CN210245886U

CN210245886U - Multi-country portable charger of collapsible change formula

Info

Publication number: CN210245886U
Application number: CN201920974560.5U
Authority: CN
Inventors: Lingbin Wang; 王令彬; Yanhong Zhuo; 卓彦宏
Original assignee: Hon Kwang Electric Shenzhen Co ltd
Current assignee: Hon Kwang Electric Shenzhen Co ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-04-03
Anticipated expiration: 2029-06-26

Abstract

The utility model relates to a foldable and replaceable multinational portable charger, which comprises a power plug and an electric connector and is characterized in that the power plug comprises a power plug shell and plug pins which penetrate through and are folded on the side wall of the power plug shell, the side wall of the power plug is provided with a concave platform, and the plug pins are arranged in the concave platform; the electric connector comprises a connector shell and a connector main body, wherein a boss is arranged on the top surface of the connector main body, a strip-shaped groove is formed in the boss, an elastic clamping tenon adjusting disc is arranged on the bottom surface of the connector main body, and connector pins are arranged on the elastic clamping tenon adjusting disc; the shape of the boss is the same as that of the concave table, the shape of the strip-shaped groove is the same as that of the plug pin, the electric connector is inserted on the power plug, the boss is inserted in the concave table, and the plug pin is inserted in the strip-shaped groove. The product of the utility model is simple in structure, easy to produce, low in cost, convenient to popularize.

Description

Multi-country portable charger of collapsible change formula

Technical Field

The utility model relates to a charging device technical field, concretely relates to portable charger of multinational of collapsible change formula.

Background

In modern life, intelligent electronic products have been applied to the aspects of people's life, and many plugs used in various countries around the world are different. When people travel to different countries or work and live, the chargers with different models need to be carried, which brings inconvenience to people going out.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a portable charger for multiple countries with two-in-one foldable and replaceable functions for different countries.

A foldable and replaceable multi-country portable charger comprises a power plug and an electric connector, wherein the power plug comprises a power plug shell and plug pins which penetrate through and are folded on the side wall of the power plug shell, the side wall of the power plug is provided with a concave table, and the plug pins are arranged in the concave table; the electric connector comprises a connector shell and a connector main body, wherein a boss is arranged on the top surface of the connector main body, a strip-shaped groove is formed in the boss, an elastic clamping tenon adjusting disc is arranged on the bottom surface of the connector main body, and connector pins are arranged on the elastic clamping tenon adjusting disc; the shape of the boss is the same as that of the concave table, the shape of the strip-shaped groove is the same as that of the plug pin, the electric connector is inserted on the power plug, the boss is inserted in the concave table, and the plug pin is inserted in the strip-shaped groove.

Further, be equipped with the power supply contact piece in the connector main part, the power supply contact piece is used for electric connection the plug is participated in with the connector is participated in, the power supply contact piece includes power supply shell fragment end and power supply connection piece end, power supply shell fragment end has the bellied bending that makes progress, power supply connection piece end is the arc of epirelief, power supply shell fragment end with power supply connection piece end integrated into one piece.

Furthermore, the connector shell is sleeved on the outer side of the connector main body, a through hole is formed in one side of the surface of the boss, a first riveting piece penetrates through the through hole, a second riveting piece is arranged on the elastic clamping tenon adjusting disc, a spring is arranged between the first riveting piece and the second riveting piece, and the first riveting piece is matched with the second riveting piece.

Further, the connector pins have a variety of shapes, lengths and spacings to accommodate multi-country power outlets.

Furthermore, a metal elastic sheet is arranged in the power plug, the metal elastic sheet is provided with a fixed end, the fixed end is provided with a fixed hole, a fixed column is arranged on the inner side of the concave platform, the fixed column is provided with an internal thread, and the fixed hole is used for fixing the metal elastic sheet on the fixed column.

Furthermore, the metal elastic sheet is provided with a contact end, the contact end is an arc-shaped elastic sheet, and the contact end is bent towards the inner side wall of the concave table.

Furthermore, the middle of the metal elastic sheet is provided with a wiring end, the tail end of the wiring end is provided with a wiring hole, the wiring hole is used for connecting a power line, the wiring end is convexly arranged on the metal elastic sheet, the wiring end is provided with a bend, and the bend and the metal elastic sheet form a U-shaped clamping part.

Further, the power plug further comprises a pin assembly, the pin assembly comprises two plug pins and a pin fixing piece connected with the two plug pins, the pin fixing piece comprises a cylindrical rotating shaft, and the rotating shaft is used for enabling the plug pins to rotate.

Furthermore, the bottom of the pin fixing piece is provided with a convex connection point, the connection point is a cylinder or a hemisphere, the connection point is in contact with the contact end of the metal elastic sheet, and when the plug pin rotates to be perpendicular to the side wall of the power plug, the connection point falls into the U-shaped clamping portion.

Furthermore, a PCB circuit board is arranged in the power plug, an AC/DC inverter circuit and a USB interface circuit are arranged on the PCB circuit board, the AC/DC inverter circuit is used for converting alternating current with different input voltages into direct current, and the USB interface circuit is used for providing USB interfaces of different models.

In the foldable and replaceable multi-country portable charger, the power plug is provided with the plug pins and can be directly connected to a power socket, and the power plug can be plugged with the electric connector, so that the power plug is suitable for power sockets of different countries. The plug pins can be folded in the concave tables on the side walls of the power plug, when the plug pins are folded or protruded out of the side walls of the power plug in a rotating mode, the electric connectors can be plugged on the power plug, and the plug pins are folded and placed and are convenient to carry when people go out. The product of the utility model is simple in structure, easy to produce, low in cost, convenient to popularize.

Drawings

Fig. 1 is a schematic structural diagram of a power plug of a portable multi-country charger of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an electrical connector of a portable multi-country charger of the embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a pin assembly of a power plug of a portable multi-country charger of the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a metal spring of a power plug of a portable multi-country charger of an embodiment of the present invention.

Fig. 5 is an AC/DC inverter circuit diagram of the portable multi-country charger of the embodiment of the present invention.

Fig. 6 is a circuit diagram of a 20V output switch of a portable multi-country charger of the embodiment of the present invention.

Fig. 7 is a circuit diagram of the 20V output switch control circuit of the portable multi-country charger of the embodiment of the present invention.

Fig. 8 is a circuit diagram of the 5V output voltage feedback circuit of the portable multi-country charger of the embodiment of the present invention.

Detailed Description

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

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a foldable and replaceable multi-country portable charger according to an embodiment of the present invention is shown, including a power plug 100 and an electrical connector 200, where the power plug 100 includes a power plug housing 130 and plug pins 111 penetrating through and folded on a side wall 131 of the power plug housing, the side wall 131 of the power plug has a recessed table, and the plug pins 111 are disposed in the recessed table; the electrical connector 200 comprises a connector housing 210 and a connector main body 220, wherein a boss 221 is arranged on the top surface of the connector main body 220, a strip-shaped groove 2211 is arranged on the boss 221, an elastic latch adjusting disc 224 is arranged on the bottom surface of the connector main body 220, and a connector pin 223 is arranged on the elastic latch adjusting disc 224; the shape of the protrusion 221 is the same as that of the concave, the shape of the strip-shaped groove 2211 is the same as that of the plug pin 111, the electrical connector 200 is plugged onto the power plug 100, the protrusion 221 is plugged into the concave, and the plug pin 111 is plugged into the strip-shaped groove 2211.

Specifically, when the plug pins 111 are folded, the plug pins 111 are arranged in the concave, and when the electrical connector 200 is used in cooperation with the power plug 100, the boss 221 can be inserted into the boss 221 without rotating the plug pins 111 to a position perpendicular to the side wall 131 of the power plug, so that the plug pins 111 are inserted into the strip-shaped grooves 2211 on the boss 221 of the electrical connector 200, and the use is more convenient.

Further, a power supply contact piece 222 is disposed in the connector main body 220, the power supply contact piece 222 is used for electrically connecting the plug pin 111 and the connector pin 223, the power supply contact piece 222 includes a power supply spring piece end 2221 and a power supply connection piece end 2222, the power supply spring piece end 2221 is bent to protrude upwards, the power supply connection piece end 2222 is in an upward convex arc shape, and the power supply spring piece end 2221 and the power supply connection piece end 2222 are integrally formed. The connector housing is sleeved outside the connector main body 220, a gap is formed between the connector housing and the elastic latch adjusting disc 224 on the bottom surface of the connector main body 220, and when the elastic latch adjusting disc 224 is pulled out downwards, the connector main body 220 has a space for accommodating the plug pins 111.

Specifically, the power supply spring piece end 2221 is disposed in the strip-shaped groove 2211, and when the plug pins 111 are inserted into the strip-shaped groove 2211, the bending may make the power supply spring piece end 2221 stably contact with the plug pins 111. The area of the power supply connecting sheet end 2222 is larger than the area of the power supply spring sheet end 2221, the power supply connecting sheet end 2222 is arc-shaped, and the tail end thereof is tightly attached to the connector pin 223 under the action of the arc.

Further, boss 221 surface one side is equipped with the through-hole, wear to be equipped with first riveting 2241 in the through-hole, be equipped with second riveting 2242 on the elasticity trip adjustment disk 224, first riveting 2241 with be equipped with spring 2243 between the second riveting 2242, first riveting 2241 with second riveting 2242 agrees with.

Specifically, the first riveting member 2241 is pressed, and the bottom of the first riveting member 2241 presses the bend of the power supply elastic sheet end 2221, so that the power supply connection sheet end 2222 is tightly attached to the plug pin 111 and the connector pin 223.

Specifically, when the first rivet 2241 is lifted, the power supply connecting piece has a certain moving space, so that the plug pins are inserted into the strip-shaped groove 2211 and tightly attached to the power supply connecting piece end 2222 when rotating to the position perpendicular to the side wall 131 of the power plug.

Further, the connector pins 223 have different shapes, lengths and intervals so as to be adapted to power outlets of various countries.

Specifically, a plurality of the electrical connectors 200 having connector pins 223 of different shapes, lengths, spacings are configured to accommodate power outlets in different countries.

Further, the power plug 100 further comprises a pin assembly 210, wherein the pin assembly 210 comprises two plug pins 111 and a pin holder 112 connecting the two plug pins 111, and the pin holder 112 comprises a cylindrical rotating shaft for rotating the plug pins 111. The power plug 100 is internally provided with a metal elastic sheet 120, the metal elastic sheet 120 is provided with a fixed end, the fixed end is provided with a fixed hole, the inner side of the concave station is provided with a fixed column, the fixed column is provided with an internal thread, and the fixed hole is used for fixing the metal elastic sheet 120 on the fixed column. The metal spring plate 120 has a contact end 122, the contact end 122 is an arc-shaped spring plate, and the contact end 122 is bent towards the inner side wall 131 of the concave table. The middle of the metal elastic sheet 120 is provided with a terminal 123, the tail end of the terminal 123 is provided with a wiring hole, the wiring hole is used for connecting a power line, the terminal 123 is convexly arranged on the metal elastic sheet 120, the terminal 123 is provided with a bend, and the bend and the metal elastic sheet 120 form a U-shaped clamping part. The bottom of the pin fixing member 112 has a raised connection point 113, the connection point 113 is a cylinder or a hemisphere, the connection point 113 contacts with the contact end 122 of the metal spring 120, and when the plug pin 111 rotates to be perpendicular to the side wall 131 of the power plug 100, the connection point 113 falls into the bottom of the U-shaped clamping portion.

Specifically, a through hole is formed in the bottom of a concave table of the power plug side wall 131, the plug pins 111 penetrate through the through hole, a rotating shaft groove is formed in the inner side of the power plug side wall 131, and the rotating shaft groove is matched with the rotating shaft to realize rotation of the plug pins 111.

Specifically, the terminal 123 protruding from the middle of the metal spring 120 and the contact end 122 form a U-shaped groove 124, the connection point 113 of the plug pin 111 slides in the U-shaped groove 124, and when the plug pin 111 rotates to be perpendicular to the side wall 131 of the power plug 100, the connection point 113 falls into the bottom of the U-shaped groove 124, so as to position the plug pin 111.

Specifically, the positioning end 121, the contact end 122 and the terminal 123 are integrally formed.

Further, a PCB circuit board 140 is disposed in the power plug 100, an AC/DC inverter circuit and a USB interface circuit are disposed on the PCB circuit board 140, the AC/DC inverter circuit is used to convert AC power with different input voltages into DC power, and the USB interface circuit is used to provide USB interfaces 150 with different types.

Specifically, please refer to fig. 5, 6, 7 and 8, which illustrate circuit diagrams of embodiments of the present invention for converting ac power with different input voltages into dc power. The input end is provided with a thermistor RT1, a fuse LF1/LF2 and a piezoresistor ZVR1, which play a role of overload protection to ensure the safe operation of the circuit. The input alternating voltage is converted into direct voltage through a rectifying and filtering circuit, and the direct voltage is output to a multi-stage adjustable direct voltage after passing through a PWM controller LD5763, a synchronous rectifying driver LD8523 and a USB quick charging chip LD6610, so that the high-pass 4.0+ quick charging scheme can be met.

Specifically, the USB interface circuit outputs various output voltages, for example: 5V and 20V, and the output voltage of the USB interface 150 is controlled by a corresponding switch circuit.

In the foldable and replaceable multi-country portable charger, the power plug 100 itself has the plug pins 111, and can be directly connected to a power socket, and the power plug 100 can be plugged with the electrical connector 200, so that the power plug 100 is suitable for power sockets of different countries. The plug pins 111 can be folded into the concave platforms of the side walls 131 of the power plug, when the plug pins 111 are folded or protruded from the side walls 131 of the power plug in a rotating manner, the electrical connector 200 can be plugged onto the power plug 100, and the plug pins 111 can be folded for carrying when going out. The product of the utility model is simple in structure, easy to produce, low in cost, convenient to popularize.

It should be noted that the present invention is not limited to the above embodiments, and other changes can be made by those skilled in the art according to the spirit of the present invention, and all the changes made according to the spirit of the present invention should be included in the scope of the present invention.

Claims

1. A foldable and replaceable multi-country portable charger comprises a power plug and an electric connector, and is characterized in that the power plug comprises a power plug shell and plug pins which penetrate through and are folded on the side wall of the power plug shell, the side wall of the power plug is provided with a concave table, and the plug pins are arranged in the concave table; the electric connector comprises a connector shell and a connector main body, wherein a boss is arranged on the top surface of the connector main body, a strip-shaped groove is formed in the boss, an elastic clamping tenon adjusting disc is arranged on the bottom surface of the connector main body, and connector pins are arranged on the elastic clamping tenon adjusting disc; the shape of the boss is the same as that of the concave table, the shape of the strip-shaped groove is the same as that of the plug pin, the electric connector is inserted on the power plug, the boss is inserted in the concave table, and the plug pin is inserted in the strip-shaped groove.

2. The portable multi-country charger according to claim 1, wherein a power supply contact piece is provided in the connector body, the power supply contact piece is used for electrically connecting the plug pin and the connector pin, the power supply contact piece includes a power supply spring piece end and a power supply connection piece end, the power supply spring piece end is bent to be convex upward, the power supply connection piece end is in an upward convex arc shape, and the power supply spring piece end and the power supply connection piece end are integrally formed.

3. The portable multi-country foldable and replaceable charger according to claim 1, wherein the connector housing is sleeved outside the connector body, a through hole is formed in one side of the surface of the boss, a first riveting member penetrates through the through hole, a second riveting member is arranged on the elastic latch adjusting disc, a spring is arranged between the first riveting member and the second riveting member, and the first riveting member is engaged with the second riveting member.

4. The portable, collapsible multi-country charger of claim 1 wherein said connector pins are of a variety of shapes, lengths and spacings to accommodate multi-country power outlets.

5. The portable multi-country foldable and replaceable charger according to claim 1, wherein a metal spring piece is arranged in the power plug, the metal spring piece is provided with a fixing end, the fixing end is provided with a fixing hole, a fixing column is arranged on the inner side of the concave platform, the fixing column is provided with internal threads, and the fixing hole is used for fixing the metal spring piece on the fixing column.

6. The portable multi-country charger of claim 5, wherein the metal spring plate has a contact end, the contact end is an arc-shaped spring plate, and the contact end is bent towards the inner side wall of the concave table.

7. The portable multi-country charger according to claim 6, wherein the metal spring plate has a terminal at the middle, the terminal has a wiring hole at the end for connecting a power cord, the terminal is protruded from the metal spring plate, the terminal has a bend, and the bend and the metal spring plate form a U-shaped clamping portion.

8. The portable, collapsible multi-country charger according to claim 7, characterised in that said power plug further includes a pin assembly including two of said plug pins and a pin holder connecting the two of said plug pins, said pin holder including a cylindrical rotary shaft for rotating said plug pins.

9. The portable multi-country foldable and replaceable charger according to claim 8, wherein the pin fixing member has a protruding connection point at the bottom thereof, the connection point is a cylinder or a hemisphere, the connection point contacts with the contact end of the metal spring, and when the plug pin is rotated to be perpendicular to the side wall of the power plug, the connection point falls into the U-shaped holding portion.

10. The portable multi-country charger according to claim 1, wherein a PCB circuit board is provided in the power plug, the PCB circuit board is provided with an AC/DC inverter circuit and a USB interface circuit, the AC/DC inverter circuit is configured to convert AC with different input voltages into DC, and the USB interface circuit is configured to provide USB interfaces with different types.