CN110545027B - LED switching power supply with heat dissipation wind path - Google Patents
LED switching power supply with heat dissipation wind path Download PDFInfo
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- CN110545027B CN110545027B CN201910866831.XA CN201910866831A CN110545027B CN 110545027 B CN110545027 B CN 110545027B CN 201910866831 A CN201910866831 A CN 201910866831A CN 110545027 B CN110545027 B CN 110545027B
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- Prior art keywords
- air
- shell
- rotating shaft
- circuit board
- board assembly
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
Abstract
The invention relates to the technical field of power supply equipment, and particularly discloses an LED switch power supply with a heat dissipation air path, which comprises a shell and a circuit board assembly, wherein the circuit board assembly is suspended along the central axis of the shell through an outer support rod; and a flow guide part linked with the air guide part is also arranged in the shell. According to the embodiment of the invention, the air flow of the air inducing part is pushed to the air guiding fan blade of the air exhausting part by the air inducing fan blade arranged on the third rotating shaft, so that the flowing air flow flowing through the inner ring of the circuit board assembly can radiate the inner ring of the circuit board assembly; under the effect of induced air portion and exhaust portion to the rotatory first rotary disk of cooperation and second rotary disk can form the spiral heat dissipation air current in circuit board assembly outer lane in the inner chamber of shell around, dispel the heat to circuit board assembly external electronic components.
Description
Technical Field
The invention relates to the technical field of power supply equipment, in particular to an LED switch power supply with a heat dissipation air path.
Background
The heat dissipation problem of the LED switch power supply is a key point for determining the service life of a product, the heat dissipation of the traditional LED switch power supply is mainly realized by directly blowing the fan with a single structure against a key component, the mode is easy to enable the wind of the fan to blow on the component and then rebound to penetrate through the fan blade and the gap between the fan and the heat dissipation sheet, and the wind is sucked again by the air inlet end of the fan and then blown out, so that partial hot wind is not discharged in time, and the heat dissipation effect is directly influenced.
Disclosure of Invention
The present invention is directed to an LED switching power supply with a heat dissipation air path to solve the problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
an LED switch power supply with a heat dissipation air path comprises a shell and a circuit board assembly which is suspended along the central axis of the shell through an outer support rod, wherein one end of the shell is provided with an air inducing part, and the other end of the shell is provided with an air exhausting part; a flow guide part linked with the air guide part is also arranged in the shell;
the flow guide part comprises a first rotating disc which is rotatably arranged in an inner cavity at one end of the shell and is positioned between the air guide part and the circuit board assembly, wherein one end of the first rotating disc is provided with a first air guide opening in a penetrating manner;
the air guide part also comprises a second rotating disk which is rotatably arranged in the inner cavity at the other end of the shell and is positioned between the air exhaust part and the circuit board assembly, and one end of the second rotating disk penetrates through a second air induction port;
a rotating shaft assembly penetrating through the circuit board assembly is rotatably arranged in the shell along the central axis of the shell;
the shell is also provided with a driving motor for driving the rotating shaft assembly to rotate;
and a drainage fan blade used for pushing the airflow of the air guiding part to the air exhaust part is fixedly arranged on the third rotating shaft arranged in the circuit board assembly.
As a further scheme of the invention: the rotating shaft assembly comprises a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft, the first rotating shaft is linked with the air inducing portion, the second rotating shaft is fixedly arranged along the central axis of the first rotating disk, the third rotating shaft is arranged in a penetrating mode through an inner support rod along the central axis in the circuit board assembly in a rotating mode, and the fourth rotating shaft is fixedly arranged along the central axis of the second rotating disk.
As a further scheme of the invention: the first rotating shaft and the second rotating shaft are in transmission connection through a first speed changer; the second rotating shaft is in transmission connection with the third rotating shaft through a second transmission; and the third rotating shaft and the fourth rotating shaft are in transmission connection through a third transmission.
As a further scheme of the invention: and under the linkage action of a rotating shaft assembly provided with a third speed changer and a second speed changer, the first air induction port and the second air induction port are always arranged in a diagonal distribution manner.
As a further scheme of the invention: the first transmission and the third transmission are speed increasers; the second transmission is a speed reducer.
As a further scheme of the invention: the driving motor is fixedly installed on the inner wall of the air exhaust end of the shell, and an output shaft of the driving motor is in driving connection with the other end of the fourth rotating shaft through a coupler.
As a further scheme of the invention: the air inlet fan blade is linked with the first rotating shaft in a chain wheel transmission mode, and when the first rotating shaft rotates, the air inlet fan blade can be driven to rotate to enable external air flow to enter the shell;
the air inlet end of the air inlet is provided with an air inlet filter screen used for filtering air flow.
As a further scheme of the invention: the outer wall of the air outlet end of the shell is provided with a communicating hole, and the outer ring of the air outlet end of the shell is provided with an air exhaust channel communicated with the inner cavity of the shell through the communicating hole;
the air exhaust part comprises an air exhaust fan blade which is rotatably erected in the communicating hole and is used for introducing air flow in the shell into an air exhaust channel, an air exhaust motor used for driving the air exhaust fan blade to rotate is mounted on the inner wall of the air exhaust channel, the rotating air exhaust fan blade leads the air flow in the shell into the air exhaust channel, and the air flow in the air exhaust channel is exhausted through an opening of the air exhaust channel;
the opening of the air exhaust channel is also provided with a protective filter screen to prevent flying insects from entering the shell.
Compared with the prior art, the embodiment of the invention has the advantages that the air flow of the air inducing part is pushed to the air guide fan blade of the air exhausting part by the air inducing fan blade arranged on the third rotating shaft, so that the flowing air flow flowing through the inner ring of the circuit board assembly can radiate the inner ring of the circuit board assembly; under the effect of induced air portion and exhaust portion to rotatory first rotary disk of cooperation and second rotary disk, and be in the first induced air mouth and the second induced air mouth that diagonal distribution set up all the time, can form the spiral heat dissipation air current of surrounding in circuit board assembly outer lane at the inner chamber of shell, thereby realize the abundant heat dissipation to circuit board assembly external electronic components.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a schematic structural diagram of an LED switching power supply with a cooling air path according to an embodiment of the present invention.
Fig. 2 is a schematic connection diagram of a circuit board assembly in the LED switching power supply with a heat dissipation air path according to the embodiment of the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 1.
Fig. 4 is a schematic perspective view of a rotary disk in an LED switching power supply with a heat dissipation air path according to an embodiment of the present invention.
In the figure: 1-shell, 2-air inlet, 3-air inlet fan blade, 4-air inlet filter screen, 5-first rotating disk, 6-outer support rod, 7-first rotating shaft, 8-first speed changer, 9-third rotating shaft, 10-inner support rod, 11-air guide fan blade, 12-circuit board component, 13-second rotating disk, 14-driving motor, 15-fourth rotating shaft, 16-third speed changer, 17-second speed changer, 18-second rotating shaft, 19-first air guide port, 20-second air guide port, 21-air exhaust channel, 22-air exhaust motor, 23-air exhaust fan blade, 24-communication hole and 25-protective filter screen.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1 to 4, in an embodiment of the present invention, an LED switching power supply with a heat dissipation air path includes a housing 1 and a circuit board assembly 12 suspended along a central axis of the housing 1 by an outer support rod 6, where the circuit board assembly 12 is a tubular structure surrounded by a plurality of circuit boards in a detachable connection manner and having a polygonal cross section, one end of the housing 1 has an air guiding portion, and the other end of the housing 1 has an air exhausting portion; a flow guide part linked with the air guide part is also arranged in the shell 1; the flow guide part comprises a first rotating disk 5 which is rotatably arranged in an inner cavity at one end of the shell 1 and is positioned between the air guide part and the circuit board assembly 12, wherein one end of the first rotating disk 5 is provided with a first air guide opening 19 in a penetrating way; the flow guide part also comprises a second rotating disk 13 which is rotatably arranged in the inner cavity at the other end of the shell 1 and is positioned between the exhaust part and the circuit board assembly 12, and one end of the second rotating disk 13 is provided with a second air induction port 20 in a penetrating way;
a rotating shaft assembly penetrating through a circuit board assembly 12 is rotatably arranged in the shell 1 along the central axis of the shell, the rotating shaft assembly comprises a first rotating shaft 7 linked with the air guiding part, a second rotating shaft 18 fixedly arranged along the central axis of the first rotating disk 5, a third rotating shaft 9 rotatably arranged along the central axis of the circuit board assembly 12 through an inner support rod 10, and a fourth rotating shaft 15 fixedly arranged along the central axis of the second rotating disk 13, wherein the first rotating shaft 7 and the second rotating shaft 18 are in transmission connection through a first speed changer 8; the second rotating shaft 18 is in transmission connection with the third rotating shaft 9 through a second transmission 17; the third rotating shaft 9 and the fourth rotating shaft 15 are in transmission connection through a third transmission 16.
Preferably, in the embodiment provided by the present invention, the first transmission 8 and the third transmission 16 are speed increasers, and the second transmission 17 is a speed reducer. The outer shell 1 is further provided with a driving motor 14 for driving the rotating shaft assembly to rotate, specifically, the driving motor 14 is fixedly installed on the inner wall of the air exhaust end of the outer shell 1, and an output shaft of the driving motor 14 is in driving connection with the other end of the fourth rotating shaft 15 through a coupler.
A flow guide fan blade 11 for pushing the air flow of the air guide part to the exhaust part is fixedly arranged on the third rotating shaft 9 arranged in the circuit board assembly 12, and the air flow flowing through the inner ring of the circuit board assembly 12 dissipates the heat of the inner ring of the circuit board assembly 12; under the linkage action of the rotating shaft assembly with the third speed changer 16 and the second speed changer 17, the first air induction port 19 and the second air induction port 20 are arranged in a diagonal distribution mode all the time, under the action of the air induction part and the air exhaust part, the first rotating disk 5 and the second rotating disk 13 which rotate in a matched mode, the first air induction port 19 and the second air induction port 20 which are arranged in a diagonal distribution mode all the time can form heat dissipation air flow surrounding the outer ring of the circuit board assembly 12 in the inner cavity of the shell 1, and therefore the inside and outside electronic components of the circuit board assembly 12 can be fully cooled.
Example 2
With continuing reference to fig. 1-4, different from embodiment 1, in the embodiment provided by the present invention, the induced air end of the housing 1 has an air inlet 2, the induced air portion includes an air inlet fan blade 3 rotatably erected in the air inlet 2, the air inlet fan blade 3 is linked with the first rotating shaft 7 in a sprocket transmission manner, and when the first rotating shaft 7 rotates, the air inlet fan blade 3 can be driven to rotate to enable external air flow to enter the housing 1; the flying insects or dust outside the surface shell 1 enter the shell 1, and the air inlet end of the air inlet 2 is provided with an air inlet filter screen 4 for filtering air flow.
Further, in the embodiment provided by the present invention, the outer wall of the air outlet end of the casing 1 is provided with a communication hole 24, the outer ring of the air outlet end of the casing 1 is provided with an air exhaust channel 21 communicated with the inner cavity of the casing 1 through the communication hole 24, the air exhaust part includes an air exhaust fan blade 23 rotatably erected in the communication hole 24 and used for introducing the air current in the casing 1 into the air exhaust channel 21, the inner wall of the air exhaust channel 21 is provided with an air exhaust motor 22 used for driving the air exhaust fan blade 23 to rotate, the rotating air exhaust fan blade 23 causes the air current in the casing 1 to be introduced into the air exhaust channel 21, and the air current in the air exhaust channel 21 is exhausted through the opening thereof; the opening of the exhaust channel 21 is also provided with a protective screen 25 to prevent flying insects from entering the housing 1.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The LED switch power supply with the heat dissipation air path is characterized by comprising a shell (1) and a circuit board assembly (12) which is suspended along the central axis of the shell (1) through an outer support rod (6), wherein one end of the shell (1) is provided with an air guiding part, and the other end of the shell (1) is provided with an air exhausting part; a flow guide part linked with the air guide part is also arranged in the shell (1);
the flow guide part comprises a first rotating disc (5) which is rotatably arranged in an inner cavity at one end of the shell (1) and is positioned between the air guide part and the circuit board assembly (12), wherein one end of the first rotating disc (5) is provided with a first air guide opening (19) in a penetrating manner;
the flow guide part also comprises a second rotating disk (13) which is rotatably arranged in an inner cavity at the other end of the shell (1) and is positioned between the air exhaust part and the circuit board assembly (12), and one end of the second rotating disk (13) is provided with a second air induction opening (20) in a penetrating manner;
a rotating shaft assembly penetrating through the circuit board assembly (12) is rotatably arranged in the shell (1) along the central axis thereof;
the shell (1) is also provided with a driving motor (14) for driving the rotating shaft assembly to rotate;
and a third rotating shaft (9) arranged in the circuit board assembly (12) is fixedly provided with a flow guide fan blade (11) used for pushing the airflow of the air guide part to the air exhaust part.
2. The LED switching power supply with the cooling air duct according to claim 1, wherein the rotation shaft assembly comprises a first rotation shaft (7) linked with the air guide portion, a second rotation shaft (18) fixedly arranged along a central axis of the first rotation disk (5), a third rotation shaft (9) rotatably arranged through an inner support rod (10) along the central axis of the circuit board assembly (12), and a fourth rotation shaft (15) fixedly arranged along the central axis of the second rotation disk (13).
3. The LED switch power supply with the cooling air path as claimed in claim 2, wherein the first rotating shaft (7) and the second rotating shaft (18) are in transmission connection through a first transmission (8); the second rotating shaft (18) is in transmission connection with the third rotating shaft (9) through a second transmission (17); the third rotating shaft (9) and the fourth rotating shaft (15) are in transmission connection through a third speed changer (16).
4. The LED switch power supply with the cooling air path as claimed in claim 2 or 3, wherein the first air inlet (19) and the second air inlet (20) are always arranged in a diagonal distribution under the linkage action of a rotating shaft assembly with a third transmission (16) and a second transmission (17).
5. The LED switch power supply with the cooling air path according to claim 3, wherein the first transmission (8) and the third transmission (16) are speed increasers; the second transmission (17) is a reduction gear.
6. The LED switch power supply with the cooling air path as claimed in claim 4, wherein the driving motor (14) is fixedly installed on the inner wall of the air exhaust end of the casing (1), and the output shaft of the driving motor (14) is in driving connection with the other end of the fourth rotating shaft (15) through a coupling.
7. The LED switch power supply with the cooling air path according to claim 4, wherein the air inlet (2) is arranged at the induced air end of the housing (1), the air inlet fan blade (3) included in the induced air part is rotatably erected in the air inlet (2), and the air inlet fan blade (3) is linked with the first rotating shaft (7) in a chain wheel transmission manner;
the air inlet end of the air inlet (2) is provided with an air inlet filter screen (4) for filtering air flow.
8. The LED switch power supply with the cooling air path according to claim 7, wherein the outer wall of the air outlet end of the casing (1) is provided with a communication hole (24), and the outer ring of the air outlet end of the casing (1) is provided with an air exhaust channel (21) communicated with the inner cavity of the casing (1) through the communication hole (24);
the air exhaust part comprises an exhaust fan blade (23) which is rotatably erected in the communicating hole (24) and is used for introducing air flow in the shell (1) into the air exhaust channel (21), and an exhaust motor (22) used for driving the exhaust fan blade (23) to rotate is mounted on the inner wall of the air exhaust channel (21); the opening of the air exhaust channel (21) is also provided with a protective filter screen (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910866831.XA CN110545027B (en) | 2019-09-12 | 2019-09-12 | LED switching power supply with heat dissipation wind path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910866831.XA CN110545027B (en) | 2019-09-12 | 2019-09-12 | LED switching power supply with heat dissipation wind path |
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| Publication Number | Publication Date |
|---|---|
| CN110545027A CN110545027A (en) | 2019-12-06 |
| CN110545027B true CN110545027B (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910866831.XA Active CN110545027B (en) | 2019-09-12 | 2019-09-12 | LED switching power supply with heat dissipation wind path |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207346A (en) * | 2020-01-13 | 2020-05-29 | 苏州本末智能科技有限公司 | Street lamp device capable of quickly reducing temperature of LED light source board body |
| CN111288402A (en) * | 2020-02-12 | 2020-06-16 | 苏州本末智能科技有限公司 | LED street lamp with heat dissipation type lamp holder for municipal road lighting |
| CN112276430B (en) * | 2020-12-30 | 2021-08-03 | 浙江兴益风机电器有限公司 | Electric welding with good thermal diffusivity |
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| JP2004200344A (en) * | 2002-12-18 | 2004-07-15 | Fujitsu Ltd | Communication apparatus, cooling fan unit, and its operation control method |
| CN101803486A (en) * | 2007-09-12 | 2010-08-11 | Ssb-驱动技术两合有限公司 | Switchgear cabinet for a wind farm |
| CN208001425U (en) * | 2018-04-02 | 2018-10-23 | 广西丹斯电气设备有限公司 | A kind of electrical control cabinet convenient for safeguarding |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765354A (en) * | 2009-09-16 | 2010-06-30 | 苏州工业园区胜欣电子有限公司 | Heat radiator of network advertising machine |
| CN102036532B (en) * | 2009-09-24 | 2014-11-12 | 建准电机工业股份有限公司 | Radiating device |
| JP2011167049A (en) * | 2010-02-15 | 2011-08-25 | Denso Corp | Power conversion apparatus |
| US8942020B2 (en) * | 2012-06-22 | 2015-01-27 | General Electric Company | Three-level phase leg for a power converter |
| CN208509308U (en) * | 2017-12-29 | 2019-02-15 | 中山市金兴智能技术有限公司 | A kind of LED switch power supply with heat dissipation wind path |
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2019
- 2019-09-12 CN CN201910866831.XA patent/CN110545027B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004200344A (en) * | 2002-12-18 | 2004-07-15 | Fujitsu Ltd | Communication apparatus, cooling fan unit, and its operation control method |
| CN101803486A (en) * | 2007-09-12 | 2010-08-11 | Ssb-驱动技术两合有限公司 | Switchgear cabinet for a wind farm |
| CN208001425U (en) * | 2018-04-02 | 2018-10-23 | 广西丹斯电气设备有限公司 | A kind of electrical control cabinet convenient for safeguarding |
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| CN110545027A (en) | 2019-12-06 |
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