CN215119397U - Power adapter and electronic equipment assembly - Google Patents

Abstract

The application provides a power adapter and an electronic equipment assembly. The power adapter comprises a shell assembly and a pin assembly, the shell assembly comprises a first shell and a second shell, the first shell and the second shell are connected and jointly form an accommodating space, the accommodating space is used for accommodating the pin assembly, the first shell is provided with a through hole communicated with the accommodating space, the pin assembly comprises a bearing seat and a pin supported on the bearing seat, and the pin is arranged corresponding to the through hole; the power adapter is provided with a containing state that the first shell extends along a preset direction and the plug pins are contained in the shell assembly, and an extending state that the first shell contracts along the preset direction and the plug pins penetrate through the through holes and are exposed outside the shell assembly. The power adapter provided by the application has the advantages that the pins are not easy to damage.

Description

Power adapter and electronic equipment assembly

Technical Field

The application relates to the technical field of electronics, in particular to a power adapter and an electronic equipment assembly.

Background

With the progress of technology, electronic devices such as mobile phones and the like become necessities of life of people. Power adapters are commonly used to charge electronic devices such as cell phones. However, the pins of the adapter in the related art are entirely exposed, so that the pins are liable to be damaged.

SUMMERY OF THE UTILITY MODEL

The application provides a power adapter and electronic equipment subassembly, power adapter's base pin is not fragile.

In a first aspect, the present application provides a power adapter, where the power adapter includes a housing assembly and a pin assembly, the housing assembly includes a first housing and a second housing, the first housing and the second housing are connected to form an accommodating space, the accommodating space is used to accommodate the pin assembly, the first housing has a through hole communicated with the accommodating space, the pin assembly includes a bearing seat and a pin supported on the bearing seat, and the pin is disposed corresponding to the through hole;

the power adapter is provided with a containing state that the first shell extends along a preset direction and the plug pins are contained in the shell assembly, and an extending state that the first shell contracts along the preset direction and the plug pins penetrate through the through holes and are exposed outside the shell assembly.

In a second aspect, the present application further provides an electronic device assembly, which includes an electronic device and the power adapter of the first aspect, where the power adapter is used to provide power for the electronic device.

Compared with the related art, the first shell of the power adapter can be extended and retracted, when the power adapter is needed to supply power to the electronic equipment, the first shell can be retracted, so that the pins are exposed out of the shell assembly from the through holes, and the power adapter is plugged in the socket through the exposed pins. When the power adapter is not needed, the first shell can be extended to accommodate the pins in the shell assembly, so that the pins are prevented from being damaged, for example, impact deformation and risks of functional failure caused by bending are avoided, and the service life of the power adapter can be prolonged. In addition, because the pins are accommodated in the shell assembly, the pins can be prevented from damaging other articles, and the user can be prevented from carrying time stamps.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic application environment diagram of a power adapter according to an embodiment of the present application.

Fig. 2 is an exploded view of a power adapter provided in an embodiment of the present application.

Fig. 3 is a schematic view of a power adapter provided in an embodiment of the present application in a housed state.

Fig. 4 is a schematic diagram of a power adapter provided in an embodiment of the present application in an extended state.

Fig. 5 is a cross-sectional view of the power adapter shown in fig. 3 taken along line a-a.

FIG. 6 is a cross-sectional view of the power adapter shown in FIG. 4 taken along line B-B.

Fig. 7 is a schematic diagram of a power adapter provided in another embodiment of the present application in an extended state.

Fig. 8 is a partial schematic view of the power adapter shown in fig. 5.

Fig. 9 is a schematic view of a pin assembly provided in accordance with an embodiment of the present application.

FIG. 10 is a cross-sectional view of the power adapter shown in FIG. 3 taken along line C-C.

Fig. 11 is a schematic view illustrating the fixing member of the present embodiment in a hook structure.

Fig. 12 is a schematic diagram of an electronic device assembly provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, the present application provides a power adapter 10. The power adapter 10 is a conversion device that supplies power to the electronic device 20. Generally, the power adapter 10 may convert an alternating voltage to a direct voltage. For example, the power adapter 10 is plugged into the socket 30, receives the ac voltage output by the socket 30, and converts the received ac voltage into a dc voltage, which is used to charge the electronic device 20 using electricity, such as a mobile phone and a computer. It is to be appreciated that in other embodiments, the power adapter 10 converts the received ac voltage to a dc voltage that is directly available to the electronic components in the electronic device 20. It is to be understood that the schematic diagram of the application environment of the power adapter 10 is only helpful for understanding the application of the power adapter 10, and should not be construed as limiting the power adapter 10 provided in the present application.

Referring to fig. 2 to 3, the power adapter 10 includes a housing assembly 100 and a pin assembly 200. The housing assembly 100 includes a first housing 110 and a second housing 120. The first casing 110 and the second casing 120 are connected to form an accommodating space Z1. The accommodating space Z1 is used for accommodating the pin assembly 200. The first housing 110 has a through hole Z2 communicating with the accommodating space Z1. The pin assembly 200 includes a carrier 210 and pins 220 carried on the carrier 210. The pins 220 are arranged corresponding to the through holes Z2. The pins 220 are at least partially located within the first housing 110.

The housing assembly 100 may be, but is not limited to, cylindrical, elliptical cylindrical, rectangular cylindrical, etc. Accordingly, the first housing 110 and the second housing 120 may have, but are not limited to, a cylindrical shape, an elliptic cylindrical shape, a rectangular cylindrical shape, and the like. It should be noted that the shapes of the first casing 110 and the second casing 120 may be the same or different. In the present application, the outer shape of the housing assembly 100 is exemplified as a cylindrical shape.

The first housing 110 may also be referred to as an upper housing or an upper cover, and the material of the first housing 110 is an insulating material, such as plastic, rubber, ceramic, glass, and the like. The number of the through holes Z2 on the first housing 110 may be, but not limited to, two, and in other embodiments, the number of the through holes Z2 may also be another number, such as three. The second housing 120 may also be referred to as a lower housing or a lower cover, and the material of the second housing 120 is an insulating material, such as plastic, rubber, ceramic, glass, and the like. The materials of the first housing 110 and the second housing 120 may be the same or different.

The bearing seat 210 and the pins 220 can be fixed together by, but not limited to, integral injection molding. The material of the carrying base 210 is an insulating material, such as plastic, rubber, plastic, ceramic, etc. The plug pins 220 are made of metal, such as copper alloy, aluminum alloy, etc. The plug 220 is adapted to be plugged into the socket 30 to receive the ac voltage provided by the socket 30. The pins 220 may be, but are not limited to, elongated shapes. The end of the pin 220 remote from the second housing 120 is curved to facilitate insertion of the pin 220 into the socket 30. The number of the pins 220 may be, but is not limited to, two, three, etc., and the present application only exemplifies two pins 220 oppositely disposed.

Further, referring to fig. 3 to 6, the first housing 110 of the power adapter 10 can be extended (extended) and retracted (compressed) along a predetermined direction, so that the pins 220 can be received in the housing assembly 100 or exposed outside the housing assembly 100, wherein the predetermined direction is parallel to the pointed direction of the pins 220 (i.e. the length extension direction of the pins 220). Specifically, referring to fig. 3 and fig. 5, the power adapter 10 has a state that the first housing 110 extends along a predetermined direction and the pins 220 are accommodated in the housing assembly 100, that is, the first housing 110 can extend along the predetermined direction to a first length, so that the pins 220 are accommodated in the housing assembly 100. Referring to fig. 4 and 6, the power adapter 10 further has an extended state in which the first casing 110 is retracted along a predetermined direction and the pins 220 pass through the through holes Z2 and are exposed outside the casing assembly 100, that is, the first casing 110 can be shortened to a second length along the predetermined direction, so that the pins 220 are exposed outside the casing assembly 100. Wherein the first length is greater than the second length.

The first housing 110 may have elasticity. The first housing 110 is made of an insulating material, and may be made of, but not limited to, an elastic material such as rubber (e.g., fluororubber). Specifically, after the first housing 110 is compressed along the predetermined direction, the first housing 110 has elastic potential energy, and if the first housing 110 is not acted by an external force in the predetermined direction, the first housing 110 can extend to recover the length before being uncompressed by virtue of the elastic potential energy of the first housing 110.

It should be noted that the mutual switching between the accommodated state and the extended state of the power adapter 10 can be achieved manually, that is, a user directly applies force to the first housing 110 to expand or contract the first housing 110. In other embodiments, the switch between the accommodated state and the extended state may be automatically performed by the power adapter 10.

Compared with the related art, the first casing 110 of the power adapter 10 provided by the present application can be extended and retracted, and when power needs to be supplied to the electronic device 20 by using the power adapter 10, the first casing 110 can be retracted, so that the pins 220 are exposed from the through holes Z2 outside the casing assembly 100, and the power adapter 10 is plugged into the socket 30 through the exposed pins 220. When the power adapter 10 is not needed, the first housing 110 may be extended to accommodate the pins 220 in the housing assembly 100, so as to avoid the pins 220 from being damaged, for example, from being deformed by impact, and from being bent to cause functional failure, and thus, the service life of the power adapter 10 may be prolonged. In addition, since the pins 220 are accommodated in the housing assembly 100, damage to other articles by the pins 220 can be avoided, and users can be prevented from being painful when carrying time stamps.

Referring to fig. 6, the power adapter 10 further includes a circuit board 400 and an output port 500 electrically connected to each other. The circuit board 400 and the output port 500 are at least partially accommodated in the accommodating space Z1. The circuit board 400 is electrically connected to the pins 220, and is configured to convert an ac voltage received by the pins 220 into a dc voltage. The output port 500 is used for electrically connecting the electronic device 20 to output the dc voltage to the electronic device 20. The output port 500 is a Universal Serial Bus (USB) interface, and the USB interface may be, but is not limited to, a USB2.0 interface, a USB3.0 interface, or a Type-C interface.

Referring to fig. 5 and 6, the first housing 110 includes an end cap 111 and a circumferential wall 112. Wherein the end cap 111 has the through hole Z2. The surrounding wall 112 is connected to the periphery of the end cap 111 in a bending manner. The end of the circumferential wall 112 remote from the end cap 111 is connected to the second housing 120. The circumferential wall 112 can be expanded and contracted, and the end cover 111 can slide along the pins 220 with the pins 220 as a guide rail, thereby realizing the state switching of the power adapter 10. When the power adapter 10 is in the housed state, the radial dimension of the annular peripheral wall 112 is a first dimension. The radial dimension of the annular peripheral wall 112 is a second dimension when the power adapter 10 is in the extended state. The second size is larger than the first size.

Specifically, in the process of converting the power adapter 10 from the receiving state to the extending state, the two opposite ends of the annular wall 112 in the predetermined direction are pressed toward the middle portion of the annular wall 112, so that the middle portion moves away from the pins 220 to form the convex structure. When the power adapter 10 is converted from the extended state to the accommodated state, the first housing 110 is restored to its original state, and the convex structure disappears or weakens.

It can be understood that after the convex structure is formed, the user's fingers can hold the second housing 120 and abut on the side of the convex structure away from the end cap 111, so as to plug the power adapter 10 into the socket 30. In the process of plugging, the convex structure can block the fingers of the user, so that the problem that the fingers of the user slide on the surface of the shell assembly 100 along the preset direction to cause plugging failure can be avoided, and the method is particularly suitable for the situation that the fingers of the user are stuck with sweat, oil stain and the like. Moreover, the convex structure can also form a shielding effect on the user's fingers, so as to prevent impurities (such as water drops) on the user's fingers from entering the pins 220 or the sockets 30, and prevent the user's fingers from touching the pins 220 or the sockets 30 to get an electric shock.

It should be noted that, when the power adapter 10 is in the extended state, the surrounding wall 112 may also have a different configuration from that shown in fig. 6, such as that shown in fig. 7. In fig. 7, the circumferential wall 112 has a corrugated structure. For other possible embodiments, they are not described in detail here.

Further, for the power adapter 10, when the power adapter 10 is plugged into the socket 30, in order to prevent the power of the socket 30 from leaking out through the pins 220 and causing injury to the user, the distance from the edge of the pins 220 to the edge of the housing assembly 100 needs to be greater than or equal to a preset distance (also referred to as a safety distance). Wherein the preset distance may be, but is not limited to, 5.1mm, 6.5mm, 7.9mm, etc.

Referring to fig. 6 and 7, in one embodiment, when the power adapter 10 is in the extended state, the end surfaces of the end cover 111 and the circumferential wall 112 facing away from the second housing 120 together form a plug surface. The plugging surface is an outer surface of the first housing 110 facing or adjacent to the socket 30 when the pins 220 of the power adapter 10 are inserted into the socket 30. The socket meets the safety requirements of the power adapter 10, that is, the distance from the edge of the pin 220 to the edge of the socket is greater than or equal to the installation distance.

The present embodiment is described from another perspective: when the power adapter 10 is in the extended state, the minimum distance H1 from the pins 220 to the outer edge of the circumferential wall 112 is greater than or equal to the safety distance, i.e., the minimum distance from the left pin 220 to the outer edge of the circumferential wall 112 is greater than or equal to the safety distance, and the minimum distance from the right pin 220 to the outer edge of the circumferential wall 112 is greater than or equal to the safety distance, which is indicated by only one pin 220 in fig. 6 and 7.

In the conventional art, the housing assembly 100 of the power adapter 10 cannot be deformed to form the convex structure, and therefore, the minimum distance from the pins 220 to the outer edge of the end cover 111 is usually set to be greater than or equal to the safety distance, which results in a larger radial dimension of the housing assembly 100 of the power adapter 10. For the power adapter 10 provided in the present application, when the power adapter 10 is in the extended state, the annular wall 112 is deformed to protrude in a direction away from the pins 220 to form a convex structure. In the present embodiment, the annular wall 112 and the end cap 111 are considered to be within a safe distance, that is, the end faces of the end cap 111 and the annular wall 112 facing away from the second housing together form a plug surface, and this arrangement makes it possible to design the radial dimension of the end cap 111 to be smaller than that of the conventional art, so that the overall size of the power adapter 10 is also reduced, and the power adapter 10 is miniaturized.

Referring to fig. 6 and 7, in another embodiment, the arrangement form of the plugging surface may also be: the end face of the end cap 111 facing away from the second housing 120 is an insertion face. From another perspective, the minimum distance H2 from the pin 220 to the outer edge of the end cap 111 is greater than or equal to the safety distance, i.e., the minimum distance from the left pin 220 to the outer edge of the end cap 111 is greater than or equal to the safety distance, and the minimum distance from the right pin 220 to the outer edge of the end cap 111 is greater than or equal to the safety distance.

Referring to fig. 8, the housing assembly 100 further includes a reinforcing cover 130. The reinforcing cover 130 is coupled to the end cover 111 of the first housing 110. The through hole Z2 penetrates the reinforcing cover 130 and the end cover 111. Wherein the reinforcing cover 130 has a hardness greater than that of the end cap 111. The reinforcing cover 130 is made of an insulating material, which may be, but is not limited to, a hard plastic. The reinforcing cover 130 and the first housing 110 may be formed as one body by, but not limited to, two-color transfer. In other embodiments, the reinforcing cover 130 and the first housing 110 may be separately formed and then bonded together using glue or double-sided tape.

It should be noted that the reinforcing cover 130 may be disposed in the accommodating space Z1 and connected to one side of the end cover 111 close to the second housing 120. The reinforcing cover 130 may also be disposed outside the accommodating space Z1 and connected to a side of the end cover 111 facing away from the second housing 120. Of course, other possible embodiments of the reinforcing cover 130 and the end cap 111 exist, for example, the reinforcing cover 130 is embedded in the end cap 111, a part of the reinforcing cover 130 is located in the accommodating space Z1, and a part of the reinforcing cover 130 is located outside the accommodating space Z1, and for other possible embodiments not described in detail herein, the present application only exemplifies that the reinforcing cover 130 is located in the accommodating space Z1.

It is understood that, for reasons of cost saving, easy manufacturing, etc., the end cap 111 and the circumferential wall 112 may be made of the same material, and if the material of the end cap 111 and the material of the circumferential wall are the same, the end cap 111 may deform under the action of an external force like the circumferential wall 112. In the process of converting the power adapter 10 from the accommodated state to the extended state, the user can press the end cap 111 of the first housing 110 with a finger, so that the end cap 111 gradually approaches the second housing 120, and thus the pins 220 gradually emerge from the through holes Z2. However, when the user presses the end cap 111 with a finger, the end cap 111 may be deformed by the pressing action of the finger due to uneven force application of the finger, so that the end cap 111 may be twisted and skewed relative to the pins 220, and further, the friction force formed between the pins 220 and the end cap 111 may be uneven, so that the end cap 111 may not move continuously. If the end cap 111 is forcibly pressed at this time, the end cap 111 may be irreversibly deformed or even torn. In the embodiment, the end cap 111 is connected to the reinforcing cap 130, and since the rigidity of the reinforcing cap 130 is greater than that of the end cap 111, when the user directly or indirectly presses the end cap 111, the end cap 111 will not be easily deformed and twisted and skewed with respect to the pins 220, so as to overcome or weaken the above problem, and the user can smoothly press the end cap 111.

Referring to fig. 8, the reinforcing cap 130 includes a cap portion 131 and an extension portion 132. The cover portion 131 is connected to a side of the end cover 111 close to the second housing 120. The extension 132 is protruded from a side of the cover part 131 facing away from the end cover 111. The through hole Z2 penetrates the end cap 111, the cover 131 and the extension 132. In the process of converting the power adapter 10 from the accommodated state to the extended state, the pins 220 are inserted into the through holes Z2 of the end cap 111, the cover portion 131 and the extension portion 132. During the switching state of the power adapter 10, the extension portion 132 is used to increase the matching length of the pin 220 and the through hole Z2, so that the axes of the pin 220 and the through hole Z2 in the preset direction are kept consistent as much as possible, thereby preventing the end cover 111 and the reinforcing cover 130 from tilting relative to the pin 220 as much as possible, and ensuring that the pin 220 slides more smoothly in the through hole Z2.

The description is in reverse angle: if the extension portion 132 is removed, the fitting length of the pins 220 and the through holes Z2 is short, and since the first housing 110 is easily deformed by force, the short fitting length easily causes the end cover 111 and the reinforcing cover 130 to tilt relative to the pins 220 during the process of pressing the end cover 111 with fingers to expose the pins 220, thereby being unfavorable for the end cover 111 and the reinforcing cover 130 to move further. Therefore, the extension 132 provided on the reinforcing cover 130 can increase the fitting length, thereby facilitating switching of the state of the power adapter 10.

Referring to fig. 8, when the power adapter 10 is in the receiving state, the pins 220 are at least partially inserted into the through holes Z2. It should be noted that, when the reinforcing cover 130 is disposed in the accommodating space Z1, the pins 220 may be inserted only in the through holes Z2 of the reinforcing cover 130, or may be inserted in the through holes Z2 of the reinforcing cover 130 and the end cover 111 at the same time. When the reinforcing cover 130 is disposed outside the accommodating space Z1, the pins 220 may be inserted only into the through holes Z2 of the end cover 111, or may be inserted into the through holes Z2 of both the end cover 111 and the reinforcing cover 130.

It can be understood that, if the pins 220 are not inserted into the through holes Z2 when the power adapter 10 is in the received state, the through holes Z2 need to be aligned with the pins 220 before the power adapter 10 is switched from the received state to the extended state, and then the end cap 111 needs to be pressed to expose the pins 220. However, the first housing 110 is easily deformed by a force, and thus, in the process of pressing the cover 111, the through hole Z2 may be misaligned with the pin 220, thereby making it difficult to expose the pin 220. In the present embodiment, the pins 220 of the power adapter 10 in the accommodated state are inserted into the through holes Z2, so that the operation of aligning the through holes Z2 with the pins 220 is omitted, and the above problem can be overcome, so that the user can smoothly switch the power adapter 10 from the accommodated state to the extended state.

Referring to fig. 8, the circumferential wall 112 includes a body portion 1121 and a connecting portion 1122. The body portion 1121 is connected to the end cap 111. The body portion 1121 functions to expand and contract. The connecting portion 1122 is connected around the periphery of the body portion 1121 and protrudes from the inner wall of the body portion 1121, that is, the connecting portion 1122 is annular and is connected to the periphery of the body portion 1121 in a bending manner. The connecting portion 1122 is connected to the second housing 120 on a side away from the main body portion 1121.

Further, the bearing seat 210 includes a bearing body 211 and a flange portion 212. The bearing body 211 is partially located in the first housing 110, and the other part is located in the second housing 120, and the bearing body 211 is used for bearing the pins 220. The flange portion 212 is circumferentially connected to the outer periphery of the bearing body 211, that is, the flange portion 212 is annular and is protruded to the outer periphery of the bearing body 211. The flange portion 212 and the carrier body 211 together form a receiving space Z3. The receiving space Z3 is configured to receive at least a portion of the connecting portion 1122, so that the movement of the flange portion 212 can be limited by the connecting portion 1122, and the carrier 210 is not easily separated from the first housing 110.

Further, the flange portion 212 is connected to the circumferential wall 112 and the bearing body 211 is connected to the inner wall of the second housing 120. Note that, the connection form between the flange portion 212 and the annular peripheral wall 112 may be: flange portion 212 is connected to body portion 1121 or connecting portion 1122, or to both body portion 1121 and connecting portion 1122. The connecting medium of the flange portion 212 and the surrounding wall 112 may be, but is not limited to, glue.

It can be understood that, due to the limited connection length of the connection portion 1122 of the first housing 110 and the second housing 120, if the connection portion 1122 and the second housing 120 are not firmly connected, or the first housing 110 and the second housing 120 are relatively pulled by an external force, the first housing 110 and the second housing 120 are likely to be separated. In this embodiment, the flange portion 212 of the bearing seat 210 is connected to the circumferential wall 112 of the first housing 110, and the bearing body 211 of the bearing seat 210 is connected to the inner wall of the second housing 120, so that the connection function between the first housing 110 and the second housing 120 is indirectly enhanced through the bearing seat 210, and the first housing 110, the second housing 120 and the bearing seat 210 are not easily separated.

Referring to fig. 9, the carrier body 211 has a plurality of receiving grooves Z4, and the plurality of receiving grooves Z4 are arranged along the periphery of the carrier body 211 at intervals. The receiving groove Z4 can be used to receive glue, and before the glue is not solidified, the glue flows out of the receiving groove Z4 due to the influence of gravity, so that the portion of the bearing main body 211 not provided with the receiving groove Z4 is covered with the glue, thereby ensuring that there is enough glue between the bearing main body 211 and the second housing 120 for bonding, and ensuring that the bonding area between the bearing main body 211 and the second housing 120 is large enough.

Referring to fig. 10, the power adapter 10 further includes a fixing assembly 300, and the fixing assembly 300 includes a first fixing member 310 and a second fixing member 320. The first fixing member 310 is connected to the end cap 111. The second fixing member 320 is connected to the carrier 210. The first fixing member 310 and the second fixing member 320 are configured to cooperate with each other to maintain the power adapter 10 in the extended state.

The first fixing member 310 is directly or indirectly connected to the end cap 111. In fig. 10, the first fixing member 310 is indirectly connected to the end cap 111 through the reinforcing cap 130, that is, the first fixing member 310 is connected to the reinforcing cap 130, and the reinforcing cap 130 is carried on the end cap 111. In other embodiments, the first fixing member 310 may be directly connected to the end cap 111.

Further, the first fixing member 310 and the second fixing member 320 may be magnetically coupled. Specifically, the first and second fixtures 310 and 320 are each a magnetic member having a magnetic substance, such as a permanent magnet. In the process of switching the power adapter 10 from the accommodated state to the extended state, the first fixing member 310 and the second fixing member 320 gradually approach each other, so that the magnetic attraction is gradually enhanced. When completely switched to the extended state, the mutual magnetic attraction force of the first fixing member 310 and the second fixing member 320 in the preset direction is equal to the self-return force of the first housing 110 in the preset direction, thereby maintaining the power adapter 10 in the extended state.

Further, the first fixing element 310 and/or the second fixing element 320 may also be an electromagnet, and when the first fixing element 310 and/or the second fixing element 320 are powered on, the first fixing element 310 and the second fixing element 320 attract each other magnetically.

It is understood that the power adapter 10 provided in the present application can automatically switch between the accommodated state and the extended state by using the electromagnet. In the following, the first fixing member 310 is exemplified as a magnet, and the second fixing member 320 is exemplified as an electromagnet.

The power adapter 10 is automatically switched from the accommodated state to the extended state: when the power adapter 10 is in the storage state, the second fixing member 320 is turned on, so that the second fixing member 320 magnetically attracts the first fixing member 310. The first fixing member 310 further drives the end cap 111 to move toward the second housing 120, so that the first housing 110 gradually contracts and the pins 220 gradually emerge until the power adapter 10 completely changes to the extended state, and the second fixing member 320 is kept in the open state to maintain the power adapter 10 in the extended state.

The power adapter 10 is automatically switched from the extended state to the housed state: when the power adapter 10 is in the extended state, the second fixing member 320 is closed, so that the second fixing member 320 no longer magnetically attracts the first fixing member 310. The first housing 110 is stretched and gradually extended under the elastic action of itself, so that the exposed pins 220 gradually return to the accommodating spaces Z1 until the power adapter 10 is completely converted into the accommodating state.

The automatic switching process of the two states of the power adapter 10 can be realized by pressing, sensing, voice, etc. The pressing mode may be that a key is arranged on the power adapter 10, and after a user presses the key, the electromagnet is turned on or off; the sensing mode may be that a functional device (such as a sensor and a camera) is disposed on the power adapter 10, and after the functional device senses a specific operation (such as a specific gesture) of a user, the electromagnet is turned on or off; the voice may be provided in a form that a microphone is disposed on the power adapter 10, and when the microphone receives an opening voice or a closing voice from a user, the electromagnet is turned on or off.

It should be noted that, in the way that the first fixing element 310 and the second fixing element 320 are magnetically coupled, when the power adapter 10 is in the extended state, the first fixing element 310 and the second fixing element 320 may or may not be in contact with each other, as long as the magnetic attraction between the two elements can maintain the power adapter 10 in the extended state, which is not limited in the present application.

Referring to fig. 11, in other embodiments, the first fixing element 310 and the second fixing element 320 may also be mechanically engaged. For example, the first fixing member 310 and the second fixing member 320 are hook structures, and when the power adapter 10 is in the extended state, the first fixing member 310 and the second fixing member 320 are hooked together, so that the power adapter 10 is maintained in the extended state. When the power adapter 10 needs to be switched to the storage state, the first fixing member 310 and the second fixing member 320 are disengaged, and then the first housing 110 returns to the original length by its own elasticity, so that the power adapter 10 is switched to the storage state. Of course, the mechanical engaging structure of the first fixing element 310 and the second fixing element 320 may also be in other forms, and for other possible embodiments, a detailed description thereof is omitted here.

Referring to fig. 12, the present application further provides an electronic device assembly 1, where the electronic device assembly 1 includes an electronic device 20 and the power adapter 10 described in any of the above embodiments, and the power adapter 10 is configured to provide power for the electronic device 20.

Generally, the power adapter 10 can convert an alternating voltage into a direct voltage. For example, the power adapter 10 is plugged into the socket 30, receives the ac voltage output from the socket 30, and converts the received ac voltage into a dc voltage, which is used to charge the battery of the electronic device 20 using electricity, such as a mobile phone and a computer. It is to be appreciated that in other embodiments, the power adapter 10 converts the received ac voltage to a dc voltage that is directly available to the electronic components in the electronic device 20. Please refer to the foregoing description for the power adapter 10, which is not described herein.

Although embodiments of the present application have been shown and described, it is understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present application, and that such changes and modifications are also to be considered as within the scope of the present application.

Claims (10)

1. A power adapter is characterized in that the power adapter comprises a shell assembly and a pin assembly, the shell assembly comprises a first shell and a second shell, the first shell and the second shell are connected and jointly form an accommodating space, the accommodating space is used for accommodating the pin assembly, the first shell is provided with through holes communicated with the accommodating space, the pin assembly comprises a bearing seat and pins borne on the bearing seat, and the pins are arranged corresponding to the through holes;

the power adapter is provided with a containing state that the first shell extends along a preset direction and the plug pins are contained in the shell assembly, and an extending state that the first shell contracts along the preset direction and the plug pins penetrate through the through holes and are exposed outside the shell assembly.

2. The power adapter as claimed in claim 1, wherein the first housing includes an end cap and a circumferential wall, the end cap has the through hole, the circumferential wall is connected to a circumference of the end cap in a bent manner, and an end of the circumferential wall, which is away from the end cap, is connected to the second housing, when the power adapter is in the accommodated state, a radial dimension of the circumferential wall is a first dimension, and when the power adapter is in the extended state, a radial dimension of the circumferential wall is a second dimension, which is greater than the first dimension.

3. The power adapter of claim 2 wherein the end of said end cap facing away from said second housing is a mating surface; or when the power adapter is in an extending state, the end cover and the end face of the annular wall, which is far away from the second shell, jointly form a plug-in surface.

4. The power adapter as claimed in claim 2, wherein the housing assembly further comprises a reinforcing cover connected to the end cap, the through hole extending through the reinforcing cover and the end cap, wherein the reinforcing cover has a stiffness greater than a stiffness of the end cap.

5. The power adapter as claimed in claim 4, wherein the reinforcing cover includes a cover portion and an extension portion, the cover portion is connected to a side of the end cover close to the second casing, the extension portion is protruded from a side of the cover portion facing away from the end cover, the through hole penetrates through the end cover, the cover portion and the extension portion, and the pins are inserted into the through holes of the end cover, the cover portion and the extension portion when the power adapter is changed from the accommodated state to the extended state.

6. The power adapter as claimed in claim 2, wherein the circumferential wall includes a body portion connected to the end cap and a connecting portion surrounding a circumferential edge of the body portion and protruding from an inner wall of the body portion, the connecting portion being connected to the second housing on a side thereof remote from the body portion; the bearing seat comprises a bearing main body and a flange part, the flange part is connected to the periphery of the bearing main body in a surrounding mode, and the flange part and the bearing main body jointly form a containing space which is used for containing at least part of the connecting part; the flange portion is connected to the circumferential wall and the carrier body is connected to an inner wall of the second housing.

7. The power adapter of claim 6, wherein the carrier body has a plurality of receiving slots spaced along an outer periphery of the carrier body.

8. The power adapter according to any one of claims 2-7, wherein the pins are at least partially inserted into the through holes when the power adapter is in the received state.

9. The power adapter as claimed in any one of claims 2-7, further comprising a securing assembly, the securing assembly comprising a first securing member and a second securing member, the first securing member being connected to the end cap, the second securing member being connected to the carrier, the first securing member and the second securing member being configured to cooperate to maintain the power adapter in an extended state.

10. An electronic device assembly, characterized in that the electronic device assembly comprises an electronic device and a power adapter according to any of claims 1-9 for providing power supply to the electronic device.

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