CN211297548U - Internet big data information processing device - Google Patents
Internet big data information processing device Download PDFInfo
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- CN211297548U CN211297548U CN202020358028.3U CN202020358028U CN211297548U CN 211297548 U CN211297548 U CN 211297548U CN 202020358028 U CN202020358028 U CN 202020358028U CN 211297548 U CN211297548 U CN 211297548U
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- heat dissipation
- heat
- bottom plate
- bevel gear
- information processing
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Abstract
The utility model discloses an internet big data information processing apparatus, including bottom plate, gyro wheel, supporting mechanism, processor body, box, still include first heat dissipation mechanism, second heat dissipation mechanism, first heat dissipation mechanism is including being located heat dissipation casing, heat transfer chamber, inlet scoop and air conditioning import, air conditioning import and air conditioning source intercommunication, inlet scoop and suction fan intercommunication, the utility model discloses the setting of heat dissipation casing, air conditioning import and inlet scoop makes the surface of heat dissipation casing and quick-witted case form the heat dissipation chamber to the air conditioning flow that gets into through the air conditioning import dispels the heat to quick-witted case, has improved radiating efficiency, and the setting of absorber plate absorbs the heat of processor body and dispels the heat through the heat conduction stick, has further improved radiating efficiency, and supporting mechanism's setting is nimble to be removed and fixed, has realized labour saving and time saving's effect in the transport.
Description
Technical Field
The utility model relates to an information processing apparatus technical field, concretely relates to internet big data information processing apparatus.
Background
The information processing machine refers to a group of devices for acquiring data and converting them into information to provide the information to a receiver or a user, and there are two kinds of processing machines for converting data into information, namely, a centralized information processing machine in which the data conversion device is located at the same place and a distributed information processing machine in which the data conversion device is distributed at different places, and an internet big data information processing device is an accessory device for converting acquired data into information to be transmitted to a receiver or a user, which is widely used in the field of information processing; present big data information processing apparatus, the radiating effect is poor, the heat dissipation is not even enough, and heat abstractor's cold air current spout is direct to the interior electrical components of big data server cooling of blowing, most cold air current spout spun cold air current all has a large amount of steam can cause electrical components to rust the damage on the one hand, on the other hand, electrical components under the state of generating heat directly cools down, under the alternative of quench suddenly hot, easily make electrical components's damage, and current big data information processing apparatus of internet removes inconveniently, waste time and energy in the transport transportation, work efficiency is lower.
Therefore, it is a problem worthy of research to provide an internet big data information processing device which is convenient for heat dissipation of a processor body and is convenient for movement.
Disclosure of Invention
The utility model aims at providing a be convenient for to the heat dissipation of treater body and remove convenient big data information processing device of internet to the not enough of above-mentioned prior art.
The purpose of the utility model is realized like this:
the utility model provides an internet big data information processing device, comprising a base plate, gyro wheel and the supporting mechanism with the lower fixed surface of bottom plate is connected, be located the processor body of bottom plate top, be located the outside box of processor body, still including the first heat dissipation mechanism that is located the surface of box, be located the second heat dissipation mechanism of box internal surface, first heat dissipation mechanism is including the heat dissipation casing that is located the surface of box, be located the heat transfer chamber between heat dissipation casing and the box, be located the top of heat dissipation casing and make the inlet scoop of heat transfer chamber and outside intercommunication, be located the bottom of heat dissipation casing and make the air conditioning import of heat transfer chamber and outside intercommunication, air conditioning import and air conditioning source intercommunication, inlet scoop and suction fan intercommunication.
The second heat dissipation mechanism comprises a heat absorption plate fixedly connected with the inner surface of the box body and a plurality of heat conduction rods fixedly connected with the outer surface of the heat absorption plate and the outer surface of the heat dissipation shell.
The bottom of the box body is fixedly connected with the inner surface of the heat dissipation shell through the supporting block.
The heat absorbing plate, the heat conducting rod and the heat dissipation shell are all made of copper or aluminum alloy materials.
The supporting mechanism comprises a first upright post and a second upright post which are movably connected with the lower surface of the bottom plate, a first moving block which is movably connected with the bottom of the first upright post through a first connecting rod, a second moving block which is movably connected with the bottom of the second upright post through a second connecting rod, and a driving mechanism which enables the first moving block and the second moving block to be far away from or close to each other, wherein the distance between the bottom of the first upright post and the lower surface of the bottom plate is larger than the distance between the lower surface of the roller and the lower surface of the bottom plate, and the distance between the bottom of the second upright post and the lower surface of the bottom plate is larger than the distance between the lower surface of the roller and.
The driving mechanism comprises a motor fixedly connected with the lower surface of the bottom plate, a first bevel gear fixedly connected with the output end of the motor, a second bevel gear meshed with the first bevel gear, and a screw rod penetrating through the center of the second bevel gear and fixedly connected with the second bevel gear, and the screw rod is positioned on a horizontal plane.
The screw is provided with a first thread and a second thread, the thread directions of the first thread and the second thread are opposite, the first thread is located on the left side of the second bevel gear, the second thread is located on the right side of the second bevel gear, the first moving block is located on the left side of the second bevel gear and matched with the first thread, the second moving block is located on the right side of the second bevel gear and matched with the second thread, the second bevel gear drives the screw to rotate, and the first moving block and the second moving block are far away from or close to each other.
The two end parts of the screw rod are fixedly connected with the lower surface of the bottom plate through a third connecting plate, and the two end parts of the screw rod are movably connected with the third connecting plate through a bearing.
The supporting mechanism comprises a hydraulic cylinder fixedly connected with the lower surface of the bottom plate and a base plate fixedly connected with the telescopic end of the hydraulic cylinder, and the distance between the bottom of the telescopic end of the hydraulic cylinder and the lower surface of the bottom plate is larger than the distance between the lower surface of the roller and the lower surface of the bottom edge.
Has the positive and beneficial effects that: the utility model discloses the setting of heat dissipation casing, air conditioning import and inlet scoop makes the surface of heat dissipation casing and quick-witted case form the heat dissipation chamber to the cold air current that gets into through the air conditioning import dispels the heat to quick-witted case, has improved the radiating efficiency, and the setting of absorber plate absorbs the heat of treater body and dispels the heat through the heat conduction stick, has further improved the radiating efficiency, and the setting of supporting mechanism is nimble to be removed and fixed, has realized labour saving and time saving's effect in the transport.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a supporting mechanism according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of the structure in the direction A;
fig. 4 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 5 is a schematic structural diagram of a supporting mechanism in the direction B;
in the figure, the following steps are carried out: the heat-dissipation device comprises a bottom plate 1, a push handle 2, rollers 3, a supporting mechanism 4, a box body 5, a processor body 6, a heat-dissipation shell 7, a heat-absorbing plate 8, a heat-conducting rod 9, a heat-exchange cavity 10, a cold air inlet 11, an air suction opening 12, a supporting block 13, a first upright column 14, a second upright column 15, a first connecting rod 16, a second connecting rod 17, a motor 18, a first bevel gear 19, a second bevel gear 20, a screw rod 21, a first moving block 22, a first connecting plate 23, a second moving block 24, a second connecting plate 25, a third connecting plate 26, a hydraulic cylinder 27 and a base plate 28.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
As shown in figure 1, the internet big data information processing device comprises a bottom plate 1, a roller 3 and a supporting mechanism 4 which are fixedly connected with the lower surface of the bottom plate 1, a processor body 6 which is positioned above the bottom plate 1, a box body 5 which is positioned outside the processor body 6, a push handle 2 which is fixed on the upper surface of the bottom plate 1 and is positioned on the left side of the upper surface of the bottom plate 1, the roller 3 is fixedly connected with the lower surface of the bottom plate 1 through a connecting frame, the processor body 6 is fixedly connected with the inside of the box body 5 through a bolt component, a first heat dissipation mechanism which is positioned on the outer surface of the box body 5, a second heat dissipation mechanism which is positioned on the inner surface of the box body 5, the first heat dissipation mechanism comprises a heat dissipation shell 7 which is positioned on the outer surface of the box body 5, a heat exchange cavity 10 which is positioned between the heat dissipation shell 7 and the box body 5, and an air suction inlet, The air conditioning inlet 11 that is located the bottom of heat dissipation casing 7 and makes heat transfer chamber 10 and outside intercommunication, the internal surface fixed connection of supporting shoe 13 and heat dissipation casing 7 is passed through to the bottom of box 5, air conditioning inlet 11 and air conditioning source intercommunication, inlet scoop 12 and suction fan intercommunication, the heat that processor body 6 produced is discharged into heat transfer chamber 10 through box 5, air conditioning passes through the air conditioning inlet and gets into heat transfer chamber 10, be used for reducing the outside temperature of box 5 and the outside temperature of processor body 6, avoid air conditioning direct and processor body 6 contact, reduce the steam in the air conditioning and contact with processor body 6, the life of processor body 6 has been prolonged, after the heat transfer of air conditioning and heat transfer chamber 10, gas after the heat transfer is discharged heat transfer chamber 10 through inlet scoop 11. The second heat dissipation mechanism comprises a heat absorption plate 8 fixedly connected with the inner surface of the box body 5 and a plurality of heat conduction rods 9 fixedly connected with the outer surface of the heat absorption plate 8 and the outer surface of the heat dissipation shell 7. The absorber plate 8, heat conduction stick 9 and heat dissipation casing 7 all adopt copper or aluminum alloy material, bolt assembly fixed connection is passed through with the internal surface of box 5 to absorber plate 11, the surface welded fastening of box 5 and absorber plate 8 is passed to the one end of heat conduction stick 9, the surface welded of welding and heat dissipation casing 7 is passed through to the other end of heat conduction stick 9, be convenient for with the timely discharge of the inside heat of box 5, the combined action of first heat dissipation mechanism and second heat dissipation mechanism, in time discharge the inside heat and the outside heat of box 5, the radiating efficiency is high, and convenient operation, the service life of processor body 6 has been prolonged.
As shown in fig. 2 and 3, two sets of supporting mechanisms 4 are provided, which are respectively located at the front side and the rear side of the lower surface of the bottom plate 1, the supporting mechanisms 4 include a first upright post 14 and a second upright post 15 movably connected with the lower surface of the bottom plate 1, a first moving block 22 movably connected with the bottom of the first upright post 14 through a first connecting rod 16, a second moving block 24 movably connected with the bottom of the second upright post 15 through a second connecting rod 17, and a driving mechanism for making the first moving block 22 and the second moving block 24 move away from or close to each other, the bottom of the first moving block 22 is movably connected with the first connecting rod 16 through a first connecting plate, the bottom of the second moving block 24 is movably connected with the second connecting rod 17 through a second connecting plate 25, that is, one end of the first connecting plate 23 of the first connecting rod 16 is fixedly connected, the other end of the first connecting rod 16 is connected with the bottom of the first upright post 14, the two ends of the second connecting rod 17 are respectively connected with the second upright post 15 and the second connecting plate 25 through pin shafts, the top of the first upright post 14 is movably connected with the lower surface of the bottom plate 1 through a pin shaft, the top of the second upright post 15 is movably connected with the lower surface of the bottom plate 1 through a pin shaft, the distance between the bottom of the first upright post 14 and the lower surface of the bottom plate 1 is greater than the distance between the lower surface of the roller 3 and the lower surface of the bottom plate 1, the distance between the bottom of the second upright post 15 and the lower surface of the bottom plate 1 is greater than the distance between the lower surface of the roller 3 and the lower surface of the bottom plate 1, when the first upright post 14 and the second upright post 15 are in the vertical direction, the roller 3 is not contacted with the ground, the first moving block 22 moves leftwards, the first moving block 22 pushes the bottom of the first upright post 14 to move leftwards through the first connecting rod 16 until the, the second moving block 24 pushes the bottom of the second upright post 15 to move rightwards through the second connecting rod 17 until the second upright post 15 is in a vertical state, at this time, the driving mechanism stops working, the first upright post 14 and the second upright post 15 support the bottom plate 1, and the roller 3 leaves the ground. The driving mechanism comprises a motor 18 fixedly connected with the lower surface of the bottom plate 1, a first bevel gear 19 fixedly connected with the output end of the motor 18, a second bevel gear 20 meshed with the first bevel gear 19, and a screw 21 penetrating through the center of the second bevel gear 20 and fixedly connected with the second bevel gear 20, wherein the central axis of the first bevel gear 19 is in the vertical direction, the central axis of the second bevel gear 20 is in the horizontal direction, the screw 21 penetrates through the central axis of the second bevel gear 20 and is fixed, the second bevel gear 20 is located at the midpoint of the screw 21, and the screw 21 is located on the horizontal plane. The screw 21 is provided with a first thread and a second thread, the thread directions of the first thread and the second thread are opposite, the first thread is located on the left side of the second bevel gear 20, the second thread is located on the right side of the second bevel gear 20, the first moving block 22 is located on the left side of the second bevel gear 20 and is matched with the first thread, the second moving block 24 is located on the right side of the second bevel gear 20 and is matched with the second thread, the second bevel gear 20 drives the screw 21 to rotate, and then the first moving block 22 and the second moving block 24 are far away from or close to each other. The two end parts of the screw 21 are fixedly connected with the lower surface of the bottom plate 1 through a third connecting plate 26, the two end parts of the screw 21 are movably connected with the third connecting plate 26 through a bearing, a mounting hole is formed in the third connecting plate 26, the bearing is fixed in the mounting hole, one end of the screw 21 is fixed with the inner surface of the bearing, a first limiting plate is arranged on the left side of the first upright post 14, a second limiting plate is arranged on the right side of the second upright post 15, the top of the first limiting plate and the top of the second limiting plate are fixedly connected with the lower surface of the bottom plate 1, the first limiting plate and the second limiting plate are both in the vertical direction, when the first upright post 14 and the second upright post 15 are in the vertical direction, the right side of the first limiting plate is in contact with the left side of the first upright post 14, the bottom of the first upright post 14 is prevented from continuously moving leftwards, the left side of the second limiting plate is in contact with, the first upright 14 and the second upright 15 are ensured to be in a vertical state.
When carrying is needed, at this time, the motor 18 is started, the motor 18 drives the screw 21 to rotate through the first bevel gear 19 and the second bevel gear 20, the screw 21 rotates, the first moving block 22 moves rightwards, at this time, the first moving block 22 drives the bottom of the first upright post 14 to move rightwards through the first connecting rod 16, the second moving block 24 moves leftwards, the second moving block 24 drives the bottom of the second upright post 15 to move leftwards through the second connecting rod 17 until the roller 3 lands, meanwhile, the bottom of the first upright post 14 and the bottom of the second upright post 15 leave the ground, the motor 18 is turned off, at this time, the push handle 2 is pushed to carry, manpower is saved, the operation is convenient, after carrying to a proper position, when the supporting mechanism 4 is needed to support, the motor 18 is started to rotate in the reverse direction, the motor 18 drives the screw 21 to rotate in the reverse direction through the first bevel gear 19 and the second bevel gear 20, when the screw 21 rotates, the first moving block 22 is made to move leftwards, at this time, the first moving block 22 drives the bottom of the first upright post 14 to move leftwards through the first connecting rod 16, the second moving block 24 moves rightwards, the second moving block 24 drives the bottom of the second upright post 15 to move rightwards through the second connecting rod 17 until the roller 3 leaves, and meanwhile, the bottom of the first upright post 14 and the bottom of the second upright post 15 are in contact with the ground.
Example 2
As shown in FIG. 4, the internet big data information processing device comprises a bottom plate 1, a roller 3 and a supporting mechanism 4 which are fixedly connected with the lower surface of the bottom plate 1, a processor body 6 which is positioned above the bottom plate 1, a box body 5 which is positioned outside the processor body 6, a push handle 2 which is fixed on the upper surface of the bottom plate 1 and is positioned on the left side of the upper surface of the bottom plate 1, the roller 3 which is fixedly connected with the lower surface of the bottom plate 1 through a connecting frame, the processor body 6 which is fixedly connected with the inside of the box body 5 through a bolt component, a first heat dissipation mechanism which is positioned on the outer surface of the box body 5, a second heat dissipation mechanism which is positioned on the inner surface of the box body 5, wherein the first heat dissipation mechanism comprises a heat dissipation shell 7 which is positioned on the outer surface of the box body 5, a heat exchange cavity 10 which is positioned between the heat dissipation shell 7 and the box body 5, and, The air conditioning inlet 11 that is located the bottom of heat dissipation casing 7 and makes heat transfer chamber 10 and outside intercommunication, the internal surface fixed connection of supporting shoe 13 and heat dissipation casing 7 is passed through to the bottom of box 5, air conditioning inlet 11 and air conditioning source intercommunication, inlet scoop 12 and suction fan intercommunication, the heat that processor body 6 produced is discharged into heat transfer chamber 10 through box 5, air conditioning passes through the air conditioning inlet and gets into heat transfer chamber 10, be used for reducing the outside temperature of box 5 and the outside temperature of processor body 6, avoid air conditioning direct and processor body 6 contact, reduce the steam in the air conditioning and contact with processor body 6, the life of processor body 6 has been prolonged, after the heat transfer of air conditioning and heat transfer chamber 10, gas after the heat transfer is discharged heat transfer chamber 10 through inlet scoop 11. The second heat dissipation mechanism comprises a heat absorption plate 8 fixedly connected with the inner surface of the box body 5 and a plurality of heat conduction rods 9 fixedly connected with the outer surface of the heat absorption plate 8 and the outer surface of the heat dissipation shell 7. The absorber plate 8, heat conduction stick 9 and heat dissipation casing 7 all adopt copper or aluminum alloy material, bolt assembly fixed connection is passed through with the internal surface of box 5 to absorber plate 11, the surface welded fastening of box 5 and absorber plate 8 is passed to the one end of heat conduction stick 9, the surface welded of welding and heat dissipation casing 7 is passed through to the other end of heat conduction stick 9, be convenient for with the timely discharge of the inside heat of box 5, the combined action of first heat dissipation mechanism and second heat dissipation mechanism, in time discharge the inside heat and the outside heat of box 5, the radiating efficiency is high, and convenient operation, the service life of processor body 6 has been prolonged.
As shown in fig. 5, two sets of support mechanisms are provided, which are respectively located at the left and right sides of the central line axis of the bottom plate, the support mechanism 4 comprises a hydraulic cylinder 27 fixedly connected with the lower surface of the bottom plate 1, a backing plate 28 fixedly connected with the telescopic end of the hydraulic cylinder 27, the backing plate 28 is fixedly connected with the telescopic end of the hydraulic cylinder 27 through a bolt assembly, the upper surface of the hydraulic cylinder 27 is fixedly connected with the lower surface of the bottom plate 1 through a bolt assembly, the distance between the bottom of the telescopic end of the hydraulic cylinder 27 and the lower surface of the bottom edge of the bottom plate 1 is greater than the distance between the lower surface of the roller and the lower surface of the bottom edge, when the processor body 6 needs to be moved, the hydraulic cylinder 27 is opened to move the telescopic end of the hydraulic cylinder 27 upwards until the roller 3 contacts with the ground, the push handle 2 is pushed to move, and after, and the mat 28 is in contact with the ground until the wheels 3 leave the ground.
The utility model discloses the setting of heat dissipation casing, air conditioning import and inlet scoop makes the surface of heat dissipation casing and quick-witted case form the heat dissipation chamber to the cold air current that gets into through the air conditioning import dispels the heat to quick-witted case, has improved the radiating efficiency, and the setting of absorber plate absorbs the heat of treater body and dispels the heat through the heat conduction stick, has further improved the radiating efficiency, and the setting of supporting mechanism is nimble to be removed and fixed, has realized labour saving and time saving's effect in the transport.
Claims (9)
1. The utility model provides an internet big data information processing device, includes the bottom plate, with the gyro wheel and the supporting mechanism of the lower fixed surface of bottom plate connection, be located the processor body of bottom plate top, be located the outside box of processor body, its characterized in that: the first heat dissipation mechanism comprises a heat dissipation shell positioned on the outer surface of the box body, a heat exchange cavity positioned between the heat dissipation shell and the box body, an air suction opening positioned at the top of the heat dissipation shell and enabling the heat exchange cavity to be communicated with the outside, and an air cooling inlet positioned at the bottom of the heat dissipation shell and enabling the heat exchange cavity to be communicated with the outside, wherein the air cooling inlet is communicated with an air cooling source, and the air suction opening is communicated with a suction fan.
2. The internet big data information processing apparatus according to claim 1, wherein: the second heat dissipation mechanism comprises a heat absorption plate fixedly connected with the inner surface of the box body and a plurality of heat conduction rods fixedly connected with the outer surface of the heat absorption plate and the outer surface of the heat dissipation shell.
3. The internet big data information processing apparatus according to claim 2, wherein: the bottom of the box body is fixedly connected with the inner surface of the heat dissipation shell through the supporting block.
4. The internet big data information processing apparatus according to claim 3, wherein: the heat absorbing plate, the heat conducting rod and the heat dissipation shell are all made of copper or aluminum alloy materials.
5. The internet big data information processing apparatus according to claim 1, wherein: the supporting mechanism comprises a first upright post and a second upright post which are movably connected with the lower surface of the bottom plate, a first moving block which is movably connected with the bottom of the first upright post through a first connecting rod, a second moving block which is movably connected with the bottom of the second upright post through a second connecting rod, and a driving mechanism which enables the first moving block and the second moving block to be far away from or close to each other, wherein the distance between the bottom of the first upright post and the lower surface of the bottom plate is larger than the distance between the lower surface of the roller and the lower surface of the bottom plate, and the distance between the bottom of the second upright post and the lower surface of the bottom plate is larger than the distance between the lower surface of the roller and.
6. The internet big data information processing apparatus according to claim 5, wherein: the driving mechanism comprises a motor fixedly connected with the lower surface of the bottom plate, a first bevel gear fixedly connected with the output end of the motor, a second bevel gear meshed with the first bevel gear, and a screw rod penetrating through the center of the second bevel gear and fixedly connected with the second bevel gear, and the screw rod is positioned on a horizontal plane.
7. The internet big data information processing apparatus according to claim 6, wherein: the screw is provided with a first thread and a second thread, the thread directions of the first thread and the second thread are opposite, the first thread is located on the left side of the second bevel gear, the second thread is located on the right side of the second bevel gear, the first moving block is located on the left side of the second bevel gear and matched with the first thread, the second moving block is located on the right side of the second bevel gear and matched with the second thread, the second bevel gear drives the screw to rotate, and the first moving block and the second moving block are far away from or close to each other.
8. The internet big data information processing apparatus according to claim 7, wherein: the two end parts of the screw rod are fixedly connected with the lower surface of the bottom plate through a third connecting plate, and the two end parts of the screw rod are movably connected with the third connecting plate through a bearing.
9. The internet big data information processing apparatus according to claim 1, wherein: the supporting mechanism comprises a hydraulic cylinder fixedly connected with the lower surface of the bottom plate and a base plate fixedly connected with the telescopic end of the hydraulic cylinder, and the distance between the bottom of the telescopic end of the hydraulic cylinder and the lower surface of the bottom plate is larger than the distance between the lower surface of the roller and the lower surface of the bottom edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020358028.3U CN211297548U (en) | 2020-03-20 | 2020-03-20 | Internet big data information processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020358028.3U CN211297548U (en) | 2020-03-20 | 2020-03-20 | Internet big data information processing device |
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| Publication Number | Publication Date |
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| CN211297548U true CN211297548U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020358028.3U Expired - Fee Related CN211297548U (en) | 2020-03-20 | 2020-03-20 | Internet big data information processing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113543612A (en) * | 2021-09-15 | 2021-10-22 | 南昌龙旗信息技术有限公司 | Mobile phone heat dissipation device |
-
2020
- 2020-03-20 CN CN202020358028.3U patent/CN211297548U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113543612A (en) * | 2021-09-15 | 2021-10-22 | 南昌龙旗信息技术有限公司 | Mobile phone heat dissipation device |
| CN113543612B (en) * | 2021-09-15 | 2021-12-07 | 南昌龙旗信息技术有限公司 | Mobile phone heat dissipation device |
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