Dust removal structure, heat dissipation module and electronic product

Abstract

The invention relates to the technical field of electronic product dust removal, in particular to a dust removal structure, a heat dissipation module and an electronic product. The fan assembly comprises a first fan and a second fan, the first fan and the second fan are located on the same plane, and a common isolation retaining wall and a connecting area are arranged between the adjacent sides of the first fan and the second fan. The dust collection assembly comprises a dust collection box, the dust collection box is located in the connecting area, the first fan and the second fan are connected with the dust collection box through dust removal channel assemblies, and the dust removal channel assemblies are used for guiding dust into the dust collection box in the dust removal state. According to the technical scheme, the dust removal effect on the fan assembly can be effectively achieved, the dust collection box is located between the first fan and the second fan, the dust collection function is achieved through an existing structural space, the space occupied by dust collection cannot be additionally increased, and then miniaturization of the dust removal structure can be facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal for electronic products, and in particular to a dust removal structure, a heat dissipation module and an electronic product. Background Art

[0002] As laptops gain more functionality, chip power consumption increases, requiring the overall laptop to have stronger cooling capabilities. Laptops primarily rely on a cooling module composed of heat pipes, fans, and heat sinks for heat dissipation. During operation, the fan draws in external airflow, which is then pressurized and blown out to dissipate heat through the heat pipe fins. During this process, environmental conditions and the static electricity generated by the fan itself can easily cause dust to be attracted to the cooling components.

[0003] Therefore, the heat dissipation module needs to be dusted after a period of use. Dust removal can be done manually or automatically. Manual dust removal requires disassembly and assembly of the equipment, and this is inconvenient due to frequent disassembly and dust removal during the notebook's life cycle. Automatic dust removal uses the fan to reverse and shake off some of the accumulated dust, achieving the purpose of dust removal. However, the blown dust may not be effectively blown out of the casing, but is simply moved from one location on the heat dissipation module to another, resulting in poor dust removal effect. Summary of the Invention

[0004] In order to solve at least the above technical problems existing in the prior art, the present application provides a dust removal structure, a heat dissipation module and an electronic product.

[0005] On the one hand, the present application provides a dust removal structure, including a fan assembly and a dust collecting assembly; the fan assembly includes a first fan and a second fan, the first fan and the second fan are located in the same plane, and a common isolation barrier wall and a connection area are provided between adjacent sides of the first fan and the second fan; the dust collecting assembly includes a dust collecting box, the dust collecting box is located in the connection area, the first fan and the second fan are respectively connected to the dust collecting box through a dust removal channel assembly, and the dust removal channel assembly is used to introduce dust into the dust collecting box in the dust removal state.

[0006] In some embodiments, the fan assembly includes a carrier plate, and the first fan and the second fan respectively include isolation retaining walls, and the isolation retaining walls are located on the carrier plate to enclose the operating areas of the first fan and the second fan; the isolation retaining walls on adjacent sides of the first fan and the second fan are provided with a common section to form the common isolation retaining wall, and one end of the common isolation retaining wall is located on the carrier plate between the isolation retaining walls of the first fan and the second fan to form the connection area.

[0007] In some embodiments, a dust box retaining wall is provided at the edge of the carrier plate in the connection area, and both ends of the dust box retaining wall are respectively connected to the isolation retaining wall on the same side; the dust box is enclosed between the dust box retaining wall and the isolation retaining wall.

[0008] In some embodiments, the dust removal channel assembly includes an opening and a valve; the first fan and the second fan are connected to the dust collection box through the opening, and the valve is used to control the opening and closing of the opening.

[0009] In some embodiments, the valve includes a valve body, one end of which is rotatably connected to the side wall of the opening, and the valve body includes a first air guide surface and a second air guide surface; in the heat dissipation state, the forward airflow of the fan assembly blows toward the first air guide surface, and keeps the valve body and the opening closed; in the dust removal state, the reverse airflow of the fan assembly blows toward the second air guide surface, and keeps the valve body and the opening open, and the second air guide surface is used to guide the reverse airflow into the dust collection box.

[0010] In some embodiments, the length of the valve body is greater than the width of the opening; in the heat dissipation state, the end of the valve body away from the rotating connection end is located in the air flow channel of the fan assembly and overlaps the opening; in the dust removal state, the valve body is separated from the opening by the reverse airflow drive of the fan assembly.

[0011] In some embodiments, in the dust removal state, the valve body rotates into the air flow channel of the fan assembly; an end of the valve body away from the rotating connection end has a set gap with the edges of the fan blades in the first fan and the second fan.

[0012] In some embodiments, the dust collecting box is further provided with an air outlet, and the air outlet is provided with a filter assembly.

[0013] On the other hand, the present application also provides a heat dissipation module, including the above-mentioned dust removal structure.

[0014] On another aspect, the present application further provides an electronic product, including the above-mentioned dust removal structure or the above-mentioned heat dissipation module.

[0015] This application provides a dust removal structure, heat dissipation module, and electronic product. When the fan assembly is operating normally, it functions as a heat dissipation module for heat dissipation. When dust removal is required, the fan assembly operates in reverse, transferring dust within the fan module through the dust removal channel assembly into a dust collection box. This technical solution effectively removes dust from the fan assembly, and the dust collection box is located between the first and second fans, utilizing the existing structural space to complete the dust collection function without increasing the space occupied by dust collection, thereby facilitating the miniaturization of the dust removal structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the exemplary embodiments of the present application will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present application are shown in an illustrative and non-limiting manner, in which:

[0017] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0018] Figure 1 A schematic diagram of the structure of the dust removal structure provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the heat dissipation state of the dust removal structure provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the dust removal state of the dust removal structure provided in an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the structure of the valve in the dust removal structure provided in an embodiment of the present application.

[0022] In the picture:

[0023] 10: Fan assembly; 20: Dust collection assembly; 30: Dust removal channel assembly;

[0024] 11: First fan; 12: Second fan; 13: Shared isolation wall; 14: Connection area; 15: Carrier board; 16: Isolation wall;

[0025] 21: dust box; 22: dust box retaining wall;

[0026] 31: opening; 32: valve; 321: valve body; 322: first air guide surface; 323: second air guide surface. DETAILED DESCRIPTION

[0027] In order to make the purpose, features, and advantages of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0028] An embodiment of the present application provides a dust removal structure, including a fan assembly and a dust collecting assembly; the fan assembly can be used for heat dissipation when running in the forward direction, and can be used for dust removal when running in the reverse direction. During the dust removal process, the dust accumulated in the fan assembly can be blown into the dust collecting assembly.

[0029] The following is a detailed description of the components of the dust removal structure provided in the embodiment of the present application, as well as the connection relationship and position relationship of the components, in conjunction with the accompanying drawings.

[0030] like Figure 1 As shown, in the embodiment of the present application, the fan assembly 10 includes a first fan 11 and a second fan 12, the first fan 11 and the second fan 12 are located in the same plane, and a common isolation retaining wall 13 and a connection area 14 are provided between adjacent sides of the first fan 11 and the second fan 12; as shown in the figure, the corners of the first fan 11 and the second fan 12 are both arc-shaped, the part where the adjacent sides of the first fan 11 and the second fan 12 are connected is the common isolation retaining wall 13, and the area where the arc-shaped part is not connected forms a space with a certain interval, which is the connection area 14.

[0031] For example, the fan assembly 10 includes a carrier plate 15, and the first fan 11 and the second fan 12 respectively include an isolation retaining wall 16, and the isolation retaining wall 16 is located on the carrier plate 15 to enclose the working area of ​​the first fan 11 and the second fan 12; the isolation retaining walls 16 on the adjacent sides of the first fan 11 and the second fan 12 are provided with a common section to form a common isolation retaining wall 13, and a connection area 14 is formed on one end of the common isolation retaining wall 13 on the carrier plate 15 between the isolation retaining walls 16 of the first fan 11 and the second fan 12.

[0032] When the fan assembly 10 is in dual-fan mode, the adjacent sides of the two fans will inevitably form a connection area 14. In the embodiment of the present application, the dust box 21 is arranged in the connection area 14, that is, the space occupied by the connection area 14 is fully utilized, so that the dust box 21 does not need to occupy additional space.

[0033] In the embodiment of the present application, the first fan 11 and the second fan 12 are respectively connected to the dust box 21 via a dust removal channel assembly 30. The dust removal channel assembly 30 is used to introduce dust into the dust box 21 during the dust removal state. In the dust removal state, dust is collected in the dust box 21 along a set path, achieving targeted dust collection. The dust box 21 can then be cleaned regularly. Since the dust box 21 has a certain storage space, the cleaning cycle is extended, and the dust box 21 does not need to be frequently disassembled and assembled.

[0034] Continue to refer Figure 1 As shown, in the embodiment of the present application, a dust box retaining wall 22 is provided at the edge of the carrier plate 15 in the connection area 14, and the two ends of the dust box retaining wall 22 are respectively connected to the isolation retaining wall 16 on the same side; a dust collecting box 21 is enclosed between the dust box retaining wall 22 and the isolation retaining wall 16.

[0035] The dust box retaining wall 22 cooperates with the isolation retaining wall 16 to enclose the dust box 21 in the connection area 14. Both the dust box retaining wall 22 and the isolation retaining wall 16 cooperate with the carrier plate 15 to enclose a predetermined space, integrating the spatial structure into one, making the structure more compact and avoiding the increase in size caused by the superposition / stacking of independent structures. Part of the isolation retaining wall 16 is shared with the dust box retaining wall 22, further saving space.

[0036] like Figure 4 As shown, in this embodiment of the present application, the dust removal duct assembly 30 includes an opening 31 and a valve 32. The first fan 11 and the second fan 12 communicate with the dust box 21 through the opening 31, and the valve 32 is used to control the opening and closing of the opening 31. When the fan assembly 10 is operating normally, used for heat dissipation, the dust removal duct assembly 30 should be closed, that is, the airflow generated by the fan assembly 10 should not enter the dust box 21. In the dust removal mode, the fan assembly 10 operates in reverse to concentrate dust into the dust box 21. At this time, the dust removal duct assembly 30 should be open.

[0037] For example, the valve 32 includes a valve body 321, one end of the valve body 321 is rotatably connected to the side wall of the opening 31, and the valve body 321 includes a first air guide surface 322 and a second air guide surface 323; in the heat dissipation state, the forward airflow of the fan assembly 10 blows toward the first air guide surface 322, and keeps the valve body 321 and the opening 31 closed; in the dust removal state, the reverse airflow of the fan assembly 10 blows toward the second air guide surface 323, and keeps the valve body 321 and the opening 31 open, and the second air guide surface 323 is used to guide the reverse airflow into the dust collection box 21.

[0038] It can be seen that in the heat dissipation state, the first air guide surface 322 and the inner surface of the isolation baffle 16 form an integral air guide surface, which is used to guide the heat dissipation airflow; in the dust removal state, the valve body 321 is opened, and part of the reverse airflow is blown onto the second air guide surface 323. Under the action of the second air guide surface 323, the reverse airflow is introduced into the dust collecting box 21. The reverse airflow contains dust impurities, so that part of the dust impurities remain in the dust collecting box 21, thereby achieving the purpose of dust removal.

[0039] For example, when the velocity of the reverse airflow during dust removal is relatively low, the dust impurities in the airflow are brought into and accumulated in the dust box 21 under the action of centrifugal force; in addition, an air outlet (not shown) may be provided on the dust box 21, and a filter assembly (not shown) may be provided on the air outlet. The airflow entering the dust box 21 flows out through the air outlet. Due to the provision of the filter assembly, the airflow can be filtered, and the dust impurities can be concentratedly filtered and remain in the dust box 21. The form of providing the air outlet can avoid the airflow being disturbed in the dust box 21 and affecting the collection of dust impurities when the velocity of the reverse airflow is relatively high.

[0040] For example, in an embodiment of the present application, the length of the valve body 321 is greater than the width of the opening 31; in the heat dissipation state, the end of the valve body 321 away from the rotating connection end is located in the air flow channel of the fan assembly 10 and overlaps the opening 31; in the dust removal state, the valve body 321 is separated from the opening 31 by the reverse airflow drive of the fan assembly 10.

[0041] In the heat dissipation state, the airflow formed by the fan assembly 10 acts on the first air guide surface 322 of the valve body 321, and the valve body 321 is in a positive pressure state. It will automatically close under the action of the airflow and can perform heat dissipation normally; in the dust removal state, the airflow flows in the opposite direction, and the valve body 321 is in a negative pressure state. The valve body 321 is automatically opened, and part of the airflow will act on the second air guide surface 323 of the valve body 321 and enter the dust collecting box 21.

[0042] In the embodiment of the present application, in the dust removal mode, the valve body 321 rotates into the airflow channel of the fan assembly 10; the end of the valve body 321 away from the rotating connection end is spaced apart from the edges of the blades of the first fan 11 and the second fan 12. That is, even when the valve body 321 is fully open, the valve body 321 does not completely cover the airflow channel of the fan assembly 10. Part of the airflow flows within the airflow channel, while part of the airflow is directed into the dust collection box 21 by the action of the valve body 321. Dust and impurities have a certain mass, and under the action of centrifugal force, these dust and impurities are thrown to the edge by the airflow and then enter the dust collection box 21 with the airflow.

[0043] The size of the set interval can be determined according to factors such as the air flow rate during dust removal and the size of the dust box 21.

[0044] The embodiment of the present application provides a heat dissipation module, including the above-mentioned dust removal structure. The present application also provides an electronic product, including the above-mentioned dust removal structure or including the above-mentioned heat dissipation module. Figure 2 As shown, when the fan assembly 10 is operating normally, it is used for heat dissipation, the valve body 321 is closed, and the heat generated by the heating components in the electronic product is taken away by the flowing air flow.

[0045] In the dust removal state, in order to improve the dust removal effect, first perform the dust shaking operation. For example, during the dust shaking operation, the machine stops in the forward direction (the direction of rotation during heat dissipation), rotates in the reverse direction (the direction of rotation during dust removal) at high speed for 10 seconds and then stops, and then rotates in the forward direction at high speed for 10 seconds and then stops. After completing the dust shaking operation, Figure 3 As shown, the fan assembly 10 rotates again at a high speed in the reverse direction for 10 minutes to complete the dust removal. For example, the rotation speed of the fan assembly 10 is greater than 5000 rpm.

[0046] The present application provides a dust removal structure, heat dissipation module, and electronic product. When the fan assembly 10 operates normally, it serves as a heat dissipation module for heat dissipation. When dust removal is required, the fan assembly 10 operates in reverse, sending dust within the fan module into the dust collection box 21 via the dust removal channel assembly 30. The technical solution of the present application effectively removes dust from the fan assembly 10, and the dust collection box 21 is located between the first fan 11 and the second fan 12, utilizing the existing structural space to complete the dust collection function without increasing the space occupied by the dust collection unit, thereby facilitating the miniaturization of the dust removal structure.

[0047] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0049] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A dust removal structure, characterized in that: It comprises a fan assembly (10) and a dust collecting assembly (20); The fan assembly (10) comprises a first fan (11) and a second fan (12), wherein the first fan (11) and the second fan (12) are located in the same plane, and a common isolation wall (13) and a connection area (14) are provided between adjacent sides of the first fan (11) and the second fan (12); The dust collecting assembly (20) includes a dust collecting box (21), the dust collecting box (21) is located in the connection area (14), the first fan (11) and the second fan (12) are connected to the dust collecting box (21) respectively via a dust removal channel assembly (30), and the dust removal channel assembly (30) is used to introduce dust into the dust collecting box (21) in the dust removal state.

2. The dust removal structure according to claim 1, characterized in that: The fan assembly (10) comprises a carrier plate (15), the first fan (11) and the second fan (12) respectively comprise an isolation retaining wall (16), and the isolation retaining wall (16) is located on the carrier plate (15) to enclose an operating area of ​​the first fan (11) and the second fan (12); The isolation retaining walls (16) on adjacent sides of the first fan (11) and the second fan (12) are provided with a common section to form the common isolation retaining wall (13); one end of the common isolation retaining wall (13) is located on the carrier plate (15) between the isolation retaining walls (16) of the first fan (11) and the second fan (12) to form the connection area (14).

3. The dust removal structure according to claim 2, characterized in that: A dust box retaining wall (22) is provided at the edge of the carrier plate (15) in the connection area (14), and both ends of the dust box retaining wall (22) are respectively connected to the isolation retaining wall (16) on the same side; The dust box retaining wall (22) and the isolation retaining wall (16) enclose the dust collecting box (21).

4. The dust removal structure according to claim 1, characterized in that: The dust removal channel assembly (30) includes an opening (31) and a valve (32); The first fan (11) and the second fan (12) are in communication with the dust collecting box (21) through the opening (31), and the valve (32) is used to control the opening and closing of the opening (31).

5. The dust removal structure according to claim 4, characterized in that: The valve (32) comprises a valve body (321), one end of the valve body (321) is rotatably connected to the side wall of the opening (31), and the valve body (321) comprises a first air guide surface (322) and a second air guide surface (323); In the heat dissipation state, the forward airflow of the fan assembly (10) blows toward the first air guide surface (322), and keeps the valve body (321) and the opening (31) closed. In the dust removal state, the reverse airflow of the fan assembly (10) blows toward the second air guide surface (323), and keeps the valve body (321) and the opening (31) open, and the second air guide surface (323) is used to guide the reverse airflow into the dust collecting box (21).

6. The dust removal structure according to claim 5, characterized in that: The length of the valve body (321) is greater than the width of the opening (31); In the heat dissipation state, the end of the valve body (321) away from the rotating connection end is located in the air flow channel of the fan assembly (10) and overlaps the opening (31); In the dust removal state, the valve body (321) is separated from the opening (31) by the reverse airflow drive of the fan assembly (10).

7. The dust removal structure according to claim 6, characterized in that: In the dust removal state, the valve body (321) rotates into the air flow channel of the fan assembly (10); An end of the valve body (321) away from the rotating connection end has a set interval with the edges of the blades of the first fan (11) and the second fan (12).

8. The dust removal structure according to any one of claims 1 to 7, characterized in that: The dust collecting box (21) is also provided with an air outlet, and the air outlet is provided with a filter assembly.

9. A heat dissipation module, characterized in that: The utility model comprises the dust removal structure according to any one of claims 1 to 8.

10. An electronic product, characterized in that: It comprises the dust removal structure according to any one of claims 1 to 8 or the heat dissipation module according to claim 9.

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