Electronic device

Abstract

The invention provides electronic equipment. The electronic equipment comprises a middle frame, a back shell, a cooling fan, a mounting base, a first dustproof net and a second dustproof net, the back shell and the middle frame are matched to form an accommodating space, and an air inlet window is formed corresponding to the accommodating space; the cooling fan is arranged in the accommodating space; the mounting base is arranged on the air inlet window, and an air inlet channel is arranged in the middle of the mounting base; the first dustproof net covers the air inlet channel; the second dustproof net is arranged on the side, away from the mounting base, of the first dustproof net, and the second dustproof net and the first dustproof net are fixedly connected with the mounting base through detachable structures. According to the electronic equipment provided by the embodiment of the invention, the two layers of protection nets are designed at the air inlet end, meanwhile, a detachable connection locking mode is adopted, the dust screen at the air inlet can be directly disassembled for dust removal without disassembling a rear cover or a case during fan cleaning, the waterproof reliability of the whole machine can be protected, and the dust removal efficiency can also be improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat dissipation of electronic equipment, and in particular to an electronic equipment with a heat dissipation fan structure. Background Art

[0002] For mobile phones or laptops with fans on the market, cleaning dust requires removing the battery cover or the back cover of the computer to fully expose the fan air inlet. Disassembly can easily cause secondary damage to the mobile phone or laptop and affect the sealing of the entire machine. During the cleaning process, dust can easily enter other components. Summary of the invention

[0003] An embodiment of the present application provides an electronic device, the electronic device comprising:

[0004] Middle frame;

[0005] A back shell cooperates with the middle frame to form a receiving space, and an air inlet window is provided corresponding to the receiving space;

[0006] A cooling fan is arranged in the accommodating space;

[0007] A mounting base is arranged on the air inlet window, and an air inlet passage is arranged in the middle of the mounting base;

[0008] A first dustproof screen, covering the air inlet passage;

[0009] The second dustproof net is arranged on a side of the first dustproof net away from the mounting base, and the second dustproof net and the first dustproof net are fixedly connected to the mounting base via a detachable structure.

[0010] The electronic device provided in the embodiment of the present application adopts a two-layer protective net design at the air inlet end, and adopts a detachable connection locking method. The fan does not need to be cleaned by removing the back cover or the chassis. The air inlet dust net can be directly disassembled for cleaning, which can not only protect the waterproof reliability of the whole machine but also improve the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a partial structural diagram of an embodiment of the electronic device of the present application;

[0013] Figure 2 yes Figure 1 A schematic diagram of a partially disassembled structure of an electronic device in an embodiment;

[0014] Figure 3 is Figure 1 Another partial split structure schematic diagram of the electronic device in the embodiment;

[0015] Figure 4 is Figure 1 Cross-sectional structure schematic diagram of the electronic device along A-A in the embodiment;

[0016] Figure 5 is Figure 1 Cross-sectional structure schematic diagram of the electronic device along B-B in the embodiment;

[0017] Figure 6 Another partial structure split schematic diagram of the electronic device of the present application;

[0018] Figure 7 Still another partial structure split schematic diagram of the electronic device of the present application;

[0019] Figure 8 Yet another partial structure split schematic diagram of the electronic device of the present application;

[0020] Figure 9 Schematic diagram of the structural composition block diagram of an embodiment of the electronic device of the present application. Detailed implementation manners

[0021] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be specifically noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only partial embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0022] The terms "first", "second", and "third" in the embodiments of the present application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "including" and "having" in the embodiments of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or components inherent to these processes, methods, products, or devices.

[0023] References herein to "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] As used herein, "electronic device" (or simply "terminal") includes, but is not limited to, devices configured to receive / transmit communication signals via wired connections (such as via the Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection, and / or another data connection / network) and / or via wireless interfaces (such as for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters, and / or another communication terminal). A communication terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communication System (PCS) terminals that may combine cellular radiotelephone with data processing, facsimile, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, notepads, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or palm receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device configured with a cellular communication module.

[0025] Please refer to Figures 1 to 3 , Figure 1 which is a schematic diagram of a partial structure of an embodiment of the electronic device of the present application, Figure 2 and Figure 1 is a schematic diagram of a partial disassembled structure of the electronic device in the embodiment. Figure 3 And Figure 1 is another schematic diagram of a partial disassembled structure of the electronic device in the embodiment. It should be noted that the electronic device in the present application may include electronic devices with a cooling fan such as mobile phones, tablet computers, laptop computers, wearable devices, etc. The electronic device includes but is not limited to the following structures: a middle frame 100, a back shell 200, a cooling fan 300, a mounting base 400, a first dust screen 500, and a second dust screen 600.

[0026] Specifically, please refer to Figure 4 , Figure 4 which is Figure 1 a schematic cross-sectional structure diagram of the electronic device along line A-A in the embodiment; wherein, the back shell 200 and the middle frame 100 cooperate to form a receiving space 1001, the back shell 200 is provided with an air inlet window 201 corresponding to the receiving space 1001, and the cooling fan 300 is arranged in the receiving space 1001; the mounting base 400 is arranged at the air inlet window 201, a middle part of the mounting base 400 is provided with an air inlet channel 401, the air inlet channel 401 corresponds to the air inlet window 201, and the first dust screen 500 covers the air inlet channel 401; the second dust screen 600 is arranged on a side of the first dust screen 500 away from the mounting base 400, and the second dust screen 600 and the first dust screen 500 are fixedly connected to the mounting base 400 through a detachable structure.

[0027] Optionally, the detachable connection structure between the second dust screen 600 and the first dust screen 500 and the mounting base 400 includes any one or a combination of a pin, a screw, and a buckle. Among them, in the illustration of this embodiment, it is a screw connection.

[0028] Optionally, the aperture of the first dust screen 500 in this embodiment is smaller than that of the second dust screen 600. Among them, the second dust screen 600 is located outside, and its main function is to prevent large objects from entering or protect against falling impact. The first dust screen 500 is located inside, and its main function is to prevent small particulate objects such as sand grains, iron filings, nails, dirt, or other foreign objects from entering the fan interior, and also prevent agglomerated objects or flocculent objects such as hair / cotton wool / fuzz balls from entering the fan interior. The material of the first dust screen 500 can be a metal mesh, a plastic mesh, or a cloth mesh, etc., and the material of the second dust screen 600 can be a metal or a plastic, etc.

[0029] Among them, connection holes (501, 601) are provided at the edge positions of the first dust-proof net 500 and the second dust-proof net 600. There can be multiple connection holes (501, 601) respectively. Threaded holes 402 (which can also be multiple) are provided on the mounting base 400. The second dust-proof net 600 and the first dust-proof net 500 are fixedly connected by screws 506 inserted into the connection holes (501, 601) and cooperating with the threaded holes 402 of the mounting base 400.

[0030] Optionally, the mounting base 400 in this embodiment is a flange structure. The flange plate 410 of the flange structure is fixedly connected to the side of the back shell 200 facing the middle frame 100. The threaded holes 402 are provided at the middle convex edge 420 of the flange structure. Optionally, positioning posts 403 can be provided on the mounting base 400. The positioning posts 403 can be provided at the middle convex edge 420 of the flange structure. Positioning holes (502, 602) are provided at the edge positions of the first dust-proof net 500 and the second dust-proof net 600. The positioning posts 403 cooperate with the positioning holes (502, 602) to achieve positioning.

[0031] Optionally, please continue to refer to Figure 3 and Figure 4 , the electronic device in this embodiment further includes a decorative sheet 700. The decorative sheet 700 is a ring structure and is provided on the side of the second dust-proof net 600 facing away from the first dust-proof net 500. The decorative sheet 700 covers structures such as the connection holes (501, 601) and the positioning holes (502, 602).

[0032] Among them, the decorative sheet 700 and the second dust-proof net 600 can be fixedly bonded by glue, specifically by hot-melt glue 706.

[0033] The fan cleaning process of the electronic device in this embodiment is as follows: 1. Heat and use tools to remove the decorative sheet 700; 2. Use tools to remove the screws; 3. Take out the external protection net (the second dust-proof net 600); 4. Take out the internal dust-proof net (the first dust-proof net 500), and the fan air inlet is completely exposed for cleaning; 5. Use conventional tools (cotton swabs, tweezers, hooks, brushes, air guns, etc.) for cleaning, clean the large foreign objects at the air inlet. For the oil stains or other attached dust inside the fan, liquid (alcohol, washing liquid, etc.) can be further dropped for cleaning. This solution is IPX8 waterproof and can be cleaned with water. The detailed waterproof structure will be introduced later; 6. Clean the air outlet in the same way as the air inlet, and the sundries are discharged uniformly from the air inlet to the air outlet.

[0034] The electronic device in the embodiment of the present application has the following characteristics:

[0035] 1. The cleaning efficiency is improved. The air inlet protection net can be simply and quickly removed to complete dust cleaning, enhancing the user experience and reducing the concern about dust cleaning;

[0036] 2. There is no need to disassemble the battery cover or the back cover, maintaining the integrity of the whole machine and ensuring the waterproof consistency of the whole machine at the IPX8 level;

[0037] 3. Disassembling the battery cover or the chassis will cause other components to lose protection. During the dust cleaning process, dust enters other components and causes secondary damage. This solution effectively solves this problem, forms an independent module, and disassembles other components during the disassembly process and the dust cleaning process.

[0038] For the electronic device provided in the embodiment of the present application, two layers of protective nets are designed at the air inlet end, and at the same time, a detachable connection locking method is adopted. The fan cleaning does not require disassembling the back cover or the chassis, and the dust-proof net at the air inlet can be directly disassembled for dust cleaning, which can not only protect the waterproof reliability of the whole machine but also improve the dust cleaning efficiency.

[0039] Please continue to refer to Figure 1 and Figure 2 , the electronic device in this embodiment further includes a decorative cover 710 and a light strip 720. The decorative cover 710 covers the outer periphery of the second dust-proof net 600. The decorative cover 710 is provided with an avoidance hole 711 corresponding to the position of the air inlet channel 401, and the decorative piece 700 leaks out from the avoidance hole 711. The light strip 720 is arranged in the decorative cover 710 and surrounds the air inlet channel 401. The side of the decorative cover 710 is provided with an opening or a transparent area to transmit the light emitted by the light strip 720. The light strip 720 is connected to a control circuit 721. In the figure, the label 770 represents a light strip fixing member.

[0040] In the conventional technical solution, the fan is directly connected to the whole machine system, or the fan module monomer does not form an independent BOX. The dust inside the fan module will be introduced into the whole machine system. In addition, the protection ability for the fan monomer can generally only reach IP2X.

[0041] To solve the above problems, the electronic device in the embodiment of the present application can achieve the waterproof level of IPX8 through a series of waterproof and dust-proof designs.

[0042] Please refer to Figure 1 and Figure 5 , Figure 5 is Figure 1 the schematic cross-sectional structure diagram of the electronic device along B-B in the embodiment; in this embodiment, the blades 310 of the cooling fan 300 are plated with a hydrophobic layer, which can prevent the blades 310 from being corroded on the one hand and prevent the accumulation of moisture and dust on the other hand. The rotor bearing 320 of the cooling fan 300 is coated with hydrophobic bearing oil, which can prevent moisture from invading the outside of the fan (into the electronic device system) from this position.

[0043] Please refer to Figures 6 to 8 , Figure 6 is another partial structure disassembly schematic diagram of the electronic device of the present application,Figure 7 It is still another partial structural decomposition diagram of the electronic device of the present application, Figure 8 and it is yet another partial structural decomposition diagram of the electronic device of the present application; wherein, Figure 6 the label 730 in it represents the display module. The cooling fan 300 in this embodiment includes a bottom case 330, a circuit board 340, and a top bracket 350. The top bracket 350 is cooperatively connected with the bottom case 330 to form a sealed space 3000. The circuit board 340, the stator coil 360, the rotor 370, etc. are all arranged in the sealed space 3000. The surface of the copper wire of the stator coil 360 is coated with waterproof paint 361. A sealing ring 740 is provided between the top bracket 350 and the mounting base 400. The two sides of the sealing ring 740 respectively abut against the top bracket 350 and the mounting base 400 to achieve waterproofing between the two.

[0044] Optionally, some components of the circuit board 340 are exposed from the bottom case 330. Among them, a sealing glue 304 is provided between the components of the circuit board 340 exposed from the bottom case 330 and the bottom case 330.

[0045] Optionally, the cooling fan 300 in this embodiment further includes a connection terminal 380. The connection terminal 380 is an integrally injection-molded structure with the bottom case 330. One end of the connection terminal 380 is connected to the circuit board 340, and the other end is exposed from the bottom case 330 for connection with the main control board (not shown in the figure) of the electronic device. The fan module housing is made into insert molding to lead out the gold finger (connection terminal 380) to the outside, and the fan module is made into an independent BOX.

[0046] Among them, an air outlet 101 is provided on the side of the middle frame 100. A heat dissipation fin 750 is provided between the air outlet 101 and the accommodation space 1001 for accommodating the fan. The heat dissipation fin 750 is connected to the heat source (such as a processor chip or a heat pipe, a vapor chamber, etc.) of the electronic device.

[0047] Optionally, the material of the bottom case 330 in this embodiment can be plastic. The bottom case 330 is provided with an integrally injection-molded copper sheet 331. One side of the copper sheet 331 is connected to the heat dissipation fin 750, and the other side is connected to the heat source of the electronic device. A sealing glue 332 is provided around the injection-molded connection of the copper sheet 331 and the bottom case 330. Because during the injection molding process, there may be gaps at the connection positions around the copper sheet 331 and the bottom case 330. By adding a circle of sealing glue 332, the reliability of the seal can be ensured.

[0048] Please continue to refer to Figure 5 and Figure 7, inside the air outlet 101 of the middle frame 100, a silicone sealing sleeve 760 is provided to prevent water vapor, dust, etc. from entering the interior of the electronic device. The fan module is made into an independent BOX, and the air inlet and outlet are sealed with silicone sleeves (740, 760) respectively to prevent dust or foreign objects from entering the whole machine system.

[0049] The electronic device in the embodiment of the present application has at least three levels of protection. The first level of protection: the metal deco (the second dust screen 600) prevents large objects from entering and prevents external impact on the fan system; the second level of protection: the metal dust screen (the first dust screen 500) prevents small particles, hair, steel wires or flocculent objects from entering the fan; the third level of protection: the fan blades are coated with hydrophobic film to reduce the adhesion or accumulation of small particles, liquid and dust.

[0050] Through a series of waterproof and dustproof designs, the electronic device in the embodiment of the present application can achieve an IPX8 level of waterproof protection.

[0051] Please refer to Figure 9 , Figure 9 is a schematic block diagram of the structural composition of an embodiment of the electronic device of the present application. The structure of the electronic device may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (which may be the display screen module 730 in the above embodiment), a sensor 950, an audio circuit 960, a camera 970, a processor 980, and a power supply 990, etc. Among them, the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the camera 970 are respectively connected to the processor 980; the power supply 990 is used to provide electrical energy for the entire electronic device.

[0052] Specifically, the RF circuit 910 is used for receiving and transmitting signals; the memory 920 is used for storing data instruction information; the input unit 930 is used for inputting information, which may specifically include a touch panel 931 and other input devices 932 such as operation buttons; the display unit 940 may include a display panel 941, etc.; the sensor 950 includes an infrared sensor, a laser sensor, etc., which are used for detecting user proximity signals, distance signals, etc.; the speaker 961 and the microphone (or microphone) 962 are connected to the processor 980 through the audio circuit 960 and are used for receiving and transmitting sound signals; the camera 970 is used for image acquisition (including taking pictures, videos, and implementing functions such as face recognition), and the processor 980 is used for processing the data information of the electronic device. In addition, the electronic device may further include a wifi module (not marked in the figure), and the wifi module is used for receiving and transmitting wifi signals. For the specific structural features of the camera module of the electronic device, please refer to the relevant descriptions in the foregoing embodiments and will not be introduced in detail here.

[0053] The electronic device provided by the embodiment of the present application has the characteristics of high waterproof and dustproof levels and easy cleaning of the cooling fan.

[0054] The above are only partial embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. An electronic device, characterized in that, The electronic device comprises: Middle frame; A back shell cooperates with the middle frame to form a receiving space, and an air inlet window is provided corresponding to the receiving space; A cooling fan is arranged in the accommodating space; A mounting base is arranged on the air inlet window, and an air inlet passage is arranged in the middle of the mounting base; A first dustproof screen, covering the air inlet passage; The second dustproof net is arranged on a side of the first dustproof net away from the mounting base, and the second dustproof net and the first dustproof net are fixedly connected to the mounting base via a detachable structure.

2. The electronic device according to claim 1, wherein The opening of the first dustproof net is smaller than the opening of the second dustproof net.

3. The electronic device according to claim 2, wherein The detachable connection structure between the second dustproof net, the first dustproof net and the mounting base includes any one or a combination of multiple of pins, screws and buckles.

4. The electronic device according to claim 2, wherein The edges of the first dustproof net and the second dustproof net are both provided with connecting holes, the mounting base is provided with threaded holes, and the second dustproof net and the first dustproof net are fixedly connected to the mounting base by screws inserted into the connecting holes.

5. The electronic device according to claim 4, wherein The mounting base is provided with a positioning column, and the edges of the first dustproof net and the second dustproof net are both provided with positioning holes, and the positioning column cooperates with the positioning holes to achieve positioning.

6. The electronic device according to claim 4, wherein The mounting base is a flange structure, a flange sheet of the flange structure is fixedly connected to a side of the back shell facing the middle frame, and the threaded hole is arranged on a raised edge in the middle of the flange structure.

7. The electronic device according to claim 6, characterized in that The electronic device further comprises a decorative sheet, which is an annular structure and is arranged on a side of the second dustproof net away from the first dustproof net, and the decorative sheet covers the connecting hole.

8. The electronic device according to claim 7, wherein The decorative sheet and the second dustproof net are bonded and fixed by glue.

9. The electronic device according to claim 8, wherein The decorative sheet and the second dustproof net are bonded and fixed by hot melt glue.

10. The electronic device according to claim 7, characterized in that, The electronic device also includes a decorative cover and a light strip. The decorative cover is arranged on the outer periphery of the second dustproof net. The decorative cover is provided with a avoidance hole at a position corresponding to the air inlet channel. The decorative sheet leaks out from the avoidance hole. The light strip is arranged in the decorative cover and around the air inlet channel. The side of the decorative cover is provided with an opening or a transparent area to allow light emitted by the light strip to pass through.

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