CN111725861A

CN111725861A - Head-replaceable charger with coaxial conductive structure

Info

Publication number: CN111725861A
Application number: CN202010443255.0A
Authority: CN
Inventors: 吴建忠; 简旭滨
Original assignee: Salcomp Shenzhen Co ltd
Current assignee: Salcomp Shenzhen Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-09-29
Anticipated expiration: 2040-05-22
Also published as: CN111725861B

Abstract

The invention relates to a head-replaceable charger with a coaxial conductive structure, which comprises a charger body and a plug assembly, wherein the charger body is internally provided with a bearing surface, and a first conductive terminal and a second conductive terminal are arranged on the bearing surface; the plug assembly is detachably connected with the charger body and comprises a plug seat and a coaxial conductive structure, wherein the coaxial conductive structure comprises a hollow insulating column, a first conductive element sleeved outside the hollow insulating column and a second conductive element penetrating through the hollow insulating column, the first conductive element is electrically connected with the first conductive terminal, and the second conductive element is electrically connected with the second conductive terminal. Therefore, the external dimension of the charger can be greatly reduced, the structural design is simplified, and the convenience of carrying and using is further improved.

Description

Head-replaceable charger with coaxial conductive structure

Technical Field

The present invention relates to a charger technology, and more particularly, to a replaceable charger with a coaxial conductive structure.

Background

The charger is used for converting alternating current into direct current and then transmitting the current to the electronic product, so that the electronic product can be charged and operated, for example: PDA, cell phone, e-book, tablet computer, etc.; among them, the head-replaceable charger can provide different pins for replacement, which further increases the versatility and convenience, and is widely favored and adopted by the existing market.

The existing head-replaceable charger mainly includes a charger body and a plug assembly, the plug assembly is connected corresponding to the charger body, the charger body is equipped with two conductive terminals which are arranged at intervals, the plug assembly is equipped with two connecting rods which are arranged at intervals, and each connecting rod is electrically connected corresponding to each conductive terminal.

However, in the conventional interchangeable head charger, since the conductive terminals and the conductive rods are disposed at intervals, the overall dimensions (or volume) of the charger body and the plug assembly cannot be effectively miniaturized, and the portable interchangeable head charger is not easy to carry and store.

In view of the above, the present inventors have made extensive studies to solve the above problems by combining two connecting rods into a connecting rod, which is an object of the present invention.

Disclosure of Invention

An object of the present invention is to provide a head-replaceable charger with a coaxial conductive structure, which can greatly reduce the external size of the charger through the design of the coaxial conductive structure, thereby improving the convenience of carrying and using.

In order to achieve the above object, the present invention provides a head-replaceable charger with a coaxial conductive structure, comprising a charger body and a plug assembly, wherein the charger body has a carrying surface, and the carrying surface is provided with a first conductive terminal and a second conductive terminal; the plug assembly is detachably connected with the charger body and comprises a plug seat and a coaxial conductive structure penetrating through the plug seat, the coaxial conductive structure comprises a hollow insulating column, a first conductive element sleeved outside the hollow insulating column and a second conductive element penetrating inside the hollow insulating column, the first conductive element is electrically connected with the first conductive terminal, and the second conductive element is electrically connected with the second conductive terminal.

The invention also has the following effects that the first conductive terminal and the second conductive terminal are jointly coated by the insulating cover and the terminal female seat, so that the flashover of voltage and current is avoided, and the use safety is further improved. By the integrated configuration of each conducting element and the hollow insulating column, the structure becomes more simplified.

Drawings

FIG. 1 is an assembled perspective view of a first embodiment of the present invention.

Fig. 2 is another view of fig. 1.

FIG. 3 is an exploded perspective view of a portion of the components of the present invention.

Fig. 4 is another view of fig. 3.

FIG. 5 is an exploded perspective view of the coaxial conductive structure of the present invention.

FIG. 6 is a sectional view of the interchangeable head charger assembly according to the present invention.

FIG. 7 is an assembled perspective view of a second embodiment of the present invention.

Fig. 8 is an exploded perspective view of a portion of the components of fig. 7.

Fig. 9 is an exploded perspective view of the female terminal block assembly and the conductive elements of the present invention.

FIG. 10 is an assembled cross-sectional view of a second embodiment of the present invention.

Reference numerals in the drawings indicate:

1 charger body

10: shell

11: cylinder

111: closed end

112 open end

113 notch of the groove

12 side cover

121: seat board

122: boss

123: hook

124 terminal fixing table

125 positioning column

126 perforation

127 terminal containing groove

A is a bearing surface

13 terminal female socket assembly

14 terminal female seat

141 terminal fixing table

142 positioning column

143 perforation of

144 terminal containing groove

15 insulating cover

20 power supply module

21: circuit board

22 electronic component

23 connection port

30. 30A first conductive terminal

31 fixed section

311 positioning hole

32 abutting section

33, a guide connection section

34 plug section

40 second conductive terminal

41. 41A conductive terminal

411 fixed segment

412 abutting section

413 connecting section

414 inserting section

42 conductive column

5 plug assembly

50: plug seat

51 casing

52 end cap

521 cover plate

522 convex base

523 convex plate groove

524 caulking groove

525 shaft hole

526 locating slot

60 coaxial conductive structure

61 hollow insulating column

611 terminal accommodating hole

62 first conductive connecting element

621 outer copper sleeve

622 conducting ring

623 positioning piece

624 conducting wire

63 second conductive connecting element

631 inner copper sleeve

632 conducting wire

70, a pin.

Detailed Description

The present invention will be described with reference to the accompanying drawings, which are provided for reference and illustration purposes only and are not intended to limit the present invention.

Referring to fig. 1 to 6, the present invention provides a head-replaceable charger with a coaxial conductive structure, which mainly includes a charger body 1 and a plug assembly 5.

The charger body 1 mainly includes a housing 10, a power module 20, a first conductive terminal 30 and a second conductive terminal 40, the housing 10 mainly includes a cylindrical pillar 11 and a side cover 12, the cylindrical pillar 11 of the embodiment is rectangular, but not limited to this shape, and has a closed end 111 and an open end 112, and a notch 113 is opened at the closed end 111. The side cover 12 is covered on the end of the column 11 corresponding to the opening end 112, and forms the bearing surface a of the housing 11.

The side cover 12 includes a seat plate 121 and a boss 122 extending from the seat plate 121, and a pair of hooks 123 are formed at one end of the boss 122 far from the seat plate 121; a terminal fixing table 124 and a positioning column 125 extend from one end of the seat plate 121 opposite to the boss 122; a through hole 126 is formed at the center of the terminal fixing base 124, a terminal receiving groove 127 (shown in fig. 3) is formed between the rear surface of the terminal fixing base 124 and the positioning post 125, and the terminal receiving groove 127 is formed above the positioning post 125.

The power module 20 is accommodated inside the cylindrical column 11, and mainly includes a circuit board 21, and a plurality of electronic components 22 are disposed on the circuit board 21, the electronic components 22 include related components such as capacitors, resistors, inductors, and winding sets, and a connection port 23, which may be a Micro USB connector or a Type C connector, is disposed on the circuit board 21 adjacent to the closed end 111, and the connection port 23 is disposed corresponding to the position of the notch 113.

The first conductive terminal 30 is made of a material with good conductivity such as copper or its alloy, and mainly includes a fixing section 31, a contact section 32 extending from the fixing section 31, and a conductive section 33 extending from the fixing section 31 and far away from the contact section 32, the fixing section 31 is provided with a positioning hole 311, the first conductive terminal 30 is sleeved on the positioning hole 125 by the positioning hole 311, and is fixed on the seat plate 121 by penetrating the terminal accommodating groove 127 through the conductive section 33, the contact section 32 is used for electrically connecting with the circuit board 21.

The second conductive terminal 40 mainly includes a conductive terminal 41 and a conductive pillar 42, both the conductive terminal 41 and the conductive pillar 42 are made of a conductive material such as copper or its alloy, the conductive terminal 41 includes a fixed section 411, an abutting section 412 extending from the fixed section 411, and a conductive section 413 extending from the fixed section 411 and far away from the abutting section 412, the fixed section 411 is attached to a side of the terminal fixing stage 124, the conductive section 413 is attached to the terminal fixing stage 124 and passes through the through hole 126 and the conductive section 413 through one end of the conductive pillar 42, the other end of the conductive pillar 42 is fixed in the terminal receiving groove 127 through assembling or molding, and the abutting section 412 is electrically connected to the circuit board 21.

The plug assembly 5 is detachably connected to the charger body 1, and mainly includes a plug socket 50, a coaxial conductive structure 60 and two pins 70, the plug socket 50 includes a housing 51 and an end cap 52, the end cap 52 is welded or snap-sealed by ultrasonic corresponding to one end of the housing 51, the housing 51 is rectangular, but not limited to this shape, and the pins 70 are inserted and fixed at one end far from the end cap 52.

The end cap 52 includes a cover plate 521 and a boss 522 extending from the cover plate 521, a boss receiving slot 523 is formed at an end of the boss 522 adjacent to the cover plate 521, a pair of insertion slots 524 are formed at a root of the boss receiving slot 523, the boss receiving slot 523 is used for inserting the boss 122, and the insertion slots 524 are used for rotatably clamping the hooks 123. In addition, a shaft hole 525 is formed in the middle of the boss 522, and two positioning grooves 526 are formed on the outer periphery of the shaft hole 525.

Referring to fig. 5, the coaxial conductive structure 60 and the plug socket 50 may be manufactured by insert injection or assembly, and the coaxial conductive structure 60 is inserted into the shaft hole 525 of the plug socket 50, the coaxial conductive structure 60 mainly includes a hollow insulating column 61, a first conductive element 62 and a second conductive element 63, the hollow insulating column 61 is made of a material with good insulating property such as plastic, and has a terminal accommodating hole 611 inside, the length of the hollow insulating column 61 is 23 millimeters (mm), the inner diameter of the terminal accommodating hole 611 is 1.6 millimeters (mm), and the maximum outer diameter of the hollow insulating column 61 is 5 millimeters (mm).

The first conductive element 62 includes an outer copper sleeve 621 and a conductive ring 622, the outer copper sleeve 621 is made of nickel-plated copper material, and is sleeved outside the hollow insulating cylinder 61 and positioned, the conductive ring 622 is sleeved on the outer copper sleeve 621 and has a positioning piece 623 respectively embedded in the positioning slots 526; the first conductive element 62 of the present embodiment further includes a conductive wire 624, one end of the conductive wire 624 is electrically connected to the conductive ring 622, and the other end of the conductive wire 624 is electrically connected to the pin 70.

The second conductive element 63 includes an inner copper sleeve 631 made of phosphor bronze, the inner copper sleeve 631 is inserted into the terminal receiving hole 611 of the hollow insulating post 61, and the end of the inner copper sleeve 63 is electrically connected to the conductive post 42 of the second conductive terminal 40; the second conductive element 63 of this embodiment further includes a conductive wire 632, one end of the conductive wire 632 is electrically connected to the inner copper sleeve 631, and the other end of the conductive wire 632 is electrically connected to the other pin 70.

Referring to fig. 7 to 10, the interchangeable head charger with coaxial conductive structure according to the present invention may be in the form of the above embodiment, and is mainly different from the above embodiment in that it further includes a terminal sub-base assembly 13 disposed inside the cylinder 11 and formed at one side of the side cover 12, the terminal sub-base assembly 13 mainly includes a terminal sub-base 14 and an insulating cover 15, the terminal sub-base 14 is provided with a terminal fixing platform 141 and a positioning post 142; a through hole 143 is formed at the center of the terminal fixing base 141, a terminal receiving groove 144 (shown in fig. 8) is formed between the rear surface of the terminal fixing base 141 and the positioning post 142, and the terminal receiving groove 144 is formed above the positioning post 142.

The first conductive terminal 30A mainly includes a fixing section 31, a connecting section 33 extending from the fixing section 31, and an inserting section 34 extending from the fixing section 31 and far away from the connecting section 33, wherein the fixing section 31 is provided with a positioning hole 311, and the first conductive terminal 30A is sleeved on the positioning column 142 by the positioning hole 311 and fixed on the terminal female seat 14 by penetrating the connecting section 33 through the terminal accommodating groove 144. The circuit board 21 of the power module 20 is provided with two terminal slots 211, and the plug section 34 is electrically connected by being plugged into one of the terminal slots 211 and then being welded.

The second conductive terminal 40 mainly includes a conductive terminal 41A and a conductive pillar 42, the conductive terminal 41A includes a fixed section 411, a conductive section 413 extending from the fixed section 411, and an insertion section 414 extending from the fixed section 411 and far away from the conductive section 413, one end of the conductive pillar 42 is connected to the through hole 143 and the conductive section 413 in a penetrating manner, the other end of the conductive pillar 42 is formed in the terminal accommodating groove 144, and the insertion section 414 is welded after being inserted into the other terminal inserting groove 211 so as to be electrically connected.

The insulating cover 15 covers the exterior of the terminal female socket 14 and covers the conductive terminals 41A of the first conductive terminal 30A and the second conductive terminal 40 together, so as to avoid flashover of voltage and current and further increase the safety of use.

In summary, the interchangeable head charger with coaxial conductive structure of the present invention can achieve the expected purpose of use, and solve the known defects, and completely meet the requirements of patent application, and the application is proposed according to the patent method, and the inventor is given detailed examination and granted the right of the present patent to ensure the right of the inventor.

Claims

1. A interchangeable head charger having a coaxial conductive structure, comprising:

the charger body is provided with a bearing surface, and the bearing surface is provided with a first conductive terminal and a second conductive terminal; and

the plug assembly is detachably connected with the charger body and comprises a plug seat and a coaxial conductive structure penetrating through the plug seat, the coaxial conductive structure comprises a hollow insulating column, a first conductive element sleeved outside the hollow insulating column and a second conductive element penetrating inside the hollow insulating column, the first conductive element is electrically connected with the first conductive terminal, and the second conductive element is electrically connected with the second conductive terminal.

2. The interchangeable head charger of claim 1, wherein the first conductive element comprises an outer copper sleeve and a conductive ring, the outer copper sleeve is sleeved outside the hollow insulating column, and the conductive ring is sleeved on the outer copper sleeve.

3. The interchangeable head charger of claim 2, wherein the plug base comprises an end cap, the end cap comprises a cover plate and a boss extending from the cover plate, the boss has a shaft hole and a plurality of positioning slots formed on an outer periphery of the shaft hole, the coaxial conductive structure is connected to the shaft hole, and the conductive ring has a positioning piece embedded in each positioning slot.

4. The interchangeable head charger of claim 3, wherein the first conductive element further comprises a conductive wire, the plug assembly further comprises a pin, one end of the conductive wire is electrically connected to the conductive ring, and the other end of the conductive wire is electrically connected to the pin.

5. The interchangeable head charger of claim 4, wherein the hollow insulating post has a terminal receiving hole, the second conductive element comprises an inner copper sleeve penetrating the terminal receiving hole, and the second conductive terminal comprises a conductive post penetrating the inner copper sleeve for electrical connection.

6. The interchangeable head charger of claim 5, wherein the second conductive element further comprises a conductive wire, the plug assembly further comprises another pin, one end of the conductive wire of the second conductive element is electrically connected to the inner copper sheath, and the other end of the conductive wire of the second conductive element is electrically connected to the other pin.

7. The interchangeable head charger of claim 1, wherein the charger body comprises a housing having a pillar with a closed end and an open end, and a side cover covering the pillar corresponding to the open end and forming the carrying surface.

8. The interchangeable head charger of claim 7, wherein the charger body further comprises a power module, the power module is disposed inside the barrel and comprises a circuit board, a plurality of electronic components and a connection port are disposed on the circuit board, a slot is disposed at the closed end of the barrel, and the connection port is disposed corresponding to the slot.

9. The interchangeable head charger of claim 7, wherein the charger body further comprises a terminal sub-socket assembly, the terminal sub-socket assembly is disposed inside the barrel and formed on one side of the side cover, the terminal sub-socket assembly comprises a terminal sub-socket and an insulating cover, and the first and second conductive terminals are covered by the terminal sub-socket and the insulating cover.

10. The interchangeable head charger of claim 9, wherein the charger body further comprises a power module, the power module is received inside the barrel and comprises a circuit board, the circuit board has two terminal slots, the first conductive terminal comprises a plug section, the second conductive terminal comprises a conductive terminal and a conductive post, the conductive terminal comprises a plug section, and each plug section is plugged corresponding to each terminal slot.

11. The electrical charger with interchangeable head having coaxial conductive structure as claimed in claim 7, wherein the side cover comprises a base plate, a terminal fixing platform and a positioning post extending from the base plate, a terminal receiving slot is disposed between a back surface of the terminal fixing platform and the positioning post, the first conductive terminal comprises a fixing section, an abutting section extending from the fixing section, and a connecting section extending from the fixing section and away from the abutting section, a positioning hole is disposed on the fixing section, the first conductive terminal is sleeved on the positioning post by the positioning hole and fixed by the connecting section passing through the terminal receiving slot.

12. The interchangeable head charger of claim 11, wherein the second conductive terminal comprises a conductive terminal and a conductive post, the conductive terminal comprises a fixed section, an abutting section extending from the fixed section, and a conductive section extending from the fixed section and away from the abutting section, the fixed section of the second conductive terminal is attached to a side of the terminal fixing platform, the conductive section of the second conductive terminal is attached to the terminal fixing platform and is connected to the conductive section of the second conductive terminal through one end of the conductive post, and the other end of the conductive post is formed in the terminal receiving slot.

13. The electrical charger with coaxial conductive structure of claim 1, wherein the electrical charger comprises a housing, the housing comprises a side cover, the side cover comprises a base plate and a protrusion extending from the base plate, a pair of hooks is formed on an end of the protrusion away from the base plate, the plug assembly comprises a plug seat, the plug seat comprises an end cover, the end cover comprises a cover plate and a protrusion extending from the cover plate, a protrusion receiving slot is formed on an end of the protrusion adjacent to the cover plate, a pair of slots is formed on the protrusion receiving slot, the protrusion receiving slot is for the insertion of the protrusion, and the slots are for the rotation of the hooks.