CN203522289U - Mobile phone low-voltage charging system for dormitory - Google Patents
Mobile phone low-voltage charging system for dormitory Download PDFInfo
- Publication number
- CN203522289U CN203522289U CN201320585824.0U CN201320585824U CN203522289U CN 203522289 U CN203522289 U CN 203522289U CN 201320585824 U CN201320585824 U CN 201320585824U CN 203522289 U CN203522289 U CN 203522289U
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- Prior art keywords
- mobile phone
- voltage
- dormitory
- low
- power line
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- Expired - Fee Related
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Abstract
The utility model relates to a mobile phone low-voltage charging system for a dormitory. The mobile phone low-voltage charging system includes a power line, a low-voltage transformer and a USB charging port; the power line, the low-voltage transformer and the USB charging port are connected in turn via a plastic copper wire; six charging ports are disposed on the USB charging port; and the low-voltage transformer includes a transformer coil, four capacitors and a three-terminal integrated regulator module, one end of the transformer coil is connected to the power line, and the four capacitors and the three-terminal integrated regulator module are connected on the other end of the transformer coil. The mobile phone low-voltage charging system for the dormitory can make up for the lack of mobile phone charging chambers, eliminates safety risks due to installation of 220v outlets in each dormitory, and can both ensure effective charging and prevent irregular power utilization, so that high-power electrical appliances cannot be used, fire disasters are thus avoided and safe use of electricity is ensured.
Description
[technical field]
The utility model relates to a kind of mobile phone charging system, is specifically related to a kind of mobile phone low pressure charging system of dormitory, belongs to charger technical field.
[background technology]
At present, the charging of the mobile phone in dormitory district adopts mobile phone dedicated accumulator plant or 220v supply socket is installed in each dormitory.In mobile phone accumulator plant, mobile phone is numerous, and mistake is taken, loss situation is many; 220v supply socket exists private to draw random potential safety hazard in dormitory, and the private of load when larger is drawn and disorderly connect utmost point fire hazardous, initiation serious accident.
According to lithium ion battery constant current supercharge, constant voltage charge principle.The charging process of lithium ion battery is divided into two steps: constant current charge before this, its current constant, voltage constantly raises, when being elevated to the rated voltage of cell phone lithium-ion batteries, voltage is automatically converted to constant voltage charge, voltage constant when constant voltage charge, electric current is more and more less until charging current is less than preset value, during constant current charge, show when being charged to the rated voltage of battery, this rated voltage is not the voltage of battery reality in fact, but the voltage of battery adds the voltage sum consuming on the internal resistance of cell, if the voltage that electric current consumes very greatly so in internal resistance is also just very large, so the voltage of actual battery at this moment may be little more a lot of than the rated voltage of battery, constant voltage charge process afterwards, the electric current of charging is slowly lowered, along with reducing of electric current, the virtual voltage of battery just approaches rated voltage very much like this.
Therefore, for solving the problems of the technologies described above, and in conjunction with above-mentioned charging principle, necessaryly provide a kind of mobile phone low pressure charging system with structure improved dormitory, to overcome described defect of the prior art.
[utility model content]
For addressing the above problem, the purpose of this utility model is to provide a kind of can guarantee that charging can prevent that again private from drawing the mobile phone low pressure charging system in the dormitory disorderly connecing, thereby it cannot use high-power electric appliance to avoid fire to occur, guarantee Electrical Safety.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of mobile phone low pressure charging system of dormitory, and it comprises power line, low pressure power transformation device and USB charging inlet; Wherein, described power line, low pressure power transformation device and USB charging inlet are connected by moulding copper cash successively; In described USB charging inlet, be provided with six charge port; Described low pressure power transformation device comprises a transformation coil, four electric capacity and a circuit of three-terminal voltage-stabilizing integrated module, and described transformation coil one end is connected with power line, on the other end and be connected to described four electric capacity and circuit of three-terminal voltage-stabilizing integrated module.
The mobile phone low pressure charging system in dormitory of the present utility model is further set to: described power line comprises a live wire, a zero line and a ground protection line.
Compared with prior art, the utlity model has following beneficial effect: the mobile phone low pressure charging system in dormitory of the present utility model can make up the deficiency of mobile phone accumulator plant, eliminate the potential safety hazard that 220v supply socket is installed in each dormitory, can guarantee that effective charging can prevent again that private from drawing and disorderly connect, thereby high-power electric appliance cannot be used, avoid fire to occur, guarantee Electrical Safety.
[accompanying drawing explanation]
Fig. 1 is the schematic diagram of the mobile phone low pressure charging system in dormitory of the present utility model.
Fig. 2 is the schematic diagram of the low pressure power transformation device in Fig. 1.
[embodiment]
Refer to shown in Figure of description 1 and accompanying drawing 2, the mobile phone low pressure charging system that the utility model is a kind of dormitory, it is comprised of three parts such as power line 1, low pressure power transformation device 2 and USB charging inlets 3.
Wherein, described power line 1, low pressure power transformation device 2 and USB charging inlet 3 are connected by moulding copper cash 4 successively.
Described power line 1 comprises a live wire, a zero line and a ground protection line.
Described low pressure power transformation device 2 comprises a transformation coil 21, four electric capacity 22 and circuit of three-terminal voltage-stabilizing integrated modules 23, and described transformation coil 21 one end are connected with power line 1, on the other end and be connected to described four electric capacity 22 and circuit of three-terminal voltage-stabilizing integrated module 23.This transformation coil 21 can be 5V voltage by 220V voltage transitions, is sent to end USB charging inlet 3 rear voltages and becomes 3.7～4.3v.Described circuit of three-terminal voltage-stabilizing integrated module 23 can be carried out voltage stabilizing to output voltage.
In described USB charging inlet 3, be provided with six charge port, can meet 6 people's chargings simultaneously.
Above embodiment is only the preferred embodiment of this creation, not in order to limit this creation, any modification of making, is equal to replacement, improvement etc., within all should being included in the protection range of this creation within all spirit in this creation and principle.
Claims (1)
1. the mobile phone low pressure charging system in dormitory, is characterized in that: comprise power line, low pressure power transformation device and USB charging inlet; Wherein, described power line, low pressure power transformation device and USB charging inlet are connected by moulding copper cash successively; In described USB charging inlet, be provided with six charge port; Described low pressure power transformation device comprises a transformation coil, four electric capacity and a circuit of three-terminal voltage-stabilizing integrated module, and described transformation coil one end is connected with power line, on the other end and be connected to described four electric capacity and circuit of three-terminal voltage-stabilizing integrated module; Described power line comprises a live wire, a zero line and a ground protection line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585824.0U CN203522289U (en) | 2013-09-23 | 2013-09-23 | Mobile phone low-voltage charging system for dormitory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585824.0U CN203522289U (en) | 2013-09-23 | 2013-09-23 | Mobile phone low-voltage charging system for dormitory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203522289U true CN203522289U (en) | 2014-04-02 |
Family
ID=50381164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320585824.0U Expired - Fee Related CN203522289U (en) | 2013-09-23 | 2013-09-23 | Mobile phone low-voltage charging system for dormitory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203522289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196353A (en) * | 2016-11-23 | 2017-09-22 | 王忠佰 | Dormitory is with split type charger with wireless function of charging |
-
2013
- 2013-09-23 CN CN201320585824.0U patent/CN203522289U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196353A (en) * | 2016-11-23 | 2017-09-22 | 王忠佰 | Dormitory is with split type charger with wireless function of charging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA RAILWAY AIRPORT CONSTRUCTION GROUP BEIJING C Effective date: 20140505 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140505 Address after: 100093 Beijing city Haidian District minzhuang Road No. 87 Patentee after: CHINA RAILWAY AIRPORT CONSTRUCTION Group Corp. Patentee after: CHINA RAILWAY & AIRPORT CONSTRUCTION GROUP (BEIJING) Co.,Ltd. Address before: 100093 Beijing city Haidian District minzhuang Road No. 87 Patentee before: CHINA RAILWAY AIRPORT CONSTRUCTION Group Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |