CN107946852B - USB charging head with replaceable pins - Google Patents
USB charging head with replaceable pins Download PDFInfo
- Publication number
- CN107946852B CN107946852B CN201711383189.7A CN201711383189A CN107946852B CN 107946852 B CN107946852 B CN 107946852B CN 201711383189 A CN201711383189 A CN 201711383189A CN 107946852 B CN107946852 B CN 107946852B
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- Prior art keywords
- base
- charging seat
- contact piece
- plug
- pin
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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
- 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
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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
- H01R13/512—Bases; Cases composed of different pieces assembled by screw or screws
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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
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention provides a USB charging head with replaceable pins, which comprises a charging seat, a three-pin plug, two-pin plugs and a connecting piece, wherein one end of the charging seat is provided with a first contact, a second contact and a third contact; the three-pin plug comprises a first base and three first inserting pieces, wherein one end of each first inserting piece is provided with a first inserting block, and the first base is provided with three first slotted holes which are in inserting fit with the first inserting blocks; the two-pin plug comprises a second base and two second inserting pieces, one end of each second inserting piece is provided with a second inserting block, and two second slots matched with the second inserting blocks in an inserting manner are formed in the second base; the first base and the second base are both in threaded connection with the charging seat through a connecting piece; the charging seat is provided with a placing groove, the placing groove comprises a first cambered surface and a second cambered surface, and the maximum distance between the first cambered surface and the second cambered surface is equal to the diameter of the charging seat; the socket is suitable for a three-pin socket and a two-pin socket, and solves the problem that a common charging head can only charge by using the two-pin socket.
Description
Technical Field
The invention relates to the field of charging heads, in particular to a USB charging head with replaceable pins.
Background
At present, electronic products such as mobile phones, tablet computers and the like are increasingly growing, charging is rather an annoying problem, most common sockets are provided with only one three-pin socket and one two-pin socket, and common charging heads are only plugs of two pins, so that the situation that the two-pin sockets can only be used for charging the electronic products is caused, the three-pin sockets cannot be used, and the space of the socket cannot be fully utilized; and in some occasions, the socket only has a three-pin socket, so that the problem that the electronic product needs to be charged urgently cannot be solved.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problem solved by the invention is to provide the USB charging head with the replaceable pins, which is novel in structure, convenient to assemble and disassemble, suitable for sockets of a three-pin socket and a two-pin socket, solves the problem that the common charging head can only charge by using the two-pin socket, and obviously improves the practicability and applicability of the charging head.
To achieve the purpose, the invention adopts the following technical scheme:
the invention provides a USB charging head with replaceable pins, which comprises a charging seat, a three-pin plug, two-pin plugs and a connecting piece, wherein the charging seat is of a columnar structure, one end face of the charging seat is inwards recessed to form a containing cavity for placing a USB connector, the other end of the charging seat is provided with a first contact piece, a second contact piece and a third contact piece, the third contact piece and the second contact piece are electrically connected with a circuit original in the charging seat, the third contact piece is arranged in parallel with the second contact piece, and the first contact piece is positioned above the second contact piece and the third contact piece and is positioned on a symmetrical central line of the second contact piece and the third contact piece; the three-pin plug comprises a columnar first base and three first inserting pieces, one end of each first inserting piece is provided with a first inserting block, the first base is provided with three first slotted holes, the three first slotted holes are respectively corresponding to the first contact piece, the second contact piece and the third contact piece in position, and each first slotted hole is in inserting fit with the first inserting block; the two-pin plug comprises a columnar second base and two second inserting pieces, one end of each second inserting piece is provided with a second inserting block, two second slotted holes are formed in the second base, the two second slotted holes correspond to the positions of the second contact piece and the third contact piece respectively, and each second slotted hole is in inserting fit with the second inserting block; the diameters of the first base, the second base and the charging seat are equal to the inner diameter of the connecting piece, threads are arranged on the inner wall of the connecting piece, the side walls of the first base and the second base, threads are arranged on the side wall of one end, far away from the accommodating cavity, of the charging seat, and the first base and the second base are in threaded connection with the charging seat through the connecting piece; a mounting groove is formed in the side wall of the charging seat, the mounting groove comprises a first cambered surface and a second cambered surface, the openings of the first cambered surface and the second cambered surface are arranged oppositely, and the maximum distance between the first cambered surface and the second cambered surface is equal to the diameter of the charging seat; five placing holes are formed in the bottom face of the placing groove, three placing holes correspond to the positions of the three first inserting pieces, and the remaining two placing holes correspond to the positions of the two second inserting pieces.
In the preferred technical scheme of the invention, a first electricity isolating plate is stuck on the end face of the first base, three first through holes corresponding to the first inserting sheet are arranged on the first electricity isolating plate, and the first through holes are matched with the first inserting sheet in shape; the end face of the second base is stuck with a second electricity isolating plate, two second through holes corresponding to the second inserting pieces in position are arranged on the second electricity isolating plate, and the second through holes are matched with the second inserting pieces in shape.
In the preferred technical scheme of the invention, a first positioning hole is formed in the middle of the three-pin plug, a second positioning hole is formed in the middle of the two-pin plug, a vertical rod is arranged at the bottom of the first mounting groove, and the diameter of the vertical rod is equal to the diameters of the first positioning hole and the second positioning hole; and the side wall of the vertical rod is provided with threads, and the top of the vertical rod is provided with a detachable nut.
In a preferred technical scheme of the invention, a positioning rod is arranged in the center of the end face of the charging seat, which is far away from the accommodating cavity, the diameter of the positioning rod is equal to the diameters of the first positioning hole and the second positioning hole, and the height of the positioning rod is smaller than the heights of the first base and the second base.
In the preferred technical scheme of the invention, a first convex ring and a second convex ring are arranged on the side wall of the charging seat, which is far away from one end of the accommodating cavity, and the first convex ring is positioned on one side of the second convex ring, which is far away from the accommodating cavity; a movable ring is sleeved on the charging seat between the first convex ring and the second convex ring, and the inner diameter of the movable ring is larger than the diameter of the charging seat and smaller than the diameters of the first convex ring and the second convex ring; the movable ring is connected with the connecting piece through a chain.
In a preferred technical scheme of the invention, when the two-pin plug or the three-pin plug is assembled with the charging head set, the maximum distance from the second base or the first base to the first convex ring is equal to the height of the connecting piece.
In a preferred technical scheme of the invention, the end face of the first plug-in block far away from the first plug-in sheet is lower than the end face of the first base; the end face of the second plug-in block far away from the second plug-in sheet is lower than the end face of the second base.
In a preferred technical scheme of the invention, an anti-collision groove is arranged on the end face of the second base far away from the second inserting piece, and the anti-collision groove is positioned above the second slotted hole and corresponds to the first contact piece of the charging seat.
In a preferred technical scheme of the invention, the depth of the placement groove is greater than the heights of the first base and the second base.
In a preferred technical scheme of the invention, chamfer angles are arranged at edges of the first positioning hole and the second positioning hole.
The beneficial effects of the invention are as follows:
the invention provides
The USB charging head with replaceable pins is novel in structure, the charging seat is provided with the placing groove capable of placing the plug, and the detachable three-pin plug or two-pin plug is placed in the placing groove, so that the charging head can replace the plug according to the actual socket type, the problem that the common charging head can only charge by utilizing the two-pin socket is solved, and the practicability and applicability of the charging head are obviously improved.
Drawings
Fig. 1 is a schematic perspective view of a first view of a USB charging head with replaceable pins according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a second perspective view of a USB charging head with replaceable pins according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a charging stand according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a three-pin plug according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a two-pin plug according to an embodiment of the present invention.
In the figure:
100. a charging stand; 110. a first contact; 120. a second contact; 130. a third contact; 140. a receiving chamber; 150. a first collar; 160. a second convex ring; 170. a positioning rod; 200. a three-pin plug; 210. a first base; 220. a first insert sheet; 230. a first plug block; 240. a first slot; 250. a first positioning hole; 300. two pin plug; 310. a second base; 320. a second insert sheet; 330. a second plug block; 340. a second slot; 350. a second positioning hole; 360. an anti-collision groove; 400. a connecting piece; 500. a mounting groove; 510. a first cambered surface; 520. a second cambered surface; 530. a mounting hole; 540. a vertical rod; 550. a nut; 610. a first electricity-isolating plate; 611. a first through hole; 620. a second electricity-isolating plate; 621. a second through hole; 700. a movable ring; 710. and (3) a chain.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, in the embodiment of the present invention, a USB charging head with replaceable pins is disclosed, including a charging stand 100, a three-pin plug 200, a two-pin plug 300, and a connector 400, where the charging stand 100 has a columnar structure, one end of the charging stand 100 is recessed inward to form a receiving cavity 140 for placing a USB connector, the other end of the charging stand is provided with a first contact 110, a second contact 120, and a third contact 130, the third contact 130 and the second contact 120 are electrically connected with a circuit original in the charging stand 100, and the third contact 130 is arranged flush with the second contact 120, and the first contact 110 is located above the second contact 120 and the third contact 130 and on a symmetrical center line of the second contact 120 and the third contact 130; the three-pin plug 200 includes a first column-shaped base 210 and three first inserting pieces 220, one end of each first inserting piece 220 is provided with a first inserting block 230, the first base 210 is provided with three first slots 240, the three first slots 240 respectively correspond to the positions of the first contact 110, the second contact 120 and the third contact 130, and each first slot 240 is in inserting fit with the first inserting block 230; the two-pin plug 300 includes a second column-shaped base 310 and two second inserting pieces 320, one end of each second inserting piece 320 is provided with a second inserting block 330, the second base 310 is provided with two second slots 340, the two second slots 340 respectively correspond to the positions of the second contact 120 and the third contact 130, and each second slot 340 is in inserting fit with the second inserting block 330; the diameters of the first base 210, the second base 310 and the charging stand 100 are equal to the inner diameter of the connecting piece 400, the inner wall of the connecting piece 400, the side walls of the first base 210 and the second base 310 are respectively provided with threads, the side wall of one end of the charging stand 100, which is far away from the accommodating cavity 140, is provided with threads, and the first base 210 and the second base 310 are respectively connected with the charging stand 100 through the threads of the connecting piece 400; a mounting groove 500 is formed in the side wall of the charging seat 100, the mounting groove 500 includes a first arc surface 510 and a second arc surface 520, the openings of the first arc surface 510 and the second arc surface 520 are arranged opposite to each other, and the maximum distance between the first arc surface 510 and the second arc surface 520 is equal to the diameter of the charging seat 100; five placement holes 530 are provided on the bottom surface of the placement groove 500, wherein three placement holes 530 correspond to three first inserting pieces 220, and the remaining two placement holes 530 correspond to two second inserting pieces 320.
The above-mentioned USB charging head with replaceable pins, in which the charging stand 100 is provided with the placement groove 500 in which the plug can be placed, is novel in structure; and the detachable three-pin plug 200 or the two-pin plug 300 is placed in the placing groove 500, so that the charging seat 100 can be replaced according to the actual socket type, the problem that a common charging head can only charge by using the two-pin socket is solved, and the practicability and the applicability of the charging head are obviously improved.
More specifically, when the connection end of the charging stand 100 is connected to the two-pin plug 300 through the connection member 400, the three-pin plug 200 is placed in the placement groove 500; when the three-pin plug 200 is required to be replaced, the three-pin plug 200 is removed from the mounting groove 500, then the connecting piece 400 is rotated, the two-pin plug 300 is removed from the charging seat 100, the three-pin plug 200 is finally connected with the connecting end of the charging seat 100 through the connecting piece 400, and the two-pin plug 300 is placed in the mounting groove 500 and fixed, so that the replacement is completed; when the connection end of the charging stand 100 is connected with the three-pin plug 200 through the connection piece 400, the same operation is performed.
Further, as shown in fig. 4 and 5, a first electricity-isolating plate 610 is adhered to the end surface of the first base 210, three first through holes 611 corresponding to the first inserting sheet 220 are provided on the first electricity-isolating plate 610, and the first through holes 611 are matched with the first inserting sheet 220 in shape; the second base 310 is provided with a second insulating plate 620 adhered to an end surface thereof, the second insulating plate 620 is provided with two second through holes 621 corresponding to the second inserting pieces 320, the second through holes 621 are adapted to the second inserting pieces 320 in shape, and the first insulating plate 610 and the second insulating plate 620 are designed to prevent the first inserting block 230 and the second inserting block 330 from being exposed, thereby avoiding occurrence of safety accidents.
Further, as shown in fig. 4 and 5, a first positioning hole 250 is provided in the middle of the tripod plug 200, a second positioning hole 350 is provided in the middle of the tripod plug 300, a vertical rod 540 is provided at the bottom of the first mounting groove 500, and the diameter of the vertical rod 540 is equal to the diameters of the first positioning hole 250 and the second positioning hole 350; the side wall of the upright pole 540 is provided with threads, and the top of the upright pole 540 is provided with a detachable nut 550; the design of the upright 540 facilitates the guiding and positioning of the two-pin plug 300 and the three-pin plug 200, and the nut 550 is used to fix the two-pin plug 300 and the three-pin plug 200.
Further, as shown in fig. 3, a positioning rod 170 is disposed at the center of the end surface of the charging stand 100 away from the accommodating cavity 140, the diameter of the positioning rod 170 is equal to the diameters of the first positioning hole 250 and the second positioning hole 350, and the height of the positioning rod 170 is smaller than the height of the first base 210 and the second base 310; the positioning rod 170 is designed to facilitate accurate alignment during replacement of the two-pin plug 300 or the three-pin plug 200, thereby improving replacement operability and replacement efficiency.
Further, as shown in fig. 1 and 2, a first convex ring 150 and a second convex ring 160 are disposed on a side wall of the charging stand 100 away from one end of the accommodating cavity 140, and the first convex ring 150 is located on a side of the second convex ring 160 away from the accommodating cavity 140; a movable ring 700 is sleeved on the charging seat 100 between the first convex ring 150 and the second convex ring 160, and the inner diameter of the movable ring 700 is larger than the diameter of the charging seat 100 and smaller than the diameters of the first convex ring 150 and the second convex ring 160; the movable ring 700 is connected with the connecting piece 400 through a chain 710; the connection of the connection member 400 to the movable ring 700 through the chain 710 prevents the connection member 400 from falling or being lost during replacement or use; and the movable ring 700 is movably engaged with the charging stand 100, the chain 710 can be prevented from obstructing the rotation of the connector 400 when the engagement is performed.
Further, when the two-pin plug 300 or the three-pin plug 200 is assembled with the charging head 100, the maximum distance from the second base 310 or the first base 210 to the first convex ring 150 is equal to the height of the connecting piece 400; the design ensures the tightness of the whole structure, reduces dust from entering the joint and influences conduction; and the overall beauty of the USB charging head with the replaceable pins can be improved.
Further, the end surface of the first plug block 230 away from the first plug 220 is lower than the end surface of the first base 210; an end surface of the second plug block 330 remote from the second plug 320 is lower than an end surface of the second base 310; the design can prevent the first base 210 and the second base 310 from excessively extruding the first contact 110, the second contact 120 and the third contact 130 when the three-pin plug 200 and the two-pin plug 300 are matched with the charging head 100, so as to avoid the subsequent contact and conduction problems.
Further, as shown in fig. 5, an anti-collision groove 360 is provided on an end surface of the second base 310 away from the second insert 320, and the anti-collision groove 360 is located above the second slot 340 and corresponds to the first contact 110 of the charging stand 100; the design of the anti-collision groove 360 can prevent the first contact 110 from directly contacting the second base 310 when the two-pin plug 300 is mated with the charging stand 100, so as to avoid the problem of excessive extrusion of the first contact 110 and influence on contact conduction after the three-pin plug 200 is replaced subsequently.
Further, the depth of the seating groove 500 is greater than the heights of the first and second bases 210 and 310; the design can reduce the protruding height of the first base 210 and the second base 310 when being placed in the placement groove 500, and reduce the occupied space.
Further, chamfer angles are arranged at edges of the first positioning hole 250 and the second positioning hole 350; the chamfer design facilitates the smooth insertion of the first base 210 and the second base 310 into the upright 540 when the first base 210 and the second base 310 are mated with the upright 540, thereby completing the placement of the first base 210 or the second base 310.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The invention is not to be limited by the specific embodiments disclosed herein, and other embodiments are within the scope of the invention as defined by the claims of the present application.
Claims (4)
1. The utility model provides a USB of removable pin charges head which characterized in that:
the charging device comprises a charging seat (100), a three-pin plug (200), a two-pin plug (300) and a connecting piece (400), wherein the charging seat (100) is of a columnar structure, one end face of the charging seat (100) is inwards sunken to form a containing cavity (140) for containing a USB connector, a first contact piece (110), a second contact piece (120) and a third contact piece (130) are arranged at the other end of the charging seat (100), the third contact piece (130) and the second contact piece (120) are electrically connected with a circuit in the charging seat (100), the third contact piece (130) and the second contact piece (120) are arranged in parallel, and the first contact piece (110) is positioned above the second contact piece (120) and the third contact piece (130) and is positioned on a symmetrical central line of the second contact piece (120) and the third contact piece (130);
the three-pin plug (200) comprises a columnar first base (210) and three first inserting pieces (220), one end of each first inserting piece (220) is provided with a first inserting block (230), the first base (210) is provided with three first slotted holes (240), the three first slotted holes (240) respectively correspond to the positions of the first contact piece (110), the second contact piece (120) and the third contact piece (130) in sequence, and each first slotted hole (240) is in inserting fit with the first inserting block (230); the two-pin plug (300) comprises a columnar second base (310) and two second inserting pieces (320), one end of each second inserting piece (320) is provided with a second inserting block (330), the second base (310) is provided with two second slotted holes (340), the two second slotted holes (340) respectively correspond to the positions of the second contact piece (120) and the third contact piece (130), and each second slotted hole (340) is in inserting fit with the second inserting block (330);
the diameters of the first base (210), the second base (310) and the charging seat (100) are equal to the inner diameter of the connecting piece (400), threads are arranged on the inner wall of the connecting piece (400), the side walls of the first base (210) and the second base (310), threads are arranged on the side wall of one end, far away from the accommodating cavity (140), of the charging seat (100), and the first base (210) and the second base (310) are connected with the charging seat (100) through the threads of the connecting piece (400);
a mounting groove (500) is formed in the side wall of the charging seat (100), the mounting groove (500) comprises a first cambered surface (510) and a second cambered surface (520), openings of the first cambered surface (510) and the second cambered surface (520) are arranged oppositely, and the maximum distance between the first cambered surface (510) and the second cambered surface (520) is equal to the diameter of the charging seat (100); five placement holes (530) are formed in the bottom surface of the placement groove (500), wherein three placement holes (530) correspond to the positions of the three first inserting sheets (220) in sequence, and the positions of the remaining two placement holes (530) correspond to the positions of the two second inserting sheets (320);
a first electricity isolation plate (610) is stuck on the end face of the first base (210), three first through holes (611) corresponding to the first inserting pieces (220) are formed in the first electricity isolation plate (610), and the first through holes (611) are matched with the first inserting pieces (220) in shape; a second electricity isolation plate (620) is stuck on the end face of the second base (310), two second through holes (621) corresponding to the second inserting pieces (320) are arranged on the second electricity isolation plate (620), and the second through holes (621) are matched with the second inserting pieces (320) in shape;
the middle part of the tripod plug (200) is provided with a first positioning hole (250), the middle part of the tripod plug (300) is provided with a second positioning hole (350), the bottom of the first mounting groove (500) is provided with a vertical rod (540), and the diameter of the vertical rod (540) is equal to the diameters of the first positioning hole (250) and the second positioning hole (350); the side wall of the upright rod (540) is provided with threads, and the top of the upright rod (540) is provided with a detachable nut (550);
a positioning rod (170) is arranged in the center of the end surface of the charging seat (100) far away from the accommodating cavity (140), the diameter of the positioning rod (170) is equal to the diameters of the first positioning hole (250) and the second positioning hole (350), and the height of the positioning rod (170) is smaller than the heights of the first base (210) and the second base (310);
a first convex ring (150) and a second convex ring (160) are arranged on the side wall of one end, far away from the accommodating cavity (140), of the charging seat (100), and the first convex ring (150) is positioned on one side, far away from the accommodating cavity (140), of the second convex ring (160); a movable ring (700) is sleeved on the charging seat (100) between the first convex ring (150) and the second convex ring (160), and the inner diameter of the movable ring (700) is larger than the diameter of the charging seat (100) and smaller than the diameters of the first convex ring (150) and the second convex ring (160); the movable ring (700) is connected with the connecting piece (400) through a chain (710);
an anti-collision groove (360) is formed in the end face of the second base (310) far away from the second inserting piece (320), and the anti-collision groove (360) is located above the second slot hole (340) and corresponds to the first contact piece (110) of the charging seat (100);
the depth of the placement groove (500) is greater than the heights of the first base (210) and the second base (310).
2. The pin replaceable USB charging head of claim 1 wherein:
when the two-pin plug (300) or the three-pin plug (200) is assembled and matched with the charging seat (100), the maximum distance from the second base (310) or the first base (210) to the first convex ring (150) is equal to the height of the connecting piece (400).
3. The pin replaceable USB charging head of claim 1 wherein:
an end surface of the first plug block (230) away from the first plug sheet (220) is lower than an end surface of the first base (210); an end surface of the second plug block (330) away from the second plug sheet (320) is lower than an end surface of the second base (310).
4. The pin replaceable USB charging head of claim 1 wherein:
and a chamfer is arranged at the edge of the first positioning hole (250) and the second positioning hole (350).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383189.7A CN107946852B (en) | 2017-12-20 | 2017-12-20 | USB charging head with replaceable pins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383189.7A CN107946852B (en) | 2017-12-20 | 2017-12-20 | USB charging head with replaceable pins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107946852A CN107946852A (en) | 2018-04-20 |
| CN107946852B true CN107946852B (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711383189.7A Active CN107946852B (en) | 2017-12-20 | 2017-12-20 | USB charging head with replaceable pins |
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| Country | Link |
|---|---|
| CN (1) | CN107946852B (en) |
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| CN107946852A (en) | 2018-04-20 |
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