CN203761275U - Easy-to-use power adapter - Google Patents

Abstract

The utility model relates to a power adapter with a conveniently removable plug, which is mainly characterized in that a removable groove is formed at one end of a shell for the removable arrangement of a power plug; the drawing and replacing groove has a peripheral wall and a bottom, the peripheral wall is in a perfect circle shape and forms an opening on the corresponding side of the shell, a movable fastener is movably arranged between the openings, the bottom of the drawing and replacing groove is provided with two conductive terminals for forming electric connection with a power plug arranged in the drawing and replacing groove, the bottom forms a slope with an outward inclined angle at the opening corresponding to the peripheral wall, more than one rail groove is formed on the slope, and a rail block formed at the bottom of the movable fastener is arranged between the rail grooves in a sliding way; the power plug can be conveniently replaced by utilizing the movable fastener arranged on the replacing groove of the shell; the power plug can rotate in the drawing and changing groove to change the direction and fold and store, so as to adapt to the use environment conditions.

Description

Easy-to-use power adapter

technical field

The utility model relates to a power adapter, in particular to a power adapter which is convenient to replace plugs of various specifications and can change the direction of the plugs.

Background technique

At present, the working power of many electronic devices is supplied by direct current. In addition to using batteries, most of them also support the use of power adapters to convert alternating current into direct current for supply. Therefore, the power adapter is an electrical product accessory that is often used by ordinary people. After the popularity of portable electronic products, the power adapter has also become one of the necessary electrical accessories. The product is charging. At present, many power adapters have a wide range of voltage applications, and can roughly meet the different voltage specifications around the world. However, the troublesome thing is that the power plugs in different countries are not the same. .

And one of the solutions to the above-mentioned problems is to use an adapter plug, that is, to assemble an adapter plug that conforms to the local plug form on the original plug of the power adapter. This method is certainly feasible, but the derived problem is that the accessories to be carried and the space occupied will increase.

Furthermore, because the power adapter has a power conversion circuit inside, it has a considerable volume. can be inserted in a specific direction), it will cause trouble for the use of the power adapter.

From the above, it can be seen that the existing power adapter still has many problems in changing the plug form and adapting to the use environment conditions, so it needs further review and seeks a feasible solution.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a power adapter that is easy to replace the plug. Connecting the plug; Another purpose of the utility model is that the replaceable plug on the power adapter provided by the utility model can be rotated and changed direction, and has strong adaptability to the use environment.

The main technical solution adopted to achieve the above-mentioned purpose is to make the aforementioned power adapter for plug replacement conveniently include: a casing, one end of which forms a replacement slot, and the replacement slot has a peripheral wall and a bottom, and the peripheral wall is in the shape of an arc And an opening is formed on the corresponding side of the casing; the bottom of the replacement slot includes a platform and a slope, the platform is protrudingly provided with two conductive terminals, the slope is correspondingly located at the opening of the peripheral wall, and the slope More than one track groove is formed; a movable fastener is movably arranged at the opening of the aforementioned peripheral wall, the movable fastener has an inner side wall and a bottom, the inner side wall is arc-shaped and has the same shape as the peripheral wall of the replacement slot The bottom of the matching circle has an inclination matching the aforementioned slope and more than one rail block is formed, which matches with the rail grooves on the aforementioned casing and slides between them.

Preferably, the replacement slot is recessed downwards from the top of the casing, the peripheral wall forms an opening on the corresponding side of the casing, the peripheral wall has a perfect circumference relative to the inner part of the opening, and the upper end of the peripheral wall A locking rib is formed at the position; a locking rib is formed on the inner side wall of the movable fastener, and the locking rib corresponds to the locking rib at the upper end of the peripheral wall.

Preferably, the slope of the replacement slot is correspondingly located at the opening of the peripheral wall, and slopes downward from the inner side of the opening, and more than one hook block is further formed on the slope, and the hook block is sheathed by one end of a spring; The movable fastener is hollow so that its bottom part is hollow, and the hook block on the slope can be inserted therein, and the other end of the spring on the hook block is held against the inner surface of the inner wall of the movable fastener.

Preferably, the movable fastener further has a top and an outer wall, the top is further formed with two parallel notches, and the notches penetrate the inner wall and the outer wall.

Preferably, four rail grooves are formed on the slope of the replacement slot, and the rail grooves are parallel to each other in the same direction.

Preferably, the free end of the rail block at the bottom of the movable fastener is formed with a protrusion protruding in a right angle direction, which is used to stop the inner groove edge of the rail groove formed on the slope.

Preferably, the power adapter that facilitates plug replacement further includes more than one power plug, and is arranged in the replacement slot of the casing; the power plug has a cylindrical hollow body, and the power plug has a The top, a bottom and a radial wall, the top is provided with more than two electrical connection pins; the bottom of the power plug is formed with two opposite arc grooves, and the inner groove edges of the two arc grooves are respectively provided with an electrical contact The length of the two electrical contact pieces matches the length of the arc groove, and they are respectively electrically connected to the top contact pins.

Preferably, the top of the power plug has two power pins, and the top of the power plug is formed with two grooves, and one ends of the two power pins are respectively pivoted on the inner ends of the two grooves.

Preferably, the outer ends of the two grooves on the top of the power plug run through its radial wall, and the length of the two connecting pins is longer than the grooves; the movable fastener has a top, and two notches are formed on the top, and the notches Corresponds to the groove on the top of the power plug.

Preferably, a limiting rib is formed on the radial wall of the power plug, and the limiting rib is parallel to the axial direction of the power plug.

The beneficial effect of the utility model is that: the replacement slot of the above-mentioned casing has movable fasteners, and different types of power plugs can be easily replaced, so users can replace the power plugs that meet the requirements according to their own needs. In order to solve the problem of taking up space when carrying it; in addition, the replacement slot on the casing is circular so that the power plug in it can be rotated and changed direction, so as to adapt to the environmental conditions of the place of use.

Description of drawings

Fig. 1 is a perspective view of the utility model.

Fig. 2 is an exploded view of a preferred embodiment of the present invention.

Fig. 3 is a sectional view of a preferred embodiment of the present invention.

Fig. 4 is a cross-sectional view and a schematic diagram of the action of a preferred embodiment of the present invention.

Fig. 5 is a combined perspective view of a preferred embodiment of the present invention.

Fig. 6 is a combined sectional view of a preferred embodiment of the present invention.

Fig. 7 is another cross-sectional view and schematic diagram of the action of a preferred embodiment of the present invention.

Fig. 8 is a top plan view of a preferred embodiment of the present invention.

Fig. 9 is a top view plane and a schematic diagram of the action of a preferred embodiment of the present invention.

Description of main component symbols:

10 enclosure 11 access slot

12 Peripheral wall 120, 210 Detent rib

13 Bottom 130 Platform

131 ramp 132 rail groove

133 Hook block 14, 15 Conductive terminal

16 springs

20 movable fastener 21 inner wall

22 Outer side wall 23 Bottom

230 rail block 24 top

240 gaps

30. 30A～30C power plug 31 power pin

32 groove 33 arc groove

34 Electrical contact piece 35 Locking groove

36 Limiting ribs.

Detailed ways

Regarding a preferred embodiment of the present utility model, please refer to Fig. 1, which includes a casing 10 and more than one power plug 30, and its main technical feature is to provide a replaceable structure, so that the machine of the power adapter The shell 10 can conveniently replace various types of power plugs 30A-30C. For further specific structures of the housing 10 and the power plugs 30 , 30A-30C, please refer to FIG. 2 .

The casing 10 can be a cube of any shape, and its interior is hollow and provided with a power conversion circuit (not shown in the figure), so that a power supply of one specification can be converted into another specification (such as alternating current into direct current). The power conversion part is not the technology claimed by the utility model, and its specific structure will not be further described in detail. In this embodiment, the casing 10 is roughly a rectangular body, its front and rear walls, top and bottom are parallel to each other, and its two sides are opposite arc edges; the casing 10 is formed with a drawer near one end The replacement slot 11 is recessed downward from the top of the casing 10, and has a peripheral wall 12 and a bottom 13. The peripheral wall 12 has a perfect circle in whole or in part, and it is on the corresponding side of the casing 10. An opening is formed on the side. In the embodiment, the peripheral wall 12 has a perfect circumference relative to the inner portion of the opening, and a locking rib 120 is formed at the upper end of the peripheral wall; the bottom 13 of the replacement slot 11 includes a platform 130 And a slope 131, the platform 130 is located at a horizontal angle, on which two conductive terminals 14, 15 protrude vertically, and the two conductive terminals 14, 15 are connected to the power conversion circuit inside the casing 10; the slope 131 is correspondingly located At the opening of the peripheral wall 12, and slanting downward from the inner side of the opening, more than one rail groove 132 and more than one hook block 133 are formed on the slope 131. In this embodiment, four rail grooves 132 are formed on the slope 131. They are parallel to each other in the same direction. In addition, there are two hook blocks 133 for fixing an elastic element respectively. In this embodiment, a spring 16 is used, and one end of the spring 16 is sheathed on the hook block 133 .

The casing 10 is further provided with a movable fastener 20 at the opening of the peripheral wall 12 of the replacement slot 11. Please refer to FIG. 2 and FIG. 3, the movable fastener 20 has an inner side wall 21 and an outer side wall 22 , a bottom 23 and a top 24, the inner side wall 21 of which is arc-shaped and has a circumference matching the peripheral wall 12 of the replacement slot 11, and a locking rib 210 is formed at the upper end of the inner side wall 21, and the locking rib 210 corresponds to The locking rib 120 on the upper end of the peripheral wall 12 is used to cooperate with and limit the inserted power plug.

The outer wall 22 of the movable fastener 20 matches the radian of the corresponding side of the casing 10; its bottom 23 has a slope matching the slope 131 and is formed with more than one rail block 230, which corresponds to the rail on the slope 131. The free end of the rail block 230 is formed with a convex portion protruding in a right angle direction, which is used to stop on the edge of the inner side of the rail groove 132 and has a non-return function. In this embodiment, the movable fastener 20 is hollow so that the bottom 23 is partly hollow, and the hook block 133 on the slope 131 can pass through it, and the other end of the spring 16 on the hook block 133 will resist On the inner surface of the inner wall 21 of the movable fastener 20, the movable fastener 20 is provided with reciprocating elasticity for moving.

In this embodiment, the top 24 of the movable fastener 20 is further formed with two parallel notches 240, and the notches 240 run through the inner side wall 21 and the outer side wall 22, so as to cooperate with the power connection pin on the power plug 30 to be flipped and stored. .

The replacement slot 11 of the above-mentioned casing 10 cooperates with the movable fastener 20 to facilitate the replacement of different power plugs 30, 30A-30C. Regarding the matching structure of each power plug 30, 30A-30C and the casing 10, here Take the power plug 30 as an example to further describe its structure in detail as follows:

The power plug 30 has a cylindrical hollow body with a top, a bottom and a radial wall, and the top is provided with more than two power pins 31 for plugging into the power socket; in this embodiment, It has two power pins 31 and is designed to be reversible. After being reversed and folded, it will be lower than the plane of the top of the power plug 30 to reduce the occupied space. In order to cooperate with the above-mentioned overturning design, two grooves 32 are formed on the top of the power plug 30, and the outer ends of the two grooves 32 run through the radial wall. The inner end can be pivoted and folded toward the outer end. In this embodiment, the length of the two contact pins 31 is greater than the groove 32, so after being folded, the other ends of the two contact pins 31 will pass through the radial wall and be located between the gaps 240 of the movable fastener 20 (as shown in FIG. 4).

Still referring to Fig. 2, the bottom of the power plug 30 is formed with two opposite arc grooves 33, and the inner edge of the two arc grooves 33 is respectively provided with an electrical contact piece 34, the length of the two electrical contact pieces 34 is It matches the slot length of the arc slot 33 and is electrically connected to the top contact pins 31 respectively. In addition, the arc groove 33 at the bottom of the power plug 30 and the electrical contact piece 34 on the inside edge of the groove correspond to the conductive terminals 14 and 15 in the replacement slot 11 of the casing 10 respectively. When the power plug 30 is inserted into the replacement slot 11 of the casing 10 Inside, the conductive terminals 14, 15 will correspondingly penetrate into the arc groove 33 at the bottom of the power plug 30 and form electrical contact with the electrical contact piece 34. When the power plug 30 rotates, the arc groove 33 at the bottom will contact the conductive terminals 14, 15. Relatively move, but still maintain electrical contact with the electrical contact piece 34. Furthermore, an annular locking groove 35 is formed on the upper end of the radial wall of the power plug 30 , and the locking groove 35 corresponds to the locking ribs 120 , 210 on the upper end of the peripheral wall 12 and the upper end of the inner wall 21 of the movable fastener 20 .

In this embodiment, a limiting rib 36 is formed on the radial wall of the power plug 30, the limiting rib 36 is parallel to the axial direction of the power plug 30, and corresponds to two sides of the peripheral wall 12 in the replacement slot 11. end, thereby limiting the range of forward and reverse rotation of the power plug 30 .

The specific structure of a preferred embodiment of the present invention can be understood from the above description, and the operation mode of replacing the power plug 30 on the casing 10 of the power adapter of the present invention is described in detail as follows:

First please refer to FIG. 5 , when the power plug 30 is inserted into the replacement slot 11 of the casing 10 from the vertical direction, the bottom edge of the power plug 30 will touch the upper end of the peripheral wall 12 of the replacement slot 11 and the inner wall 21 of the movable fastener 20 The locking ribs 120 and 210 at the upper end are pressed down further, and the movable fastener 20 will be pushed away obliquely downward along the slope 131 of the replacement slot 11. At this time, the spring 16 in the movable fastener 20 will be compressed; then the power plug 30 will pass through the locking ribs 120, 210, when the locking groove 35 on the radial wall of the power plug 30 aligns with the locking ribs 120, 120, 210. At this time, the resilience of the spring 16 pushes the movable fastener 20 back toward the direction of the power plug 30, so that the locking ribs 120, 210 on the upper end of the surrounding wall 12 and the upper end of the inner wall 21 of the movable fastener 20 will be simultaneously locked into the power plug 30. The locking groove 35 (as shown in FIG. 6 ), and the vertical movement of the power plug 30 produces locking, so that the power plug 30 can be installed in the replacement slot 11 of the casing 10 .

If the power plug 30 must be taken out from the replacement slot 11 of the casing 10 if the power plug of different forms is to be replaced, the movable fastener 20 is pushed outwards in an oblique downward direction (as shown in Figure 7), so that the movable The spring 16 in the fastener 20 is compressed, and the locking rib 210 on the inner side wall 21 is separated from the locking groove 35 at the upper end of the radial wall of the power plug 30, so as to release the restriction on the power plug 30 and enlarge the replacement slot 11, the locking groove 35 of the power plug 30 can be further separated from the locking rib 120 on the upper end of the surrounding wall 12, so that the power plug 30 can be taken out from the replacement slot 11, and another power plug of a different form can be used as described above. Way into the replacement slot 11, and conveniently complete the replacement.

The feature of the utility model is that besides the above-mentioned convenient replacement of the power plug, another feature is that the power plug 30 on the casing 10 can rotate and change its direction according to the environmental conditions of the use occasion, as shown in FIG. Assuming a state of use of the power plug 30, the two power pins 31 of the power plug 30 face up and down as shown in the drawings. Jack direction does not match), then the direction of the power plug 30 can be rotated, as shown in Figure 9, the power plug 30 is rotated 90 degrees compared to the direction shown in Figure 8, so that the two power plugs on it The pins 31 are left and right facing each other. Due to the matching design of the arc groove 33 at the bottom of the power plug 30, the electrical contact piece 34 and the conductive terminals 14, 15 in the replacement slot 11 of the casing 10, the rotation of the power plug 30 is not limited to the angle shown in the foregoing drawings, and can be It is more flexible to change its angle according to the user's own needs.

Claims (10)

1. A power adapter for convenient plug replacement, characterized in that: the power adapter for convenient plug replacement includes: A casing, one end of the casing forms a replacement slot, the replacement slot has a peripheral wall and a bottom, the peripheral wall is arc-shaped and forms an opening on the corresponding side of the casing; the replacement slot The bottom includes a platform and a slope. The platform is protrudingly provided with two conductive terminals. The slope is correspondingly located at the opening of the peripheral wall, and more than one rail groove is formed on the slope; A movable fastener, the movable fastener is movably arranged at the opening of the peripheral wall, the movable fastener has an inner side wall and a bottom, and the inner side wall is arc-shaped to match the peripheral wall of the replacement slot The bottom has a slope matching the slope and is formed with more than one rail block, and the rail block is matched with the rail grooves on the casing and is slidably arranged between the rail grooves. 2. The power adapter according to claim 1, wherein the replacement slot is recessed downward from the top of the casing, and the peripheral wall forms an opening on the corresponding side of the casing. The peripheral wall has a perfect circumference relative to the inner part of the opening, and a locking rib is formed at the upper end of the peripheral wall; A locking rib is formed on the inner side wall of the movable fastener, and the locking rib corresponds to the locking rib at the upper end of the peripheral wall. 3. The power adapter according to claim 2, characterized in that: the slope of the replacement slot is located corresponding to the opening of the peripheral wall, and slopes downward from the inside of the opening to the outside, and the slope is further formed with More than one hook block, the hook block is sleeved on one end of a spring; The movable fastener is hollow so that the bottom of the movable fastener is partially hollow, and the hook on the slope can be inserted between the movable fasteners, and the other end of the spring on the hook block is held against the inner wall of the movable fastener. on the inner side. 4. The power adapter according to claim 3, wherein the movable fastener further has a top and an outer wall, and the top is further formed with two parallel notches, the notches Through the inner and outer walls. 5 . The power adapter according to claim 1 , wherein four rail grooves are formed on the slope of the replacement slot, and the rail grooves are parallel to each other in the same direction. 6 . 6. The power adapter according to claim 5, characterized in that: the rail block at the bottom of the movable fastener has a convex portion protruding in a right angle direction at the free end, which is formed by blocking on the slope The inner groove edge of the rail groove. 7. The power adapter for convenient plug replacement according to any one of claims 1 to 6, characterized in that: the power adapter for easy plug replacement further includes more than one power plug, and is arranged on the casing In the replacement slot; The power plug has a cylindrical hollow body, the power plug has a top, a bottom and a radial wall, the top is provided with more than two power pins; the bottom of the power plug is formed with two For the opposite arc grooves, an electrical contact piece is respectively provided at the edge of the inner side of the two arc grooves, the length of the two electrical contact pieces matches the length of the arc groove, and they are respectively electrically connected to the electrical connection pins on the top. 8. The power adapter according to claim 7, characterized in that: the top of the power plug has two power pins, and the top of the power plug is formed with two grooves, the two power pins One end of the pin is respectively pivotally arranged at the inner side ends of the two grooves. 9. The power adapter according to claim 8, wherein the outer ends of the two grooves on the top of the power plug run through the radial wall of the power plug, and the length of the two connecting pins is longer than the grooves. ; The movable fastener has a top, and two notches are formed on the top, and the notches correspond to the grooves on the top of the power plug. 10 . The power adapter according to claim 7 , wherein a limiting rib is formed on the radial wall of the power plug, and the limiting rib is parallel to the axial direction of the power plug. 11 .