Double-insert type charger

Abstract

The invention relates to the technical field of chargers, and discloses a double-plug-piece charger which comprises a shell and a plug piece assembly, a first limiting groove and a second limiting groove are formed in the inner wall of the shell, and a first shifting piece and a second shifting piece are arranged on the side wall of the shell; the insertion piece assembly is movably arranged in the shell and comprises an insertion piece base, a splayed insertion piece arranged at one end of the insertion piece base and a parallel insertion piece arranged at the other end of the insertion piece base; a first elastic piece and a second elastic piece are arranged on the insertion piece base; when the insertion piece assembly is located at the first position, the splayed insertion piece extends out of the shell, the first elastic piece is clamped in the first limiting groove, and the first elastic piece can be separated from the first limiting groove by pressing the first shifting piece; when the insertion piece assembly is located at the second position, the parallel insertion pieces extend out of the shell, the second elastic piece is clamped in the second limiting groove, and the second elastic piece can be separated from the second limiting groove by pressing the second shifting piece. The device is suitable for both a two-hole socket and a three-hole socket, and is simple in structure, convenient to operate and reliable to use.

Description

Technical Field

[0001] The present invention relates to the technical field of chargers, and in particular to a dual-plug charger. Background Art

[0002] With the increase of electronic products, more and more electrical appliances need to be charged by chargers in life, such as Bluetooth headsets, mobile phones, handheld fans, etc. When people go out, especially in public places such as airports and stations, public socket resources become scarce due to the large flow of people, and ordinary chargers can only be used for two-hole sockets, not three-hole sockets. Taking the most commonly used five-hole socket panel as an example, when the two-hole socket is used, the three-hole socket is idle and cannot be charged, which brings inconvenience to people.

[0003] Therefore, a dual-plug charger is urgently needed to solve the above technical problems. Summary of the invention

[0004] Based on the above, the purpose of the present invention is to provide a dual-blade charger that can be used in both two-hole sockets and three-hole sockets, and has a simple structure, easy operation, and reliable use.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A dual-plug charger, comprising:

[0007] A housing, wherein a first limiting groove and a second limiting groove are provided on an inner wall of the housing, and a first paddle opposite to the first limiting groove and a second paddle opposite to the second limiting groove are provided on a side wall of the housing, wherein the first paddle and the second paddle can move along the inner and outer sides of the housing after being pressed;

[0008] A plug-in assembly is movably arranged in the housing along a first direction, and the plug-in assembly includes a plug-in base, an eight-shaped plug-in arranged at one end of the plug-in base, and a parallel plug-in arranged at the other end of the plug-in base; a first elastic member and a second elastic member are arranged on the plug-in base;

[0009] The plug assembly has a first position and a second position. When in the first position, the figure-eight plug extends out of the shell, and the first elastic member is engaged in the first limiting groove. By pressing the first paddle, the first elastic member can be disengaged from the first limiting groove; when in the second position, the parallel plug extends out of the shell, and the second elastic member is engaged in the second limiting groove. By pressing the second paddle, the second elastic member can be disengaged from the second limiting groove.

[0010] In some possible implementations, the first paddle and the second paddle each include: a fixed portion and a movable portion, the fixed portion being fixedly connected to the side wall of the shell, and the outer periphery of the movable portion having a hollow space with the side wall of the shell so as to move inside and outside the shell.

[0011] In some possible embodiments, the inner wall of the shell is further provided with a third limiting groove, and the first limiting groove, the third limiting groove, and the second limiting groove are arranged in sequence along the first direction; when the plug-in assembly is in the first position, the first elastic member is located in the first limiting groove, and the second elastic member is located in the third limiting groove; when the plug-in assembly is in the second position, the second elastic member is located in the second limiting groove, and the first elastic member is located in the third limiting groove.

[0012] In some possible embodiments, the first elastic member and the second elastic member are both limiting spring pieces, one end of the limiting spring piece along the first direction is fixedly connected to the plug-in base, and the other end along the first direction is suspended relative to the surface of the plug-in base, and the suspended end can bend toward the direction close to the surface of the plug-in base after being compressed; one end of the first elastic member suspension and one end of the second elastic member suspension are arranged facing each other.

[0013] In some possible implementations, a circuit board is disposed in the shell, and when the plug assembly is in a first position, the figure-eight plug is electrically connected to the circuit board; when the plug assembly is in a second position, the parallel plug is electrically connected to the circuit board.

[0014] In some possible implementations, one of the inner wall of the shell and the insert base is provided with a first slide rail extending along a first direction, and the other is provided with a slider, and the slider is slidably connected to the first slide rail.

[0015] A dual-plug charger, comprising:

[0016] A housing, wherein a first limiting groove and a second limiting groove are provided on an inner wall of the housing, and a first paddle corresponding to the first limiting groove and a second paddle corresponding to the second limiting groove are provided on a side wall of the housing, wherein the first paddle and the second paddle can move along the inner and outer sides of the housing after being pressed;

[0017] A parallel plug assembly, comprising a first base arranged in the housing and a parallel plug arranged on the first base;

[0018] The figure-eight plug assembly comprises a second base movably arranged in the shell along a first direction and an figure-eight plug arranged on the second base, and the second base is provided with a first elastic member and a second elastic member; the figure-eight plug assembly has a first position and a second position, when in the first position, the figure-eight plug extends out of the shell, the first elastic member is engaged in the first limiting groove, and the first elastic member can be disengaged from the first limiting groove by pressing the first paddle; when in the second position, the figure-eight plug retracts into the shell, the second elastic member is engaged in the second limiting groove, and the second elastic member can be disengaged from the second limiting groove by pressing the second paddle.

[0019] In some possible implementations, a first elastic reset member is provided between the figure-eight plug assembly and the shell, and the first elastic reset member has a tendency to cause the figure-eight plug to extend out of the shell.

[0020] In some possible embodiments, the parallel plug assembly is movably disposed in the shell along a first direction, and the parallel plug assembly has a third position and a fourth position. When in the third position, the parallel plugs extend out of the shell, and when in the fourth position, the parallel plugs are retracted into the shell.

[0021] In some possible implementations, a second elastic reset member is provided between the parallel plug-in sheet assembly and the shell, and the second elastic reset member has a tendency to cause the parallel plug-in sheets to extend out of the shell.

[0022] Beneficial effects of the present invention:

[0023] In the dual-blade charger provided by the present invention, when the blade assembly (or the eight-shaped blade assembly) moves to the first position along the first direction, the eight-shaped blade extends out of the shell, and the eight-shaped blade can be plugged into the inverted eight-shaped hole in the three-hole socket. At this time, the first elastic member is clamped in the first limiting groove, so that the blade assembly (or the eight-shaped blade assembly) is fixed and cannot continue to move in the shell, thereby ensuring the plug-in reliability of the eight-shaped blade and the three-hole socket; and when it is necessary to use parallel blades, it is only necessary to press the first paddle to make the first elastic member break away from the restriction of the first limiting groove, so that the blade assembly (or the eight-shaped blade assembly) can be pushed. The blade assembly) moves along the first direction to the second position, at which time the figure-eight blade is retracted into the shell, and the parallel blade extends out of the shell, and the parallel blade can be plugged into an ordinary two-hole socket, and at this time the second elastic member is clamped in the second limiting groove, so that the blade assembly (or the figure-eight blade assembly) is fixed and cannot continue to move in the shell, thereby ensuring the plug-in reliability of the parallel blade and the two-hole socket; and when it is necessary to switch back to the figure-eight blade, it is only necessary to press the second paddle to make the second elastic member disengage from the restriction of the second limiting groove, and the blade assembly (or the figure-eight blade assembly) can be pushed to move along the first direction to the first position.

[0024] The dual-blade charger extends different blades according to different application scenarios. When the two-hole socket is available, the parallel blades are extended. When the two-hole socket is used and the three-hole socket is idle, the figure-eight blades are extended. In this way, the dual-blade charger can be applied to both the two-hole socket and the three-hole socket, and has a simple structure, convenient operation, and reliable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 1 is a schematic diagram of the structure of a dual-blade charger provided by an embodiment of the present invention from a first angle;

[0026] Figure 2 is a schematic diagram of the structure of the dual-blade charger provided by an embodiment of the present invention from a second angle;

[0027] Figure 3 is a schematic diagram of the structure of the dual-blade charger provided by an embodiment of the present invention after removing the shielding member;

[0028] Figure 4 is a schematic structural diagram of a dual-blade charger provided by an embodiment of the present invention with the rear cover and the shielding member removed;

[0029] Figure 5 is a schematic structural diagram of a housing provided by an embodiment of the present invention;

[0030] Figure 6 is a schematic diagram of the first angle structure of the housing and the conductive spring provided in an embodiment of the present invention;

[0031] Figure 7 is a schematic diagram of the structure of the housing and the conductive spring provided by an embodiment of the present invention from a second angle;

[0032] Figure 8 is a schematic diagram of the structure of the insert assembly provided by an embodiment of the present invention from a first angle;

[0033] Fig. 9 is a schematic diagram of the structure of the insert assembly provided by an embodiment of the present invention from a second angle;

[0034] Fig.10 is a schematic diagram of the first angle structure of a circuit board provided by an embodiment of the present invention;

[0035] Fig.11 is a schematic diagram of the structure of the circuit board provided by an embodiment of the present invention from a second angle;

[0036] Fig.12 is a schematic diagram of the first angle structure of the back cover provided by an embodiment of the present invention;

[0037] Fig.13 is a schematic diagram of the structure of the back cover at a second angle provided by an embodiment of the present invention;

[0038] Fig.14 It is a schematic diagram of the structure of a shielding member provided in an embodiment of the present invention.

[0039] In the figure:

[0040] 1. Shell; 101. Figure-8 jack; 102. Parallel jack; 111. First limiting slot; 112. Second limiting slot; 113. Third limiting slot; 121. First paddle; 122. Second paddle; 131. First slide rail; 132. Second slide rail; 14. Support plate; 15. Back cover; 151. Buckle; 152. Mounting cavity; 153. Snap-in slot; 16. Slot; 17. USB interface reserved hole;

[0041] 2. Insertion piece assembly; 21. Insertion piece base; 211. First elastic member; 212. Second elastic member; 213. Third conductive terminal; 214. Fourth conductive terminal; 215. Slider; 22. Eight-shaped insert; 23. Parallel insert;

[0042] 3. Conductive spring; 31. First conductive terminal; 32. Second conductive terminal;

[0043] 4. Circuit board; 41. Voltage transformer; 42. Voltage stabilizer; 43. Fuse; 44. USB interface; 45. Fifth conductive terminal;

[0044] 5. Shielding member; 51. cam. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of the present invention, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] The embodiment of the present invention provides a dual-blade charger for charging electronic products such as mobile phones, tablets, Bluetooth headsets, and handheld fans, so as to solve the problem that the charger in the prior art can only be used for two-hole sockets but not for three-hole sockets.

[0050] Embodiment 1

[0051] like Figures 1 to 14As shown, this embodiment provides a dual-blade charger, including a housing 1 and a blade assembly 2, wherein a receiving cavity is provided in the housing 1, and the blade assembly 2 is movably installed in the receiving cavity along a first direction. The blade assembly 2 includes a blade base 21, an eight-shaped blade 22, and a parallel blade 23, wherein the eight-shaped blade 22 is provided at one end of the blade base 21 along the first direction, and the parallel blade 23 is provided at the other end of the blade base 21 along the first direction, and the eight-shaped blade 22 and the parallel blade 23 are not connected to each other, and are respectively used to connect with different types of sockets. Specifically, the eight-shaped blade 22 is suitable for the inverted eight-shaped hole of an ordinary three-hole socket, and the parallel blade 23 is suitable for an ordinary two-hole socket. The plug assembly 2 of this embodiment has a first position and a second position. When the plug assembly 2 moves to the first position along the first direction, the eight-shaped plug 22 extends out of the housing 1. At this time, the eight-shaped plug 22 can be plugged into the three-hole socket to realize the charging function of the charger; when the plug assembly 2 moves to the second position along the first direction, the parallel plug 23 extends out of the housing 1. At this time, the parallel plug 23 can be plugged into the two-hole socket to realize the charging function of the charger. The dual-plug charger of this embodiment extends different plugs according to different application scenarios. When the two-hole socket is available, the parallel plug 23 is extended. When the two-hole socket is used and the three-hole socket is idle, the eight-shaped plug 22 is extended. In this way, the dual-plug charger can be applied to both the two-hole socket and the three-hole socket, and has a simple structure, convenient operation, and reliable use. In this embodiment, the first direction is specifically the front-to-back direction of the housing 1.

[0052] Further, when the eight-shaped plug 22 extends out of the housing 1, the parallel plug 23 can be retracted into the housing 1; when the parallel plug 23 extends out of the housing 1, the eight-shaped plug 22 can be retracted into the housing 1. Such a setting can prevent the plugs that are not used during the charging process from being exposed outside the charger, so that the eight-shaped plug 22 and the parallel plug 23 can only be connected to the socket, thereby improving the safety and reliability of the charger; and the above setting also makes the appearance of the charger neater and easier to store and carry. Specifically, an eight-shaped plug hole 101 is provided at one end of the housing 1 close to the eight-shaped plug 22. When the eight-shaped plug 22 is needed, it can be extended from the eight-shaped plug hole 101, and when the eight-shaped plug 22 is not needed, it can be retracted into the inside of the eight-shaped plug hole 101; at the same time, a parallel plug hole 102 is provided at one end of the housing 1 close to the parallel plug 23 to facilitate the parallel plug 23 to extend therefrom or retract into the inside of the parallel plug hole 102. This effectively improves the convenience and safety of the charger, allowing the corresponding plug to be retracted into the socket when not in use, avoiding being exposed and bent and damaged, while reducing space occupied and making it easier to carry.

[0053] In this embodiment, a conductive spring 3 is further provided in the housing 1, and two first conductive terminals 31 and two second conductive terminals 32 are provided on the conductive spring 3. Two third conductive terminals 213 and two fourth conductive terminals 214 are provided on the plug base 21, wherein each third conductive terminal 213 is electrically connected to the eight-shaped plug 22, and each fourth conductive terminal 214 is electrically connected to the parallel plug 23. When the plug assembly 2 moves to the first position, the two first conductive terminals 31 are electrically contacted with the two third conductive terminals 213 one by one, thereby realizing electrical conduction between the eight-shaped plug 22 and the conductive spring 3, and conveniently charging by plugging the eight-shaped plug 22 into the three-hole socket; when the plug assembly 2 moves to the second position, the two second conductive terminals 32 are electrically contacted with the two fourth conductive terminals 214 one by one, thereby realizing electrical conduction between the parallel plug 23 and the conductive spring 3, and conveniently charging by plugging the parallel plug 23 into the two-hole socket. Optionally, the two first conductive terminals 31 are arranged in sequence along the second direction, the two second conductive terminals 32 are arranged in sequence along the second direction, the two third conductive terminals 213 are arranged in sequence along the second direction, and the two fourth conductive terminals 214 are arranged in sequence along the second direction. In this embodiment, the second direction is perpendicular to the first direction, specifically the width direction of the housing 1.

[0054] Furthermore, a circuit board 4 is also provided in the housing 1, and two fifth conductive terminals 45 are provided on the circuit board 4. The circuit board 4 is electrically connected to the conductive spring sheet 3 through the two fifth conductive terminals 45, so that when the plug assembly 2 is in the first position, the eight-shaped plug sheet 22 is electrically connected to the circuit board 4, and when the plug assembly 2 is in the second position, the parallel plug sheet 23 is electrically connected to the circuit board 4. Specifically, a voltage transformer 41, a voltage stabilizing element 42, a fuse 43 and a USB interface 44 are provided on the circuit board 4. The current on the eight-shaped plug sheet 22 or the parallel plug sheet 23 flows to the circuit board 4 through the conductive spring sheet 3, and then flows to the USB interface 44 through the voltage transformer 41, the voltage stabilizing element 42 and the fuse 43 in sequence, so that the eight-shaped plug sheet 22 or the parallel plug sheet 23 is electrically connected to the USB interface 44. In addition, a USB interface reserved hole 17 is also provided on the housing 1 to facilitate the insertion of the USB cable, and the other end of the USB cable is connected to the electronic product.

[0055] In order to fix the position of the plug-in assembly 2, in this embodiment, the inner wall of the shell 1 is provided with a first limiting groove 111 and a second limiting groove 112, and the plug-in base 21 is provided with a first elastic member 211 and a second elastic member 212, wherein the first elastic member 211 is used to snap-fit ​​with the first limiting groove 111 to limit the plug-in assembly 2 to the first position; the second elastic member 212 is used to snap-fit ​​with the second limiting groove 112 to limit the plug-in assembly 2 to the second position. At the same time, the side wall of the shell 1 is also provided with a first paddle 121 opposite to the first limiting groove 111 and a second paddle 122 opposite to the second limiting groove 112, wherein the first paddle 121 can move along the inner and outer sides of the shell 1 after being compressed, so as to push the first elastic member 211 out of the first limiting groove 111, thereby unlocking the plug assembly 2 in the first position; the second paddle 122 can move along the inner and outer sides of the shell 1 after being compressed, so as to push the second elastic member 212 out of the second limiting groove 112, thereby unlocking the plug assembly 2 in the second position.

[0056] Specifically, the working process of this embodiment is as follows: Since the parallel plug 23 is used frequently, usually, the plug assembly 2 is located in the second position, at which time the parallel plug 23 extends out of the housing 1, and the second elastic member 212 is engaged in the second limiting groove 112, so that the plug assembly 2 is locked in the second position and cannot continue to move in the housing 1, thus ensuring the plug-in reliability of the parallel plug 23 and the two-hole socket during the charging process. When the eight-shaped plug 22 is needed, it is only necessary to press the second paddle 122 to make the second elastic member 212 disengage from the restriction of the second limiting groove 112, and then the plug assembly 2 can be pushed to move to the first position along the first direction, at which time the eight-shaped plug 22 extends out of the housing 1, and the first elastic member 211 is engaged in the first limiting groove 111, so that the plug assembly 2 is locked in the first position and cannot continue to move in the housing 1, thus ensuring the plug-in reliability of the eight-shaped plug 22 and the three-hole socket. When the parallel inserting piece 23 is needed again, the first paddle 121 is pressed to release the first elastic member 211 from the restriction of the first limiting groove 111 , so that the inserting piece assembly 2 can be pushed to move to the second position along the first direction.

[0057] Furthermore, the first limiting groove 111 and the second limiting groove 112 are both set through the side wall of the shell 1, the first paddle 121 is located on the side of the first limiting groove 111 close to the outer wall of the shell 1, and the second paddle 122 is located on the side of the second limiting groove 112 close to the outer wall of the shell 1. Optionally, the first paddle 121 and the second paddle 122 have the same structure, both including: a fixed part and a movable part, the fixed part is fixedly connected to the side wall of the shell 1, and the outer periphery of the movable part and the side wall of the shell 1 have a hollow space, so that the movable part can move to a certain extent inside and outside the shell 1, and the plug assembly 2 can be unlocked by pressing the movable part inward. In this embodiment, the first paddle 121 and the second paddle 122 are preferably integrally formed with the shell 1, with a simple structure, easy processing, and reliable use.

[0058] In this embodiment, when the first elastic member 211 is engaged with the first limiting groove 111, the second elastic member 212 is compressed and abuts against the surface of the insert base 21, and when the second elastic member 212 is engaged with the second limiting groove 112, the first elastic member 211 is compressed and abuts against the surface of the insert base 21. In order to reduce the impact on the service life of the first elastic member 211 and the second elastic member 212 due to long-term compression, a third limiting groove 113 is also provided in this embodiment. Specifically, the first limiting groove 111 and the second limiting groove 112 are sequentially arranged on the side wall of the housing 1 along the first direction, and the third limiting groove 113 is arranged between the first limiting groove 111 and the second limiting groove 112; at the same time, the first elastic member 211 and the second elastic member 212 are also sequentially arranged on the insert base 21 along the first direction. When the insert assembly 2 is in the first position, the first elastic member 211 is located in the first limiting groove 111, and the second elastic member 212 is located in the third limiting groove 113, so that a certain accommodation space can be provided for the second elastic member 212 to prevent the second elastic member 212 from being compressed for a long time and damaged, thereby affecting its resilience; when the insert assembly 2 is in the second position, the second elastic member 212 is located in the second limiting groove 112, and the first elastic member 211 is located in the third limiting groove 113, so that a certain accommodation space can be provided for the first elastic member 211 to prevent the first elastic member 211 from being compressed for a long time and damaged, thereby affecting its resilience. Of course, in order to facilitate the movement of the plug assembly 2 so that the first elastic member 211 and the second elastic member 212 can smoothly escape from the third limiting groove 113, guide slopes can be set at both ends of the third limiting groove 113, or corresponding guide structures can be set on the first elastic member 211 and the second elastic member 212, or the third limiting groove 113 can also pass through the side wall of the shell 1, and a corresponding paddle structure can also be set on the outer side of the third limiting groove 113, and the present embodiment does not impose any restrictions on this.

[0059] Optionally, in this embodiment, the first elastic member 211 is a first limiting spring sheet, and the second elastic member 212 is a second limiting spring sheet. One end of the first limiting spring sheet along the first direction is fixedly connected to the insert base 21, and the other end along the first direction is suspended relative to the surface of the insert base 21. When the insert assembly 2 slides in the housing 1, the suspended end of the first limiting spring sheet is squeezed by the inner wall of the housing 1 and bends toward the surface of the insert base 21. When the first limiting spring sheet enters the first limiting groove 111, the suspended end of the first limiting spring sheet pops outward and can abut against the groove wall of the first limiting groove 111. Similarly, one end of the second limiting spring piece along the first direction is fixedly connected to the plug base 21, and the other end along the first direction is suspended relative to the surface of the plug base 21. When the plug assembly 2 slides in the housing 1, the suspended end of the second limiting spring piece is squeezed by the inner wall of the housing 1 and bends toward the surface of the plug base 21. When the second limiting spring piece enters the second limiting groove 112, the suspended end of the second limiting spring piece pops outward and can abut against the groove wall of the second limiting groove 112. Specifically, in this embodiment, the suspended end of the first limiting spring piece and the suspended end of the second limiting spring piece are close to each other, and the fixed end of the first limiting spring piece and the fixed end of the second limiting spring piece are far away from each other.

[0060] Preferably, the third limiting groove 113 in this embodiment is a blind groove arranged on the inner wall of the housing 1 (i.e., the side wall of the housing 1 is not penetrated), and the third limiting groove 113 can not only accommodate the first elastic member 211 and the second elastic member 212, but also play a role in limiting the first elastic member 211 and the second elastic member 212. Specifically, as shown in 7 and Figure 8As shown, when the plug assembly 2 is inserted into the shell 1 from left to right along the first direction, the second limiting spring piece first enters the first limiting groove 111; then the second limiting spring piece continues to move forward and enters the third limiting groove 113. At this time, the first limiting spring piece enters the first limiting groove 111, and the suspension end of the first limiting spring piece abuts against the right side groove wall of the first limiting groove 111, so that the plug assembly 2 cannot continue to move to the right, and at the same time, the suspension end of the second limiting spring piece abuts against the left side groove wall of the third limiting groove 113, so that the plug assembly 2 cannot move to the left either. In this way, the plug assembly 2 is locked in the first position, ensuring that the eight-shaped plug 22 will not move toward the shell 1 during the process of plugging with the three-hole socket. Retract inside; then, by pressing the first paddle 121, the first limiting spring piece is disengaged from the first limiting groove 111, and the plug-in assembly 2 is pushed to continue to move to the right, until the second limiting spring piece enters the second limiting groove 112, and the first limiting spring piece enters the third limiting groove 113. At this time, the suspended end of the second limiting spring piece abuts against the left groove wall of the second limiting groove 112, so that the plug-in assembly 2 cannot move to the left, and at the same time, the suspended end of the first limiting spring piece abuts against the right groove wall of the third limiting groove 113, so that the plug-in assembly 2 cannot continue to move to the right. In this way, the plug-in assembly 2 is locked in the second position, ensuring that the parallel plug-in 23 will not retract into the shell 1 during the process of plugging into the socket.

[0061] Of course, in other embodiments, the first elastic member 211 and the second elastic member 212 may also adopt other elastic limiting members, such as spring locating pins, which can also lock the position of the insert assembly 2 by pushing the locating pins into the first limiting groove 111 or the second limiting groove 112 through the spring.

[0062] In this embodiment, in order to facilitate the installation of the plug-in assembly 2 and the circuit board 4 in the housing 1, the housing 1 is opened at one end near the eight-shaped plug-in 22, and the plug-in assembly 2 and the circuit board 4 are respectively slidably installed in the housing 1 along the first direction. Optionally, the inner wall of the housing 1 is provided with a first slide rail 131 extending along the first direction, and the plug-in base 21 is provided with a slider 215, and the slider 215 is slidably connected to the first slide rail 131, so as to achieve the guiding and limiting effect on the plug-in assembly 2, so that the plug-in assembly 2 can be installed in the housing 1 more accurately and smoothly, improve the assembly efficiency, and facilitate the disassembly and maintenance of the plug-in assembly 2; and the setting of the first slide rail 131 effectively improves the stability of the movement of the plug-in assembly 2 along the first direction. Preferably, the slider 215 is a slide bar extending along the first direction, so as to better slide with the first slide rail 131. Of course, in other embodiments, a slider 215 may be provided on the inner wall of the housing 1, and a first slide rail 131 may be provided on the insert base 21, so as to achieve a sliding connection between the insert base 21 and the housing 1. Optionally, a second slide rail 132 extending along the first direction is further provided on the inner wall of the housing 1, and the circuit board 4 is slidably connected to the second slide rail 132, so as to achieve a guiding and limiting effect on the circuit board 4, so that the circuit board 4 can be installed in the housing 1 more accurately and smoothly, thereby improving the assembly efficiency and facilitating the disassembly and maintenance of the circuit board 4.

[0063] In this embodiment, in order to facilitate fixing the conductive spring sheet 3 in the housing 1, a support plate 14 is further provided in the housing 1, and the conductive spring sheet 3 is fixed on the support plate 14. Here, the support plate 14 can be fixedly connected to the housing 1, or made by integral processing with the housing 1, or detachably installed in the housing 1. Preferably, in this embodiment, the inner wall of the housing 1 is provided with a third slide rail extending along the first direction, and the support plate 14 is slidably installed in the housing 1 through the third slide rail. Such a configuration facilitates the separate processing and manufacturing of the support plate 14, reduces the manufacturing difficulty, and facilitates the disassembly and maintenance of the conductive spring sheet 3.

[0064] Furthermore, the housing 1 of this embodiment further comprises a rear cover 15, which is detachably mounted on one end of the housing 1 near the figure-eight plug-in sheet 22, and the plug-in sheet assembly 2, the circuit board 4 and the support plate 14 are conveniently fixed in the housing 1 by installing the rear cover 15; the rear cover 15 is provided with the above-mentioned figure-eight plug-in sheet 101, which is convenient for the figure-eight plug-in sheet 22 to pass through. Exemplarily, a plurality of buckles 151 are provided on the peripheral side of the rear cover 15, and a plurality of card slots 16 are provided at the end of the housing 1, and each buckle 151 is engaged with the corresponding card slot 16, so as to realize the fixing of the rear cover 15 and the housing 1. Such a configuration has a simple structure, convenient installation and reliable connection. It should be noted that, in other embodiments, a front cover can also be provided at one end of the housing 1 near the parallel plug-in sheet 23, and the front cover is detachably connected to the housing 1, and the front cover is provided with the above-mentioned parallel plug-in sheet 102, which is used for the parallel plug-in sheet 23 to pass through.

[0065] Optionally, the charger of this embodiment further comprises a shielding member 5, which is detachably arranged at one end of the housing 1 near the eight-shaped plug 22. When the eight-shaped plug 22 is retracted into the housing 1, the shielding member 5 can be assembled on the housing 1 and shield the outside of the eight-shaped plug 22. Since the eight-shaped plug 22 is not commonly used, when the eight-shaped plug 22 is not used, the shielding member 5 covers and shields the eight-shaped plug 22 in this embodiment, making the appearance of the charger more neat and beautiful. Specifically, the rear cover 15 of this embodiment is provided with an installation cavity 152 that matches the shape of the shielding member 5, and the above-mentioned eight-shaped plug hole 101 is arranged at the bottom of the installation cavity 152; the side wall of the installation cavity 152 is provided with a snap-in groove 153, the shielding member 5 is accommodated in the installation cavity 152, and the outer periphery of the shielding member 5 is provided with a snap-in protrusion 51, and the snap-in protrusion 51 is snap-into the snap-in groove 153, thereby achieving the fixing of the shielding member 5. Preferably, the shielding member 5 of this embodiment is a silicone cap, which has good elasticity and softness, and can fit tightly with the installation cavity 152 during use to improve the sealing effect. Furthermore, a flange is provided on the edge of the silicone cap, and an annular snap-fit ​​groove is provided on the side wall of the installation cavity 152, and the flange can be snap-fitted into the annular snap-fit ​​groove, thereby achieving effective fixation of the silicone cap and the housing 1, and the assembly and disassembly are simple, and the connection is stable and reliable.

[0066] Embodiment 2

[0067] This embodiment provides another dual-plug charger, which is different from the first embodiment in that the parallel plugs and the eight-shaped plugs in this embodiment are independently arranged and do not interact with each other. The specific structural arrangement of the housing, circuit board, support plate, conductive spring, back cover, shielding member, each slide rail, each elastic member, each limit slot, and each paddle can refer to the structure in the first embodiment, and will not be repeated in this embodiment.

[0068] The dual-blade charger provided in this embodiment includes: a housing, a parallel blade assembly disposed at one end of the housing, and an eight-shaped blade assembly disposed at the other end of the housing, wherein the eight-shaped blade assembly is movably disposed in the housing along a first direction, and the parallel blade assembly can be fixed to the housing or also movably disposed in the housing along the first direction. The parallel blade assembly includes a first base disposed in the housing and a parallel blade fixed to the first base; the eight-shaped blade assembly includes a second base movably disposed in the housing along the first direction and an eight-shaped blade fixed to the second base.

[0069] In this embodiment, the figure-eight plug assembly has a first position and a second position. When in the first position, the figure-eight plug extends out of the shell. At this time, the figure-eight plug can be used to plug into the inverted figure-eight hole of the three-hole socket to realize the charging function of the charger; when in the second position, the figure-eight plug is retracted into the shell, so that the figure-eight plug can be hidden inside the charger when not in use, avoiding being exposed to the outside and causing bending damage, while reducing the occupied space, making the appearance of the charger neater and easier to store and carry.

[0070] Furthermore, a conductive spring is provided in the housing, and a first conductive terminal is provided on the conductive spring; a third conductive terminal is provided on the second base, and the third conductive terminal is electrically connected to the figure-eight plug. When the figure-eight plug assembly moves to the first position, the first conductive terminal is electrically in contact with the third conductive terminal, thereby achieving electrical conduction between the figure-eight plug and the conductive spring, and conveniently charging by plugging the figure-eight plug into the three-hole socket; when the figure-eight plug assembly moves to the second position, the first conductive terminal is disconnected from the third conductive terminal, and the figure-eight plug cannot be charged.

[0071] In order to fix the position of the figure-eight plug assembly, in this embodiment, the inner wall of the shell is provided with a first limiting groove and a second limiting groove, and the second base is provided with a first elastic member and a second elastic member, wherein the first elastic member is used to engage with the first limiting groove to limit the figure-eight plug assembly to the first position; the second elastic member is used to engage with the second limiting groove to limit the figure-eight plug assembly to the second position. At the same time, the side wall of the shell is provided with a first paddle relative to the first limiting groove and a second paddle relative to the second limiting groove, wherein the first paddle can move along the inner and outer sides of the shell after being pressed, so as to push the first elastic member out of the first limiting groove, thereby unlocking the figure-eight plug assembly in the first position; the second paddle can move along the inner and outer sides of the shell after being pressed, so as to push the second elastic member out of the second limiting groove, thereby unlocking the figure-eight plug assembly in the second position.

[0072] Normally, the eight-shaped plug assembly is in the second position, at which time the eight-shaped plug is retracted into the shell, and the second elastic member is engaged in the second limiting groove, so that the eight-shaped plug assembly cannot move in the shell to ensure the neatness of the charger appearance. When the eight-shaped plug is needed, just press the second paddle to make the second elastic member disengage from the restriction of the second limiting groove, and then push the eight-shaped plug assembly to move to the first position along the first direction. At this time, the eight-shaped plug extends out of the shell, and the first elastic member is engaged in the first limiting groove, so that the plug assembly is locked in the first position and cannot continue to move in the shell, thus ensuring the reliability of the plug-in connection between the eight-shaped plug and the three-hole socket. When the eight-shaped plug needs to be stored again, just press the first paddle to make the first elastic member disengage from the restriction of the first limiting groove, and then push the eight-shaped plug assembly to move to the second position along the first direction.

[0073] Furthermore, a first elastic reset member is provided between the figure-eight plug assembly and the housing, and the first elastic reset member has a tendency to make the figure-eight plug extend out of the housing. With such a configuration, after the figure-eight plug assembly is unlocked in the second position, it can automatically pop out of the housing by relying on the elastic force of the first elastic reset member, without the need for manual ejection, which is more convenient to use and improves the user experience. Optionally, the first elastic reset member is a compression spring, which has a simple structure and reliable ejection.

[0074] Preferably, the parallel plug assembly of the present embodiment is movably arranged in the shell along the first direction, and the parallel plug assembly has a third position and a fourth position. When it is in the third position, the parallel plugs extend out of the shell. At this time, the parallel plugs can be used to connect with the two-hole sockets to realize the charging function of the charger; when it is in the fourth position, the parallel plugs are retracted into the shell, so that the parallel plugs can be hidden inside the charger when not in use, avoiding bending damage when exposed to the outside, while saving space and facilitating carrying.

[0075] Furthermore, a second conductive terminal is provided on the conductive spring sheet; a fourth conductive terminal is provided on the first base, and the fourth conductive terminal is electrically connected to the parallel plug sheet. When the parallel plug sheet assembly moves to the third position, the second conductive terminal is electrically in contact with the fourth conductive terminal, thereby achieving electrical conduction between the parallel plug sheet and the conductive spring sheet, and conveniently charging by plugging the parallel plug sheet into the two-hole socket; when the parallel plug sheet assembly moves to the fourth position, the second conductive terminal is disconnected from the fourth conductive terminal, and the parallel plug sheet cannot be charged.

[0076] Similarly, in order to fix the position of the parallel plug assembly, in this embodiment, the inner wall of the shell is provided with a fourth limiting groove and a fifth limiting groove, and the first base is provided with a third elastic member and a fourth elastic member, wherein the third elastic member is used to engage with the fourth limiting groove to limit the parallel plug assembly to the third position; the fourth elastic member is used to engage with the fifth limiting groove to limit the parallel plug assembly to the fourth position. At the same time, the side wall of the shell is provided with a third paddle relative to the fourth limiting groove and a fourth paddle relative to the fifth limiting groove, wherein the third paddle can move along the inner and outer sides of the shell after being pressed, so as to push the third elastic member out of the fourth limiting groove to unlock the parallel plug assembly in the third position; the fourth paddle can move along the inner and outer sides of the shell after being pressed, so as to push the fourth elastic member out of the fifth limiting groove to unlock the parallel plug assembly in the fourth position.

[0077] Furthermore, a second elastic reset member is provided between the parallel plug assembly and the housing, and the second elastic reset member has a tendency to make the parallel plug extend out of the housing. With such a configuration, after the parallel plug assembly is unlocked in the fourth position, it can automatically pop out of the housing by relying on the elastic force of the second elastic reset member, without the need for manual ejection, which is more convenient to use and improves the user experience. Optionally, the second elastic reset member is a compression spring, which has a simple structure and reliable ejection.

[0078] The charger provided in this embodiment is suitable for both two-hole sockets and three-hole sockets by providing an eight-shaped plug assembly and a parallel plug assembly, and both the eight-shaped plug assembly and the parallel plug assembly can be retracted into the shell. When needed, they can be automatically popped out by relying on the action of the elastic reset member, and can be retracted into the shell when not in use, which is convenient for storage and carrying.

[0079] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A dual-blade charger, characterized in that: include: A shell (1), wherein the inner wall of the shell (1) is provided with a first limiting groove (111) and a second limiting groove (112), and the side wall of the shell (1) is provided with a first paddle (121) opposite to the first limiting groove (111) and a second paddle (122) opposite to the second limiting groove (112), and the first paddle (121) and the second paddle (122) are both able to move along the inner and outer sides of the shell (1) after being pressed; An inserting piece assembly (2) is movably arranged in the housing (1) along a first direction, the inserting piece assembly (2) comprising an inserting piece base (21), an eight-shaped inserting piece (22) arranged at one end of the inserting piece base (21), and a parallel inserting piece (23) arranged at the other end of the inserting piece base (21); a first elastic member (211) and a second elastic member (212) are arranged on the inserting piece base (21); The inserting piece assembly (2) has a first position and a second position. When in the first position, the eight-shaped inserting piece (22) extends out of the housing (1), the first elastic member (211) is engaged in the first limiting groove (111), and the first elastic member (211) can be disengaged from the first limiting groove (111) by pressing the first paddle (121); when in the second position, the parallel inserting piece (23) extends out of the housing (1), the second elastic member (212) is engaged in the second limiting groove (112), and the second elastic member (212) can be disengaged from the second limiting groove (112) by pressing the second paddle (122).

2. The dual-blade charger according to claim 1, characterized in that: The first paddle (121) and the second paddle (122) both comprise: a fixed portion and a movable portion, the fixed portion being fixedly connected to the side wall of the shell (1), and the outer periphery of the movable portion having a hollow space with the side wall of the shell (1) so as to be movable inside and outside the shell (1).

3. The dual-blade charger according to claim 1, characterized in that: The inner wall of the shell (1) is also provided with a third limiting groove (113), and the first limiting groove (111), the third limiting groove (113), and the second limiting groove (112) are arranged in sequence along the first direction; when the inserting piece assembly (2) is in the first position, the first elastic member (211) is located in the first limiting groove (111), and the second elastic member (212) is located in the third limiting groove (113); when the inserting piece assembly (2) is in the second position, the second elastic member (212) is located in the second limiting groove (112), and the first elastic member (211) is located in the third limiting groove (113).

4. The dual-blade charger according to claim 1, characterized in that: The first elastic member (211) and the second elastic member (212) are both position-limiting spring pieces, one end of the position-limiting spring piece along the first direction is fixedly connected to the inserting piece base (21), and the other end along the first direction is suspended relative to the surface of the inserting piece base (21), and the suspended end can be bent in a direction close to the surface of the inserting piece base (21) after being compressed; the suspended end of the first elastic member (211) and the suspended end of the second elastic member (212) are arranged facing each other.

5. The dual-blade charger according to any one of claims 1 to 4, characterized in that: A circuit board (4) is arranged in the housing (1); when the plug assembly (2) is in a first position, the eight-shaped plug (22) is electrically connected to the circuit board (4); when the plug assembly (2) is in a second position, the parallel plug (23) is electrically connected to the circuit board (4).

6. The dual-blade charger according to any one of claims 1 to 4, characterized in that: One of the inner wall of the shell (1) and the insert base (21) is provided with a first slide rail (131) extending along a first direction, and the other is provided with a slider (215), and the slider (215) is slidably connected to the first slide rail (131).

7. A dual-blade charger, characterized in that: include: A housing, wherein a first limiting groove and a second limiting groove are provided on an inner wall of the housing, and a first paddle corresponding to the first limiting groove and a second paddle corresponding to the second limiting groove are provided on a side wall of the housing, wherein the first paddle and the second paddle can move along the inner and outer sides of the housing after being pressed; A parallel plug assembly, comprising a first base arranged in the housing and a parallel plug arranged on the first base; The figure-eight plug assembly comprises a second base movably arranged in the shell along a first direction and an figure-eight plug arranged on the second base, and the second base is provided with a first elastic member and a second elastic member; the figure-eight plug assembly has a first position and a second position, when in the first position, the figure-eight plug extends out of the shell, the first elastic member is engaged in the first limiting groove, and the first elastic member can be disengaged from the first limiting groove by pressing the first paddle; when in the second position, the figure-eight plug retracts into the shell, the second elastic member is engaged in the second limiting groove, and the second elastic member can be disengaged from the second limiting groove by pressing the second paddle.

8. The dual-blade charger according to claim 7, characterized in that: A first elastic reset member is provided between the figure-eight plug-in piece assembly and the housing, and the first elastic reset member has a tendency to make the figure-eight plug-in piece extend out of the housing.

9. The dual-blade charger according to claim 7, characterized in that: The parallel plug assembly is movably arranged in the shell along a first direction. The parallel plug assembly has a third position and a fourth position. When in the third position, the parallel plugs extend out of the shell. When in the fourth position, the parallel plugs retract into the shell.

10. The dual-blade charger according to claim 9, characterized in that: A second elastic reset member is provided between the parallel plug-in sheet assembly and the shell, and the second elastic reset member has a tendency to make the parallel plug-in sheets extend out of the shell.

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