CN114552266B - Electric shock prevention power adapter - Google Patents
Electric shock prevention power adapter Download PDFInfo
- Publication number
- CN114552266B CN114552266B CN202210447530.5A CN202210447530A CN114552266B CN 114552266 B CN114552266 B CN 114552266B CN 202210447530 A CN202210447530 A CN 202210447530A CN 114552266 B CN114552266 B CN 114552266B
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- pin
- shell
- power adapter
- housing
- base
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/44—Means for preventing access to live contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/60—Means for supporting coupling part when not engaged
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses an electric shock prevention power adapter which comprises a shell, a pin assembly and a driving assembly, wherein the shell is provided with a head end, the end surface of the head end is provided with two pilot positioning pins, the two pilot positioning pins can be inserted into jacks of a power socket and open a safety door in the jacks, and each pilot positioning pin is provided with a through hole; the pin assembly comprises a base and two pins arranged on the base, and the base is slidably arranged in the shell; the driving assembly is arranged on the shell and is operated by a user to drive the pin assembly to switch between the retracted position and the extended position; when the pin assembly is located at the retraction position, the pin is hidden in the shell, when the two pilot positioning pins are inserted into the jacks of the power socket, the pin assembly is switched from the retraction position to the extension position, and the pin extends from the through holes of the pilot positioning pins and is inserted into the jacks of the power socket. The electric shock prevention power adapter basically eliminates the electric shock risk in plugging.
Description
Technical Field
The invention relates to a power adapter, in particular to an electric shock prevention power adapter.
Background
The Power adapter is a Power supply conversion device for small portable electronic equipment and electronic appliances, generally composed of a shell, a transformer, an inductor, a capacitor, a control IC, a PCB and other components, and its working principle is that AC input is converted into DC output, and it can be divided into wall-plugging type and desktop type according to the connection mode.
In the related art, for the wall-mounted power adapter, when the plug pins of the power adapter are inserted into the insertion holes of the power socket, there is a risk of electric shock, and particularly, when children use the wall-mounted power adapter, the plug pins may be touched by fingers to cause electric shock accidents.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide an electric shock prevention power adapter.
In order to achieve the above object, an electric shock preventing power adapter according to an embodiment of the present invention includes:
the shell is provided with a head end, the end face of the head end is provided with two pilot positioning pins, the distance between the two pilot positioning pins is equal to the distance between two jacks on a power socket, so that the two pilot positioning pins can be inserted into the jacks of the power socket and open a safety door in the jacks, and each pilot positioning pin is provided with a through hole;
the base is slidably arranged in the shell, and the two pins correspond to the through holes in the two pilot positioning pins one by one;
the driving assembly is arranged on the shell and is operated by a user to drive the pin assembly to switch between the retracted position and the extended position; when the pin assembly is located at the retraction position, the pin is hidden in the shell, when the two pilot positioning pins are inserted into the jacks of the power socket, the pin assembly is switched from the retraction position to the extension position, and the pin extends out of the through holes of the pilot positioning pins and is inserted into the jacks of the power socket.
According to the anti-electric shock power adapter provided by the embodiment of the invention, the head end of the shell is provided with the pilot positioning pin, the pin assembly can be switched between the withdrawing position and the extending position under the driving of the driving assembly, when in use, the pin assembly is in the withdrawing position, firstly, the pin assembly is inserted into the jack of the power socket through the pilot positioning pin, the safety door in the jack is opened by using the pilot positioning pin, then, the driving assembly is used for pushing the pin assembly from the withdrawing position to the extending position, then, the pin extends out of the through hole of the pilot positioning pin and is inserted into the jack of the power socket, so that the electric connection is realized, in the process, as the pin is not exposed, the electric shock risk in the plugging process is basically eliminated, and the operation of firstly inserting the pilot positioning pin and then driving the pin assembly to be switched to the extending position through the driving assembly increases the difficulty of the use operation of children, the risk of electrocution of children is also indirectly reduced.
In addition, the electric shock prevention power adapter according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the drive assembly comprises:
the pushing piece is arranged on the shell in a sliding mode and abuts against the base in the shell so as to push the base to move;
a first resilient member disposed between the base and the housing for providing a first resilient force urging the base from the extended position to the retracted position.
According to an embodiment of the present invention, further comprising:
a locking member disposed on the housing for selectively locking the push member and the housing in place to enable the prong assembly to remain in the extended position.
According to an embodiment of the present invention, the housing further includes a tail end opposite to the head end, and a hollow is disposed on the tail end;
the pushing piece is provided with a connecting end, an operating end and a shoulder which is positioned between the operating end and the connecting end, the connecting end is positioned in the shell and is abutted against the base, the operating end is slidably arranged in the hollowed-out opening in a penetrating way, and the shoulder is positioned in the shell;
when the pin assembly is located at the retraction position, the retaining shoulder is abutted against the inner wall of the tail end, and the operating end protrudes outwards from the tail end; when the pin assembly is switched from the retracted position to the extended position, the blocking shoulder is far away from the inner wall of the tail end, the end surface of the operating end is approximately flush with the end surface of the tail end, and the pushing piece and the shell are locked and fixed by the locking piece.
According to one embodiment of the present invention, the lock member includes:
the tail end of the sliding lock catch is provided with a sliding groove communicated with the hollow opening, and the sliding lock catch is slidably arranged in the sliding groove;
the second elastic piece is arranged between the sliding lock catch and the tail end and used for providing a second elastic acting force for forcing the sliding lock catch to move towards the direction of the hollow opening;
the operating end is provided with a bayonet, and when the pushing piece pushes the pin assembly to be switched to the extending position, the bayonet is opposite to the lock catch and is clamped, so that the pushing piece and the shell are locked and fixed.
According to one embodiment of the invention, the housing comprises:
a cartridge case having both ends open;
a first end cap connected to one end of the cartridge housing;
a second end cap connected to the other end of the cartridge housing;
the pilot positioning foot is arranged on the outer side face of the first end cover, and the hollow opening is formed in the second end cover and penetrates through the second end cover.
According to one embodiment of the present invention, two opposite side walls of the housing are provided with guide grooves extending along the sliding direction of the pin assembly, and two sides of the base are respectively provided with sliding portions slidably engaged with the guide grooves.
According to one embodiment of the present invention, the first end cap has two guide rods thereon, the two guide rods extending in the axial direction of the cartridge case inside the cartridge case;
the first elastic piece comprises two first springs, the two first springs are respectively sleeved on the two guide rods, one end of each first spring is abutted to the first end cover, and the other end of each first spring is abutted to the base.
According to an embodiment of the present invention, the pilot positioning pin is made of an insulating material, and the length of the pilot positioning pin is less than one half of the length of the pin.
According to one embodiment of the invention, an electrode holder and a circuit board are further arranged in the shell, two electrode elements are arranged on the electrode holder, and the electrode elements are electrically connected with the circuit board; one end of the pin, which is kept in the shell, is provided with a conductive part corresponding to the two electrode elements; when the pushing piece pushes the pin assembly to be switched to the extending position, the two conducting parts of the pin are electrically contacted with the two electrode pieces on the electrode seat.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a perspective view of a power adapter with a pin assembly in an extended position according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another view of the electrical shock protection power adapter (with the pin assembly in an extended position) according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a shock resistant power adapter (with the pin assembly in an extended position) according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a perspective view of a power adapter with a retracted pin assembly according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an alternate view of the electrical shock protection power adapter (with the pin assembly in the retracted position) in accordance with the present invention;
FIG. 6 is an exploded view of a perspective view of an anti-shock power adapter according to an embodiment of the present invention;
fig. 7 is an exploded view of another perspective of the anti-shock power adapter according to the embodiment of the invention.
Reference numerals:
10. a housing;
101. a cartridge housing;
102. a first end cap;
1021. a pilot positioning pin;
1022. a guide bar;
h102, a through hole;
103. a second end cap;
1031. a USB interface;
h103a, a hollow opening;
h103b, a chute;
11. a circuit board;
12. an electrode holder;
121. an electrode member;
20. a pin assembly;
201. a base;
2011. a sliding part;
202. a pin;
2021. a conductive portion;
30. a pusher member;
301. an operation end;
302. a connecting end;
303. a shoulder block;
h30, bayonet;
31. a first elastic member;
40. and (4) sliding the lock catch.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Hereinafter, an electric shock preventing power adapter according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 7, an electric shock protection power adapter according to an embodiment of the present invention includes a housing 10, a pin assembly 20, and a driving assembly.
Specifically, the housing 10 has a head end, two pilot positioning pins 1021 are arranged on an end face of the head end, a distance between the two pilot positioning pins 1021 is equal to a distance between two insertion holes on the power socket, so that the two pilot positioning pins 1021 can be inserted into the insertion holes of the power socket and open the safety door in the insertion holes, and each pilot positioning pin 1021 is provided with a through hole H102. Preferably, the guiding positioning leg 1021 is made of the same plastic material as the housing 10, and is integrally formed by injection molding or other processes, so that it has higher strength, and is conveniently inserted into the insertion hole of the power socket to force the safety door to open.
The pin assembly 20 includes a base 201 and two pins 202 mounted on the base 201, the base 201 is slidably disposed in the housing 10, and the two pins 202 correspond to the through holes H102 on the two pilot positioning pins 1021 one by one. The base 201 is a plastic part, two pins 202 are fixed on the plastic part, and the base 201 can slide in the housing 10 to extend from the through holes H102 of the guiding pins 1021.
A driving assembly is arranged on the shell 10 for being operated by a user to drive the pin assembly 20 to switch between the retracted position and the extended position; when the pin assembly 20 is located at the retracted position, the pin 202 is hidden in the housing 10, and when the two pilot positioning pins 1021 are inserted into the insertion holes of the power socket, the pin assembly 20 is switched from the retracted position to the extended position, and the pin 202 is extended from the through hole H102 of the pilot positioning pin 1021 and inserted into the insertion holes of the power socket.
That is, the driving assembly is disposed on the housing 10 for user operation, for example, the user pushes the driving assembly, the driving assembly further drives the pin assembly 20, so as to switch the pin assembly 20 between the retracted position and the extended position, and the pin 202 can be extended from the through hole H102 of the leading positioning pin 1021 or retracted from the outside of the leading positioning pin 1021 into the housing 10.
It should be noted that, in the related art, the pins 202 of the power adapter are mostly fixed on the adapter housing 10, and the structure is simple, but when the power adapter is plugged, the pins 202 are easily touched by fingers, which may cause an electric shock risk, especially for children. The pins 202 of a few power adapters are designed to be movable or retractable, but the pins 202 are used for convenient storage, and when the power adapters are used, the pins 202 still need to be unfolded or extended and then the pins 202 are directly inserted into the jacks, and similarly, the risk of electric shock exists in plugging.
According to the anti-electric shock power adapter provided by the embodiment of the invention, the leading positioning pin 1021 is arranged at the head end of the shell 10, the pin assembly 20 can be switched between the retracting position and the extending position under the driving of the driving assembly, when in use, the pin assembly 20 is in the retracting position, firstly, the leading positioning pin 1021 is inserted into the jack of the power socket, the safety door in the jack is opened by using the leading positioning pin 1021, then, the driving assembly is used for pushing the pin assembly 20 from the retracting position to the extending position, the pin 202 extends out of the through hole H102 of the leading positioning pin 1021 and is inserted into the jack of the power socket to realize electric connection, in the process, as the pin 202 is not exposed, the electric shock risk in insertion is basically eliminated, and the operation of firstly inserting the leading positioning pin 1021 and then driving the pin assembly 20 to be switched to the extending position by the driving assembly increases the difficulty of using and operating for children, thus, the risk of electrocution of the child is also indirectly reduced.
In an embodiment of the present invention, the driving assembly includes a pushing member 30 and a first elastic member 31, wherein the pushing member 30 is slidably disposed on the housing 10, and the pushing member 30 abuts against the base 201 in the housing 10 to push the base 201 to move. The first elastic member 31 is disposed between the base 201 and the housing 10 to provide a first elastic force for forcing the base 201 to move from the extended position to the retracted position.
In this embodiment, the driving assembly mainly includes a pushing member 30 and a first elastic member 31, the pushing member 30 can slide on the casing 10, for example, at least a portion of the pushing member 30 is located on the surface of the casing 10, so that the user can operate the pushing member 30, and another portion of the pushing member 30 extends into the casing 10 to be connected with or abut against the base 201, when the user operates the pushing member 30, the pushing member 30 slides to push the base 201 to slide in the casing 10 to a side near the head end, so that the pin 202 on the base 201 can extend out of the pilot positioning pin 1021. In addition, the first elastic element 31 is arranged between the base 201 and the shell 10, when the base 201 slides to the side close to the head end, the first elastic element 31 is compressed, and when no external force is inserted, the pin 202 can be kept at the retraction position under the action of the first elastic element 31, so that the pin 202 can be ensured to be at the retraction position under the non-use state, the operation is convenient for a user, and manual reset is not needed.
In some embodiments of the present invention, a locking member is provided on the housing 10 for selectively locking the pushing member 30 relative to the housing to retain the prong assembly 20 in the extended position.
That is to say, in this embodiment, by providing the locking member, the pushing member 30 and the housing can be locked and fixed by the locking member, so as to ensure that the pin assembly 20 can be kept at the extended position, and further ensure that the pin 202 is more reliably inserted into the jack, and will not exit from the jack due to the elastic force of the first elastic member 31. Of course, when the power adapter needs to be removed, the pins 202 of the power adapter can be pulled out of the insertion holes, and the locking member is operated to unlock, so that the pushing member 30 is released by the locking member, and the elastic force of the first elastic member 31 forces the pin assembly 20 to return to the recovery position.
In an embodiment of the present invention, the housing 10 further includes a tail end opposite to the head end, and the tail end is provided with a hollow H103 a.
The pushing element 30 has a connecting end 302, an operating end 301 and a shoulder 303 located between the operating end 301 and the connecting end 302, the connecting end 302 is located in the casing 10 and abuts against the base 201, the operating end 301 is slidably inserted into the hollow opening H103a, and the shoulder 303 is located in the casing 10.
When the pin assembly 20 is in the retracted position, the shoulder 303 abuts against the inner wall of the tail end, and the operating end 301 protrudes outwards from the tail end; when the prong assembly 20 is switched from the retracted position to the extended position, the shoulder 303 is away from the inner wall of the tail end, the end surface of the operating end 301 is substantially flush with the end surface of the tail end, and the locking member locks the pushing member 30 to the housing 10.
That is, the connecting end 302 of the pushing element 30 is located in the casing 10 and abuts against the base 201, the operating end 301 of the pushing element 30 is inserted into the hollow-out opening H103a and is partially exposed out of the tail end of the casing 10, and the retaining shoulder 303 of the pushing element 30 is located in the casing 10 for defining the retracted position. In use, the operating end 301 of the pushing member 30 can be pressed to move the pushing member 30 toward the inside of the casing 10, and accordingly, the base 201 can move toward the head end, and the pins on the base 201 can protrude from the through holes H102 of the pilot positioning pins 1021.
In this embodiment, the pushing element 30 with the above structure is adopted, and the tail end of the operating end 301 of the pushing element 30 is arranged, so that the whole sealing performance of the casing 10 can be maintained, and in addition, the operation of the operating end 301 by a user is facilitated, the use is convenient, and the structure is reliable.
For example, the tail end may be provided with a USB interface 1031 for connecting a USB data line, so as to facilitate connection with an electrical device and supply power to the electrical device. Of course, the tail end can also be directly connected with a power line, and then connected to the electric equipment through the power line.
In an embodiment of the present invention, the locking member includes a sliding lock 40 and a second elastic member, a sliding groove H103b is provided at a tail end of the sliding lock, and the sliding lock 40 is slidably disposed in the sliding groove H103b, and the hollow opening H103a is communicated with the sliding groove H103.
A second elastic member is disposed between the sliding lock 40 and the tail end to provide a second elastic force for forcing the sliding lock 40 to move toward the opening H103 a. The second elastic element may be a second spring, and may be installed in the sliding slot H103b or other positions, for example, in the sliding slot H103b, and one end of the second elastic element abuts against the side wall of the sliding slot H103b, and the other end abuts against the sliding lock 40.
The operating end 301 is provided with a bayonet H30, and when the pushing member 30 pushes the pin assembly 20 to switch to the extended position, the bayonet H30 is opposite to the lock catch and is locked to fix the pushing member 30 and the housing 10.
That is, the locking member mainly comprises the sliding lock 40 and the second elastic member, the sliding lock 40 is slidably disposed in the sliding groove H103b on one side of the hollow-out opening H103a, and the second elastic member provides an elastic force to ensure that the sliding lock 40 is kept close to the hollow-out opening H103 a. Since the opening H103a is operatively provided with the bayonet H30, as long as the bayonet H30 of the operating end 301 is aligned with the position of the sliding lock 40, the elastic force forces the sliding lock 40 to be inserted into the bayonet H30, so as to lock and fix the pushing element 30 and the housing 10, and correspondingly, the pin assembly can be kept at the extended position. When the pin assembly 20 needs to be restored to the retracted position, after the pin 202 is pulled out of the insertion hole of the power socket, the sliding latch 40 is simply slid in a direction away from the hollow-out portion H103a, the sliding latch 40 is withdrawn from the bayonet H30, and the pin assembly 20 is forced to be restored to the retracted position under the second elastic force of the second elastic member.
In this embodiment, adopt above-mentioned locking piece structure, utilize the slip of slip hasp 40 to realize with bayonet socket H30 between the switching of locking or unblock, the person of facilitating the use operates, simultaneously, the slip switching of slip hasp 40 is reliable stable, the locking is firm during the locking.
In one embodiment of the present invention, the housing 10 includes a cartridge case 101, a first end cap 102, and a second end cap 103, both ends of the cartridge case 101 being open; a first end cover 102 is connected to one end of the cartridge case 101; the second end cover 103 is connected to the other end of the cartridge case 101; the leading positioning leg 1021 is arranged on the outer side surface of the first end cover 102, and the hollow-out opening H103a is arranged on the second end cover 103 and penetrates through the second end cover 103.
In this embodiment, the housing 10 is composed of the cylindrical shell 101, the first end cap 102 and the second end cap 103, and by using this design, the pin assembly 20, the driving assembly and the housing 10 are conveniently assembled, and meanwhile, the production and the processing are also convenient.
Advantageously, two opposite side walls of the housing 10 are provided with guide grooves extending along the sliding direction of the pin assembly, two sides of the base 201 are respectively provided with a sliding portion 2011, and the sliding portions 2011 are in sliding fit with the guide grooves, so that by using the sliding fit between the sliding portions 2011 at two sides of the base 201 and the guide grooves on the inner side wall of the housing 10, the pin assembly 20 can be ensured to be smoothly and reliably switched between the retracted position and the extended position.
In one embodiment of the present invention, the first end cap 102 has two guide rods 1022 thereon, and the two guide rods 1022 extend in the axial direction of the cartridge case 101 inside the cartridge case 101.
The first elastic element 31 includes two first springs, the two first springs are respectively sleeved on the two guide rods 1022, one end of each first spring abuts against the first end cap 102, and the other end of each first spring abuts against the base 201.
That is to say, in this embodiment, the first spring is sleeved on the guiding rod 1022, and the first spring is abutted between the first end cap 102 and the base 201, so that when the base 201 slides, the base 201 forces the first spring to compress, and the guiding action of the guiding rod 1022 is utilized to ensure reliable sliding and reliable compression of the first spring.
Preferably, the pilot positioning pin 1021 is made of an insulating material, the length of the pilot positioning pin 1021 is less than one half of the length of the plug pin 202, and it can be understood that the length of the plug pin 202 refers to a portion of the plug pin 202 extending from the pilot positioning pin 1021, so that with such a length, the pilot positioning pin 1021 can be ensured to open the safety door, but the safety door cannot be inserted into the conductive piece in the insertion hole, and the plug pin 202 is just inserted into the conductive piece, thereby ensuring a more reliable electrical connection state during insertion.
In some embodiments of the present invention, an electrode holder 12 and a circuit board 11 are further disposed in the housing 10, two electrode elements 121 are disposed on the electrode holder 12, and the electrode elements 121 are electrically connected to the circuit board 11. The pin 202 has a conductive portion 2021 corresponding to the two electrode elements 121 at one end held in the case 10. When the pushing member 30 pushes the pin assembly 20 to switch to the extended position, the two conductive portions 2021 of the pin 202 electrically contact the two electrode elements 121 on the electrode holder 12.
That is, when the pin assembly 20 slides to the retracted position, the conductive portion 2021 of the pin 202 is far away from the electrode element 121 on the electrode holder 12 in the housing 10 to achieve the power-off, and when the pin assembly 20 slides to the extended position, the conductive portion 2021 of the pin 202 is close to the electrode holder 12 and contacts with the electrode element 121 on the electrode holder 12 to achieve the connection and conduction between the pin 202 and the circuit board 11, so that the ac power taken by the plug-in from the jack of the power socket can be input to the circuit board 11, and in this way, the problem of unreliable electrical connection caused by the movement of the pin 202 when the pin 202 is directly connected to the circuit board 11 by using a wire can be avoided.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An electric shock resistant power adapter, comprising:
the shell is provided with a head end, the end face of the head end is provided with two pilot positioning pins, the distance between the two pilot positioning pins is equal to the distance between two jacks on a power socket, so that the two pilot positioning pins can be inserted into the jacks of the power socket and open a safety door in the jacks, and each pilot positioning pin is provided with a through hole;
the base is slidably arranged in the shell, and the two pins correspond to the through holes in the two pilot positioning pins one by one;
the driving assembly is arranged on the shell and is operated by a user to drive the pin assembly to switch between the retracted position and the extended position; when the pin assembly is located at the retraction position, the pin is hidden in the shell, when the two pilot positioning pins are inserted into the jacks of the power socket, the pin assembly is switched from the retraction position to the extension position, and the pin extends out of the through holes of the pilot positioning pins and is inserted into the jacks of the power socket.
2. The shock resistant power adapter as set forth in claim 1, wherein said drive assembly comprises:
the pushing piece is arranged on the shell in a sliding mode and abuts against the base in the shell so as to push the base to move;
a first resilient member disposed between the base and the housing for providing a first resilient force urging the base from the extended position to the retracted position.
3. The electric shock resistant power adapter of claim 2 further comprising:
a locking member disposed on the housing for selectively locking the push member and the housing in place to enable the prong assembly to remain in the extended position.
4. The electric shock protection power adapter of claim 3, wherein the housing further comprises a tail end opposite to the head end, the tail end being provided with a hollowed-out opening;
the pushing piece is provided with a connecting end, an operating end and a retaining shoulder positioned between the operating end and the connecting end, the connecting end is positioned in the shell and is abutted against the base, the operating end is slidably arranged in the hollow-out opening in a penetrating way, and the retaining shoulder is positioned in the shell;
when the pin assembly is located at the retraction position, the retaining shoulder is abutted against the inner wall of the tail end, and the operating end protrudes outwards from the tail end; when the pin assembly is switched from the retracted position to the extended position, the blocking shoulder is far away from the inner wall of the tail end, the end surface of the operating end is approximately flush with the end surface of the tail end, and the pushing piece and the shell are locked and fixed by the locking piece.
5. The anti-shock power adapter of claim 4, wherein the latch comprises:
the tail end of the sliding lock catch is provided with a sliding groove communicated with the hollow opening, and the sliding lock catch is slidably arranged in the sliding groove;
the second elastic piece is arranged between the sliding lock catch and the tail end and used for providing a second elastic acting force for forcing the sliding lock catch to move towards the direction of the hollow opening;
the operating end is provided with a bayonet, and when the pushing piece pushes the pin assembly to be switched to the extending position, the bayonet is opposite to the sliding lock catch and is clamped, so that the pushing piece and the shell are locked and fixed.
6. The shock resistant power adapter of claim 5 wherein said housing comprises:
a cartridge case having both ends open;
a first end cap connected to one end of the cartridge housing;
a second end cap connected to the other end of the cartridge housing;
the pilot positioning foot is arranged on the outer side face of the first end cover, and the hollow opening is formed in the second end cover and penetrates through the second end cover.
7. The electric shock preventing power adapter as claimed in claim 1, wherein the housing has guide grooves formed on opposite side walls thereof, the guide grooves extending along the sliding direction of the pin assembly, and sliding portions are formed on both sides of the base and slidably engaged with the guide grooves.
8. The electric shock resistant power adapter of claim 6 wherein said first end cap has two guide rods thereon, said two guide rods extending axially of said cartridge housing within said cartridge housing;
the first elastic piece comprises two first springs, the two first springs are sleeved on the two guide rods respectively, one end of each first spring abuts against the first end cover, and the other end of each first spring abuts against the base.
9. The anti-electric shock power adapter as claimed in claim 1, wherein the pilot positioning pin is made of an insulating material, and the length of the pilot positioning pin is less than half of the length of the pin.
10. The electric shock preventing power adapter as claimed in claim 2, wherein an electrode holder and a circuit board are further arranged in the housing, two electrode elements are arranged on the electrode holder, and the electrode elements are electrically connected with the circuit board; one end of the pin, which is kept in the shell, is provided with a conductive part corresponding to the two electrode elements; when the pushing piece pushes the pin assembly to be switched to the extending position, the two conducting parts of the pin are electrically contacted with the two electrode pieces on the electrode seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210447530.5A CN114552266B (en) | 2022-04-27 | 2022-04-27 | Electric shock prevention power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210447530.5A CN114552266B (en) | 2022-04-27 | 2022-04-27 | Electric shock prevention power adapter |
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| Publication Number | Publication Date |
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| CN114552266A CN114552266A (en) | 2022-05-27 |
| CN114552266B true CN114552266B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210447530.5A Active CN114552266B (en) | 2022-04-27 | 2022-04-27 | Electric shock prevention power adapter |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5518411A (en) * | 1994-06-01 | 1996-05-21 | Belleci; Sal J. | Electrical plug with retractable prong shield |
| US8770994B1 (en) * | 2012-09-25 | 2014-07-08 | Brett Fagan | Child resistant safety plug accessory |
| CN103700973B (en) * | 2013-12-14 | 2017-02-08 | 张晶 | Socket |
| JP2016212963A (en) * | 2015-04-30 | 2016-12-15 | 平野 隆夫 | Electric plug safety cap |
| CN207518321U (en) * | 2017-12-11 | 2018-06-19 | 深圳市双创嘉科技有限公司 | The phone charger of protection against electric shock |
| CN209133767U (en) * | 2018-09-14 | 2019-07-19 | 东莞市蓝铁实业有限公司 | The safety electric source adapter pin configuration of protection against electric shock |
| CN110137736B (en) * | 2019-05-20 | 2022-01-07 | 大唐鸡西第二热电有限公司 | Electric shock prevention safety plug |
| US20210226371A1 (en) * | 2020-01-20 | 2021-07-22 | Benjamin Harper, JR. | Electrical Plug Locking Device |
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