CN112987467A - Dustproof heat dissipation device, electronic equipment and dustproof control method - Google Patents

Dustproof heat dissipation device, electronic equipment and dustproof control method Download PDF

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Publication number
CN112987467A
CN112987467A CN202110433358.3A CN202110433358A CN112987467A CN 112987467 A CN112987467 A CN 112987467A CN 202110433358 A CN202110433358 A CN 202110433358A CN 112987467 A CN112987467 A CN 112987467A
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China
Prior art keywords
dust removing
heat dissipation
dust
dustproof
fan
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CN202110433358.3A
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Chinese (zh)
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CN112987467B (en
Inventor
代胜伟
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Chengdu Jimi Technology Co Ltd
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Chengdu Jimi Technology Co Ltd
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Priority to CN202110433358.3A priority Critical patent/CN112987467B/en
Publication of CN112987467A publication Critical patent/CN112987467A/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/16Cooling; Preventing overheating
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/145Housing details, e.g. position adjustments thereof

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The embodiment of the invention provides a dustproof heat dissipation device, electronic equipment and a dustproof control method, and relates to the technical field of electronic equipment. The dustproof heat dissipation device provided by the embodiment of the invention comprises a heat dissipation structure, a dust removal piece and a fan. The heat radiation structure is used for setting up the air outlet department at the casing, and the piece that removes dust is used for cleaing away the impurity that attaches to heat radiation structure, and the fan is used for producing the air current through heat radiation structure, so breaks away from the back when the impurity that attaches to heat radiation structure from heat radiation structure, can discharge from the air outlet under the drive of air current, and a large amount of heats can be taken away in the flow of heat radiation structure department to gaseous moreover, satisfies the inside heat dissipation demand of casing. Can satisfy the dustproof demand of the inside heat dissipation of casing through this dustproof heat abstractor, compare in the mode that sets up the dust screen in the air intake department of casing among the prior art, this dustproof heat abstractor can not lead to the fact the influence to the trompil of complete machine, and then just can not influence the complete machine outward appearance yet.

Description

Dustproof heat dissipation device, electronic equipment and dustproof control method
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a dustproof heat dissipation device, electronic equipment and a dustproof control method.
Background
A projector is an electronic device that projects an image or video, and is widely used in various fields. In the use, the inside a large amount of heats that can produce of projecting apparatus, in order to satisfy the heat dissipation demand of projecting apparatus, generally need set up air intake and air outlet on the projecting apparatus, take away the heat in the electronic equipment through the gas flow. Meanwhile, impurities such as fibers and dust in the gas can enter the projector along with the gas, and after the projector is used for a period of time, the impurities such as the fibers and the dust can be deposited in the electronic equipment, so that the noise of the electronic equipment is increased, and the electronic equipment can be seriously or even not used.
At present, some dustproof structures are arranged on electronic equipment such as a projector, and in the prior art, a dustproof mode of the projector is that a dustproof net is additionally arranged at an air inlet so as to reduce impurities such as dust entering the inside of the projector, however, the mode needs a larger air inlet area and has a larger influence on the appearance of the whole projector.
Disclosure of Invention
The object of the present invention includes, for example, providing a dustproof heat sink which can improve the above technical problems in the prior art.
It is also an object of the present invention to provide an electronic device that improves upon the above-mentioned technical problems of the prior art.
It is also an object of the present invention to provide a dust control method that improves upon the above-mentioned technical problems of the prior art.
Embodiments of the invention may be implemented as follows:
the embodiment of the invention provides a dustproof heat dissipation device, which is used for performing dustproof heat dissipation on the interior of a shell, wherein the shell is provided with an air outlet, and the dustproof heat dissipation device comprises: the heat dissipation structure is arranged at the air outlet; the dust removal piece is used for removing impurities attached to the heat dissipation structure; and the fan is used for generating airflow passing through the heat dissipation structure so as to enable the airflow to carry the impurities to be discharged from the air outlet.
Optionally, the dust removing member is located between the heat dissipation structure and the fan.
Optionally, the dust removing part comprises a dust removing rod and a dust removing brush connected to the dust removing rod, the dust removing rod can rotate relative to the heat dissipation structure, and impurities on the heat dissipation structure are removed under the condition that the dust removing brush rotates relative to the heat dissipation structure.
Optionally, under the condition that the ash removal rod rotates, the dust removal piece is switched between an initial state and an intermediate state;
when the dust removing piece is in the initial state, the dust removing brush is positioned in the heat dissipation structure, and when the dust removing piece is in the intermediate state, the dust removing brush is positioned outside the heat dissipation structure; alternatively, the first and second electrodes may be,
when the dust removing piece is in the initial state, the dust removing brush is positioned outside the heat dissipation structure, and when the dust removing piece is in the intermediate state, the dust removing brush is positioned in the heat dissipation structure.
Optionally, the dust removing part includes a first dust removing part and a second dust removing part, and the first dust removing part and the second dust removing part are oppositely disposed on two sides of the heat dissipation structure.
Optionally, the dust removing brush of the first dust removing part and the dust removing brush of the second dust removing part are arranged in a staggered manner, and when the dust removing brush of the first dust removing part is located in the heat dissipation structure, the dust removing brush of the second dust removing part is located outside the heat dissipation structure.
Optionally, the heat dissipation structure includes a plurality of heat dissipation fins that are arranged at intervals in sequence, the dust removal brush includes a plurality of bristles that are distributed along the arrangement direction of the plurality of heat dissipation fins, and the bristles are arranged between two adjacent heat dissipation fins under the condition that the dust removal brush is located in the heat dissipation structure.
Optionally, the dustproof heat dissipation device further comprises a driving piece, a driving gear and a transmission gear, the driving piece is in transmission connection with the driving gear, the driving gear is meshed with the transmission gear, and the transmission gear is connected to the dust removal piece to drive the dust removal piece to rotate.
Optionally, the dustproof heat dissipation device further includes a first fixing member and a second fixing member, and the first fixing member and the second fixing member are respectively fixedly connected to two sides of the heat dissipation structure; the two ends of the dust removing piece are respectively and rotatably connected to the first fixing piece and the second fixing piece.
Optionally, one end of the dust removing piece is fixedly connected with the transmission gear, the other end of the dust removing piece is provided with a limiting boss, and the limiting boss is used for abutting against the wall face of the first fixing piece far away from one side of the second fixing piece.
The embodiment of the invention also provides the electronic equipment. The electronic equipment comprises a shell and the dustproof heat dissipation device, wherein the heat dissipation structure of the dustproof heat dissipation device is arranged at the air outlet of the shell.
The embodiment of the invention also provides a dustproof control method. The dustproof control method is used for controlling the electronic equipment, and comprises the following steps:
under the condition that a starting instruction is obtained, controlling the fan to operate at a first preset rotating speed, and controlling the dust removing piece to operate for a preset working period and then stop;
after the dust removing piece stops running, controlling the fan to run at a second preset rotating speed;
the first preset rotating speed is the full rotating speed of the fan, and the first preset rotating speed is greater than the second preset rotating speed.
Optionally, after the step of controlling the fan to operate at the second preset rotation speed, the dust control method further includes:
under the condition that a dust removal instruction is obtained, controlling the fan to operate at a first preset rotating speed, and controlling the dust removal piece to operate for a preset working period and then stop; and after the dust removing piece stops running, controlling the fan to run at a second preset rotating speed.
The embodiment of the invention also provides a dustproof control method. The dustproof control method is used for controlling the electronic equipment, and comprises the following steps:
acquiring a starting instruction and the running time of the electronic equipment, if the running time reaches a preset time, controlling the fan to run at a first preset rotating speed, and controlling the dust removing part to run for a preset working period and then stop;
after the dust removing piece stops running, controlling the fan to run at a second preset rotating speed;
the first preset rotating speed is the full rotating speed of the fan, and the first preset rotating speed is greater than the second preset rotating speed.
The dustproof heat dissipation device, the electronic equipment and the dustproof control method provided by the embodiment of the invention have the beneficial effects that:
the dustproof heat dissipation device provided by the embodiment of the invention is used for performing dustproof heat dissipation on the interior of the shell, and the shell is provided with an air outlet. The dustproof heat dissipation device comprises a heat dissipation structure, a dust removal piece and a fan. The heat radiation structure is used for setting up the air outlet department at the casing, and the piece that removes dust is used for cleaing away the impurity that attaches to heat radiation structure, and the fan is used for producing the air current through heat radiation structure, so breaks away from the back when the impurity that attaches to heat radiation structure from heat radiation structure, can discharge from the air outlet under the drive of air current, and a large amount of heats can be taken away in the flow of heat radiation structure department to gaseous moreover, satisfies the inside heat dissipation demand of casing. Can satisfy the dustproof demand of the inside heat dissipation of casing through this dustproof heat abstractor, compare in the mode that sets up the dust screen in the air intake department of casing among the prior art, this dustproof heat abstractor can not lead to the fact the influence to the trompil of complete machine, and then just can not influence the complete machine outward appearance yet.
The embodiment of the invention also provides electronic equipment which comprises the dustproof heat dissipation device. Because the electronic equipment comprises the dustproof heat dissipation device, the dustproof heat dissipation device has all the beneficial effects of the dustproof heat dissipation device.
The embodiment of the invention also provides a dustproof control method which is used for controlling the electronic equipment.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a dustproof heat dissipation apparatus according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure view of a dust removing member in the dustproof heat dissipating device according to the embodiment of the present invention in an initial state;
fig. 4 is a schematic cross-sectional view illustrating a dust removing member of the dustproof heat dissipating apparatus according to the embodiment of the present invention in an intermediate state;
fig. 5 is a partial structural schematic view of a first fixing member in the dust-proof heat dissipation device according to the embodiment of the present invention;
fig. 6 is a schematic partial structure diagram of a dustproof heat dissipation apparatus according to an embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of a heat dissipation structure in the dustproof heat dissipation device according to an embodiment of the present invention;
FIG. 8 is a step diagram of a method for controlling dust control according to an embodiment of the present invention;
FIG. 9 is a flowchart of another method for controlling dust control according to an embodiment of the present invention;
fig. 10 is a flowchart illustrating a method for controlling dust control according to another embodiment of the present invention.
Icon: 10-an electronic device; 100-dustproof heat dissipation device; 110-a fan; 111-a chamber; 120-a dust removal member; 121-a first dust removal member; 122-a second dust-removing member; 123-ash removal rod; 124-a dust removal brush; 125-bristles; 126-a limit boss; 130-a heat dissipation structure; 131-heat dissipation fins; 132-a first fin portion; 133-a second fin portion; 134-a heat pipe; 141-a first fixture; 142-a first limit notch; 143-a second fixing member; 144-a second limit notch; 145-grooves; 151-a drive member; 152-a drive gear; 153-a first drive gear; 154-a second drive gear; 200-a housing; 210-air outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Fig. 1 is a schematic structural diagram of an electronic device 10 according to this embodiment, and fig. 2 is a schematic structural diagram of a dustproof heat dissipation apparatus 100 according to this embodiment. Referring to fig. 1 and fig. 2, the present embodiment provides a dustproof heat dissipation apparatus 100, and accordingly, provides an electronic device 10.
The electronic device 10 includes a dust-proof heat sink 100 and a housing 200. The heat dissipation structure 130 of the dustproof heat dissipation device 100 is disposed at the air outlet 210 of the housing 200. Meanwhile, the electronic components of the electronic device 10 are also disposed in the housing 200, and the dustproof and heat dissipation of the interior of the housing 200 is realized by the dustproof and heat dissipation device 100. Optionally, in this embodiment, the electronic device 10 is a projector, and accordingly, the electronic device disposed in the housing 200 includes a projection component, and it is understood that in other embodiments, the specific type of the electronic device 10 may be set according to requirements.
The dustproof heat dissipation device 100 is used for performing dustproof heat dissipation on the inside of the housing 200, and the housing 200 has an air outlet 210. The dustproof heat dissipation device 100 includes a heat dissipation structure 130, a dust removing member 120, and a fan 110. The heat dissipation structure 130 is disposed at the air outlet 210 of the housing 200, the dust removing member 120 is used for removing impurities attached to the heat dissipation structure 130, and the fan 110 is used for generating an air flow passing through the heat dissipation structure 130, so that the impurities attached to the heat dissipation structure 130 can be discharged from the air outlet 210 under the driving of the air flow after being separated from the heat dissipation structure 130, and the air flow at the heat dissipation structure 130 can take away a large amount of heat, thereby satisfying the heat dissipation requirement inside the housing 200. Can satisfy the dustproof demand of the inside heat dissipation of casing 200 through this dustproof heat abstractor 100, compare in the mode that sets up the dust screen in the air intake department of casing 200 among the prior art, this dustproof heat abstractor 100 can not lead to the fact the influence to the trompil of complete machine, and then can not influence the complete machine outward appearance yet.
The dust-proof heat dissipation apparatus 100 provided in this embodiment is further described below:
fig. 3 is a schematic cross-sectional structure view of the dust-removing part 120 of the dustproof heat dissipation device 100 provided in this embodiment in an initial state, and fig. 4 is a schematic cross-sectional structure view of the dust-removing part 120 of the dustproof heat dissipation device 100 provided in this embodiment in an intermediate state. Referring to fig. 2 to 4, in the present embodiment, the dust removing member 120 is located between the heat dissipation structure 130 and the fan 110, so that impurities such as dust and fiber between the heat dissipation structure 130 and the fan 110 can be effectively removed, the impurities are prevented from being deposited between the heat dissipation structure 130 and the fan 110, and effective air outlet at the heat dissipation structure 130 is ensured.
The dust removing member 120 includes an ash removing rod 123 and a dust removing brush 124 connected to the ash removing rod 123, and the ash removing rod 123 can rotate relative to the heat dissipating structure 130, so as to drive the dust removing brush 124 on the ash removing rod 123 to rotate relative to the heat dissipating structure 130. When the dust removing brush 124 and the heat dissipating structure 130 rotate relatively, the dust removing brush 124 can remove impurities attached to the heat dissipating structure 130.
Specifically, the dustproof heat dissipation device 100 further includes a first fixing member 141 and a second fixing member 143, and the first fixing member 141 and the second fixing member 143 are respectively fixedly connected to two sides of the heat dissipation structure 130. The two ends of the dust removing member 120 are rotatably connected to the first fixing member 141 and the second fixing member 143, respectively, that is, the ends of the two axial ends of the ash removing rod 123 are rotatably connected to the first fixing member 141 and the second fixing member 143, respectively. It can be understood that, in other embodiments, the connection position of the dust removing member 120 may be set according to the requirement, so as to ensure that the ash removing rod 123 and the dust removing brush 124 thereon can rotate relative to the heat dissipating structure 130. Alternatively, the first fixing member 141 and the second fixing member 143 are fastened to the heat dissipation structure 130 by screws.
Fig. 5 is a schematic partial structure diagram of the first fixing element 141 of the dustproof heat dissipation apparatus 100 according to this embodiment. Referring to fig. 2 to fig. 5, optionally, a first limiting notch 142 is disposed on the first fixing member 141, one end of the ash removing rod 123 is limited in the first limiting notch 142, and the ash removing rod 123 can rotate in the first limiting opening, so as to realize the rotational connection between the ash removing rod 123 and the first fixing member 141. One end of the dust removing member 120 is provided with a limiting boss 126, when the dust removing member 120 penetrates through the first limiting notch 142 and is connected with the first fixing member 141 in a rotating manner, the limiting boss 126 is located at one end of the first fixing member 141 far away from the second fixing member 143, and meanwhile, the limiting boss 126 is used for abutting against the wall surface of the first fixing member 141 far away from one side of the second fixing member 143, namely, the cross section of the limiting boss 126 is larger than that of the first limiting notch 142, so that the movement of the dust removing member 120 along the direction from the first fixing member 141 to the second fixing member 143 is limited.
Meanwhile, in the process that the dust removing rod 123 rotates relative to the heat dissipation structure 130, the whole dust removing part 120 is switched between the initial state and the intermediate state. When the dust removing member 120 is in the initial state, the dust removing brush 124 is located in the heat dissipating structure 130; when the dust removing member 120 is in the intermediate state, the dust removing brush 124 is located outside the heat dissipating structure 130. It is understood that the position of the dust removing brush 124 may also be set such that the dust removing brush 124 is located outside the heat dissipating structure 130 when the dust removing member 120 is in the initial state; when the dust removing member 120 is in the neutral state, the dust removing brush 124 is located in the heat dissipating structure 130. That is, when the dust removing member 120 is switched between the initial state and the intermediate state, the dust removing brush 124 enters and exits the heat dissipation structure 130.
Specifically, the fan 110 has a chamber 111 for forming an air passage along which the air flow generated by the fan 110 enters the heat dissipation structure 130. After the dust removing brush 124 leaves from the heat dissipating structure 130, the dust removing brush 124 enters the cavity 111 of the fan 110, i.e. in the structure shown in the present embodiment, the dust removing brush 124 is located outside the heat dissipating structure 130, which means that the dust removing brush 124 is located inside the cavity 111 of the fan 110.
In this embodiment, the dustproof heat sink 100 further includes a driving member 151, a driving gear 152, and a transmission gear. The driving member 151 is in transmission connection with the driving gear 152, so that the driving gear 152 can rotate under the driving action of the driving member 151. The driving gear 152 is engaged with the transmission gear, and the transmission gear is connected to the dust removing part 120, so that when the driving gear 152 rotates, the driving gear 152 drives the transmission gear to rotate, and the transmission gear drives the dust removing part 120 to rotate, thereby realizing the switching of the dust removing part 120 between the initial position and the intermediate position. Specifically, the driving member 151 is a driving motor, and the transmission gear is riveted to one end of the ash removal rod 123, so that the transmission gear is fixedly connected with the dust removal member 120.
Fig. 6 is a partial schematic structural diagram of the dustproof heat dissipation apparatus 100 according to this embodiment. Referring to fig. 2 to fig. 6, alternatively, one end of the ash removal rod 123 close to the second fixing element 143 is fixedly connected to the transmission gear, so that the transmission gear, the driving gear 152 and the driving element 151 are all located at one end of the heat dissipation structure 130 where the second fixing element 143 is disposed. Specifically, the second fixing member 143 is provided with a second limiting notch 144 through which the ash removing rod 123 passes, one end of the ash removing rod 123 far away from the limiting boss 126 is located on one side of the second fixing member 143 far away from the first fixing member 141, and the transmission gear is fixedly connected to the end of the ash removing rod 123.
Optionally, the driving member 151 has a transmission rod fixedly connected to the driving gear 152, and the driving gear 152 is sleeved on the transmission rod and is in transmission connection with the transmission rod. One end of the transmission rod protrudes out of the driving gear 152 to be located between the second fixing member 143 and the driving gear 152. The second fixing member 143 is further provided with a groove 145 for receiving an end portion of the driving rod.
With reference to fig. 2 to fig. 6, in the present embodiment, the number of the dust removing members 120 is two, the two dust removing members 120 are respectively a first dust removing member 121 and a second dust removing member 122, and the first dust removing member 121 and the second dust removing member 122 are oppositely disposed on two sides of the heat dissipation structure 130, so that the impurities on the heat dissipation structure 130 are removed by the mutual cooperation of the first dust removing member 121 and the second dust removing member 122.
Further, the dust removing brush 124 of the first dust removing member 121 and the dust removing brush 124 of the second dust removing member 122 are disposed in a staggered manner, so that when the dust removing brush 124 of the first dust removing member 121 is located in the heat dissipation structure 130, the dust removing brush 124 of the second dust removing member 122 is located outside the heat dissipation structure 130, and correspondingly, when the dust removing brush 124 of the first dust removing member 121 is located outside the heat dissipation structure 130, the dust removing brush 124 of the second dust removing member 122 is located in the heat dissipation structure 130. Specifically, when the dust removing members 120 are in the initial state, the dust removing brush 124 of the first dust removing member 121 is located inside the heat dissipation structure 130, and the dust removing brush 124 of the second dust removing member 122 is located outside the heat dissipation structure 130; when the dust removing members 120 are in the intermediate state, the dust removing brush 124 of the first dust removing member 121 is located outside the heat dissipation structure 130, and the dust removing brush 124 of the second dust removing member 122 is located inside the heat dissipation structure 130. Thus, during the operation of the dustproof heat dissipation device 100, the dust removing brush 124 of the first dust removing part 121 and the dust removing brush 124 of the second dust removing part 122 alternately enter the heat dissipation structure 130.
In the description of the present embodiment, the phrase "the dust removing brush 124 of the first dust removing member 121 and the dust removing brush 124 of the second dust removing member 122 are disposed in a staggered manner" means that an angle formed by the dust removing brush 124 of the first dust removing member 121 and a vertical direction is different from an angle formed by the dust removing brush 124 of the second dust removing member 122 and a vertical direction, in other words, if the first dust removing member 121 is translated until the ash removing rod 123 of the first dust removing member 121 and the ash removing rod 123 of the second dust removing member 122 are overlapped, the dust removing brush 124 of the first dust removing member 121 and the dust removing brush 124 of the second dust removing member 122 are not overlapped.
Moreover, since the number of the dust removing members 120 is two, correspondingly, the number of the first limiting notches 142 on the first fixing member 141 is also two, and one ends of the first dust removing member 121 and the second dust removing member 122 are respectively rotatably disposed in the two first limiting notches 142. Similarly, the number of the second limiting notches 144 on the second fixing member 143 is also two, and the other ends of the first dust removing part 121 and the second dust removing part 122 are respectively rotatably disposed in the two second limiting notches 144. Meanwhile, the number of the transmission gears is also two, the two transmission gears are respectively a first transmission gear 153 and a second transmission gear 154, the first transmission gear 153 is fixedly connected to the ash removal rod 123 of the first dust removal part 121, the second transmission gear 154 is fixedly connected to the ash removal rod 123 of the second dust removal part 122, and the first transmission gear 153 and the second transmission gear 154 are both meshed with the driving gear 152, so that the first transmission gear 153 and the second transmission gear 154 can be driven to synchronously operate through the same driving part 151, and the first dust removal part 121 and the second dust removal part 122 are driven to synchronously operate.
Fig. 7 is a schematic cross-sectional view of a heat dissipation structure 130 of the dustproof heat dissipation device 100 according to this embodiment. Referring to fig. 2 to fig. 7, in the present embodiment, the heat dissipation structure 130 includes a plurality of heat dissipation fins 131 sequentially disposed at intervals. The dust removing brush 124 includes a plurality of bristles 125 distributed along the arrangement direction of the plurality of heat dissipating fins 131, and in a case where the dust removing brush 124 is located in the heat dissipating structure 130, the bristles 125 are located between two adjacent heat dissipating fins 131. Specifically, a plurality of heat dissipation fins 131 are sequentially arranged at intervals in the left-right direction shown in fig. 7, and a channel through which air flows is formed between two adjacent heat dissipation fins 131. The axial line of the ash removal rod 123 in the dust removing member 120 extends along the left-right direction shown in fig. 7, so that a row of bristles 125 sequentially arranged along the axial direction of the ash removal rod 123 can be regarded as being distributed along the arrangement direction of the plurality of heat dissipation fins 131, when the dust removing brush 124 is located in the heat dissipation structure 130, the bristles 125 are located between two adjacent heat dissipation fins 131, and meanwhile, in order to ensure effective ash removal on the heat dissipation structure 130, the bristles 125 are arranged between two adjacent heat dissipation fins 131, that is, each heat dissipation fin 131 and the corresponding bristles 125 perform ash removal operation.
Further, the heat dissipating fin 131 includes a first fin portion 132 and a second fin portion 133 connected to each other, the first fin portion 132 has a larger height (i.e., a size in a vertical direction in fig. 3) than the second fin portion 133, the first fin portion 132 is located on a side of the second fin portion 133 close to the fan 110, and the dust removing brush 124 of the dust removing member 120 acts on the first fin portion 132. The heat dissipation structure 130 further includes a heat pipe 134, one end of the heat pipe 134 penetrates through the second fin portion 133, and the other end of the heat pipe 134 extends out of the heat dissipation fin 131, so that heat in the housing 200 is conducted to a heat dissipation position through the heat pipe 134, thereby improving the heat dissipation effect.
According to the dustproof heat dissipation apparatus 100 provided in this embodiment, the working principle of the dustproof heat dissipation apparatus 100 is as follows:
when the dust removing device is used, the driving member 151 rotates in the forward direction to rotate the driving gear 152 so as to drive the first transmission gear 153 and the second transmission gear 154 to rotate, the first dust removing member 121 and the second dust removing member 122 synchronously rotate with the first transmission gear 153 and the second transmission gear 154 respectively, so that the first dust removing member 121 and the second dust removing member 122 are switched from the initial state to the intermediate state, when the first dust removing member 121 and the second dust removing member 122 rotate to the position of the intermediate state, the driving member 151 rotates in the reverse direction, so that the first dust removing member 121 and the second dust removing member 122 are switched from the intermediate device to the initial state, until the first dust removing member 121 and the second dust removing member 122 rotate to the position of the initial state, the driving member 151 rotates in the forward direction, and the circular motion is realized to alternately remove impurities on the heat dissipation fins 131 by the first dust removing member 121 and the second dust removing member 122. Meanwhile, when the first dust removing member 121 and the second dust removing member 122 rotate, the fan 110 operates at a full rotation speed, so that the air flow has a sufficient wind speed to discharge the impurities carried by the air flow, thus achieving automatic dust removal.
The dustproof heat dissipation apparatus 100 provided in this embodiment has at least the following advantages:
the dustproof heat dissipation device 100 provided by the embodiment of the invention removes the impurities attached to the heat dissipation structure 130 by arranging the dust removal part 120, and the removed impurities are discharged along with the airflow under the action of the fan 110, so that the automatic cleaning of the impurities such as dust, fibers and hair on the heat dissipation fins 131 is realized, and the cleaning effect is good. Meanwhile, due to the arrangement of the dustproof heat dissipation device 100, a dustproof net does not need to be arranged at the air inlet of the shell 200, so that the holes of the whole machine are not affected, and the appearance of the whole machine is more attractive.
The embodiment also provides an electronic device 10, and the electronic device 10 includes the above-mentioned dustproof heat dissipation apparatus 100. The heat dissipation structure 130 of the dustproof heat dissipation device 100 is disposed at the air outlet 210 of the housing 200, and the fan 110 of the dustproof heat dissipation device 100 is disposed in the housing 200. Since the electronic device 10 includes the dustproof heat sink 100, the dustproof heat sink 100 has all the advantages of the dustproof heat sink 100.
Fig. 8 is a step diagram of the dustproof control method according to this embodiment. Referring to fig. 1 to 8, the present embodiment also provides a dust-proof control method for controlling the electronic device 10. The dustproof control method comprises the following steps:
s01: and acquiring a starting-up instruction.
SO 2: the fan 110 is controlled to operate at a first preset rotation speed, and the dust removing member 120 is controlled to operate for a preset working period and then stop.
After the electronic device 10 is turned on, that is, after a power-on command is obtained, the dustproof heat dissipation device 100 is controlled to automatically operate to perform a dust removal operation, specifically, the fan 110 is controlled to operate at a first preset rotation speed, where the first preset rotation speed is a full rotation speed of the fan 110, so as to ensure that an airflow generated by the fan 110 has a sufficient flow rate. When the fan 110 operates at the first preset rotation speed, the operation of the dust removing part 120 is controlled to be stopped after a preset working period, specifically, the operation of the driving part 151 is controlled to be fixed PPS, so that the dust removing part 120 rotates from the initial position to the intermediate position, then the driving part 151 is controlled to rotate reversely, the dust removing part 120 is further driven to return to the initial position from the intermediate position, and the above process is repeated once, so that the dust removing part 120 completes the preset working period. It will be appreciated that in other embodiments, the preset duty cycle may be set according to requirements, for example, the preset duty cycle may be set to repeat the process of the three reciprocating cleaning movements.
S03: the fan 110 is controlled to operate at a second preset rotation speed.
The second preset rotation speed is lower than the first preset rotation speed, and in this embodiment, the second preset rotation speed is a normal rotation speed of the fan 110. When the dust removing part 120 stops operating, that is, the dust removing part 120 stops removing the impurities on the heat dissipation structure 130, the impurities on the heat dissipation structure 130 are almost discharged along with the airflow generated by the fan 110, and the fan 110 is decelerated to a normal rotation speed to operate, so that the air in the housing 200 can be driven to flow, and the heat dissipation requirement in the housing 200 can be met.
Fig. 9 is a step diagram of another dustproof control method provided in this embodiment. Referring to fig. 1 to 9, in this embodiment, the dust-proof control method may further include:
SO 4: obtaining a dust removal instruction
After the dust removal operation is automatically performed by the dust-proof heat dissipation apparatus 100, i.e., after the steps S01, S02, and S03 are completed, a dust removal command can be issued to the electronic device 10 according to the requirement. In the case where the dust-removal instruction is acquired, the dust-proof heat sink 100 is controlled to perform the steps S02 and S03 again to perform the dust-removal operation.
Specifically, during operation of the electronic device 10, a dust removal instruction may be sent to the electronic device 10 through a remote controller communicating with the electronic device 10 or an APP in a terminal or the like.
Fig. 10 is a step diagram of another dustproof control method provided in this embodiment. It can be understood that the dustproof heat sink 100 can also be controlled to operate according to the operation time of the electronic device 10. Specifically, the dust control method includes:
and S11, acquiring a starting instruction.
S12: the operating time of the electronic device 10 is obtained.
The operation duration of the electronic device 10 is the internal timing operation duration of the electronic device 10, and the timing starting point may be the dust removal ending time of the last dust-proof heat dissipation device 100.
And S13, judging whether the running time length reaches the preset time length.
And S14, controlling the fan 110 to operate at a first preset rotation speed, and controlling the dust removing part 120 to operate for a preset work period and then stop.
S15: the fan 110 is controlled to operate at a second preset rotation speed.
When the acquired operation time length of the electronic device 10 reaches the preset time length, step S14 is executed, and after the execution of step S14 is completed and the operation of the dust-removing member 120 is stopped, step S15 is executed. In the present embodiment, the preset time period is 6 hours, that is, the electronic device 10 performs the automatic dust removal operation every 6 hours of operation. The first preset rotation speed is the full rotation speed of the fan 110, so that the dust removing member 120 has a sufficient wind speed to discharge the removed foreign substances. The second preset rotation speed is less than the first preset rotation speed, and the second preset rotation speed is a normal rotation speed of the fan 110, that is, a rotation speed at which the operation of the fan 110 can meet the heat dissipation requirement when the electronic device 10 normally operates.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (14)

1. A dust-proof heat sink for dissipating heat from the interior of a housing (200), said housing (200) having an air outlet (210), said dust-proof heat sink (100) comprising:
the heat dissipation structure (130), the heat dissipation structure (130) is installed at the air outlet (210);
a dust removing member (120), the dust removing member (120) being used for removing impurities attached to the heat dissipation structure (130); and
the fan (110) is used for generating air flow passing through the heat dissipation structure (130) so that the air flow carries the impurities to be discharged from the air outlet (210).
2. The dustproof heat sink according to claim 1, wherein the dust removing member (120) is located between the heat dissipating structure (130) and the fan (110).
3. The dustproof heat dissipation device of claim 1, wherein the dust removing member (120) comprises an ash removing rod (123) and a dust removing brush (124) connected to the ash removing rod (123), the ash removing rod (123) can rotate relative to the heat dissipation structure (130), and impurities on the heat dissipation structure (130) are removed when the dust removing brush (124) rotates relative to the heat dissipation structure (130).
4. The dustproof heat dissipation device according to claim 3, wherein the dedusting member (120) is switched between an initial state and an intermediate state when the ash removal rod (123) is rotated;
when the dust removing piece (120) is in the initial state, the dust removing brush (124) is positioned in the heat dissipation structure (130), and when the dust removing piece (120) is in the intermediate state, the dust removing brush (124) is positioned outside the heat dissipation structure (130); alternatively, the first and second electrodes may be,
when the dust removing piece (120) is in the initial state, the dust removing brush (124) is positioned outside the heat dissipation structure (130), and when the dust removing piece (120) is in the intermediate state, the dust removing brush (124) is positioned inside the heat dissipation structure (130).
5. The dustproof heat dissipation device according to claim 4, wherein the dust removing member (120) comprises a first dust removing member (121) and a second dust removing member (122), and the first dust removing member (121) and the second dust removing member (122) are oppositely arranged on two sides of the heat dissipation structure (130).
6. The dustproof heat dissipation device according to claim 5, wherein the dust removing brush (124) of the first dust removing member (121) and the dust removing brush (124) of the second dust removing member (122) are arranged in a staggered manner, and when the dust removing brush (124) of the first dust removing member (121) is located in the heat dissipation structure (130), the dust removing brush (124) of the second dust removing member (122) is located outside the heat dissipation structure (130).
7. The dustproof heat sink according to claim 3, wherein the heat sink structure (130) comprises a plurality of heat dissipating fins (131) arranged at intervals in sequence, the dust removing brush (124) comprises a plurality of bristles (125) distributed along the arrangement direction of the plurality of heat dissipating fins (131), and the bristles (125) are arranged between two adjacent heat dissipating fins (131) when the dust removing brush (124) is located in the heat sink structure (130).
8. The dustproof heat sink according to any one of claims 1 to 7, wherein the dustproof heat sink (100) further comprises a driving member (151), a driving gear (152) and a transmission gear, the driving member (151) is in transmission connection with the driving gear (152), the driving gear (152) is meshed with the transmission gear, and the transmission gear is connected to the dust removing member (120) to drive the dust removing member (120) to rotate.
9. The dustproof heat dissipation device according to claim 8, wherein the dustproof heat dissipation device (100) further comprises a first fixing member (141) and a second fixing member (143), and the first fixing member (141) and the second fixing member (143) are respectively fixedly connected to two sides of the heat dissipation structure (130); two ends of the dust removing part (120) are respectively and rotatably connected to the first fixing part (141) and the second fixing part (143).
10. The dustproof heat dissipation device according to claim 9, wherein one end of the dust removal member (120) is fixedly connected to the transmission gear, a limiting boss (126) is disposed at the other end of the dust removal member (120), and the limiting boss (126) is used for abutting against a wall surface of the first fixing member (141) on a side far away from the second fixing member (143).
11. An electronic device, characterized in that the electronic device (10) comprises a housing (200) and the dust-proof heat sink (100) according to any one of claims 1-10, and the heat dissipation structure (130) of the dust-proof heat sink (100) is disposed at the air outlet (210) of the housing (200).
12. A dust control method for controlling the electronic device (10) of claim 11, the dust control method comprising:
under the condition that a starting instruction is obtained, the fan (110) is controlled to operate at a first preset rotating speed, and the dust removal part (120) is controlled to operate for a preset working period and then stop;
after the dust removing piece (120) stops operating, controlling the fan (110) to operate at a second preset rotating speed;
the first preset rotating speed is the full-rotating speed of the fan (110), and the first preset rotating speed is greater than the second preset rotating speed.
13. The dust control method according to claim 12, wherein after the step of controlling the fan (110) to operate at the second preset rotation speed, the dust control method further comprises:
under the condition that a dust removal instruction is obtained, controlling the fan (110) to operate at a first preset rotating speed, and controlling the dust removal piece (120) to operate for a preset working period and then stop; and after the dust removing piece (120) stops operating, controlling the fan (110) to operate at a second preset rotating speed.
14. A dust control method for controlling the electronic device (10) of claim 11, the dust control method comprising:
acquiring a starting instruction and the running time of the electronic equipment (10), if the running time reaches a preset time, controlling the fan (110) to run at a first preset rotating speed, and controlling the dust removal part (120) to run for a preset working period and then stop;
after the dust removing piece (120) stops operating, controlling the fan (110) to operate at a second preset rotating speed;
the first preset rotating speed is the full-rotating speed of the fan (110), and the first preset rotating speed is greater than the second preset rotating speed.
CN202110433358.3A 2021-04-22 2021-04-22 Dustproof heat dissipation device, electronic equipment and dustproof control method Active CN112987467B (en)

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