CN210517870U

CN210517870U - Portable power adapter

Info

Publication number: CN210517870U
Application number: CN201921457477.7U
Authority: CN
Inventors: 宋旭东; 罗澎湃
Original assignee: Ningbo Comen Electronics Technology Co ltd
Current assignee: Ningbo Comen Electronics Technology Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-05-12
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a portable power adapter, which comprises a housin, plug and adapter unit, adapter unit fixed mounting is in the casing, the plug passes through the wire and is connected with the adapter unit electricity, the adapter unit includes rectifier module, vary voltage module and voltage stabilizing module, rectifier module is used for converting external alternating current power supply into DC power supply and transmits to the voltage stabilizing module, the voltage stabilizing module transforms the voltage of the DC power supply received and transmits the electric energy after transform to the voltage stabilizing module, the voltage stabilizing module carries out the voltage stabilizing output to the electric energy of transform module output, the other end of casing is fixed and is provided with 2 power source interfaces that are used for charging mobile terminal, power source interface is connected with the voltage stabilizing module electricity; the adapter unit is connected with the plug through the wire, so that the flexibility between the plug and the adapter is effectively increased, the distance between the adapter and the wiring socket is prolonged through the wire, and the situation that the adapter cannot be used for charging due to the fact that a user data line is short is avoided.

Description

Portable power adapter

Technical Field

The utility model relates to a power adapter, concretely relates to portable power adapter.

Background

A power adapter is an electronic device for converting electric energy, and is generally used to supply power to small electronic devices, such as mobile phones, tablets, and the like. The existing power adapter integrates and centralizes a plug and an adapter together, and is commonly called as a mobile phone charger or a charger. The charger is large in size due to the centralized design of the plug and the adapter, and the charger is required to be integrally connected and inserted into the power strip in a charging mode. When a plurality of plugs are plugged in the power strip or the charger is used, the phenomenon that the adapter cannot be plugged in the power strip due to the fact that the size of the adapter is large exists. In some office or home environments, the socket is usually positioned at the side or the bottom of an office station, and the charger is plugged on the socket and then connected with a mobile phone or a tablet computer through a data line, so that the phenomenon of insufficient length of the data line exists; the user can connect the charger and the mobile phone by purchasing the lengthened data line, because the voltage output by the charger is direct current, and the mobile phone has certain limitation on charging current during charging, namely a rated range, when the lengthened data line is used, the length of the data line is increased, so that the resistance value of the data line is increased, and especially when the lengthened data line with poor quality is purchased, because the charger outputs direct current, the output current is inversely proportional to the resistance value, so that the current is sensitive to the resistance value increase of the data line. The data line can increase the burden of a mobile phone or a tablet when used for a long time, and the service life of a battery is shortened; along with the popularization of electronic equipment, a user can simultaneously carry a plurality of electronic equipment such as a mobile phone, a tablet and the like, chargers of the mobile phone and the tablet can be shared, but two chargers need to be simultaneously plugged in a power strip during simultaneous charging, the two chargers are inconvenient to carry, and meanwhile, the phenomenon that only one jack is available exists, namely, the two chargers cannot be simultaneously plugged in the power strip.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the portable power adapter can effectively avoid the problem that the portable power adapter cannot be plugged in a narrow space and is flexible to move.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a portable power adapter comprises a shell, a plug and an adapter unit, wherein the adapter unit is fixedly arranged in the shell, the plug is electrically connected with the adapter unit through a lead, a limiting ring is fixedly arranged at one end of the lead close to the adapter unit, the limiting ring is fixed with one end of the shell, the adapter unit comprises a rectifying module, a voltage transformation module and a voltage stabilization module, the rectifying module is used for converting an external alternating current power supply into a direct current power supply and transmitting the direct current power supply to the voltage transformation module, the voltage transformation module is used for transforming the voltage of the received direct current power supply and transmitting the transformed electric energy to the voltage stabilization module, the voltage stabilization module is used for performing voltage stabilization output on the electric energy output by the transformation module, and 2 power interfaces used for charging a mobile terminal are fixedly arranged at the other end of the shell, the power interface is electrically connected with the voltage stabilizing module.

Preferably, the other end of the housing is fixedly nested with a cover, and 2 power interfaces are fixed with the cover.

Preferably, the length of the wire for connecting the plug and the adapter unit is 0.5-1.5 m.

Preferably, the rectifier module is a full bridge rectifier.

Preferably, the transformation module comprises a transformation chip of model LN1F15, the transformation chip is connected with the rectification module, the transformation chip is further connected with a regulating transformer, and the regulating transformer is connected with the voltage stabilization module.

Preferably, the voltage stabilizing module comprises a power chip with a model of CLR6212SQA, wherein

pins

1, 2, 3, 5, 6 and 8 of the power chip are all connected with pins 4 of the regulating transformer, pin 3 of the regulating transformer is connected with pins 4 of the power chip, pin 4 of the power chip, one end of an eleventh resistor, an anode of a third polar capacitor, one end of a twelfth resistor, an anode of the first power interface and an anode of the second power interface are all connected, the other end of the eleventh resistor, a cathode of the third polar capacitor, a cathode of the first power interface and a cathode of the second power interface are all connected with pins 4 of the regulating transformer, the other end of the twelfth resistor is connected with one end of a fourth capacitor and pin 5 of the interface driving chip, the other end of the fourth capacitor and pin 2 of the interface driving chip are all connected with pins 4 of the regulating transformer, pin 4 of the interface driving chip is connected with a digital cathode of the first power interface, pin 3 of the interface driving chip is connected with the digital anode of the first power interface, pin 1 of the interface driving chip is connected with the digital cathode of the second power interface, and pin 6 of the interface driving chip is connected with the digital anode of the second power interface.

Compared with the prior art, the utility model has the advantages that the adapter unit is connected with the plug through the wire, effectively increased the flexibility between plug and the adapter, make the adapter and the wiring insert the distance between the row and prolong through the wire, thereby avoided the short and unable adapter of using of user data line to carry out the situation that charges, the volume of plug is far less than the casing that is used for installing the adapter unit simultaneously, consequently can add to insert the plug and insert on the narrow and small row of inserting in space, effectively avoided because of traditional charger volume great and can't connect the phenomenon of inserting in the row mountain of inserting the line. The adapter unit is provided with a first power supply connector and a second power supply connector, so that the adapter unit can simultaneously charge 2 mobile terminals and only needs to be provided with an idle jack on the power strip. The voltage stabilizing module arranged in the adapter unit can effectively realize voltage stabilization of the direct current output by the voltage transformation module and output electric energy to the first power interface and the second power interface through the interface driving chip. The driving capability of the output electric energy is enhanced by the interface driving chip, and meanwhile, the external electronic equipment can be protected.

Drawings

Fig. 1 is one of the overall structural diagrams of the present invention;

fig. 2 is a second schematic view of the overall structure of the present invention;

fig. 3 is a schematic circuit connection diagram of the voltage transformation module according to the present invention;

fig. 4 is a schematic diagram of the circuit connection of the voltage stabilizing module of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

A portable power adapter comprises a shell 1, a plug 3 and an adapter unit, wherein the shell 1 comprises an upper shell 1.1 and a lower shell 1.2, the adapter unit is fixedly arranged in the shell 1, the plug 3 is electrically connected with the adapter unit through a wire 5, one end of the wire 5 close to the adapter unit is fixedly provided with a limit ring 4, the limit ring 4 is fixed with one end of the shell 1, the adapter unit comprises a rectifying module, a voltage transformation module and a voltage stabilization module, the rectifying module is a full-bridge rectifier DB1, the rectifying module is used for converting an external alternating current power supply into a direct current power supply and transmitting the direct current power supply to the voltage transformation module, the voltage transformation module transforms the voltage of the received direct current power supply and transmits the transformed electric energy to the voltage stabilization module, and the voltage stabilization module performs voltage stabilization output on the electric energy output by the voltage transformation module, the other end of the shell 1 is fixedly provided with 2 power interfaces for charging the mobile terminal, the power interfaces are electrically connected with the voltage stabilizing module, and the length of a lead 5 for connecting the plug 3 and the adapter unit is 0.5-1.5 meters.

The other end of the shell 1 is hermetically nested and fixed with a

sealing cover

2, and 2 power interfaces, namely a first power interface 6 and a second power interface 7, are fixed with the sealing cover 2.

The transformation module comprises a transformation chip U1 of type LN1F15, the transformation chip U1 is connected with the rectification module, the transformation chip U1 is also connected with a regulating transformer T1, wherein the regulating transformer T1 is an EE10 type transformer, and the regulating transformer T1 is connected with the voltage stabilization module. The model of the rectifier module is TL10F, the positive electrode of the output end of the rectifier module is connected to one end of a first polarity capacitor EC1 and one end of a first inductor L1, two ends of the first inductor L1 are connected in parallel to a first resistor R1, the other end of the first inductor L1 is connected to one end of a second resistor R2, one end of a first capacitor C1, one end of a second polarity capacitor EC2, one end of a third resistor R3 and the pin 1 of a regulating transformer T1, the other end of the first polarity capacitor EC1 is connected to the negative electrode of the output end of the rectifier module and one end of a second inductor L2, the other end of the second resistor R2 is connected to one end of a fourth resistor R4, the other end of the fourth resistor R4 is connected to the negative electrode of a first diode D1, the pin 2 of a transformer chip U1 and one end of a second capacitor C2, the positive electrode of the first diode 686d 9 is connected to the pin 2 of the regulating transformer T68656, the other end of the sixth resistor R828653, and the other end of the transformer chip U828653 are connected to the pin 6951 of, One end of a seventh resistor R7 is connected, the other end of a first capacitor C1 is connected with one end of a fifth resistor R5, the other end of the fifth resistor R5 is connected with a pin 2 of a regulating transformer T1, the other end of a third resistor R3 is connected with the cathode of a second diode D2, the anode of the second diode D2 is connected with a pin 5 and a pin 6 of a transforming chip U1, one end of a third capacitor C3 and a pin 2 of a regulating transformer T1, the pin 6 of the regulating transformer T1 is connected with a pin 7 of the transforming chip U1 and the other end of a second inductor L2, one end of an eighth resistor R8 is connected with a pin 3 of the transforming chip U1, one end of a ninth resistor R9 and one end of a tenth resistor R10 are both connected with a pin 4 of the transforming chip U1, the other end of a second polar capacitor EC2, the other end of the seventh resistor R7, the other end of the second capacitor C2, the other end of the second capacitor C9, the other end of the eighth resistor R8 and the ninth resistor R36, The other end of the tenth resistor R10 and the other end of the third capacitor C3 are both connected to the other end of the second inductor L2.

The voltage stabilizing module comprises a power chip with the model number of CLR6212SQA, wherein a pin 1, a pin 2, a pin 3, a pin 5, a pin 6 and a pin 8 of the power chip are all connected with a pin of an adjusting transformer T14, a pin 4 of the adjusting transformer T13, one end of an eleventh resistor R11, the positive electrode of a third polar capacitor EC3, one end of a twelfth resistor R12, the positive electrode of a first power interface 6 and the positive electrode of a second power interface 7 are all connected, the other end of an eleventh resistor R11, the negative electrode of a third polar capacitor EC3, the negative electrode of the first power interface 6 and the negative electrode of the second power interface 7 are all connected with a pin 4 of an adjusting transformer T1, the other end of the twelfth resistor R12 is connected with one end of a fourth capacitor C4 and a pin 5 of an interface driving chip U3, the other end of a fourth capacitor C4, a pin 2 of an interface driving chip U3 are all connected with a pin 4 of an adjusting transformer T1, the 4 feet of the interface driving chip U3 are connected with the digital cathode of the first power interface 6, the 3 feet of the interface driving chip U3 are connected with the digital anode of the first power interface 6, the 1 foot of the interface driving chip U3 is connected with the digital cathode of the second power interface 7, and the 6 feet of the interface driving chip U3 are connected with the digital anode of the second power interface 7.

The utility model discloses the working process: power adapter unit fixes in casing 1, it can multiplicable through plug 3 and wire 5 the utility model discloses a convenience, provide the electric energy for power adapter unit after 3 switch-on at the plug simultaneously, the alternating current passes through wire 5 and fuse F1 and transmits rectifier module, convert the alternating current to the direct current through rectifier module, and transmit the direct current to transformer module, transformer module receives when the electric energy after the alternating current conversion through transformer chip U1 control regulating transformer T11 foot and 2 feet, switch on in turn between 5 feet and the 6 feet, make 3 feet and 4 foot pieces of regulating transformer T1 produce stable direct current electric energy, this electric energy carries out steady voltage processing through the direct current electric energy that transformer T1 inductance produces and produces stable 5V voltage and provides the electric energy for mobile terminal through voltage stabilizing chip U2 of voltage stabilizing module simultaneously, voltage stabilizing chip U2 stable output leads to the electric energy respectively for first power source interface 6 and second power source interface after interface drive chip U3 7 to make first power source 6 and second power source 7 can be simultaneously for the mobile terminal power supply, further increase the utility model discloses a practicality and convenience.

The above-described embodiments are only preferred embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which are within the scope of the present invention.

Claims

1. A portable power adapter is characterized by comprising a shell, a plug and an adapter unit, wherein the adapter unit is fixedly arranged in the shell, the plug is electrically connected with the adapter unit through a lead, a limiting ring is fixedly arranged at one end, close to the adapter unit, of the lead, the limiting ring is fixed with one end of the shell, the adapter unit comprises a rectifying module, a voltage transformation module and a voltage stabilization module, the rectifying module is used for converting an external alternating current power supply into a direct current power supply and transmitting the direct current power supply to the voltage transformation module, the voltage transformation module is used for transforming the voltage of the received direct current power supply and transmitting the transformed electric energy to the voltage stabilization module, the voltage stabilization module is used for performing voltage stabilization output on the electric energy output by the transformation module, and 2 power interfaces for charging a mobile terminal are fixedly arranged at the other end of the shell, the power interface is electrically connected with the voltage stabilizing module.

2. The portable power adapter as described in claim 1, wherein said housing has a cover fixedly received at another end thereof, and 2 of said power ports are fixed to said cover.

3. The portable power adapter as described in claim 1, wherein said wires for connecting said plug and said adapter unit have a length of 0.5 to 1.5 meters.

4. The portable power adapter as claimed in claim 1, wherein the rectifying module is a full bridge rectifier.

5. The portable power adapter as described in claim 1, wherein said transformer module comprises a transformer chip of model LN1F15, said transformer chip being connected to said rectifier module, said transformer chip being further connected to a regulating transformer, said regulating transformer being connected to said regulator module.

6. The portable power adapter as claimed in claim 1, wherein the voltage stabilizing module includes a power chip of CLR6212SQA, wherein pins 1, 2, 3, 5, 6 and 8 of the power chip are all connected to pins 4 of the regulating transformer, pin 3 of the regulating transformer is connected to pins 4 of the power chip, one end of an eleventh resistor, an anode of a third polar capacitor, one end of a twelfth resistor, an anode of the first power interface and an anode of the second power interface, the other end of the eleventh resistor, a cathode of the third polar capacitor, a cathode of the first power interface and a cathode of the second power interface are all connected to pins 4 of the regulating transformer, the other end of the twelfth resistor is connected to one end of a fourth capacitor and a pin 5 of the interface driving chip, the other end of the fourth capacitor and a pin 2 of the interface driving chip are all connected to pins 4 of the regulating transformer, the 4 feet of the interface driving chip are connected with the digital cathode of the first power interface, the 3 feet of the interface driving chip are connected with the digital anode of the first power interface, the 1 foot of the interface driving chip is connected with the digital cathode of the second power interface, and the 6 feet of the interface driving chip are connected with the digital anode of the second power interface.