CN214625443U

CN214625443U - Small-spacing large-current plate-to-plate connector

Info

Publication number: CN214625443U
Application number: CN202120289059.2U
Authority: CN
Inventors: 雷礼庆; 姚泽林; 孙浩亮
Original assignee: FCI Nantong Ltd
Current assignee: FCI Nantong Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-05
Anticipated expiration: 2031-02-02

Abstract

The utility model provides a booth is apart from big electric current board to board connector mainly includes: the male connector and the female connector can be assembled together in a plug-in mode; the quantity of public first power supply terminal and female seat power supply terminal all is four at least, and all is provided with metal casing in the periphery of public first connector and female seat connector. In this way, the utility model discloses can solve current board to the problem of bulky, the no signal transmission function of board heavy current connector.

Description

Small-spacing large-current plate-to-plate connector

Technical Field

The utility model belongs to the technical field of the electric connector and specifically relates to a booth is apart from big electric current board to board connector.

Background

The high-current connector is mainly used for transmitting a connector with large current, and the conventional high-current connector mainly has the following defects:

1. the conventional large-current connector is large in size and occupies an application space;

2. the design of a power terminal needs multi-point contact, and the single contact design is easy to cause contact failure;

3. if the requirements of power transmission and signal transmission are met, the conventional method uses an independent power connector and a signal transmission connector, and a product integrating a power supply and a signal is lacked;

4. the periphery of a common power supply product lacks of shielding and protecting capability of a metal shell, so that magnetic field interference on peripheral signals can be caused;

5. if the connectors do not have the interlocking structure, the connectors are easy to loosen after being matched.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a booth is apart from big current board to the board connector, can solve the problem of current board to bulky, the no signal transmission function of board heavy current connector.

The main contents of the utility model include: a small-spacing large-current board-to-board connector mainly comprises: the male connector and the female connector can be assembled together in a plug-in mode;

the male connector comprises a male PCB board, a male signal terminal, a male power terminal and a male lock catch which are inserted into the male PCB board, a male plastic body arranged at the periphery of the male signal terminal, the male power terminal and the male lock catch, and a male metal shell arranged at the periphery of the male plastic body, wherein the male metal shell is welded on the male PCB board;

the female connector comprises a female PCB board, a female signal terminal, a female power terminal and a female lock catch which are inserted into the female PCB board, a female plastic body arranged at the periphery of the female signal terminal, the female power terminal and the female lock catch, and a female metal shell arranged at the periphery of the female plastic body, wherein the female metal shell is welded on the female PCB board;

the male connector is characterized in that the male connector is connected with the female connector through the male connector power supply terminal, the male connector power supply terminal is connected with the female connector power supply terminal in a plugging mode, the male connector power supply terminal and the female connector power supply terminal can be connected in a plugging mode one by one, and the number of the male connector power supply terminal and the female connector power supply terminal is at least four.

Preferably, a locking structure or a positioning structure is arranged between the female base metal shell and the female base plastic body.

Preferably, a plurality of limiting grooves and limiting bulges are arranged between the male head metal shell and the male head plastic body.

Preferably, one end of the male lock catch is provided with an elastic sheet a, a hole B is formed in a corresponding position of the female lock catch, and the elastic sheet a can be inserted into the hole B.

Preferably, the side wall of the female base metal shell is provided with a plurality of spring plates B, and when the female connector is inserted into the male connector, the spring plates B are in contact with the inner side wall of the male metal shell.

Preferably, the female power terminal has a head portion and a spring portion, and the width and the thickness of the head portion are smaller than those of the spring portion.

Preferably, every female seat power supply terminal all is provided with four shell fragment portions, and the shell fragment part at two middle shell fragment portions and both ends is located both sides respectively makes to have a space that supplies public first power supply terminal to insert between two shell fragment portions in the middle of two shell fragment portions and two shell fragment portions at both ends.

Preferably, the distance between the two middle spring piece parts and the two end spring piece parts is set to be 2.0 mm.

Preferably, a bifurcate structure is arranged between the two middle elastic sheet parts.

The beneficial effects of the utility model reside in that:

1. the distance between the elastic pieces of the female socket power supply terminal is only 2.0mm, and the female socket power supply terminal adopts the design of four left and right elastic pieces, so that stable large current transmission is ensured;

2. the connector plastic body is surrounded by the metal shell, so that the connector plastic body can transmit large current and can be welded to a PCB (printed circuit board), and the firmness is ensured;

3. by adopting a plurality of lock catch structures, the connectors do not need to be additionally fixed after being mutually matched, and the problem of loosening of the product in a vibration environment is solved;

4. the connector is provided with a signal terminal and a high-current terminal in a mixed mode, so that high current and signals can be transmitted;

5. the connector has compact structure and small occupied space.

Drawings

FIG. 1 is a schematic perspective view of a small-pitch large-current board-to-board connector according to a preferred embodiment;

FIG. 2 is an exploded view of the male connector;

FIG. 3 is an internal schematic view of the male connector;

fig. 4 is an exploded view of the female connector;

FIG. 5 is an internal schematic view of the female connector;

fig. 6 is a side view of the female connector;

FIG. 7 is a schematic view of the A-A interface of FIG. 6;

FIG. 8 is a schematic view of the assembly of the female housing metal shell and the female housing plastic body;

fig. 9 is a schematic perspective view of the male metal shell;

fig. 10 is a schematic perspective view of the male plastic body;

FIG. 11 is a schematic view of the connection of the male power terminal and the female power terminal;

FIG. 12 is a schematic view of the male and female locking devices;

fig. 13 is a schematic perspective view of the power terminal of the female socket;

reference numerals: 1. male connector, 2, female connector, 11, male metal shell, 12, male plastic body, 13, male PCB board, 14, male power terminal, 15, male signal terminal, 16, male latch, 21, female PCB board, 22, female metal shell, 23, female plastic body, 24, female latch, 25, female power terminal, 26, female signal terminal, 27, latch structure, 111, groove a, 112, protrusion a, 113, hole a, 114, protrusion B, 121, protrusion C, 122, groove B, 161, spring a, 201, spring B, 231, protrusion D, 241, hole B, 251, head, 252, spring part, 253, bifurcated structure.

Detailed Description

The technical solution protected by the present invention will be specifically described below with reference to the accompanying drawings.

As shown in fig. 1, a small-pitch large-current board-to-board connector mainly includes: a male connector 1 and a female connector 2, wherein the male connector 1 and the female connector 2 can be spliced and assembled together;

as shown in fig. 2 and fig. 3, the male connector 1 includes a male PCB 13, a male signal terminal 15, a male power terminal 14 and a male latch 16 inserted into the male PCB 13, a male plastic body 12 disposed at the periphery of the male signal terminal 15, the male power terminal 14 and the male latch 16, a male metal shell 11 disposed at the periphery of the male plastic body 12, and the male metal shell 11 is welded to the male PCB 13;

as shown in fig. 4 and 5, the female connector 2 includes a female PCB 21, a female signal terminal 26, a female power terminal 25 and a female latch 24 inserted into the female PCB 21, a female plastic body 23 disposed at the periphery of the female signal terminal 26, the female power terminal 25 and the female latch 24, a female metal shell 22 disposed at the periphery of the female plastic body 23, the female metal shell 22 being welded to the female PCB 21;

the male connector comprises a male connector signal terminal 15, a female connector signal terminal 26, a male connector power supply terminal 14, a female connector power supply terminal 25, a male connector lock catch 16 and a female connector lock catch 24 which are connected in a one-to-one inserting mode, and the number of the male connector power supply terminals 14 and the number of the female connector power supply terminals 25 are four.

As shown in fig. 6 and 7, a locking structure 27 is disposed between the female metal shell 22 and the female plastic body 23 to ensure that the female metal shell 22 is not easily pulled out after being inserted into the female plastic body 23.

As shown in fig. 8, a groove is formed in the side wall of the female seat metal shell 22, a protrusion D231 is disposed at the corresponding female seat plastic body 23, and the protrusion D231 is clamped into the groove, so that the female seat metal shell 22 and the female seat plastic body 23 are relatively fixed.

As shown in fig. 9 and 10, a groove a111 is formed in the side wall of the male metal housing 11, a protrusion C121 is disposed at a corresponding position of the male plastic body 12, the protrusion C121 can be clamped in the groove a111, a protrusion a112 is disposed at the side wall of the male metal housing 11, a groove B122 starts at a corresponding position of the male plastic body 12, the protrusion a112 can be clamped in the groove B122, and the male plastic body 12 and the male metal housing 11 are fixed relatively under the combined action of the protrusion a112 and the groove B122. The hole A113 and the bulge B114 of the male metal shell are matched to wrap and fix the tail part of the male metal shell 11, so that the strength of the connector is ensured.

As shown in fig. 11, the male power terminal 14 and the female power terminal 25 are stably contacted by the four spring portions 252 of the female terminal, and when in use, the male power terminal 14 is inserted between the spring portions 252 of the female power terminal 25 to transmit a large current.

As shown in fig. 12, one end of the male lock 16 is provided with a spring plate a161, a hole B241 is provided at a corresponding position of the female lock 24, and the spring plate a161 can be inserted into the hole B241 to play a role of anti-loosening.

As shown in fig. 1, four spring pieces B201 are disposed on the side wall of the female socket metal shell 22, and when the female socket connector 2 is inserted into the male socket connector 1, the spring pieces B201 contact with the inner side wall of the male socket metal shell 11, so as to transmit large current.

As shown in fig. 13, the female power terminal 25 has a head portion 251 and a spring portion 252, and the head portion 251 has a width and a thickness smaller than those of the spring portion 252. The design is to prevent the stress concentration of the terminal head, and the terminal head plays the role of dispersing the stress and prolonging the service life of the terminal. Every female seat power supply terminal 25 all is provided with four shell fragment portions 252, and the shell fragment part at two middle shell fragment portions and both ends is located both sides respectively makes and has a space that supplies public first power supply terminal 14 to insert between two shell fragment portions at middle two shell fragment portions and two shell fragment portions at both ends. The interval between two middle bullet piece portions and two bullet piece portions at both ends sets up to 2.0mm for peg graft between public first power supply terminal 14 and the female seat power supply terminal 25 is more stable.

And be provided with bifurcation structure 253 between two spring leaf portions in the middle of female seat power supply terminal 25, be in order to design the single point contact after the public female terminal cooperation into the multiple spot contact, guarantee the reliability, also can guarantee simultaneously that the atress is even about, relatively stable.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a little apart from big electric current board to board connector which characterized in that mainly includes: the male connector and the female connector can be assembled together in a plug-in mode;

2. A small-space large-current board-to-board connector as claimed in claim 1, wherein a locking structure or a positioning structure is disposed between the metal shell and the plastic body.

3. A small-space large-current board-to-board connector as claimed in claim 1, wherein a plurality of limiting grooves and limiting protrusions are arranged between the male metal shell and the male plastic body.

4. The small-space large-current board-to-board connector as claimed in claim 1, wherein one end of the male lock catch is provided with a spring piece A, a hole B is formed at a corresponding position of the female lock catch, and the spring piece A can be inserted into the hole B.

5. A small-space large-current board-to-board connector as claimed in claim 1, wherein a plurality of spring pieces B are provided on the side wall of the female socket metal shell, and when the female connector is inserted into the male connector, the spring pieces B contact with the inner side wall of the male metal shell.

6. A small-pitch large current board-to-board connector according to claim 1, wherein said female power terminal has a head portion and a tab portion, said head portion having a width and a thickness smaller than a width and a thickness of said tab portion.

7. A small-space large-current board-to-board connector according to claim 1 or 6, wherein each female power terminal is provided with four spring portions, and the middle two spring portions and the two spring portions at the two ends are respectively located at the two sides, so that a space for the male power terminal to be inserted is formed between the middle two spring portions and the two spring portions at the two ends.

8. A small-pitch large current board-to-board connector according to claim 7, wherein the pitch between the middle two tab portions and the two tab portions at the two ends is set to 2.0 mm.

9. A small-pitch large current board-to-board connector according to claim 7, wherein a bifurcated structure is provided between the middle two spring pieces.