CN110444938B - Plug for preventing bad contact and mobile phone charger - Google Patents
Plug for preventing bad contact and mobile phone charger Download PDFInfo
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- CN110444938B CN110444938B CN201910626549.4A CN201910626549A CN110444938B CN 110444938 B CN110444938 B CN 110444938B CN 201910626549 A CN201910626549 A CN 201910626549A CN 110444938 B CN110444938 B CN 110444938B
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- 238000013519 translation Methods 0.000 claims description 64
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- 230000001413 cellular effect Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 23
- 230000037431 insertion Effects 0.000 abstract description 23
- 230000007246 mechanism Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 206010014357 Electric shock Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 2
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- 229920000052 poly(p-xylylene) Polymers 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
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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
- H01R13/02—Contact members
- H01R13/04—Pins or blades for co-operation with sockets
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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
-
- 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
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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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
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/508—Bases; Cases composed of different pieces assembled by a separate clip or spring
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
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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
- H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/16—Connectors or connections adapted for particular applications for telephony
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention discloses a plug capable of preventing poor contact, which comprises a shell, two pins positioned at one end of the shell and a clamping structure positioned on the shell and the pins, wherein the pins are provided with openings along the length direction, the pins are divided into a first inserting sheet and a second inserting sheet by the openings, and the clamping structure is used for enabling the second inserting sheet of the pins to approach to contact sheets of a socket and enabling the pins to cling to the contact sheets of the socket when the pins are inserted into the socket. The plug pins are provided with openings along the length direction, the openings divide the plug pins into a first insertion sheet and a second insertion sheet, the clamping mechanisms are arranged on the shell and the plug pins, when the plug pins of the plug are inserted into the socket, the second insertion sheets of the plug pins are close to the contact sheets of the socket, the two second insertion sheets of the two plug pins are close to the contact sheets of the socket at the same time, so that the plug pins are tightly attached to the contact sheets of the socket, the technical problem that the service life of a mobile phone charger is shortened due to poor contact between the plug pins of the plug and the contact sheets of the socket is solved, and the mobile phone charger comprises the plug disclosed by.
Description
Technical Field
The invention relates to the technical field of mobile phone chargers, in particular to a plug capable of preventing poor contact and a mobile phone charger.
Background
In modern society, mobile phones are almost one of indispensable tools in people's daily life, and according to related research, the popularity of american smart phones reaches 77%, korea 94%, and the popularity of chinese smart phones also reaches 68%. Almost every mobile phone is matched with a power supply charging plug, but the service life of the plug used by each power supply charging plug is far shorter than that of the mobile phone, and the service life of most mobile phone chargers is insufficient due to the fact that the power supply charging plug is in poor contact with a socket due to the fact that the use charging times are accumulated.
Due to the fact that the socket quality on the market is uneven, the plug and the socket are not matched tightly enough, poor contact between the plug pins and the contact pieces in the socket is easily caused, charging is interrupted in the charging process, long-term poor contact is caused, the mobile phone charger is greatly damaged by intermittent charging, and the charger is easily scrapped in advance.
For example, chinese patent publication No. CN207303529U, publication date of authorization is 2018, 05 and 01, entitled "plug and mobile phone charger", which discloses a plug and mobile phone charger, and relates to the technical field of electrical equipment, the plug includes a plug body and pins, the pins are disposed at a first end of the plug body, and further includes a push rod penetrating through the plug body, an axis of the push rod is parallel to a length direction of the pins, and the push rod can slide relative to the plug body; a first push plate is fixedly arranged at one end of the push rod close to the pin, and a second push plate is fixedly arranged at one end of the push rod far away from the pin; the first end of the plug body is provided with a limiting groove and a first through hole, the second end of the plug body is provided with a second through hole, and the limiting groove is communicated with the first through hole; the first push plate and the second push plate are both positioned outside the plug body; the second end of the plug body is provided with a flange which is arranged symmetrically with respect to the axis of the push rod. Although the technical problem that inconvenience is brought to a user due to the fact that a plug is pulled out of a socket and the user needs to operate with two hands is solved, a solution is not provided for the problem that the service life of a mobile phone charger is shortened due to poor contact between a plug pin and the socket of the charger, and therefore a plug and a mobile phone charger capable of preventing the poor contact between the plug pin and the socket of the charger are urgently needed.
Disclosure of Invention
The invention provides a plug for preventing poor contact and a mobile phone charger for preventing the poor contact, which aim to overcome the technical problem that the service life of the mobile phone charger is shortened due to the poor contact of a pin of the plug and a contact piece of a socket in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a prevent contact failure's plug, includes casing, two tight structures of clamp that are located the base pin of casing one end and are located the casing and base pin, base pin is equipped with the opening along length direction, the opening will be participated in and is divided into first inserted sheet and second inserted sheet, it is close to the contact piece of socket to press from both sides tight structure to be used for making the second inserted sheet of base pin, makes the contact piece of hugging closely the socket of base pin when base pin inserts the socket.
In the above-mentioned scheme, participate in and be equipped with the opening along length direction, the opening will be participated in and be divided into first inserted sheet and second inserted sheet, through set up clamping mechanism on casing and participating in, when the participating in of plug inserts the socket, make the second inserted sheet of participating in be close to the contact piece direction of socket, two second inserted sheets of two participating in are close to the contact piece of socket simultaneously for the contact piece of participating in hugging closely the socket, the contact piece contact failure that has solved the participating in of plug and socket leads to the cell-phone charger life-span to shorten's technical problem.
Preferably, the drop-preventing plug further includes: USB socket sets up USB socket on the plug for the plug can match all kinds of cell-phone charging wires, satisfies different demands.
Preferably, the clamping structure includes:
the translation rod, the connecting rod and the return spring;
the translation rod is connected in the opening in a sliding mode and used for sliding in the opening and enabling the second inserting piece to be pressed to the contact piece of the socket;
the translation rods correspond to the pins one to one;
the connecting rod is fixedly connected with the translation rods on the two pins, and the connecting rod and the translation rods form a translation frame;
the reset spring is connected with the translation frame and used for driving the translation frame to reset.
The translation rod is connected in the opening in a sliding mode, the diameter of the translation rod is slightly larger than the width of the opening, and the translation rod enables the second insertion piece to be pushed towards the contact piece of the socket; translation pole and participate in the one-to-one, it is provided with a translation pole to correspond in the opening of participating in, it links to each other through the connecting rod to be located two translation poles of participating in, the connecting rod constitutes a translation frame rather than the translation pole that connects, the translation frame passes through reset spring and links to each other with the casing, in the in-process of participating in and inserting the socket, participate in inserting the socket gradually, the translation pole supports and leans on the socket on the surface, the casing is close to the translation frame gradually, reset spring is compressed, when the plug extracts the jack, the translation frame can be automatic re-setting under reset spring's effect.
Preferably, the opening is V-shaped. The opening on the pin is designed into a V shape, so that the approaching degree of the second inserting piece to the contact piece of the socket is increased along with the increasing depth of the pin inserted into the socket, and the tightness degree of the pin inserted into the socket can be properly adjusted through the inserting depth of the pin.
Preferably, the shell is sleeved with a shielding sleeve, one end of the shielding sleeve is fixedly connected with the translation frame, and the shielding sleeve is used for shielding the insertion sheet which is not inserted into the socket. When the tightness degree of the plug pins inserted into the socket is properly adjusted through the insertion depth of the plug pins, the shielding sleeve can shield the exposed plug pins when the plug pins are not required to be completely inserted into the socket, and the safety performance is improved.
Preferably, the first tab thickness is greater than the second tab, and the first tab length is greater than the second tab length. The first inserting sheet is longer than the second inserting sheet, so that when the plug is inserted into some sockets with protective plates, such as child anti-electric-shock sockets or error-difference-prevention sockets, the protective plates are firstly pushed open by the first inserting sheet with thicker and better strength, then the pins are integrally inserted into the sockets, the second inserting sheet which is mainly used for being pushed open to be attached to an error contact sheet on the pins cannot be bent due to the fact that the second inserting sheet is used for pushing open the protective plates, and due to the skin effect of alternating current, the current can be gathered on the surface layer of the pins instead of being evenly distributed on the surface area of the cross section of the whole pins, and therefore the thickness of the second inserting sheet is smaller than that of the first inserting sheet, and the transmission of the current cannot be greatly.
Preferably, the return spring is an insulating spring. The safety performance of the plug can be increased by using an insulating spring, which can be a spring with a surface coated with a parylene insulating layer or a spring made of rubber.
Preferably, the pins are made of a resilient conductive metal. The elastic conductive metal can be beryllium copper, and the elastic conductive metal ensures the conductive performance of the pin and enables the second inserting piece of the pin to be attached along the contact piece of the socket.
Preferably, one of the inserting pieces of the pin is provided with a limiting bulge, and the limiting bulge is used for preventing the translation rod from being separated from the opening. The limiting protrusion can be arranged on the first inserting piece at the open end of the pin opening or on the second inserting piece at the open end of the pin opening, and the limiting protrusion can block the translation rod from moving outwards from the opening and plays a role in preventing the translation rod from being separated from the opening.
In another aspect, the present invention further provides a mobile phone charger, which includes a plug for preventing poor contact, which satisfies the technical features of the above embodiments.
The invention has the beneficial effects that:
(1) through the opening arranged on the pin and the clamping device arranged on the opening and the plug shell, when the pin of the plug is inserted into the socket, the second inserting piece of the pin approaches to the contact piece direction of the socket, so that the pin is tightly attached to the contact piece of the socket, and the technical problem that the service life of a mobile phone charger is shortened due to poor contact between the pin of the plug and the contact piece of the socket is solved;
(2) the plug is provided with the USB socket, so that the plug can be matched with various mobile phone charging wires, and different requirements are met;
(3) a clamping device is constructed by the translation rods, the connecting rods and the reset springs, the pins are tightly attached to the contact pieces of the socket through translation of the translation rods in the two pin openings, and the pins can automatically reset under the action of the reset springs.
(4) The V-shaped opening enables the clamping degree of the pin to be in direct proportion to the insertion depth, the clamping degree of the pin can be considered to be controlled, and the use is convenient.
(5) The pin is provided with a shielding sleeve for shielding the exposed pin, so that the safety performance of the plug is improved.
(6) The first inserting sheet is thick and the second inserting sheet, and the first inserting sheet is longer than the second inserting sheet so that the second inserting sheet of the plug can not be damaged in the using process.
Drawings
FIG. 1 is a schematic view of a poor contact prevention plug according to the present invention;
FIG. 2 is a front view provided in embodiment 1 of the present invention;
FIG. 3 is a schematic structural diagram provided in example 1 of the present invention;
fig. 4 is a schematic structural diagram of a use state provided in embodiment 1 of the present invention;
FIG. 5 is a schematic structural diagram provided in example 2 of the present invention;
fig. 6 is a schematic structural diagram of a use state provided in embodiment 2 of the present invention;
fig. 7 is a schematic structural diagram provided in embodiment 2 of the present invention.
In the figure: the shell body 1, the pin 2, the first inserting piece 2.1, the second inserting piece 2.2, the opening 2.3, the limiting protrusion 2.4, the clamping device 3, the translation rod 3.1, the connecting rod 3.2, the reset spring 3.3, the translation frame 3.4 and the shielding sleeve 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
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 by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections, either mechanical or electrical, or communicating with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1:
the embodiment of the invention provides a plug for preventing poor contact, which comprises a shell 1, two pins 2 positioned at one end of the shell 1 and a clamping structure positioned on the shell 1 and the pins 2, wherein the pins 2 are provided with openings 2.3 along the length direction, the openings 2.3 divide the pins 2 into a first inserting piece 2.1 and a second inserting piece 2.2, the clamping structure is used for enabling the second inserting piece 2.2 of the pins 2 to approach to contact pieces of a socket and enabling the pins 2 to be tightly attached to the contact pieces of the socket when the pins 2 are inserted into the socket, and the clamping structure comprises: a translation rod 3.1, a connecting rod 3.2 and a return spring 3.3; the translation rod 3.1 is connected in the opening 2.3 in a sliding manner and used for sliding in the opening 2.3 and enabling the second inserting piece 2.2 to be pressed against the contact piece of the socket; the translation rods 3.1 correspond to the pins 2 one by one; the connecting rod 3.2 is fixedly connected with the translation rods 3.1 on the two pins 2, and the connecting rod 3.2 and the translation rods 3.1 form a translation frame 3.4; the reset spring 3.3 is connected with the translation frame 3.4 and used for driving the translation frame 3.4 to reset.
Fig. 1 is a schematic structural diagram of an embodiment 1 of the present invention, as shown in fig. 1 to 4, the plug for preventing poor contact includes a housing 1, a pin 2 and a clamping device 3, the clamping device 3 includes a translation frame 3.4 and a return spring 3.3, the pin 2 is provided with an opening 2.3 along a length direction, the opening 2.3 divides the pin 2 into a first insert 2.1 and a second insert 2.2, two pins 2 are arranged in parallel at one end of the housing 1, four inserts are arranged in parallel side by side, the translation frame 3.4 includes two translation rods 3.1 and two connecting rods 3.2, the two translation rods 3.1 are respectively installed in the openings 2.3 of the two pins 2, the translation rods 3.1 are slidably connected with the openings 2.3 of the pin 2, a diameter of the translation rod 3.1 is slightly larger than a width of the opening 2.3, a width of the opening 2.3 is 2mm, a diameter of the translation rod 3.1 is 3mm, the connecting rod 3.2 is connected with the return spring 3.3, one end of the reset spring 3.3 is connected with the connecting rod 3.2, and the other end is connected with the shell 1.
When the plug is used, the pin 2 of the plug is gradually inserted into the socket, the translation rod 3.1 is abutted against the surface of the socket, the translation rod 3.1 moves in the opening 2.3, the shell 1 is gradually close to the translation frame 3.4, and the two second insertion pieces 2.2 of the two pin 2 are simultaneously close to the contact pieces of the socket, so that the pin 2 is tightly attached to the contact pieces of the socket, the reset spring 3.3 is compressed in the insertion process, and when the plug is pulled out of the jack of the socket, the translation frame 3.4 can be automatically reset under the action of the reset spring 3.3.
Further, the drop-proof plug further includes: USB socket sets up USB socket on the plug for the plug can match all kinds of cell-phone charging wires, satisfies different demands.
Further, the return spring 3.3 is an insulating spring. The safety performance of the plug can be increased by using an insulating spring, which can be a spring with a surface coated with a parylene insulating layer or a spring made of rubber.
Further, the pin 2 is made of an elastic conductive metal. The resilient conductive metal may be beryllium copper, and the resilient conductive metal may be used to enable the second tabs 2.2 of the pins 2 to be attached along the contact pads of the socket while ensuring the conductive properties of the pins 2.
Furthermore, one of the inserting pieces of the pin 2 is provided with a limiting bulge 2.4, and the limiting bulge 2.4 is used for preventing the translation rod 3.1 from being separated from the opening 2.3. Spacing arch 2.4 can set up on participating in 2 opening 2.3 and opening the first inserted sheet 2.1 of end, perhaps sets up on participating in 2 opening 2.3 and opening the second inserted sheet 2.2 of end, and spacing arch 2.4 can block that translation pole 3.1 moves outside opening 2.3, plays the effect that prevents translation pole 3.1 and break away from opening 2.3.
Example 2, the rest of the structure of this example refers to example 1, with the following differences:
as shown in fig. 5 and 6, in this embodiment, the opening 2.3 of the pin 2 is V-shaped, two translation rods 3.1 are installed in the openings 2.3 of the two pins 2, the maximum width of the V-shaped opening 2.3 is slightly smaller than the diameter of the translation rod 3.1, when the pin 2 of the plug is inserted into the socket, the second insertion piece 2.2 of the pin 2 approaches the contact piece of the socket, the two second insertion pieces 2.2 of the two pins 2 approach the contact piece of the socket at the same time, so that the pin 2 is tightly attached to the contact piece of the socket, and the opening 2.3 is V-shaped, so that the approaching degree of the second insertion piece 2.2 to the contact piece of the socket increases with the increasing depth of the pin 2 inserted into the socket, and the degree of tightness of insertion of the pin 2 into the socket can be properly adjusted by the depth of the pin 2 inserted into the socket.
Further, the cover is equipped with and shelters from cover 4 on the casing 1, shelter from cover 4 one end with translation frame 3.4 fixed connection shelters from cover 4 and is used for sheltering from the inserted sheet of not inserting in the socket. When the tightness degree of the pin 2 inserted into the socket is properly adjusted through the insertion depth of the pin 2, when the pin 2 is not required to be completely inserted into the pin 2, the shielding sleeve 4 can shield the exposed pin 2, and the safety performance is improved.
Example 3, the remaining structure of this example refers to example 1, with the following differences:
the thickness of the first inserting sheet 2.1 of the pin 2 is larger than that of the second inserting sheet 2.2, and the length of the first inserting sheet 2.1 is larger than that of the second inserting sheet 2.2. Fig. 7 is a schematic structural diagram provided in embodiment 3 of the present invention, as shown in fig. 7, a pin 2 of the plug is provided with a V-shaped opening 2.3, the opening 2.3 divides the pin 2 into a first insertion piece 2.1 and a second insertion piece 2.2, the second insertion piece 2.2 is located inside, the first insertion piece 2.1 is located outside, the first insertion piece 2.1 is a thick metal piece and the second insertion piece 2.2 is a thin metal piece, a front end of the first insertion piece 2.1 is used for guiding the pin 2 to be inserted into a jack of the socket, and the second insertion piece 2.2 is used for being deformed to fit with a contact piece of the socket. The embodiment has the advantages that the first inserting sheet 2.1 is longer than the second inserting sheet 2.2, so that when the plug is inserted into some sockets with protective plates, such as child electric-shock-proof sockets or error-proof sockets, the protective plates are firstly jacked open by the first inserting sheet 2.1 which is thicker and has better strength, then the pin 2 is integrally inserted into the socket, so that the second inserting sheet 2.2 which is mainly used for being propped open to be jointed with the poor contact as the contact sheet on the pin 2 cannot be bent due to being used for jacking the protective plates, and due to the skin effect of alternating current, the current can be gathered on the surface layer of the pin 2 and not evenly distributed with the surface area of the cross section of the whole pin 2, and therefore, the thickness of the second inserting sheet 2.2 is smaller than that of the first inserting sheet 2.1, and the transmission of the current cannot be greatly.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (8)
1. A plug for preventing poor contact is characterized by comprising a shell, two plug pins positioned at one end of the shell and a clamping structure positioned on the shell and the plug pins, wherein the plug pins are provided with openings along the length direction, the plug pins are divided into a first plug-in sheet and a second plug-in sheet by the openings, the clamping structure is used for enabling the second plug-in sheet of the plug pins to approach to contact sheets of a socket, and the plug pins are enabled to cling to the contact sheets of the socket when the plug pins are inserted into the socket;
the clamping structure includes:
the translation rod, the connecting rod and the return spring;
the translation rod is connected in the opening in a sliding mode and used for sliding in the opening and enabling the second inserting piece to be pressed to the contact piece of the socket;
the translation rods correspond to the pins one to one;
the connecting rod is fixedly connected with the translation rods on the two pins, and the connecting rod and the translation rods form a translation frame;
the reset spring is connected with the translation frame and is used for driving the translation frame to reset;
the cover is equipped with and shelters from the cover on the casing, shelter from cover one end with translation frame fixed connection shelters from the cover and is used for sheltering from the inserted sheet that does not insert in the socket.
2. The poor contact prevention plug of claim 1, further comprising: a USB socket.
3. The contact failure preventing plug of claim 1, wherein the opening is V-shaped.
4. The poor contact prevention plug of claim 1 wherein the first blade has a thickness greater than the second blade and the first blade has a length greater than the second blade.
5. A contact fault preventing plug as claimed in claim 1, 3 or 4 wherein said return spring is an insulating spring.
6. A contact failure prevention plug as claimed in claim 1, 3 or 4 wherein the prongs are formed of a resilient conductive metal.
7. The poor contact preventing plug of claim 1, 3 or 4 wherein one of the blades of the pin is provided with a limiting protrusion for preventing the translation rod from being separated from the opening.
8. A charger for a cellular phone, comprising the poor contact preventing plug according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910626549.4A CN110444938B (en) | 2019-07-11 | 2019-07-11 | Plug for preventing bad contact and mobile phone charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910626549.4A CN110444938B (en) | 2019-07-11 | 2019-07-11 | Plug for preventing bad contact and mobile phone charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110444938A CN110444938A (en) | 2019-11-12 |
| CN110444938B true CN110444938B (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910626549.4A Active CN110444938B (en) | 2019-07-11 | 2019-07-11 | Plug for preventing bad contact and mobile phone charger |
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| Country | Link |
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| CN (1) | CN110444938B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201699207U (en) * | 2010-05-20 | 2011-01-05 | 马沛乐 | Flexible plug |
| CN204011859U (en) * | 2014-07-17 | 2014-12-10 | 刘继锁 | A kind ofly contact good supply socket |
| CN204858044U (en) * | 2015-07-17 | 2015-12-09 | 江苏辰阳电子有限公司 | Charger plug |
| CN205786778U (en) * | 2016-07-13 | 2016-12-07 | 国网山东省电力公司聊城供电公司 | A kind of electric connection and electric energy meter thereof |
-
2019
- 2019-07-11 CN CN201910626549.4A patent/CN110444938B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201699207U (en) * | 2010-05-20 | 2011-01-05 | 马沛乐 | Flexible plug |
| CN204011859U (en) * | 2014-07-17 | 2014-12-10 | 刘继锁 | A kind ofly contact good supply socket |
| CN204858044U (en) * | 2015-07-17 | 2015-12-09 | 江苏辰阳电子有限公司 | Charger plug |
| CN205786778U (en) * | 2016-07-13 | 2016-12-07 | 国网山东省电力公司聊城供电公司 | A kind of electric connection and electric energy meter thereof |
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| Publication number | Publication date |
|---|---|
| CN110444938A (en) | 2019-11-12 |
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