CN206226065U - A kind of ultra-thin charger and its circuit - Google Patents
A kind of ultra-thin charger and its circuit Download PDFInfo
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- CN206226065U CN206226065U CN201621231875.3U CN201621231875U CN206226065U CN 206226065 U CN206226065 U CN 206226065U CN 201621231875 U CN201621231875 U CN 201621231875U CN 206226065 U CN206226065 U CN 206226065U
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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
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of ultra-thin charger, including upper insulation crust, lower insulation crust, circuit board, contact plug and metal clips；Metal clips is connected with circuit board and combines internal located at upper insulation crust and lower insulation crust；Contact plug is rotationally connected with lower insulation crust, when contact plug is rotated, itself and metal clips Elastic Contact, by metal clips connection circuit plate, the thickness that the circuit board has USB connector, ultra-thin high frequency transformer, its ultra-thin high frequency transformer is not more than the thickness of USB connector.The utility model can solve the problems, such as to use inconvenience and charge efficiency is low.
Description
Technical field
The utility model is related to a kind of charger, more particularly to a kind of ultra-thin charger and its circuit.
Background technology
Existing general charger mostly volume is big, in irregular shape, and contact plug is not rotatable, especially has beside socket
When shelter, use cumbersome；And circuit sampling precision is low in also there is charging process, causes charge efficiency low
Problem.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of ultra-thin charger, and it can be solved
Certainly use the inconvenient and low problem of charge efficiency.
The purpose of this utility model is realized using following technical scheme：
A kind of ultra-thin charger, including upper insulation crust, lower insulation crust, circuit board, contact plug and metal clips；
Metal clips is connected with circuit board and combines internal located at upper insulation crust and lower insulation crust；Contact plug is rotationally connected with
Lower insulation crust, when contact plug is rotated, contacts plug and metal clips Elastic Contact, by metal clips connection circuit plate,
The circuit board has USB connector, ultra-thin high frequency transformer, and the thickness of ultra-thin high frequency transformer is not more than USB connector
Thickness.
Preferably, the ultra-thin high frequency transformer includes PIN, skeleton, iron core and winding；The skeleton has hollow
Heart axle；The iron core point includes upper and lower iron core, and the upper and lower iron core includes the clamping plate of iron mandrel and connection iron mandrel；It is described
Iron mandrel passes through hollow heart axle；The winding includes multilayer magnetic conduction wire rod and multi-layer conductor leads wire rod, and the winding is wrapped in sky
Core heart axle periphery.
Preferably, the winding is followed successively by magnetic conduction wire-coated, electric wire layer and magnetic conduction wire-coated by internal layer to outer layer.
A kind of ultra-thin charger circuit, including：Current rectifying and wave filtering circuit, for by mains voltage commutation into smoothly straight
Stream power supply；Ultra-thin high frequency transformer, for isolating transmission electric current；IC controls circuit, for controlling the first of ultra-thin high frequency transformer
The break-make of level winding and power supply；Charging output circuit, for exporting DC charging voltage；IC power supply circuits, for IC controls
IC in circuit powers；The charging output circuit includes high-frequency synchronous rectifying output circuit and access device identification circuit；Institute
State rectification filter circuit output end and connect ultra-thin high frequency transformer；The IC controls circuit connects the ultra-thin high frequency transformer；
The IC power supply circuits connect ultra-thin high frequency transformer and IC control circuits respectively；The high-frequency synchronous rectifying output circuit connection
Ultra-thin high frequency transformer；The access device identification circuit connects high-frequency synchronous rectifying output circuit.
Preferably, the IC controls circuit includes：Chip U2, resistance R11, resistance R10, resistance R18, fast diode D2
With metal-oxide-semiconductor Q2；The metal-oxide-semiconductor drain electrode ultra-thin high frequency transformer of connection, source electrode connection resistance R18, grid connection resistance R11；Institute
State resistance R10 and fast diode D2 series connection again with resistance R11 and connect；The resistance R11 connection chips U2；The resistance R18
Ground connection.
Preferably, the IC power supply circuits include：Resistance R1 and commutation diode D3；Described resistance R12 one end and rectification
Diode D3, ultra-thin high frequency transformer assists winding sequential concatenation；The resistance R12 connection IC chips U2.
Preferably, the high-frequency synchronous rectifying output circuit includes IC chip U1, electric capacity C1, electric capacity C6, resistance R3 and electricity
Hold C7；Electric capacity C1 is connected between the IC chip U1 first ends and the second end, be linked in sequence resistance between the second end and the 3rd end
R3 and electric capacity C6；The ends of IC chip U1 second connect ultra-thin high frequency transformer secondary windings；The three-terminal link electric capacity C7；
The electric capacity C7 ground connection.
Preferably, the access device identification resistance includes IC chip U3, connector J1 and connector J2；The IC chip
The ends of U3 second are connected and are grounded with the 4th end of the connector J1 and connector J2；The ends of IC chip U3 the 5th and the company
The first end connection for meeting device J1 and connector J2 is connected to the ends of IC chip U1 the 3rd；The IC chip U3 first ends and the 6th end point
Lian Jie not the ends of connector J1 second and the 3rd end；The ends of IC chip U3 the 3rd and the 4th end connect the ends of connector J2 second respectively
With the 3rd end.
Preferably, also including EMI circuits, interference of the high-frequency impulse to power supply for filtering civil power,；Peak absorbing electricity
Road, for absorbing the peak voltage on ultra-thin high frequency transformer；The EMT circuits connect current rectifying and wave filtering circuit and ultra-thin height respectively
Frequency power transformer, the peak absorbing circuit connects ultra-thin high frequency transformer and IC oscillating circuits respectively.
Preferably, it is characterised in that the IC chip U2 is the integrated circuit of model OB2371；The IC chip U1 is type
The integrated circuit of number JW7707C；The IC chip U3 is the integrated circuit of model C X2901A.
Compared to existing technology, the beneficial effects of the utility model are：By circuit structure design, and ultra-thin transformer
Design use so that whole charger charge efficiency is higher and structure on become thinner, use more convenient, U.S.
See.
Brief description of the drawings
Fig. 1 is the decomposing schematic representation of the charger in the utility model embodiment；
Fig. 2 is the schematic top plan view of the ultra-thin high frequency transformer in the utility model embodiment；
Fig. 3 is the preceding schematic side view of the ultra-thin high frequency transformer in the utility model embodiment；
Fig. 4 is the winding coiling schematic diagram of the ultra-thin high frequency transformer in the utility model embodiment；
Fig. 5 is the schematic diagram of the ultra-thin charger circuit in the utility model embodiment；
In figure：10th, upper insulation crust；20th, circuit board；21st, skeleton；211st, hollow heart axle；22nd, iron core；221st, upper core；
222nd, lower core；223rd, iron mandrel；23rd, winding；231st, high connductivity wire-coated；232nd, magnetic conduction wire-coated high；24th, PIN；30、
Metal clips；40th, plug is contacted；50th, lower insulation crust.
Specific embodiment
Below, with reference to accompanying drawing and specific embodiment, the utility model is described further：
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
Preferably to describe the utility model embodiment, described in this specification " front, back, left, right, up, down " and with it is attached
Direction in figure is consistent.
Such as Fig. 1, a kind of ultra-thin charger, including upper insulation crust 10, lower insulation crust 50, circuit board 20, contact plug
40 and metal clips 30；Circuit board 10 is fixed on the inner face of lower insulation crust 50, and the one end of metal clips 30 is electrical with circuit board 20
It is fixedly connected, one end rotates with contact plug 40 and is connected；Contact plug 40 is rotated and is fixed on lower insulation crust 50；Upper insulation crust
10 together with the cooperation fixation of lower insulation crust 50, and circuit board 20 and metal clips 30 are outside upper insulation crust 10 and lower insulation
Shell 50 combines inside；When contact plug is rotated, it is contacted with metal clips elastic rotation, by metal clips connection circuit plate,
Realize that plug can be rotated to use, use more convenient.Circuit board has USB connector, ultra-thin high frequency transformer etc. main big
Volume device, the thickness of the thickness no more than USB connector of the ultra-thin high frequency transformer that circuit board is used in the present embodiment so that
Whole charger construction is simpler, and charger is square and thickness is thinner, and charger is caused compared to traditional transformer is used
It is big and plain to seem more attractive.
Such as Fig. 2, Fig. 3, ultra-thin high frequency transformer includes PIN 24, skeleton 21, iron core 22 and winding 23；In skeleton 21
Center portion point has hollow heart axle 211, and PIN 24 is inlayed in the two ends of skeleton 21, and PIN 24 is Flat-attached type；22 points of iron core is
Upper core 221, lower core 222, iron core 22 include the clamping plate of iron mandrel 223 and connection iron mandrel one end；Upper core axle is from upper
And under pierce into hollow heart axle 211, lower core axle passes through hollow heart axle 211 from below to up, the length of upper and lower iron mandrel and more than etc.
In hollow mandrel length；Winding 23 includes multilayer magnetic conduction wire rod 232 and multi-layer conductor leads wire rod 231, and winding is wrapped in the hollow heart
Axle periphery.
Such as Fig. 4, it may be preferable that magnetic conduction wire-coated 232 can be the magnetic conduction high of molybdenum manganese alloy or slope film alloy enamel-covered wire composition
Wire-coated, electric wire layer can be the high connductivity wire-coated 231 of copper or aluminium enamel-covered wire composition；Winding 23 according to by internal layer to outer
Layer is followed successively by magnetic conduction wire-coated 232, electric wire layer 231 and the order of magnetic conduction wire-coated 232 and carries out coiling, according to actual needs
Electric wire layer can be multilayer, such as 2 layers, 3 layers etc., material is thus formed full frame shield structure, electromagnetism magnetic flux will not be revealed, and be carried
High efficiency, because the capacity of transformer actual demand is typically all that design in advance is set, so improving efficiency, just makes initial reason
Can just become smaller by capacity, core volume also can just become smaller, area one similarly be reserved in the circuit board and is fixed, iron
The thickness of core also just diminishes, and becomes thinner, then with foregoing skeleton structure, just realizes the ultra-thin transformation of more regular shape
Device, so that charger becomes thinner.
Such as Fig. 5, a kind of ultra-thin charger circuit, including：Current rectifying and wave filtering circuit, for by mains voltage commutation Cheng Ping
Steady dc source；Ultra-thin high frequency transformer, for isolating transmission electric current；IC controls circuit, for controlling ultra-thin high frequency transformation
The armature winding of device and the break-make of power supply；Charging output circuit, for exporting DC charging voltage；IC power supply circuits, for right
IC in IC control circuits powers；The charging output circuit includes high-frequency synchronous rectifying output circuit and access device identification electricity
Road；The rectification filter circuit output end connects ultra-thin high frequency transformer；The IC controls circuit connection ultra-thin high frequency becomes
Depressor；The IC power supply circuits connect ultra-thin high frequency transformer and IC control circuits respectively；The high-frequency synchronous rectification output electricity
Road connects ultra-thin high frequency transformer；The access device identification circuit connects high-frequency synchronous rectifying output circuit.Civil power is by whole
Reason filter circuit becomes stable DC voltage, is input to ultra-thin high frequency transformer armature winding reconnection IC control circuits and passes back
Ground wire, forms loop；Ultra-thin high frequency transformer armature winding senses ultra-thin high frequency transformer assists winding and produces voltage by IC
Power supply circuit is that IC control circuits are powered；IC controls circuit start, and control loop break-make forms vibration；Secondary windings senses to be formed
Exchange connection charging output circuit output charging voltage.
IC control circuits include：Chip U2, resistance R11, resistance R10, resistance R18, fast diode D2 and metal-oxide-semiconductor Q2；
Chip U2 is the integrated circuit of model OB2371, totally 8 pins；The metal-oxide-semiconductor drain electrode ultra-thin high frequency transformer of connection, source electrode connects
Connecting resistance R18, grid connection resistance R11；It is overall with resistance R11 and to connect after the resistance R10 and fast diode D2 series connection；
6th pin of the resistance R11 connection chips U2；The resistance R18 ground connection.Chip U2 starts, the 6th pin output square wave, high
During level, metal-oxide-semiconductor Q2 conductings, during low level, metal-oxide-semiconductor Q2 cut-offs form the break-make of armature winding, and form vibration.
IC power supply circuits include：Resistance R1 and commutation diode D3；It is described resistance R12 one end and commutation diode D3, super
Thin high frequency transformer assists winding sequential concatenation；8th pin of the resistance R12 connection IC chips U2.Assists winding sensing is just
Level winding produces alternating voltage, and rectification is carried out by diode D3, is rectified into DC voltage, and filter by electric capacity C16 in Fig. 5
Stable DC voltage is formed for IC chip U2 provides operating voltage.
High-frequency synchronous rectifying output circuit includes IC chip U1, electric capacity C1, electric capacity C6, resistance R3 and electric capacity C7；The IC
Electric capacity C1 is connected between chip U1 first ends and the second end, be linked in sequence resistance R3 and electric capacity C6 between the second end and the 3rd end；
The IC chip U1 is the integrated circuit of model JW7707C, and its second end connects ultra-thin high frequency transformer secondary windings；Described
Three-terminal link electric capacity C7；The electric capacity C7 ground connection.Ultra-thin high frequency transformer secondary windings senses first winding and produces alternating voltage,
DC voltage is rectified into by IC chip U1 to be exported.
Equipment identification resistance includes IC chip U3, connector J1 and connector J2；The IC chip U3 is model C X2901A
Integrated circuit, its second end is connected and is grounded with the 4th end of the connector J1 and connector J2；The IC chip U3
Five ends are connected with the first end of the connector J1 and connector J2 and are connected to the ends of IC chip U1 the 3rd；The IC chip U3 first
End and the 6th end connect the ends of connector J1 second and the 3rd end respectively；The ends of IC chip U3 the 3rd and the 4th end connect respectively
Connect the ends of device J2 second and the 3rd end.J1, J2 are made an excuse for USB, and the recognizable equipment for charging that accesses of the identification circuit is judged,
And shaken hands by corresponding charge protocol and equipment, it is allowed to obtain maximum charging current, saved on the premise of charging equipment is protected
Save charging interval, applicable Android system extensive at present, the mobile phone of apple system.
The ultra-thin charger circuit also include EMI circuits, interference of the high-frequency impulse to power supply for filtering civil power, while
Also function to reduce power supply electromagnetic interference to external world in itself；Peak absorbing circuit, for absorbing the point on ultra-thin high frequency transformer
Peak voltage；The EMT circuits connect current rectifying and wave filtering circuit and ultra-thin high frequency transformer respectively, and the peak absorbing circuit connects respectively
Connect ultra-thin high frequency transformer and IC oscillating circuits.
In the utility model embodiment, beneficial effect is designed by circuit structure, circuit structure area occupied
It is small, and design by using ultra-thin high frequency transformer uses so that whole circuit board thickness is smaller, is aided with and uses metal clips
And the regular shape design of insulation crust up and down so that whole charger is thinner, more attractive, uses more convenient；Simultaneously
Circuit is controlled using IC in circuit, it is higher to current sampling precision so that charge efficiency is higher, use high-frequency synchronous rectified current
Road so that output charging current speed faster, uses access device identification circuit so that charging mould can be switched according to access device
Formula so that charge faster, reach charge efficiency benefit higher.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection of the utility model claim
Within the scope of.
Claims (10)
1. a kind of ultra-thin charger, it is characterised in that including upper insulation crust, lower insulation crust, circuit board, contact plug and
Metal clips；Metal clips is connected with circuit board and combines internal located at upper insulation crust and lower insulation crust；Contact plug
Lower insulation crust is rotationally connected with, when contact plug is rotated, plug and metal clips Elastic Contact is contacted, is connected by metal clips
Circuit passband plate, the circuit board has USB connector, ultra-thin high frequency transformer, and the thickness of ultra-thin high frequency transformer is not more than USB
The thickness of connector.
2. a kind of ultra-thin charger according to claim 1, it is characterised in that the ultra-thin high frequency transformer includes PIN
Pin, skeleton, iron core and winding；The skeleton has hollow heart axle；The iron core includes upper and lower iron core, the upper and lower iron core bag
Include the clamping plate of iron mandrel and connection iron mandrel；The iron mandrel passes through hollow heart axle；The winding includes multilayer magnetic conduction wire rod
And multi-layer conductor leads wire rod, it is peripheral that the winding is wrapped in hollow heart axle.
3. a kind of ultra-thin charger according to claim 2, it is characterised in that the winding is followed successively by by internal layer to outer layer
Magnetic conduction wire-coated, electric wire layer and magnetic conduction wire-coated.
4. the ultra-thin charger circuit described in a kind of claim 1, it is characterised in that including：Current rectifying and wave filtering circuit, for by city
Electric ac voltage rectifier is into stable dc source；Ultra-thin high frequency transformer, for isolating transmission electric current；IC controls circuit, uses
In the armature winding and the break-make of power supply that control ultra-thin high frequency transformer；Charging output circuit, for exporting DC charging voltage；
IC power supply circuits, for being powered to the IC in IC control circuits；The charging output circuit includes that high-frequency synchronous rectification exports electricity
Road and access device identification circuit；The rectification filter circuit output end connects ultra-thin high frequency transformer；The IC controls circuit
Connect the ultra-thin high frequency transformer；The IC power supply circuits connect ultra-thin high frequency transformer and IC control circuits respectively；It is described
High-frequency synchronous rectifying output circuit connects ultra-thin high frequency transformer；The access device identification circuit connection high-frequency synchronous rectification is defeated
Go out circuit.
5. ultra-thin charger circuit according to claim 4, it is characterised in that the IC controls circuit includes：Chip U2,
Resistance R11, resistance R10, resistance R18, fast diode D2 and metal-oxide-semiconductor Q2；The metal-oxide-semiconductor drain electrode ultra-thin high frequency transformation of connection
Device, source electrode connection resistance R18, grid connection resistance R11；The resistance R10 and fast diode D2 series connection after again with resistance R11
It is in parallel；The resistance R11 connection chips U2；The resistance R18 ground connection.
6. ultra-thin charger circuit according to claim 4, it is characterised in that the IC power supply circuits include：Resistance R1
With commutation diode D3；Described resistance R12 one end and commutation diode D3, ultra-thin high frequency transformer assists winding sequential concatenation；
The resistance R12 connection IC chips U2.
7. ultra-thin charger circuit according to claim 6, it is characterised in that the high-frequency synchronous rectifying output circuit bag
Include IC chip U1, electric capacity C1, electric capacity C6, resistance R3 and electric capacity C7；Electricity is connected between the IC chip U1 first ends and the second end
Hold C1, be linked in sequence resistance R3 and electric capacity C6 between the second end and the 3rd end；The ends of IC chip U1 second connect ultra-thin high frequency
Transformer secondary output winding；The three-terminal link electric capacity C7；The electric capacity C7 ground connection.
8. ultra-thin charger circuit according to claim 7, it is characterised in that the access device identification resistance includes IC
Chip U3, connector J1 and connector J2；4th end of the ends of IC chip U3 second and the connector J1 and connector J2
Connect and be grounded；The ends of IC chip U3 the 5th are connected with the first end of the connector J1 and connector J2 and are connected to IC chip
The ends of U1 the 3rd；The IC chip U3 first ends and the 6th end connect the ends of connector J1 second and the 3rd end respectively；The IC chip
The ends of U3 the 3rd and the 4th end connect the ends of connector J2 second and the 3rd end respectively.
9. ultra-thin charger circuit according to claim 4, it is characterised in that also including EMI circuits, for filtering civil power
Interference of the high-frequency impulse to power supply；Peak absorbing circuit, for absorbing the peak voltage on ultra-thin high frequency transformer；It is described
EMT circuits connect current rectifying and wave filtering circuit and ultra-thin high frequency transformer respectively, and the peak absorbing circuit connects ultra-thin high frequency respectively
Transformer and IC oscillating circuits.
10. ultra-thin charger circuit according to claim 8, it is characterised in that the IC chip U2 is model OB2371
Integrated circuit；The IC chip U1 is the integrated circuit of model JW7707C；The IC chip U3 is the collection of model C X2901A
Into circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621231875.3U CN206226065U (en) | 2016-11-16 | 2016-11-16 | A kind of ultra-thin charger and its circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621231875.3U CN206226065U (en) | 2016-11-16 | 2016-11-16 | A kind of ultra-thin charger and its circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206226065U true CN206226065U (en) | 2017-06-06 |
Family
ID=58793636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621231875.3U Active CN206226065U (en) | 2016-11-16 | 2016-11-16 | A kind of ultra-thin charger and its circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN206226065U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451662A (en) * | 2016-11-16 | 2017-02-22 | 信佶(深圳)电脑配件有限公司 | Ultra-thin charger and circuit thereof |
| WO2021073451A1 (en) * | 2019-10-14 | 2021-04-22 | Oppo广东移动通信有限公司 | Plug structure and electronic device |
| WO2021184241A1 (en) * | 2020-03-18 | 2021-09-23 | 广东高普达集团股份有限公司 | Power adapter |
-
2016
- 2016-11-16 CN CN201621231875.3U patent/CN206226065U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451662A (en) * | 2016-11-16 | 2017-02-22 | 信佶(深圳)电脑配件有限公司 | Ultra-thin charger and circuit thereof |
| WO2021073451A1 (en) * | 2019-10-14 | 2021-04-22 | Oppo广东移动通信有限公司 | Plug structure and electronic device |
| US11862910B2 (en) | 2019-10-14 | 2024-01-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Plug structure and electronic device |
| WO2021184241A1 (en) * | 2020-03-18 | 2021-09-23 | 广东高普达集团股份有限公司 | Power adapter |
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