CN211017510U

CN211017510U - A charger

Info

Publication number: CN211017510U
Application number: CN202020045224.5U
Authority: CN
Inventors: 周洪亮; 徐前; 祝义发
Original assignee: Anfu Ce Link Ltd
Current assignee: Anfu Ce Link Ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-07-14
Anticipated expiration: 2030-01-09

Abstract

The utility model discloses a charger, this charger include circuit board (2) and contact pin (3), wherein, the circuit board is equipped with elasticity and presss from both sides (21), the shell inner (31) of contact pin are inserted and are established in the elasticity presss from both sides, and receive elasticity press from both sides the extrusion and with the elasticity presss from both sides reliable electricity and connects. The charger adopts the elastic clamp to realize the electric connection of the contact pin and the circuit board, and has the characteristics of convenient disassembly/assembly, high production efficiency and the like.

Description

A charger

Technical Field

The utility model relates to a small household appliances field specifically is a plug during use and establish on the socket to carrying out the charger that charges with electrical apparatus (for example cell-phone).

Background

Electrical appliances such as smart phones and tablets are equipped with chargers. Such chargers include a circuit board and a pin, which is usually fixed to a terminal cover, with a lead soldered to an inner end of a housing of the pin and the other end of the lead soldered to the circuit board, thereby electrically connecting the pin to the circuit board. The connecting structure has the defects of complicated disassembly/assembly and limitation on production efficiency.

In addition, many products are sold to different countries and regions, but the diameters and the distances between the pins of the charger are different in different countries and regions, which results in that the charger manufacturer needs to design circuit boards with corresponding pin distances for different countries and regions, and the product design and production cycle and cost are large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a charger to solve the above-mentioned defect that prior art exists at least to a certain extent.

In order to solve the above-mentioned complicated problem of dismouting, the utility model provides a charger includes circuit board and contact pin, wherein, the circuit board is equipped with the elasticity and presss from both sides, the shell inner of contact pin is inserted and is established in the elasticity presss from both sides, and receive the elasticity press from both sides the extrusion and with the elasticity presss from both sides reliable electricity and connects.

The charger is not connected with the contact pin and the circuit board through a wire in a bridging mode, but is connected with the circuit board through the elastic clamp, so that the contact pin and the elastic clamp can be conveniently combined/separated through a plug-in/pull-out mode, the charger is more convenient to disassemble/assemble, and the production efficiency is higher.

In order to further improve the ease and reliability of assembly, it is preferable that the elastic clip includes a mouth portion having a diameter larger than a diameter of the shell inner end of the contact pin, and a clamping portion having a diameter smaller than the diameter of the shell inner end of the contact pin.

In order to further improve the ease of assembly, it is more preferable that the mouth of the elastic clip has a diameter gradually increasing from an end close to the clamping portion to an end far from the clamping portion.

The mouth part of the elastic clamp comprises two opposite vertical plates and a top plate connected to the top ends of the two vertical plates, welding feet are formed at the bottom ends of the two vertical plates, the rear ends of the two vertical plates respectively extend backwards to form two opposite and parallel clamping plates, and the two clamping plates form the clamping part.

Preferably, the elastic clamp is made of manganese steel or stainless steel.

In order to solve the problems of large product design, production period and cost, the circuit board is further provided with a plurality of elastic clamps, and the distance between every two adjacent elastic clamps is smaller than the maximum specification of multiple pin spacing specifications and larger than the minimum specification of the multiple pin spacing specifications. Because the elastic clamp has good elasticity, the effect of flexibly connecting the circuit board and the contact pins can be achieved, and through the design of the distance between the elastic clamps, the circuit board with one specification can be spliced with various contact pins with different distances and combined into various chargers with different distance specifications.

Preferably, the spacing between adjacent spring clips is equal to an average of the plurality of pin spacing specifications.

Preferably, the distance between adjacent elastic clips is 18-19 mm, the caliber of the clamping part of each elastic clip is less than 1.7mm, and the maximum caliber of the mouth part of each elastic clip is more than 1.8 mm.

More preferably, the distance between adjacent elastic clips is 18.5 mm, the caliber of the clamping part of each elastic clip is 0.9 mm, and the maximum caliber of the mouth part of each elastic clip is 2 mm.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

because the elastic clamp is adopted to realize the electric connection of the contact pin and the circuit board, the charger is convenient to disassemble and assemble and has high production efficiency.

Through the above-mentioned setting to the distance between the adjacent elasticity presss from both sides, can make the multiple charger of different interval specifications with the same kind of circuit board, reduce design production's cycle and cost.

Drawings

FIG. 1 is an exploded view of a first embodiment of the charger;

FIG. 2 is a rear perspective view of the spring clip;

FIG. 3 is a front perspective view of the spring clip;

FIG. 4 is a schematic view of a gradual change structure of the mouth of the elastic clip;

FIG. 5 is an exploded view of a second embodiment of the charger;

FIG. 6 is an exploded view of a third embodiment of the charger;

reference numerals:

1. a housing;

2. a circuit board; 21. an elastic clip; 211. a mouth; 212. a clamping portion; 213. welding a pin; 2111. a vertical plate; 2112. a top plate; 2121. a splint;

3. inserting a pin; 31. an inner end of the housing;

4. and (4) end covers.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The first embodiment: european standard two-pin charger

Referring to fig. 1, the charger includes a housing 1, a circuit board 2 and two pins 3, the circuit board 2 is welded with two elastic clips 21, the two pins 3 are fixed on an end cover 4, and inner ends 31 of the two pins 3 are respectively inserted into the two elastic clips 21 and are pressed by the elastic clips 21 so as to be reliably and electrically connected with the elastic clips 21.

During assembly, the shell inner end 31 of the pin 3 is inserted into the corresponding elastic clamp 21 on the circuit board 2, the shell 1 is sleeved outside the circuit board 2, and then the shell 1 and the end cover 4 are connected through processes such as sintering, gluing, clamping or welding. When the shell needs to be disassembled, the shell 1 and the end cover 4 are separated, and then the pin 3 is pulled out from the elastic clamp 21.

Compared with the method for bridging the contact pin and the circuit board by adopting the lead in the prior art, the charger of the embodiment omits the lead for bridging, omits the welding procedure of the lead and the contact pin and the welding procedure of the lead and the circuit board, and can complete the assembly and the electric connection of the contact pin 3 and the circuit board 2 only by the plug-in mode, thereby ensuring that the assembly and the disassembly of the charger are more convenient, the production efficiency is high, and the cost is lower.

The structure of a preferred embodiment of the spring clip 21 is shown in fig. 2-4. The elastic clamp 21 comprises a mouth part 211 and a clamping part 212, wherein the caliber of the mouth part 211 is larger than the diameter of the shell inner end 31 of the contact pin 3, and the caliber of the clamping part 212 is smaller than the diameter of the shell inner end 31 of the contact pin 3. Through the structure, not only the insertion of the contact pin 3 and the elastic clamp 21 is easier, but also the elastic clamp 21 can clamp the shell inner end 31 of the contact pin, so that the contact pin 3 and the circuit board 2 are reliably and electrically connected.

Further, the diameter of the mouth portion 211 of the elastic clip 21 gradually increases from the end portion close to the clamping portion 212 to the end portion far from the clamping portion 212, i.e., from the top to the bottom in fig. 4. In this way, the side of the spring clip 21 can guide the pin 3, and insertion of the pin 3 and the spring clip 21 is facilitated.

Referring to fig. 3, further, the mouth 211 of the elastic clip 21 includes two opposite vertical plates 2111 and a top plate 2112 connected to top ends of the two vertical plates 2111, a welding foot 213 is formed at bottom ends of the two vertical plates 2111, rear ends of the two vertical plates 2111 extend backwards to form two opposite and parallel clamping plates 2121, and the two clamping plates 2121 form the clamping portion 212. The elastic clamp 21 has a simple structure, can be integrally formed by metal plates, and is more convenient to produce.

The spring clips 21 are preferably made of manganese steel or stainless steel. The materials have the advantages of easy acquisition, good elasticity, lower cost than that of the encapsulated lead, good conductivity and the like.

The criteria for the center-to-center distance and diameter of the pins of the charger are as follows: the center distance of the European-standard contact pins is 20mm, and the diameter of the contact pins is 1.7 mm; the center distance of the Korean pins is 19mm, the diameter of the pins is 1.7mm, the center distance of the Brazilian pins is 17mm, and the diameter of the pins is 1.7 mm.

The charger is designed and produced in a long period and with high cost in order to solve the problem that circuit boards are designed respectively for different countries and regions. Further, the distance between the two elastic clips 21 is designed to be 18.5 mm, the caliber of the clamping part 212 of the elastic clip 21 is designed to be 0.9 mm, and the maximum caliber of the mouth part 211 of the elastic clip 21 is designed to be 2 mm. Namely: the spacing between the two spring clips 21 is less than the maximum gauge of 20mm and greater than the minimum gauge of 17 mm. Due to the fact that the elastic clamp 21 has good elasticity, the effect of flexibly connecting the circuit board 2 and the contact pins 3 can be achieved, and due to the design of the distance between the elastic clamp, the circuit board 2 with one specification can be plugged with the contact pins 3 with different distances to form an European-standard charger, a Korean-standard charger and a Brazilian-standard charger. Since only one specification of circuit board needs to be designed, the design and production cycle of the product can be shortened, and the cost can be reduced.

The spacing between adjacent ones of the spring clips 21 is preferably equal to an average of the plurality of pin spacing specifications.

The specific values mentioned above regarding the pitch dimension and the caliber dimension are only a preferred embodiment of the present invention. The utility model discloses in, as long as adjacent the interval between the elasticity presss from both sides 21 is between 18 to 19 millimeters, the bore of the clamping part 212 of elasticity clamp 21 is less than 1.7 millimeters, the biggest bore of the oral area 211 of elasticity clamp 21 is greater than 1.8 millimeters, all can produce european standard charger, korean standard charger, brazilian standard charger with the circuit board 2 of a specification.

Second embodiment: korean two-needle charger

Referring to fig. 5, the charger includes a housing 1, a circuit board 2 and two pins 3, the circuit board 2 is welded with two elastic clips 21, the two pins 3 are fixed on an end cover 4, and inner ends 31 of the two pins 3 are respectively inserted into the two elastic clips 21 and are pressed by the elastic clips 21 so as to be reliably and electrically connected with the elastic clips 21.

The third embodiment: baxi standard two-needle charger

Referring to fig. 6, the charger includes a housing 1, a circuit board 2 and two pins 3, the circuit board 2 is welded with two elastic clips 21, the two pins 3 are fixed on an end cover 4, and inner ends 31 of the two pins 3 are respectively inserted into the two elastic clips 21 and are pressed by the elastic clips 21 so as to be reliably and electrically connected with the elastic clips 21.

The first, second, and third embodiments described above employ circuit boards 2 of the same specification.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for assisting the skilled person in understanding the content of the present invention, and can not be understood as the limitation of the protection scope of the present invention. Various decorations, equivalent changes and the like which are performed on the scheme by the technical personnel in the field under the conception of the invention are all included in the protection scope of the invention.

Claims

1. A charger, includes circuit board (2) and contact pin (3), its characterized in that: the circuit board (2) is provided with an elastic clamp (21), and the shell inner end (31) of the contact pin (3) is inserted into the elastic clamp (21) and is extruded by the elastic clamp (21) to be reliably and electrically connected with the elastic clamp (21).

2. The charger of claim 1, wherein: the elastic clamp (21) comprises a mouth part (211) and a clamping part (212), wherein the caliber of the mouth part (211) is larger than the diameter of the shell inner end (31) of the contact pin (3), and the caliber of the clamping part (212) is smaller than the diameter of the shell inner end (31) of the contact pin (3).

3. The charger of claim 2, wherein: the caliber of the mouth part (211) of the elastic clamp (21) is gradually increased from the end part close to the clamping part (212) to the end part far away from the clamping part (212).

4. The charger of claim 3, wherein: the mouth part (211) comprises two opposite vertical plates (2111) and a top plate (2112) connected to the top ends of the two vertical plates (2111), welding feet (213) are formed at the bottom ends of the two vertical plates (2111), the rear ends of the two vertical plates (2111) respectively extend backwards to form two opposite and parallel clamping plates (2121), and the two clamping plates (2121) form the clamping part (212).

5. The charger of claim 1, wherein: the elastic clamp (21) is made of manganese steel or stainless steel.

6. The charger according to any one of claims 1 to 5, wherein: the circuit board (2) is provided with a plurality of elastic clamps (21), and the distance between adjacent elastic clamps (21) is smaller than the largest specification of multiple contact pin distance specifications and larger than the smallest specification of the multiple contact pin distance specifications.

7. The charger of claim 6, wherein: the distance between the adjacent elastic clips (21) is equal to the average value of the multiple pin distance specifications.

8. The charger of claim 7, wherein: the distance between the adjacent elastic clamps (21) is 18-19 mm, the caliber of the clamping part (212) of each elastic clamp (21) is less than 1.7mm, and the maximum caliber of the mouth part (211) of each elastic clamp (21) is more than 1.8 mm.

9. The charger of claim 8, wherein: the distance between the adjacent elastic clamps (21) is 18.5 mm, the caliber of the clamping part (212) of each elastic clamp (21) is 0.9 mm, and the maximum caliber of the opening part (211) of each elastic clamp (21) is 2 mm.