CN207518464U - A kind of Switching Power Supply - Google Patents
A kind of Switching Power Supply Download PDFInfo
- Publication number
- CN207518464U CN207518464U CN201721619510.2U CN201721619510U CN207518464U CN 207518464 U CN207518464 U CN 207518464U CN 201721619510 U CN201721619510 U CN 201721619510U CN 207518464 U CN207518464 U CN 207518464U
- Authority
- CN
- China
- Prior art keywords
- switching power
- power supply
- circuit
- voltage
- output terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of Switching Power Supplies, and including switching power circuit, Switching Power Supply box and radiator, Switching Power Supply box includes box body and the cover board with box body clamping, and cover board is equipped with several perforation, and perforation is equipped with thin plate；Switching power circuit includes input circuit, control chip, transformer, Voltage stabilizing module and voltage-stable transistor, input circuit connection control chip, the power take-off of one end connection control chip of the primary coil of transformer, first output terminal of the other end of transformer as switching power circuit, the second output terminal of one end of transformer secondary coil as switching power circuit；The input terminal of Voltage stabilizing module and the anode of voltage-stable transistor are connected to the second output terminal of switching power circuit, the first output terminal of the cathode connecting valve power circuit of voltage-stable transistor.The utility model facilitates installation and wiring, can accelerated heat distribute.
Description
Technical field
The utility model is related to electric power more particularly to a kind of Switching Power Supplies.
Background technology
Nowadays, with the development of telling of Power Electronic Technique, the work of power electronic equipment and people, the relationship day of life
It is beneficial close, and electronic equipment all be unable to do without reliable voltage.Switching Power Supply is using modern power electronics technology, by controlling work(
The time ratio (duty ratio) of rate switching tube turn-on and turn-off, maintains a kind of cinema stabilized the output voltage.Switching Power Supply with
Small-sized, light weight and efficient feature are widely used in various electronic equipments, are current electronics and information industry rapid developments
A kind of indispensable power supply.With the development and innovation of electron electric power so that switch power technology is also constantly being innovated.
However most of existing Switching Power Supply heat dissipation is by the way of natural heat dissipation, and heat emission hole is set in housing, according to
Make its cooling by air flowing.This cooling rate is slow.Still further aspect, existing Switching Power Supply box be sealing structure, wiring
Trouble.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Switching Power Supplies, can solve
The problem of prior art poor heat radiation, wiring trouble.
The purpose of this utility model is realized using following technical scheme：
A kind of Switching Power Supply, including switching power circuit, Switching Power Supply box and radiator, switching power circuit and heat dissipation
Device is mounted in Switching Power Supply box；The Switching Power Supply box includes box body and the cover board with box body clamping, and cover board is set
There are several perforation, each perforation is equipped with the thin plate of closing perforation, and gauge of sheet is less than the thickness of cover board；Switching power circuit
Including input circuit, control chip, transformer, Voltage stabilizing module and voltage-stable transistor, input circuit connection control chip, transformer
Primary coil one end connection control chip power take-off, the other end of transformer is as switch power supply
First output terminal on road, the second output terminal of one end of transformer secondary coil as switching power circuit；Voltage stabilizing module it is defeated
The anode for entering end and voltage-stable transistor is connected to the second output terminal of switching power circuit, the cathode connecting valve of voltage-stable transistor
First output terminal of power circuit.
Preferably, the box body includes bottom plate and four blocks of side plates being vertically arranged on bottom plate, and four blocks of side plates enclose connect successively.
Preferably, the side plate is welded on bottom plate.
Preferably, the bottom plate is equipped at least one connector lug.
Preferably, the radiator includes mounting temperature sensor, controller and fan, and temperature sensor is mounted on box
In vivo, fan is mounted on the side wall of box body, temperature sensor connection controller.
Preferably, display screen, display screen connection controller are additionally provided on box body.
Preferably, the fan is bladeless fan, which includes fan ring and main body, the medial surface for fanning ring are equipped with out
Air port, the side of main body are equipped with air inlet.
Compared with prior art, the beneficial effects of the utility model are：
It can be dismantled between the box body and cover of the utility model, facilitate installation and wiring, when needing, will perforated corresponding
Thin plate, which firmly presses, makes it come off, so as to which lead can be by being pierced by；In radiator built in box body, accelerated heat dissipates
Hair；It can ensure the direct current of output burning voltage.
Description of the drawings
Fig. 1 is a kind of structure diagram of Switching Power Supply of the utility model；
Fig. 2 is a kind of circuit structure diagram of Switching Power Supply of the utility model.
In figure：1st, box body；2nd, cover board；3rd, thin plate；4th, display screen；5th, ring is fanned；6th, main body；7th, air outlet.
Specific embodiment
In the following, with reference to attached drawing and specific embodiment, the utility model is described further：
As depicted in figs. 1 and 2, the utility model provides a kind of Switching Power Supply, including switching power circuit, Switching Power Supply
Box and radiator.Switching power circuit and radiator therein are mounted in Switching Power Supply box.
The dimension of subsequent parts is placed and facilitated to the installation of the components such as switching power circuit, radiator for convenience
It repaiies, conducting wire connection etc., the Switching Power Supply box of the utility model includes box body and the cover board with box body clamping, and cover board is equipped with
Several perforation, each perforation are equipped with the thin plate of closing perforation, and gauge of sheet is less than the thickness of cover board.Therefore when needs and outside
When the device in portion is connected by conducting wire, it is only necessary to press thin plate, thin plate made to come off, conducting wire can from perforation across.
Box body specifically includes bottom plate and four blocks of side plates being vertically arranged on bottom plate, and four blocks of side plates enclose connect successively.Side plate is equal
It is welded on bottom plate.Bottom plate is equipped at least one connector lug.Wiring can be carried out by connector lug with external device to connect.
Switching power circuit includes input circuit, control chip, transformer T, Voltage stabilizing module and voltage-stable transistor D, input
Circuit connection control chip, the power take-off of one end connection control chip of the primary coil of transformer, transformer T primary lines
First output terminals A of the other end of circle as switching power circuit, one end of transformer T secondary coils is as switching power circuit
Second output terminal B；The input terminal of Voltage stabilizing module and the anode of voltage-stable transistor D are connected to the second output of switching power circuit
End, the first output terminal of the cathode connecting valve power circuit of voltage-stable transistor D.
Since the output power of the second output terminal in switching power circuit is larger, and the first output of switching power circuit
When the output power at end is smaller, the output voltage of the second output terminal of switching power circuit (for ease of illustrating, is carried out with V below
Illustrate) it can be pulled low, and by the way that the anode of voltage-stable transistor is set to be connected to the second output terminal of switching power circuit, and voltage stabilizing
The cathode of transistor is connected to the first output terminal of switching power circuit so that when V is reduced, the first of switching power circuit is defeated
Outlet can charge to the second output terminal of switching power circuit, while but also the electric current in the primary circuit of transformer increases
Greatly, and then V can be improved, in the range of V is limited to the minimum input voltage more than or equal to Voltage stabilizing module, realized to V's
Automatic adjustment, it is ensured that Voltage stabilizing module exports stable DC；Simultaneously as the raising of V, can also improve switching power circuit
The output power of second output terminal avoids the output power of the second output terminal 5 of switch power supply current smaller and increases voltage stabilizing mould
The consume of block, advantageously reduces stand-by power consumption.Wherein, voltage-stable transistor can be zener diode, and transformer can be high frequency
Transformer.
As preferred embodiment, radiator includes mounting temperature sensor, controller and fan, temperature sensor
In box body, fan is mounted on the side wall of box body, temperature sensor connection controller.Display screen is additionally provided on box body, is shown
Display screen connects controller.Further, fan is bladeless fan, which includes fan ring and main body, fans the medial surface of ring
Equipped with air outlet, the side of main body is equipped with air inlet.Bladeless fan is selected to cause the noise smaller of radiator, does not influence to switch
The use of power supply.Gas enters in fan ring finally to be blown out at a high speed from air outlet, what display screen can be detected with displays temperature sensor
Temperature inside Switching Power Supply.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make other various
Corresponding change and deformation, and all these changes and deformation should all belong to the protection of the utility model claims
Within the scope of.
Claims (7)
1. a kind of Switching Power Supply, which is characterized in that including switching power circuit, Switching Power Supply box and radiator, Switching Power Supply
Circuit and radiator are mounted in Switching Power Supply box；The Switching Power Supply box includes box body and the cover board with box body clamping, lid
Plate is equipped with several perforation, each perforation is equipped with the thin plate of closing perforation, and gauge of sheet is less than the thickness of cover board；It opens
Powered-down source circuit includes input circuit, control chip, transformer, Voltage stabilizing module and voltage-stable transistor, input circuit connection control
Chip, the power take-off of one end connection control chip of the primary coil of transformer, the other end of transformer are made
For the first output terminal of switching power circuit, the second output terminal of one end of transformer secondary coil as switching power circuit；
The input terminal of Voltage stabilizing module and the anode of voltage-stable transistor are connected to the second output terminal of switching power circuit, voltage-stable transistor
First output terminal of cathode connecting valve power circuit.
2. Switching Power Supply as described in claim 1, which is characterized in that the box body includes bottom plate and is vertically arranged on bottom plate
Four blocks of side plates, four blocks of side plates enclose connect successively.
3. Switching Power Supply as claimed in claim 2, which is characterized in that the side plate is welded on bottom plate.
4. Switching Power Supply as claimed in claim 3, which is characterized in that the bottom plate is equipped at least one connector lug.
5. Switching Power Supply as described in claim 1, which is characterized in that the radiator includes temperature sensor, controller
And fan, temperature sensor are mounted in box body, fan is mounted on the side wall of box body, temperature sensor connection controller.
6. Switching Power Supply as claimed in claim 5, which is characterized in that display screen, display screen connection control are additionally provided on box body
Device.
7. Switching Power Supply as claimed in claim 5, which is characterized in that the fan is bladeless fan, which includes
Ring and main body are fanned, the medial surface for fanning ring is equipped with air outlet, and the side of main body is equipped with air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619510.2U CN207518464U (en) | 2017-11-28 | 2017-11-28 | A kind of Switching Power Supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619510.2U CN207518464U (en) | 2017-11-28 | 2017-11-28 | A kind of Switching Power Supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207518464U true CN207518464U (en) | 2018-06-19 |
Family
ID=62541701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721619510.2U Expired - Fee Related CN207518464U (en) | 2017-11-28 | 2017-11-28 | A kind of Switching Power Supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207518464U (en) |
-
2017
- 2017-11-28 CN CN201721619510.2U patent/CN207518464U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20201128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |