TWI413320B - Power adapter with replaceable plug - Google Patents

Abstract

A power adapter with replaceable plug includes a plug seat, a plug and an electrical element. The plug has a top face formed with a recess. A slot is formed on the wall of the recess. The plug seat is formed with a protrusion which hooks the slot when the plug is engaged with the plug seat. A press portion is also formed on the plug seat to move the protrusion from the slot when being pressed, so that the plug is able to retreat from the plug seat.

Description

Power adapter with replaceable plug

This invention relates to power adapters, and more particularly to a power adapter for an interchangeable plug.

The general household AC power socket and the matching power plug are not unified in various regions of the world, and the power supply in different regions of the world also has different standards. Therefore, when users purchase different specifications of electronic and electrical products, or When a user travels abroad or on a business trip, the power plug of the electronic product they use may not be plugged into a local wall outlet.

To this end, some manufacturers have developed power adapters with a variety of international specifications. However, relatively speaking, the power adapter having various international specifications has a relatively complicated structure and is prone to malfunction. In addition, although there are manufacturers of modular power adapters with replaceable plug structures, it is necessary to provide a new type of power adapter with a replaceable plug structure.

In view of this, it is necessary to provide a power adapter that can be replaced with a plug.

A power adapter for a replaceable plug, comprising: a plug having a surface and an opposite bottom surface, the surface having a set of plug pins, the bottom surface having a recess a recessed portion, the inner side of the recessed portion is provided with a card slot, the plug pin extends to the recessed portion to form an exposed plurality of electrode pins; a body is formed by a combination of an upper cover and a lower cover, and the surface of the lower cover extends a protruding portion having at least two elastic electrode sheets on the inner side of the protruding portion, wherein the protruding portion is provided with a resilient latch at a position corresponding to the slot on the plug, and a side of the elastic latch has a wedge on the side wall, and the wedge is at the plug After being assembled into the body, the card slot on the plug is stuck, and the end of the side wall has a pressing portion. The pressing portion exposes the plug after the plug is assembled into the body, and presses the pressing portion to make the wedge from the card on the plug. The slot is disengaged to disengage the plug from the body; and an electrical component is disposed inside the body and electrically connected to the elastic electrode piece, and the electrical component is connected to a power output end.

The plug of this type of adapter can be replaced, and the appropriate plug can be selected according to the local socket in different countries and regions, so that the adapter has wider applicability.

100‧‧‧Power adapter

10‧‧‧ Ontology

11‧‧‧Upper cover

12‧‧‧Under the cover

122‧‧‧Protruding

1221‧‧‧rails

1222‧‧‧ Guide slot

123‧‧‧Elastic electrode sheet

124‧‧‧Flexible cassette

125‧‧‧ oblique wedge

1251‧‧‧Resistance Department

1252‧‧‧Bevel

1242‧‧‧ Pressing Department

1243‧‧‧through hole

21‧‧‧Power output

30‧‧‧ plug

31‧‧‧ surface

32‧‧‧ bottom

312‧‧‧ plug pin

321‧‧‧Depression

3211‧‧‧rails

3212‧‧‧ Guide slot

3213‧‧‧ card slot

3214‧‧‧Protection shell

3215‧‧‧ openings

40‧‧‧ plug

50‧‧‧ plug

1 is a perspective view of a power adapter of a replaceable plug of the present invention.

2 is an exploded perspective view of a power adapter of the replaceable plug of the present invention.

3 is a schematic view of the bottom surface of the plug in the power adapter of the replaceable plug of the present invention.

4 is a schematic view of an elastic latch in a power adapter of a replaceable plug of the present invention.

Figure 5 is a cross-sectional view showing the power adapter of the replaceable plug of the present invention.

6 is a schematic view of a three-leg flat plug of the power adapter of the replaceable plug of the present invention.

Figure 7 is a perspective view of the three-leg flat plug of the power adapter of the replaceable plug of the present invention.

FIG. 8 is a schematic diagram of a double-foot circular pin of the power adapter of the replaceable plug of the present invention.

FIG. 9 is a schematic view of another angle of the double-foot circular pin of the power adapter of the replaceable plug of the present invention.

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

As shown in FIGS. 1 and 2, the plug adapter power adapter 100 of the present invention includes a body 10, an electrical component (not shown) disposed within the body 10, and a plug 30. The main body 10 is a hollow casing formed by a combination of an upper cover 11 and a lower cover 12, and a protruding portion 122 extends outwardly from the surface of the lower cover 12, and the protruding portion 122 has a hollow box shape at the protruding portion. The outer side wall of the 122 is provided with a sliding rail 1221 and a guiding slot 1222 for guiding the plug 30 to be assembled, and at least two elastic electrode pieces 123 are disposed on the inner side of the protruding portion 122, and the other elastic latch 124 is disposed on a side wall of the protruding portion 122. In the notch, the inserted latch 30 is latched, and the elastic latch 124 is substantially U-shaped. As shown in FIG. 3, the elastic latch 124 has a wedge 125 on one arm, and the wedge 125 has an offset. The end portion of the arm having the wedge 125 has a pressing portion 1242, and the other arm of the wedge 125 is bent outwardly in a direction perpendicular to the arm, and has a through hole 1243 at the extending portion. The elastic cassette 124 is fixed by bolts.

The electrical component is disposed inside the body 10 and electrically connected to the elastic electrode piece 123. The electrical component may include a transformer component, the electrical component is connected to a power output terminal 21, and the power output terminal 21 is used for connecting a power source. A device (not shown) takes electrical power introduced by the plug pin 312 of the plug 30 using an electrical device.

As shown in FIG. 2 and FIG. 4, the plug 30 has a surface 31 and an opposite bottom surface 32. The surface 3 has a set of plug pins 312 for contacting the elastic electrode sheets 123. The plug pins 312 conform to international standards. The bottom surface 32 has a recessed portion 321 . The recessed portion 321 defines a sliding rail 3211 and two guiding slots 3212 for guiding the plug 30 into the body 10 . The latching portion 321 is further provided with a latching slot 3213 . The plug pin 312 passes through the shell of the plug 30 . The body extends to the recessed portion 321 to form a plurality of exposed electrode pins 3121. A protective case 3214 is disposed on the surface of the recessed portion 321 corresponding to the electrode pin 3121. The protective case 3214 has an opening 3215 for the elastic electrode piece 123 to The plug pin 312 is in contact through the opening 3215.

Referring to Figures 6-9, there are two alternative plugs 40 and 50, respectively, which each have a configuration that conforms to the projections 122 on the body 10.

A plug suitable for the local outlet, such as plug 30, is selected to assemble the plug 30 to the lower cover 12. When assembling, the sliding rail 3211 and the guiding groove 3212 of the plug 30 are aligned with the guiding slot 1222 and the sliding rail 1221 of the lower cover 12, and then pushed further along the sliding rail 1221 or the guiding slot 1222 until the elastic latch 124 The upper wedge 125 locks the card slot 3213 on the plug 30 and can be used in the same manner as a normal power plug. When the pin element needs to be replaced, simply press down on the pressing portion 1242 to make the wedge The abutting portion 1251 of the 125 is disengaged from the card slot 3213 on the plug 30, and the plug 30 can be withdrawn and removed.

The positive effect of the invention is that the plug of the adapter can be replaced, and the appropriate plug can be selected according to the form of the local socket in different countries and regions, so that the adapter has wider applicability for sale around the world and The power adapter of the replaceable plug is provided with a protective cover at the electrode pin, which can effectively prevent an electric shock caused by accidentally inserting the plug into the socket separately.

10‧‧‧ Ontology

11‧‧‧Upper cover

12‧‧‧Under the cover

122‧‧‧Protruding

1221‧‧‧rails

1222‧‧‧ Guide slot

123‧‧‧Elastic electrode sheet

124‧‧‧Carmen

30‧‧‧ plug

31‧‧‧ surface

312‧‧‧ plug pin

Claims (6)

A power adapter for a replaceable plug, comprising: a plug having a surface and an opposite bottom surface, the surface having a set of plug pins, the bottom surface having a recess, the inner side of the recess being provided with a card slot, the plug pin Extending to the recessed portion to form an exposed plurality of electrode pins; a body formed by an upper cover and a lower cover, a surface of the lower cover extending from a protrusion, and at least two elastic electrode sheets are disposed on the inner side of the protrusion The protruding portion is provided with a resilient latch at a position corresponding to the slot on the plug, the elastic latch includes two arms, and one arm of the elastic latch has a wedge, the wedge is disposed after the plug is assembled into the body The card slot on the plug is caught, and the other arm of the elastic latch is bent outwardly in a direction perpendicular to the arm, and has a through hole at the extension for fixing the elastic latch by bolt; the elastic latch The end of the arm having the wedge has a pressing portion. The pressing portion exposes the plug after the plug is assembled into the body, and the pressing portion is pressed to release the wedge from the slot on the plug. From the ontology Detachment; and an electrical element disposed inside the body and connected with said elastic sheet electrode electrically, the electrical component is connected to a power output. The power adapter of the replaceable plug of claim 1, wherein the recessed surface is provided with a protective cover with an opening at the electrode pin so that the elastic electrode piece and the plug pin are in contact with each other through the opening. The power adapter of the replaceable plug of claim 1, wherein at least one slide rail is disposed outside the protrusion on the body, and the recessed portion of the plug is The inner side is provided with a guiding groove corresponding to the sliding rail or the guiding groove, and the cooperation of the guiding groove and the sliding rail guides the plug into the body. The power adapter of the interchangeable plug of claim 1, wherein at least one guiding groove is disposed outside the protruding portion of the body, and the inner side of the concave portion of the plug is provided with a sliding corresponding to the sliding rail or the guiding slot. The rail, the engagement of the guide slot with the slide rail guides the plug into the body. The power adapter of the interchangeable plug of claim 1, wherein the electrical component comprises a transformer component. The power adapter of the replaceable plug according to claim 1, wherein the plug pin conforms to international standards.