Double-contact structure of PCB (printed circuit board) of power adapter

Abstract

The utility model discloses a power adapter PCB circuit board double contact structure, the power adapter comprises an adapter housing, a PCB circuit board, a conductive elastic sheet and a metal pin, the adapter housing comprises a main housing and a cover body, and a housing accommodating cavity is formed in the adapter housing; the conductive elastic sheet is provided with a pin connecting end and a circuit board connecting end, the pin connecting end is connected with the metal pin, and the circuit board connecting end is provided with an elastic contact part; the edge part of the lower end of the PCB is covered and electroplated to form a metal covered edge, the metal covered edge is provided with a bottom contact part and a side contact part, and the elastic contact part of the conductive elastic sheet is elastically pressed and contacted with the side contact part of the metal covered edge; the cover body is located above the PCB, the cover body downwards abuts against the edge portion of the upper end of the PCB, and the horizontal contact portion of the conductive elastic piece makes contact with the bottom contact portion of the metal wrapping edge in an abutting mode. By means of the structural design, the electric connector has the advantages of being novel in structural design, stable in conductive contact and good in reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to power adapter technical field especially relates to a power adapter PCB circuit board double contact structure. BACKGROUND

[0002] The utility model discloses a power adapter plug, which comprises a shell, a plug pin, a circuit board and a conductive spring piece, and the shell has a containing cavity; the plug pin is connected to the shell and at least partially extends into the containing cavity; the circuit board is arranged in the containing cavity and is provided with a gold finger contact; the conductive spring piece is connected to the containing cavity by clamping and has a first connecting end corresponding to the plug pin and a second connecting end corresponding to the gold finger contact; the second connecting end is provided with an abutting spring piece, and the abutting spring piece abuts against the contact.

[0003] For the above-mentioned power adapter plug, the plug pin is electrically connected to the circuit board through the conductive spring piece, and the abutting spring piece of the conductive spring piece elastically abuts against and contacts the corresponding gold finger contact on the circuit board.

[0004] It should be pointed out that for the above-mentioned power adapter plug, the following defects still exist, specifically: the power adapter plug only realizes conductive contact by the elastic abutment contact between the abutting spring piece and the contact of the circuit board, and the single form of conductive contact structure still cannot guarantee the stability and reliability of the conductive contact between the conductive spring piece and the circuit board. UTILITY MODEL CONTENTS

[0005] The utility model discloses a power adapter PCB circuit board double contact structure, which is novel in design and has good stability and reliability of conductive contact.

[0006] To achieve the above-mentioned purpose, the utility model realizes the following technical scheme.

[0007] A power adapter PCB circuit board double contact structure, the power adapter comprises an adapter shell, a PCB circuit board, a conductive spring piece and a metal plug pin, the adapter shell comprises a main shell and a cover body arranged on the upper end of the main shell, and the inside of the adapter shell is formed with a shell containing cavity surrounded by the main shell and the cover body;

[0008] The PCB circuit board and the conductive spring piece are respectively embedded in the shell containing cavity, the upper end of the metal plug pin penetrates through the bottom of the main shell and extends into the shell containing cavity, and the lower end of the metal plug pin extends to the lower end side of the main shell.

[0009] The conductive elastic sheet is provided with a pin connecting end and a circuit board connecting end, the pin connecting end is connected with the upper end of the metal pin, and the circuit board connecting end is provided with an elastic contact part which is an elastic bending structure;

[0010] The lower end edge part of the PCB circuit board is formed with a metal edge covering by edge plating, the metal edge covering has a bottom contact part and a side contact part, the bottom contact part and the side contact part are an integral structure, the elastic contact part of the conductive elastic sheet elastically abuts against and contacts the side contact part of the metal edge covering.

[0011] The cover body is located above the PCB circuit board and abuts against and presses the upper end edge part of the PCB circuit board downward, the conductive elastic sheet is provided with a horizontal contact part located below the PCB circuit board, the horizontal contact part is located directly below the bottom contact part of the metal edge covering, and the horizontal contact part of the conductive elastic sheet abuts against and contacts the bottom contact part of the metal edge covering.

[0012] The horizontal contact part is located between the pin connecting end and the circuit board connecting end of the same conductive elastic sheet.

[0013] The housing accommodating cavity is formed in the main shell and is upwardly open, and the cover body is ultrasonically wave-bonded and fixed to the edge part of the upper end opening of the housing accommodating cavity.

[0014] The vertical side wall of the housing accommodating cavity is provided with two vertically-extending vertical positioning grooves which are arranged opposite to each other and correspond to the PCB circuit board, and the two vertical edge parts of the PCB circuit board are respectively embedded in the vertical positioning grooves on the corresponding sides.

[0015] The bottom surface of the housing accommodating cavity is provided with an elastic sheet positioning groove corresponding to the conductive elastic sheet, and the conductive elastic sheet is embedded and positioned in the elastic sheet positioning groove.

[0016] Compared with the prior art, the bottom contact part and the horizontal contact part abut against and contact to form a first contact point between the conductive elastic sheet and the PCB circuit board, and the elastic contact part and the side contact part elastically abut against and contact to form a second contact point between the conductive elastic sheet and the PCB circuit board, the conductive elastic sheet and the PCB circuit board can form double contact, the double contact structure of the power adapter PCB circuit board can effectively ensure the stable and reliable conductive contact between the conductive elastic sheet and the PCB circuit board, and therefore, the power adapter PCB circuit board double contact structure has the advantages of novel structure design and good stable and reliable conductive contact. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained by the drawings, but the embodiment in the drawings does not constitute any limitation to the utility model.

[0018] Figure 1 The structural schematic view of the utility model.

[0019] Figure 2 The exploded schematic view of the utility model.

[0020] Figure 3 The cross-sectional schematic view of the utility model.

[0021] In Figures 1 to 3 comprising:

[0022] 1-adapter shell; 11-main shell; 12-cover; 13-shell accommodating cavity; 14-vertical positioning groove; 15-elastic sheet positioning groove; 2-PCB circuit board; 3-conductive elastic sheet; 31-pin connecting end; 32-circuit board connecting end; 321-elastic contact part; 33-horizontal contact part; 4-metal pin; 5-metal edge cover; 51-bottom contact part; 52-side contact part. DETAILED DESCRIPTION

[0023] The utility model will be explained in combination with specific implementation.

[0024] Example one, as Figures 1 to 3 shown, a power adapter PCB circuit board double contact structure, the power adapter includes adapter shell 1, PCB circuit board 2, conductive elastic sheet 3 and metal pin 4, adapter shell 1 includes main shell 11, the cover 12 of installing on the upper end portion of main shell 11, the inside of adapter shell 1 is shaped with the shell accommodating cavity 13 that is enclosed by main shell 11, cover 12 together.

[0025] Among them, as Figure 2 and Figure 3 shown, PCB circuit board 2, conductive elastic sheet 3 are respectively embedded in shell accommodating cavity 13, and the upper end portion of metal pin 4 passes through the bottom of main shell 11 and extends to shell accommodating cavity 13, and the lower end portion of metal pin 4 extends to the lower end side of main shell 11.

[0026] Further, as Figure 2 and Figure 3 shown, conductive elastic sheet 3 is provided with pin connecting end 31, circuit board connecting end 32, pin connecting end 31 is connected with the upper end portion of metal pin 4, and circuit board connecting end 32 is provided with elastic contact part 321 that is the elastic bending structure.

[0027] More further, as Figure 2 and Figure 3As shown, the PCB circuit board 2 is vertically arranged in the housing accommodating cavity 13, and the lower end edge of the PCB circuit board 2 is surrounded by the metal edge 5, which has a bottom contact part 51 and a side contact part 52. The elastic contact part 321 of the conductive spring 3 elastically contacts the side contact part 52 of the metal edge 5.

[0028] In addition, as shown in Figures 1 to 3 , the cover 12 is located above the PCB circuit board 2, and the cover 12 elastically contacts the upper end edge of the PCB circuit board 2. The conductive spring 3 has a horizontal contact part 33 below the PCB circuit board 2, which is located below the bottom contact part 51 of the metal edge 5, and the horizontal contact part 33 of the conductive spring 3 elastically contacts the bottom contact part 51 of the metal edge 5.

[0029] It should be explained that, as shown in Figures 1 to 3 , the power adapter of the first embodiment has two spaced metal pins 4, i.e. a positive pin and a negative pin, each metal pin 4 corresponds to a conductive spring 3 and a metal edge 5, and each metal pin 4 is electrically connected to the corresponding metal edge 5 through the corresponding conductive spring 3.

[0030] It should be emphasized that, since the cover 12 of the first embodiment elastically contacts the vertically arranged PCB circuit board 2, the bottom contact part 51 of the metal edge 5 elastically contacts the horizontal contact part 33 of the corresponding conductive spring 3, so as to stably and reliably connect the bottom contact part 51 and the horizontal contact part 33. At this time, the bottom contact part 51 and the horizontal contact part 33 form the first contact point between the conductive spring 3 and the PCB circuit board 2. The circuit board connecting end 32 of the conductive spring 3 elastically contacts the side contact part 52 of the metal edge 5 through the elastic contact part 321, so as to form the second contact point between the conductive spring 3 and the PCB circuit board 2. The conductive spring 3 and the PCB circuit board 2 of the first embodiment can form double contact, which can effectively ensure the stability and reliability of the conductive contact between the conductive spring 3 and the PCB circuit board 2.

[0031] In summary, the power adapter PCB circuit board double contact structure of the first embodiment has the advantages of novel structure design and good stability and reliability of conductive contact.

[0032] As shown in Figure 2 and Figure 3 , the difference between the second embodiment and the first embodiment is that the horizontal contact part 33 is located between the pin connecting end 31 and the circuit board connecting end 32 of the same conductive spring 3.

[0033] Example 3 differs from Example 1 in that: the outer shell cavity 13 is formed on the main shell 11, and the outer shell cavity 13 opens upwards, and the cover 12 is ultrasonically pressed and fixed to the edge of the upper opening of the outer shell cavity 13.

[0034] Example 4, as Figure 2 As shown, the difference between this embodiment four and embodiment one is that: the vertical sidewall of the outer shell accommodating cavity 13 is provided with two vertical positioning grooves 14 that are arranged opposite each other and extend vertically, respectively, and the two vertical edges of the PCB circuit board 2 are respectively inserted into the vertical positioning grooves 14 on the corresponding sides.

[0035] When the PCB circuit board 2 is installed in the outer shell cavity 13 of the main housing 11, the vertical edge of the PCB circuit board 2 is positioned by the vertical positioning groove 14. This embodiment can effectively improve the convenience and accuracy of PCB circuit board 2 assembly.

[0036] Example 5, such as Figure 3 As shown, the difference between this fifth embodiment and the first embodiment is that the bottom surface of the outer shell cavity 13 is provided with a spring plate positioning groove 15 corresponding to the conductive spring plate 3, and the conductive spring plate 3 is embedded and positioned in the spring plate positioning groove 15.

[0037] When the conductive spring 3 is installed at the bottom of the housing cavity 13, the conductive spring 3 is positioned by the spring positioning groove 15. This fifth embodiment can effectively improve the convenience and accuracy of assembling the conductive spring 3.

[0038] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A power adapter PCB circuit board double contact structure, the power adapter comprising an adapter shell (1), a PCB circuit board (2), a conductive spring piece (3) and a metal pin (4), the adapter shell (1) comprising a main shell (11) and a cover (12) arranged on the upper end of the main shell (11), the inside of the adapter shell (1) being shaped into a shell containing cavity (13) enclosed by the main shell (11) and the cover (12); the PCB circuit board (2) and the conductive spring piece (3) are respectively embedded in the shell containing cavity (13), the upper end of the metal pin (4) passes through the bottom of the main shell (11) and extends into the shell containing cavity (13), and the lower end of the metal pin (4) extends to the lower end side of the main shell (11); the conductive spring piece (3) is provided with a pin connecting end (31) and a circuit board connecting end (32), the pin connecting end (31) is connected with the upper end of the metal pin (4), and the circuit board connecting end (32) is provided with an elastic contact part (321) which is an elastic bending structure; characterized in that the PCB circuit board (2) is vertically installed in the shell containing cavity (13), and the lower end edge of the PCB circuit board (2) is edge plated with a metal edge (5), the metal edge (5) specifically has a bottom contact part (51) and a side contact part (52), the bottom contact part (51) and the side contact part (52) are an integral structure, and the elastic contact part (321) of the conductive spring piece (3) elastically abuts against and contacts the side contact part (52) of the metal edge (5); the cover (12) is located above the PCB circuit board (2), and the cover (12) downward abuts against and presses the upper end edge of the PCB circuit board (2); the conductive spring piece (3) is provided with a horizontal contact part (33) located below the PCB circuit board (2), the horizontal contact part (33) is located directly below the bottom contact part (51) of the metal edge (5), and the horizontal contact part (33) of the conductive spring piece (3) abuts against and contacts the bottom contact part (51) of the metal edge (5).

2. The dual contact structure of a power adapter PCB according to claim 1, wherein: The horizontal contact part (33) is located between the pin connecting end (31) and the circuit board connecting end (32) of the same conductive spring piece (3).

3. The dual contact structure of a power adapter PCB according to claim 1, wherein: The shell containing cavity (13) is shaped in the main shell (11), and the shell containing cavity (13) is upwardly open, and the cover (12) is ultrasonically pressed and fixed on the edge of the upper end opening of the shell containing cavity (13).

4. The dual contact structure of a power adapter PCB according to claim 3, wherein: The vertical side wall of the shell containing cavity (13) is provided with two vertically extending vertical positioning grooves (14) corresponding to the PCB circuit board (2) and arranged opposite to each other, and the two vertical edges of the PCB circuit board (2) are respectively embedded in the vertical positioning grooves (14) on the corresponding sides.

5. The dual contact structure of a power adapter PCB according to claim 1, wherein: The bottom surface of the shell containing cavity (13) is provided with a spring piece positioning groove (15) corresponding to the conductive spring piece (3), and the conductive spring piece (3) is embedded and positioned in the spring piece positioning groove (15).

Images