CN113573509B - Power adapter - Google Patents

Abstract

The present application relates to a power adapter comprising: a housing. A protective cover. And a hinge connecting the housing and the protective cover. One of the hinge and the protective cover is provided with a first convex column, and the other is provided with a first guide groove. One of the hinge and the protective cover is provided with a first positioning block, and the other one is provided with a first positioning groove. The first convex column can slide along the first guide groove, and the first positioning block rotates in the first positioning groove, so that the protective cover rotates relative to the hinge. One of the hinge and the shell is provided with a second convex column, and the other is provided with a second guide groove. One of the hinge and the shell is provided with a second positioning block, and the other is provided with a second positioning groove. The second convex column can slide along the second guide groove, and the second positioning block rotates in the second positioning groove, so that the shell rotates relative to the hinge. Wherein, the visor can be for casing rotation in opposite directions or back to back. The requirement that the protective cover rotates in opposite directions or back to back relative to the shell can be met through the hinge, the hinge is simple in structure, and related parts are few.

Description

Power adapter

Technical Field

The present application relates to the field of electronic products, and more particularly, to a power adapter.

Background

The power adapter exists in the market, and when the hinge is connected with an adjacent structure to realize rotation, the hinge is complex, the number of related parts is large, and the cost is high.

Disclosure of Invention

The embodiment of the application provides a power adapter to solve the technical problem.

A power adapter, comprising:

a housing;

a protective cover; and

a hinge connecting the housing and the protective cover; one of the hinge and the protective cover is provided with a first convex column, and the other one of the hinge and the protective cover is provided with a first guide groove; one of the hinge and the protective cover is provided with a first positioning block, and the other one of the hinge and the protective cover is provided with a first positioning groove; the first convex column can slide along the first guide groove, and the first positioning block rotates in the first positioning groove, so that the protective cover rotates relative to the hinge; one of the hinge and the shell is provided with a second convex column, and the other one of the hinge and the shell is provided with a second guide groove; one of the hinge and the shell is provided with a second positioning block, and the other one of the hinge and the shell is provided with a second positioning groove; the second convex column can slide along the second guide groove, and the second positioning block rotates in the second positioning groove, so that the shell rotates relative to the hinge;

wherein, the visor can for the casing rotates towards or away from each other.

According to the power adapter, the protective cover and the hinge slide in the first guide groove through the first convex column, and the first positioning block rotates in the first positioning groove, so that the protective cover rotates relative to the hinge. The shell and the hinge are rotated relative to the hinge through the sliding of the second convex column in the second guide groove and the rotation of the second positioning block in the second positioning groove. The first positioning block and the second positioning block can play a limiting role, and the protective cover and the shell are prevented from only sliding relative to the hinge and not rotating. And then the protection cover can rotate towards or away from the shell through the hinge. The hinge is simple in structure, involves few parts, and can meet the rotation requirement of the protective cover relative to the shell.

In one embodiment, the plug comprises a plug pin arranged on the shell; the protective cover can rotate relative to the shell to have a first state and a second state; in the first state, at least part of the pin is accommodated in the protective cover; in the second state, the pins are exposed.

In one embodiment, the shell has a first surface, and the pins protrude from the first surface; the protective cover comprises a second surface;

in the second state, the first surface and the second surface form a working matching surface, and the distance between the pins and the edge of the working matching surface is not less than a preset value.

In one embodiment, the predetermined value is 5.1mm or 6.5mm or 7.9 mm.

In one embodiment, the first positioning block has a major axis and a minor axis, and the second positioning block has a major axis and a minor axis;

in the process that the power adapter is switched from the first state to the second state, the minimum distance between the first positioning block and the groove wall of the first positioning groove is gradually increased, and the minimum distance between the second positioning block and the groove wall of the second positioning groove is gradually increased.

In one embodiment, the cross sections of the first positioning block and the second positioning block are both oval;

in the first state, the long axis of the cross section of the first positioning block is perpendicular to the groove wall of the first positioning groove, and the long axis of the cross section of the second positioning block is perpendicular to the groove wall of the second positioning groove;

in the second state, the short axis of the cross section of the first positioning block is perpendicular to the groove wall of the first positioning groove, and the short axis of the cross section of the second positioning block is perpendicular to the groove wall of the second positioning groove.

In one embodiment, in the first state, the first convex column is located at one end of the first guide groove far away from the shell, and the second convex column is located at one end of the second guide groove far away from the protective cover;

when the first guide groove is in the first state, the first convex column is positioned at one end of the first guide groove, and the second convex column is positioned at the other end of the second guide groove;

the protective cover and the shell can be oppositely rotated by a set angle from the first state to be switched to the second state.

In one embodiment, the set angle is 90 °.

In one embodiment, the hinge comprises a base, and the first convex column and the second convex column are arranged on the base; the first guide groove and the second guide groove are arc-shaped grooves and are respectively arranged on the protective cover and the shell.

In one embodiment, the first guide groove and the second guide groove are both arc-shaped grooves, and the central angle subtended by the first guide groove and the second guide groove is smaller than 90 °.

In one embodiment, between the first state and the second state, the centers of circles of the pair of the first guide groove and the second guide groove are respectively located on the sides of the first guide groove and the second guide groove, which face away from each other.

In one embodiment, the first positioning block and the second positioning block are fixed to the base, and the first positioning slot and the second positioning slot are respectively formed in the protective cover and the housing.

In one embodiment, the first positioning groove is a straight groove and is communicated with the first guide groove; the second positioning groove is a straight groove and is communicated with the second guide groove.

In one embodiment, the protective cover comprises a first protective cover and a second protective cover;

in the first state, the first protective cover and the second protective cover are attached and fixed;

under the second state, first visor with the second visor laminates respectively and is fixed in the both sides that carry on the back of the body mutually.

In one embodiment, the housing comprises a third surface and a fourth surface which are opposite to each other, and the first surface is connected between the third surface and the fourth surface; the first protective cover comprises a fifth surface and a sixth surface which are arranged oppositely, and the second surface is connected between the fifth surface and the sixth surface; the second protective cover comprises a seventh surface, an eighth surface and a sixteenth surface, wherein the seventh surface and the eighth surface are arranged oppositely, and the sixteenth surface is connected between the seventh surface and the eighth surface;

in the first state, the sixth surface and the eighth surface are attached, the fifth surface and the third surface are flush, and the seventh surface and the fourth surface are flush;

in the second state, the fifth surface is attached to the third surface, the seventh surface is attached to the fourth surface, and the second surface, the first surface, and the sixteenth surface together form the working mating surface.

In one embodiment, a first magnetic body is arranged in the first protective cover, and a second magnetic body is arranged in the second protective cover;

in the first state, the polarities of the two adjacent poles of the first magnetic body and the second magnetic body are opposite, and the first protective cover and the second protective cover are magnetically attracted, attached and fixed through the first magnetic body and the second magnetic body;

under the second state, first magnetic substance with the two poles of the earth polarity that the second magnetic substance is close to is opposite, first visor with the second visor passes through first magnetic substance with second magnetic substance magnetism is inhaled and is laminated respectively and be fixed in the both sides of the back of the body of casing mutually.

In one embodiment, a first magnetic body is arranged in the first protective cover, and a second magnetic body is arranged in the second protective cover;

when the second protective cover is in the second state and the angle between the first protective cover and the shell is larger than the critical angle, the first magnetic body and the second magnetic body can attract each other so that the first protective cover and the second protective cover rotate to the first state;

the second visor is located the first state, first protective cover with when the angle between the casing is less than critical angle, first magnetic substance with the second magnetic substance can the actuation mutually so that first protective cover with the second visor rotates to the second state.

In one embodiment, the first protective cover defines a first slot, and the second protective cover defines a second slot;

in the first state, the first slot is communicated with the second slot, and at least part of the pin is accommodated in the first slot and the second slot.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of a power adapter according to an embodiment, wherein the power adapter is in a first state;

FIG. 2 is a side view of the power adapter of FIG. 1;

FIG. 3 is a bottom view of the power adapter of FIG. 1;

FIG. 4 is a perspective view of the power adapter of FIG. 1, wherein the power adapter is positioned between a first state and a second state;

FIG. 5 is a perspective view of the power adapter of FIG. 1, wherein the power adapter is in a second state;

FIG. 6 is an exploded view of the power adapter of FIG. 1;

FIG. 7 is a side view of the power adapter of FIG. 1, with the power adapter between a first state and a second state;

FIG. 8 is a side view of the power adapter of FIG. 5;

FIG. 9 is a cross-sectional perspective view of a first housing of the power adapter of FIG. 6;

FIG. 10 is a perspective view of the first housing shown in FIG. 9 at another angle;

FIG. 11 is a cross-sectional perspective view of a first shell of the power adapter of FIG. 6;

FIG. 12 is a cross-sectional perspective view of the power adapter of FIG. 1;

FIG. 13 is a cross-sectional view of the power adapter of FIG. 1;

FIG. 14 is a cross-sectional perspective view of the power adapter of FIG. 4;

FIG. 15 is a cross-sectional view of the power adapter of FIG. 4;

FIG. 16 is a cross-sectional perspective view of the power adapter shown in FIG. 5;

fig. 17 is a cross-sectional view of the power adapter shown in fig. 5.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As shown in fig. 1 and 5, in one embodiment, a power adapter 10 is provided, including a protective cover 20, a housing 30, a hinge 40, and pins 60, the pins 60 being connected to the housing 30. It is to be understood that "connected" includes direct connection, in which the pin 60 is directly connected to the housing 30, and indirect connection, in which the pin 60 is connected to an element within the housing 30 so as to be fixed to the housing 30 or movable relative to the housing 30. The housing 30 has a first surface 33, and the protection cover 20 is connected to the first surface 33, and the pins 60 are illustrated as protruding from the first surface 33 in this application.

The hinge 40 is connected between the housing 30 and the protective cover 20 such that the protective cover 20 can rotate relative to the housing 30 to provide the power adapter 10 with the first state and the second state. As shown in fig. 1, in the first state, the protective cover 20 covers the housing 30, and at least a part of the pins 60 is accommodated in the protective cover 20 or the housing 30, so that the protective cover 20 or the housing 30 can protect the pins 60. As shown in fig. 5, the protection cover 20 has a second surface 140 connected to the housing 30, and in the second state, the second surface 140 of the protection cover 20 is flush with the first surface 33 of the housing 30 or has a height difference within a predetermined range, and forms a working engagement surface 90. When the power adapter 10 is electrically connected to an external power source, the working mating surface 90 is a surface of the power adapter 10 that is attached to or close to the external power source.

In one embodiment, the distance between the pins 60 and the edge of the working mating surface 90 is not less than a predetermined value, such as 5.1mm or 6.5mm or 7.9mm, so that the power adapter 10 can meet the safety requirements. It can be understood that the power adapter 10 has a length direction, a width direction and a thickness direction, and the distance from the pins 60 to the edge of the working mating face 90 in both the thickness direction and the width direction of the power adapter 10 is not less than a preset value.

In the power adapter 10 of the present application, the protective cover 20 can rotate relative to the housing 30 through the hinge 40 to be located in the first state and the second state. In the first state, the pins 60 are protected from exposure by the protective cover 20 or the housing 30 so as not to stab an object near the power adapter 10, and the pins 60 can be protected for portability. In the second state, the second surface 140 and the first surface 33 form the working mating surface 90 to meet the use requirement (e.g., the safety requirement) of the power adapter 10, so that the thickness of the housing 30 itself can be set to be smaller (e.g., much smaller than the preset value), and the overall volume of the power adapter 10 can be greatly reduced compared to the related art, such as the volume of the power adapter that is accommodated in the housing by folding the pins through rotation.

As shown in fig. 1, 4 and 5, in an embodiment, the protective cover 20 includes a first protective cover 100 and a second protective cover 200, which are fixed on two opposite sides of the edge of the first surface 33 of the housing 30 and located at the same end of the housing 30 as the pins 60. In the first state, the first protective cap 100 and the second protective cap 200 are attached to each other. In the second state, the first protective cap 100 and the second protective cap 200 are respectively attached to two opposite sides of the housing 30.

As shown in fig. 1 to 4, in one embodiment, the power adapter 10 has a length direction arranged along the Y direction, a width direction arranged along the X direction, and a thickness direction arranged along the Z direction. The pins 60 extend in the Y direction, which is the longitudinal direction of the power adapter 10, i.e., the longitudinal direction of the pins 60 is the Y direction. The shell 30 includes third and fourth oppositely disposed surfaces 31, 32, tenth and eleventh oppositely disposed surfaces 35, 36, and first and ninth oppositely disposed surfaces 33, 34. The third surface 31 and the fourth surface 32 define a thickness direction of the power adapter 10, i.e., a Z direction, the tenth surface 35 and the eleventh surface 36 define a width direction of the power adapter 10, i.e., an X direction, the first surface 33 and the ninth surface 34 define a length direction of the housing 30, and the length direction of the power adapter 10, i.e., the Y direction, is the same as the length direction of the housing 30. The pins 60 extend out of the housing 30 along the length of the power adapter 10. In another embodiment, the pins 60 may also extend along the width direction of the power adapter 10, and may be designed according to the actual requirement of the power adapter 10. The first protective cap 100 is attached to the intersection of the first surface 33 and the third surface 31, and the second protective cap 200 is attached to the intersection of the first surface 33 and the fourth surface 32.

As shown in fig. 5 and 6, in an embodiment, a receiving space is provided in the housing 30, and a circuit board (not shown) is provided in the receiving space, and the circuit board is electrically connected to the pins 60. In an embodiment, the housing 30 is a rectangular parallelepiped or square structure, and the edge of the housing 30 can be smoothly transited, so that the power adapter 10 has no rib and has a good hand feeling. In other embodiments, the body may also be a cylindrical structure or other structures, and is not limited herein. The shell 30 is provided with a charging interface 341, the charging interface 341 and the pin 60 are respectively located at two opposite ends of the shell 30, an external electronic component can penetrate through the charging interface 341 to be electrically connected with the circuit board, so that the external electronic component is electrically connected with the pin 60, and after the power adapter 10 is electrically connected with a power supply, the power supply can supply power to the electronic component. It should be understood that the electronic component may be an intermediate connection line such as a data line, an electronic device such as a mobile phone, a watch, a tablet, or a computer, or a combination of an electronic device and a corresponding data line, which is not limited herein.

As shown in fig. 5 and 6, in one embodiment, the housing 30 is made of plastic. The housing 30 includes a first case 301 and a second case 302, and the pins 60 are fixed to the first case 301. The first and second shells 301 and 302 are fixed by ultrasonic heat fusion or other processes, and the second shell 302 wraps around the first shell 301 with the first surface 33 exposed. The plug 60 and the first shell 301 are molded integrally by an injection molding, and the first shell 301 has a second receiving groove 331, and the protective cover 20 has a first receiving groove 141 at a position corresponding to the second receiving groove 331 for facilitating the subsequent installation of the hinge 40. It is understood that the third surface 31, the fourth surface 32, the ninth surface 34, the tenth surface 35, and the eleventh surface 36 are located at the second case 302.

As shown in fig. 5 to 7, in an embodiment, the first protective cover 100 is assembled by the first outer shell 101 and the first inner shell 102, and includes a fifth surface 110 and a sixth surface 120 that are opposite to each other, a twelfth surface 130 and a second surface 140 that are opposite to each other, and a thirteenth surface 150 and a fourteenth surface 160 that are opposite to each other. The fifth surface 110 is located on the first outer shell 101 and the sixth surface 120 is located on the first inner shell 102. The adjacent surfaces of first protective cap 100 may have a smooth transition therebetween, such that first protective cap 100 has a smooth feel. The second protective cover 200 is assembled from the second outer shell 201 and the second inner shell 202, and includes a seventh surface 210 and an eighth surface 220 that are opposite to each other, a fifteenth surface 230 and a sixteenth surface 240 that are opposite to each other, and a seventeenth surface 250 and an eighteenth surface 260 that are opposite to each other. The seventh surface 210 is located on the second outer case 201, and the eighth surface 220 is located on the second inner case 202. The adjacent surfaces of the second protective cover 200 can be smoothly transited, so that the second protective cover 200 has a smooth feel.

As shown in fig. 2, 7 and 8, in an embodiment, the first protective cover 100 and the second protective cover 200 can rotate relative to the housing 30 about the width direction of the power adapter 10, such that the first protective cover 100 and the second protective cover 200 have a first state and a second state. As shown in fig. 8, in the second state, the first protective cover 100 and the second protective cover 200 are away from each other, the first protective cover 100 is attached to one side of the casing 30, the second protective cover 200 is attached to the other side of the casing 30, the second surface 140 and the sixteenth surface 240 are both flush with the first surface 33, the second surface 140, the sixteenth surface 240 and the first surface 33 together form the working mating surface 90, and the pin 60 is exposed. The user may insert the prongs 60 into the power source and the working mating surface 90 is attached to the power source.

As shown in fig. 1 and 2, in the first state, the entire structure of the pin 60 is covered by the first protective cover 100 and the second protective cover 200, the sixth surface 120 and the eighth surface 220 are attached to and contact with each other, the fifth surface 110 is flush with the third surface 31, the seventh surface 210 is flush with the fourth surface 32, the thirteenth surface 150 is flush with the tenth surface 35, and the fourteenth surface 160 is flush with the eleventh surface 36. The surfaces may be flush with each other, coplanar, or have some height difference, and are within the scope of the present application. In the first state, the pins 60 are hidden by the cover, and when the user puts the power adapter 10 into a pocket or a trunk, the power adapter 10 does not damage the surrounding objects. In another embodiment, in the first state, a part of the structure of the pin 60 is covered by the first protective cover 100 and the second protective cover 200, and a part of the structure is exposed from or protrudes from the first protective cover 100 and the second protective cover 200.

As shown in fig. 5, in an embodiment, the first protecting cover 100 is formed with a first engaging groove 121, the first engaging groove 121 extends to the sixth surface 120, and the shape of the first engaging groove 121 is similar to the shape of the plug 60; the second protective cover 200 is provided with a second slot 221, the second slot 221 extends to the eighth surface 220, and the shape of the second slot 221 is similar to the shape of the pin 60. In the first state, the first card slot 121 and the second card slot 221 are in communication, and the pins 60 can be received in the first card slot 121 and the second card slot 221. In the first state of the power adapter 10, the pins 60 are hidden, and the appearance of the power adapter 10 is in a cuboid or cube structure, so that the appearance integrity of the power adapter 10 is ensured.

It will be appreciated that the first card slot 121 extends to the second surface 140 and the second card slot 221 extends to the sixteenth surface 240, but the operative mating surface 90 is defined as the surface formed by the second surface 140, the first surface 33 and the sixteenth surface 240 in the second state when the first card slot 121 and the second card slot 221 are omitted.

As shown in fig. 2 and fig. 8, in an embodiment, when the first state of the power adapter 10 is compared with the second state, the first protective cover 100 and the second protective cover 200 respectively rotate by about 180 ° around the X direction of the power adapter 10, that is, when the power adapter 10 is in the first state, the first protective cover 100 and the second protective cover 200 are rotated by 180 ° relative to the housing 30, so that the fifth surface 110 is attached to the third surface 31, the seventh surface 210 is attached to the fourth surface 32, and the power adapter 10 is in the second state.

As shown in fig. 5 and 8, in an embodiment, the number of the pins 60 is 2, 2 pins 60 are arranged in the width direction of the power adapter 10, i.e., the X direction, the distance between each of the 2 pins 60 and the third surface 31 is L1, and the distance between each of the 2 pins 60 and the fourth surface 32 is L2. In the second state of the power adapter 10, the distance between each of the 2 pins 60 and the sixth surface 120 is L3, and L3 is equal to the sum of the thickness of the first protective cover 100 and L1; the distance between the 2 pins 60 and the eighth surface 220 is L4, and L4 is equal to the sum of the thickness of the second protective cover 200 and L2. In the second state, the distance of the pin 60 from the edge of the working mating face 90 is the minimum of L3, L4.

The safety specification, i.e., the safety specification, specifies that the distance from the pins 60 to the edge of the working mating surface 90 in the second state of the power adapter 10 is not less than a preset value. In some embodiments, the preset value may be 6.5mm, or may be other data, such as 5.1mm or 7.9mm, and is determined according to the usage of the power adapter 10. It is understood that, in the second state, in the thickness direction of the power adapter 10, i.e., the Z direction, the distance from the pins 60 to the edge of the working mating face 90 is not less than the preset value; and the distance from the pins 60 to the edge of the working mating face 90 in the width direction of the power adapter 10, i.e., the X direction, is not less than a preset value. In one embodiment, L1 is equal to L2, i.e., 2 pins 60 are symmetrically disposed on the first surface 33, and L3 is equal to L4, the minimum value of the edge of the pin 60 from the working mating surface 90 is L3 or L4, and L3 or L4 is not less than a predetermined value. L1 is smaller than a preset value, such as 2.65mm, and L3 is not smaller than a preset value, such as 8.4 mm.

In the first state of the power adapter 10, the thickness of the power adapter 10 is the sum of the dimensions of the pins 60 in the Z direction and the L1 and L2. Both L1 and L2 are smaller than the preset values, and when L1 and L2 are smaller, the thickness of the power adapter 10 is smaller.

As shown in FIGS. 12 and 13, in one embodiment, the first cap 100 is pivotally connected to the housing 30 by a pivot hinge 40, and the second cap 200 is pivotally connected to the housing 30 by the pivot hinge 40. The present application will be described in detail with reference to the hinge 40 connecting between the first protective cap 40 and the housing 30. One of the hinge 40 and the first protective cover 100 is provided with a first protrusion 431, and the other is provided with a first guide slot 411. One of the hinge 40 and the first protective cover 100 is provided with a first positioning block 433, and the other is provided with a first positioning groove 412. The first protrusion 431 can slide along the first guide slot 411, and the first positioning block 433 rotates in the first positioning slot 412, so that the first protection cover 100 rotates relative to the hinge 40. One of the hinge 40 and the housing 30 is provided with a second protrusion 432, and the other is provided with a second guide groove 421. One of the hinge 40 and the housing 30 is provided with a second positioning block 434, and the other is provided with a second positioning slot 422. The second protruding column 432 can slide along the second guiding groove 421, and the second positioning block 434 rotates in the second positioning groove 422, so that the housing 30 rotates relative to the hinge 40. Wherein the first protective cover 100 can rotate toward or away from the housing 30. In the first state, the first protective cap 100 can be switched to the second state after being rotated relative to the housing 30. In the second state, the first protective cover 100 can be switched to the first state after rotating opposite to the housing 30.

As shown in fig. 9 to 11, in an embodiment, the first receiving groove 141 is opened in the first outer shell 101, and the second receiving groove 331 is opened in the first shell 301. As shown in fig. 12, a part of the structure of the hinge 40 is received in the first receiving groove 141, and the rest of the structure is received in the second receiving groove 331, so that the first protective cover 100 is rotatably connected to the housing 30. Similarly, the second casing 201 of the second protective cover 200 is also formed with a first receiving groove 141, and the first casing 301 is also formed with a second receiving groove 331 at a position corresponding to the second casing 201, so that the second protective cover 200 can be rotatably connected to the housing 30 through the hinge 40. The present application will be described in detail with reference to the first receiving groove 141 formed in the first housing 101 and the second receiving groove 331 formed in the first housing 301 at a position connected to the first protective cover 100.

As shown in fig. 6, in an embodiment, the hinge 40 includes a base 43, a first protrusion 431, a second protrusion 432, a first positioning block 433, and a second positioning block 434. The base 43 has a length direction, a width direction and a thickness direction perpendicular to each other. In the first state, the longitudinal direction of the base 43 is set in the Y direction, the width direction of the base 43 is set in the X direction, and the thickness direction of the base 43 is set in the Z direction. A first convex column 431, a second convex column 432, a first positioning block 433 and a second positioning block 434 are symmetrically arranged on both sides of the base 43 in the width direction. The present application takes the first convex column 431, the second convex column 432, the first positioning block 433, and the second positioning block 434 on one side of the base 43 in the width direction as an example for detailed description. In the length direction of the base 43, the first boss 431 and the second boss 432 are respectively located at positions of the base 43 near both ends, and the first positioning block 433 and the second positioning block 434 are located between the first boss 431 and the second boss 432.

As shown in fig. 9 to 11, the groove wall of the first accommodating groove 141 is opened with a first guide groove 411 and a first positioning groove 412. First projection 431 can slide along first guide way 411, and first locating piece 433 rotates in first locating slot 412 for first protective cover 100 rotates for base 43, thereby makes first protective cover 100 switch between first state and second state. The walls of the second receiving groove 331 are formed with a second guiding groove 421 and a second positioning groove 422. The second protruding column 432 can slide along the second guiding groove 421, and the second positioning block 434 rotates in the second positioning groove 422, so that the housing 30 rotates relative to the base 43, and the housing 30 is switched between the first state and the second state.

It will be appreciated that, when the base 43 is set to be fixed, the first cover 100 is rotated 90 ° relative to the base 43, and the housing 30 is rotated 90 ° relative to the base 43, then the first cover 100 is rotated 180 ° relative to the housing 30, so that the power adapter 10 is switched between the first state and the second state. However, according to the usage habit, the housing 30 is generally in a fixed state, and the power adapter 10 is switched between the first state and the second state by rotating the first protective cover 100 and the base 43 by 180 ° and 90 ° relative to the housing 30, respectively. Both modes of introduction are substantially the same.

As shown in fig. 12 and 13, in the first state, the first protrusion 431 is located at an end of the first guide slot 411 far from the housing 30, and the second protrusion 432 is located at an end of the second guide slot 421 far from the first protection cover 100. The first protection cover 100 and the housing 30 are switched from the first state to the second state by rotating the set angles, which are 90 °, with respect to the base 43. As shown in fig. 16 and 17, in the second state, the first boss 431 slides to the other end of the first guide groove 411, and the second boss 432 slides to the other end of the second guide groove 421.

As shown in fig. 14 and 15, in an embodiment, between the first state and the second state, the first protrusion 431 is located between two ends of the first guide slot 411, and the second protrusion 432 is located between two ends of the second guide slot 421.

As shown in fig. 13, in an embodiment, the cross sections of the first positioning block 433 and the second positioning block 434 are both elliptical, and the cross sections of the first protruding pillar 431 and the second protruding pillar 432 are both circular. An included angle between a central point of the first positioning block 433 and a connecting line between central points of the first protruding pillar 431 at two ends of the first guiding groove 411 is equal to 90 °, which can satisfy that the first protection cover 100 rotates 90 ° relative to the base 43 under the first state and then switches to the second state. An included angle between a connecting line between a central point of the second positioning block 434 and a central point of the second protruding pillar 432 at two ends of the second guiding groove 421 is equal to 90 °, which can satisfy that the housing 30 is switched to the second state after rotating 90 ° relative to the base 43 in the first state.

As shown in fig. 12 and 13, the first guide slot 411 and the second guide slot 421 are both arc-shaped slots, the first positioning slot 412 and the second positioning slot 422 are straight slots, and the first positioning slot 412 and the second positioning slot 422 are respectively communicated with the first guide slot 411 and the second guide slot 421. The radian of the first guide slot 411 protrudes toward the first positioning block 433, and the radian of the second guide slot 421 protrudes toward the second positioning block 434. In another embodiment, the first guide slot 411 and the second guide slot 421 can also be straight slots, and it is also possible to rotate the first protection cover 100 by 90 ° with respect to the base 43 to switch between the first state and the second state, and to rotate the housing 30 by 90 ° with respect to the base 43 to switch between the first state and the second state.

As shown in fig. 12 and 13, in an embodiment, the first guide slot 411 and the second guide slot 421 are circular arc slots, and the central angle subtended by the first guide slot 411 and the second guide slot 421 is smaller than 90 °, so that the first protection cover 100 and the housing 30 can rotate 90 ° relative to the base 43, and can be switched between the first state and the second state. It can be understood that when the first protection cover 100 rotates relative to the base 43, the first positioning block 433 rotates relative to the first positioning slot 412, and there are both rotating and sliding motions, and the sliding motion of the first positioning block 433 relative to the first positioning slot 412 enables the first protection cover 100 to rotate 90 ° relative to the base 43 when the central angle subtended by the first guiding slot 411 is smaller than 90 °. Similarly, the central angle subtended by the second guide slot 421 is less than 90 °, the sliding of the second stud 432 along the second guide slot 421, and the rotation and sliding of the second positioning block 434 relative to the second positioning slot 422 enable the housing 30 to rotate 90 ° relative to the base 43 to switch between the first state and the second state.

It can be understood that the arcs of the first guide groove 411 and the second guide groove 421 are protruded to face each other, resulting in the structure shown in fig. 13. This setting and "first locating piece 433, second locating piece 434 can be respectively in first constant head tank 412, slide" the combination is in the same place in second constant head tank 422, when switching to the second state by the first state, first protection cover 100 at first has a action of keeping away from casing 30, make the interval between first protection cover 100 and the casing 30 increase, produce when avoiding rotating between the two and interfere, thereby can avoid setting up the chamfer at the one end of first protection cover 100 and casing 30 that is close to each other, the junction of fifth surface 110 and second surface 140 is the right angle promptly, the junction of third surface 31 and first surface 33 is the right angle. Therefore, when the power adapter 10 is in the first state, as shown in fig. 1, the distance between the first protection cover 100 and the housing 30 is small, so that the power adapter 10 has a complete appearance structure and good appearance integrity.

In one embodiment, the cross-sections of the first positioning block 433 and the second positioning block 434 are both elliptical structures. As shown in fig. 12 and 13, in the first state, the long axis of the cross section of the first positioning block 433 is perpendicular to the groove wall of the first positioning groove 412, and the minimum distance between the first positioning block 433 and the groove wall of the first positioning groove 412 is small; the long axis of the cross section of the second positioning block 434 is perpendicular to the groove wall of the second positioning groove 422, and the minimum distance between the second positioning block 434 and the groove wall of the second positioning groove 422 is small. As shown in fig. 16 and 17, in the second state, the minor axis of the cross section of the first positioning block 433 is perpendicular to the groove wall of the first positioning groove 412, and the minimum distance between the first positioning block 433 and the groove wall of the first positioning groove 412 is large; the minor axis of the cross section of the second positioning block 434 is perpendicular to the groove wall of the second positioning groove 422, and the minimum distance between the second positioning block 434 and the groove wall of the second positioning groove 422 is larger. In the process of switching the power adapter 10 from the first state to the second state, the minimum distance between the first positioning block 433 and the groove wall of the first positioning groove 412 gradually increases, and the minimum distance between the second positioning block 434 and the groove wall of the second positioning groove 422 gradually increases synchronously.

In the first state, the minimum distance between the first positioning block 433 and the wall of the first positioning groove 412 is smaller and even approaches 0, so that the assembly between the two is more compact, and the stability of the power adapter 10 in the first state is increased. In the second state, the minimum distance between the first positioning block 433 and the wall of the first positioning groove 412 is relatively large, so that a movable gap is formed between the first positioning block 433 and the wall of the first positioning groove 412, which is convenient for a user to close the power adapter 10, and is convenient for the first positioning block 433 to slide in the first positioning groove 412.

In another embodiment, the cross-section of the first positioning block 433 and the second positioning block 434 may be non-elliptical, but the major axis and the minor axis need to be present. The cross-section of the first positioning block 433 and the second positioning block 434 may be a runway-type structure, an irregular circular structure or other structures, which are not limited herein.

In an embodiment, a method of mounting the base 43 to the first housing 101 and the first shell 301 is provided. For convenience of installation, the first convex column 431, the second convex column 432, the first positioning block 433 and the second positioning block 434 can be detached from the base 43; the first receiving groove 141 and the second receiving groove 331 are detachable from at least one side of the receiving groove. First, the first convex column 431, the second convex column 432, the first positioning block 433 and the second positioning block 434 on one side of the base 43 are installed on the base 43, the base 43 is obliquely placed in the first accommodating groove 141 and the second accommodating groove 331, the first convex column 431 and the first positioning block 433 respectively extend into the first accommodating groove 141 from one side of the first housing 101 away from the fifth surface 110 and are installed on the base 43, the groove wall of the first accommodating groove 141 is fixed to the first housing 101, and the first guide groove 411 and the first positioning groove 412 formed on the groove wall of the first accommodating groove 141 are respectively matched with the first convex column 431 and the first positioning block 433. The second protruding pillar 432 and the second positioning block 434 extend into the second receiving groove 331 from the inner space of the first housing 301 and are mounted on the base 43, and the groove wall of the second receiving groove 331 is fixed to the first housing 301, so that the second guiding groove 421 and the second positioning groove 422 formed on the groove wall of the second receiving groove 331 are respectively matched with the second protruding pillar 432 and the second positioning block 434. The first outer case 101 and the first inner case 102 are then fixed together to form the first protective cover 100, and the first case 301 and the second case 302 are fixed together to form the housing 30.

As shown in fig. 6 to 8, in an embodiment, a first magnetic body 125 is disposed in the first protective cover 100, and a second magnetic body 225 is disposed in the second protective cover 200. In the first state, the polarities of the two poles close to the first magnetic body 125 and the second magnetic body 225 are opposite, and the first protective cover 100 and the second protective cover 200 are magnetically attracted and attached to each other through the first magnetic body 125 and the second magnetic body 225. In the second state, the polarities of the two poles close to the first magnetic body 125 and the second magnetic body 225 are opposite, and the first protective cover 100 and the second protective cover 200 are magnetically attracted and respectively attached to the two opposite sides of the housing 30 through the first magnetic body 125 and the second magnetic body 225.

Between the first magnetic body 125 and the second magnetic body 225, there are a first magnetic force F1 for the first protective cover 100 and the second protective cover 200 to return to the first state, and a magnetic force F2 for the second state. There exists a critical angle α, which is the angle between the first protective cover 100 or the second protective cover 200 and the housing 30, i.e. the angle between the fifth surface 110 and the plane of the third surface 31, or the angle between the seventh surface 210 and the plane of the fourth surface 32. When one of the first protective cover 100 and the second protective cover 200 is in the first state or the second state, and an angle between the other of the first protective cover 100 and the second protective cover 200 and the housing 30 is the critical angle α, the first magnetic force F1 and the second magnetic force F2 are in a balanced state, that is, the first magnetic force F1 and the second magnetic force F2 interact with each other to make the first protective cover 100 and the second protective cover 200 in the balanced state. When one of the first protective cover 100 and the second protective cover 200 is in the second state and the angle between the other of the first protective cover 100 and the second protective cover 200 and the housing 30 is greater than the critical angle α, the first magnetic force F1 is greater than the second magnetic force F2, and the first protective cover 100 and the second protective cover 200 can automatically return to the first state. When one of the first protective cap 100 and the second protective cap 200 is in the first state and the angle between the other of the first protective cap 100 and the second protective cap 200 and the housing 30 is smaller than the critical angle α, the first magnetic force F1 is smaller than the second magnetic force F2, and the first protective cap 100 and the second protective cap 200 can automatically return to the second state.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims (16)

1. A power adapter, comprising:

a housing;

a protective cover; and

a hinge directly connecting the housing and the protective cover; one of the hinge and the protective cover is provided with a first convex column, and the other one of the hinge and the protective cover is provided with a first guide groove; one of the hinge and the protective cover is provided with a first positioning block, and the other one of the hinge and the protective cover is provided with a first positioning groove; the first convex column can slide along the first guide groove, and the first positioning block rotates in the first positioning groove, so that the protective cover rotates relative to the hinge; one of the hinge and the shell is provided with a second convex column, and the other one of the hinge and the shell is provided with a second guide groove; one of the hinge and the shell is provided with a second positioning block, and the other one of the hinge and the shell is provided with a second positioning groove; the second convex column can slide along the second guide groove, and the second positioning block rotates in the second positioning groove, so that the shell rotates relative to the hinge;

wherein the protective cover can rotate towards or away from the shell,

the power adapter comprises pins arranged on the shell; the protective cover can rotate relative to the shell to have a first state and a second state; in the first state, at least part of the pin is accommodated in the protective cover; in the second state, the pins are exposed; the shell is provided with a first surface, and the pins protrude out of the first surface; the protective cover comprises a second surface; in the second state, the first surface and the second surface form a working matching surface, and the distance between the pin and the edge of the working matching surface is not less than a preset value.

2. The power adapter as claimed in claim 1, wherein the preset value is 5.1mm or 6.5mm or 7.9 mm.

3. The power adapter as claimed in claim 1, wherein the first positioning block has a major axis and a minor axis and the second positioning block has a major axis and a minor axis;

in the process that the power adapter is switched from the first state to the second state, the minimum distance between the first positioning block and the groove wall of the first positioning groove is gradually increased, and the minimum distance between the second positioning block and the groove wall of the second positioning groove is gradually increased.

4. The power adapter as claimed in claim 1, wherein the cross sections of the first positioning block and the second positioning block are both oval;

in the first state, the long axis of the cross section of the first positioning block is perpendicular to the groove wall of the first positioning groove, and the long axis of the cross section of the second positioning block is perpendicular to the groove wall of the second positioning groove;

in the second state, the short axis of the cross section of the first positioning block is perpendicular to the groove wall of the first positioning groove, and the short axis of the cross section of the second positioning block is perpendicular to the groove wall of the second positioning groove.

5. The power adapter as claimed in claim 1, wherein in the first state, the first protrusion is located at an end of the first guide slot away from the housing, and the second protrusion is located at an end of the second guide slot away from the protective cover;

when the first guide groove is in the first state, the first convex column is positioned at one end of the first guide groove, and the second convex column is positioned at the other end of the second guide groove;

the protective cover and the shell can be oppositely rotated by a set angle from the first state to be switched to the second state.

6. The power adapter as claimed in claim 5, wherein the set angle is 90 °.

7. The power adapter as described in claim 5, wherein said hinge comprises a base, said first and second posts are disposed on said base; the first guide groove and the second guide groove are arc-shaped grooves and are respectively arranged on the protective cover and the shell.

8. The power adapter as claimed in claim 7, wherein the first guide groove and the second guide groove are both circular arc grooves, and the central angle subtended by the first guide groove and the second guide groove is less than 90 °.

9. The power adapter as claimed in claim 8, wherein between the first state and the second state, the centers of the circles of the first guide groove and the second guide groove are respectively located at the sides of the first guide groove and the second guide groove which face away from each other.

10. The power adapter as claimed in claim 7, wherein the first positioning block and the second positioning block are fixed to the base, and the first positioning slot and the second positioning slot are respectively disposed on the protection cover and the housing.

11. The power adapter as claimed in claim 10, wherein the first positioning groove is a straight groove and communicates with the first guide groove; the second positioning groove is a straight groove and is communicated with the second guide groove.

12. The power adapter as claimed in any one of claims 1 to 11, wherein the protective cover comprises a first protective cover and a second protective cover;

in the first state, the first protective cover and the second protective cover are attached and fixed;

under the second state, first visor with the second visor laminates respectively and is fixed in the both sides that carry on the back of the body mutually.

13. The power adapter as claimed in claim 12, wherein the housing comprises third and fourth oppositely disposed surfaces, the first surface being connected between the third and fourth surfaces; the first protective cover comprises a fifth surface and a sixth surface which are arranged oppositely, and the second surface is connected between the fifth surface and the sixth surface; the second protective cover comprises a seventh surface, an eighth surface and a sixteenth surface, wherein the seventh surface and the eighth surface are arranged oppositely, and the sixteenth surface is connected between the seventh surface and the eighth surface;

in the first state, the sixth surface and the eighth surface are attached, the fifth surface and the third surface are flush, and the seventh surface and the fourth surface are flush;

in the second state, the fifth surface is attached to the third surface, the seventh surface is attached to the fourth surface, and the second surface, the first surface, and the sixteenth surface together form the working mating surface.

14. The power adapter as claimed in claim 12, wherein a first magnetic body is provided in the first protective cover, and a second magnetic body is provided in the second protective cover;

in the first state, the polarities of the two adjacent poles of the first magnetic body and the second magnetic body are opposite, and the first protective cover and the second protective cover are magnetically attracted, attached and fixed through the first magnetic body and the second magnetic body;

under the second state, the polarity of the two poles that first magnetic substance and second magnetic substance are close to is opposite, first visor with the second visor passes through first magnetic substance with second magnetic substance magnetism is inhaled and is laminated respectively and be fixed in the both sides that carry on the back mutually of casing.

15. The power adapter as claimed in claim 12, wherein a first magnetic body is provided in the first protective cover, and a second magnetic body is provided in the second protective cover;

when the second protective cover is in the second state and the angle between the first protective cover and the shell is larger than the critical angle, the first magnetic body and the second magnetic body can attract each other so that the first protective cover and the second protective cover rotate to the first state;

the second visor is located the first state, first protective cover with when the angle between the casing is less than critical angle, first magnetic substance with the second magnetic substance can the actuation mutually so that first protective cover with the second visor rotates to the second state.

16. The power adapter as claimed in claim 12, wherein the first protective cap defines a first slot, and the second protective cap defines a second slot;

in the first state, the first slot is communicated with the second slot, and at least part of the pin is accommodated in the first slot and the second slot.

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