Charger having plugs of various specifications

Abstract

The present utility model relates to a charger having plugs of various specifications, comprising a housing internally provided with an accommodating cavity and a plurality of plugs of different specifications. A circuit board is mounted in the accommodating cavity; the plugs are foldably arranged on the housing and / or arranged in the accommodating cavity in a limited sliding manner and can pass through the housing; the housing is also provided with a switch which is electrically connected to the circuit board and is used for adjusting electrical conduction between the plugs of different specifications and the circuit board; and the housing is further provided with an electric connection interface electrically connected to the circuit board. The present utility model is easily portable and used, and the switch arranged on the charger can conveniently control the electrical conduction of different plugs, thereby ensuring the safety in use.

Description

Charger with multiple specifications of plugs TECHNICAL FIELD

[0001] The utility model relates to the field of charger, especially a charger with multiple specifications of plugs. BACKGROUND

[0002] The charger of the mobile phone or other portable electronic equipment used in our life is only provided with one kind of plug, but for some people who often go out for travel or business trip, the used sockets in the hotels of different countries are not the same, which leads to the problem that the used charger plug cannot match and cannot be charged. At present, the charger with conversion plug has appeared in the market, but the conversion plug of these chargers is often separated from the charger body, and needs to be assembled when used, which is inconvenient for carrying and using, and often leads to the conversion plug being lost or forgotten. TECHNICAL SOLUTION

[0003] In view of the existing deficiencies, the utility model provides a charger with multiple specifications of plugs.

[0004] The utility model discloses a charger with multiple specifications of plugs, which comprises a shell provided with a containing cavity, a plurality of plugs of different specifications, a circuit board installed in the containing cavity, the plug being foldably arranged on the shell and / or limitingly and slidably arranged in the containing cavity and capable of being pulled out of the shell, a switch for adjusting the electrical conduction between the plug of different specifications and the circuit board and electrically connected with the circuit board being further arranged on the shell, and an electrical connection interface electrically connected with the circuit board being further arranged on the shell.

[0005] Preferably, a first through hole in communication with the containing cavity is arranged on the cavity wall of the containing cavity, the plug is limitingly and slidably arranged in the containing cavity along the axial line direction of the first through hole and capable of being pulled out of the first through hole, and a strip-shaped through hole extending along the axial line direction of the first through hole is arranged on the shell; a sliding member having one end connected with the plug and the other end outside the shell is slidably arranged in the strip-shaped through hole.

[0006] Preferably, a partition plate in the form of a cylindrical structure having an axial line parallel to the axial line of the first through hole is arranged on the cavity wall of the containing cavity along the edge of the first through hole; a first opening is arranged on the side of the partition plate opposite to the strip-shaped through hole, the plug is limitingly and slidably arranged in the partition plate through a first mounting bracket, and the sliding member is connected with the first mounting bracket by sequentially penetrating through the strip-shaped through hole and the first opening.

[0007] Preferably, the plug and the cavity wall of the containing cavity are provided with a first clamping member and a first elastic sheet capable of being clamped with each other and electrically conducted.

[0008] Preferably, the inner wall of the shell is provided with a positioning block for positioning the sliding member at a position corresponding to the first opening; the sliding member comprises a press part in the shape of an I-beam which can be sleeved on the two long sides of the strip-shaped through hole, and a fixed part fixedly connected to the plug, and the press part can be elastically extended and contracted on the fixed part.

[0009] Preferably, the outer surface of the shell is provided with a first recess, the cavity wall of the accommodating cavity is provided with a second through hole in communication with the first recess, the second mounting rack is mounted in the accommodating cavity, the plug is reversely arranged in the first recess, the second mounting rack is provided with a second spring sheet in electrical communication with the circuit board, and one end of the plug passes through the second through hole and abuts against the second spring sheet.

[0010] Preferably, the second spring sheet extends a contact member which abuts against the plug and forms a V-shaped structure with the second spring sheet, and the connection between the contact member and the second spring sheet is provided with a V-shaped clamping groove protruding outward; the plug is provided with a pressing head which abuts against the contact member and can be clamped in the V-shaped clamping groove.

[0011] Preferably, the second spring sheet extends a contact member which abuts against the plug and forms a V-shaped structure with the second spring sheet; the plug is a plug with one grounding pin and two non-grounding pins; the second mounting rack is provided with a gear transmission mechanism, the grounding pin and the two non-grounding pins are drivingly connected through the gear transmission mechanism, and the non-grounding pins abut against the second spring sheet.

[0012] Preferably, the gear transmission mechanism comprises two parallelly arranged racks which are spaced apart, and a plurality of gears which are engaged with the racks; each of the racks is provided with teeth on the surfaces of two sides which are away from each other, and a bending part which makes the teeth of the two surfaces be in the same horizontal plane is bent in the middle part; the grounding pin is provided with two gears which are engaged with the teeth of the same side of the two racks, and the two non-grounding pins are provided with one gear which is engaged with the teeth of the other side of the corresponding rack.

[0013] Preferably, the first clamping groove and the clamping block which can be clamped and limited are arranged between the end of the grounding pin which is engaged with the rack and the second mounting rack. Advantageous effects

[0014] The utility model discloses have the beneficial effect that: the utility model does not need to assemble, convenient to carry and use, and simultaneously utilize the switch of setting to very convenient manual regulation the electric conduction of the plug to be used, can cut off the power supply in time under the abnormal condition, improve the use safety, and the switch is set on the shell, so that other elements (such as relay, transistor, intelligent chip, etc.) do not need to be set on the circuit to switch the energized condition of different plugs, simplify the setting of the circuit, and also reduce the cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a structural schematic diagram of the bottom surface of an embodiment of the present application;

[0016] Fig. 2 is a structural schematic diagram of the side surface of an embodiment of the present application;

[0017] Fig. 3 is a structural schematic diagram of an exploded view of an embodiment of the present application;

[0018] Fig. 4 is a structural schematic diagram of an embodiment of the present application with a circuit board installed inside the shell;

[0019] Fig. 5 is a structural schematic diagram of an embodiment of the present application without a circuit board installed inside the shell;

[0020] Fig. 6 is a structural schematic diagram of the bottom surface of an embodiment of the shell of the present application;

[0021] Fig. 7 is a structural schematic diagram of the connection between the European plug and the first mounting bracket of an embodiment of the present application;

[0022] Fig. 8 is a structural schematic diagram of the pressing portion of an embodiment of the present application;

[0023] Fig. 9 is a structural schematic diagram of the fixed portion of an embodiment of the present application in the first mounting bracket;

[0024] Fig. 10 is a structural schematic diagram of the connection between the American plug and the second mounting bracket of an embodiment of the present application;

[0025] Fig. 11 is a structural schematic diagram of the connection between the British plug and the second mounting bracket of an embodiment of the present application;

[0026] Fig. 12 is a structural schematic diagram of the connection between the British plug and the gear transmission mechanism of an embodiment of the present application;

[0027] Fig. 13 is a structural schematic diagram of the internal structure of the second mounting bracket of an embodiment of the present application in cooperation with the British plug;

[0028] Fig. 14 is a circuit schematic diagram of two single-pole, three-throw switches and three plugs of an embodiment of the present application;

[0029] Part names and serial numbers in the figure: 1 - shell 10 - containing cavity 100 - first through hole 11 - strip-shaped through hole 12 - partition 120 - first opening 13 - first elastic sheet 14 - positioning block 15a, 15b - first recess 150a, 150b - second through hole 151a, 151b - second mounting bracket 152a, 152b - second elastic sheet 153a, 153b - abutting piece 154 - V-shaped clamping groove 155a, 155b - abutting head 156 - clamping block 157 - second recess 2a, 2b, 2c - plug 20 - first mounting bracket 21 - first clamping piece 22 - ground pin 220 - first clamping groove 23 - non-ground pin 24 - gear transmission mechanism 240 - rack 241 - gear 242 - bending part 3 - circuit board 4 - switch 40 - switch body 41 - push button 5 - electrical connection interface 6 - sliding piece 60 - pressing part 61 - fixed part 62 - stop block 63 - clamping hook 64 - elastic piece. Embodiments of the present application

[0030] In order to more clearly illustrate the purpose, technical scheme and advantages of the embodiments of the present application, the present application will be further described below in conjunction with the drawings and embodiments, and a clear and complete description will be made. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In addition, the directions mentioned in the present application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", etc. are only for reference to the direction of the attached drawings. The directions used are for better and clearer illustration and understanding of the present application, and are not indicative or implied of the orientation that the present application must have, so it cannot be understood as a limitation on the present application.

[0031] The utility model discloses a charger with multiple specifications plug as shown in figures 1-6, a kind of including the shell 1 being provided with accommodating cavity 10 inside, multiple different specifications plug 2a,2b,2c, shell 1 can be constituted by bottom shell and upper cover, the accommodating cavity 10 in it is just used to install the other components of charger;Plug 2a,2b,2c can be existing different specifications plug, such as European plug 2a, American plug 2b British plug 2c, Chinese plug, Japanese plug etc., can select two or three according to need, circuit board 3 is installed in accommodating cavity, circuit board 3 just selects existing any one full voltage circuit board that can adapt to different specifications commercial power, such as circuit board with wide voltage power supply chip, plug 2a,2b,2c can be folded and set on shell 1 and / or limit sliding and set in accommodating cavity 10 and can from shell 1 pass out, at this time just according to different demand plug 2a,2b,2c with foldable mode set on shell 1, shell 1 is provided with the storage slot for storing plug 2a,2b,2c, when needing use, plug 1 is pulled out and unfolded from storage slot, when not needing use, it is folded and stored in the storage slot on shell 1, or plug 2a,2b,2c limit sliding and set in accommodating cavity 10, when needing use, sliding plug 2a,2b,2c makes it pass out shell 1, when not needing use, it is slid back in accommodating cavity 10 and stored, at this time shell 1 is provided with the through-hole for the plug 2a,2b,2c passing out.In practical application, the combination of the above two modes is preferred, for example, the EU plug 2a and the US plug 2b with two pins occupy a smaller area of the shell, and the sliding mode is used, while the UK plug 2c occupies a larger area of the shell 1, and the UK plug 2c is arranged on the shell 1 in a folded manner; the shell 1 is further provided with a switch 4 electrically connected with the circuit board 3 for adjusting the electrical conduction of the plugs 2a, 2b, 2c of different specifications with the circuit board 3, that is, each plug 2a, 2b, 2c is connected to the switch 4 and electrically connected to the circuit board 3 through the switch 4, the switch 4 can be provided with two switches to form a double-circuit switch, which ensures that the zero line and the live line are disconnected when the power is off, avoiding the risk of electric leakage when the circuit is disconnected, the switch 4 includes a switch body 40 arranged on the circuit board 3 and a push button 41 or a key installed on the shell 1 for controlling the electrical conduction or shutdown of the switch body 40, for example, when three types of plugs 2a, 2b, 2c are arranged, the switch 4 is a single-throw three-pole switch, when two types of plugs 2a, 2b, 2c are arranged, the switch 4 is a single-throw two-pole switch, preferably, three types of plugs 2a, 2b, 2c are arranged, at this time, the switch 4 is two single-throw three-pole switches and forms a double-circuit switch, and the different plugs 2a, 2b, 2c are selected as inputs by rotating the push button 41, as shown in FIG. 1, when the push button 41 is placed in the EU position, only the EU plug 2a can work, and the other two plugs 2b, 2c are not electrified and do not work, the push button 41 is connected to the two toggle switches, and the power-on or power-off of the two toggle switches is controlled by the push button 41, and the circuit principle is shown in FIG. 14; when a plug 2a, 2b, 2c of a certain specification is used, the switch 4 is manually adjusted to electrically connect the plug 2a, 2b, 2c of the specification with the circuit board 3, and the plugs 2a, 2b, 2c of other specifications are in an electrically disconnected state, so that the power supply can be manually cut off in time in the case of abnormal conditions, improving the safety in use; the switch 4 is arranged in this way, so that there is no need to set relays, transistors, intelligent chips and other electronic elements on the circuit to adjust the on-off of the circuit, simplifying the setting of the circuit and reducing the cost; the shell 1 is further provided with an electrical connection interface 5 electrically connected with the circuit board 3, and the electrical connection interface 5 is used to connect a load, such as a type-c interface and a USB A interface, and multiple interfaces can be set according to the situation.

[0032] Further improvement, as shown in Figure 6, the cavity wall of the accommodation cavity 10 is provided with a first through hole 100 which is in communication with the accommodation cavity 10, the first through hole 100 is arranged on the inner bottom surface of the cavity wall of the accommodation cavity 10, that is, the bottom surface of the shell 1, as shown in Figure 1, Figure 3 and Figure 4, the plug 2a is arranged in the accommodation cavity 10 along the axial direction of the first through hole 100 and can pass out of the first through hole 100, the axial direction of the first through hole 100 is the up-down direction, the plug 2a just slides up and down in the accommodation cavity corresponding to the position of the first through hole 100, when needed, it is positioned by sliding down and out of the first through hole 100, when not needed, it is positioned by sliding up and waiting to be completely retracted into the accommodation cavity 10, through limiting, it is avoided from falling out of the first through hole 100 or shaking in the accommodation cavity 10, the limiting structure can be the clamping block and the clamping groove which can be clamped with each other arranged on the plug 2a and the cavity wall of the shell 1, that is, the accommodation cavity 10; The shell 1 is provided with a strip-shaped through hole 11 extending along the axial direction of the first through hole 100, the strip-shaped through hole 11 is arranged on the shell 1 and extends along the up-down direction, it is arranged on the side wall of the shell 1 and is adjacent to the first through hole 100 on the bottom surface of the shell 1; A sliding member 6 is slidably arranged in the strip-shaped through hole 11, one end of the sliding member 6 is connected with the plug 2a and the other end is outside the shell 1, so that the sliding member 6 can be pushed to slide up and down in the strip-shaped through hole 11, thereby driving the plug 2a to slide up and down in the accommodation cavity 10, at this time, the limiting sliding of the plug 2a can also be the clamping block and the clamping groove which can be clamped with each other arranged between the sliding member 6 and the shell 1. In order to ensure the smooth sliding of the plug 2a in the accommodation cavity 10, a cylindrical structure of the partition plate 12 is arranged on the edge of the first through hole 100 along the axial direction of the first through hole 100, the axial line of the partition plate 12 is parallel to the axial line of the first through hole 100, the partition plate 12 surrounds the first through hole 100, and the inner ring of the partition plate 12 forms a channel for the plug 2a to slide up and down; The first opening 120 is arranged on the side of the partition plate 12 opposite to the strip-shaped through hole 11, the arrangement of the first opening 120 facilitates the connection between the sliding member 6 and the plug 2a; In order to facilitate the sliding of the plug 2a in the partition plate 12 and protect the plug 2a, a first mounting bracket 20 is arranged on the plug 2a, the plug 2a is limitedly and slidably arranged in the partition plate 12 through the first mounting bracket 20;The sliding member 6 is connected with the first mounting frame 20 in sequence through the strip-shaped through hole 11 and the first opening 120, that is, the plug 2a is mounted on the first mounting frame 20, then the first mounting frame 20 with the plug 2a is limited to slide in the partition plate 12, at this time, the guiding groove and the guiding column matched and engaged for guiding the sliding of the plug 2a can be arranged between the first mounting frame 20 and the partition plate 12. At the same time, since the plug 2a is arranged to slide in the accommodating cavity 10, that is, the plug 2a needs to be electrically connected and conducted with the circuit board 3 only when it passes through the first through hole 100, the first engaging member 21 and the first spring piece 13 capable of being engaged and electrically conducted with each other are arranged on the plug 2a and the cavity wall of the accommodating cavity 10, that is, the first engaging member 21 or the first spring piece 13 is arranged on the upper portion of the plug 2a, then the first spring piece 13 or the first engaging member 21 electrically connected with the switch 4 is arranged on the cavity wall of the inner bottom surface of the accommodating cavity 10, that is, arranged on the same surface with the first through hole 100, so that after the plug 2a slides downward and passes through the first through hole 100, the first engaging member 21 or the first spring piece 13 on the plug 2a is engaged with the first spring piece 13 or the first engaging member 21 in the accommodating cavity 10 to realize the electrical connection between the plug 2a and the switch 4; when not in use, the plug 2a can also ensure that it is in a disconnected state, and there is no risk of electric shock when touching it; when the plug 2a is mounted on the first mounting frame 20, the first engaging member 21 or the first spring piece 13 on the plug 2a is protruded out of the first mounting frame 20, the first spring piece 13 or the first engaging member 21 on the cavity wall of the accommodating cavity 10 is located outside the partition plate 12, and the avoiding notch avoiding the first engaging member 21 or the first spring piece 13 on the plug 2a is arranged on the partition plate 12. For the limiting structure of the plug 2a sliding in the partition plate 12, the positioning block 14 for positioning the sliding member 6 is arranged on the inner wall of the shell 1 at the position corresponding to the first opening 120, the positioning block 14 is arranged along the up-down direction, the upper end of the positioning block 14 is spaced apart from the top cover of the shell 1 by a distance and forms a clamping groove, the surface of the upper portion of the positioning block 14 towards the center of the partition plate 12 is provided with a guiding slope, the lower end of the positioning block 14 is also spaced apart from the inner bottom surface of the shell 1 by a distance and forms another clamping groove, and the surface of the lower portion of the positioning block 14 towards the center of the partition plate 12 is also provided with a guiding slope, at this time, the positioning block 14 can be a long strip-shaped positioning rod arranged along the up-down direction, and two positioning rods can be arranged in parallel and spaced apart; in this way, the sliding member 6 drives the plug 2a to slide upward through the upper guiding slope, the sliding member 6 is then positioned in the clamping groove between the positioning block 14 and the top cover, thereby positioning the sliding member 6 and further positioning the plug 2a, and similarly, the sliding member 6 drives the plug 2a to slide downward through the lower guiding slope, the sliding member 6 is then positioned in the clamping groove between the positioning block 14 and the inner bottom surface of the shell 1 to position the sliding member 6.In order to facilitate the operation of the sliding member 6, as shown in Figures 7 to 9, the sliding member 6 comprises a press part 60 in the shape of an I-beam which can be sleeved on the two long sides of the strip-shaped through hole 11, a fixed part 61 fixedly connected to the plug 2a, and the press part 60 is elastically arranged on the fixed part 61; the press part 60 is in the shape of an I-beam, which means that two clamping grooves are formed on the two sides of the press part 60, and the two long sides of the strip-shaped through hole 11 are correspondingly clamped into the two clamping grooves on the two sides of the press part 60, so that the press part 60 is sleeved on the two long sides of the strip-shaped through hole 11, and the press part 60 can move up and down along the strip-shaped through hole 11; when the press part 60 is installed, the top cover of the shell 1 is first opened, the strip-shaped through hole 11 becomes a U-shaped through hole with an open upper end, and then the press part 60 is sleeved; the fixed part 61 is fixedly connected to the first mounting frame 20 when the plug 2a is installed on the first mounting frame 20, a sliding groove facing the first opening 120 is arranged on the fixed part 61, a stop block 62 is extended on the two side walls of the sliding groove, and an elastic member 64 such as an elastic plunger is arranged on the groove bottom; the elastic clamping hook 63 extended in the sliding groove and clamped into the stop block is arranged on the press part 60, the clamping hook 63 is formed by an extension arm extended from one side of the press part 60 facing the center of the partition plate 12 and a bending portion bent outward from the end of the extension arm away from the press part 60, and the clamping hook 63 has some elasticity relative to the press part 60; when the press part 60 is pressed into the shell 1, the clamping hook 63 moves in the sliding groove and deforms to pass the stop block 62 when it encounters the stop block 62, and then the clamping hook 63 is clamped on the stop block 62 after the pressure is removed; in this way, when the press part 60 is not pressed, the elastic member 64 presses against the surface of the press part 60 facing the first mounting frame 20, the press part 60 presses against the side of the strip-shaped through hole 11, and the clamping hook 63 is clamped on the surface of the stop block 62 away from the press part 60, so that the press part 60 is fixed; then the press part 60 is pressed, the press part 60 is separated from the side wall of the strip-shaped through hole 11, the clamping hook 63 is separated from the stop block 62, and the elastic member 64 is compressed; at this time, the sliding member 6 can be adjusted up and down, the position of the sliding member 6 is limited after the adjustment is completed, and the position of the plug 2a is also limited.

[0033] In practical application, the first through hole 100 is arranged at the left side of the bottom of the shell 1, the strip-shaped through hole 11 is arranged on the left side wall of the shell 1, the plug 2a is selected as a European plug with two pins, the two pins are arranged on the bottom of the first mounting frame 20, two protrusions are arranged on the top of the first mounting frame 20, the four protrusions form four vertices of a rectangle, a clamping groove is arranged on each protrusion, the clamping groove is open to the outside of the first mounting frame 20 and the axial line is in the up-down direction, that is, the clamping groove is in the up-down direction, the tail of the two pins is provided with a first clamping piece 21, the first clamping piece 21 is welded or threadedly connected on the pin, the first clamping piece 21 extends radially from the top of the first mounting frame 20 to the right, the fixed part 61 of the sliding piece 6 is arranged on the left side of the top of the first mounting frame 20, the fixed part 61 is integrally formed with the first mounting frame 20, the sliding groove is in the left-right direction, the sliding groove is arranged on the left side wall of the fixed part 61, the stop block 62 is arranged on the left side of the front and rear side walls of the sliding groove, and the clamping hook 63 is formed by two extension arms extending on the right side surface of the pressing part 60 and bending outward at the right end of the extension arm; At this time, the avoiding notch is arranged on the right side wall of the partition plate 12 to avoid the first clamping piece 21, the first elastic sheet 13 is arranged on the cavity wall of the bottom of the accommodating cavity 10, the first elastic sheet 13 is arranged outside the right side of the partition plate 12, the two side edges of the first opening 120 are clamped in the clamping grooves on the two protrusions on the left side of the partition plate 12, at this time, the connecting arm connected to the inner side wall of the shell 1 can be extended from the position adjacent to the first opening 120 on the left side of the partition plate 12 to enhance the strength of the partition plate 12; An opening is also arranged on the right side wall of the partition plate 12, the two side edges of the opening are clamped in the clamping grooves on the two protrusions on the right side of the partition plate 12, and the n-shaped protrusion is extended from the position corresponding to the opening on the right side of the partition plate 12 to protect the plug 2a.

[0034] Further improvement, as shown in FIG. 1, FIG. 5 and FIG. 6, the outer surface of the shell 1 is provided with a first recess 15a, 15b, the first recess 15a, 15b is arranged on the bottom surface of the shell 1, that is, the bottom surface of the bottom shell 1, the first recess 15a, 15b and the first through hole 100 are arranged on the bottom surface of the shell 1, the cavity wall of the accommodating cavity 10 is provided with a second through hole 150a, 150b communicated with the first recess 15a, 15b, that is, the second through hole 150a, 150b is arranged on the groove bottom or groove wall of the first recess 15a, 15b, the second mounting frame 151a, 151b is installed in the accommodating cavity 10, the second mounting frame 151a, 151b is arranged on the back of the first recess 15a, 15b, the plug 2b, 2c is reversely arranged in the first recess 15a, 15b, the second mounting frame 151a, 151b is provided with a second spring 152a, 152b communicated with the circuit board 3, one end of the plug 2b, 2c passes through the second through hole 150a, 150b and abuts against the second spring 152a, 152b, the plug 2b selects a plug with two pins, such as American plug, as shown in FIG. 3 and FIG. 10, two pins are connected to both ends of a rotating shaft, at this time, two first recesses 15a can be arranged, the rotating shaft is installed on the second mounting frame 151a in the accommodating cavity 10, then the end of the pin away from the rotating shaft passes out from the second through hole 150a and reverses in the first recess 15a, meanwhile, two second springs 152a respectively connected with the circuit board 3 are arranged on the second mounting frame 151a corresponding to the position of the two pins, and the two second springs 152a abut against the two pins on the side corresponding to the rotating shaft, the two second springs 152a are electrically connected with the circuit board 3 through the switch 4.In order to keep the stability of the plug pins after being turned out of the first groove 15a during use, the second elastic sheet 152a extends a contact piece 153a which contacts the plug 2b and forms a V-shaped structure with the second elastic sheet 152a. The connection between the contact piece 153a and the second elastic sheet 152a is provided with a V-shaped clamping groove 154 which protrudes outward. The second elastic sheet 152a is horizontally arranged, and then the contact piece 154 extends downward and leftward at the left side of the second elastic sheet 152a. Meanwhile, the V-shaped clamping groove 154 extends upward at the position of the second elastic sheet 152a where the contact piece 153a is connected, and the top corner of the V-shaped clamping groove 154 is arranged as a rounded corner. The plug 2b is provided with a pressing head 155a which contacts the contact piece 153a and can be clamped in the V-shaped clamping groove 154. The pressing head 155a is arranged as a spherical or cam-shaped structure and extends on each pin of the plug 2b. When not in use, the pins of the plug 2b are in a horizontal state in the first groove 15a, and the pressing head 155a presses on the contact piece 153a. When the plug 2b is needed, the pins are turned out of the first groove 15a to be in a vertical state, and the pressing head 155a is turned to be clamped in the V-shaped clamping groove 154 to fix the state of the plug 2b, which is convenient for use. The first groove 15a can be arranged as one groove which can accommodate all the pins of the plug 2b, or as multiple first grooves 15a which are equal in number to the pins of the plug 2b. Then one first groove 15a corresponds to one pin, and preferably one pin corresponds to one first groove 15a. This structure is used for the plug 2b which has two pins or the plug (Italian plug) which has three pins arranged in a row on the same side. In actual use, the plug 2b is preferably an American plug, and the first groove 15a is arranged at the right side of the first through hole 100 and arranged in two in front and back. The first groove 15a is concave in the bottom surface of the shell 1. Each first groove 15a is provided with a second through hole 150a which is arranged at the left side of the groove wall and groove bottom of the first groove 15a. Each second through hole 150a is also provided with a second elastic sheet 152a in the left-right direction, and the rotating shaft is installed on the second mounting frame 151a in the front-rear direction. The front and rear ends of the rotating shaft correspond to the second through holes 150a of the front and rear first grooves 15a. The pins of the plug 2b are connected to the rotating shaft at the second through holes 150a, and the contact piece 153a contacts the left end of the pin.

[0035] For the plug 2c with three pins and three pins in the shape of an upright triangle, such as a British plug, as shown in Figs. 11 to 13, in order to facilitate use, a first recess 15b is provided for each pin, and a second through hole 150b is provided for each first recess 15b; an abutting member 153b abutting against the plug 2c and forming a V-shaped structure with the second resilient sheet 152b extends from the second resilient sheet 152b; unlike the previous case, the abutting member 153b and the second resilient sheet 152b are not connected by a V-shaped clamping slot; the plug 2c has one ground pin 22 and two non-ground pins 23, the non-ground pins 23 being a live pin and a neutral pin, and the ground pin 22 being a ground pin; a gear transmission mechanism 24 is provided on the second mounting frame 151b, and the ground pin 22 and the two non-ground pins 23 are drivingly connected by the gear transmission mechanism 24; the non-ground pins 23 abut against the second resilient sheet 152b, and the rotation of the gear transmission mechanism 24 is driven by the flipping of the ground pin 22, thereby driving the flipping of the two non-ground pins 23, so that the plug 2c can be conveniently flipped out of the first recess 15b when needed.

[0036] For the gear transmission mechanism, as shown in FIG. 11 to FIG. 13, the gear transmission mechanism 24 comprises two parallel and spaced apart racks 240, and a plurality of gears 241 engaged with the racks 240; each rack 240 is provided with teeth on the surfaces facing away from each other, and a bending portion 242 is bent in the middle to make the teeth of the two surfaces at the same level; the ground pin 22 is provided with two gears 241 corresponding to the teeth on the same side of the two racks 240, and the two non-ground pins 23 are provided with one gear 241 corresponding to the teeth on the other side of the corresponding rack 240. In practical application, corresponding to the inch plug, the rack 240 is in a right angle Z type structure, the left bottom surface of the rack 240 is provided with teeth, and the right top surface is provided with teeth, the two racks 240 are arranged in front of and behind the two non-ground pins 23 in parallel, and then one gear 241 is arranged on the front and rear surfaces of the right end of the ground pin 22, the axis of the gear 241 is perpendicular to the surface of the ground pin 22, the front and rear gears 241 on the ground pin 22 are correspondingly engaged with the teeth on the right side of the front and rear racks 240, and one gear 241 is arranged on each of the two non-ground pins 23, which is engaged with the teeth on the left side of the corresponding rack 240; when not in use, the ground pin 22 and the non-ground pin 23 are in the first recess 15b respectively, when in use, the left end of the ground pin 22 is pinched and turned to the right, at this time the gear 241 on the ground pin 22 drives the rack 240 to move to the right, and the movement of the rack 240 to the right drives the non-ground pin 23 to turn to the left, thereby unfolding all the pins, which is more convenient to use. In order to position the unfolded pins, the ground pin 22 is provided with a first clamping groove 220 and a clamping block 156 between the end engaged with the rack 240 and the second mounting frame 151b, that is, the right end of the ground pin 22 and the second mounting frame 151b are provided with a first clamping groove 220 and a clamping block 156 that can be clamped together, the first clamping groove 220 is arranged at the top end of the ground pin 22 after being unfolded from the first recess 15b, and the first clamping groove 220 is an arc-shaped clamping groove, and the clamping block 156 is arranged on the second mounting frame 151b at a position corresponding to the top end of the ground pin 22 after unfolding, the clamping block 156 is matched with the first clamping groove 220, the unfolded pins of the plug 2c are fixed by clamping the first clamping groove 220 and the clamping block 156, and a first clamping groove 220 is also arranged at a position forming a 90 degree angle with the first clamping groove 220 at the top end of the ground pin 22 after unfolding, which faces to the left, so that in the state that the plug 2c is not in use, the first clamping groove 220 and the clamping block 156 are in clamping state, maintaining the structural stability in the storage state.In practical application, the corresponding structure is adopted, the European plug is slidably arranged from left to right on the bottom surface of the shell 1, the American plug and the British plug are foldably arranged, meanwhile, a second recess 157 is arranged between the first recesses 15a and 15b for arranging the American plug and the British plug, the second recess 157 is communicated with the first recesses 15a and 15b and has a depth greater than that of the first recesses 15a and 15b, so that the right ends of the two pins of the American plug and the left end of the grounding pin 22 of the British plug are located in the second recess 157, facilitating pulling and turning and unfolding the plugs 2b and 2c.

[0037] Although the utility model has been described in detail above with general description and specific implementation, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model belong to the scope of protection required by the utility model.

Claims

1. A charger with multiple plug specifications, characterized in that: The device includes a housing with an internal cavity, multiple plugs of different specifications, a circuit board installed inside the cavity, and plugs that can be folded onto the housing and / or slidably positioned within the cavity and can pass through the housing. The housing is also equipped with a switch electrically connected to the circuit board for adjusting the electrical connection between the plugs of different specifications and the circuit board. The housing is also equipped with an electrical connection interface electrically connected to the circuit board.

2. The charger with multiple plug specifications according to claim 1, characterized in that... The cavity wall of the accommodating cavity is provided with a first through hole that communicates with the accommodating cavity. The plug is slidably disposed in the accommodating cavity along the axis of the first through hole and can pass through the first through hole. The housing is provided with a strip-shaped through hole that extends along the axis of the first through hole. A sliding member with one end connected to the plug and the other end located on the outside of the housing is slidably disposed in the strip-shaped through hole.

3. The charger with multiple plug specifications according to claim 2, characterized in that... The cavity wall of the accommodating cavity is provided with a cylindrical partition with its axis parallel to the axis of the first through hole along the edge of the first through hole; the partition has a first opening on the side opposite to the strip-shaped through hole, and the plug is slidably disposed in the partition by the first mounting bracket; the sliding member passes through the strip-shaped through hole and the first opening in sequence and is connected to the first mounting bracket.

4. The charger with multiple plug specifications according to claim 2, characterized in that... The plug and the cavity wall of the receiving cavity are provided with a first engaging member and a first spring piece that can engage with each other and conduct electricity.

5. The charger with multiple plug specifications according to claim 3, characterized in that... The inner wall of the housing is provided with a positioning block for positioning the sliding member at the position corresponding to the first opening; the sliding member includes an I-shaped pressing part that can be fitted onto the two long sides of the strip-shaped through hole and a fixing part that is fixedly connected to the plug, and the pressing part can be elastically extended and retracted on the fixing part.

6. The charger with multiple plug specifications according to claim 1, characterized in that... The outer surface of the housing is provided with a first groove, the cavity wall of the accommodating cavity is provided with a second through hole communicating with the first groove, a second mounting bracket is installed in the accommodating cavity, the plug is limited and flipped in the first groove, the second mounting bracket is provided with a second spring contact electrically communicating with the circuit board, and one end of the plug passes through the second through hole and abuts against the second spring contact.

7. The charger with multiple plug specifications according to claim 6, characterized in that... The second spring has an abutting member that abuts against the plug and forms a V-shaped structure with the second spring. The connection between the abutting member and the second spring has a protruding V-shaped groove. The plug has a pressing head that abuts against the abutting member and can be engaged in the V-shaped groove.

8. The charger with multiple plug specifications according to claim 6, characterized in that... The second spring extends with a contact member that abuts against the plug and forms a V-shaped structure with the second spring; the plug is a plug with one grounding pin and two non-grounding pins; the second mounting bracket is provided with a gear transmission mechanism, and the grounding pin and the two non-grounding pins are connected by the gear transmission mechanism; the non-grounding pin abuts against the second spring.

9. The charger with multiple plug specifications according to claim 8, characterized in that... The gear transmission mechanism includes two racks arranged side by side at intervals and a plurality of gears meshing with the racks; each rack has teeth on two opposing surfaces and a bend in the middle to bring the teeth on the two surfaces to the same horizontal plane; the grounding pin is provided with two gears that mesh with the teeth on the same side of the two racks, and the two non-grounding pins are provided with one gear that meshes with the teeth on the other side of the corresponding rack.

10. The charger with multiple plug specifications according to claim 9, characterized in that... The grounding pin has a first slot and a locking block that can engage and limit the movement between the end that meshes with the rack and the second mounting bracket.

Images