CN206481227U - A kind of power supply adaptor - Google Patents
A kind of power supply adaptor Download PDFInfo
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- CN206481227U CN206481227U CN201720162722.6U CN201720162722U CN206481227U CN 206481227 U CN206481227 U CN 206481227U CN 201720162722 U CN201720162722 U CN 201720162722U CN 206481227 U CN206481227 U CN 206481227U
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- unit
- pwm controller
- power supply
- positioning convex
- resistance
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Abstract
The utility model discloses a kind of power supply adaptor, it includes housing and the end cap being fixed on housing and the pcb board being fixed in the storage tank of housing, first is integrally fixed with end cap, second metal insert, first, second metal insert is electrically connected with pcb board, some supporting plates for being used to support pcb board are formed in the storage tank of housing, and the storage tank is internally provided with the positioning convex strip of a plurality of genesis analysis, positioning convex strip is located above supporting plate, protruded in the middle part of the positioning convex strip, and the positioning convex strip upper end has lead-in chamfered, the positioning convex strip lower end has the spacing inclined-plane for being used for limiting pcb board.When pcb board is in the storage tank for be fitted into housing in the utility model, first constantly it is embedded in downwards along the lead-in chamfered of positioning convex strip, after the projection through in the middle part of positioning convex strip, the pcb board outer rim falls into the spacing inclined-plane of positioning convex strip, so that spacing inclined-plane limits pcb board, without screw locking, assemble up and more facilitate, to improve the market competitiveness of the present utility model.
Description
Technical field：
The utility model is related to a kind of power supply adaptor.
Background technology：
Power supply adaptor (Power adapter) is called external power supply, is small portable electronic device and electronic apparatus
Power supply conversion equipment, be typically made up of shell, transformer, inductance, electric capacity, the control component such as IC, PCB plate, it
Operation principle is converted to direct current output by exchange input；It can be divided into Direct Plug-In and Table top type by connected mode.Power supply adaptor is wide
General security protection camera, set top box, router, lamp bar, massage device, mobile phone, liquid crystal display and notebook computer etc. of being matched in is set
In standby.
Power supply adaptor of the prior art includes housing and the end cap being fixed on housing and the appearance for being fixed on housing
The pcb board in groove is put, and enclosure interior is provided with threaded post, and pcb board is locked in by threaded post by screw, this Standard
Get up relatively complicated, dismounting not enough facilitates.
In view of this, the present inventor proposes following technical scheme.
Utility model content：
The purpose of this utility model is to overcome the deficiencies in the prior art that there is provided a kind of power supply adaptor.
In order to solve the above-mentioned technical problem, the utility model employs following technical proposals：The power supply adaptor includes shell
Body and the end cap being fixed on housing and the pcb board being fixed in the storage tank of housing, wherein, integrally it is fixed with the end cap
First, second metal insert, first, second metal insert is electrically connected with pcb board, is formed in the storage tank of the housing
Some supporting plates for being used to support pcb board, and the storage tank is internally provided with the positioning convex strip of a plurality of genesis analysis, the positioning
Raised line is located above supporting plate, wherein, protruded in the middle part of the positioning convex strip, and the positioning convex strip upper end has lead-in chamfered, this is determined
Position raised line lower end has the spacing inclined-plane for being used for limiting PCB plates.
Furthermore, in above-mentioned technical proposal, the housing upper end is provided with annular groove and two are located at annular groove
Side and in the positioning convex column that is diagonally distributed；The end cap lower end forms the annular flange being adapted to the annular groove, and the ring
Ultrasonic wave molten thread is also formed on shape flange；The end cap lower end shaping is additionally provided with the positioning for being adapted to positioning convex column
Groove.
Furthermore, in above-mentioned technical proposal, the pcb board includes：AC input unit, rectification unit, input filter
Unit, transformer, PWM controller unit, output filter unit and DC output units, it is the AC input blocks, rectification unit, defeated
Enter filter unit, transformer, output filter unit and DC output units to be sequentially connected, PWM controller unit connection transformer
To control transformer output voltage, it is also associated with sampling feedback unit between the PWM controller unit and DC output units, should
Sampling feedback unit includes the controllable accurate source of stable pressure and photoelectricity coupling being connected between PWM controller units and DC output units
Clutch and the first peripheral circuit.
Furthermore, in above-mentioned technical proposal, the input filter unit, which includes, is connected to rectification unit and transformation
Inductance L1 between armature winding in device and the electrochemical capacitor C1, the electrochemical capacitor C2 that are connected with inductance L1 and parallel with one another
In electric capacity C3, resistance R1 and the diode D5 being connected with resistance R1, diode D5 negative electrode connection transformer it is primary around
Group and PWM controller unit.
Furthermore, in above-mentioned technical proposal, the PWM controller unit includes PWM controller chip and setting
In PWM controller chip periphery and for the power supply unit to PWM controller chip power supply, the described change of power supply unit connection
Depressor, the 1st pin of the PWM controller chip is connected to be grounded after the parallel circuit being made up of electric capacity C6 and electrochemical capacitor C5, should
PWM controller chip the 2nd, 3,7,8 pin ground connection, and connect the sampling feedback unit, the 4th pin of the PWM controller chip
Photoelectrical coupler is connected, the 5th pin of the PWM controller chip connects the armature winding in the transformer.
Furthermore, in above-mentioned technical proposal, it is provided with the output filter unit for preventing output overvoltage
Overvoltage protection diode ZD2.
Furthermore, in above-mentioned technical proposal, the output filter unit, which includes, is connected to transformer and DC outputs
Schottky diode D7 and inductance L2 and electrochemical capacitor C9, electrochemical capacitor C10, electric capacity C11 between unit, the Schottky two
Pole pipe D7 two ends are connected in parallel to resistance R6 and electric capacity C6.
Furthermore, in above-mentioned technical proposal, first peripheral circuit include be connected to controllable accurate source of stable pressure and
Resistance R7, resistance R8, electric capacity C12, resistance R9, resistance R10, electric capacity CY1, the electric capacity CY2, the resistance of photoelectrical coupler periphery
R7, resistance R9 are connected to inductance L2 two ends.
Furthermore, in above-mentioned technical proposal, the model TL431 of the controllable accurate source of stable pressure.
Furthermore, in above-mentioned technical proposal, the model PC123 of the photoelectrical coupler.
After adopting the above technical scheme, the utility model has the advantages that compared with prior art：This practicality
When new middle pcb board is in the storage tank for be fitted into housing, first be constantly embedded in downwards along the lead-in chamfered of positioning convex strip, through
In the middle part of positioning convex strip after projection, the pcb board outer rim falls into the spacing inclined-plane of positioning convex strip, so that the spacing inclined-plane is limited
Pcb board, without screw locking, assembles up and more facilitates, to improve the market competitiveness of the present utility model.
Brief description of the drawings：
Fig. 1 is the circuit diagram of the utility model pcb board；
Fig. 2 is the functional-block diagram of the utility model pcb board；
Fig. 3 is stereogram of the present utility model；
Fig. 4 is three-dimensional exploded view of the present utility model；
Fig. 5 is the stereogram of end cap in the utility model.
Embodiment：
The utility model is further illustrated with reference to specific embodiments and the drawings.
It is a kind of power supply adaptor as shown in Fig. 3-5, its He of end cap 92 for including housing 91 and being fixed on housing 91
The pcb board 93 being fixed in the storage tank 911 of housing 91, wherein, integrally it is fixed with first, second metal insert on the end cap 92
95th, 96, first, second metal insert 95,96 is electrically connected with pcb board 93, wherein, the upper end of housing 91 is provided with ring
Shape groove 912 and two are located at the side of annular groove 912 and in the positioning convex column 913 being diagonally distributed；The lower end of end cap 92 shaping
Have and also form ultrasonic wave molten thread 922 in the annular flange 921 being adapted to the annular groove 912, and the annular flange 921, should
Ultrasonic wave molten thread 922 is melted in annular groove 912 by ultrasonic wave, to form a fixed connection；The lower end of end cap 92 shaping is also
It is provided with the locating slot 923 for being adapted to positioning convex column 913.
Some supporting plates 97 for being used to support pcb board 93, and the storage tank are formed in the storage tank 911 of the housing 91
911 are internally provided with the positioning convex strip 98 of a plurality of genesis analysis, and the positioning convex strip 98 is located at the top of supporting plate 97, wherein, should
The middle part of positioning convex strip 98 is protruded, and the upper end of positioning convex strip 98 has lead-in chamfered 981, and the lower end of positioning convex strip 98, which has, to be used for
The spacing inclined-plane 982 of pcb board 93 is limited, during causing the pcb board 93 in the storage tank 911 for be fitted into housing 91, first along fixed
The lead-in chamfered 981 of position raised line 98 is constantly embedded downwards, through after the middle part projection of positioning convex strip 98, outside the pcb board 93
Edge falls into the spacing inclined-plane 982 of positioning convex strip 98, so that the spacing inclined-plane 982 limits pcb board 93, without screw locking,
Assemble up and more facilitate, to improve the market competitiveness of the present utility model.
With reference to shown in Fig. 1,2, the pcb board 93 includes：AC input unit 1, rectification unit 2, input filter unit 3, change
Depressor 4, PWM controller unit 5, output filter unit 6 and DC output units 7, the AC input unit 1, rectification unit 2, input
Filter unit 3, transformer 4, output filter unit 6 and DC output units 7 are sequentially connected, and the PWM controller unit 5 connection becomes
Depressor 4 is also associated with sampling anti-to control the output voltage of transformer 4 between the PWM controller unit 5 and DC output units 7
Present unit 8.
The rectification unit 2 is bridge rectifier, and it includes the diode of four interconnections.
The input filter unit 3 includes the inductance between the armature winding being connected in rectification unit 2 and transformer 4
L1 and the electrochemical capacitor C1 being connected with inductance L1, electrochemical capacitor C2 and electric capacity C3 parallel with one another, resistance R1 and and resistance
Armature winding and PWM controller unit 5 in the diode D5 of R1 connections, the diode D5 negative electrode connection transformer 4.
The PWM controller unit 5 includes PWM controller chip 51 and is arranged at the periphery of PWM controller chip 51 simultaneously
For the power supply unit 52 to PWM controller chip power supply, the power supply unit 52 connects described transformer 4, the PWM controller
It is grounded after the parallel circuit that the 1st pin connection of chip 51 is made up of electric capacity C6 and electrochemical capacitor C5, the PWM controller chip 51
2nd, 3,7,8 pin ground connection, and connect it is described sampling feedback unit 8, the PWM controller chip 51 the 4th pin connection photoelectric coupling
Device, the 5th pin of the PWM controller chip 51 connects the armature winding in the transformer 4.
Said supply unit 52 includes being sequentially connected resistance R5, the resistance R4 of the pin of PWM controller chip 51 the 1st and fast
Recovery diode D6 and the electric capacity C4 for being connected between resistance R5 and resistance R4 and being grounded, the fast recovery diode D6 negative electrode connect
Connect described transformer 4.
The model NCP1014AP065G of the PWM controller chip 51, it has been internally integrated overload, overvoltage, excess temperature
Protection.
It is provided with the output filter unit 6 for preventing the overvoltage protection diode ZD2 of output overvoltage.
The output filter unit 6 includes the Schottky diode D7 being connected between transformer 4 and DC output units 7
With inductance L2 and electrochemical capacitor C9, electrochemical capacitor C10, electric capacity C11, Schottky diode D7 two ends are connected in parallel to resistance
R6 and electric capacity C6.
The sampling feedback unit 8 includes the controllable accurate being connected between PWM controller unit 5 and DC output units 7
Source of stable pressure and photoelectrical coupler and the first peripheral circuit, wherein, the model TL431 of the controllable accurate source of stable pressure is described
The model PC123 of photoelectrical coupler.First peripheral circuit includes being connected to what photoelectrical coupler was connected with output filter unit 6
Resistance R7, the resistance R8 being parallel on photoelectrical coupler, the electric capacity C12 being connected between resistance R8 and controllable accurate source of stable pressure,
The resistance R9 and resistance R10 that are connected with controllable accurate source of stable pressure and electric capacity C12, the electric capacity CY1 being connected with controllable accurate source of stable pressure,
Electric capacity CY2, resistance R10 and electric capacity CY2 are grounded, and resistance R7, resistance R9 are connected to the output filter unit 6, i.e., should
Resistance R7, resistance R9 are connected to inductance L2 two ends.
When pcb board 93 in the utility model works, alternating current is inputted by AC input unit 1, by rectification unit 2 and defeated
Enter the armature winding that described transformer 4 is reached after the rectifying and wave-filtering of filter unit 3, then by PWM in PWM controller unit
The driving transformer output voltage of controller chip 51, is eventually passed defeated by DC output units 7 after output filter unit 6 is filtered
Go out DC voltage, wherein, the overvoltage protection diode ZD2 in the output filter unit 6 can prevent output overvoltage, in addition, taking
Constantly sampling exports the output voltage of filter unit 6 to sample feedback unit 8, and feeds back to PWM controller chip 51, PWM controls
Device chip 51 processed is adjusted transformer driving according to feedback information, to reach the purpose of output voltage stabilization, so that stable pair
External device stable power-supplying, is used safer.
Certainly, specific embodiment of the utility model is the foregoing is only, is not implemented to limit the utility model
Scope, all equivalent change or modifications done according to construction, feature and principle described in present utility model application the scope of the claims, all should be wrapped
Include in present utility model application the scope of the claims.
Claims (9)
1. a kind of power supply adaptor, it includes housing (91) and the end cap (92) that is fixed on housing (91) and is fixed on housing
(91) the pcb board (93) in storage tank (911), wherein, integrally it is fixed with first, second metal insert on the end cap (92)
(95,96), first, second metal insert (95,96) is electrically connected with pcb board (93), it is characterised in that：
Some supporting plates (97) for being used to support pcb board (93), and the appearance are formed in the storage tank (911) of the housing (91)
The positioning convex strip (98) that groove (911) is internally provided with a plurality of genesis analysis is put, the positioning convex strip (98) is located at supporting plate (97)
Top, wherein, protruded in the middle part of the positioning convex strip (98), and positioning convex strip (98) upper end has lead-in chamfered (981), the positioning
Raised line (98) lower end has the spacing inclined-plane (982) for being used for limiting pcb board (93).
2. a kind of power supply adaptor according to claim 1, it is characterised in that：Housing (91) upper end is provided with annular
Groove (912) and two are located at annular groove (912) side and in the positioning convex column (913) being diagonally distributed；Under the end cap (92)
End forms the annular flange (921) being adapted to the annular groove (912), and also forms ultrasonic wave in the annular flange (921)
Molten thread (922)；End cap (92) the lower end shaping is additionally provided with the locating slot (923) for being adapted to positioning convex column (913).
3. a kind of power supply adaptor according to claim 1, it is characterised in that：The pcb board (93) includes：AC input list
First (1), rectification unit (2), input filter unit (3), transformer (4), PWM controller unit (5), output filter unit (6)
With DC output units (7), the AC input unit (1), rectification unit (2), input filter unit (3), transformer (4), output filter
Ripple unit (6) and DC output units (7) are sequentially connected, and the PWM controller unit (5) connects transformer (4) to control transformer
(4) output voltage, is also associated with sampling feedback unit (8) between the PWM controller unit (5) and DC output units (7), should
Sampling feedback unit (8) includes the controllable accurate source of stable pressure being connected between PWM controller unit (5) and DC output units (7)
With photoelectrical coupler and the first peripheral circuit, the AC input unit (1) connects first, second metal insert (95,96)；
First peripheral circuit include be connected to photoelectrical coupler with export filter unit (6) be connected resistance R7, be parallel to photoelectric coupling
Resistance R8 on device, the electric capacity C12 being connected between resistance R8 and controllable accurate source of stable pressure, with controllable accurate source of stable pressure and electric capacity
Resistance R9 and resistance R10, the electric capacity CY1 being connected with controllable accurate source of stable pressure, electric capacity CY2, resistance R10 and the electric capacity of C12 connections
CY2 is grounded, and resistance R7, resistance R9 are connected to the output filter unit (6).
4. a kind of power supply adaptor according to claim 3, it is characterised in that：The input filter unit (3) includes
The inductance L1 being connected between rectification unit (2) and the armature winding in transformer (4) and the electrolysis electricity being connected with inductance L1
Hold C1, electrochemical capacitor C2 and electric capacity C3 parallel with one another, resistance R1 and the diode D5, diode D5 that are connected with resistance R1
Negative electrode connection transformer (4) in armature winding and PWM controller unit (5).
5. a kind of power supply adaptor according to claim 3, it is characterised in that：The PWM controller unit (5) includes
PWM controller chip (51) and it is arranged at PWM controller chip (51) periphery and for confession to PWM controller chip power supply
Electric unit (52), the described transformer (4) of the power supply unit (52) connection, the 1st pin connection of the PWM controller chip (51) by
Be grounded after the parallel circuit that electric capacity C6 and electrochemical capacitor C5 are constituted, the PWM controller chip (51) the 2nd, 3,7,8 pin ground connection,
And connect the sampling feedback unit (8), the 4th pin connection photoelectrical coupler of the PWM controller chip (51), PWM controls
5th pin of device chip (51) connects the armature winding in the transformer (4)；The model of the PWM controller chip (51)
NCP1014AP065G。
6. a kind of power supply adaptor according to claim 3, it is characterised in that：Set in the output filter unit (6)
Have for preventing the overvoltage protection diode ZD2 of output overvoltage.
7. a kind of power supply adaptor according to claim 3, it is characterised in that：The output filter unit (6) includes
The Schottky diode D7 and inductance L2 and electrochemical capacitor C9 that are connected between transformer (4) and DC output units (7), electrolysis
Electric capacity C10, electric capacity C11, Schottky diode D7 two ends are connected in parallel to resistance R6 and electric capacity C6.
8. a kind of power supply adaptor according to claim 3, it is characterised in that：The model of the controllable accurate source of stable pressure
TL431。
9. a kind of power supply adaptor according to claim 3, it is characterised in that：The model of the photoelectrical coupler
PC123。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720162722.6U CN206481227U (en) | 2017-02-22 | 2017-02-22 | A kind of power supply adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720162722.6U CN206481227U (en) | 2017-02-22 | 2017-02-22 | A kind of power supply adaptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206481227U true CN206481227U (en) | 2017-09-08 |
Family
ID=59748204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720162722.6U Expired - Fee Related CN206481227U (en) | 2017-02-22 | 2017-02-22 | A kind of power supply adaptor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206481227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020010576A1 (en) * | 2018-07-12 | 2020-01-16 | 曹登明 | Light for decorative lighting, light string, and light string display state control method |
-
2017
- 2017-02-22 CN CN201720162722.6U patent/CN206481227U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020010576A1 (en) * | 2018-07-12 | 2020-01-16 | 曹登明 | Light for decorative lighting, light string, and light string display state control method |
| EP3614037A4 (en) * | 2018-07-12 | 2020-04-22 | Cao, Dengming | Light for decorative lighting, light string, and light string display state control method |
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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: 20170908 Termination date: 20200222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |