CN218005298U

CN218005298U - AC end PCB surface input connector

Info

Publication number: CN218005298U
Application number: CN202221808756.5U
Authority: CN
Inventors: 陈力军; 黄劲草; 夏俊青
Original assignee: Shanghai Onlan Information Technology Co ltd
Current assignee: Shanghai Onlan Information Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-12-09
Anticipated expiration: 2032-07-14

Abstract

The utility model provides an AC end PCB surface input connector, the width of a positioning boss is larger than that of a contact end; the contact piece hole is a two-end type stepped hole which is respectively a stepped small hole and a stepped large hole; the size of the stepped small hole is matched with that of the contact end; the size of the stepped large hole is matched with that of the fixed end 3; the contact piece holes are respectively inserted into the contact piece holes from the corresponding stepped large holes, the contact end penetrates through the stepped small holes and then extends out of the base, and one end face of the positioning boss is tightly attached to the stepped surfaces of the stepped small holes and the stepped large holes. The method has the advantages that the isolation and insulation between the terminals when the alternating current point is output are ensured; the inverter power supply and the wire harness can realize a full-automatic assembly process on an automatic production line, so that the production efficiency is greatly improved; and the loss of the high-power inverter power supply on the input terminal is effectively solved, the heat consumption is greatly reduced, and the problem of heating of the inverter power supply body is effectively reduced.

Description

AC end PCB surface input connector

Technical Field

The utility model relates to a PCB face input connector of AC end.

Background

The rated output power of the heavy truck vehicle-mounted high-power inverter power supply is about 1000-1500 watts. At present, the vehicle-mounted inverter power supply adopts an input voltage mode that an input power supply wire harness is directly welded on an inverter power supply circuit board, and the design can only be suitable for a low-power inverter power supply with the power lower than 150 watts. If the high-power inverter adopts the mode of directly welding the input wire harness, the welding point contact resistance of the wire harness is large, the heat consumption is high, and the production mode of manually welding the wire harness and manually assembling the inverter is backward in production process and low in production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of AC end PCB face input connector, the perpendicular grafting is to invertion power supply circuit board PCB face design structure, and the contact resistance of input terminal is at milliohm level, has solved the loss of high-power invertion power supply on the input terminal effectively, has greatly reduced the heat loss, has effectively reduced the problem that the invertion power supply body generates heat; the problems of high-voltage discharge and isolation insulation between terminals during the output of the alternating current point are also ensured; more importantly, the vertical insertion mode also enables the inverter power supply and the wire harness to realize a full-automatic assembly process on an automatic production line, so that the production efficiency is greatly improved; to overcome the disadvantages of the prior art.

The utility model provides a PCB face input connector of AC end, include: a base 100, a plurality of contacts 200; the base 100 has a number of contact holes 110; the contact holes 110 penetrate through the front and rear faces of the base 100; the number of the contact holes 110 is the same as that of the contacts 200, and the contact holes correspond to the contacts 200 one by one; the contact 200 has a contact end 210, a positioning boss 220, and a fixed end 230; the positioning boss 220 is located between the contact end 210 and the fixed end 230; the width and/or thickness of the positioning boss 220 is greater than that of the contact end 210; the contact hole 110 is a two-end type stepped hole, namely a stepped small hole 111 and a stepped large hole 112; the size of the stepped aperture 111 matches the size of the contact end 210; the size of the large stepped hole 112 matches the size of the fixing end 230; the contact holes 110 are respectively inserted into the contact holes 110 from the corresponding stepped large holes 112, the contact ends 210 extend out of the base 100 after passing through the stepped small holes 111, and one end surface of the positioning boss 220 is tightly attached to the stepped surfaces of the stepped small holes 111 and the stepped large holes 112.

Further, the utility model provides a AC end PCB face input connector can also have such characteristic: the depth of the stepped large hole 112 is the same as the length of the positioning boss 220.

Further, the utility model provides a AC end PCB face input connector can also have such characteristic: the width and thickness of the fixed end 230 are the same as the size of the contact end 210.

Further, the utility model provides a AC end PCB face input connector can also have such characteristic: a plurality of contact holes 110 are arranged in a matrix.

Further, the utility model provides a AC end PCB face input connector can also have such characteristic: the number of the contact holes 110 is 9, and is distributed 3 × 3.

Further, the utility model provides a AC end PCB face input connector can also have such characteristic: the fixed end 230 of the contact 200 is fixed on the PCB 300.

Further, the utility model provides a AC end PCB face input connector can also have such characteristic: two positioning pins 140 symmetrically arranged are arranged on the surface of the base 100 through which the stepped large hole 112 penetrates; the positioning pins 140 are inserted into the positioning holes of the PCB 300.

Further, the utility model provides a AC end PCB face input connector can also have such characteristic: the front end of the positioning pin 140 has a guide head 142.

Further, the utility model provides a AC end PCB face input connector can also have such characteristic: the guide head 142 is in the shape of a circular truncated cone.

Further, the utility model provides a AC end PCB face input connector can also have such characteristic: the surface of the base 100 penetrated by the large stepped hole 112 is also provided with two limit feet 150; the positioning pin 140 has a positioning step 141 on the circumference; the step surface of the positioning step 141 and the bottom surface of the limiting foot 150 are positioned on a plane; the step surface of the positioning step 141 and the bottom surface of the limiting pin 150 are attached to the PCB 300.

Drawings

Fig. 1 is a perspective view of the front side of an AC-side PCB panel input connector in an embodiment.

Fig. 2 is a perspective view of the rear side of the AC-side PCB panel input connector in the embodiment.

Fig. 3 is a schematic structural view of a base in the embodiment.

Fig. 4 is a half-sectional view of an AC terminal PCB panel input connector in an embodiment.

Fig. 5 is a schematic structural view of a contact in the embodiment.

Fig. 6 is a connection structure diagram of the AC terminal PCB panel input connector and the PCB panel in the embodiment.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.

Examples

In this embodiment, an AC end PCB face input connector includes: a base 100 and 9 contacts 200. The AC terminal PCB panel input connector is fixed to the PCB 300 by welding.

The base 100 has 9 contact holes 110, one-to-one corresponding to the 9 contacts 200. The contact holes 110 penetrate both front and rear faces of the base 100. The contact hole 110 is a two-step stepped hole, which is a stepped small hole 111 and a stepped large hole 112. The small stepped hole 111 penetrates the front end surface of the base 100, and the large stepped hole 112 penetrates the rear end surface of the base 100. The contact holes 110 are arranged in a matrix, specifically 3X 3. In the embodiment, the base is made of high-temperature-resistant and flame-retardant materials, so that the connector is ensured to be accurately aligned, safely and reliably produced on a wave-crest reflow soldering production line of the inverter power supply circuit board.

In this embodiment, the contact 200 has a contact end 210, a positioning boss 220, and a fixed end 230. The positioning boss 220 is located between the contact end 210 and the fixed end 230. The width of the positioning boss 220 is greater than the width of the contact end 210. Of course, the thickness of the positioning boss 220 may be greater than the thickness of the contact end 210 if the space allows. The width and thickness of the fixed end 230 are the same as those of the contact end 210, respectively.

The size of the stepped aperture 111 matches the size of the contact end 210; the size of the large stepped hole 112 matches the size of the fixing end 230; the depth of the stepped large hole 112 is the same as the length of the positioning boss 220. The contact holes 110 are respectively inserted into the contact holes 110 from the corresponding stepped large holes 112, the contact ends 210 extend out of the base 100 after passing through the stepped small holes 111, and one end surface of the positioning boss 220 is tightly attached to the stepped surfaces of the stepped small holes 111 and the stepped large holes 112. The other end face of the positioning boss 220 is flush with the rear end face of the base 100.

The surface of the base 100 through which the stepped large hole 112 passes, that is, the rear end surface of the base 100, has two positioning pins 140 symmetrically arranged. The front end of the positioning pin 140 is provided with a guide head 142; the guiding head 142 is in a cone shape and plays a guiding role. The rear end face of the base 100 is also provided with two limit feet 150. The positioning pin 140 has a positioning step 141 on the circumference; the step surface of the positioning step 141 and the bottom surface of the limiting foot 150 are positioned on a plane; the step surface of the positioning step 141 and the bottom surface of the limiting pin 150 are attached to the PCB 300. The positioning pins 140 are inserted into the positioning holes of the PCB 300. The fixed end 230 of the contact 200 is fixed to a corresponding circuit of the PCB 300. The contact 200 is directly inserted into the structure, so that the heat dissipation of the copper bar terminal on a wave-crest reflow soldering production line is effectively reduced, the welding direct current is ensured, the heat loss of the inverter power supply to the output terminal during high-power work is reduced, and the promotion effect on the effective improvement of the conversion efficiency of the inverter power supply is realized.

The PCB panel input connector at the AC end provided by this embodiment has 9 independent output terminals, and when a 220V AC power supply is ensured to be output externally, also provides 6 signal control output terminals, and provides reliable output signals for devices such as inverter power supply, vehicle electrical control, and display; and has extremely low connector surface contact resistance; the connection mode of the DIP and the PCB effectively solves the problem that the heat dissipation of the copper bar is too fast in the production welding process, and ensures the production welding quality; the convenient and reliable plug-in mode ensures the high-efficiency and safe production of the high-power inverter power supply on a full-automatic production line and an assembly line.

The embodiments described above are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. The utility model provides a PCB face input connector of AC end which characterized in that: comprises a base (100) and a plurality of contact elements (200);

wherein the base (100) has a number of contact holes (110);

the contact piece hole (110) penetrates through the front surface and the rear surface of the base (100);

the number of the contact holes (110) is the same as that of the contacts (200), and the contact holes correspond to the contacts one to one;

the contact piece (200) is provided with a contact end (210), a positioning boss (220) and a fixed end (230);

the positioning boss (220) is positioned between the contact end (210) and the fixed end (230); the width and/or thickness of the positioning boss (220) is larger than that of the contact end (210);

the contact piece hole (110) is a two-end type stepped hole, namely a stepped small hole (111) and a stepped large hole (112); the size of the stepped small hole (111) is matched with that of the contact end (210); the size of the large stepped hole (112) is matched with that of the fixed end (230);

the contact piece holes (110) are respectively inserted into the contact piece holes (110) from the corresponding stepped large holes (112), the contact ends (210) extend out of the base (100) after penetrating through the stepped small holes (111), and one end face of the positioning boss (220) is tightly attached to the stepped small holes (111) and the stepped surfaces of the stepped large holes (112).

2. The AC terminal PCB panel input connector of claim 1, wherein:

wherein the depth of the stepped large hole (112) is the same as the length of the positioning boss (220).

3. The AC terminal PCB panel input connector of claim 1, wherein:

wherein the width and thickness of the fixing end (230) are the same as the size of the contact end (210).

4. The AC terminal PCB panel input connector of claim 1, wherein:

wherein a plurality of the contact holes (110) are arranged in a matrix.

5. The AC terminal PCB panel input connector of claim 1, wherein:

wherein, the number of the contact holes (110) is 9 and is distributed in a 3X3 mode.

6. The AC terminal PCB panel input connector of claim 1, wherein:

wherein the fixed end (230) of the contact (200) is fixed on a PCB board (300).

7. The AC terminal PCB panel input connector of claim 6, wherein:

the surface of the base (100) through which the stepped large hole (112) penetrates is provided with two positioning pins (140) which are symmetrically arranged;

the positioning pin (140) is embedded in a positioning hole on the PCB (300).

8. The AC terminal PCB panel input connector of claim 7, wherein:

wherein, the front end of the positioning pin (140) is provided with a guide head (142).

9. The AC terminal PCB panel input connector of claim 8, wherein:

wherein, the guide head (142) is in a shape of a circular truncated cone.

10. The AC terminal PCB panel input connector of claim 7, wherein: the surface of the base (100) through which the large stepped hole (112) penetrates is also provided with two limiting feet (150);

the positioning pin (140) is provided with a positioning step (141) on the circumference;

the step surface of the positioning step (141) and the bottom surface of the limiting foot (150) are positioned on a plane;

the step surface of the positioning step (141) and the bottom surface of the limiting pin (150) are attached to the PCB (300).