A notebook computer and its heat dissipation structure

Abstract

The present invention relates to the technical field of heat dissipation of mobile terminals, and discloses a laptop computer and a heat dissipation structure thereof, wherein the heat dissipation structure comprises a heat dissipation fan, a fan housing of which is provided with a plurality of driving members, driving ends of the plurality of driving members being commonly connected to a protective leakage cover, the protective leakage cover being provided with a plurality of air inlet through holes, the protective leakage cover being fixedly connected to a central through hole of an elastic ring, and the plurality of driving members being used for driving the protective leakage cover to move in a direction away from the heat dissipation fan to reduce the air inlet pressure of the heat dissipation fan; the present invention enables the protective leakage cover connected to the elastic ring through the driving member to move in the thickness direction of the laptop computer, so that the protective leakage cover is away from the heat dissipation fan, and the air inlet pressure of the heat dissipation fan is reduced by increasing the gap on the air inlet side of the heat dissipation fan, thereby increasing the air volume entering into the main casing of the laptop computer, thereby achieving a more efficient heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile terminal heat dissipation, and in particular to a notebook computer and a heat dissipation structure thereof. Background Art

[0002] The heat dissipation structure of a laptop computer generally adopts a "heat sink + fan" structure, which is specifically implemented as follows: the heat sink is placed at the air outlet of the cooling fan, and the fan forced convection is used to dissipate the heat inside the laptop computer, thereby achieving the purpose of cooling; therefore, the air volume of the cooling fan plays a vital role in the heat dissipation of the laptop.

[0003] Factors that affect the air volume of the cooling fan include the size of the fan and the air pressure of the fan. As laptop computers become thinner and lighter, replacing a fan with a larger size goes against the trend of thinner and lighter laptop computers, so replacing a fan with a larger size is undoubtedly undesirable. The air pressure of the fan is limited by the thickness of the laptop computer, because the thinner the laptop computer is, the greater the air inlet pressure of the fan and the smaller the air volume. Therefore, for laptop computers, especially thin and light ones, how to effectively increase the air volume of the fan has always been a technical problem in this field. Summary of the invention

[0004] The embodiments of the present invention provide a notebook computer and a heat dissipation structure thereof to solve or at least partially solve the technical problems raised in the background technology.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In a first aspect, an embodiment of the present invention provides a heat dissipation structure of a laptop computer, comprising a heat dissipation fan for installation in a main casing of the laptop computer, a plurality of driving members being installed on a fan casing of the heat dissipation fan, a protective leakage cover being commonly connected to the driving ends of the plurality of driving members, and a plurality of air inlet holes being opened on the protective leakage cover;

[0007] It also includes an elastic ring for installation at the air inlet of the main housing, and the protective leak cover is fixedly connected to the central through hole of the elastic ring;

[0008] The plurality of driving members are used to drive the protective drain cover to move in a direction away from the cooling fan to reduce the air inlet pressure of the cooling fan.

[0009] Optionally, the air inlet is provided on the bottom surface of the main housing, and an air outlet is provided on the side surface of the main housing; the air suction port of the cooling fan is arranged facing the air inlet, and the air supply port of the cooling fan is arranged facing the air outlet;

[0010] The heat dissipation structure also includes a heat dissipation plate for installation in the main housing, and the heat dissipation plate is provided with heat dissipation fins between the air supply port and the air outlet.

[0011] Optionally, an air inlet adjustment portion is protruded on two opposite side walls of the fan housing, and one driving member is installed on each of the air inlet adjustment portions, and the driving ends of the two driving members are fixedly connected to the edges of the top surface of the protective drain cover respectively;

[0012] When the driving ends of the two driving members are both in the initial position, the bottom surface of the protective leakage cover is flush with the bottom surface of the elastic ring.

[0013] Optionally, the opening edge of one end of the air inlet away from the heat dissipation fan is concavely formed with a stepped groove for fixing and installing the elastic ring; a surface of one side of the elastic ring away from the heat dissipation fan is provided with a plurality of pressure relief holes at intervals; the pressure relief holes are blocked or partially blocked by the stepped groove;

[0014] When the protective leak cover is driven to move in a direction away from the heat dissipation fan, the elastic ring is deformed accordingly, and the pressure relief through hole is opened or the air intake of the pressure relief through hole is increased.

[0015] Optionally, a plurality of fixing mounting portions for fixedly connecting with the main housing are protruded from the side wall of the fan housing.

[0016] In a second aspect, an embodiment of the present invention further provides a laptop computer, comprising a main casing, wherein the main casing is installed with the heat dissipation structure of the laptop computer as described above.

[0017] Optionally, a side surface of the main housing is provided with a mounting groove, and a side edge of the display is rotatably mounted in the mounting groove;

[0018] The main housing is provided with a plurality of air ducts for heat dissipation, the air ducts comprising an air outlet opened at the bottom of the mounting groove and an air inlet opened at the bottom surface of the main housing, and the heat dissipation fan for guiding the wind direction is respectively arranged in each of the air ducts in the main housing;

[0019] A heat sink is also provided in the main housing, and heat sink fins are respectively provided in each of the air ducts on the heat sink.

[0020] Optionally, a plurality of parallel heat dissipation channels are formed on the heat dissipation fins, and an end of the heat dissipation channel away from the heat dissipation fan is arranged opposite to the air outlet.

[0021] Optionally, a fixed housing is provided in the main housing, and a plurality of fixed mounting portions protruding on two opposite side walls of the fan housing are fixedly connected to the fixed housing;

[0022] The air inlet is a through hole, and an opening edge of one end of the air inlet away from the heat dissipation fan is concavely formed with a stepped groove for fixing and installing the elastic ring; a plurality of pressure relief through holes are spaced apart on the bottom surface of the elastic ring;

[0023] When the driving ends of the two driving members are both in the initial position, the bottom surface of the elastic ring is flush with the bottom surface of the main housing, and the decompression through hole is blocked or partially blocked by the stepped groove;

[0024] When the protective leak cover is driven to move in a direction away from the heat dissipation fan, the elastic ring is deformed accordingly, and the pressure relief through hole is opened or the air intake of the pressure relief through hole is increased.

[0025] Optionally, a plurality of foot pads are also installed on the bottom surface of the main housing;

[0026] The protective leak cover can be driven to move to a preset limit position in a direction away from the cooling fan; when the protective leak cover is driven to move to the limit position, the air inlet pressure of the cooling fan is minimum;

[0027] Wherein, the distance between the protective leak cover at the extreme position and the bottom surface of the main housing is smaller than the height of the foot pad.

[0028] Beneficial effects of the present invention:

[0029] Since the elastic ring is elastic and can be deformed under force, the protective leak cover connected to the elastic ring can be moved in the thickness direction of the laptop computer through the driving member, so that the protective leak cover is kept away from the cooling fan, and the air inlet pressure of the cooling fan is reduced by increasing the gap on the air inlet side of the cooling fan, which can increase the air volume entering the main casing of the laptop computer, thereby achieving a more efficient cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 The present invention is a three-dimensional structural diagram of a notebook computer provided by an embodiment of the present invention.

[0032] Figure 2 The invention is a schematic structural diagram of a heat dissipation fan of a heat dissipation structure of a notebook computer provided by an embodiment of the present invention.

[0033] Figure 3It is a schematic diagram of the connection structure between the heat dissipation fan and the protective leakage cover provided in an embodiment of the present invention.

[0034] Figure 4 The diagram is a bottom view of the structure of a notebook computer provided by an embodiment of the present invention.

[0035] Figure 5 yes Figure 4 AA section view.

[0036] Figure 6 The invention is a schematic structural diagram of a heat dissipation structure of a notebook computer provided by an embodiment of the present invention.

[0037] Figure 7 yes Figure 6 Enlarged structural diagram of point B in the middle.

[0038] Reference numerals:

[0039] 10. Main housing; 100. Foot pad; 101. Air outlet; 11. Fixed housing; 111. Fixed plate;

[0040] 20. Display screen; 21. Installation groove;

[0041] 30. heat dissipation assembly; 31. elastic ring; 311. pressure relief hole; 32. protective leak cover; 321. air inlet hole; 33. heat dissipation plate; 331. heat dissipation fins; 3311. heat dissipation channel; 34. heat dissipation fan; 3401. air supply port; 3402. air intake port; 341. fan housing; 342. air inlet adjustment unit; 343. fixed installation unit;

[0042] 40. Driving parts. DETAILED DESCRIPTION

[0043] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0045] Please refer to Figure 1 , Figure 1 The present invention is a three-dimensional structural diagram of a notebook computer provided by an embodiment of the present invention.

[0046] The laptop computer comprises a main housing 10, and a heat dissipation assembly 30 is installed on the main housing 10; wherein the heat dissipation assembly 30 comprises a heat dissipation plate 33 and a heat dissipation fan 34;

[0047] Specifically, Figure 1 As shown, a mounting groove 21 is provided on one side of the main housing 10, and a side edge of the display 20 is rotatably mounted in the mounting groove 21; illustratively, the display 20 can be rotatably connected to the groove walls on both sides of the mounting groove 21 through connecting members such as a connecting shaft, and this part of the structure belongs to conventional technical means in the field, so it will not be repeated here;

[0048] The main housing 10 has a plurality of air ducts for heat dissipation, the air ducts including an air outlet 101 opened at the bottom of the mounting groove 21 and an air inlet opened at the bottom surface of the main housing 10 . A heat dissipation fan 34 for guiding the wind direction is respectively arranged in each air duct in the main housing 10 .

[0049] Please refer to Figure 2 and Figure 3 , Figure 2 1 is a schematic structural diagram of a heat dissipation fan 34 of a heat dissipation structure of a notebook computer provided by an embodiment of the present invention. Figure 3 It is a schematic diagram of the connection structure between the heat dissipation fan and the protective leakage cover provided in an embodiment of the present invention;

[0050] Specifically, the heat dissipation fan 34 includes a fan housing 341 and a fan body installed in the fan housing 341;

[0051] A plurality of driving members 40 are mounted on the fan housing 341, and the driving ends of the plurality of driving members 40 are commonly connected to a protective leakage cover 32, and a plurality of air inlet holes 321 are formed on the protective leakage cover 32;

[0052] An elastic ring 31 is installed at the air inlet of the main housing 10, and a protective leak cover 32 is fixedly connected to the central through hole of the elastic ring 31;

[0053] A plurality of driving members 40 are used to drive the protective leak cover 32 to move away from the cooling fan 34 to reduce the air inlet pressure of the cooling fan 34;

[0054] As a preferred implementation, when the driving ends of the plurality of driving members 40 are at the initial position, the bottom surface of the protective leakage cover 32 is flush with the bottom surface of the elastic ring 31 .

[0055] For example, Figure 2 As shown, an air inlet adjustment portion 342 is protruded on the two opposite side walls of the fan housing 341, and a driving member 40 is installed on each air inlet adjustment portion 342. The driving ends of the two driving members 40 are fixedly connected to the edges of the top surface of the protective drain cover 32 respectively;

[0056] It is understandable that the number of driving members 40 can be adjusted according to actual needs. In addition to the embodiment of two driving members 40 listed in this embodiment, one driving member 40 plus a guide member, or more driving members 40, can also realize the function of driving the protective leak cover 32.

[0057] It should be noted that, since the elastic ring 31 is elastic, it can be deformed under force. Therefore, when the protective drain cover 32 connected to the elastic ring 31 is driven by the driving member 40 to move in the thickness direction of the laptop computer, the portion where the elastic ring 31 is connected to the protective drain cover 32 moves away from the laptop computer and deforms as the protective drain cover 32 moves, which is equivalent to increasing the distance between the main casing 10 (or the protective drain cover 32) and the cooling fan 34, thereby reducing the air intake pressure of the cooling fan 34.

[0058] Please refer to Figure 4 and Figure 5 , Figure 4 is a bottom view of a notebook computer provided by an embodiment of the present invention, Figure 5 yes Figure 4 AA section view;

[0059] Specifically, the air inlet is provided on the bottom surface of the main housing 10, and the air outlet 101 is provided on the side surface of the main housing 10; the air inlet 3402 of the cooling fan 34 is arranged facing the air inlet, and the air outlet 3401 of the cooling fan 34 is arranged facing the air outlet 101;

[0060] Please continue to refer to Figure 6 and Figure 7 , Figure 6 is a schematic structural diagram of a heat dissipation structure of a notebook computer provided by an embodiment of the present invention, Figure 7 yes Figure 6 The enlarged structure diagram at B in the middle;

[0061] The heat dissipation assembly 30 includes a heat dissipation plate 33 and a heat dissipation fan 34;

[0062] A heat sink 33 is also disposed in the main housing 10, and heat sink fins 331 are respectively disposed in each air duct on the heat sink 33; the heat sink fins 331 are located between the air supply port 3401 and the air outlet 101;

[0063] More specifically, Figure 7 As shown, a plurality of parallel heat dissipation channels 3311 are formed on the heat dissipation fins 331 , and one end of the heat dissipation channel 3311 away from the heat dissipation fan 34 is arranged directly facing the air outlet 101 .

[0064] It is understandable that the heat sink 33 is generally a metal plate, which is used to conduct heat away from various high heat sources of the laptop computer, and the heat directed to the heat sink fins 331 is blown toward the heat sink fins 331 by the heat sink fan 34 and carried out of the laptop computer through the air outlet 101.

[0065] Please refer to Figure 2 and Figure 6 A fixed housing 11 is disposed in the main housing 10, and a plurality of fixed mounting portions 343 protruding on opposite side walls of the fan housing 341 are fixedly connected to the fixed housing 11;

[0066] More specifically, the air inlet is a through hole, and the opening edge of one end of the air inlet away from the heat dissipation fan 34 is concavely formed with a stepped groove for fixing and installing the elastic ring 31; the bottom surface of the elastic ring 31 is provided with a plurality of pressure relief through holes 311 at intervals;

[0067] When the driving end of the driving member 40 is in the initial position, the bottom surface of the elastic ring 31 is flush with the bottom surface of the main housing 10, and the pressure relief through hole 311 is blocked or partially blocked by the stepped groove;

[0068] When the protective leak cover 32 is driven to move in a direction away from the heat dissipation fan 34 , the elastic ring 31 is deformed accordingly, and the pressure relief through hole 311 is opened or the air intake of the pressure relief through hole 311 is increased.

[0069] The pressure reducing through hole 311 can further reduce the air inlet pressure of the heat dissipation fan, and can increase the air volume entering the main casing of the notebook computer, thereby achieving a more efficient heat dissipation effect.

[0070] Specifically, a plurality of foot pads 100 are installed on the bottom surface of the main housing 10;

[0071] The protective leak cover 32 can be driven to move to a preset limit position in a direction away from the cooling fan 34; when the protective leak cover 32 is driven to move to the limit position, the air inlet pressure of the cooling fan 34 is minimum;

[0072] The distance between the protective leak cover 32 in the extreme position and the bottom surface of the main housing 10 is smaller than the height of the foot pad 100;

[0073] In the present embodiment, illustratively, the driving member 40 adopts a motor; since the foot pad 100 raises the main housing 10, that is, there is a certain distance between the bottom surface of the main housing 10 and the desktop, by setting the maximum distance that the motor can drive (to be smaller than the above-mentioned "certain distance"), the protective leak cover is prevented from lifting the laptop computer during the use of the laptop computer. Therefore, the heat dissipation structure of the present embodiment effectively increases the heat dissipation efficiency of the heat dissipation assembly 30 without affecting the user experience.

[0074] A person of ordinary skill in the art will appreciate that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, which may include a memory, a cache, a disk, or an optical disk.

[0075] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heat dissipation structure for a notebook computer, comprising a heat dissipation fan (34) for installation in a main housing (10) of the notebook computer, characterized in that: A plurality of driving members (40) are installed on the fan housing (341) of the heat dissipation fan (34), and the driving ends of the plurality of driving members (40) are commonly connected to a protective leakage cover (32), and the protective leakage cover (32) is provided with a plurality of air inlet holes (321); It also includes an elastic ring (31) for being installed at the air inlet of the main housing (10), and the protective leak cover (32) is fixedly connected to the central through hole of the elastic ring (31); The plurality of driving members (40) are used to drive the protective drain cover (32) to move in a direction away from the cooling fan (34) so ​​as to reduce the air inlet pressure of the cooling fan (34); The opening edge of one end of the air inlet away from the cooling fan (34) is concavely formed with a stepped groove for fixing the elastic ring (31); a surface of one side of the elastic ring (31) away from the cooling fan (34) is provided with a plurality of pressure relief holes (311) at intervals; the pressure relief holes (311) are blocked or partially blocked by the stepped groove; When the protective leak cover (32) is driven to move in a direction away from the cooling fan (34), the elastic ring (31) is deformed accordingly, and the pressure relief through hole (311) is opened or the air intake of the pressure relief through hole (311) is increased.

2. The heat dissipation structure of a notebook computer according to claim 1, characterized in that: The air inlet is opened on the bottom surface of the main housing (10), and the side surface of the main housing (10) is provided with an air outlet (101); the air intake port (3402) of the cooling fan (34) is arranged facing the air inlet, and the air supply port (3401) of the cooling fan (34) is arranged facing the air outlet (101).

3. The heat dissipation structure of a notebook computer according to claim 1, characterized in that: An air inlet adjustment portion (342) is protruded from opposite side walls of the fan housing (341), and one driving member (40) is mounted on each of the air inlet adjustment portions (342). The driving ends of the two driving members (40) are fixedly connected to the edges of the top surface of the protective drain cover (32). When the driving ends of the two driving members (40) are both in the initial position, the bottom surface of the protective leakage cover (32) is flush with the bottom surface of the elastic ring (31).

4. The heat dissipation structure of a notebook computer according to claim 3, characterized in that: A plurality of fixing and mounting portions (343) for fixing and connecting with the main housing (10) are also protruded from the side wall of the fan housing (341).

5. A notebook computer, comprising a main housing (10), characterized in that: The main housing (10) is installed with a heat dissipation structure of a notebook computer as claimed in any one of claims 1 to 4.

6. The notebook computer according to claim 5, characterized in that: A mounting groove (21) is provided on one side of the main housing (10), and a side edge of the display (20) is rotatably mounted in the mounting groove (21); The main housing (10) is provided with a plurality of air ducts for heat dissipation, the air ducts comprising an air outlet (101) provided at the bottom of the mounting groove (21) and an air inlet provided at the bottom surface of the main housing (10), and the heat dissipation fan (34) for guiding the wind direction is provided in each of the air ducts in the main housing (10); A heat sink (33) is also provided in the main housing (10), and heat sink fins (331) are respectively provided in each of the air ducts on the heat sink (33).

7. The notebook computer according to claim 6, characterized in that: A plurality of parallel heat dissipation channels (3311) are formed on the heat dissipation fins (331), and one end of the heat dissipation channel (3311) away from the heat dissipation fan (34) is arranged directly opposite to the air outlet (101).

8. The notebook computer according to claim 6, characterized in that: A fixed housing (11) is disposed inside the main housing (10), and a plurality of fixed mounting portions (343) protruding from two opposite side walls of the fan housing (341) are fixedly connected to the fixed housing (11); The air inlet is a through hole, and an opening edge of one end of the air inlet away from the heat dissipation fan (34) is concavely formed with a stepped groove for fixing and installing the elastic ring (31); a plurality of pressure relief through holes (311) are spaced apart on the bottom surface of the elastic ring (31); When the driving ends of the two driving members (40) are both in the initial position, the bottom surface of the elastic ring (31) is flush with the bottom surface of the main housing (10), and the pressure relief through hole (311) is blocked or partially blocked by the stepped groove; When the protective leak cover (32) is driven to move in a direction away from the cooling fan (34), the elastic ring (31) is deformed accordingly, and the pressure relief through hole (311) is opened or the air intake of the pressure relief through hole (311) is increased.

9. The notebook computer according to claim 8, characterized in that: A plurality of foot pads (100) are also installed on the bottom surface of the main housing (10); The protective leak cover (32) can be driven to move in a direction away from the cooling fan (34) to a preset limit position; when the protective leak cover (32) is driven to move to the limit position, the air inlet pressure of the cooling fan (34) is minimum; Wherein, the distance between the protective leak cover (32) at the extreme position and the bottom surface of the main housing (10) is smaller than the height of the foot pad (100).

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