CN204993956U - LED drive power supply with heat radiation structure - Google Patents
LED drive power supply with heat radiation structure Download PDFInfo
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- CN204993956U CN204993956U CN201520496391.0U CN201520496391U CN204993956U CN 204993956 U CN204993956 U CN 204993956U CN 201520496391 U CN201520496391 U CN 201520496391U CN 204993956 U CN204993956 U CN 204993956U
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- voltage
- circuit board
- input
- electrically connected
- drive power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a LED drive power supply with heat radiation structure, this drive power supply include casing and circuit board, and the casing includes first curb plate, second side and radiating bottom plate, and form a centre gripping groove behind the three fixed connection, this centre gripping inslot and centre gripping are arranged in between first curb plate and second curb plate to the circuit board, be equipped with electronic components on the circuit board up end, and form a heat dissipation space under this circuit board between terminal surface and the bottom plate, install a plurality of fans in this heat dissipation space, still install input and the electric controller of being connected of power input end, output and a plurality of fan electrically connected of controller on the circuit board, and the shaping has a plurality of air convection holes on the radiating bottom plate. The utility model discloses have a fan in that the heat dissipation space is built -in, the controller can hold power work whether to come opening or closing of automatic control fan according to the power input, has improved the radiating effect, need not artificially to control the switch of fan in addition, has made things convenient for operation and can be energy -concerving and environment -protective.
Description
Technical field
The utility model relates to power technique fields, particularly relates to a kind of LED drive power with radiator structure.
Background technology
LED, as a kind of new illumination light source, is obtaining extensive and interior application on a large scale gradually; Determine that the performance of LED and the core in life-span are LED drive power, the stability of life-span of LED, luminance decay and drive current and current ripples or noise are closely bound up.LED drive power is that power supply supply is converted to specific electric current and voltage with the electric pressure converter of driving LED luminescence.
For making driving power can obtain good insulation protection in prior art, normally driving power being assemblied in the cavity of a sealing, being so extremely unfavorable for the heat radiation of driving power.
Utility model content
For the weak point existed in above-mentioned technology, the utility model provides the LED drive power with radiator structure of the large and good heat dissipation effect of a kind of reasonable in design, use safety, heat-dissipating space.
For achieving the above object, the utility model provides a kind of LED drive power with radiator structure, comprise housing and circuit board, described housing comprises the first side plate, second side and radiating bottom plate, described first side plate and second side removably connect with radiating bottom plate respectively, and three is fixedly connected with rear formation holding tank; Described circuit board to be placed in this holding tank and to be clamped between the first side plate and the second side plate; Described circuit board upper surface is provided with electronic devices and components, and forms a heat-dissipating space between this circuit board lower surface and base plate; Be provided with multiple fan in this heat-dissipating space, described circuit board be also installed on the controller that input is electrically connected with power input, the output of described controller is electrically connected with multiple fan; And described radiating bottom plate forms multiple cross-ventilation hole.
Wherein, described radiating bottom plate upper punch is pressed with multiple parting bead longitudinally arranged, and often forms this cross-ventilation hole between adjacent two parting beads.
Wherein, described electronic devices and components comprise filter-rectifier, pwm chip, mos pipe, high frequency transformer and rectification circuit; The input of described filter-rectifier and pwm chip, and described mos pipe is electrically connected with the output of pwm chip, described mos pipe is electrically connected with the input of high frequency transformer, and the output of described high frequency transformer is by being electrically connected with load after rectification circuit and power output end; The input ac voltage of power input forms high-voltage dc voltage after rectifier filter rectification after filtering, this high-voltage dc voltage is successively by exporting low-voltage dc voltage after pwm chip, mos pipe, high frequency transformer and rectification circuit, and this low-voltage dc voltage exports and exports load to by power output end.
Wherein, described rectification circuit comprises magnet ring and Schottky diode, and described magnet ring and Schottky diode are in series, and the output of described high frequency transformer and magnet ring are electrically connected.
Wherein, between described filter-rectifier and pwm chip, be electrically connected with input filter capacitor, between described Schottky diode and power output end, be connected with output filter capacitor.
The beneficial effects of the utility model are: compared with prior art, the LED drive power of what the utility model provided have radiator structure, when circuit board is installed in housing, circuit board is not directly installed on the base plate of housing, but a heat-dissipating space is formed between circuit board lower surface and base plate, the design of this heat-dissipating space, increases area of dissipation; Meanwhile, at heat-dissipating space built with fan, whether controller can carry out automatically to control opening or closing of fan according to power input power work, the improvement of this structure, not only further increase radiating effect, and without the need to the switch of manual control fan, facilitate operation and can save energy environmental protection.The utility model has the features such as reasonable in design, simple operation, use safety, area of dissipation are large, good heat dissipation effect.
Accompanying drawing explanation
Fig. 1 is the vertical view with the LED drive power of radiator structure of the present utility model;
Fig. 2 is the upward view with the LED drive power of radiator structure of the present utility model;
Fig. 3 is the working envelope figure with radiator structure of the present utility model.
Main element symbol description is as follows:
1, housing 2, circuit board
3, electronic devices and components 4, fan
5, controller 6, load
11, the first side plate 12, second side
13, radiating bottom plate 31, filter-rectifier
32, pwm chip 33, mos pipe
34, high frequency transformer 35, rectification circuit
36, input filter capacitor 37, output filter capacitor
38, power input 39, power output end
131, cross-ventilation hole 132, parting bead
351, magnet ring 352, Schottky diode.
Embodiment
In order to more clearly state the utility model, below in conjunction with accompanying drawing, the utility model is further described.
Refer to Fig. 1-3, the LED drive power with radiator structure of the present utility model, comprise housing 1 and circuit board 2, housing 1 comprises the first side plate 11, second side 12 and radiating bottom plate 13, first side plate 11 and second side 12 removably connect with radiating bottom plate 13 respectively, and three is fixedly connected with rear formation holding tank; Circuit board 2 to be placed in this holding tank and to be clamped between the first side plate 11 and the second side plate 12; Circuit board 2 upper surface is provided with electronic devices and components 3, and forms a heat-dissipating space between this circuit board 2 lower surface and base plate; Be provided with multiple fan 4 in this heat-dissipating space, circuit board 2 be also installed on the controller 5 that input is electrically connected with power input 38, the output of controller 5 is electrically connected with multiple fan 4; And radiating bottom plate 13 forms multiple cross-ventilation hole 131.
Compared to the situation of prior art, the LED drive power of what the utility model provided have radiator structure, when circuit board 2 is installed in housing, circuit board is not directly installed on the base plate of housing, but a heat-dissipating space is formed between circuit board 2 lower surface and base plate, the design of this heat-dissipating space, increases area of dissipation; Meanwhile, at heat-dissipating space built with fan 4, whether controller 5 can carry out automatically to control opening or closing of fan 4 according to power input 38 power work, the improvement of this structure, not only further increase radiating effect, and without the need to the switch of manual control fan, facilitate operation and can save energy environmental protection.The utility model has the features such as reasonable in design, simple operation, use safety, area of dissipation are large, good heat dissipation effect.
In the present embodiment, radiating bottom plate 13 upper punch is pressed with multiple parting bead 132 longitudinally arranged, and often forms this cross-ventilation hole 131 between adjacent two parting beads 132.Direct punching press cross-ventilation hole on radiating bottom plate in this structure, circuit board and electronic devices and components are operationally, the heat of generation is passed to radiating bottom plate by fan, air-flow flows out from cross-ventilation hole 131, and the air of heating outwards distributes, and cold air supplements simultaneously, formation cross-ventilation circulates, the heat that improve radiating bottom plate changes efficiency, carries out heat exchange rapidly, reach fabulous radiating effect with air.Shape and the quantity in parting bead and cross-ventilation hole is not limited in this case.
In the present embodiment, electronic devices and components 3 comprise filter-rectifier 31, pwm chip 32, mos pipe 33, high frequency transformer 34 and rectification circuit 35; The input of filter-rectifier 31 and pwm chip 32, and mos pipe 33 is electrically connected with the output of pwm chip 32, mos pipe 33 is electrically connected with the input of high frequency transformer 34, and the output of high frequency transformer 34 is by being electrically connected with load 6 after rectification circuit 35 and power output end 39; The input ac voltage of power input 38 forms high-voltage dc voltage after rectifier 31 filter rectification after filtering, this high-voltage dc voltage is successively by exporting low-voltage dc voltage after pwm chip 32, mos pipe 33, high frequency transformer 34 and rectification circuit 35, and this low-voltage dc voltage exports and exports load 6 to by power output end 39.By on a circuit board integrated to filter-rectifier 31, pwm chip 32, mos pipe 33, high frequency transformer 34 and rectification circuit 35 in this structure, define integrated design, to reach the effect that volume is little, reliability is high and cost is low; Simultaneously, rectifier 31, pwm chip 32, mos pipe 33, high frequency transformer 34 and rectification circuit 35 obtain low-voltage dc voltage after processing to the voltage signal of input after filtering successively, this low-voltage dc voltage powering load, this low-voltage dc voltage finally obtained obtains good process, the loss in transmitting procedure can be reduced and avoid occurring vibration, making voltage signal more stable.
In the present embodiment, rectification circuit 35 comprises magnet ring 351 and Schottky diode 352, and magnet ring 351 and Schottky diode 352 are in series, and the output of high frequency transformer 34 and magnet ring 351 are electrically connected.Magnet ring 351 is Sendust Cores, certainly, can also be the magnet ring of other types.The surface of this Sendust Cores is wound with filter inductance line, filter inductance line makes the filter effect of this magnet ring better.
In the present embodiment, between filter-rectifier 31 and pwm chip 32, be electrically connected with input filter capacitor 36, between Schottky diode 352 and power output end 39, be connected with output filter capacitor 37.The input ac voltage of power input 38 forms this high-voltage dc voltage after carrying out filtering by input filter capacitor 36 again after rectifier 31 filter rectification after filtering; Input filter capacitor 36 improves the filter effect of voltage transmission.Low-voltage dc voltage exports power output end 39 to after carrying out filtering by output filter capacitor 37 again.In this structure, output filter capacitor presents very little capacitive reactance to radio-frequency component, to reach the effect suppressing ripple and smooth direct current in circuit, makes the power supply signal of output more stable.
The LED drive power of what the utility model provided have radiator structure, the operation principle of its electronic devices and components 3 is: power input input AC170V-240V carries out by input filter capacitor the direct voltage that filtering becomes about 290V after rectifier after filtering again, managed by pwm chip control mos, mos pipe goes to control high frequency transformer again, high frequency transformer outputs to magnet ring through Schottky diode, just exports the direct voltage of 12V after further rectification after output filter capacitor.
Be only several specific embodiment of the present utility model above, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection range of the present utility model.
Claims (5)
1. one kind has the LED drive power of radiator structure, it is characterized in that, comprise housing and circuit board, described housing comprises the first side plate, second side and radiating bottom plate, described first side plate and second side removably connect with radiating bottom plate respectively, and three is fixedly connected with rear formation holding tank; Described circuit board to be placed in this holding tank and to be clamped between the first side plate and the second side plate; Described circuit board upper surface is provided with electronic devices and components, and forms a heat-dissipating space between this circuit board lower surface and base plate; Be provided with multiple fan in this heat-dissipating space, described circuit board be also installed on the controller that input is electrically connected with power input, the output of described controller is electrically connected with multiple fan; And described radiating bottom plate forms multiple cross-ventilation hole.
2. the LED drive power with radiator structure according to claim 1, is characterized in that, described radiating bottom plate upper punch is pressed with multiple parting bead longitudinally arranged, and often forms this cross-ventilation hole between adjacent two parting beads.
3. the LED drive power with radiator structure according to claim 1, is characterized in that, described electronic devices and components comprise filter-rectifier, pwm chip, mos pipe, high frequency transformer and rectification circuit; The input of described filter-rectifier and pwm chip, and described mos pipe is electrically connected with the output of pwm chip, described mos pipe is electrically connected with the input of high frequency transformer, and the output of described high frequency transformer is by being electrically connected with load after rectification circuit and power output end; The input ac voltage of power input forms high-voltage dc voltage after rectifier filter rectification after filtering, this high-voltage dc voltage is successively by exporting low-voltage dc voltage after pwm chip, mos pipe, high frequency transformer and rectification circuit, and this low-voltage dc voltage exports and exports load to by power output end.
4. the LED drive power with radiator structure according to claim 3, it is characterized in that, described rectification circuit comprises magnet ring and Schottky diode, and described magnet ring and Schottky diode are in series, and the output of described high frequency transformer and magnet ring are electrically connected.
5. the LED drive power with radiator structure according to claim 4, it is characterized in that, be electrically connected with input filter capacitor between described filter-rectifier and pwm chip, between described Schottky diode and power output end, be connected with output filter capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496391.0U CN204993956U (en) | 2015-07-10 | 2015-07-10 | LED drive power supply with heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520496391.0U CN204993956U (en) | 2015-07-10 | 2015-07-10 | LED drive power supply with heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204993956U true CN204993956U (en) | 2016-01-20 |
Family
ID=55128272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520496391.0U Expired - Fee Related CN204993956U (en) | 2015-07-10 | 2015-07-10 | LED drive power supply with heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204993956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233734A (en) * | 2018-02-28 | 2018-06-29 | 湖州旭源电气科技有限公司 | A kind of air-cooled high-power high-frequency switch power supply voltage transforming rectifier |
-
2015
- 2015-07-10 CN CN201520496391.0U patent/CN204993956U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233734A (en) * | 2018-02-28 | 2018-06-29 | 湖州旭源电气科技有限公司 | A kind of air-cooled high-power high-frequency switch power supply voltage transforming rectifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20170710 |