2 and the radiator 4, the driving assembly drives the brush assembly 5 to contact with the fan 2 and / or the radiator 4 to clean the debris and dust, thereby ensuring the heat dissipation effect of the heat dissipation device and ensuring the reliable start of the fan. After the cleaning is completed, the brush assembly 5 is driven by the driving assembly to release the contact with the fan 2 and / or the radiator 4. At this time, the brush assembly 5 will not affect the normal operation of the heat dissipation device and will not interfere with the components. The heat dissipation device can clean the radiator and the fan in a timely and effective manner, avoid dust and impurities affecting the performance and service life of the components, and will not interfere with the normal use of the components after the cleaning operation is completed, thereby ensuring the overall reliable performance of the heat dissipation device.

[0059] Based on the above embodiment, the brush assembly 5 is arranged between the air outlet of the fan 2 and the air inlet of the radiator 4, and the length of the brush assembly 5 in the working state is greater than or equal to the distance between the air outlet of the fan 2 and the air inlet of the radiator 4.

[0060] Please refer to Figure 2 , Figure 3 The brush assembly 5 is disposed between the air outlet of the fan 2 and the air inlet of the radiator 4, and is used to simultaneously clean the dust and impurities at the air outlet of the fan 2 and the air inlet of the radiator 4. The brush assembly 5 is preferably a double-sided brush or a multi-sided brush, which simplifies the structure and ensures a reliable cleaning effect.

[0061] In this embodiment, the brush assembly 5 is preferably a flexible body. When encountering a metal or plastic shell, its structural features will automatically deform to achieve the effect of friction cleaning, thereby ensuring reliable cleaning of dust and impurities.

[0062] On this basis, the length of the brush assembly 5 in the working state (in contact with the fan 2 and / or the radiator 4 for cleaning) is greater than or equal to the distance between the air outlet of the fan 2 and the air inlet of the radiator 4, so that the brush assembly 5 can extend a certain length into the gap between the fan blades or the radiator 4, ensuring that the brush assembly 5 is in full contact with the fan blades and the radiator 4 to clean the dust and impurities in the gap, thereby ensuring an effective cleaning effect.

[0063] Based on any of the above embodiments, the brush assembly 5 includes several layers of detachably connected brushes 51, and the brush 51 is provided with at least one group of brush teeth 511. The driving assembly is used to drive the brush teeth 511 to move to contact or release contact with the fan 2 and / or the radiator 4.

[0064] Please refer to Figure 2-7 The brush assembly 5 includes several layers of detachably connected brushes 51, so that the brush assembly 5 can be flexibly assembled and disassembled for different models of fans 2 and radiators 4, thereby improving the applicability of the brush assembly 5. In this embodiment, the detachable connection method can be a snap connection or a threaded connection, which ensures the reliable stability of the assembled brush 51 during operation.

[0065] At least one set of brush teeth 511 is provided on the brush 51. If one set of brush teeth 511 is provided, it corresponds to a single-sided brush; if two sets of brush teeth 511 are provided, it corresponds to a double-sided brush; if more than two sets of brushes are provided, it corresponds to a multi-sided brush, such as Figure 3 and Figure 5 shown.

[0066] The brush teeth 511 are driven to move by the driving assembly, so that the brush teeth 511 can move to contact with the fan 2 and / or the radiator 4 for cleaning or move to release the contact with the fan 2 and / or the radiator 4 to reach the initial state.

[0067] In this embodiment, the movement of the brush teeth 511 is a "rotational + movable" cleaning operation. The brush teeth 511 can rotate and move at the same time to clean and remove dust and impurities from the surface of the component, thereby ensuring the cleaning effect and avoiding the influence of dust and impurities on the operation of the component.

[0068] On the basis of any of the above embodiments, between two adjacent layers of brushes 51 , one is provided with a stud 12 , and the other is provided with a nut block 11 connected to the stud 12 .

[0069] Please refer to Figure 4-9Each layer of brush 51 includes a plurality of brush teeth 511 arranged circumferentially, and a stud 12 or a nut block 11 is connected to the middle of the plurality of brush teeth 511. One of the two adjacent layers of brush 51 is provided with a stud 12, and the other is provided with a nut block 11 connected to the stud 12. The threaded connection between the stud 12 and the nut block 11 realizes a reliable connection between the two adjacent layers of brush 51.

[0070] If only two layers of brushes 51 are provided, on the basis of the connection between the stud 12 and the nut block 11 , the nut block 11 is further connected to the driving assembly to realize the driving of the two layers of brushes 51 .

[0071] On the basis of any of the above embodiments, the brush teeth 511 are flexible brush teeth, and a plurality of groups of grooves 512 are provided in the length direction of the flexible brush teeth.

[0072] Please refer to Figure 3-6 The brush teeth 511 are flexible teeth. When encountering a metal or plastic shell, the structural characteristics thereof will automatically deform to ensure reliable cleaning of the fan 2 and the radiator 4.

[0073] A plurality of groups of grooves 512 are provided in the length direction of the flexible brush teeth, so that the groove bodies of the grooves 512 and the long sides of the brush teeth can contact the fan 2 and the radiator 4, thereby increasing the contact area for cleaning and ensuring the cleaning effect.

[0074] It should be noted that the long side of the brush teeth here refers to the length of the side in the length direction thereof.

[0075] Based on any of the above embodiments, the driving component includes:

[0076] The limiting slide rail 10 is arranged on the fan bracket 3 of the fan 2;

[0077] The belt 8 is arranged in the limiting slide rail 10;

[0078] The fixed rail 9 is fixed in the limiting slide rail 10, and the brush assembly 5 is respectively engaged with the fixed rail 9 and the belt 8 through the transmission rotating head 13;

[0079] The motor 6 drives the belt 8 to rotate so as to realize the rotation and movement of the brush assembly 5 .

[0080] Please refer to Figure 2 The driving assembly includes a motor 6, a belt 8, a fixed rail 9, and a limit slide rail 10, which are used to realize the rotation and movement of the brush assembly 5. Figure 2 , the rotation axis of the brush assembly 5 is perpendicular to the rotation axis of the fan 2.

[0081] The limiting slide rail 10 is fixedly arranged on the fan bracket 3 of the fan 2 and is a ring-shaped fixed rail. The belt 8 is arranged in the limiting slide rail 10 to limit the moving range of the belt 8 so that it will not exceed the limiting slide rail 10, thereby ensuring the reliable engagement between the two sides of the brush assembly 5 and the belt 8 and the fixed rail 9, and ensuring the smooth and reliable movement and rotation of the brush assembly 5.

[0082] Please refer to Figure 2 The belt 8 and the limiting slide rail 10 have the same shape, but there is a certain distance between the inner wall of the belt 8 and the limiting slide rail 10 to ensure the smooth sliding of the belt 8.

[0083] The fixed rail 9 is fixed in the limiting slide rail 10 , and the fixed rail 9 is reliably fixed by fixing the limiting slide rail 10 and the fan bracket 3 . The fixed rail 9 is specifically a fixedly set rail, which is arranged in the belt 8 and does not affect the transmission of the belt 8 .

[0084] The end of the brush assembly 5 is connected to a transmission rotating head 13, which is in the form of a gear. The brush assembly 5 is meshed with the fixed rail 9 and the belt 8 respectively through the transmission rotating head 13. When the motor 6 drives the belt 8 to rotate, under the joint force of the belt 8 and the fixed rail 9 on the transmission rotating head 13, the transmission rotating head 13 can rotate itself and move along the length direction of the fixed rail 9, thereby realizing the simultaneous movement and rotation of the brush assembly 5 and ensuring the cleaning effect.

[0085] In a specific embodiment, Figure 2 , the initial state of the brush assembly 5 is in the second extreme position 02;

[0086] When the motor 6 drives the belt 8 to rotate in the forward direction, the brush assembly 5 moves along the length direction of the fixed rail 9 and can rotate itself to reach a position in contact with the fan 2 and the radiator 4, and starts the cleaning operation; after the motor 6 rotates forward one circle, it reaches the first extreme position 01, and the brush assembly 5 does not contact the fan 2 at the first extreme position 01. At this extreme position, the brush assembly 5 does not block the airflow of the fan 2.

[0087] After reaching the first extreme position 01, the motor 6 reverses to drive the belt 8 to rotate in the opposite direction, and the brush assembly 5 moves along the length direction of the fixed rail 9 and can rotate itself to reach a position in contact with the fan 2 and the radiator 4, and starts the cleaning operation; after the motor 6 reverses one circle, it reaches the second extreme position 02, and at this extreme position, the brush assembly 5 does not block the airflow of the fan 2.

[0088] The two limit positions (the first limit position 01 and the second limit position 02) reached by the forward and reverse rotation of the motor 6 correspond to the positions of the two ends of the fixed rail 9, such as Figure 2 shown.

[0089] Optionally, in order to ensure the tension of the belt 8, a plurality of tension wheels may be installed in the belt 8 to ensure the reliability of the movement and rotation of the brush assembly 5.

[0090] Optionally, a chassis and a power module may be provided on the radiator 4, and the power module may be used to provide power to the driving component, so that the heat dissipation device may be self-powered to realize the dust and impurity cleaning operation.

[0091] On the basis of any of the above embodiments, the output end of the motor 6 is connected to the driving gear 7 , and the inner side of the belt 8 is also meshed with a driven gear 14 , and the driving gear 7 rotates to drive the driven gear 14 to rotate.

[0092] Please refer to Figure 2-3 The output end of the motor 6 is connected to a driving gear 7, which is arranged at one corner of the belt 8 and meshes with it, and a driven gear 14 is arranged at the other corners inside the belt 8, such as Figure 2 As shown, three driven gears 14 are provided, corresponding to the three corners of the belt 8. In this case, when the motor 6 rotates, the driving gear 7 drives the belt 8 to rotate around the driven gear 14 to achieve power transmission.

[0093] like Figure 2 As shown, the arrangement of the three driven gears 14 can achieve the effect of transmitting power on the one hand, and can maintain the tension of the belt 8 on the other hand, thereby ensuring the accuracy of the rotation and movement of the brush assembly 5.

[0094] Optionally, if only one driven gear 14 is provided, and the driven gear 14 and the driving gear 7 correspond to two sides of the belt 8 , in order to ensure the tension of the belt 8 , a tensioning wheel may be provided on the loose side of the belt 8 .

[0095] Based on any of the above embodiments, the length of the fixed rail 9 is greater than the moving distance of the brush assembly 5 .

[0096] In this embodiment, by limiting the length of the fixed rail 9 to be greater than the moving distance of the brush assembly 5, it is ensured that the brush assembly 5 will not move beyond the limit and cause overturning or collision with other components, thereby ensuring the reliable and safe movement and rotation of the brush assembly 5.

[0097] Optionally, proximity sensors or limit blocks may be provided at both ends of the fixed rail 9 to ensure the moving distance of the brush assembly 5. Taking the setting of the proximity sensor as an example, if the proximity sensor detects the brush assembly 5, the brush assembly 5 has moved close to the limit position and the motor 6 needs to be shut down in time. If the motor 6 fails to shut down in time, a warning light may be provided on the proximity sensor or an alarm module may be provided separately to give an alarm, thereby ensuring the safety and reliability of the movement of the brush assembly 5.

[0098] Based on any of the above embodiments, the fan 2 is arranged on the fan bracket 3, and an opening is provided on the top of the fan bracket 3, and the opening is used to be connected to the installation wall to block the top of the cooling channel.

[0099] Please refer to Figure 1-3 The top of the fan bracket 3 has an opening, and the bottom is closed to facilitate the installation of the fan 2, the motor 6, the limiting slide rail 10 and other components.

[0100] When the heat dissipation device is installed, the opening of the fan bracket 3 has a mounting portion connected to the mounting wall. When the fan bracket 3 is mounted on the wall through the mounting portion and fasteners, the opening can be blocked so that the fan 2 blows air from front to back, and impurities will not enter the top.

[0101] In addition, since the installation wall is directly used as a part of the fan bracket 3, the size of the fan bracket 3 can be reduced, which is convenient for positioning, installation and processing. During installation, there is no need to consider the protective enclosure of the radiator 4, which saves materials and reduces component costs.

[0102] On the basis of any of the above embodiments, it further includes a fan guard plate 1 connected to the fan bracket 3 , and the fan guard plate 1 connects the fan 2 and the fan bracket 3 .

[0103] Please refer to Figure 1-3 The fan guard plate 1 provides protection for the fan 2 to prevent larger debris from entering the fan. When connecting, the fan guard plate 1 and the fan 2 are first connected, and then connected to the fan bracket 3 to fix the fan 2.

[0104] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0105] The above is a detailed introduction to a heat dissipation device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A heat dissipation device, characterized in that: include: Fan (2); A radiator (4), wherein an air inlet of the fan (2), an air outlet of the fan (2), and the radiator (4) are connected to form a cooling channel; A brush assembly (5) is disposed in the cooling channel and is used to clean the fan (2) and / or the radiator (4); A driving assembly is connected to the brush assembly (5) and is used to drive the brush assembly (5) to make contact with or release contact with the fan (2) and / or the radiator (4).

2. The heat dissipation device according to claim 1, characterized in that: The brush assembly (5) is arranged between the air outlet of the fan (2) and the air inlet of the radiator (4); the length of the brush assembly (5) in a working state is greater than or equal to the distance between the air outlet of the fan (2) and the air inlet of the radiator (4).

3. The heat dissipation device according to claim 2, characterized in that: The brush assembly (5) comprises a plurality of layers of detachably connected brushes (51), the brush (51) being provided with at least one group of brush teeth (511), and the drive assembly being used to drive the brush teeth (511) to move so as to contact or release contact with the fan (2) and / or the radiator (4).

4. The heat dissipation device according to claim 3, characterized in that: Between two adjacent layers of the brushes (51), one is provided with a stud (12), and the other is provided with a nut block (11) connected to the stud (12).

5. The heat dissipation device according to claim 4, characterized in that: The brush teeth (511) are flexible brush teeth, and a plurality of groups of grooves (512) are provided in the length direction of the flexible brush teeth.

6. The heat dissipation device according to any one of claims 1 to 5, characterized in that: The drive assembly comprises: A limiting slide rail (10) is arranged on a fan bracket (3) of the fan (2); A belt (8) is arranged in the limiting slide rail (10); A fixed rail (9) is fixed in the limiting slide rail (10), and the brush assembly (5) is respectively engaged with the fixed rail (9) and the belt (8) via a transmission rotating head (13); The motor (6) drives the belt (8) to rotate so as to realize the rotation and movement of the brush assembly (5).

7. The heat dissipation device according to claim 6, characterized in that: The output end of the motor (6) is connected to a driving gear (7), and the inner side of the belt (8) is also meshed with a driven gear (14), and the driving gear (7) rotates to drive the driven gear (14) to rotate.

8. The heat dissipation device according to claim 7, characterized in that: The length of the fixed rail (9) is greater than the moving distance of the brush assembly (5).

9. The heat dissipation device according to claim 1, characterized in that: The fan (2) is arranged on a fan bracket (3); an opening is arranged on the top of the fan bracket (3); the opening is used to be connected to a mounting wall to block the top of the cooling channel.

10. The heat dissipation device according to claim 9, characterized in that: It also comprises a fan guard plate (1) connected to the fan bracket (3), wherein the fan guard plate (1) is connected to the fan (2) and the fan bracket (3).

Images